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Research Output 1993 2019

  • 944 Citations
  • 15 h-Index
  • 84 Article
  • 14 Conference article
  • 3 Conference contribution
2019

Active magnetic bearing for a liquid nitrogen pump

Kamioka, Y., Kajikawa, K., Hirai, H., Ozaki, S., Nakamura, T., Imagawa, S. & Ishiyama, A., Jun 3 2019, In : IOP Conference Series: Materials Science and Engineering. 502, 1, 012153.

Research output: Contribution to journalConference article

Open Access
Bearings (structural)
Magnetic bearings
Liquid nitrogen
Pumps
Submersible pumps
2018

Suppression of flux creep in HTS coil by applying low AC magnetic field

Kajikawa, K., Honda, T. & Tadakuma, K., Apr 1 2018, In : IEEE Transactions on Applied Superconductivity. 28, 3, 8246546.

Research output: Contribution to journalArticle

alternating current
Creep
coils
retarding
Magnetic fields
2017
1 Citation (Scopus)

Numerical reproduction of screening-current-induced fields in HTS tape windings using finite element method

Okabe, Y., Honda, T. & Kajikawa, K., Jul 26 2017, In : Journal of Physics: Conference Series. 871, 1, 012047.

Research output: Contribution to journalConference article

tapes
finite element method
screening
conductors
vector currents
2016
2 Citations (Scopus)

AC loss evaluation of an HTS insert for high field magnet cooled by cryocoolers

Kajikawa, K., Awaji, S. & Watanabe, K., Dec 1 2016, In : Cryogenics. 80, p. 215-220 6 p.

Research output: Contribution to journalArticle

high field magnets
inserts
Magnets
alternating current
evaluation
7 Citations (Scopus)
shaking
Induced currents
Tapes
tapes
Copper
2015
2 Citations (Scopus)

A 1.5-T magic-angle spinning NMR magnet: 4.2-K performance and field mapping test results

Voccio, J., Hahn, S., Kim, Y., Song, J., Kajikawa, K., Noguchi, S., Bascunan, J. & Iwasa, Y., Jun 1 2015, In : IEEE Transactions on Applied Superconductivity. 25, 3, 6971077.

Research output: Contribution to journalArticle

Magic angle spinning
metal spinning
Magnets
magnets
Nuclear magnetic resonance
7 Citations (Scopus)

AC losses of an HTS insert in a 25-T cryogen-free superconducting magnet

Awaji, S., Kajikawa, K., Watanabe, K., Oguro, H., Mitose, T., Fujita, S., Daibo, M., Iijima, Y., Miyazaki, H., Takahashi, M. & Ioka, S., Jun 1 2015, In : IEEE Transactions on Applied Superconductivity. 25, 3, 6945815.

Research output: Contribution to journalArticle

Superconducting magnets
superconducting magnets
inserts
alternating current
Hysteresis
57 Citations (Scopus)

A high-resolution 1.3-GHz/54-mm LTS/HTS NMR magnet

Iwasa, Y., Bascuñán, J., Hahn, S., Voccio, J., Kim, Y., Lécrevisse, T., Song, J. & Kajikawa, K., Jun 1 2015, In : IEEE Transactions on Applied Superconductivity. 25, 3, 6926794.

Research output: Contribution to journalArticle

Magnets
magnets
coils
Nuclear magnetic resonance
nuclear magnetic resonance
25 Citations (Scopus)

Designs and tests of shaking coils to reduce screening currents induced in HTS insert coils for NMR magnet

Kajikawa, K., Gettliffe, G. V., Chu, Y., Miyagi, D., Lécrevisse, T. P., Hahn, S., Bascuñán, J. & Iwasa, Y., Jun 1 2015, In : IEEE Transactions on Applied Superconductivity. 25, 3, 6926807.

Research output: Contribution to journalArticle

shaking
Induced currents
inserts
Magnets
Screening
2014
2 Citations (Scopus)

Development of degaussing system of magnetic filters for high gradient magnetic separation to improve recovery ratio of trapped magnetic Nanobeads

Kajikawa, K., Ueda, H., Kamioka, Y., Agatsuma, K., Fuchino, S., Furuse, M., Iitsuka, T. & Nakamura, S., 2014, In : IEEE Transactions on Applied Superconductivity. 24, 3, 6595624.

Research output: Contribution to journalArticle

Degaussing
Magnetic filters
Magnetic separation
Superconducting magnets
superconducting magnets
6 Citations (Scopus)

Development of superconducting high gradient magnetic separation system for medical protein separation

Fuchino, S., Furuse, M., Agatsuma, K., Kamioka, Y., Iitsuka, T., Nakamura, S., Ueda, H. & Kajikawa, K., Jan 1 2014, In : IEEE Transactions on Applied Superconductivity. 24, 3, 6590026.

Research output: Contribution to journalArticle

Magnetic separation
proteins
Proteins
gradients
Thermal load
6 Citations (Scopus)

Feasibility Study for Elimination of the Screening Current-Induced Fields in HTS Coil

Kim, K. L., Hahn, S., Choi, Y. H., Kim, Y. G., Kang, D. H., Kajikawa, K. & Lee, H. G., Jan 1 2014, In : Journal of Superconductivity and Novel Magnetism. 28, 1, p. 83-88 6 p.

Research output: Contribution to journalArticle

Induced currents
elimination
Screening
coils
screening
2 Citations (Scopus)

Medical protein separation system using high gradient magnetic separation by superconducting magnet

Kamioka, Y., Agatsuma, K., Kajikawa, K., Ueda, H., Furuse, M., Fuchino, S., Iitsuka, T. & Nakamura, S., Jan 1 2014, Advances in Cryogenic Engineering - Transactions of the Cryogenic Engineering Conference - CEC, Volume 59. Breon, S., Marquardt, J., Peterson, T., DiPirro, M., Pfotenhauer, J., Demko, J., Fesmire, J., Klebaner, A., Yuan, S., Zeller, A., Kittel, P., Nellis, G. & Zagarola, M. (eds.). American Institute of Physics Inc., p. 1129-1134 6 p. (AIP Conference Proceedings; vol. 1573).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

superconducting magnets
beads
proteins
gradients
demagnetization
1 Citation (Scopus)

Numerical optimization of mono filamentary MgB 2 wires with different metal sheath materials for liquid hydrogen level sensor

Kajikawa, K., Inoue, T., Watanabe, K., Yamada, Y. & Aoki, I., Jan 1 2014, Advances in Cryogenic Engineering - Transactions of the Cryogenic Engineering Conference - CEC, Volume 59. Breon, S., Marquardt, J., Peterson, T., DiPirro, M., Pfotenhauer, J., Demko, J., Fesmire, J., Klebaner, A., Yuan, S., Zeller, A., Kittel, P., Nellis, G. & Zagarola, M. (eds.). American Institute of Physics Inc., p. 905-912 8 p. (AIP Conference Proceedings; vol. 1573).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

liquid hydrogen
sheaths
wire
optimization
sensors
3 Citations (Scopus)

Performance of filters in medical protein separation system using superconducting magnet

Ueda, H., Agatsuma, K., Furuse, M., Fuchino, S., Kajikawa, K., Kamioka, Y., Iitsuka, T. & Nakamura, S., Jan 1 2014, In : IEEE Transactions on Applied Superconductivity. 24, 3, 6678093.

Research output: Contribution to journalArticle

Superconducting magnets
superconducting magnets
proteins
Proteins
filters
2013
1 Citation (Scopus)

Demonstration of transfer of liquid helium using a pump system with mgb2 wires

Kajikawa, K., Kuga, H., Inoue, T., Watanabe, K., Uchida, Y., Nakamura, T., Wakuda, T. & Tanaka, K., Jan 1 2013, In : Journal of Superconductivity and Novel Magnetism. 26, 5, p. 1537-1541 5 p.

Research output: Contribution to journalArticle

Helium
liquid helium
Demonstrations
Pumps
wire
11 Citations (Scopus)

Development of stator windings for fully superconducting motor with MgB2 wires

Kajikawa, K., Uchida, Y., Nakamura, T., Kobayashi, H., Wakuda, T. & Tanaka, K., Apr 8 2013, In : IEEE Transactions on Applied Superconductivity. 23, 3, 6410357.

Research output: Contribution to journalArticle

stators
Stators
wire
Wire
rotors

Transport ac loss properties of a Bi-2223 superconducting coil from 0.1 Hz to 10 Hz

Funaki, K., Kurawaki, M., Sato, S., Kajikawa, K., Iwakuma, M., Hayashi, T., Kato, T. & Fujino, K., Jan 28 2013, In : IEEE Transactions on Applied Superconductivity. 23, 3, 6374230.

Research output: Contribution to journalArticle

coils
alternating current
filaments
Superconducting coils
wire
2012
12 Citations (Scopus)

Development and fundamental study on a superconducting induction/ synchronous motor incorporated with MgB 2 cage windings

Nakamura, T., Yamada, Y., Nishio, H., Kajikawa, K., Sugano, M., Amemiya, N., Wakuda, T., Takahashi, M. & Okada, M., Jan 1 2012, In : Superconductor Science and Technology. 25, 1, 014004.

Research output: Contribution to journalArticle

synchronous motors
induction motors
Synchronous motors
Induction motors
takeoff
3 Citations (Scopus)

Development of a liquid hydrogen transfer pump system with MgB 2 wires

Kajikawa, K., Kuga, H., Inoue, T., Watanabe, K., Uchida, Y., Nakamura, T., Kobayashi, H., Hongo, M., Kojima, T., Taguchi, H., Naruo, Y., Wakuda, T. & Tanaka, K., Nov 1 2012, In : Cryogenics. 52, 11, p. 615-619 5 p.

Research output: Contribution to journalArticle

liquid hydrogen
Hydrogen
Pumps
wire
Wire
7 Citations (Scopus)

Performance of induction/synchronous motor having MgB 2 cage windings for liquid hydrogen circulation pump

Nakamura, T., Nishio, H., Amemiya, N., Kajikawa, K. & Wakuda, T., Jun 25 2012, In : IEEE Transactions on Applied Superconductivity. 22, 3, 5200404.

Research output: Contribution to journalArticle

synchronous motors
induction motors
liquid hydrogen
Synchronous motors
Induction motors

PIT processed MgB 2 thin wires sheathed with stainless steel

Yamada, Y., Kanazawa, M., Ohno, T., Tachikawa, K., Kajikawa, K., Inoue, T., Aoki, I., Matsumoto, A. & Kumakura, H., Jun 25 2012, In : IEEE Transactions on Applied Superconductivity. 22, 3, 6082402.

Research output: Contribution to journalArticle

Stainless Steel
Powders
stainless steels
Stainless steel
wire
3 Citations (Scopus)

Proposal of a new type of superconducting level sensor for liquid hydrogen with MgB2 wires

Kajikawa, K., Inoue, T., Watanabe, K., Kanazawa, M., Yamada, Y., Kobayashi, H., Taguchi, H. & Aoki, I., Jan 1 2012, In : Physics Procedia. 36, p. 1396-1401 6 p.

Research output: Contribution to journalConference article

liquid hydrogen
proposals
wire
sensors
heat balance
19 Citations (Scopus)

Reduction of magnetization in windings composed of HTS tapes

Kajikawa, K. & Funaki, K., Jun 25 2012, In : IEEE Transactions on Applied Superconductivity. 22, 3, 6111255.

Research output: Contribution to journalArticle

High temperature superconductors
high temperature superconductors
Tapes
tapes
Magnetization
2011
9 Citations (Scopus)

AC loss evaluation of MgB 2 superconducting windings located in a stator core slot with a finite-element method

Kajikawa, K., Osaka, R., Nakamura, T., Sugano, M. & Wakuda, T., Jan 1 2011, In : Journal of Superconductivity and Novel Magnetism. 24, 1-2, p. 987-991 5 p.

Research output: Contribution to journalArticle

stators
slots
Stators
alternating current
finite element method
25 Citations (Scopus)
Superconducting tapes
Shielding
tapes
shielding
Magnetization
3 Citations (Scopus)

Proposal of new structure of MgB2 wires with low AC loss for stator windings of fully superconducting motors located in iron core slots

Kajikawa, K., Osaka, R., Kuga, H., Nakamura, T. & Wakuda, T., Nov 1 2011, In : Physica C: Superconductivity and its applications. 471, 21-22, p. 1470-1473 4 p.

Research output: Contribution to journalArticle

Cable cores
stators
slots
Stators
proposals
2010
14 Citations (Scopus)

AC losses in monofilamentary MgB2 round wire carrying alternating transport currents

Kajikawa, K., Kawano, T., Osaka, R., Nakamura, T., Sugano, M., Takahashi, M. & Wakuda, T., Mar 30 2010, In : Superconductor Science and Technology. 23, 4, 045026.

Research output: Contribution to journalArticle

alternating current
wire
Wire
sheaths
Niobium
2 Citations (Scopus)

Automatic development of normal zone in composite MgB2/CuNi wires with different diameters

Jokinen, A., Kajikawa, K., Takahashi, M. & Okada, M., Jan 1 2010, In : Journal of Physics: Conference Series. 234, PART 1, 012021.

Research output: Contribution to journalArticle

heaters
wire
composite materials
sensors
liquid hydrogen
5 Citations (Scopus)

Dependence of transport-current losses in MgB2 superconducting wire on temperature and frequency

Kajikawa, K., Kawano, T., Osaka, R., Nakamura, T., Sugano, M., Takahashi, M. & Wakuda, T., Jun 1 2010, In : IEEE Transactions on Applied Superconductivity. 20, 3, p. 2111-2114 4 p., 5443621.

Research output: Contribution to journalArticle

Superconducting wire
wire
Wire
alternating current
Temperature
11 Citations (Scopus)

Improvement of a high-gradient magnetic separation system for trapping immunoglobulin in serum

Ueda, H., Agatsuma, K., Fuchino, S., Imura, T., Furuse, M., Kajikawa, K., Ishiyama, A., Koizumi, T. & Miyake, S., Jun 1 2010, In : IEEE Transactions on Applied Superconductivity. 20, 3, p. 949-952 4 p., 5438893.

Research output: Contribution to journalArticle

Magnetic separation
serums
affinity
Immunoglobulins
beads
2 Citations (Scopus)
Superconducting materials
strip
alternating current
Magnetic fields
evaluation

Numerical simulation of thermal stability of a small coil using a Ta-barrier MgB 2 multifilamentary superconducting wire

Nakao, A., Tanaka, K., Uratake, Y., Kajikawa, K., Funaki, K. & Okada, M., Mar 1 2010, In : Research Reports on Information Science and Electrical Engineering of Kyushu University. 15, 1, p. 47-53 7 p.

Research output: Contribution to journalArticle

Superconducting wire
Numerical models
Thermodynamic stability
Computer simulation
Temperature distribution
2 Citations (Scopus)

Superconducting properties and workability of stainless steel/iron sheathed MgB 2 thin wires

Yamada, Y., Kanazawa, M., Nemoto, Y., Tachikawa, K., Kajikawa, K., Murase, S. & Kumakura, H., Jul 1 2010, In : Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals. 74, 7, p. 434-438 5 p.

Research output: Contribution to journalArticle

Stainless Steel
stainless steels
Stainless steel
Iron
wire
2009
Superconducting wire
Magnesium
Hydrogen
Sensors
Liquids
14 Citations (Scopus)

Design and test of filter of high gradient magnetic separation system for trapping immunoglobulin in serum

Ueda, H., Agatsuma, K., Kajikawa, K., Furuse, M., Fuchino, S. & Ishiyama, A., Jun 1 2009, In : IEEE Transactions on Applied Superconductivity. 19, 3, p. 2157-2161 5 p., 5109581.

Research output: Contribution to journalArticle

Magnetic separation
beads
serums
affinity
Immunoglobulins
6 Citations (Scopus)

Numerical evaluation of AC loss properties in assembled superconductor strips exposed to perpendicular magnetic field

Kajikawa, K., Funaki, K., Shikimachi, K., Hirano, N. & Nagaya, S., Oct 15 2009, In : Physica C: Superconductivity and its applications. 469, 15-20, p. 1436-1438 3 p.

Research output: Contribution to journalArticle

Superconducting materials
strip
alternating current
Magnetic fields
evaluation
35 Citations (Scopus)

Proposal of a fully superconducting motor for liquid hydrogen pump with MgB2 wire

Kajikawa, K. & Nakamura, T., Jun 1 2009, In : IEEE Transactions on Applied Superconductivity. 19, 3, p. 1669-1673 5 p., 5067125.

Research output: Contribution to journalArticle

liquid hydrogen
proposals
Hydrogen
Pumps
wire
2008
2 Citations (Scopus)

AC loss properties of Cu-sheathed MgB2 composites with Nb barriers

Funaki, K., Sueyoshi, T., Kajikawa, K., Iwakuma, M., Tanaka, K., Okada, M., Kumakura, H. & Hayashi, H., Feb 1 2008, In : Journal of Physics: Conference Series. 97, 1, 012316.

Research output: Contribution to journalArticle

filaments
alternating current
composite materials
liquid helium
coils
14 Citations (Scopus)

AC loss properties of MgB2 multifilament wires

Tanaka, K., Funaki, K., Sueyoshi, T., Sasashige, Y., Kajikawa, K., Iwakuma, M., Okada, M., Kumakura, H. & Hayashi, H., Sep 1 2008, In : Superconductor Science and Technology. 21, 9, 095007.

Research output: Contribution to journalArticle

alternating current
wire
Wire
hollow
filaments
6 Citations (Scopus)

Finite element analysis of pulsed field magnetization process in a cylindrical bulk superconductor

Kajikawa, K., Yokoo, R., Tomachi, K., Enpuku, K., Funaki, K., Hayashi, H. & Fujishiro, H., Sep 15 2008, In : Physica C: Superconductivity and its Applications. 468, 15-20, p. 1494-1497 4 p.

Research output: Contribution to journalArticle

Superconducting materials
Magnetization
Finite element method
magnetization
Magnetic fields
14 Citations (Scopus)

Fundamental investigation of a superconducting level sensor for liquid hydrogen with MgB2 wire

Kajikawa, K., Tomachi, K., Maema, N., Matsuo, M., Sato, S., Funaki, K., Kumakura, H., Tanaka, K., Okada, M., Nakamichi, K., Kihara, Y., Kamiya, T. & Aoki, I., Feb 1 2008, In : Journal of Physics: Conference Series. 97, 1, 012140.

Research output: Contribution to journalArticle

liquid hydrogen
wire
sensors
taps
liquid levels
24 Citations (Scopus)

Hysteretic ac loss of polygonally arranged superconducting strips carrying ac transport current

Mawatari, Y. & Kajikawa, K., Jan 18 2008, In : Applied Physics Letters. 92, 1, 012504.

Research output: Contribution to journalArticle

strip
cables
conductors
4 Citations (Scopus)

Numerical evaluation of pulsed field magnetization in a bulk superconductor using energy minimization technique

Kajikawa, K., Yokoo, R., Tomachi, K., Enpuku, K., Funaki, K., Hayashi, H. & Fujishiro, H., Jun 1 2008, In : IEEE Transactions on Applied Superconductivity. 18, 2, p. 1557-1560 4 p., 4512022.

Research output: Contribution to journalArticle

Superconducting materials
Magnetization
magnetization
optimization
evaluation
2007
1 Citation (Scopus)

Current sharing among filaments for Bi-2223 Ag-sheathed tapes with inter-filament barrier

Kajikawa, K., Iiyama, Y., Enpuku, K. & Funaki, K., Oct 1 2007, In : Physica C: Superconductivity and its applications. 463-465, SUPPL., p. 852-856 5 p.

Research output: Contribution to journalArticle

Inductance
Tapes
tapes
filaments
current distribution
14 Citations (Scopus)
strip
magnetic fields
critical current
2 Citations (Scopus)

Numerical evaluation of AC loss property in Bi-2223 tapes affected by multifilament structure

Kajikawa, K., Nakamura, D., Hayashi, T. & Funaki, K., Jun 1 2007, In : IEEE Transactions on Applied Superconductivity. 17, 2, p. 2410-2413 4 p.

Research output: Contribution to journalArticle

Tapes
tapes
alternating current
wire
Wire
2006
14 Citations (Scopus)

Alternating current loss in radially arranged superconducting strips

Mawatari, Y. & Kajikawa, K., Feb 27 2006, In : Applied Physics Letters. 88, 9, 092503.

Research output: Contribution to journalArticle

strip
alternating current
configurations
6 Citations (Scopus)

Feasibility study on a new three-phase power transmission cable with radial arrangement of superconducting tapes

Kajikawa, K., Mawatari, Y., Iiyama, Y., Hayashi, T., Enpuku, K., Funaki, K., Furuse, M. & Fuchino, S., Oct 1 2006, In : Physica C: Superconductivity and its applications. 445-448, 1-2, p. 1058-1061 4 p.

Research output: Contribution to journalArticle

Superconducting tapes
power transmission
Power transmission
Tapes
cables

Finite element analysis of thermal and mechanical behaviors in fault current limiter model with QMG bulk superconductors

Kajikawa, K., Takahashi, Y., Enpuku, K., Funaki, K., Hayashi, H., Morita, M. & Hirano, H., Jun 1 2006, In : IEEE Transactions on Applied Superconductivity. 16, 2, p. 666-669 4 p., 1642936.

Research output: Contribution to journalArticle

Superconducting fault current limiters
Fault current limiters
Power transmission
Superconducting materials
Electric lines