Research Output 1983 2020

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1986
38 Citations (Scopus)

Anomalous magnetic behavior due to reversible fluxoid motion in superconducting multifilamentary wires with very fine filaments

Sumiyoshi, F., Matsuyama, M., Noda, M., Matsushita, T., Funaki, K., Iwakuma, M. & Yamafuji, K., Feb 1986, In : Japanese Journal of Applied Physics. 25, 2 A, p. L148-L150

Research output: Contribution to journalArticle

Superconducting wire
Hysteresis
filaments
wire
critical current

Dynamic characteristics of the push‐pull dc‐dc converter

Shoyama, M. & Harada, K., Jan 1 1986, In : Electronics and Communications in Japan (Part II: Electronics). 69, 5, p. 100-109 10 p.

Research output: Contribution to journalArticle

Electric instrument transformers
dynamic characteristics
converters
transformers
Transfer functions
3 Citations (Scopus)

Dynamic Characterstics of the Push-Pull DC to DC Converter

Shoyama, M. & Harada, K., Jan 1986, In : IEEE Transactions on Power Electronics. PE-1, 1, p. 3-8 6 p.

Research output: Contribution to journalArticle

8 Citations (Scopus)

Effects of tin-diffusion barriers on hysteresis loss and coupling current loss in bronze-processed Nb3Sn multifilamentary composites

Miyahara, K., Sumiyoshi, F., Funaki, K., Iwakuma, M., Kubota, Y., Ogasawara, T. & Yamafuji, K., Apr 1986, In : Cryogenics. 26, 4, p. 234-241 8 p.

Research output: Contribution to journalArticle

Diffusion barriers
Tin
Bronze
bronzes
Hysteresis
converters
transistors
saturation
Feedback
Switching frequency
10 Citations (Scopus)

On the High-Speed Turn-Off of a Power Transistor By a Small Saturable Core

Harada, K., Sakamoto, H. & Shoyama, M., Jul 1986, In : IEEE Transactions on Power Electronics. PE-1, 3, p. 175-180 6 p.

Research output: Contribution to journalArticle

Switching frequency
Equivalent circuits
Inductance
Deterioration
Capacitance
1985

On the turn-off of GTO by a small saturable core

Harada, K., Sakamoto, H. & Shoyama, M., Jan 1 1985, In : IEEJ Transactions on Electronics, Information and Systems. 105, 11, p. 219-226 8 p.

Research output: Contribution to journalArticle

1984
1 Citation (Scopus)

A practical in situ wire: a composite wire with many in situ processed Nb3Sn cores of an internal diffusion type

Yamafuji, K., Sumiyoshi, F., Akenaga, Y., Iwakuma, M., Onodera, R. & Mori, N., Apr 1984, In : Cryogenics. 24, 4, p. 191-199 9 p.

Research output: Contribution to journalArticle

Cable cores
wire
Wire
composite materials
Composite materials
7 Citations (Scopus)

Steady-State Characteristics of the Push-Pull DC-to-DC Converter

Shoyama, M. & Harada, K., 1984, In : IEEE Transactions on Aerospace and Electronic Systems. AES-20, 1, p. 50-56 7 p.

Research output: Contribution to journalArticle

Inductance
Electric potential
1983
2 Citations (Scopus)

Megahertz dc-to-dc converters controlled by an amorphous core

Harada, K., Sakamoto, H., Sasada, I. & Shoyama, M., Sep 1983, In : IEEE Transactions on Magnetics. 19, 5, p. 2082-2084 3 p.

Research output: Contribution to journalArticle

Multivibrators
Networks (circuits)
Bipolar transistors
Transistors
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