Hirayama Hiromitsu

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Funabashi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Switched mode DC to DC converter using variable leakage transformer
- Patent number 4,342,075
- Issue date Jul 27, 1982
- TDK Electronics
- Hirayama Hiromitsu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Variable leakage transformer and control circuit therefore
- Patent number 4,328,458
- Issue date May 4, 1982
- TDK Electronics Co., Ltd.
- Hirayama Hiromitsu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Variable leakage transformer
- Patent number 4,327,348
- Issue date Apr 27, 1982
- TDK Electronics Co., Ltd.
- Hiromitsu Hirayama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Variable leakage transformer
- Patent number 4,213,084
- Issue date Jul 15, 1980
- TDK Electronics Company Limited
- Hirayama Hiromitsu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER