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Akira Shinzawa
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Yokohama, JP
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last 30 patents
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Patent Grant
Fire-retardant electric device
Patent number
4,812,262
Issue date
Mar 14, 1989
Nippon Oil Co., Ltd.
Akira Shinzawa
H01 - BASIC ELECTRIC ELEMENTS
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Patent Grant
Flame-retardant electrical insulating oil composition
Patent number
4,566,994
Issue date
Jan 28, 1986
Nippon Oil Co., Ltd.
Hiroshi Hasegawa
H01 - BASIC ELECTRIC ELEMENTS