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Gas laser generator
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Patent number 4,602,372
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Issue date Jul 22, 1986
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Hitachi, Ltd.
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Kouji Sasaki
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H01 - BASIC ELECTRIC ELEMENTS
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Gas laser device
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Patent number 4,590,599
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Issue date May 20, 1986
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Hitachi, Ltd.
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Yukio Kawakubo
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H01 - BASIC ELECTRIC ELEMENTS
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Gas laser
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Patent number 4,500,998
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Issue date Feb 19, 1985
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Hitachi, Ltd.
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Kouji Kuwabara
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H01 - BASIC ELECTRIC ELEMENTS
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Vacuum interrupter
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Patent number 4,336,430
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Issue date Jun 22, 1982
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Hitachi, Ltd.
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Yukio Kurosawa
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H01 - BASIC ELECTRIC ELEMENTS
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Vacuum interrupter
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Patent number 4,196,327
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Issue date Apr 1, 1980
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Hitachi, Ltd.
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Yukio Kurosawa
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H01 - BASIC ELECTRIC ELEMENTS