Masahiro Ishikawa

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Marugame, JP

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Patents Grantslast 30 patents

Information Patent Grant
Transformer zero-phase current transformer
- Patent number 5,691,686
- Issue date Nov 25, 1997
- Mitsubishi Denki Kabushiki Kaisha
- Masahiro Ishikawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control unit, plug-in unit, transformer, zero-phase current transfo...
- Patent number 5,539,614
- Issue date Jul 23, 1996
- Mitsubishi Denki Kabushiki Kaisha
- Masahiro Ishikawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control unit, plug-in unit, transformer, zero-phase current transfo...
- Patent number 5,532,432
- Issue date Jul 2, 1996
- Mitsubishi Denki Kabushiki
- Masahiro Ishikawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Apparatus and method for forming a switchboard unit circuit
- Patent number 5,423,684
- Issue date Jun 13, 1995
- Mitsubishi Denki Kabushiki Kaisha
- Masahiro Ishikawa
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS