Akira Sekiguchi

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Kamakura, JP

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Patents Grantslast 30 patents

Information Patent Grant
Equipment for producing high voltage rectifying units
- Patent number 4,128,378
- Issue date Dec 5, 1978
- Hitachi, Ltd.
- Shinpei Otsu
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL