Yoichi Oba

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Hachioji, JA

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Patents Grantslast 30 patents

Information Patent Grant
Formation of pattern using acrylamide-diacetoneacrylamide copolymer
- Patent number 4,086,090
- Issue date Apr 25, 1978
- Hitachi, Ltd.
- Takahiro Kohashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Aluminum oxide layer bonding polymer resin layer to semiconductor d...
- Patent number 4,040,083
- Issue date Aug 2, 1977
- Hitachi, Ltd.
- Atsushi Saiki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Isolating protective film for semiconductor devices and method for...
- Patent number 4,001,870
- Issue date Jan 4, 1977
- Hitachi, Ltd.
- Atsushi Saiki
- H01 - BASIC ELECTRIC ELEMENTS