Kazumasa Doi

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Kawasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Transparent optical device and fabrication method thereof
- Patent number 6,372,392
- Issue date Apr 16, 2002
- Fujitsu Limited
- Eiichi Hoshino
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Phase shift mask and its manufacturing method
- Patent number 5,527,647
- Issue date Jun 18, 1996
- Fujitsu Limited
- Kazumasa Doi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY