Minoru Sugawara

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for formation of silicon carbide film
- Patent number 5,390,626
- Issue date Feb 21, 1995
- Hoya Corporation
- Hiroyuki Nagasawa
- C30 - CRYSTAL GROWTH
Information Patent Grant
X-ray mask and method of manufacturing an X-ray mask
- Patent number 5,005,075
- Issue date Apr 2, 1991
- Hoya Corporation
- Masato Kobayashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY