Masaru Egawa

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Ina, JP

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Patents Grantslast 30 patents

Information Patent Grant
Electronic sunglasses
- Patent number 5,015,086
- Issue date May 14, 1991
- Seiko Epson Corporation
- Etsuo Okaue
- G02 - OPTICS
Information Patent Grant
Contact lens article made of silicon- and fluorine-containing resin
- Patent number 4,933,406
- Issue date Jun 12, 1990
- Nippon Oil and Fats Co., Ltd.
- Keizo Anan
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...