Tetsuya Seki

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Suwa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical head and optical memory device
- Patent number 5,436,876
- Issue date Jul 25, 1995
- Seiki Epson Corporation
- Osamu Yokoyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of anisotropic dry etching of thin film semiconductors
- Patent number 5,194,119
- Issue date Mar 16, 1993
- Seiko Epson Corporation
- Hideaki Iwano
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of anisotropic dry etching of thin film semiconductors
- Patent number 5,145,554
- Issue date Sep 8, 1992
- Seiko Epson Corporation
- Tetsuya Seki
- H01 - BASIC ELECTRIC ELEMENTS