Masami Watase

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Phase shift mask and method of fabricating the same
- Patent number 5,536,603
- Issue date Jul 16, 1996
- Kabushiki Kaisha Toshiba
- Takashi Tsuchiya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Apparatus for forming a silicon oxide film on a silicon wafer
- Patent number 5,489,336
- Issue date Feb 6, 1996
- Kabushiki Kaisha Toshiba
- Masako Kodera
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for forming a silicon oxide film on a silicon waffer
- Patent number 5,395,645
- Issue date Mar 7, 1995
- Kabushiki Kaisha Toshiba
- Masako Kodera
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for etching a pattern
- Patent number 4,954,218
- Issue date Sep 4, 1990
- Kabushiki Kaisha Toshiba
- Katsuya Okumura
- H01 - BASIC ELECTRIC ELEMENTS