Takao Kawaguchi

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Moriguchi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of electrically testing active matrix substrate
- Patent number 4,940,934
- Issue date Jul 10, 1990
- Matsushita Electric Industrial Co., Ltd.
- Takao Kawaguchi
- G01 - MEASURING TESTING
Information Patent Grant
Display apparatus
- Patent number 4,938,566
- Issue date Jul 3, 1990
- Matsushita Electric Industrial Co., Ltd.
- Etsuya Takeda
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Method for production of thin film transistor array substrates
- Patent number 4,778,560
- Issue date Oct 18, 1988
- Matsushita Electric Industrial Co., Ltd.
- Etsuya Takeda
- G02 - OPTICS
Information Patent Grant
Optical switch
- Patent number 4,715,680
- Issue date Dec 29, 1987
- Matsushita Electric Industrial Co., Ltd.
- Takao Kawaguchi
- G02 - OPTICS