Taiji Ishii

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Tokyo-To, JP

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Patents Grantslast 30 patents

Information Patent Grant
Flat light source using light-diffusing sheet with projections thereon
- Patent number 5,944,405
- Issue date Aug 31, 1999
- Dai Nippon Printing Co., Ltd.
- Michiko Takeuchi
- G02 - OPTICS
Information Patent Grant
Abrasive tape and method of producing the same
- Patent number 5,908,476
- Issue date Jun 1, 1999
- Dai Nippon Printing Co., Ltd.
- Toshikazu Nishio
- B24 - GRINDING POLISHING
Information Patent Grant
Abrasive tape and method of producing the same
- Patent number 5,868,806
- Issue date Feb 9, 1999
- Dai Nippon Printing Co., Ltd.
- Toshikazu Nishio
- B24 - GRINDING POLISHING
Information Patent Grant
Abrasive tape and method of producing the same
- Patent number 5,709,598
- Issue date Jan 20, 1998
- Dai Nippon Printing Co., Ltd.
- Toshikazu Nishio
- B24 - GRINDING POLISHING