Naoki Shimada

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Patents Grantslast 30 patents

Information Patent Grant
Optical recording medium
- Patent number 6,277,461
- Issue date Aug 21, 2001
- Dai Nippon Printing Co., Ltd.
- Hiroyuki Naganuma
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Ticket and ticket rewriting apparatus
- Patent number 6,052,137
- Issue date Apr 18, 2000
- Dai Nippon Printing Co., Ltd.
- Naoki Shimada
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Polymer dispersed liquid crystal (PDLC) film using heat or an elect...
- Patent number 6,002,383
- Issue date Dec 14, 1999
- Dai Nippon Printing Co., Ltd.
- Naoki Shimada
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method of orienting liquid crystal of liquid crystal display medium...
- Patent number 5,847,786
- Issue date Dec 8, 1998
- Dai Nippon Printing Co., Ltd.
- Naoki Shimada
- G02 - OPTICS