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Kiyoshi Arai
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Hachioji, JP
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last 30 patents
Information
Patent Grant
Picture conversion method and medium used therefor
Patent number
6,124,859
Issue date
Sep 26, 2000
Hitachi, Ltd.
Youichi Horii
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Sign recognition apparatus and method and sign translation system u...
Patent number
5,887,069
Issue date
Mar 23, 1999
Hitachi, Ltd.
Hiroshi Sakou
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method of supporting perspective projection
Patent number
5,870,099
Issue date
Feb 9, 1999
Hitachi, Ltd.
Yoichi Horii
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Sign language learning system and method
Patent number
5,544,050
Issue date
Aug 6, 1996
Hitachi, Ltd.
Masahiro Abe
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS