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Naotaka Yasuda
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Kawachinagano, JP
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last 30 patents
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Patent Grant
Audio dubbing system for digital audio recorder
Patent number
6,389,399
Issue date
May 14, 2002
Sanyo Electric Co., Ltd.
Naotaka Yasuda
G11 - INFORMATION STORAGE
Information
Patent Grant
Braille recognition system
Patent number
5,982,911
Issue date
Nov 9, 1999
Sanyo Electric Co., Ltd.
Kiyoshi Matsumoto
G06 - COMPUTING CALCULATING COUNTING
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Patent Grant
Braille recognition system with ternary-coding
Patent number
5,920,649
Issue date
Jul 6, 1999
Sanyo Electric Co., Ltd.
Naotaka Yasuda
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS