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Keiichi Asakura
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Kanagawa, JP
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last 30 patents
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Patent Grant
Audio signal processor and audio device
Patent number
6,681,018
Issue date
Jan 20, 2004
Sony Corporation
Keiichi Asakura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Electronic device for selecting inputs and outputs of audio-visual...
Patent number
6,490,009
Issue date
Dec 3, 2002
Sony Corporation
Keiichi Asakura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Single remote control system for plurality of audio and visual equi...
Patent number
6,313,812
Issue date
Nov 6, 2001
Sony Corporation
Shuichi Nagano
G11 - INFORMATION STORAGE
Information
Patent Grant
Apparatus for relocating, grouping and housing a plurality of recor...
Patent number
6,115,332
Issue date
Sep 5, 2000
Sony Corporation
Keiichi Asakura
G11 - INFORMATION STORAGE
Information
Patent Grant
Key input method and circuit
Patent number
5,969,645
Issue date
Oct 19, 1999
Sony Corporation
Keiichi Asakura
H03 - BASIC ELECTRONIC CIRCUITRY