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Yukio Akashi
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Osaka, JP
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last 30 patents
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Patent Grant
Illumination control method and illumination device
Patent number
6,611,297
Issue date
Aug 26, 2003
Matsushita Electric Industrial Co., Ltd.
Yukio Akashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Patent Grant
Light irradiation method for varying a perceived brightness
Patent number
6,285,134
Issue date
Sep 4, 2001
Matsushita Electric Industrial Co., Ltd.
Tadashi Yano
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR