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Masayuki Akiyama
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Tokyo, JP
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last 30 patents
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Patent Grant
Separation/synthesis mirror device in liquid filled housing with in...
Patent number
5,339,158
Issue date
Aug 16, 1994
Pioneer Electronic Corporation
Masayuki Akiyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Patent Grant
Three color separation/synthesis mirror device
Patent number
5,260,830
Issue date
Nov 9, 1993
Pioneer Electronic Corporation
Masami Nishida
G02 - OPTICS
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Patent Grant
Cooling device for a liquid crystal panel
Patent number
5,170,195
Issue date
Dec 8, 1992
Pioneer Electronic Corporation
Masayuki Akiyama
G02 - OPTICS