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Masanori Tsumura
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Yokohama, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Lens for projector
Patent number
D647931
Issue date
Nov 1, 2011
Hitachi Consumer Electronics Co., Ltd.
Masayuki Fukui
D16 - Photography and optical equipment
Information
Patent Grant
Lens for projector
Patent number
D645068
Issue date
Sep 13, 2011
Hitachi Consumer Electronics Co., Ltd.
Masayuki Fukui
D16 - Photography and optical equipment
Information
Patent Grant
Mirror for projector
Patent number
D639076
Issue date
Jun 7, 2011
Hitachi Consumer Electronics Co., Ltd.
Masayuki Fukui
D06 - Furnishings