Kazumasa Ohsumi

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Hatogaya-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Liquid crystal display panel, liquid crystal display device and com...
- Patent number 7,133,091
- Issue date Nov 7, 2006
- Enplas Corporation
- Kazumasa Ohsumi
- G02 - OPTICS
Information Patent Grant
Surface light source device of side light type and liquid crystal d...
- Patent number 6,930,735
- Issue date Aug 16, 2005
- Enplas Corporation
- Shingo Ohkawa
- G02 - OPTICS
Information Patent Grant
Guide plate, surface light source device of side light type and liq...
- Patent number 6,816,214
- Issue date Nov 9, 2004
- Enplas Corporation
- Kazumasa Ohsumi
- G02 - OPTICS
Information Patent Grant
Surface light source device of side light type and liquid crystal d...
- Patent number 6,791,635
- Issue date Sep 14, 2004
- Enplas Corporation
- Shingo Ohkawa
- G02 - OPTICS
Information Patent Grant
Light guide plate, surface light source device and display
- Patent number 6,663,254
- Issue date Dec 16, 2003
- Enplas Corporation
- Kazumasa Ohsumi
- F21 - LIGHTING
Information Patent Grant
Surface light source device, display and light guide plate
- Patent number 6,612,710
- Issue date Sep 2, 2003
- Enplas Corporation
- Kazuo Suzuki
- G02 - OPTICS
Information Patent Grant
Light regulator and surface light source device
- Patent number 6,104,854
- Issue date Aug 15, 2000
- Enplas Corporation
- Kayoko Masaki
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Surface light source device of side light type and liquid crystal d...
- Publication number 20050088583
- Publication date Apr 28, 2005
- ENPLAS CORPORATION
- Shingo Ohkawa
- G02 - OPTICS
Information Patent Application
Surface light source device, display and light guide plate
- Publication number 20030007342
- Publication date Jan 9, 2003
- Kazuo Suzuki
- G02 - OPTICS
Information Patent Application
Light guide plate, surface ligjht source device and display
- Publication number 20020021563
- Publication date Feb 21, 2002
- Kazumasa Ohsumi
- G02 - OPTICS