Yoshihiro Kumagai

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Kitakanbara-gun, JP

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Patents Grantslast 30 patents

Information Patent Grant
Rear projection screen with shifted lens
- Patent number 7,136,224
- Issue date Nov 14, 2006
- Kuraray Co., Ltd.
- Yoshihiro Kumagai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Rear projection screen and rear projection display apparatus
- Patent number 7,061,676
- Issue date Jun 13, 2006
- Kuraray Co., Ltd.
- Yoshihiro Kumagai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Rear projection screen incorporating a prism
- Patent number 6,292,295
- Issue date Sep 18, 2001
- Kuraray Co., Ltd.
- Hajime Yamashita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Optical device and Fresnel lens sheet
- Patent number 6,282,034
- Issue date Aug 28, 2001
- Kuraray Co., Ltd.
- Ikuo Onishi
- G02 - OPTICS
Information Patent Grant
Lenticular lens sheet
- Patent number 5,724,188
- Issue date Mar 3, 1998
- Kuraray Co., Ltd.
- Yoshihiro Kumagai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Rear-projection screen
- Patent number 5,432,636
- Issue date Jul 11, 1995
- Kuraray Co., Ltd.
- Masaki Ishii
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Rear Surface Projection Type Screen and Rear Surface Projection Typ...
- Publication number 20090002818
- Publication date Jan 1, 2009
- KURARAY CO., LTD.
- Hiroki Iwabu
- G02 - OPTICS
Information Patent Application
Fresnel Lens Sheet, Rear Projection Type Screen and Rear Projection...
- Publication number 20080013171
- Publication date Jan 17, 2008
- KURARAY CO., LTD.
- Yoshihiro Kumagai
- G02 - OPTICS
Information Patent Application
Transparent screen
- Publication number 20050117212
- Publication date Jun 2, 2005
- KURARAY CO., LTD.
- Yoshihiro Kumagai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Rear projection screen and rear projection display apparatus
- Publication number 20040156103
- Publication date Aug 12, 2004
- Kuraray Co., Ltd
- Yoshihiro Kumagai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY