Tomotaka Ito

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing plano lens
- Patent number 6,471,814
- Issue date Oct 29, 2002
- Sony Corporation
- Tomotaka Ito
- G02 - OPTICS
Information Patent Grant
Surface light source system
- Patent number 6,464,367
- Issue date Oct 15, 2002
- Sony Corporation
- Tomotaka Ito
- G02 - OPTICS
Information Patent Grant
Method of manufacturing plano lens
- Patent number 6,342,121
- Issue date Jan 29, 2002
- Sony Corporation
- Tomotaka Ito
- G02 - OPTICS
Information Patent Grant
Plano lens, rear-projection type projector screen employing the sam...
- Patent number 6,262,840
- Issue date Jul 17, 2001
- Sony Corporation
- Hidetoshi Watanabe
- G02 - OPTICS
Information Patent Grant
Planar type lens manufacturing method
- Patent number 6,261,402
- Issue date Jul 17, 2001
- Sony Corporation
- Hidetoshi Watanabe
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Plano lens, rear-projection type projector screen employing the sam...
- Patent number 6,172,814
- Issue date Jan 9, 2001
- Sony Corporation
- Hidetoshi Watanabe
- G02 - OPTICS
Information Patent Grant
Method of manufacturing plano lens
- Patent number 6,096,159
- Issue date Aug 1, 2000
- Sony Corporation
- Tomotaka Ito
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
METHOD OF MANUFACTURING PLANO LENS
- Publication number 20020117255
- Publication date Aug 29, 2002
- Tomotaka Ito
- G02 - OPTICS
Information Patent Application
Planar type lens manufacturing method
- Publication number 20010054478
- Publication date Dec 27, 2001
- Hidetoshi Watanabe
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Surface light source system
- Publication number 20010017774
- Publication date Aug 30, 2001
- Tomotaka Ito
- G02 - OPTICS