SEIKO OPTICAL PRODUCTS CO., LTD.

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Tokyo, JP

Organizations

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Patents Grantslast 30 patents

Information Patent Grant
Progressive power lens and method of designing the same
- Patent number 7,874,673
- Issue date Jan 25, 2011
- Seiko Epson Corporation
- Toshihide Shinohara
- G02 - OPTICS
Information Patent Grant
Spectacle lens and spectacles
- Patent number 7,445,333
- Issue date Nov 4, 2008
- Seiko Optical Products Co., Ltd.
- Moriyasu Shirayanagi
- G02 - OPTICS

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Patents Applicationslast 30 patents

Information Patent Application
Progressive Power Lens And Method Of Designing The Same
- Publication number 20100245763
- Publication date Sep 30, 2010
- SEIKO EPSON CORPORATION
- Toshihide SHINOHARA
- G02 - OPTICS
Information Patent Application
SPECTACLE LENS AND SPECTACLES
- Publication number 20060274258
- Publication date Dec 7, 2006
- PENTAX CORPORATION
- Moriyasu SHIRAYANAGI
- G02 - OPTICS