Yasushi Sakai

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Holding structures for spectacle lenses, spectacles, and method of...
- Patent number 8,256,893
- Issue date Sep 4, 2012
- Hoya Corporation
- Norihisa Onoda
- G02 - OPTICS
Information Patent Grant
Holding structure of spectacle lens, repair method for the same, an...
- Patent number 7,404,635
- Issue date Jul 29, 2008
- Hoya Corporation
- Yasushi Sakai
- G02 - OPTICS
Information Patent Grant
Holding structure of spectacle lens, repair method for the same, an...
- Patent number 7,249,844
- Issue date Jul 31, 2007
- Hoya Corporation
- Yasushi Sakai
- G02 - OPTICS
Information Patent Grant
Eyeglasses made-to-order system
- Patent number 6,736,506
- Issue date May 18, 2004
- Hoya Corporation
- Yukihiro Izumitani
- G02 - OPTICS
Information Patent Grant
Spectacle lens machining method and apparatus
- Patent number 6,572,451
- Issue date Jun 3, 2003
- Hoya Corporation
- Hakaru Fujita
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
System for making spectacles to order
- Patent number 6,533,418
- Issue date Mar 18, 2003
- Hoya Corporation
- Yukihiro Izumitani
- G02 - OPTICS
Information Patent Grant
Spectacles accommodating interchangeable/replaceable lens
- Patent number 6,340,226
- Issue date Jan 22, 2002
- Hoya Corporation
- Toshihisa Akaba
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
HOLDING STRUCTURES FOR SPECTACLE LENSES, SPECTACLES, AND METHOD OF...
- Publication number 20110037940
- Publication date Feb 17, 2011
- Norihisa Onoda
- G02 - OPTICS
Information Patent Application
Holding structure of spectacle lens, repair method for the same, an...
- Publication number 20070222941
- Publication date Sep 27, 2007
- HOYA CORPORATION
- Yasushi Sakai
- G02 - OPTICS
Information Patent Application
Holding structure of spectacle lens,method of repairing the spectacles
- Publication number 20060077337
- Publication date Apr 13, 2006
- HOYA CORPORATION
- Yasushi Sakai
- G02 - OPTICS