Yukihiro Izumitani

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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
Eyeglasses made-to-order system
- Patent number 6,736,506
- Issue date May 18, 2004
- Hoya Corporation
- Yukihiro Izumitani
- G02 - OPTICS
Information Patent Grant
Spectacles lens boring jig positioning device
- Patent number 6,561,738
- Issue date May 13, 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
Information Patent Grant
Spectacle lens holding structure
- Patent number 5,646,706
- Issue date Jul 8, 1997
- Hoya Corporation
- Yukihiro Izumitani
- 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
Eyeglasses made-to-order system
- Publication number 20030090625
- Publication date May 15, 2003
- HOYA CORPORATION
- Yukihiro Izumitani
- G02 - OPTICS