Osamu Asai

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Photochromic film, photochromic lens comprising the same, and metho...
- Patent number RE46357
- Issue date Apr 4, 2017
- Hoya Corporation
- Osamu Asai
Information Patent Grant
Photochromic film, photochromic lens comprising the same, and metho...
- Patent number 7,999,989
- Issue date Aug 16, 2011
- Hoya Corporation
- Osamu Asai
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Optical lens base with protective film and process for producing op...
- Patent number 7,813,059
- Issue date Oct 12, 2010
- Hoya Corporation
- Osamu Asai
- B24 - GRINDING POLISHING
Information Patent Grant
Optical lens base with protective film and process for producing op...
- Patent number 7,660,051
- Issue date Feb 9, 2010
- Hoya Corporation
- Osamu Asai
- B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

Information Patent Application
METHOD OF MANUFACTURING POLARIZING LENS AND POLARIZING LENS
- Publication number 20120154910
- Publication date Jun 21, 2012
- HOYA CORPORATION
- Eiichi Yajima
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
METHOD OF MANUFACTURING POLARIZING LENS, POLARIZING LENS, AND METHO...
- Publication number 20120140323
- Publication date Jun 7, 2012
- HOYA CORPORATION
- Eiichi Yajima
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
OPTICAL LENS BASE WITH PROTECTIVE FILM AND PROCESS FOR PRODUCING OP...
- Publication number 20100097568
- Publication date Apr 22, 2010
- Osamu Asai
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
PHOTOCHROMIC FILM, PHOTOCHROMIC LENS COMPRISING THE SAME, AND METHO...
- Publication number 20090316246
- Publication date Dec 24, 2009
- HOYA CORPORATION
- Osamu Asai
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Optical lens base with protective film and process for producing op...
- Publication number 20070002454
- Publication date Jan 4, 2007
- Osamu Asai
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL