Tsuyoshi Sakurazawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Plastic lens, manufacturing method thereof, and manufacturing metho...
- Patent number 8,349,397
- Issue date Jan 8, 2013
- Hoya Corporation
- Hiroshi Kojima
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
LENS HOLDING JIG AND METHOD OF MANUFACTURING LENS BASE MATERIAL USI...
- Publication number 20120114863
- Publication date May 10, 2012
- Eiichi Yajima
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
FUNCTIONAL SILANE COMPOUND, COATING SOLUTION, AND METHOD FOR MANUFA...
- Publication number 20090317541
- Publication date Dec 24, 2009
- HOYA CORPORATION
- Minoru ITO
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Plastic Lens
- Publication number 20090311536
- Publication date Dec 17, 2009
- Hiroshi Kojima
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
PLASTIC LENS, MANUFACTURING METHOD THEREOF, AND MANUFACTURING METHO...
- Publication number 20090297807
- Publication date Dec 3, 2009
- HOYA CORPORATION
- Hiroshi Kojima
- G02 - OPTICS