Yasuhisa Okamoto

Follow

Person

Ho Chi Minh, VN

People

Patents Grantslast 30 patents

Information Patent Grant
Urethane-based optical member and method for producing same
- Patent number 9,499,656
- Issue date Nov 22, 2016
- Hoya Corporation
- Yasuhisa Okamoto
- G02 - OPTICS
Information Patent Grant
Urethane-based optical component and manufacturing process therefor
- Patent number 9,193,831
- Issue date Nov 24, 2015
- Hoya Corporation
- Masahisa Kousaka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
URETHANE-BASED OPTICAL COMPONENT AND MANUFACTURING PROCESS THEREFOR
- Publication number 20140243496
- Publication date Aug 28, 2014
- HOYA CORPORATION
- Masahisa Kousaka
- G02 - OPTICS