Youichi Ogawa

Follow

Person

Ibaraki-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Perpendicular magnetic recording medium and method for producing th...
- Patent number 5,068,144
- Issue date Nov 26, 1991
- Hitachi Maxell, Ltd.
- Osamu Kitakami
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Multilens member, illumination apparatus, and liquid crystal displa...
- Publication number 20080259248
- Publication date Oct 23, 2008
- Hitachi Maxell, Ltd.
- Katsusuke Shimazaki
- G02 - OPTICS