Yoshimi Katou

Follow

Person

Takahagi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical memory and information processing apparatus
- Patent number 5,371,730
- Issue date Dec 6, 1994
- Hitachi, Ltd.
- Yoshihito Maeda
- G11 - INFORMATION STORAGE
Information Patent Grant
Information processing apparatus and optical head incorporated therein
- Patent number 5,317,556
- Issue date May 31, 1994
- Hitachi, Ltd.
- Nobuyoshi Tsuboi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording medium
- Patent number 5,187,052
- Issue date Feb 16, 1993
- Hitachi, Ltd.
- Yoshihito Maeda
- G11 - INFORMATION STORAGE