Hirofumi Ohsawa

Follow

Person

Kawasaki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Servo track writing device and method thereof
- Patent number 7,233,453
- Issue date Jun 19, 2007
- Fujitsu Limited
- Tohru Harada
- G11 - INFORMATION STORAGE
Information Patent Grant
Servo track writer and driving method therefor
- Patent number 6,760,180
- Issue date Jul 6, 2004
- Fujitsu Limited
- Seiji Kino
- G11 - INFORMATION STORAGE
Information Patent Grant
Precise positioning device and method for servo track writing
- Patent number 6,452,739
- Issue date Sep 17, 2002
- Fujitsu Limited
- Yoshinori Hino
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Servo track writing device and method thereof
- Publication number 20040105184
- Publication date Jun 3, 2004
- FUJITSU LIMITED
- Tohru Harada
- G11 - INFORMATION STORAGE
Information Patent Application
Servo track writer and driving method therefor
- Publication number 20020145819
- Publication date Oct 10, 2002
- FUJITSU LIMITED
- Seiji Kino
- G11 - INFORMATION STORAGE