Toshifumi Hatagami

Follow

Person

Kawasaki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Integrated circuit and circuit board
- Patent number 7,511,507
- Issue date Mar 31, 2009
- Fujitsu Limited
- Toshifumi Hatagami
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for head control, and disk-drive apparatus
- Patent number 7,230,787
- Issue date Jun 12, 2007
- Fujitsu Limited
- Toshifumi Hatagami
- G11 - INFORMATION STORAGE
Information Patent Grant
Actuator having MR element protecting means
- Patent number 6,163,443
- Issue date Dec 19, 2000
- Fujitsu Limited
- Toshifumi Hatagami
- G11 - INFORMATION STORAGE
Information Patent Grant
Seek control method and apparatus for disk apparatus
- Patent number 5,268,884
- Issue date Dec 7, 1993
- Fujitsu Limited
- Tsutomu Kiuchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Synchronizing signal switching system for synchronizing external st...
- Patent number 5,216,654
- Issue date Jun 1, 1993
- Fujitsu Limited
- Masahiro Itoh
- G11 - INFORMATION STORAGE
Information Patent Grant
Synchronous rotation control system of magnetically recording disk
- Patent number 4,978,902
- Issue date Dec 18, 1990
- Fujitsu Limited
- Toshifumi Hatagami
- G11 - INFORMATION STORAGE
Information Patent Grant
Multi-positioner magnetic disk storage apparatus having means for r...
- Patent number 4,967,293
- Issue date Oct 30, 1990
- Fujitsu Limited
- Keiji Aruga
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Integrated circuit and circuit board
- Publication number 20070013359
- Publication date Jan 18, 2007
- FUJITSU LIMITED
- Toshifumi Hatagami
- G01 - MEASURING TESTING
Information Patent Application
Method and apparatus for head control, and disk-drive apparatus
- Publication number 20050141122
- Publication date Jun 30, 2005
- Fujistu Limited
- Toshifumi Hatagami
- G11 - INFORMATION STORAGE