Hiroki Matsukuma

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Multi-channel head
- Patent number 7,924,533
- Issue date Apr 12, 2011
- TDK Corporation
- Kazuhiko Maejima
- G11 - INFORMATION STORAGE
Information Patent Grant
Thin-film magnetic head comprising contact pad including portions o...
- Patent number 7,724,474
- Issue date May 25, 2010
- TDK Corporation
- Kazuhiko Maejima
- G11 - INFORMATION STORAGE
Information Patent Grant
Thin-film magnetic head with heating element and heatsink
- Patent number 7,649,713
- Issue date Jan 19, 2010
- TDK Corporation
- Norikazu Ota
- G11 - INFORMATION STORAGE
Information Patent Grant
Thin-film magnetic head with heater spaced further from medium faci...
- Patent number 7,623,322
- Issue date Nov 24, 2009
- TDK Corporation
- Tsuyoshi Umehara
- G11 - INFORMATION STORAGE
Information Patent Grant
Exposure mask, method of forming resist pattern and method of formi...
- Patent number 7,604,910
- Issue date Oct 20, 2009
- TDK Corporation
- Akifumi Kamijima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Thin-film magnetic head with heater in overcoat multilayer, head gi...
- Patent number 7,583,479
- Issue date Sep 1, 2009
- TDK Corporation
- Tsuyoshi Umehara
- G11 - INFORMATION STORAGE
Information Patent Grant
Thin-film magnetic head for perpendicular magnetic recording and ma...
- Patent number 7,443,633
- Issue date Oct 28, 2008
- TDK Corporation
- Katsumichi Tagami
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus for lapping thin film magnetic heads
- Patent number 7,326,102
- Issue date Feb 5, 2008
- SAE Magnetics (HK) Ltd.
- Ryuji Fujii
- B24 - GRINDING POLISHING
Information Patent Grant
Magnetic head driving circuit and magnetic disk device
- Patent number 7,221,529
- Issue date May 22, 2007
- TDK Corporation
- Mitsuo Otsuki
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk drive apparatus and method for compensating character...
- Patent number 7,173,786
- Issue date Feb 6, 2007
- TDK Corporation
- Yosuke Antoku
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording and reproducing apparatus and magnetic recording...
- Patent number 7,158,340
- Issue date Jan 2, 2007
- TDK Corporation
- Katsumichi Tagami
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of inspecting thin-film magnetic head and method of making t...
- Patent number 7,075,294
- Issue date Jul 11, 2006
- TDK Corporation
- Hiroki Matsukuma
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
MULTI-CHANNEL HEAD
- Publication number 20070291411
- Publication date Dec 20, 2007
- TDK Corporation
- Kazuhiko MAEJIMA
- G11 - INFORMATION STORAGE
Information Patent Application
Exposure mask, method of forming resist pattern and method of formi...
- Publication number 20070196745
- Publication date Aug 23, 2007
- TDK Corporation
- Akifumi Kamijima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Thin-film magnetic head with closure and magnetic recording apparatus
- Publication number 20070035877
- Publication date Feb 15, 2007
- TDK Corporation
- Kazuhiko Maejima
- G11 - INFORMATION STORAGE
Information Patent Application
Thin-film magnetic head with heating element and heatsink
- Publication number 20060291098
- Publication date Dec 28, 2006
- TDK CORPORATION
- Norikazu Ota
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic disk drive apparatus and method for compensating character...
- Publication number 20060215308
- Publication date Sep 28, 2006
- TDK Corporation
- Yosuke Antoku
- G11 - INFORMATION STORAGE
Information Patent Application
Thin-film magnetic head for perpendicular magnetic recording and ma...
- Publication number 20060132972
- Publication date Jun 22, 2006
- TDK Corporation
- Katsumichi Tagami
- G11 - INFORMATION STORAGE
Information Patent Application
Thin-film magnetic head with a heater, head gimbal assembly with th...
- Publication number 20060007594
- Publication date Jan 12, 2006
- TDK Corporation
- Tsuyoshi Umehara
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording and reproducing apparatus and magnetic recording...
- Publication number 20050286155
- Publication date Dec 29, 2005
- TDK Corporation
- Katsumichi Tagami
- G11 - INFORMATION STORAGE
Information Patent Application
Thin-film magnetic head with heater in overcoat multilayer, head gi...
- Publication number 20050270694
- Publication date Dec 8, 2005
- TDK Corporation
- Tsuyoshi Umehara
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic head driving circuit and magnetic disk device
- Publication number 20050195513
- Publication date Sep 8, 2005
- TDK CORPORATION
- Mitsuo Otsuki
- G11 - INFORMATION STORAGE
Information Patent Application
Apparatus and method for lapping thin film magnetic heads
- Publication number 20050095956
- Publication date May 5, 2005
- SAE Magnetics (H. K.) Ltd.
- Ryuji Fujii
- B24 - GRINDING POLISHING
Information Patent Application
Head gimbal assembly with magnetic head slider and magnetic disk dr...
- Publication number 20050078413
- Publication date Apr 14, 2005
- SAE Magnetics (H. K.) Ltd.
- Tatsushi Shimizu
- G11 - INFORMATION STORAGE
Information Patent Application
Method of inspecting thin-film magnetic head and method of making t...
- Publication number 20050073300
- Publication date Apr 7, 2005
- TDK Corporation
- Hiroki Matsukuma
- G11 - INFORMATION STORAGE

Hiroki Matsukuma

Person

Patents Grantslast 30 patents

Multi-channel head

Thin-film magnetic head comprising contact pad including portions o...

Thin-film magnetic head with heating element and heatsink

Thin-film magnetic head with heater spaced further from medium faci...

Exposure mask, method of forming resist pattern and method of formi...

Thin-film magnetic head with heater in overcoat multilayer, head gi...

Thin-film magnetic head for perpendicular magnetic recording and ma...

Apparatus for lapping thin film magnetic heads

Magnetic head driving circuit and magnetic disk device

Magnetic disk drive apparatus and method for compensating character...

Magnetic recording and reproducing apparatus and magnetic recording...

Method of inspecting thin-film magnetic head and method of making t...

Patents Applicationslast 30 patents

MULTI-CHANNEL HEAD

Exposure mask, method of forming resist pattern and method of formi...

Thin-film magnetic head with closure and magnetic recording apparatus

Thin-film magnetic head with heating element and heatsink

Magnetic disk drive apparatus and method for compensating character...

Thin-film magnetic head for perpendicular magnetic recording and ma...

Thin-film magnetic head with a heater, head gimbal assembly with th...

Magnetic recording and reproducing apparatus and magnetic recording...

Thin-film magnetic head with heater in overcoat multilayer, head gi...

Magnetic head driving circuit and magnetic disk device

Apparatus and method for lapping thin film magnetic heads

Head gimbal assembly with magnetic head slider and magnetic disk dr...

Method of inspecting thin-film magnetic head and method of making t...