Takao Koshikawa

Person

Kawasaki-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Magnetic head and magnetic disk apparatus
- Patent number 7,142,393
- Issue date Nov 28, 2006
- Fujitsu Limited
- Koki Kanda
- G11 - INFORMATION STORAGE
Information Patent Grant
Thin film magnetic head slider and electrostatic actuator for drivi...
- Patent number 6,594,119
- Issue date Jul 15, 2003
- Fujitsu Limited
- Takao Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium having linear or curved tracking servo pa...
- Patent number 6,324,032
- Issue date Nov 27, 2001
- Fujitsu Limited
- Yoshinori Ohtsuka
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Apparatus for recognizing spin valve head failure due to pin layer...
- Patent number 6,295,175
- Issue date Sep 25, 2001
- Fujitsu Limited
- Isamu Tomita
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magnetic head with improved floating surface
- Patent number 6,282,061
- Issue date Aug 28, 2001
- Fujitsu Limited
- Koki Kanda
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for the production of a magnetic head
- Patent number 6,199,267
- Issue date Mar 13, 2001
- Fujitsu, Limited
- Takao Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Thin film magnetic head slider and electrostatic actuator for drivi...
- Patent number 6,181,531
- Issue date Jan 30, 2001
- Fujitsu Limited
- Takao Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head including a pole piece with soft magnetic particles d...
- Patent number 6,134,079
- Issue date Oct 17, 2000
- Fujitsu Limited
- Takao Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Thin film magnetic head and process for producing same
- Patent number 6,083,410
- Issue date Jul 4, 2000
- Fujitsu Ltd.
- Yukinori Ikegawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium and method of forming the same and magnet...
- Patent number 6,055,139
- Issue date Apr 25, 2000
- Fujitsu Limited
- Yoshinori Ohtsuka
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magnetoresistive head with a front flux guide and an embedded MR el...
- Patent number 5,995,339
- Issue date Nov 30, 1999
- Fujitsu Limited
- Takao Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head and method for production thereof
- Patent number 5,966,277
- Issue date Oct 12, 1999
- Fujitsu Limited
- Takao Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of making a thin film magnetic slider
- Patent number 5,920,978
- Issue date Jul 13, 1999
- Fujitsu Limited
- Takao Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-resistive effect type head with step or protrusion for redu...
- Patent number 5,898,542
- Issue date Apr 27, 1999
- Fujitsu Limited
- Takao Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-resistive effect type head with step or protrusion for redu...
- Patent number 5,896,243
- Issue date Apr 20, 1999
- Fujitsu Limited
- Takao Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Spin valve magnetoresistive head with spun valves connected in series
- Patent number 5,859,753
- Issue date Jan 12, 1999
- Fujitsu Limited
- Yoshinori Ohtsuka
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Storage device having vibratory head
- Patent number 5,793,560
- Issue date Aug 11, 1998
- Fujitsu Limited
- Yoshifumi Mizoshita
- G11 - INFORMATION STORAGE
Information Patent Grant
Horizontal type magneto-resistive head using flux guide
- Patent number 5,777,827
- Issue date Jul 7, 1998
- Fujitsu Limited
- Yoshifumi Mizoshita
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetoresistive head and magnetic recording/reproducing apparatus
- Patent number 5,771,141
- Issue date Jun 23, 1998
- Fujitsu Limited
- Yoshinori Ohtsuka
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic memory device
- Patent number 5,717,630
- Issue date Feb 10, 1998
- Fujitsu Limited
- Takao Koshikawa
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Perpendicular magnetic recording medium having a soft magnetic unde...
- Patent number 5,589,262
- Issue date Dec 31, 1996
- Fujitsu Limited
- Katsumi Kiuchi
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magneto-resistive head using flux guide
- Patent number 5,583,726
- Issue date Dec 10, 1996
- Fujitsu Limited
- Yoshifumi Mizoshita
- G11 - INFORMATION STORAGE
Information Patent Grant
Thin-film magnetic head with separate recording and reproducing gaps
- Patent number 5,493,464
- Issue date Feb 20, 1996
- Fujitsu Limited
- Takao Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Storage device having vibratory head
- Patent number 5,400,192
- Issue date Mar 21, 1995
- Fujitsu Limited
- Yoshifumi Mizoshita
- G11 - INFORMATION STORAGE
Information Patent Grant
Thin film magnetic head for perpendicular recording and reproducing
- Patent number 4,974,110
- Issue date Nov 27, 1990
- Fujitsu Limited
- Michiaki Kanamine
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Magnetic head and magnetic disk apparatus
- Publication number 20020015265
- Publication date Feb 7, 2002
- FUJITSU LIMITED
- Koki Kanda
- G11 - INFORMATION STORAGE

Takao Koshikawa

Person

Patents Grantslast 30 patents

Magnetic head and magnetic disk apparatus

Thin film magnetic head slider and electrostatic actuator for drivi...

Magnetic recording medium having linear or curved tracking servo pa...

Apparatus for recognizing spin valve head failure due to pin layer...

Magnetic head with improved floating surface

Method for the production of a magnetic head

Thin film magnetic head slider and electrostatic actuator for drivi...

Magnetic head including a pole piece with soft magnetic particles d...

Thin film magnetic head and process for producing same

Magnetic recording medium and method of forming the same and magnet...

Magnetoresistive head with a front flux guide and an embedded MR el...

Magnetic head and method for production thereof

Method of making a thin film magnetic slider

Magneto-resistive effect type head with step or protrusion for redu...

Magneto-resistive effect type head with step or protrusion for redu...

Spin valve magnetoresistive head with spun valves connected in series

Storage device having vibratory head

Horizontal type magneto-resistive head using flux guide

Magnetoresistive head and magnetic recording/reproducing apparatus

Magnetic memory device

Perpendicular magnetic recording medium having a soft magnetic unde...

Magneto-resistive head using flux guide

Thin-film magnetic head with separate recording and reproducing gaps

Storage device having vibratory head

Thin film magnetic head for perpendicular recording and reproducing

Patents Applicationslast 30 patents

Magnetic head and magnetic disk apparatus