Hideo Fujiwara

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Magneto-optical recording medium
- Patent number 5,965,286
- Issue date Oct 12, 1999
- Hitachi Maxell, Ltd.
- Satoru Ohnuki
- G11 - INFORMATION STORAGE
Information Patent Grant
Giant magnetoresistive effect sensor, particularly having a multila...
- Patent number 5,648,885
- Issue date Jul 15, 1997
- Hitachi, Ltd.
- Koichi Nishioka
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magneto-optical recording medium
- Patent number 5,639,563
- Issue date Jun 17, 1997
- Hitachi Maxell, Ltd.
- Satoru Ohnuki
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 5,543,221
- Issue date Aug 6, 1996
- Hitachi Maxell, Ltd.
- Osamu Kitakami
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 5,480,694
- Issue date Jan 2, 1996
- Hitachi Maxell, Ltd.
- Hideo Daimon
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium comprising an aluminum substrate in which...
- Patent number 5,139,884
- Issue date Aug 18, 1992
- Hitachi Maxell, Ltd.
- Hideo Daimon
- G11 - INFORMATION STORAGE
Information Patent Grant
Thin soft magnetic film and method of manufacturing the same
- Patent number 5,135,818
- Issue date Aug 4, 1992
- Hitachi Maxell, Ltd.
- Yutaka Shimada
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Perpendicular magnetic recording medium and method for producing th...
- Patent number 5,068,144
- Issue date Nov 26, 1991
- Hitachi Maxell, Ltd.
- Osamu Kitakami
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 5,068,152
- Issue date Nov 26, 1991
- Hitachi Maxell, Ltd.
- Tsuyoshi Maro
- G11 - INFORMATION STORAGE
Information Patent Grant
Soft magnetic materials comprising 9 to 15 atomic percent carbon atoms
- Patent number 5,059,337
- Issue date Oct 22, 1991
- Hitachi Maxell, Ltd.
- Tsuyoshi Maro
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Composite magnetic head
- Patent number 5,057,955
- Issue date Oct 15, 1991
- Hitachi Maxell, Ltd.
- Osamu Inagoya
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical data recording medium and manufacturing method thereof
- Patent number 5,021,276
- Issue date Jun 4, 1991
- Hitachi Maxell, Ltd.
- Hisamitsu Kamezaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical data recording medium
- Patent number 4,996,089
- Issue date Feb 26, 1991
- Hitachi Maxell, Ltd.
- Osamu Saito
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 4,987,039
- Issue date Jan 22, 1991
- Hitachi, Ltd.
- Hideo Daimon
- G11 - INFORMATION STORAGE
Information Patent Grant
Amorphous magnetic alloy of Co-Nb-Zr system and magnetic head made...
- Patent number 4,972,285
- Issue date Nov 20, 1990
- Hitachi, Ltd.
- Shigekazu Otomo
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Magnetic head
- Patent number 4,948,667
- Issue date Aug 14, 1990
- Hitachi Maxell, Ltd.
- Hirosuke Mikami
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head having a pair of cores in which the opposing surfaces...
- Patent number 4,941,064
- Issue date Jul 10, 1990
- Hitachi Maxell, Ltd.
- Takeshi Tottori
- G11 - INFORMATION STORAGE
Information Patent Grant
Arrangement for preventing entrance of harmful particles for use in...
- Patent number 4,933,797
- Issue date Jun 12, 1990
- Hitachi Maxell Ltd.
- Hikaru Mizutani
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of the production of a magnetic head
- Patent number 4,928,382
- Issue date May 29, 1990
- Hitachi Maxell, Ltd.
- Hideo Fujiwara
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 4,895,758
- Issue date Jan 23, 1990
- Hitachi Maxell, Ltd.
- Akito Sakemoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head apparatus used for movable magnetic medium with head...
- Patent number 4,870,523
- Issue date Sep 26, 1989
- Hitachi Maxell, Ltd.
- Osamu Inagoya
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head
- Patent number 4,866,555
- Issue date Sep 12, 1989
- Hitachi Maxell, Ltd.
- Osamu Inagoya
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 4,840,844
- Issue date Jun 20, 1989
- Hitachi, Ltd.
- Masaaki Futamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium and process for preparing the same
- Patent number 4,828,919
- Issue date May 9, 1989
- Hitachi, Maxwell, Ltd.
- Osamu Kitakami
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head with a slider
- Patent number 4,814,920
- Issue date Mar 21, 1989
- Hitachi Maxell, Ltd.
- Minoru Yamano
- G11 - INFORMATION STORAGE
Information Patent Grant
Assembly for stably mounting magnetic head on carriage
- Patent number 4,803,578
- Issue date Feb 7, 1989
- Hitachi Maxell, Ltd.
- Hideo Fujiwara
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head having an integrated recording and playback head and...
- Patent number 4,774,616
- Issue date Sep 27, 1988
- Hitachi, Ltd.
- Noriyuki Kumasaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Composite type magnetic head with non-magnetic member in coil mount...
- Patent number 4,745,507
- Issue date May 17, 1988
- Hitachi, Ltd.
- Shigekazu Otomo
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head to effect high density magnetic recording
- Patent number 4,701,819
- Issue date Oct 20, 1987
- Hitachi Maxell, Ltd.
- Osamu Inagoya
- G11 - INFORMATION STORAGE
Information Patent Grant
Composite type magnetic head for recording and reproducing high fre...
- Patent number 4,656,547
- Issue date Apr 7, 1987
- Hitachi, Ltd.
- Noriyuki Kumasaka
- G11 - INFORMATION STORAGE

Hideo Fujiwara

Person

Patents Grantslast 30 patents

Magneto-optical recording medium

Giant magnetoresistive effect sensor, particularly having a multila...

Magneto-optical recording medium

Magnetic recording medium

Magnetic recording medium

Magnetic recording medium comprising an aluminum substrate in which...

Thin soft magnetic film and method of manufacturing the same

Perpendicular magnetic recording medium and method for producing th...

Magnetic recording medium

Soft magnetic materials comprising 9 to 15 atomic percent carbon atoms

Composite magnetic head

Optical data recording medium and manufacturing method thereof

Optical data recording medium

Magnetic recording medium

Amorphous magnetic alloy of Co-Nb-Zr system and magnetic head made...

Magnetic head

Magnetic head having a pair of cores in which the opposing surfaces...

Arrangement for preventing entrance of harmful particles for use in...

Method of the production of a magnetic head

Magnetic recording medium

Magnetic head apparatus used for movable magnetic medium with head...

Magnetic head

Magnetic recording medium

Magnetic recording medium and process for preparing the same

Magnetic head with a slider

Assembly for stably mounting magnetic head on carriage

Magnetic head having an integrated recording and playback head and...

Composite type magnetic head with non-magnetic member in coil mount...

Magnetic head to effect high density magnetic recording

Composite type magnetic head for recording and reproducing high fre...