Masatoshi Hayakawa

Person

Miyagi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Antenna structure including radiating conductor and magnetic materi...
- Patent number 8,410,989
- Issue date Apr 2, 2013
- Sony Corporation
- Masatoshi Hayakawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magnetic head
- Patent number 5,875,081
- Issue date Feb 23, 1999
- Sony Corporation
- Atsushi Suzuki
- G11 - INFORMATION STORAGE
Information Patent Grant
Manufacturing method for magnetic head
- Patent number 5,867,887
- Issue date Feb 9, 1999
- Sony Corporation
- Seiji Kumagai
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head
- Patent number 5,852,536
- Issue date Dec 22, 1998
- Sony Corporation
- Tohru Matsunaga
- G11 - INFORMATION STORAGE
Information Patent Grant
Rotary magnetic head apparatus with circuitry for driving head and...
- Patent number 5,737,154
- Issue date Apr 7, 1998
- Sony Corporation
- Seiji Kumagai
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head
- Patent number 5,585,983
- Issue date Dec 17, 1996
- Sony Corporation
- Yasunari Sugiyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head core arrangement having medium facing surface sides f...
- Patent number 5,515,222
- Issue date May 7, 1996
- Sony Corporation
- Seiji Kumagai
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head
- Patent number 5,475,551
- Issue date Dec 12, 1995
- Sony Corporation
- Junichi Honda
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic reproducing head having a distributed-constant circuit typ...
- Patent number 5,365,391
- Issue date Nov 15, 1994
- Sony Corporation
- Yasunari Sugiyama
- G11 - INFORMATION STORAGE
Information Patent Grant
High-density magnetic recording and reproducing head
- Patent number 5,331,491
- Issue date Jul 19, 1994
- Sony Corporation
- Masatoshi Hayakawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 5,266,418
- Issue date Nov 30, 1993
- Sony Corporation
- Kazuhiko Hayashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Fe-N-based soft magnetic thin films and magnetic heads using such f...
- Patent number 5,182,690
- Issue date Jan 26, 1993
- Sony Corporation
- Kenji Katori
- G11 - INFORMATION STORAGE
Information Patent Grant
Soft magnetic thin films of alloys of FeCoNi or FeCoDy and laminate...
- Patent number 5,057,380
- Issue date Oct 15, 1991
- Sony Corporation
- Kazuhiko Hayashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head with Ru containing soft magnetic alloy in gap
- Patent number 4,953,050
- Issue date Aug 28, 1990
- Sony Corporation
- Tatsuo Kumura
- G11 - INFORMATION STORAGE
Information Patent Grant
Device for producing a high frequency modulation magnetic field use...
- Patent number 4,796,241
- Issue date Jan 3, 1989
- Sony Corporation
- Masatoshi Hayakawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Soft magnetic thin film
- Patent number 4,748,000
- Issue date May 31, 1988
- Sony Corporation
- Kazuhiko Hayashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magnetic composite film
- Patent number 4,707,417
- Issue date Nov 17, 1987
- Sony Corporation
- Masatoshi Hayakawa
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magnetic material having high permeability in the high frequency range
- Patent number 4,640,871
- Issue date Feb 3, 1987
- Sony Corporation
- Kazuhiko Hayashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of manufacturing an amorphous magnetic alloy
- Patent number 4,639,278
- Issue date Jan 27, 1987
- Sony Corporation
- Yoshimi Makino
- C21 - METALLURGY OF IRON
Information Patent Grant
Annealing method for amorphous magnetic alloy
- Patent number 4,475,962
- Issue date Oct 9, 1984
- Sony Corporation
- Masatoshi Hayakawa
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of manufacturing an amorphous magnetic alloy
- Patent number 4,473,415
- Issue date Sep 25, 1984
- Sony Corporation
- Yoshitaka Ochiai
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method of manufacturing amorphous magnetic alloy ribbon and use for...
- Patent number 4,444,602
- Issue date Apr 24, 1984
- Sony Corporation
- Yoshimi Makino
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of manufacturing an amorphous magnetic alloy
- Patent number 4,379,004
- Issue date Apr 5, 1983
- Sony Corporation
- Yoshimi Makino
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of manufacturing a high permeability amorphous magnetic alloy
- Patent number 4,311,539
- Issue date Jan 19, 1982
- Sony Corporation
- Satoru Uedaira
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
Antenna
- Publication number 20070080866
- Publication date Apr 12, 2007
- Masatoshi Hayakawa
- H01 - BASIC ELECTRIC ELEMENTS

Masatoshi Hayakawa

Person

Patents Grantslast 30 patents

Antenna structure including radiating conductor and magnetic materi...

Magnetic head

Manufacturing method for magnetic head

Magnetic head

Rotary magnetic head apparatus with circuitry for driving head and...

Magnetic head

Magnetic head core arrangement having medium facing surface sides f...

Magnetic head

Magnetic reproducing head having a distributed-constant circuit typ...

High-density magnetic recording and reproducing head

Magnetic recording medium

Fe-N-based soft magnetic thin films and magnetic heads using such f...

Soft magnetic thin films of alloys of FeCoNi or FeCoDy and laminate...

Magnetic head with Ru containing soft magnetic alloy in gap

Device for producing a high frequency modulation magnetic field use...

Soft magnetic thin film

Magnetic composite film

Magnetic material having high permeability in the high frequency range

Method of manufacturing an amorphous magnetic alloy

Annealing method for amorphous magnetic alloy

Method of manufacturing an amorphous magnetic alloy

Method of manufacturing amorphous magnetic alloy ribbon and use for...

Method of manufacturing an amorphous magnetic alloy

Method of manufacturing a high permeability amorphous magnetic alloy

Patents Applicationslast 30 patents

Antenna