Yoshiaki Katsuyama

Person

Muro, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Process for the production of magnetic head sliders
- Patent number 5,302,560
- Issue date Apr 12, 1994
- Sumitomo Special Metals Co., Ltd.
- Toshiaki Wada
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Grooved magnetic substrates and method for producing the same
- Patent number 4,875,987
- Issue date Oct 24, 1989
- Sumitomo Special Metals, Co., Ltd.
- Toshiaki Wada
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head sliders, materials therefor, and the process for the...
- Patent number 4,859,638
- Issue date Aug 22, 1989
- Sumitomo Special Metals Co., Ltd.
- Toshiaki Wada
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Magnetic recording disc and process for producing the same
- Patent number 4,808,455
- Issue date Feb 28, 1989
- Sumitomo Special Metals Co., Ltd.
- Toshiaki Wada
- G11 - INFORMATION STORAGE
Information Patent Grant
Grooved magnetic substrates and method for producing the same
- Patent number 4,777,074
- Issue date Oct 11, 1988
- Sumitomo Special Metals Co., Ltd.
- Toshiaki Wada
- G11 - INFORMATION STORAGE
Information Patent Grant
Recording disk substrate members and process for producing same
- Patent number 4,690,846
- Issue date Sep 1, 1987
- Sumitomo Special Metals Co., Ltd.
- Toshiaki Wada
- G11 - INFORMATION STORAGE
Information Patent Grant
Substrate members for recording disks and process for producing same
- Patent number 4,659,606
- Issue date Apr 21, 1987
- Sumitomo Special Metals Co., Ltd.
- Toshiaki Wada
- G11 - INFORMATION STORAGE
Information Patent Grant
Composite substrate for a thin-film magnetic head
- Patent number 4,608,293
- Issue date Aug 26, 1986
- Sumitomo Special Metal Co., Ltd.
- Toshiaki Wada
- G11 - INFORMATION STORAGE

Yoshiaki Katsuyama

Person

Patents Grantslast 30 patents

Process for the production of magnetic head sliders

Grooved magnetic substrates and method for producing the same

Magnetic head sliders, materials therefor, and the process for the...

Magnetic recording disc and process for producing the same

Grooved magnetic substrates and method for producing the same

Recording disk substrate members and process for producing same

Substrate members for recording disks and process for producing same

Composite substrate for a thin-film magnetic head