Tetsuhito Yoneyama

Person

Chiba, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method for preparing permanent magnet material, chill roll, permane...
- Patent number 5,993,939
- Issue date Nov 30, 1999
- TDK Corporation
- Akira Fukuno
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Preparation of magnet
- Patent number 5,916,376
- Issue date Jun 29, 1999
- TDK Corporation
- Akira Fukuno
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magnet and bonded magnet
- Patent number 5,750,044
- Issue date May 12, 1998
- TDK Corporation
- Tetsuhito Yoneyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for preparing permanent magnet material, chill roll, permane...
- Patent number 5,665,177
- Issue date Sep 9, 1997
- TDK Corporation
- Akira Fukuno
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Permanent magnet material and method for making
- Patent number 5,309,977
- Issue date May 10, 1994
- TDK Corporation
- Tetsuhito Yoneyama
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Magnetic recording medium comprising a magnetic layer containing a...
- Patent number 5,229,219
- Issue date Jul 20, 1993
- TDK Corporation
- Hideharu Moro
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Permanent magnet material and method for making
- Patent number 5,209,789
- Issue date May 11, 1993
- TDK Corporation
- Tetsuhito Yoneyama
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Permanent magnets
- Patent number 5,049,208
- Issue date Sep 17, 1991
- TDK Corporation
- Koichi Yajima
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Permanent magnets
- Patent number 5,022,939
- Issue date Jun 11, 1991
- TDK Corporation
- Koichi Yajima
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Permanent magnet and method of producing same
- Patent number 4,836,868
- Issue date Jun 6, 1989
- TDK Corporation
- Kohichi Yajima
- H01 - BASIC ELECTRIC ELEMENTS

Tetsuhito Yoneyama

Person

Patents Grantslast 30 patents

Method for preparing permanent magnet material, chill roll, permane...

Preparation of magnet

Magnet and bonded magnet

Method for preparing permanent magnet material, chill roll, permane...

Permanent magnet material and method for making

Magnetic recording medium comprising a magnetic layer containing a...

Permanent magnet material and method for making

Permanent magnets

Permanent magnets

Permanent magnet and method of producing same