Sei Kakinuma

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Akita, JP

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Patents Grantslast 30 patents

Information Patent Grant
Semiconductor magnetoresistance device, making method and magnetic...
- Patent number 6,335,675
- Issue date Jan 1, 2002
- TDK Corporation
- Sei Kakinuma
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
BALUN transformer core material, BALUN transformer core and BALUN t...
- Patent number 6,114,940
- Issue date Sep 5, 2000
- TDK Corporation
- Sei Kakinuma
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Core for inductance elements and its production method
- Patent number 5,966,065
- Issue date Oct 12, 1999
- TDK Corporation
- Masahiro Onizuka
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Ferrite magnetic material, and ferrite core
- Patent number 5,906,768
- Issue date May 25, 1999
- TDK Corporation
- Sei Kakinuma
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES