Tomomi Yamamoto

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Permanent magnet member for coil motor and voice coil motor
- Patent number 7,859,140
- Issue date Dec 28, 2010
- TDK Corporation
- Takeshi Sakamoto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Permanent magnet member for coil motor and voice coil motor
- Patent number 7,619,329
- Issue date Nov 17, 2009
- TDK Corporation
- Takeshi Sakamoto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method of manufacturing rare-earth magnet, and plating bath
- Patent number 7,473,343
- Issue date Jan 6, 2009
- TDK Corporation
- Takeshi Sakamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
R-T-B system permanent magnet
- Patent number 7,462,403
- Issue date Dec 9, 2008
- TDK Corporation
- Tetsuya Hidaka
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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

Patents Applicationslast 30 patents

Information Patent Application
HARD PARTICLE POWDER FOR SINTERED BODY
- Publication number 20190256955
- Publication date Aug 22, 2019
- DAIDO STEEL CO., LTD.
- Iwane NAGASE
- B22 - CASTING POWDER METALLURGY
Information Patent Application
POWDER FOR SINTERING AND SINTERED BODY
- Publication number 20170274452
- Publication date Sep 28, 2017
- DAIDO STEEL CO., LTD.
- Iwane NAGASE
- C01 - INORGANIC CHEMISTRY
Information Patent Application
Permanent magnet member for coil motor and Voice Coil Motor
- Publication number 20090289508
- Publication date Nov 26, 2009
- TDK Corporation
- Takeshi Sakamoto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
R-t-b system permanent magnet
- Publication number 20070102069
- Publication date May 10, 2007
- Tetsuya Hidaka
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Permanent magnet member for voice coil motor and voice coil motor
- Publication number 20060202564
- Publication date Sep 14, 2006
- Takeshi Sakamoto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Method of manufacturing rare-earth magnet, and plating bath
- Publication number 20040188267
- Publication date Sep 30, 2004
- TDK Corporation
- Takeshi Sakamoto
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR