Hirotake Hamamatsu

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Kariya-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing soft magnetic powdered core
- Patent number 8,062,583
- Issue date Nov 22, 2011
- Hitachi Powdered Metals Co., Ltd.
- Chio Ishihara
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Method for producing soft magnetic powdered core
- Patent number 8,029,626
- Issue date Oct 4, 2011
- Hitachi Powered Metals Co., Ltd.
- Chio Ishihara
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Brush, commutator, and commutator device
- Patent number 7,586,230
- Issue date Sep 8, 2009
- DENSO CORPORATION
- Hirotake Hamamatsu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
IRON BASE SINTERED ALLOY AND METHOD FOR MANUFACTURING THE SAME
- Publication number 20180250750
- Publication date Sep 6, 2018
- DENSO CORPORATION
- Ken MATSUBARA
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Method for producing soft magnetic powered core
- Publication number 20080230737
- Publication date Sep 25, 2008
- HITACHI POWERED METALS CO., LTD.
- Chio Ishihara
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Method for producing soft magnetic powdered core
- Publication number 20080232995
- Publication date Sep 25, 2008
- Hitachi Powdered Metals Co., Ltd.
- Chio Ishihara
- B22 - CASTING POWDER METALLURGY
Information Patent Application
Brush, commutator, and commutator device
- Publication number 20060131983
- Publication date Jun 22, 2006
- DENSO CORPORATION
- Hirotake Hamamatsu
- H01 - BASIC ELECTRIC ELEMENTS