Shin Koizumi

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Atsugi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Iron-based sintered powder metal body, manufacturing method thereof...
- Patent number 6,696,014
- Issue date Feb 24, 2004
- JFE Steel Corporation
- Naomichi Nakamura
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Iron-based sintered powder metal body, manufacturing method thereof...
- Patent number 6,514,307
- Issue date Feb 4, 2003
- Kawasaki Steel Corporation
- Naomichi Nakamura
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method of forging raw material for sintering and forging
- Patent number 6,454,991
- Issue date Sep 24, 2002
- Unisa Jecs Corporation
- Takashi Yoshimura
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Method of producing valve lifter
- Patent number 5,918,367
- Issue date Jul 6, 1999
- Unisia Jecs Corporation
- Tamotsu Todo
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Valve lifter of valve mechanism for internal combustion engine
- Patent number 5,400,749
- Issue date Mar 28, 1995
- Unisia Jecs Corporation
- Shin Koizumi
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES

Patents Applicationslast 30 patents

Information Patent Application
PISTON PIN AND METHOD FOR MANUFACTURING PISTON PIN
- Publication number 20190076913
- Publication date Mar 14, 2019
- Hitachi Automotive Systems, Ltd.
- Yuto HIGASA
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
Production method of high density iron based forged part
- Publication number 20030215349
- Publication date Nov 20, 2003
- HITACHI UNISIA AUTOMOTIVE, LTD.
- Naomichi Nakamura
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Iron-based sintered powder metal body, manufacturing method thereof...
- Publication number 20030143097
- Publication date Jul 31, 2003
- Kawasaki Steel Corporation
- Naomichi Nakamura
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Method of forging raw material for sintering and forging
- Publication number 20020051725
- Publication date May 2, 2002
- UNISIA JECS CORPORATION
- Takashi Yoshimura
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Iron-based sintered powder metal body, manufacturing method thereof...
- Publication number 20020048526
- Publication date Apr 25, 2002
- Kawasaki Steel Corporation
- Naomichi Nakamura
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...