Hiroki Fujitsuka

Person

Chiba, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Sintered valve guide and production method therefor
- Patent number 9,212,572
- Issue date Dec 15, 2015
- Hitachi Powdered Metals Co., Ltd.
- Hiroki Fujitsuka
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Sintered material for valve guides and production method therefor
- Patent number 8,876,935
- Issue date Nov 4, 2014
- Hitachi Powdered Metals Co., Ltd.
- Hiroki Fujitsuka
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Sintered material for valve guides and production method therefor
- Patent number 8,617,288
- Issue date Dec 31, 2013
- Hitachi Powdered Metals Co., Ltd.
- Hiroki Fujitsuka
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Manufacturing method for wear resistant sintered member, sintered v...
- Patent number 7,892,481
- Issue date Feb 22, 2011
- Hitachi Powdered Metals Co., Ltd.
- Tatsuaki Yoshihiro
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Wear resistant sintered member
- Patent number 7,575,619
- Issue date Aug 18, 2009
- Hitachi Powdered Metals Co., Ltd.
- Hideaki Kawata
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Sintered valve seat and production method therefor
- Patent number 7,572,312
- Issue date Aug 11, 2009
- Hitachi Powdered Metals Co., Ltd.
- Hideaki Kawata
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Wear resistant sintered member
- Patent number 6,562,098
- Issue date May 13, 2003
- Hitachi Powdered Metals Co., Ltd.
- Hiroki Fujitsuka
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
SINTERED MATERIAL FOR VALVE GUIDES AND PRODUCTION METHOD THEREFOR
- Publication number 20120082585
- Publication date Apr 5, 2012
- Hitachi Powdered Metals Co., Ltd.
- Hiroki FUJITSUKA
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
SINTERED MATERIAL FOR VALVE GUIDES AND PRODUCTION METHOD THEREFOR
- Publication number 20120082584
- Publication date Apr 5, 2012
- Hitachi Powdered Metals Co., Ltd.
- Hiroki FUJITSUKA
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
SINTERED VALVE GUIDE AND PRODUCTION METHOD THEREFOR
- Publication number 20110146448
- Publication date Jun 23, 2011
- Hitachi Powdered Metals Co., Ltd.
- Hiroki FUJITSUKA
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Production method for sintered valve guide
- Publication number 20100080725
- Publication date Apr 1, 2010
- Hitachi Powdered Metals Co., Ltd.
- Hiroki Fujitsuka
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Manufacturing method for wear resistant sintered member, sintered v...
- Publication number 20070081914
- Publication date Apr 12, 2007
- Hitachi Powdered Metals Co., Ltd.
- Tatsuaki Yoshihiro
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Sintered valve seat and production method therefor
- Publication number 20060278038
- Publication date Dec 14, 2006
- Hitachi Powdered Metals Co., Ltd.
- Hideaki Kawata
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Wear resistant sintered member and production method therefor
- Publication number 20060219054
- Publication date Oct 5, 2006
- Hitachi Powdered Metals Co., Ltd.
- Hideaki Kawata
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Sintered valve guide and manufacturing method thereof
- Publication number 20060032328
- Publication date Feb 16, 2006
- Katsunao Chikahata
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Hiroki Fujitsuka

Person

Patents Grantslast 30 patents

Sintered valve guide and production method therefor

Sintered material for valve guides and production method therefor

Sintered material for valve guides and production method therefor

Manufacturing method for wear resistant sintered member, sintered v...

Wear resistant sintered member

Sintered valve seat and production method therefor

Wear resistant sintered member

Patents Applicationslast 30 patents

SINTERED MATERIAL FOR VALVE GUIDES AND PRODUCTION METHOD THEREFOR

SINTERED MATERIAL FOR VALVE GUIDES AND PRODUCTION METHOD THEREFOR

SINTERED VALVE GUIDE AND PRODUCTION METHOD THEREFOR

Production method for sintered valve guide

Manufacturing method for wear resistant sintered member, sintered v...

Sintered valve seat and production method therefor

Wear resistant sintered member and production method therefor

Sintered valve guide and manufacturing method thereof