Naoki NISHIZAWA

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Kashiwa-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Oil-impregnated sintered bearing and production method therefor
- Patent number 9,631,669
- Issue date Apr 25, 2017
- Hitachi Chemical Company, Ltd.
- Naoki Nishizawa
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Oil-impregnated sintered bearing and production method therefor
- Patent number 9,441,286
- Issue date Sep 13, 2016
- Hitachi Powdered Metals Co., Ltd.
- Naoki Nishizawa
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
OIL-IMPREGNATED SINTERED BEARING AND PRODUCTION METHOD THEREFOR
- Publication number 20140314354
- Publication date Oct 23, 2014
- Hitachi Chemical Company, Ltd.
- Naoki NISHIZAWA
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
OIL-IMPREGNATED SINTERED BEARING AND PRODUCTION METHOD THEREFOR
- Publication number 20130101244
- Publication date Apr 25, 2013
- Hitachi Powdered Metals Co., Ltd.
- Naoki NISHIZAWA
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...