Hidekazu Tokushima

Person

Matsudo-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Iron-based sintered alloy for sliding member and production method...
- Patent number 10,150,162
- Issue date Dec 11, 2018
- Hitachi Chemical Company, Ltd.
- Hidekazu Tokushima
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Iron-based sintered sliding member and production method therefor
- Patent number 9,637,811
- Issue date May 2, 2017
- Hitachi Powdered Metals Co., Ltd.
- Daisuke Fukae
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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...
Information Patent Grant
Sliding bearing assembly
- Patent number 9,404,535
- Issue date Aug 2, 2016
- Hitachi Chemical Company, Ltd.
- Hidekazu Tokushima
- C21 - METALLURGY OF IRON
Information Patent Grant
Bearing unit, production method therefor and spindle motor
- Patent number 6,851,859
- Issue date Feb 8, 2005
- Hitachi Powdered Metals Co., Ltd.
- Toshikazu Takehana
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Spindle motor and manufacture thereof
- Patent number 6,822,358
- Issue date Nov 23, 2004
- Hitachi, Ltd.
- Tsutomu Nozaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Spindle motor
- Patent number 6,756,715
- Issue date Jun 29, 2004
- Hitachi Powdered Metals, Co., Ltd.
- Jun Hirose
- G11 - INFORMATION STORAGE
Information Patent Grant
Process for manufacturing sintered slide bearing
- Patent number 6,737,016
- Issue date May 18, 2004
- Hitachi Powdered Metals Co, Ltd.
- Hideo Shikata
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Oil impregnated porous bearing units and motors provided with same
- Patent number 5,834,870
- Issue date Nov 10, 1998
- Hitachi, Ltd.
- Hidekazu Tokushima
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Magnetic fluid bearing unit structure and motor having the same
- Patent number 5,821,655
- Issue date Oct 13, 1998
- Hitachi, Ltd.
- Hidekazu Tokushima
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Bearing unit
- Patent number 5,645,355
- Issue date Jul 8, 1997
- Hitachi, Ltd.
- Hidekazu Tokushima
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
SLIDING BEARING ASSEMBLY
- Publication number 20150240870
- Publication date Aug 27, 2015
- Hitachi Chemical Company, Ltd.
- Hidekazu Tokushima
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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
IRON-BASED SINTERED ALLOY FOR SLIDING MEMBER AND PRODUCTION METHOD...
- Publication number 20140294654
- Publication date Oct 2, 2014
- Hitachi Chemical Company, Ltd.
- Hidekazu TOKUSHIMA
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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...
Information Patent Application
IRON-BASED SINTERED SLIDING MEMBER AND PRODUCTION METHOD THEREFOR
- Publication number 20130084203
- Publication date Apr 4, 2013
- Hitachi Powdered Metals Co., Ltd.
- Daisuke FUKAE
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Production method for sintered fluid dynamic pressure bearing
- Publication number 20080010832
- Publication date Jan 17, 2008
- Hitachi Powdered Metals Co., Ltd.
- Hidekazu Tokushima
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Spindle motor
- Publication number 20040000825
- Publication date Jan 1, 2004
- Jun Hirose
- G11 - INFORMATION STORAGE
Information Patent Application
Bearing unit, production method therefor and spindle motor
- Publication number 20030218397
- Publication date Nov 27, 2003
- Toshikazu Takehana
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Spindle motor and manufacture thereof
- Publication number 20030102742
- Publication date Jun 5, 2003
- Tsutomu Nozaki
- G11 - INFORMATION STORAGE
Information Patent Application
Process for manufacturing sintered slide bearing
- Publication number 20030031579
- Publication date Feb 13, 2003
- Hideo Shikata
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Hidekazu Tokushima

Person

Patents Grantslast 30 patents

Iron-based sintered alloy for sliding member and production method...

Iron-based sintered sliding member and production method therefor

Oil-impregnated sintered bearing and production method therefor

Oil-impregnated sintered bearing and production method therefor

Sliding bearing assembly

Bearing unit, production method therefor and spindle motor

Spindle motor and manufacture thereof

Spindle motor

Process for manufacturing sintered slide bearing

Oil impregnated porous bearing units and motors provided with same

Magnetic fluid bearing unit structure and motor having the same

Bearing unit

Patents Applicationslast 30 patents

SLIDING BEARING ASSEMBLY

OIL-IMPREGNATED SINTERED BEARING AND PRODUCTION METHOD THEREFOR

IRON-BASED SINTERED ALLOY FOR SLIDING MEMBER AND PRODUCTION METHOD...

OIL-IMPREGNATED SINTERED BEARING AND PRODUCTION METHOD THEREFOR

IRON-BASED SINTERED SLIDING MEMBER AND PRODUCTION METHOD THEREFOR

Production method for sintered fluid dynamic pressure bearing

Spindle motor

Bearing unit, production method therefor and spindle motor

Spindle motor and manufacture thereof

Process for manufacturing sintered slide bearing