Hironobu Ishikawa

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Nagoya-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Heating member, electrostatic chuck, and ceramic heater
- Patent number 10,347,521
- Issue date Jul 9, 2019
- NGK Spark Plug Co., Ltd.
- Hironobu Ishikawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Ceramic dynamic-pressure bearing and hard disk drive using the same
- Patent number 7,215,508
- Issue date May 8, 2007
- NGK Spark Plug Co., Ltd.
- Hironobu Ishikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Ceramic dynamic-pressure bearing, motor having bearing, hard disk d...
- Patent number 6,702,466
- Issue date Mar 9, 2004
- NGK Spark Plug Co., Ltd.
- Hironobu Ishikawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Ceramic dynamic pressure bearing, motor with bearing, hard disk dev...
- Patent number 6,659,647
- Issue date Dec 9, 2003
- NGK Spark Plug Co., Ltd.
- Atsutoshi Sugiyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Ceramic dynamic pressure bearing, motor with bearing, hard disc app...
- Patent number 6,619,848
- Issue date Sep 16, 2003
- NGK Spark Plug Co., Ltd.
- Hironobu Ishikawa
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Ceramic dynamic-pressure bearing, motor having bearing, hard disk d...
- Patent number 6,619,847
- Issue date Sep 16, 2003
- NGK Spark Plug Co., Ltd.
- Hironobu Ishikawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
HEATING MEMBER, ELECTROSTATIC CHUCK, AND CERAMIC HEATER
- Publication number 20170110357
- Publication date Apr 20, 2017
- NGK SPARK PLUG CO., LTD.
- Hironobu ISHIKAWA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Ceramic dynamic-pressure bearing and hard disk drive using the same
- Publication number 20030053250
- Publication date Mar 20, 2003
- NGK SPARK PLUG CO., LTD.
- Hironobu Ishikawa
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Ceramic dynamic-pressure bearing, motor having bearing, hard disk d...
- Publication number 20020186903
- Publication date Dec 12, 2002
- NGK SPARK PLUG CO., LTD.
- Hironobu Ishikawa
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Ceramic dynamic pressure bearing, motor with bearing, hard disc app...
- Publication number 20020159659
- Publication date Oct 31, 2002
- NGK SPARK PLUG CO., LTD.
- Hironobu Ishikawa
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Ceramic dynamic pressure bearing, motor with bearing, hard disk dev...
- Publication number 20020154840
- Publication date Oct 24, 2002
- NGK SPARK PLUG CO., LTD.
- Atsutoshi Sugiyama
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES