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Hirotada Shimaguchi
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Narashino, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Air-dynamic bearing apparatus and polygon scanner motor
Patent number
6,400,485
Issue date
Jun 4, 2002
Seiko Instruments Inc.
Tsuyoshi Kashiwada
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Spindle motor and rotator device
Patent number
6,040,648
Issue date
Mar 21, 2000
Seiko Instruments Inc.
Naoki Kawawada
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Spindle motor
Patent number
5,821,647
Issue date
Oct 13, 1998
Seiko Seiki Kabushiki Kaisha
Isamu Takehara
G02 - OPTICS
Information
Patent Grant
High speed spindle motor and apparatus equipped with high speed spi...
Patent number
5,804,896
Issue date
Sep 8, 1998
Seiko Seiki Kabushiki Kaisha
Isamu Takehara
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Patents Applications
last 30 patents
Information
Patent Application
Air-dynamic bearing apparatus and polygon scanner motor
Publication number
20010035998
Publication date
Nov 1, 2001
Tsuyoshi Kashiwada
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...