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Toshihiro Ohtani
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Kanagawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Method and apparatus for diagnosing damages of conductive materials
Patent number
6,839,640
Issue date
Jan 4, 2005
Ebara Corporation
Toshihiro Ohtani
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Electromagnetic acoustic transducer EMAT and inspection system with...
Patent number
6,109,108
Issue date
Aug 29, 2000
Ebara Corporation
Toshihiro Ohtani
B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information
Patent Grant
Focal type electromagnetic acoustic transducer and flaw detection s...
Patent number
6,038,925
Issue date
Mar 21, 2000
Ebara Corporation
Toshihiro Ohtani
B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information
Patent Grant
Electromagnetic acoustic transducer EMAT and inspection system with...
Patent number
5,811,682
Issue date
Sep 22, 1998
Ebara Corporation
Toshihiro Ohtani
B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information
Patent Grant
Gas dynamic bearing for spindle motor
Patent number
4,998,033
Issue date
Mar 5, 1991
Ebara Corporation
Yasushi Hisabe
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Patent Grant
Rotation supporting device of a polygon mirror
Patent number
4,984,881
Issue date
Jan 15, 1991
Ebara Corporation
Noriyuki Osada
G02 - OPTICS
Patents Applications
last 30 patents
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Patent Application
Method and apparatus for diagnosing damages of conductive materials
Publication number
20030167137
Publication date
Sep 4, 2003
Toshihiro Ohtani
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...