Hidehiro Ejima

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Hitachi-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Rotor with slot wedges having different dimension to reduce stress
- Patent number 6,774,522
- Issue date Aug 10, 2004
- Hitachi, Ltd.
- Hiroshi Aoyama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electric rotating machine and method of connecting feeding lead wir...
- Patent number 6,681,477
- Issue date Jan 27, 2004
- Hitachi, Ltd.
- Tadashi Shimamoto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Rotary electric machine
- Patent number 6,674,210
- Issue date Jan 6, 2004
- Hitachi, Ltd.
- Hiroshi Aoyama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electric rotating machine and method of connecting feeding lead wir...
- Patent number 6,528,917
- Issue date Mar 4, 2003
- Hitachi, Ltd.
- Tadashi Shimamoto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Rotating electric machine
- Patent number 6,316,859
- Issue date Nov 13, 2001
- Hitachi, Ltd.
- Hiroshi Aoyama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
Rotor in a rotary electric machine
- Publication number 20030155833
- Publication date Aug 21, 2003
- Hitachi, Ltd.
- Hiroshi Aoyama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Electric rotating machine and method of connecting feeding lead wir...
- Publication number 20030132674
- Publication date Jul 17, 2003
- Tadashi Shimamoto
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Rotary electric machine
- Publication number 20030057795
- Publication date Mar 27, 2003
- Hiroshi Aoyama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Electric rotating machine and method of connecting feeding lead wir...
- Publication number 20010052734
- Publication date Dec 20, 2001
- Tadashi Shimamoto
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC