Takahata; Ryoichi
Patent Applications and Registrations
Patent applications and USPTO patent grants for Takahata; Ryoichi.The latest application filed is for "electric motor drive device".
- Takahata; Ryoichi - Tokyo N/A JP
- Takahata; Ryoichi - Hitachi JP
- Takahata; Ryoichi - Kashiba JP
- Takahata; Ryoichi - Yamatotakada JP
- Takahata; Ryoichi - Nara JP
- Takahata; Ryoichi - Osaka JP
| Patent | Date |
|---|---|
| Electric motor drive device Grant 9,325,264 - Iwaji , et al. April 26, 2 | 2016-04-26 |
| Electric Motor Drive Device App 20150155805 - Iwaji; Yoshitaka ; et al. | 2015-06-04 |
| Three-Phase Synchronous Motor Drive Device App 20150069941 - Iwaji; Yoshitaka ; et al. | 2015-03-12 |
| Drive system for synchronous electrical motor Grant 8,884,575 - Takahata , et al. November 11, 2 | 2014-11-11 |
| Synchronous motor drive system and synchronous motor Grant 8,878,480 - Iwaji , et al. November 4, 2 | 2014-11-04 |
| Synchronous electric motor drive system Grant 8,766,575 - Iwaji , et al. July 1, 2 | 2014-07-01 |
| Driving System For Synchronous Motor App 20140077738 - Iwaji; Yoshitaka ; et al. | 2014-03-20 |
| Drive System For Synchronous Electrical Motor App 20130272899 - TAKAHATA; Ryoichi ; et al. | 2013-10-17 |
| Synchronous Electric Motor Drive System App 20130243625 - Iwaji; Yoshitaka ; et al. | 2013-09-19 |
| Synchronous Motor Drive System and Synchronous Motor App 20130057193 - Iwaji; Yoshitaka ; et al. | 2013-03-07 |
| Permanent magnet type electric rotary machine and compressor using the same Grant 7,915,776 - Takahata , et al. March 29, 2 | 2011-03-29 |
| Permanent Magnet Type Electric Rotary Machine And Compressor Using The Same App 20100244609 - Takahata; Ryoichi ; et al. | 2010-09-30 |
| Permanent magnet type electric rotary machine and compressor using the same Grant 7,768,172 - Takahata , et al. August 3, 2 | 2010-08-03 |
| Permanent Magnet Type Electric Rotary Machine And Compressor Using The Same App 20080018190 - TAKAHATA; Ryoichi ; et al. | 2008-01-24 |
| Vehicular alternator Grant 7,057,327 - Kanazawa , et al. June 6, 2 | 2006-06-06 |
| Permanent magnet type rotating electric machine Grant 6,838,798 - Takahata , et al. January 4, 2 | 2005-01-04 |
| Permanent magnet type electric rotating machine Grant 6,759,777 - Takahata , et al. July 6, 2 | 2004-07-06 |
| Permanent magnet type electric rotating machine Grant 6,759,776 - Takahata , et al. July 6, 2 | 2004-07-06 |
| Permanent magnet type rotating electric machine App 20030107291 - Takahata, Ryoichi ; et al. | 2003-06-12 |
| Permanent magnet type rotating electric machine Grant 6,552,461 - Takahata , et al. April 22, 2 | 2003-04-22 |
| Permanent magnet type electric rotating machine App 20030067237 - Takahata, Ryoichi ; et al. | 2003-04-10 |
| Permanent magnet type electric rotating machine App 20030067236 - Takahata, Ryoichi ; et al. | 2003-04-10 |
| Linear motor Grant 6,541,880 - Okada , et al. April 1, 2 | 2003-04-01 |
| Permanent magnet type rotating electrical machine App 20020175584 - Koharagi, Haruo ; et al. | 2002-11-28 |
| Permanent magnet type rotating electrical machine and air conditioner using it App 20020175583 - Kikuchi, Satoshi ; et al. | 2002-11-28 |
| Rotor and rotating electrical machine with embedded permanent magnet App 20020171309 - Wakui, Shinichi ; et al. | 2002-11-21 |
| Permanent magnet type rotating electric machine App 20020130574 - Takahata, Ryoichi ; et al. | 2002-09-19 |
| Vehicular alternator App 20020117934 - Kanazawa, Hiroshi ; et al. | 2002-08-29 |
| Motor-driven beauty device App 20020055695 - Takahata, Ryoichi ; et al. | 2002-05-09 |
| Linear motor App 20020050743 - Okada, Takashi ; et al. | 2002-05-02 |
| Superconducting bearing device Grant 5,763,971 - Takahata , et al. June 9, 1 | 1998-06-09 |
| Superconducting bearing device Grant 5,739,606 - Takahata , et al. April 14, 1 | 1998-04-14 |
| Method for setting up a superconducting bearing device Grant 5,633,548 - Takahata , et al. May 27, 1 | 1997-05-27 |
| Superconducting bearing device Grant 5,446,018 - Takahata , et al. August 29, 1 | 1995-08-29 |
| Superconducting bearing device stabilized by trapped flux Grant 5,330,967 - Takahata , et al. July 19, 1 | 1994-07-19 |
| Bearing device Grant 5,314,868 - Takahata , et al. May 24, 1 | 1994-05-24 |
| Apparatus and method for measuring repulsive displacement and repulsive force characteristics of a superconductor with respect to a magnet Grant 5,111,140 - Takahata May 5, 1 | 1992-05-05 |
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