Okuyama; Toshiaki
Patent Applications and Registrations
Patent applications and USPTO patent grants for Okuyama; Toshiaki.The latest application filed is for "induction motor controller".
Company Profile
0.41.17
- Okuyama; Toshiaki - Tokai JP
- Okuyama; Toshiaki - Tokai-mura JP
- Okuyama; Toshiaki - Naka-gun JP
- Okuyama; Toshiaki - Naka JP
- Okuyama; Toshiaki - Tokyo JP
- Okuyama; Toshiaki - Mihara JP
- Okuyama; Toshiaki - Ibaraki JP
- Okuyama; Toshiaki - Hitachi JP
Patent Activity
| Patent | Date |
|---|---|
| Electric power converter suppressing output voltage variation due to input voltage fluctuation Grant 7,869,232 - Nagata , et al. January 11, 2 | 2011-01-11 |
| Induction motor controller Grant 7,671,558 - Yamamoto , et al. March 2, 2 | 2010-03-02 |
| Driver for induction motor and method of driving the same Grant 7,545,116 - Nagata , et al. June 9, 2 | 2009-06-09 |
| Induction Motor Controller App 20080169783 - YAMAMOTO; KOUKI ; et al. | 2008-07-17 |
| Electric Power Converter Apparatus App 20080088291 - Nagata; Koichiro ; et al. | 2008-04-17 |
| Driving apparatus for a motor Grant 7,332,888 - Nagata , et al. February 19, 2 | 2008-02-19 |
| Driver For Induction Motor And Method Of Driving The Same App 20070210741 - Nagata; Koichiro ; et al. | 2007-09-13 |
| Driving apparatus for a motor App 20060192521 - Nagata; Koichiro ; et al. | 2006-08-31 |
| Inverter apparatus Grant 6,844,700 - Sakai , et al. January 18, 2 | 2005-01-18 |
| Machine tool Grant 6,841,911 - Kim , et al. January 11, 2 | 2005-01-11 |
| Inverter apparatus Grant 6,741,063 - Sakai , et al. May 25, 2 | 2004-05-25 |
| PWM inverter with long carrier wave insertion Grant 6,704,212 - Furukawa , et al. March 9, 2 | 2004-03-09 |
| Inverter apparatus App 20040008005 - Sakai, Keijiro ; et al. | 2004-01-15 |
| Apparatus for controlling an induction motor Grant 6,670,786 - Tobari , et al. December 30, 2 | 2003-12-30 |
| Pulse width modulation method, pulse width modulator and power converter Grant 6,657,412 - Ishida , et al. December 2, 2 | 2003-12-02 |
| Controller of AC machine Grant 6,646,896 - Akita , et al. November 11, 2 | 2003-11-11 |
| Control apparatus for power converter Grant 6,642,689 - Ishida , et al. November 4, 2 | 2003-11-04 |
| DC apparatus and vehicle using the same Grant 6,633,495 - Ishda , et al. October 14, 2 | 2003-10-14 |
| Method for calculating inertia moment and driver for electric motor Grant 6,611,125 - Nagata , et al. August 26, 2 | 2003-08-26 |
| Method for modulating pulse width, power converter, and inverter App 20030142517 - Furukawa, Teiichi ; et al. | 2003-07-31 |
| DC apparatus and vehicle using the same App 20030043609 - Ishida, Seiji ; et al. | 2003-03-06 |
| A Method For Controlling A Vehicle Provided With An Electronic Power Converter App 20030043605 - Ishida, Seiji ; et al. | 2003-03-06 |
| Controller of AC machine App 20030043610 - Akita, Yoshitoshi ; et al. | 2003-03-06 |
| Inverter apparatus App 20030020432 - Sakai, Keijiro ; et al. | 2003-01-30 |
| PWM converter system App 20020154526 - Sakai, Keijirou ; et al. | 2002-10-24 |
| Control apparatus for power converter App 20020141212 - Ishida, Seiji ; et al. | 2002-10-03 |
| Machine tool App 20020117922 - Kim, Houng Joong ; et al. | 2002-08-29 |
| Method for calculating inertia moment and driver for electric motor App 20020097018 - Nagata, Koichiro ; et al. | 2002-07-25 |
| Pulse width modulation method, pulse width modulator and power converter App 20020093391 - Ishida, Seiji ; et al. | 2002-07-18 |
| Apparatus for controlling an induction motor App 20020060549 - Tobari, Kazuaki ; et al. | 2002-05-23 |
| Inverter device App 20010043481 - Sakai, Keijiro ; et al. | 2001-11-22 |
| Method of inverter control and apparatus of the same Grant 6,229,719 - Sakai , et al. May 8, 2 | 2001-05-08 |
| Method of charging a plurality of lithium ion rechargeable batteries Grant 5,808,442 - Kaite , et al. September 15, 1 | 1998-09-15 |
| Electric vehicle control system Grant 5,414,339 - Masaki , et al. May 9, 1 | 1995-05-09 |
| Control apparatus and control method for motor drive vehicle Grant 5,355,749 - Obara , et al. October 18, 1 | 1994-10-18 |
| Method and apparatus for operating a variable speed power generation system Grant 5,029,288 - Kubota , et al. July 2, 1 | 1991-07-02 |
| Parallel multi-inverter system and motor drive system using the same Grant 5,016,158 - Matsui , et al. May 14, 1 | 1991-05-14 |
| Motor-driven power steering apparatus Grant 4,960,178 - Abukawa , et al. October 2, 1 | 1990-10-02 |
| Electric power steering control system Grant 4,875,539 - Abukawa , et al. October 24, 1 | 1989-10-24 |
| Vector control system for induction motors Grant 4,808,903 - Matsui , et al. February 28, 1 | 1989-02-28 |
| Control apparatus for an inverter with self-adjustment function of control constants Grant 4,792,742 - Fujimoto , et al. December 20, 1 | 1988-12-20 |
| Method and apparatus for controlling circulating-current type cycloconverter Grant 4,764,859 - Matsui , et al. August 16, 1 | 1988-08-16 |
| Method of controlling inverter-driven induction motor Grant 4,680,526 - Okuyama , et al. July 14, 1 | 1987-07-14 |
| Method and apparatus for controlling PWM inverter Grant 4,629,959 - Okuyama , et al. December 16, 1 | 1986-12-16 |
| Converter control apparatus and method Grant 4,625,272 - Okuyama , et al. November 25, 1 | 1986-11-25 |
| Variable speed rotary electric machine Grant 4,503,377 - Kitabayashi , et al. March 5, 1 | 1985-03-05 |
| Control method for induction motors Grant 4,503,376 - Okuyama March 5, 1 | 1985-03-05 |
| Method for controlling induction motor and apparatus therefor Grant 4,459,534 - Nagase , et al. July 10, 1 | 1984-07-10 |
| Motor control system Grant 4,344,025 - Okuyama , et al. August 10, 1 | 1982-08-10 |
| Electric control apparatus of induction motor Grant 4,330,741 - Nagase , et al. May 18, 1 | 1982-05-18 |
| Apparatus for controlling ac motor Grant 4,328,454 - Okuyama , et al. May 4, 1 | 1982-05-04 |
| Control apparatus for induction motor Grant 4,277,735 - Okuyama , et al. July 7, 1 | 1981-07-07 |
| Control system for suppressing torque ripple in synchronous motor Grant 4,240,020 - Okuyama , et al. December 16, 1 | 1980-12-16 |
| Harmonic eliminating apparatus Grant 4,206,395 - Okuyama , et al. June 3, 1 | 1980-06-03 |
| Control system for a.c. motors Grant 4,132,931 - Okuyama , et al. January 2, 1 | 1979-01-02 |
| Control apparatus for use in a synchronous machine Grant 4,125,796 - Nagase , et al. November 14, 1 | 1978-11-14 |
| Control system for commutatorless motor Grant 4,088,932 - Okuyama , et al. May 9, 1 | 1978-05-09 |
| Control system for commutatorless motor Grant 4,060,753 - Okuyama , et al. November 29, 1 | 1977-11-29 |
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