Nagasu; Masahiro
Patent Applications and Registrations
Patent applications and USPTO patent grants for Nagasu; Masahiro.The latest application filed is for "drive device for railway vehicle".
- Nagasu; Masahiro - Hitachinaka JP
- Nagasu; Masahiro - Hitachinaka-shi JP
- Nagasu, Masahiro - Hitachi-shi JP
- Nagasu; Masahiro - Hitachi JP
| Patent | Date |
|---|---|
| Power converter and power converter of rolling stock Grant 8,963,456 - Sugiura , et al. February 24, 2 | 2015-02-24 |
| Drive device for railway vehicle Grant 8,924,051 - Araki , et al. December 30, 2 | 2014-12-30 |
| Drive circuit of semiconductor device Grant 8,471,622 - Ishikawa , et al. June 25, 2 | 2013-06-25 |
| Drive Device For Railway Vehicle App 20130073125 - Araki; Daijiro ; et al. | 2013-03-21 |
| Power Converter And Power Converter Of Rolling Stock App 20120229055 - SUGIURA; Tetsu ; et al. | 2012-09-13 |
| Drive circuit for power semiconductor switching device Grant 7,994,826 - Ishikawa , et al. August 9, 2 | 2011-08-09 |
| Control apparatus of power conversion system Grant 7,965,056 - Terunuma , et al. June 21, 2 | 2011-06-21 |
| Circuit arrangement having a free-wheel diode Grant 7,880,174 - Shimizu , et al. February 1, 2 | 2011-02-01 |
| Drive Circuit Of Semiconductor Device App 20100265746 - ISHIKAWA; Katsumi ; et al. | 2010-10-21 |
| Hybrid cruising control system Grant 7,783,396 - Arita , et al. August 24, 2 | 2010-08-24 |
| Gate drive circuit with reduced switching loss and noise Grant 7,737,761 - Ishikawa , et al. June 15, 2 | 2010-06-15 |
| Information transmission system and information transmission method Grant 7,577,668 - Sato , et al. August 18, 2 | 2009-08-18 |
| Gate driver circuit for switching device Grant 7,570,085 - Ishikawa , et al. August 4, 2 | 2009-08-04 |
| Circuit Device Having A Free Wheeling Diode, Circuit Device And Power Converter Using Diodes App 20090168471 - Tsugawa; Dai ; et al. | 2009-07-02 |
| Control Apparatus Of Power Conversion System App 20080266920 - Terunuma; Mutsuhiro ; et al. | 2008-10-30 |
| Circuit Arrangement Having A Free-wheel Diode App 20080258252 - Shimizu; Haruka ; et al. | 2008-10-23 |
| Hybrid Cruising Control System App 20080183348 - ARITA; Hiroshi ; et al. | 2008-07-31 |
| Gate Drive Circuit App 20080122497 - ISHIKAWA; Katsumi ; et al. | 2008-05-29 |
| Drive Circuit For Power Semiconductor Switching Device App 20070200602 - Ishikawa; Katsumi ; et al. | 2007-08-30 |
| Gate Driver Circuit For Switching Device App 20070200613 - Ishikawa; Katsumi ; et al. | 2007-08-30 |
| Fault detection system Grant 7,046,155 - Sato , et al. May 16, 2 | 2006-05-16 |
| Fault detection system App 20040221217 - Sato, Yutaka ; et al. | 2004-11-04 |
| Fault detection system Grant 6,759,964 - Sato , et al. July 6, 2 | 2004-07-06 |
| Information transmission system and information transmission method App 20040103113 - Sato, Yutaka ; et al. | 2004-05-27 |
| Fault detection system Grant 6,724,313 - Sato , et al. April 20, 2 | 2004-04-20 |
| Semiconductor circuit, method of driving the same and semiconductor device App 20040056702 - Nagasu, Masahiro ; et al. | 2004-03-25 |
| Railway vehicle operation-control system and a railway vehicle using the operation control system Grant 6,600,978 - Nagasu , et al. July 29, 2 | 2003-07-29 |
| Fault detection system App 20030076232 - Sato, Yutaka ; et al. | 2003-04-24 |
| Fault detection system App 20030076233 - Sato, Yutaka ; et al. | 2003-04-24 |
| Railway vehicle operation-control system and a railway vehicle using the operation control system App 20020161490 - Nagasu, Masahiro ; et al. | 2002-10-31 |
| Flat semiconductor device and power converter employing the same App 20020145188 - Kodama, Hironori ; et al. | 2002-10-10 |
| Semiconductor circuit, method of driving the same and semiconductor device App 20020125548 - Nagasu, Masahiro ; et al. | 2002-09-12 |
| Support system and method for recovering a train, and information transmitting system in a train App 20020062182 - Sato, Yutaka ; et al. | 2002-05-23 |
| Electric power converting system with integrator providing output indicative of current Grant 6,304,472 - Nagasu , et al. October 16, 2 | 2001-10-16 |
| Semiconductor power converting apparatus App 20010015670 - Sakai, Hiromitsu ; et al. | 2001-08-23 |
| Gate drive circuit of voltage drive switching element Grant 6,271,709 - Kimura , et al. August 7, 2 | 2001-08-07 |
| Semiconductor power converting apparatus Grant 6,242,968 - Sakai , et al. June 5, 2 | 2001-06-05 |
| Semiconductor circuit and semiconductor device for use in equipment such as a power converting apparatus Grant 6,204,717 - Nagasu , et al. March 20, 2 | 2001-03-20 |
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