KUMAGAI; Naoki
Patent Applications and Registrations
Patent applications and USPTO patent grants for KUMAGAI; Naoki.The latest application filed is for "silicon carbide semiconductor device".
Company Profile
0.31.25
- KUMAGAI; Naoki - Matsumoto-city JP
- Kumagai; Naoki - Matsumoto JP
- Kumagai; Naoki - Nagano JP
- Kumagai; Naoki - Tokyo JP
- Kumagai; Naoki - Hino-shi JP
- Kumagai, Naoki - Hitachi JP
- Kumagai; Naoki - Kawasaki JP
- Kumagai; Naoki - Kanagawa JP
- Kumagai; Naoki - Yokosuka JP
- Kumagai; Naoki - Yokohama JA
Patent Activity
| Patent | Date |
|---|---|
| Silicon Carbide Semiconductor Device App 20210296435 - KUMAGAI; Naoki | 2021-09-23 |
| Semiconductor device Grant 10,770,582 - Kobayashi , et al. Sep | 2020-09-08 |
| Semiconductor device Grant 10,770,581 - Kobayashi , et al. Sep | 2020-09-08 |
| Semiconductor Device App 20200083369 - Kobayashi; Yusuke ; et al. | 2020-03-12 |
| Semiconductor Device App 20200083368 - KOBAYASHI; Yusuke ; et al. | 2020-03-12 |
| Semiconductor device Grant 10,522,672 - Kumagai Dec | 2019-12-31 |
| Pulse current application circuit and control method thereof Grant 10,451,665 - Kumagai Oc | 2019-10-22 |
| Semiconductor Device App 20190081170 - KUMAGAI; Naoki | 2019-03-14 |
| Silicon carbide semiconductor device and method of manufacturing silicon carbide semiconductor device Grant 10,147,797 - Fujimoto , et al. De | 2018-12-04 |
| Pulse Current Application Circuit And Control Method Thereof App 20180340972 - KUMAGAI; Naoki | 2018-11-29 |
| Silicon carbide semiconductor device and method of manufacturing silicon carbide semiconductor device Grant 10,096,680 - Kumagai , et al. October 9, 2 | 2018-10-09 |
| Semiconductor device and method of manufacturing semiconductor device Grant 9,825,025 - Kumagai November 21, 2 | 2017-11-21 |
| Semiconductor Device And Method Of Manufacturing Semiconductor Device App 20170271324 - KUMAGAI; Naoki | 2017-09-21 |
| Wide band gap semiconductor device Grant 9,761,705 - Kumagai September 12, 2 | 2017-09-12 |
| Silicon Carbide Semiconductor Device And Method Of Manufacturing Silicon Carbide Semiconductor Device App 20170236914 - FUJIMOTO; Takumi ; et al. | 2017-08-17 |
| Silicon Carbide Semiconductor Device And Method Of Manufacturing Silicon Carbide Semiconductor Device App 20170194438 - KUMAGAI; Naoki ; et al. | 2017-07-06 |
| Semiconductor device Grant 9,595,608 - Kumagai March 14, 2 | 2017-03-14 |
| Wide Band Gap Semiconductor Device App 20160225894 - KUMAGAI; Naoki | 2016-08-04 |
| Input circuit includes a constant current circuit Grant 9,390,843 - Kumagai July 12, 2 | 2016-07-12 |
| Wide band gap semiconductor device Grant 9,349,855 - Kumagai May 24, 2 | 2016-05-24 |
| Wide bandgap insulated gate semiconductor device Grant 9,318,547 - Kumagai April 19, 2 | 2016-04-19 |
| Wide Bandgap Insulated Gate Semiconductor Device App 20150287777 - KUMAGAI; Naoki | 2015-10-08 |
| Wide bandgap insulated gate semiconductor device Grant 9,093,493 - Kumagai July 28, 2 | 2015-07-28 |
| Semiconductor Device App 20150162432 - KUMAGAI; Naoki | 2015-06-11 |
| Input Circuit App 20150115928 - KUMAGAI; Naoki | 2015-04-30 |
| Wide Bandgap Insulated Gate Semiconductor Device App 20150053999 - KUMAGAI; Naoki | 2015-02-26 |
| Wide Band Gap Semiconductor Device App 20140145209 - KUMAGAI; Naoki | 2014-05-29 |
| Gate drive device Grant 8,217,704 - Kohama , et al. July 10, 2 | 2012-07-10 |
| Gate drive device App 20100289562 - Kohama; Takanori ; et al. | 2010-11-18 |
| Semiconductor device and manufacturing method thereof Grant 7,723,817 - Kanemaru , et al. May 25, 2 | 2010-05-25 |
| Surge voltage protection diode with controlled p-n junction density gradients Grant 7,602,022 - Kumagai , et al. October 13, 2 | 2009-10-13 |
| High power semiconductor device having a schottky barrier diode Grant 7,476,935 - Kumagai , et al. January 13, 2 | 2009-01-13 |
| Semiconductor device and method of manufacturing the same Grant 7,436,024 - Kumagai , et al. October 14, 2 | 2008-10-14 |
| Semiconductor device having a lateral MOSFET and combined IC using the same Grant 7,247,923 - Yoshida , et al. July 24, 2 | 2007-07-24 |
| Semiconductor Device and Manufacturing Method Thereof App 20070029636 - Kanemaru; Hiroshi ; et al. | 2007-02-08 |
| Surge voltage protection diode and method of forming the same App 20060231836 - Kumagai; Naoki ; et al. | 2006-10-19 |
| Semiconductor device and method of manufacturing the same App 20060027863 - Kumagai; Naoki ; et al. | 2006-02-09 |
| Semiconductor device having a lateral MOSFET and combined IC using the same App 20060022265 - Yoshida; Kazuhiko ; et al. | 2006-02-02 |
| Semiconductor device having a lateral MOSFET and combined IC using the same Grant 6,977,425 - Yoshida , et al. December 20, 2 | 2005-12-20 |
| Intelligent power module Grant 6,934,139 - Kumagai , et al. August 23, 2 | 2005-08-23 |
| High power semiconductor device having a schottky barrier diode App 20050145975 - Kumagai, Naoki ; et al. | 2005-07-07 |
| High power semiconductor device having a Schottky barrier diode Grant 6,870,223 - Kumagai , et al. March 22, 2 | 2005-03-22 |
| Semiconductor device and combined IC using the same App 20040026728 - Yoshida, Kazuhiko ; et al. | 2004-02-12 |
| Semiconductor device App 20030127687 - Kumagai, Naoki ; et al. | 2003-07-10 |
| Dry Radioactive Substance Storage Facility App 20020196890 - Shimizu, Masashi ; et al. | 2002-12-26 |
| Intelligent power module App 20020039269 - Kumagai, Naoki ; et al. | 2002-04-04 |
| Level shift circuit App 20020014905 - Kumagai, Naoki | 2002-02-07 |
| High voltage integrated circuit, high voltage junction terminating structure, and high voltage MIS transistor Grant 6,124,628 - Fujihira , et al. September 26, 2 | 2000-09-26 |
| Emitter-switched thyristor having a floating ohmic contact Grant 5,925,900 - Amaratunga , et al. July 20, 1 | 1999-07-20 |
| Injection control-type Schottky barrier rectifier Grant 5,430,323 - Yamazaki , et al. July 4, 1 | 1995-07-04 |
| Insulated-gate controlled semiconductor device Grant 5,303,110 - Kumagai April 12, 1 | 1994-04-12 |
| Organic solvent spray dryer device Grant 5,092,959 - Orii , et al. March 3, 1 | 1992-03-03 |
| Semiconductor device with low inductance of wirings connecting individual elements of the device Grant 5,051,808 - Saito , et al. September 24, 1 | 1991-09-24 |
| Apparatus for supplying thin, flat articles Grant 3,967,739 - Kumagai July 6, 1 | 1976-07-06 |
| Apparatus for supplying thin, flat articles Grant 3,955,686 - Kumagai May 11, 1 | 1976-05-11 |
| Apparatus for supplying thin, flat articles Grant 3,900,115 - Kumagai August 19, 1 | 1975-08-19 |
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