Tsurumi; Hiroyuki
Patent Applications and Registrations
Patent applications and USPTO patent grants for Tsurumi; Hiroyuki.The latest application filed is for "power amplifying device and audio system".
- Tsurumi; Hiroyuki - Fujisawa Kanagawa JP
- Tsurumi; Hiroyuki - Fujisawa Kanagawa-Ken JP
- Tsurumi; Hiroyuki - Fujisawa JP
- Tsurumi; Hiroyuki - Fujisawa-Shi Kanagawa-Ken JP
- Tsurumi; Hiroyuki - Kanagawa JP
- Tsurumi; Hiroyuki - Fujisawa-Shi JP
- Tsurumi; Hiroyuki - Yokohama JP
| Patent | Date |
|---|---|
| Power amplifying device and audio system Grant 11,437,958 - Yamauchi , et al. September 6, 2 | 2022-09-06 |
| Power amplifying device and audio equipment Grant 11,171,617 - Yamauchi , et al. November 9, 2 | 2021-11-09 |
| Power Amplifying Device And Audio System App 20210297045 - Yamauchi; Akira ; et al. | 2021-09-23 |
| Power Amplifying Device And Audio Equipment App 20200162040 - Yamauchi; Akira ; et al. | 2020-05-21 |
| Amplifier Grant 9,735,762 - Yasuda , et al. August 15, 2 | 2017-08-15 |
| Current feedback output circuit Grant 9,692,371 - Yamauchi , et al. June 27, 2 | 2017-06-27 |
| Amplifier App 20170149421 - Yasuda; Katsuhiro ; et al. | 2017-05-25 |
| Power amplifying device Grant 9,602,070 - Tsurumi March 21, 2 | 2017-03-21 |
| Power Amplifying Device App 20160276993 - Tsurumi; Hiroyuki | 2016-09-22 |
| Current Feedback Output Circuit App 20150270815 - Yamauchi; Akira ; et al. | 2015-09-24 |
| Current feedback output circuit Grant 9,083,295 - Yamauchi , et al. July 14, 2 | 2015-07-14 |
| Semiconductor device Grant 9,036,312 - Kato , et al. May 19, 2 | 2015-05-19 |
| Power amplifying apparatus and audio system Grant 8,908,886 - Yamauchi , et al. December 9, 2 | 2014-12-09 |
| Current Feedback Output Circuit App 20140167850 - Yamauchi; Akira ; et al. | 2014-06-19 |
| High-side switch circuit Grant 8,604,842 - Sato , et al. December 10, 2 | 2013-12-10 |
| Power amplifying circuit Grant 8,552,799 - Tsurumi October 8, 2 | 2013-10-08 |
| Semiconductor Device App 20130242449 - KATO; Kazuhiro ; et al. | 2013-09-19 |
| Power Amplifying Apparatus And Audio System App 20130195289 - YAMAUCHI; Akira ; et al. | 2013-08-01 |
| High-side Switch Circuit App 20130049813 - Sato; Yuki ; et al. | 2013-02-28 |
| Power Amplifying Circuit App 20130038395 - TSURUMI; Hiroyuki | 2013-02-14 |
| Audio dropout amplifier Grant 8,232,838 - Yasuda , et al. July 31, 2 | 2012-07-31 |
| Push-pull output circuit Grant 8,193,863 - Tsurumi June 5, 2 | 2012-06-05 |
| Integrated circuit device and audio system Grant 8,050,423 - Yamauchi , et al. November 1, 2 | 2011-11-01 |
| Amplifier App 20110193631 - Yasuda; Katsuhiro ; et al. | 2011-08-11 |
| Push-pull Output Circuit App 20110163809 - Tsurumi; Hiroyuki | 2011-07-07 |
| Power amplifier system provided with improved protection function Grant 7,696,827 - Yasuda , et al. April 13, 2 | 2010-04-13 |
| Power amplification device Grant 7,557,660 - Tsurumi July 7, 2 | 2009-07-07 |
| Integrated Circuit Device And Audio System App 20090010454 - Yamauchi; Akira ; et al. | 2009-01-08 |
| Power Amplification Device App 20090002072 - Tsurumi; Hiroyuki | 2009-01-01 |
| Power Amplifier System Provided With Improved Protection Function App 20080315952 - Yasuda; Katsuhiro ; et al. | 2008-12-25 |
| Amplifier circuit of BTL system Grant 7,420,413 - Tsurumi September 2, 2 | 2008-09-02 |
| Power amplifier system provided with improved protection function Grant 7,375,589 - Yasuda , et al. May 20, 2 | 2008-05-20 |
| Amplifier circuit of BTL system App 20070252645 - Tsurumi; Hiroyuki | 2007-11-01 |
| Power amplifier Grant 7,242,250 - Tsurumi July 10, 2 | 2007-07-10 |
| Power Amplifier System Provided With Improved Protection Function App 20070075781 - Yasuda; Katsuhiro ; et al. | 2007-04-05 |
| Power amplifier App 20050218987 - Tsurumi, Hiroyuki | 2005-10-06 |
| High-efficiency power amplifier Grant 6,107,886 - Kusakabe , et al. August 22, 2 | 2000-08-22 |
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