Oka; Tomohiro
Patent Applications and Registrations
Patent applications and USPTO patent grants for Oka; Tomohiro.The latest application filed is for "zero cross detection circuit and sensor device".
- Oka; Tomohiro - Chiba JP
- OKA; Tomohiro - Chiba-shi JP
| Patent | Date |
|---|---|
| Zero cross detection circuit and sensor device Grant 10,908,193 - Ariyama , et al. February 2, 2 | 2021-02-02 |
| Zero Cross Detection Circuit And Sensor Device App 20190324066 - ARIYAMA; Minoru ; et al. | 2019-10-24 |
| Switch circuit Grant 9,571,094 - Hiraoka , et al. February 14, 2 | 2017-02-14 |
| Switch Circuit App 20160218710 - Hiraoka; Naohiro ; et al. | 2016-07-28 |
| Semiconductor device Grant 9,274,170 - Oka March 1, 2 | 2016-03-01 |
| Boosting circuit Grant 9,054,683 - Murata , et al. June 9, 2 | 2015-06-09 |
| Semiconductor Device App 20140325300 - OKA; Tomohiro | 2014-10-30 |
| Power-on reset circuit Grant 8,797,070 - Oka August 5, 2 | 2014-08-05 |
| Boosting Circuit App 20130234768 - MURATA; Masaya ; et al. | 2013-09-12 |
| Power-on Reset Circuit App 20130194011 - OKA; Tomohiro | 2013-08-01 |
| Boosting circuit Grant 8,203,378 - Otani , et al. June 19, 2 | 2012-06-19 |
| Memory circuit and voltage detection circuit including the same Grant 8,179,729 - Watanabe , et al. May 15, 2 | 2012-05-15 |
| Voltage switching circuit Grant 7,911,259 - Oka March 22, 2 | 2011-03-22 |
| Memory Circuit And Voltage Detection Circuit Including The Same App 20110032776 - Watanabe; Kotaro ; et al. | 2011-02-10 |
| Semiconductor memory device Grant 7,835,188 - Satou , et al. November 16, 2 | 2010-11-16 |
| Boosting Circuit App 20100214011 - Otani; Ayaka ; et al. | 2010-08-26 |
| Booster circuit App 20100123512 - Imai; Yasushi ; et al. | 2010-05-20 |
| Voltage Switching Circuit App 20100013547 - Oka; Tomohiro | 2010-01-21 |
| Semiconductor Memory Device App 20090190407 - Satou; Yutaka ; et al. | 2009-07-30 |
| Switching power source apparatus App 20070210776 - Oka; Tomohiro | 2007-09-13 |
| Boosting and step-down switching regulator controlling circuit and boosting and step-down switching regulator for use in the same App 20030052654 - Kanakubo, Yoshihide ; et al. | 2003-03-20 |
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