Doi; Akihiko
Patent Applications and Registrations
Patent applications and USPTO patent grants for Doi; Akihiko.The latest application filed is for "hfm enable control system".
- Doi; Akihiko - Tokyo JP
- Doi; Akihiko - Osaka JP
- Doi; Akihiko - Toyko JP
| Patent | Date |
|---|---|
| High frequency modulator Grant 8,437,232 - Doi , et al. May 7, 2 | 2013-05-07 |
| Current gain control system Grant 8,134,897 - Doi , et al. March 13, 2 | 2012-03-13 |
| Optical disc apparatus including a divided photodetector Grant 8,068,393 - Doi November 29, 2 | 2011-11-29 |
| Over current protection device Grant 8,009,546 - Li , et al. August 30, 2 | 2011-08-30 |
| HFM enable control system Grant 8,000,200 - Doi , et al. August 16, 2 | 2011-08-16 |
| Optical disk device and control method Grant 7,911,911 - Doi March 22, 2 | 2011-03-22 |
| Current Gain Control System App 20100315919 - Doi; Akihiko ; et al. | 2010-12-16 |
| High Frequency Modulator App 20100315937 - Doi; Akihiko ; et al. | 2010-12-16 |
| Over Current Protection Device App 20100315924 - Li; Shengyuan ; et al. | 2010-12-16 |
| Hfm Enable Control System App 20100315926 - Doi; Akihiko ; et al. | 2010-12-16 |
| Optical disc apparatus Grant 7,706,217 - Doi April 27, 2 | 2010-04-27 |
| Optical Disc Apparatus App 20090296546 - DOI; Akihiko | 2009-12-03 |
| Optical Disk Device And Control Method App 20090245045 - Doi; Akihiko | 2009-10-01 |
| Optical Disk Device And Control Method App 20090245056 - DOI; Akihiko ; et al. | 2009-10-01 |
| Optical Disc Apparatus, Controller Of Optical Disc Apparatus, And Control Method Of Optical Disc Apparatus App 20090003152 - Doi; Akihiko | 2009-01-01 |
| Heat sink, electronic device, and tuner apparatus App 20070177355 - Ito; Akio ; et al. | 2007-08-02 |
| Optical Disc Apparatus App 20070076545 - DOI; Akihiko | 2007-04-05 |
| Optical disc drive and signal processing method Grant 6,714,500 - Doi March 30, 2 | 2004-03-30 |
| Optical disc drive and signal processing method App 20030107966 - Doi, Akihiko | 2003-06-12 |
| Optical disc apparatus having improved read accuracy with non-linear servo signal gain during track access and focus initialization Grant 5,406,536 - Doi April 11, 1 | 1995-04-11 |
| Information recording system capable of preventing overwriting Grant 5,101,396 - Takeuchi , et al. March 31, 1 | 1992-03-31 |
| System for detecting the position of an objective lens Grant 4,900,910 - Doi February 13, 1 | 1990-02-13 |
| Optical focusing in magneto-optic disk system Grant 4,764,912 - Ando , et al. August 16, 1 | 1988-08-16 |
| Optical disk and recording/reproducing device for optical disk Grant 4,755,980 - Yoshimaru , et al. July 5, 1 | 1988-07-05 |
| Optical system and method for reducing vibration of an objective lens in an optical head assembly of an optical read/write system Grant 4,684,797 - Ando , et al. August 4, 1 | 1987-08-04 |
| Optical head Grant 4,641,023 - Ando , et al. February 3, 1 | 1987-02-03 |
uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.
While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.
All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.
| 