Kumagai; Yoshiaki
Patent Applications and Registrations
Patent applications and USPTO patent grants for Kumagai; Yoshiaki.The latest application filed is for "power supply method, charging control device, and power supply system".
- Kumagai; Yoshiaki - Tokyo JP
- Kumagai; Yoshiaki - Kanagawa JP
- Kumagai; Yoshiaki - Kawasaki JP
| Patent | Date |
|---|---|
| Head mountable display Grant D745,517 - Kumagai December 15, 2 | 2015-12-15 |
| Power Supply Method, Charging Control Device, And Power Supply System App 20140361734 - Yamazaki; Daisuke ; et al. | 2014-12-11 |
| Head mountable display Grant D695,739 - Kumagai , et al. December 17, 2 | 2013-12-17 |
| Head mountable display Grant D695,738 - Kumagai , et al. December 17, 2 | 2013-12-17 |
| Projector Grant D686,269 - Kumagai July 16, 2 | 2013-07-16 |
| Earphone Grant D675,599 - Kumagai , et al. February 5, 2 | 2013-02-05 |
| Portable recorder Grant D665,768 - Kumagai August 21, 2 | 2012-08-21 |
| Battery charger Grant D665,346 - Kumagai , et al. August 14, 2 | 2012-08-14 |
| Earphone Grant D656,489 - Kumagai , et al. March 27, 2 | 2012-03-27 |
| Fuel Cell Device App 20110300468 - Takabayashi; Hiroshi ; et al. | 2011-12-08 |
| Portable recorder Grant D649,955 - Kumagai December 6, 2 | 2011-12-06 |
| Mobile phone Grant D627,769 - Kumagai November 23, 2 | 2010-11-23 |
| Wireless Communication System App 20100081391 - Suzuki; Yusuke ; et al. | 2010-04-01 |
| Combined disc player, clock and radio receiver Grant D609,691 - Kumagai , et al. February 9, 2 | 2010-02-09 |
| Lighting apparatus Grant 7,597,457 - Shirakura , et al. October 6, 2 | 2009-10-06 |
| Remote controller Grant D597,533 - Kumagai , et al. August 4, 2 | 2009-08-04 |
| Combined disc player, clock and radio receiver Grant D597,520 - Shiono , et al. August 4, 2 | 2009-08-04 |
| Combined disc player, clock and radio receiver Grant D595,687 - Shiono , et al. July 7, 2 | 2009-07-07 |
| Combined disc player, clock and radio receiver Grant D595,688 - Shiono , et al. July 7, 2 | 2009-07-07 |
| Projection type display apparatus Grant 7,336,289 - Ishikawa , et al. February 26, 2 | 2008-02-26 |
| Lighting Apparatus App 20070216980 - Shirakura; Akira ; et al. | 2007-09-20 |
| Combined remote controller and laser pointer Grant D517,023 - Kumagai March 14, 2 | 2006-03-14 |
| Projection type display apparatus App 20050036084 - Ishikawa, Hidenori ; et al. | 2005-02-17 |
| Portable information terminal Grant D496,036 - Kumagai , et al. September 14, 2 | 2004-09-14 |
| Portable information terminal Grant D494,166 - Kumagai , et al. August 10, 2 | 2004-08-10 |
| Portable information terminal Grant D494,167 - Hirakawa , et al. August 10, 2 | 2004-08-10 |
| Radio base station for a CDMA mobile communication system Grant 6,728,264 - Kumagai , et al. April 27, 2 | 2004-04-27 |
| Toy Grant D452,889 - Kawakita , et al. January 8, 2 | 2002-01-08 |
| Speaker box Grant D435,035 - Kumagai , et al. December 12, 2 | 2000-12-12 |
| Toy Grant D431,270 - Kawakita , et al. September 26, 2 | 2000-09-26 |
| Base station transmitter-receiver Grant 6,125,138 - Kumagai September 26, 2 | 2000-09-26 |
| Wideband transceiver Grant 5,963,587 - Kumagai October 5, 1 | 1999-10-05 |
| Combined wireless telephone and keyboard Grant D413,885 - Irimajiri , et al. September 14, 1 | 1999-09-14 |
| Transmission/reception apparatus Grant 5,937,336 - Kumagai August 10, 1 | 1999-08-10 |
| Television receiver Grant D412,166 - Kumagai , et al. July 20, 1 | 1999-07-20 |
| Electrical program guide system and method Grant 5,926,230 - Niijima , et al. July 20, 1 | 1999-07-20 |
| Electrical program guide system and method Grant 5,903,314 - Niijima , et al. May 11, 1 | 1999-05-11 |
| System and method for parent-controlled charging for on-line services Grant 5,845,260 - Nakano , et al. December 1, 1 | 1998-12-01 |
| Automatic gain control circuit with input and output signal detectors operating in equalized conditions Grant 5,768,694 - Kumagai June 16, 1 | 1998-06-16 |
| Transmitter-receiver apparatus Grant 5,754,949 - Kumagai , et al. May 19, 1 | 1998-05-19 |
| Media unit Grant D388,095 - Niijima , et al. December 23, 1 | 1997-12-23 |
| Media unit Grant D385,562 - Niijima , et al. October 28, 1 | 1997-10-28 |
| Headphone Grant D331,059 - Sogabe , et al. November 17, 1 | 1992-11-17 |
| Disc player Grant 4,755,978 - Takizawa , et al. July 5, 1 | 1988-07-05 |
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.
| 