Yamaguchi; Yukimasa
Patent Applications and Registrations
Patent applications and USPTO patent grants for Yamaguchi; Yukimasa.The latest application filed is for "ear speaker device".
- Yamaguchi; Yukimasa - Tokyo N/A JP
| Patent | Date |
|---|---|
| Ear speaker device Grant 8,913,772 - Yamaguchi , et al. December 16, 2 | 2014-12-16 |
| Ear Speaker Device App 20140254855 - YAMAGUCHI; Yukimasa ; et al. | 2014-09-11 |
| Ear speaker device Grant 8,538,059 - Yamagishi , et al. September 17, 2 | 2013-09-17 |
| Ear Speaker Device App 20120177206 - YAMAGISHI; Makoto ; et al. | 2012-07-12 |
| Ear speaker device Grant 8,175,316 - Yamagishi , et al. May 8, 2 | 2012-05-08 |
| Camera Grant 7,671,919 - Iwasaki , et al. March 2, 2 | 2010-03-02 |
| Ear Speaker Device App 20090052716 - YAMAGUCHI; Yukimasa ; et al. | 2009-02-26 |
| Ear speaker device App 20080253604 - Yamagishi; Makoto ; et al. | 2008-10-16 |
| Camera App 20050206780 - Iwasaki, Keiichi ; et al. | 2005-09-22 |
| Microphone and microphone system Grant 5,323,257 - Abe , et al. June 21, 1 | 1994-06-21 |
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