U.S. patent number D634,298 [Application Number D/347,465] was granted by the patent office on 2011-03-15 for headphone. This patent grant is currently assigned to Sony Corporation. Invention is credited to Naoto Shimizu, Asami Yamagishi.
United States Patent | D634,298 |
Shimizu , et al. | March 15, 2011 |
Inventors: | Shimizu; Naoto (Tokyo, JP), Yamagishi; Asami (Tokyo, JP) |
---|---|
Assignee: | Sony Corporation (Tokyo,
JP) |
Appl. No.: | D/347,465 |
Filed: | January 27, 2010 |
Aug 12, 2009 [CN] | 2009 3 0190310 | |||
Current U.S. Class: | D14/205 |
Current International Class: | 1401 |
Field of Search: | ;D14/205,206,223,188,192,248,203.5 ;181/129,130,135 ;379/430,433.11 ;381/380,381,370,376,371,374 ;D29/112 ;2/209 ;455/90.3,575.2 |
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