U.S. patent number D593,995 [Application Number D/309,518] was granted by the patent office on 2009-06-09 for headphone. This patent grant is currently assigned to Sony Corporation. Invention is credited to Yosuke Shimizu.
United States Patent | D593,995 |
Shimizu | June 9, 2009 |
Inventors: | Shimizu; Yosuke (Tokyo, JP) |
---|---|
Assignee: | Sony Corporation (Tokyo,
JP) |
Appl. No.: | D/309,518 |
Filed: | August 26, 2008 |
Current U.S. Class: | D14/205 |
Current International Class: | 1401 |
Field of Search: | ;D14/205,206,223,192,188 ;D29/112 ;2/209 ;181/129,130 ;379/430,431 ;381/309,370,374,378,379,380,381,383 ;455/575.2 |
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