U.S. patent number D557,676 [Application Number D/260,970] was granted by the patent office on 2007-12-18 for conference telephone. This patent grant is currently assigned to Iwatsu Electric Co., Ltd., Nippon Telegraph and Telephone East Corporation, Nippon Telegraph and Telephone West Corporation. Invention is credited to Masanobu Abe, Tsutomu Irishima, Keiichi Nakayama, Hironori Ohata, Yasuhiro Sota, Syohei Suzuki.
United States Patent | D557,676 |
Suzuki , et al. | December 18, 2007 |
Inventors: | Suzuki; Syohei (Tokyo, JP), Sota; Yasuhiro (Tokyo, JP), Abe; Masanobu (Tokyo, JP), Nakayama; Keiichi (Tokyo, JP), Ohata; Hironori (Osaka, JP), Irishima; Tsutomu (Osaka, JP) |
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Assignee: | Iwatsu Electric Co., Ltd.
(Tokyo, JP) Nippon Telegraph and Telephone East Corporation (Tokyo, JP) Nippon Telegraph and Telephone West Corporation (Tokyo, JP) |
Appl. No.: | D/260,970 |
Filed: | June 5, 2006 |
Dec 16, 2005 [JP] | P2005-037102 | |||
Current U.S. Class: | D14/149; D14/225 |
Current International Class: | 1403 |
Field of Search: | ;D14/137,149-151,225,240,243,248 ;379/388.01-390.1,387.01,447 ;381/16 ;455/550.1-90.3 |
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