Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1051099 | Electronic device | Naoki Sugiyama, Shinpei Hirano | 2024-11-12 |
| D1001777 | Electronic device | Naoki Sugiyama, Shinpei Hirano | 2023-10-17 |
| D964309 | Electronic device | Naoki Sugiyama, Shinpei Hirano | 2022-09-20 |
| D674379 | Audio visual device | Akio Suzuki, Kazunori Kusuki, Hidefumi Goto, Hirohisa Tanaka, Xiaofeng F. Song +1 more | 2013-01-15 |
| D666171 | Audio visual device | Xiaofeng F. Song, Daisuke Iseki, Qi-Sheng Zheng, Takeshi Miyazaki, Akio Suzuki | 2012-08-28 |
| D631485 | Combined clock and audio player | — | 2011-01-25 |
| D629013 | Audio player | Xiaofeng F. Song | 2010-12-14 |
| D625286 | Audio player | Yosuke Shimizu, Naoki Sugiyama, Naoto Shimizu | 2010-10-12 |
| D602466 | Audio player | Takahiro Naito | 2009-10-20 |
| D601122 | Audio player | Kirio Masui, Yosuke Shimizu, Eiji Shintani | 2009-09-29 |
| D597103 | Disc player | Kai Xiao, Jia Han, Zhongsheng Hong, Keisuke Tejima | 2009-07-28 |
| D547300 | Disc player | — | 2007-07-24 |
| D547298 | Combined disc player, radio receiver and tape player | — | 2007-07-24 |
| D544855 | Speaker box | — | 2007-06-19 |
| D542276 | Speaker box | — | 2007-05-08 |
| D542275 | Speaker box | — | 2007-05-08 |
| D542277 | Speaker box | — | 2007-05-08 |
| D509209 | Combined disc player, radio receiver and tape recorder | — | 2005-09-06 |
| D506990 | Combined disc player and tape recorder | — | 2005-07-05 |
| D441760 | Controller for computer | — | 2001-05-08 |
| D437303 | Disc player | — | 2001-02-06 |
| D435256 | Case for semiconductor element | — | 2000-12-19 |
| D434371 | Battery charger | Teiyu Goto | 2000-11-28 |
| D425033 | Audio or visual data converter | — | 2000-05-16 |
| D421597 | Semiconductor element | Haruo Oba, Yoshio Kondo | 2000-03-14 |