Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8223987 | Attachment structure for a sound generating apparatus | Kiyosei Shibata, Munekazu Yanagida, Yuichi Nakajima, Naoki Fujikawa, Koichi Toyama | 2012-07-17 |
| 8090138 | Audio devices for vehicles | Kouichi Toyama, Akira Nishikawa, Noboru Hidaka, Yuichi Nakajima | 2012-01-03 |
| 7912239 | Flat speaker | Takeshi Nishimura, Masato Sorimachi, Yuuzo Nakajima, Hiroshi Ikeda, Akira Nishikawa +2 more | 2011-03-22 |
| 7907742 | Exciter for directly vibrating board and speaker apparatus used the same | Yuichi Nakajima, Akira Nishikawa, Noboru Hidaka | 2011-03-15 |
| 7443092 | Fluorescent lamp including a multi-ringed bulb | Ichiro Yamada, Naoyuki Toda, Kiyoshi Nishimura, Yusuke Shibahara, Masahiko Yoshida | 2008-10-28 |
| 7285899 | Fluorescent lamp having bent portions and its manufacturing method, and illuminating apparatus including the lamp | Kiyoshi Nishimura, Miho Watanabe, Yusuke Shibahara, Ichiro Yamada, Takashi Yorifuji +4 more | 2007-10-23 |