Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9049521 | Loudspeaker magnetic circuit and loudspeaker using same | Tetsushi Itano | 2015-06-02 |
| 8744116 | Magnetic circuit for speaker and speaker using same | Tetsushi Itano | 2014-06-03 |
| 7087467 | Lead frame and production process thereof and production process of thermally conductive substrate | Yoshihisa Yamashita, Koichi Hirano, Seiichi Nakatani | 2006-08-08 |
| 6870244 | Lead frame and production process thereof and production process of thermally conductive substrate | Yoshihisa Yamashita, Koichi Hirano, Seiichi Nakatani | 2005-03-22 |
| 6791034 | Circuit board and production method therefor | Kazuo Okada, Koichi Hirano, Takaaki Okawa, Shinya Tanaka | 2004-09-14 |
| 6737153 | Circuit board and method for manufacturing the same, and electronic apparatus comprising it | Fumiaki Hashimoto | 2004-05-18 |
| 6600400 | Electromagnetic electro-acoustic transducer | Kimihiro Andou, Mitsutaka Enomoto, Katsuhiko Minaga, Shuji Saiki, Sawako Usuki | 2003-07-29 |