Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8074344 | Method of manufacturing rotor holder | Satoru Hanaoka, Tomotsugu Sugiyama, Takashi Tsukada | 2011-12-13 |
| 7957551 | Loudspeaker | Michitaka Oda, Takenori Yamakawa, Yasuhiro Nakanishi | 2011-06-07 |