Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8222783 | Vibration motor holding structure and vibration motor | Mikio Umehara, Kazuaki Sato | 2012-07-17 |
| 8137778 | Weight for vibration motor | Masatoshi Kawano, Mikio Umehara | 2012-03-20 |
| 8013486 | Vibration motor holding structure and vibration motor | Mikio Umehara, Kazuaki Sato | 2011-09-06 |
| 7709983 | Vibration motor holding structure and vibration motor | Mikio Umehara, Kazuaki Sato | 2010-05-04 |