Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7949234 | Motor speed control circuit | Takashi Harashima | 2011-05-24 |
| 7733045 | Motor driving circuit | Tomoyuki Goto, Tetsuya Yoshitomi | 2010-06-08 |
| 7564204 | Motor speed control circuit | Takashi Harashima | 2009-07-21 |
| 7420340 | Motor speed control circuit | Takashi Harashima | 2008-09-02 |
| 7301294 | Motor speed control integrated circuit | Takashi Harashima | 2007-11-27 |
| 6815799 | Semiconductor integrated circuit device | Shigeaki Okawa | 2004-11-09 |
| 6384556 | Motor driving circuit | Masao Mizumoto, Tsutomu Shimazaki | 2002-05-07 |