Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5798589 | Brushless motor having lubrication system for upper and lower bearings | Shinichi Ohi, Fuhito Umegaki, Masami Takemasa, Tatsuo Haraguchi, Hiroshi Ohsawa | 1998-08-25 |
| 5781082 | Power supply filter for preventing noise signal from entering power supply circuit | Hideaki Matsuzaki, Hiroshi Ohsawa | 1998-07-14 |
| 5555148 | Overvoltage protection device for capacitor externally connected to power IC | Hideaki Matsuzaki, Hiroshi Osawa | 1996-09-10 |