Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6486628 | Energization control system of a motor | Masanori Sugiyama | 2002-11-26 |
| 6462504 | Energization control device for electric motors | Masanori Sugiyama, Daisuke Yamada, Shinichiroh Iwasaki, Kohki Ohara | 2002-10-08 |
| 6463398 | Rotary speed detector | Masanori Sugiyama, Hiroyuki Matsubara | 2002-10-08 |
| 6380705 | Chopping energization control device | Hiroyuki Inagaki, Masanori Sugiyama, Daisuke Yamada, Yoshihide Suzuki | 2002-04-30 |