Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11936244 | Rotor, motor, and compressor | Akinobu Ishizaki, Hisato SUMITOMO, Takanori Hori | 2024-03-19 |
| 10164489 | Rotary electric machine including a cylindrical member to provide improved attachment between a rotor core and a drive shaft with a tapered surface fitted to the cylindrical member | Hideki Fujii, Masaki Hirano | 2018-12-25 |
| 8373324 | Field element core | — | 2013-02-12 |
| 7863793 | Field element core | — | 2011-01-04 |
| 7786641 | Magnetic member, rotor and motor | — | 2010-08-31 |
| 7777382 | Motor | Keiji Aota, Akio Yamagiwa | 2010-08-17 |
| 7579733 | Motor | Keiji Aota, Akio Yamagiwa | 2009-08-25 |
| 7119507 | Brushless DC motor and brushless DC motor controller | — | 2006-10-10 |
| 5739650 | Motor system capable of obtaining high efficiency and method for controlling a motor | Taizou Kimura, Hiroyuki Yamai, Akio Yamagiwa, Kazunobu Ooyama, Nobuki Kitano | 1998-04-14 |