Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12261485 | Rotor with permanent magnets having different coercive forces | Yoshitaka Okuyama, Masaki Hirano, Shoujirou NAKA, Shunsuke Shimizu, Akio Yamagiwa | 2025-03-25 |
| 10686351 | Rotor manufacturing method and rotor | Yoshitaka Okuyama, Yoshinari Asano | 2020-06-16 |
| 10566859 | Rotor | Yoshinari Asano, Masaki Hirano | 2020-02-18 |
| 10122231 | Rotor and rotary electric machine | Nobuyuki Kifuji, Yoshinari Asano, Yasuhiko Ohsawa | 2018-11-06 |
| 9712006 | Rotor and rotary electric machine using the same | Toshinari Kondou, Akio Yamagiwa | 2017-07-18 |
| 9438090 | Method of assembling a rotary electric machine | Toshinari Kondou, Akio Yamagiwa | 2016-09-06 |
| 8952583 | Bus ring, and fixing structure thereof | Hideki Fujii | 2015-02-10 |
| 8853909 | Motor and its rotor and magnetic core for rotor having arrangement of non-magnetic portions | Keiji Aota, Akio Yamagiwa | 2014-10-07 |
| 8569924 | Rotating electric machine and compressor | Akio Yamagiwa | 2013-10-29 |
| 6853057 | Lead frame for a plastic encapsulated semiconductor device | Hideya Takakura | 2005-02-08 |
| 6784513 | Semiconductor light receiving device and electronic apparatus incorporating the same | Motonari Aki | 2004-08-31 |
| 6759667 | Photocoupling device and method of manufacturing the same | — | 2004-07-06 |