Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9458852 | Centrifugal fan having a flow control member | Seung-Sin Yoo, Tomohiro Hasegawa, Shunji Matsumoto, Kazuo Tanaka, Yuji Katsurayama +2 more | 2016-10-04 |
| 4672253 | Permanent magnet electrical machine with reduced cogging | Fumio Tajima, Hiroshi Katayama, Kunio Miyashita, Teizo Tamura, Kenichi Hironaka +3 more | 1987-06-09 |