Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7877857 | Manufacturing method of electric motor | Toshiyuki Osawa, Ryohei Kageyama, Kengo Ozawa | 2011-02-01 |
| 7856703 | Method for making a short-circuiting member and method for making a commutator | Ryohei Kageyama, Toshiyuki Osawa, Yuichi Terada | 2010-12-28 |
| 7414344 | Commutator and an armature | Ryohei Kageyama, Toshiyuki Osawa, Yuichi Terada, Toshihiro Tanino, Yoshiki Nakano | 2008-08-19 |
| 7414345 | Commutator and armature | Ryohei Kageyama, Toshiyuki Osawa | 2008-08-19 |
| 7084546 | Commutator, manufacturing method of commutator, manufacturing apparatus of commutator and commutator plate material | Ryohei Kageyama, Toshiyuki Ohsawa | 2006-08-01 |
| 6489703 | Commutator forming plate, commutator, motor with commutator and manufacturing the same | Yuuichi Terada, Kazunobu Kanno | 2002-12-03 |