Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10186937 | Method of manufacturing commutator segments with claws and tilted recesses | Kouji Hyoudou, Ryohei Kageyama | 2019-01-22 |
| 7877857 | Manufacturing method of electric motor | Ryohei Kageyama, Nobuo Kasao, Kengo Ozawa | 2011-02-01 |
| 7856703 | Method for making a short-circuiting member and method for making a commutator | Ryohei Kageyama, Nobuo Kasao, Yuichi Terada | 2010-12-28 |
| 7414344 | Commutator and an armature | Ryohei Kageyama, Nobuo Kasao, Yuichi Terada, Toshihiro Tanino, Yoshiki Nakano | 2008-08-19 |
| 7414345 | Commutator and armature | Ryohei Kageyama, Nobuo Kasao | 2008-08-19 |
| 4603079 | Overcoated sheet | Toshinobu Nishizaki, Shuhei Shiraishi | 1986-07-29 |