Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9982759 | Hydraulic auto-tensioner | Tadahisa Tanaka, Satoshi Kitano | 2018-05-29 |
| 9752662 | Tensioner assembly | Seiji Sato | 2017-09-05 |
| 9581199 | Fulcrum bearing device for pulley arm | Tadahisa Tanaka, Seiji Sato | 2017-02-28 |
| 9388882 | Tensioner assembly | Seiji Sato | 2016-07-12 |
| 5414497 | Powder conveying device | Hiroaki Tsuchiya, Keishi Ohsawa, Yuji Sakemi, Kenichiro Waki, Nobuyuki Ito +1 more | 1995-05-09 |
| 5270484 | Powder conveying device | Hiroaki Tsuchiya, Keishi Ohsawa, Yuji Sakemi, Kenichiro Waki, Nobuyuki Ito +1 more | 1993-12-14 |