Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8899968 | Combustible gas processing system and combustible gas processing method | Kenji Seki, Masataka Masuda, Hirofumi Ohtsuka, Etsuo Shito | 2014-12-02 |
| 8328913 | Flammable gas concentration system | Etsuo Shito, Kenji Seki | 2012-12-11 |
| 8262771 | Flammable gas concentration device and flammable gas concentration method | Kenji Seki, Etsuo Shito | 2012-09-11 |
| 5893310 | Method and apparatus for cutting a rubber sheet material used to form power transmission belts | Akihiro Nagata, Toshihiro Oonishi, Toshihiro Ueda | 1999-04-13 |