Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6479143 | Heat-meltable fluororesin fibers | Shinji Tamaru, Katsutoshi Yamamoto | 2002-11-12 |
| 6416896 | Material for electrode comprising a non-woven fabric composed of a fluorine-containing resin fiber | Shinji Tamaru, Katsutoshi Yamamoto | 2002-07-09 |
| 6355135 | Method of laminating gas permeable sheet material | Osamu Inoue, Toshio Kusumi, Katsutoshi Yamamoto, Osamu Tanaka, Shinichi Chaen +1 more | 2002-03-12 |
| 6336948 | Fire-retardant filter medium and air filter unit | Osamu Inoue, Shinichi Chaen, Nobuki Uraoka, Toshio Kusumi, Seiichi Hirano +1 more | 2002-01-08 |
| 6235388 | Fibrous materials of fluororesins and deodorant and antibacterial fabrics made by using the same | Katsutoshi Yamamoto, Toshio Kusumi | 2001-05-22 |
| 6156681 | Multi layered felt, member formed of same, and method of manufacturing same | Shinji Tamaru, Katsutoshi Yamamoto | 2000-12-05 |
| 6133165 | Bulky polytetrafluoroethylene filament and split yarn, method of producting thereof, method of producing cotton-like materials by using said filament or split yarn and filter cloth for dust collection | Shinji Tamaru, Katsutoshi Yamamoto | 2000-10-17 |
| 5998022 | Polytetrafluoroethylene cotton-like materials | Shinji Tamaru, Katsutoshi Yamamoto, Shinichi Chaen | 1999-12-07 |
| 5912077 | Cotton-like mixed materials, non-woven fabrics obtained therefrom and process for production thereof | Shinji Tamaru, Katsutoshi Yamamoto | 1999-06-15 |
| 5834528 | Polytetrafluoroethylene porous composite film | Osamu Tanaka, Katsutoshi Yamamoto, Osamu Inoue, Toshio Kusumi, Shinichi Chaen +1 more | 1998-11-10 |
| 5807633 | Polytetrafluoroethylene composite fiber, cotton-like materials obtained therefrom and processes for production thereof | Shinji Tamaru, Katsutoshi Yamamoto, Shinichi Chaen | 1998-09-15 |
| 5772884 | Porous polytetrafluoroethylene film and process for preparation thereof | Osamu Tanaka, Toshio Kusumi, Katsutoshi Yamamoto, Osamu Inoue, Shinichi Chaen +2 more | 1998-06-30 |
| 5562986 | Polytetrafluoroethylene fibers, polytetrafluoroethylene materials and process for preparation of the same | Katsutoshi Yamamoto, Osamu Tanaka, Osamu Inoue, Toshio Kusumi, Shinichi Chaen +1 more | 1996-10-08 |
| D366106 | Air filter | Katsutoshi Yamamoto, Osamu Tanaka, Osamu Inoue, Toshio Kusumi, Shinichi Chaen +1 more | 1996-01-09 |
| 5409515 | Filter apparatus and filter element | Katsutoshi Yamamoto, Osamu Tanaka, Osamu Inoue, Toshio Kusumi, Shinichi Chaen +1 more | 1995-04-25 |