Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11084895 | Modified polytetrafluoroethylene fine powder and uniaxially stretched porous body | Taku Yamanaka, Makoto Ono, Kohei Yasuda, Masahiko Yamada, Yasuhiko Sawada +3 more | 2021-08-10 |
| 10944121 | Polymer electrolyte film | Yuichi Inoue, Kuon Miyazaki, Kentaro Kikuchi, Nobuki Uraoka, Tomohisa Konishi +1 more | 2021-03-09 |
| 10688448 | Porous body, polymer electrolyte membrane, filter material for filter, and filter unit | Taku Yamanaka, Kohei Yasuda, Masahiko Yamada, Nobuki Uraoka, Tomohisa Konishi +3 more | 2020-06-23 |
| 10644339 | Polymer electrolyte membrane | Yuichi Inoue, Kuon Miyazaki, Norihito Tanaka, Kentaro Kikuchi, Nobuki Uraoka +2 more | 2020-05-05 |
| 10265661 | Mixed powder and material for molding having PTFE as main component, and drawn porous body | Hideyuki Kiyotani, Kunihiko Inui, Taku Yamanaka, Li Bao, Yoshiyuki Shibuya +4 more | 2019-04-23 |
| 10265654 | Filtering medium for air filter, filter pack, air filter unit, and method for producing filtering medium for air filter | Yoshiyuki Shibuya, Hideyuki Kiyotani, Kunihiko Inui, Li Bao, Seigo Yamamoto +2 more | 2019-04-23 |
| 9707504 | Composition having PTFE as main component, mixed powder, material for molding, filtering medium for filter, air filter unit, and a method for manufacturing a porous membrane | Hideyuki Kiyotani, Kunihiko Inui, Taku Yamanaka, Li Bao, Yoshiyuki Shibuya +4 more | 2017-07-18 |
| 8937132 | Polytetrafluoroethylene mixture | Yasuhiko Sawada, Shunji Kasai, Taku Yamanaka, Yoshiyuki Shibuya, Kunihiko Inui | 2015-01-20 |
| 8865839 | Polytetrafluoroethylene mixture | Yasuhiko Sawada, Shunji Kasai, Taku Yamanaka, Makoto Ono, Yoshiyuki Shibuya +1 more | 2014-10-21 |
| 6355135 | Method of laminating gas permeable sheet material | Osamu Inoue, Toshio Kusumi, Jun Asano, Katsutoshi Yamamoto, Osamu Tanaka +1 more | 2002-03-12 |
| 6336948 | Fire-retardant filter medium and air filter unit | Osamu Inoue, Nobuki Uraoka, Toshio Kusumi, Jun Asano, Seiichi Hirano +1 more | 2002-01-08 |
| 5998022 | Polytetrafluoroethylene cotton-like materials | Shinji Tamaru, Katsutoshi Yamamoto, Jun Asano | 1999-12-07 |
| 5834528 | Polytetrafluoroethylene porous composite film | Osamu Tanaka, Katsutoshi Yamamoto, Osamu Inoue, Toshio Kusumi, Jun Asano +1 more | 1998-11-10 |
| 5807633 | Polytetrafluoroethylene composite fiber, cotton-like materials obtained therefrom and processes for production thereof | Shinji Tamaru, Katsutoshi Yamamoto, Jun Asano | 1998-09-15 |
| 5772884 | Porous polytetrafluoroethylene film and process for preparation thereof | Osamu Tanaka, Toshio Kusumi, Jun Asano, Katsutoshi Yamamoto, Osamu Inoue +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, Jun Asano +1 more | 1996-10-08 |
| D366106 | Air filter | Katsutoshi Yamamoto, Osamu Tanaka, Osamu Inoue, Toshio Kusumi, Jun Asano +1 more | 1996-01-09 |
| 5409515 | Filter apparatus and filter element | Katsutoshi Yamamoto, Osamu Tanaka, Osamu Inoue, Toshio Kusumi, Jun Asano +1 more | 1995-04-25 |