Issued Patents All Time
Showing 26–37 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5409515 | Filter apparatus and filter element | Osamu Tanaka, Osamu Inoue, Toshio Kusumi, Shinichi Chaen, Jun Asano +1 more | 1995-04-25 |
| 5234739 | Polytetrafluoroethylene porous film and preparation and use thereof | Shinji Tanaru, Osamu Tanaka, Hirofumi Nishibayashi, Osamu Inoue, Toshio Kusumi | 1993-08-10 |
| 5225131 | Process for producing multilayer polytetrafluoroethylene porous membrane and semisintered polytetrafluoroethylene multilayer structure | Shinji Tamaru, Osamu Tanaka, Hirofumi Nishibayashi, Osamu Inoue | 1993-07-06 |
| 5217666 | Process for producing porous polytetrafluoroethylene film | Shinji Tamaru, Hirofumi Nishibayashi, Osamu Tanaka, Osamu Inoue | 1993-06-08 |
| 5171805 | Modified polytetrafluoroethylene and process for preparing the same | Masayoshi Tatemoto, Yoshihisa Yamamoto, Hirofumi Onogi | 1992-12-15 |
| 5064593 | Process for producing multilayer polytetrafluoroethylene porous membrane | Shinji Tamaru, Osamu Tanaka, Hirofumi Nishibayashi, Osamu Inoue | 1991-11-12 |
| 4933137 | Nuclear fuel assembly with means for retarding detector tube wear | Kazuo Murakami, Kyoichi Yoshigai | 1990-06-12 |
| 4830062 | Porous heat-shrinkable tetrafluoroethylene polymer tube and process for producing the same | Norimasa Honda | 1989-05-16 |
| 4596837 | Semisintered polytetrafluoroethylene article and production thereof | Shoji Kawachi | 1986-06-24 |
| 4451616 | Process for preparation of filter-containing polytetrafluoroethylene fine powder | Shoji Kawachi, Toshinori Kadowaki | 1984-05-29 |
| 4440879 | Process for preparing filler-containing polytetrafluoroethylene fine powder | Shoji Kawachi, Shinichiro Kai | 1984-04-03 |
| RE31341 | Polytetrafluoroethylene fine powder and process for producing the same | Shun Koizumi, Shigeru Ichiba, Tetsuo Shimizu, Chuzo Okuno, Tosinori Kadowaki | 1983-08-09 |