Issued Patents All Time
Showing 25 most recent of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11958806 | Production method of maleimide | Yuki Yamada, Tatsuya Morikita, Yosuke Sugimoto, Takeshi Yoshida, Akira Shigeta | 2024-04-16 |
| 11104643 | Bismaleimide modified product and method for producing the same | Yuki Yamada, Tatsuya Morikita, Takeshi Yoshida, Akira Shigeta | 2021-08-31 |
| 10836719 | Production method of maleimide | Yuki Yamada, Tatsuya Morikita, Yosuke Sugimoto, Takeshi Yoshida, Akira Shigeta | 2020-11-17 |
| 10759753 | Bismaleimide modified product and method for producing the same | Yuki Yamada, Tatsuya Morikita, Takeshi Yoshida, Akira Shigeta | 2020-09-01 |
| 8492506 | Polyimide resin composition, polyimide precursor resin composition for the same, production method thereof, and polyimide film and production method thereof | Takeshi Yoshida, Akira Shigeta | 2013-07-23 |
| 7384683 | Substrate for flexible printed wiring board and method for manufacturing the same | Jusirou Eguchi, Akira Shigeta, Makoto Uchida, Shigeru Moteki | 2008-06-10 |
| 6962726 | Method for preparing substrate for flexible print wiring board, and substrate for flexible print wiring board | Akira Shigeta, Takeshi Yoshida, Jun Mori, Ryoichi Hasegawa, Minoru Noji +2 more | 2005-11-08 |
| 6294049 | Polyimide precursor fibrid, polyimide paper, polyimide composite paper and polyimide composite board obtained therefrom, and process for producing the fibrid and the paper products | Isao Tomioka, Takeshi Nakano, Mikio Furukawa, Masato Wada | 2001-09-25 |
| 6235803 | Hollow polymide microspheres | Erik S. Weiser, Terry L. St. Clair, Hisayasu Kaneshiro | 2001-05-22 |
| 6222007 | "Films, preimpregnated tapes and composites made from polyimide ""Salt-like"" Solutions" | Roberto J. Cano, Erik S. Weiser, Terry L. St. Clair, Hisayasu Kaneshiro | 2001-04-24 |
| 6180746 | Polyimide precursor solid residuum | Erik S. Weiser, Terry L. St. Clair, Hisayasu Kaneshiro | 2001-01-30 |
| 6133330 | Aromatic polyimide foam | Erik S. Weiser, Terry L. St. Clair, Hisayasu Kaneshiro | 2000-10-17 |
| 6133407 | Polyimide precursor solution, coating film obtained therefrom, and process for producing polyimide coating film | Hisayasu Kaneshiro, Jushiro Eguchi, Takahiro Ono | 2000-10-17 |
| 6084000 | Hollow polyimide microspheres | Erik S. Weiser, Terry L. St. Clair, Hisayasu Kaneshiro | 2000-07-04 |
| 5994418 | Hollow polyimide microspheres | Erik S. Weiser, Terry L. St. Clair, Hisayasu Kaneshiro | 1999-11-30 |
| 5906712 | Production of fiber reinforced composite | Keiichi Asami, Kiyotaka Nakanishi, Hideki Takahashi, Ritsuko Shidei, Azusa Yamagata | 1999-05-25 |
| 5854380 | Polyimide precursor solution process for the production thereof coating or film obtained therefrom and process for producing the film | Keitarou Seto, Shoji Okamoto, Minoru Saitou | 1998-12-29 |
| 5817423 | PTC element and process for producing the same | Hiroshi Kajimaru, Keiichi Asami, Yoshiaki Iwaya, Akira Ito | 1998-10-06 |
| 5721031 | Fiber-reinforced porous plastic tube | Yoshiaki Iwaya, Kiyotaka Nakanishi | 1998-02-24 |
| 5719253 | Poly(amic acid) solution and polyimide film or polymide-coated material obtained therefrom | Shoji Okamoto, Hiroshi Yamada, Isao Tomioka, Yoshiaki Iwaya | 1998-02-17 |
| 5510395 | Film forming solution, porous film obtained therefrom and coated material with the porous film | Isao Tomioka, Minoru Saito, Hiroshi Yamada, Yoshiaki Iwaya | 1996-04-23 |
| 5489492 | Composite sheet electrode | Keiichi Asami, Hideki Takahashi, Katsuo Inoue, Toshiyuki Ohsawa, Toshiyuki Kabata +1 more | 1996-02-06 |
| 5466732 | Polyimide precursor solution, process for producing the solution and moldings and coatings obtained therefrom | Isao Tomioka, Takeshi Nakano, Mikio Furukawa | 1995-11-14 |
| 5463016 | Granular material of polyimide precursor, mixture comprising the material and process for producing the material | Isao Tomioka, Takeshi Nakano, Mikio Furukawa | 1995-10-31 |
| 5348818 | Carbonaceous material and a cell using the same | Keiichi Asami, Hideki Takahashi, Katsuo Inoue, Toshiyuki Ohsawa, Toshiyuki Kabata | 1994-09-20 |