Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7407702 | Polymetaphenylene isophthalamide-based polymer porous film, process for its production and battery separator | Takao Ohno, Tsutomu Nakamura, Susumu Honda, Toyoaki Ishiwata | 2008-08-05 |
| 6797801 | Polyimide film and process for producing the same | Rei Nishio, Susumu Honda, Tsutomu Nakamura | 2004-09-28 |
| 6646060 | Resin composition containing crystalline polyimide | Kiyotsuna Toyohara, Toyoaki Ishiwata, Daisuke Ozaki | 2003-11-11 |
| 6610794 | Polymide/polyarylate resin composition and molded product thereof | Tomonori Sakurai, Takashi Ito, Naoya Saito, Shintaro Shimada | 2003-08-26 |
| 6569366 | Process for producing meta-type wholly aromatic polyamide filaments | Kiyotsuna Toyohara, Tsutomu Nakamura | 2003-05-27 |
| 6428644 | Process and apparatus for producing a laminate for electronic parts | Takao Ohno, Nobuaki Kido, Tsutomu Nakamura, Michio Yoshino, Masatoshi Ozono | 2002-08-06 |
| 6114472 | Thermoplastic resin composition containing amorphous polyimide | Toshitsugu Matsuki, Masaaki Tsukioka | 2000-09-05 |
| 5853878 | Elastic fiber, process for the same and polyester elastomer used thereof | Toyoaki Ishiwata | 1998-12-29 |
| 5723568 | Polyamide solution composition and methods for producing fibrids and paper-like sheets using the same | Keizo Shimada, Tsugusi Yosida, Yuzo Aito | 1998-03-03 |
| 5290906 | Poly(arylene ether ketone), process for producing same and its use | Shunichi Matsumura, Seiji Itoh, Hiroo Inata | 1994-03-01 |
| 5145616 | Process for the preparation of pitch-based carbon fiber | Akihiro Ohba, Tsutomu Nakamura | 1992-09-08 |
| 5047292 | Pitch-based carbon fiber and process for preparation thereof | Akihiro Ohba, Tsutomu Nakamura | 1991-09-10 |
| 4840762 | Process for preparation of high-performance grade carbon fibers | Toru Sawaki, Hideharu Sasaki, Tsutomu Nakamura | 1989-06-20 |
| 4539393 | Dimensionally stable poly-m-phenylene isophthalamide film | Yorikazu Tamura, Tsutomu Nakamura | 1985-09-03 |