Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10975501 | Carbon material and production method for same | Manabu Yamatani, Tomoyoshi Yamashita, Kazunao Hareyama | 2021-04-13 |
| 10087075 | Partially cyclized polyacrylonitrile polymer, polyacrylonitrile flame-resistant polymer, polyacrylonitrile flame-resistant fiber, carbon fiber, and preparation methods thereof | Hikaru Nakayama, Teruyuki Yamada, Keiichi Sakashita | 2018-10-02 |
| 9157172 | Method for producing carbon-fiber bundles | Yasuhito Tokoro | 2015-10-13 |
| 5670236 | Biaxially oriented polyester film for magnetic recording medium | Kazuo Endo, Seiji Sakamoto, Takashi Harada, Narihiro Masuda, Masashi Inagaki +1 more | 1997-09-23 |
| 5429855 | Biaxially oriented laminated polyester film for magnetic recording media | Kazuo Endo | 1995-07-04 |
| 5364698 | Laminated polyester film for magnetic recording medium | — | 1994-11-15 |
| RE34727 | Low-shrinkage polyester film and preparation thereof | Shigeo Utsumi, Kichinojo Tomitaka, Masumi Koizumi | 1994-09-13 |
| 5279881 | Laminated polyester film for magnetic recording medium comprising specific particles | — | 1994-01-18 |
| 5093064 | Low-shrinkage polyester film and preparation thereof | Shigeo Utsumi, Kichinojo Tomitaka, Masumi Koizumi | 1992-03-03 |
| 5071690 | Moldable biaxially stretched polyester film | Yujiro Fukuda | 1991-12-10 |
| 5045379 | Polyester film for high density magnetic recording medium | Shigeo Utsumi, Kichinojo Tomitaka | 1991-09-03 |
| 4985537 | Process of making a biaxially stretched polyester film and biaxially stretched polyester film | Shigeo Utsumi, Kichinojo Tomitaka | 1991-01-15 |
| 4871784 | Minute-cellular polyester film | Satoshi Otonari, Yoshinori Sato, Narihiro Masuda | 1989-10-03 |
| 4857396 | Minute-cellular polyester film provided with coating | Satoshi Otonari, Yoshinori Sato, Narihiro Masuda | 1989-08-15 |