Issued Patents All Time
Showing 51–65 of 65 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6803458 | Cellulose acetates and process for producing the cellulose acetates | Toru Ozaki, Hirofumi Sasai, Michiyo Nakai, Shinsuke Suzuki | 2004-10-12 |
| 6758037 | Exhaust emission control device of engine | Mikio Terada, Kazuya Oohashi, Kiyoshi Hatano | 2004-07-06 |
| 6139785 | Cellulose ester composition | Yuichiro Shuto, Yukiko Nakanishi, Masahiko Murayama | 2000-10-31 |
| 5990304 | Cellulose acetate excellent in physical strength, and process for production thereof | Atsunobu Kiyose, Shu Shimamoto, Yuichiro Shuto | 1999-11-23 |
| 5977347 | Cellulose acetate propionate | Yuichiro Shuto | 1999-11-02 |
| 5962677 | Cellulose acetate with high moldability and process for production thereof | Ko Murakami, Toshinori Okano, Atsunobu Kiyose, Shu Shimamoto | 1999-10-05 |
| 5947127 | Tobacco filters and method of producing the same | Hitoshi Tsugaya, Nobuyuki Oji, Kanae Nishimura | 1999-09-07 |
| 5919920 | Cellulose acetate with high moldability and process for production thereof | Ko Murakami, Toshinori Okano, Atsunobu Kiyose, Shu Shimamoto | 1999-07-06 |
| 5914397 | Cellulose acetate excellent in physical strength, and process for production thereof | Atsunobu Kiyose, Shu Shimamoto, Yuichiro Shuto | 1999-06-22 |
| 5856468 | Cellulose acetate propionate, solution thereof and cellulose acetate propionate film | Yuichiro Shuto | 1999-01-05 |
| 5758669 | Tobacco filters and production process thereof | Kanae Nishimura | 1998-06-02 |
| 5728462 | Cigarette filter material | Yuriko Arino | 1998-03-17 |
| 5706833 | Tobacco filters and method of producing the same | Hitoshi Tsugaya, Nobuyuki Oji, Kanae Nishimura | 1998-01-13 |
| 5451672 | Process for producing cellulose acetate | Yoshiaki Kaino, Ryota IWATA | 1995-09-19 |
| 4487926 | Fluorine-containing cellulose derivatives | Nobuo Ishikawa | 1984-12-11 |