Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6900360 | High-purity 1,3-butylen glycol, process for producing 1,3-butylene glycol, and process for producing by-product butanol and butyl acetate | Hiroaki Uenakai, Hiroshi Koyama | 2005-05-31 |
| 6881803 | Method for producing copolymer of alkylvinyl ether and maleic anhydride, and copolymer of alkylvinyl ether and meleic anhydride | Toshio Endo, Tatsumi Fujii, Morihito Saito | 2005-04-19 |
| 6376725 | 1,3 butylene glycol of high purity and method for producing the same | Kunio Tagawa | 2002-04-23 |
| 5840987 | Process for the preparation of ethylamines | — | 1998-11-24 |
| 5756836 | Process for producing highly purified acetic acid | Masahiko Shimizu, Kazuyuki Akita, Yasuteru Kajikawa, Takashi Ueno, Yoshiaki Morimoto | 1998-05-26 |
| 5653853 | Method of removing iodine compounds from crude acetic anhydride | Masahiro Kagotani | 1997-08-05 |
| 5161748 | Seat belt retractor | Hiroshi Iguchi | 1992-11-10 |
| 5091563 | Process for preparing .alpha.-phenylpropionic acid derivative | Yasutaka Tanaka, Hidetaka Kojima | 1992-02-25 |
| 4928902 | Vehicle seat belt retractor | — | 1990-05-29 |
| 4843172 | Process for preparing .alpha.-phenylpropionic acid derivative | Yasutaka Tanaka, Hidetaka Kojima | 1989-06-27 |