Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5916422 | Method of purifying acetic acid | Satoshi Kimura, Takashi Ueno | 1999-06-29 |
| 5756836 | Process for producing highly purified acetic acid | Masahiko Shimizu, Kazuyuki Akita, Yasuteru Kajikawa, Takashi Ueno, Yasuo Tsuji | 1998-05-26 |
| 5723660 | Process for producing acetic acid | Hiroyuki Nakayama, Takashi Ueno | 1998-03-03 |
| 5648531 | Process for producing acetic anhydride alone or acetic anhydride and acetic acid | Hiroto Tanigawa, Kazuyuki Akita | 1997-07-15 |
| 5625095 | Process for producing high purity acetic acid | Hiroyuki Miura, Masahiko Shimizu, Takashi Sato, Masahiro Kagotani | 1997-04-29 |
| 5554790 | Process for producing acetic anhydride and acetic acid | Yoshiyuki Harano | 1996-09-10 |