Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7371882 | Reactor for producing a nitrile compound and method for operating the reactor | Shuichi Ueno, Takuji Shitara, Kenichi Nakamura | 2008-05-13 |
| 6509490 | Method of purifying isophthalonitrile | Susumu Otsuka, Takuji Shitara, Kazuhiko Amakawa | 2003-01-21 |
| 6476269 | Method for producing xylylenediamine | Kenichi Nakamura, Susumu {overscore (O)}tsuka, Takuji Shitara, Kazuhiko Amakawa | 2002-11-05 |
| 6284893 | Process for producing nitrile compounds | Takuji Shitara, Takashi Okawa, Shuji Ebata | 2001-09-04 |
| 4990690 | Process for preparing aromatic polyhydric alcohol | Yuji Onda, Masaru Tunoda | 1991-02-05 |