Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4976679 | Process for producing a urethane and a carbonic acid ester | Takashi Okawa, Nobuo Isogai | 1990-12-11 |
| 4678858 | Process for producing ethanol | Nobuo Isogai, Takashi Okawa, Motoyuki Hosokawa, Natsuko Wakui | 1987-07-07 |
| 4507510 | Process for producing xylyleneglycol | Shigeo Yoshinaka, Tsukasa Toki, Seiji Uchiyama | 1985-03-26 |
| 4398040 | Process for producing trimellitic acid | Takashi Suzuki, Koichi Kitahara, Susumu Naito | 1983-08-09 |