Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6111113 | Process for the preparation of 2,3,5-collidine and 2-ethyl-5-methylpyridine | Naorou Itoh | 2000-08-29 |
| 5237068 | Process for producing pyridine bases | Shinkichi Shimizu, Masanori Doba, Akira Iguchi | 1993-08-17 |
| 5071802 | Regeneration of catalysts by burning in the presence of alcohols | Shinkichi Shimizu, Takayasu Niwa, Masanori Doba, Akira Iguchi, Hiroshi Ichihashi +1 more | 1991-12-10 |
| 4810794 | Process for producing pyridine bases | Shinkichi Shimizu, Masanori Doba, Akira Iguchi, Hiroshi Sato, Ken-ichi Hirose +1 more | 1989-03-07 |
| 4778890 | Process for preparing nitriles | Shinkichi Shimizu, Takayuki Shoji, Masanori Doba, Akira Taguro, Akira Iguchi +1 more | 1988-10-18 |