Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7687621 | Process for regenerating catalyst for producing e-caprolactam and process for producing e-caprolactam | Keisuke Sugita | 2010-03-30 |
| 7238803 | Method for producing epsilon-caprolactam | Masashi Yokota, Yoshinori Kobayashi | 2007-07-03 |
| 7189845 | Method for producing ε-caprolactam | Keisuke Sugita, Masahiro Hoshino | 2007-03-13 |
| 7071360 | Method for evaporating cyclohexanone oxime | Yasumoto Shimazu, Kanji Kuwahara | 2006-07-04 |
| 7060645 | Method for manufacturing zeolite and method for manufacturing ε-caprolactam | Masahiro Hoshino, Keisuke Sugita | 2006-06-13 |
| 7026474 | Method for producing ε-caprolactam and method for reactivating catalyst for production of ε-caprolactam | Keisuke Sugita, Masahiro Hoshino | 2006-04-11 |
| 6265574 | Process for producing .epsilon.-caprolactam | Yasumoto Shimazu, Makoto Yako | 2001-07-24 |
| 6258949 | Apparatus and process for producing .epsilon.-caprolactam | Yasumoto Shimazu | 2001-07-10 |
| 5502184 | Process for producing .epsilon. -caprolactam | Hiroshi Kajikuri, Hideto Tojima, Tomokazu Nakamura | 1996-03-26 |
| 5407881 | Process for increasing the strength of a zeolite molding | Shuzo Murata, Kazuya Tsuchimoto | 1995-04-18 |
| 5403801 | Process for producing .epsilon.-caprolactam and activating solid catalysts therefor | Hiroshi Ichihashi, Hideto Tojima | 1995-04-04 |
| 5354859 | .epsilon.-caprolactam | Hiroshi Ichihashi, Hiroshi Kajikuri, Eiji Tasaka | 1994-10-11 |
| 5315039 | Method for inhibiting thermal decomposition of cycloalkanone oximes | Hiroshi Kajikuri, Yasuhiko Higashio | 1994-05-24 |
| 5304643 | Process for producing epsilon-caprolactam | Hiroshi Kajikuri, Yasuhiko Higashio | 1994-04-19 |
| 5212302 | Process for producing epsilon-caprolactam and activating solid catalysts therefor | Hiroshi Ichihashi, Hideto Tojima | 1993-05-18 |
| 5071802 | Regeneration of catalysts by burning in the presence of alcohols | Shinkichi Shimizu, Takayasu Niwa, Nobuyuki Abe, Masanori Doba, Akira Iguchi +1 more | 1991-12-10 |
| 5066630 | Method for removing nitrogen-containing organic compounds from crystalline metallosilicate | Hiroshi Ichihashi, Gohfu Suzukamo | 1991-11-19 |
| 4986989 | Zeolite fungicide | Masao Sirosita, Masato Mizutani, Shigeko Kimura, Yukio Oguri, Youichi Umada +1 more | 1991-01-22 |
| 4968793 | Process for producing .epsilon.-caprolactam | Hiroshi Ichihashi, Gohfu Suzukamo, Yasuo Nakamura | 1990-11-06 |
| 4779991 | Bottle for mixing and method for mixing with the said bottle | Hiroshi Sasaki, Shoji Konishi | 1988-10-25 |
| 4717769 | Production of epsilon-caprolactam | Hiroshi Sato, Kenichi Hirose, Youichi Umada, Norio Ishii, Hideto Tojima | 1988-01-05 |
| 4717770 | Process for producing epsilon-caprolactam | Hiroshi Sato, Kenichi Hirose, Hideto Tojima, Norio Ishii | 1988-01-05 |