Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8877825 | Catalyst composition for production of polyurethane resin and method for producing polyurethane resin | Hiroyuki Kometani | 2014-11-04 |
| 8779018 | Catalyst composition for production of rigid polyurethane foam and isocyanurate-modified rigid polyurethane foam and raw-material composition containing the same | Katsumi Tokumoto | 2014-07-15 |
| 8765008 | Hydroxyalkylated polyalkylenepolyamine composition, method for producing same and method for producing polyurethane resin using such hydroxyalkylated polyalkylenepolyamine composition | Takahiro Masuda | 2014-07-01 |
| 8513318 | Method for producing a rigid polyurethane foam | Hiroyuki Kiso, Katsumi Tokumoto | 2013-08-20 |
| 8222311 | Hydroxyalkylated polyalkylenepolyamine composition, method of producing the same and their use in polyurethanes | Takahiro Masuda | 2012-07-17 |
| 7572837 | Process for the production of flexible polyurethane foams | Hiroyuki Kometani | 2009-08-11 |
| 7183331 | Method for producing a rigid polyurethane foam | Hiroyuki Kiso, Katsumi Tokumoto | 2007-02-27 |
| 7064172 | Catalyst for production of a polyurethane resin and method for producing a polyurethane resin | Takahiro Masuda, Hiroaki Nakamura | 2006-06-20 |
| 6777456 | Method for producing a rigid polyurethane foam | Hiroyuki Kiso, Katsumi Tokumoto | 2004-08-17 |
| 6723819 | Catalyst for production of a polyurethane resin and method for producing a polyurethane resin | Takahiro Masuda, Hiroaki Nakamura | 2004-04-20 |
| 6596663 | Catalyst composition | Hiroyuki Kometani, Masaki Ishida | 2003-07-22 |
| 6384177 | Process for producing polyurethane and polyisocyanurate | Katsumi Tokumoto, Shuichi Okuzono | 2002-05-07 |
| 6384097 | Amine catalyst for producing rigid polyurethane foam | Katsumi Tokumoto, Shuichi Okuzono | 2002-05-07 |
| 6307102 | Amine catalyst for producing polyurethane and polyisocyanurate | Katsumi Tokumoto, Shuichi Okuzono | 2001-10-23 |
| 5591781 | Process for producing polyurethane foam with high curing rate | Hiroyuki Yoshimura, Hideaki Kisaka, Shuichi Okuzono | 1997-01-07 |
| 5374666 | Amine catalyst for producing polyurethane and process for producing polyurethane | Masaki Ishida, Shuichi Okuzono | 1994-12-20 |
| 5306738 | Process for producing flexible polyurethane foam having high air flow property | Hiroyuki Yoshimura, Shoji Arai | 1994-04-26 |
| 5304578 | Process for producing urethane foam having a high density skin layer | Shuichi Okuzono | 1994-04-19 |
| 5229430 | Amine catalyst for producing polyurethane and process for producing polyurethane | Masaki Ishida, Shuichi Okuzono | 1993-07-20 |
| 5100927 | Process for producing rigid polyurethane foam | Shuichi Okuzono, Masaki Ishida, Shoji Arai, Hiroyuki Yoshimura | 1992-03-31 |
| 5006501 | Amine catalyst for forming fine-cell rigid polyurethane foam | Shoji Arai | 1991-04-09 |
| 4910230 | Preparation of fine-cell rigid polyurethane foam using amine catalyst | Shoji Arai | 1990-03-20 |
| 4638016 | Process for producing high density elastic polyurethane using a combination of 4-methyl-1-(2-dimethylaminoethyl) piperazine together with another tertiary amine catalyst | Shoji Arai, Masazumi Hasegawa | 1987-01-20 |
| 4617286 | Catalyst for polyurethane having delay property | Shoji Arai, Yukihiro Tsutsumi | 1986-10-14 |