Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7126037 | Butene oligomer derivatives having terminal 1,4-butanediol functional groups | Tsutomu Takashima, Koji Fujimura | 2006-10-24 |
| 6476284 | Method of dehalogenating hydrocarbon containing carbon-carbon double bond | Koichi Ohashi, Tsutomu Takashima, Teruhisa Kuroki, Koji Fujimura | 2002-11-05 |
| 6462151 | Method of removing and recovering boron trifluoride with metal fluoride and process for polyolefin production using the same | Tsutomu Takashima, Koji Fujimura | 2002-10-08 |
| 6300444 | Process for producing butene polymer | Koichi Ohashi, Toshio Okada, Tsutomu Takashima | 2001-10-09 |
| 6084144 | Method of recovering boron trifluoride complex and process for producing olefin oligomer using the same | Tsutomu Takashima, Yoshisuke Kakuyama, Shigeru Nishikida, Kouji Fujimura | 2000-07-04 |
| 5457228 | Method for producing lower alkyl acetate | Kazuo Sakamoto, Kikuo Sasaki, Isoo Shimizu | 1995-10-10 |
| 5436402 | Method for preparing p-isobutylstyrene | Isoo Shimizu, Yasuo Matsumura, Kazumichi Uchida | 1995-07-25 |
| 5384426 | Process for the preparation of isopropyl acetate | Kyuichi Ohyama, Giichi Shimada, Kazuo Sakamoto | 1995-01-24 |
| 5260477 | Method for preparing alpha-(4-isobutylphenyl)propionic acid or its precursor | Isoo Shimizu, Yasuo Matsumura, Kazumichi Uchida | 1993-11-09 |