Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8581016 | Process for producing alkylated aromatic compound and process for producing phenol | Toshihiro Takai, Michiaki Umeno, Terunori Fujita, Tsuneyuki Ohkubo | 2013-11-12 |
| 8546633 | Method for producing alkylated aromatic compound, method for producing cumene, and method for producing phenol | Kenji Fujiwara, Tsuneyuki Ohkubo, Terunori Fujita, Masayasu Ishibashi, Masao Imai +1 more | 2013-10-01 |
| 8536394 | Process for producing alkylated aromatic compounds and process for producing phenols | Tsuneyuki Ohkubo, Masayasu Ishibashi, Masao Imai, Terunori Fujita, Kenji Fujiwara | 2013-09-17 |
| 7790936 | Process for preparing alkylated aromatic compound | Toshihiro Takai, Michiaki Umeno, Terunori Fujita, Tsuneyuki Ohkubo | 2010-09-07 |
| 6743959 | Method for the dehydrogenation of triisopropyl benzene and diisopropyl benzene | Hiroyoshi Watanabe, Tatsumi Matsushita, Naoshi Nagai, Hisaharu Kuboyama | 2004-06-01 |
| 5187283 | Process for the preparation of indigo compounds | Yoshihiro Yamamoto, Usaji Takaki, Yoshihisa Inoue, Isao Hara | 1993-02-16 |
| 5179224 | Preparation process of cinnamate ester | Usaji Takaki, Yoshihiro Yamamoto, Toshio Matsuhisa, Isamu Sudo | 1993-01-12 |
| 5112987 | Process for the preparation of indigo compounds | Yoshihiro Yamamoto, Usaji Takaki, Isao Hara | 1992-05-12 |
| 4992556 | Process for the preparation of indigo compounds | Usaji Takaki, Hiroharu Suzuki, Yoshihiro Yamamoto, Isao Hara | 1991-02-12 |
| 4973706 | Process for the preparation of indigo compounds | Yoshihiro Yamamoto, Usaji Takaki, Isao Hara | 1990-11-27 |
| 4966977 | Process for the preparation of indigo compounds | Usaji Takaki, Yoshihiro Yamamoto, Isao Hara | 1990-10-30 |
| 4908472 | Preparation process of cinnamate ester | Usaji Takaki, Yoshihiro Yamamoto, Isao Hara | 1990-03-13 |
| 4319018 | Process for producing polymethylene polyphenyl polycarbamates | Katsuharu Miyata, Seiji Hasegawa, Isao Hara | 1982-03-09 |
| 4307029 | Process for preparing polymethylene-polyphenyl polyisocyanates | Koichi Takeuchi, Seiji Hasegawa | 1981-12-22 |