Issued Patents All Time
Showing 1–25 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6826033 | Aminoalcohol derivatives | Minoru Sakurai, Kenichi Washizuka, Hitoshi Hamashima, Yasuyo Tomishima, Masashi Imanishi +6 more | 2004-11-30 |
| 6207686 | Endothelin antagonists | Masahiro Neya, Tatsuya Zenkoh, Hitoshi Sawada, Chiyoshi Kasahara, Keiji Hemmi +1 more | 2001-03-27 |
| 5608056 | Substituted 3-pyrrolidinylthio-carbapenems as antimicrobial agents | Hideo Tsutsumi, Keiji Matsuda, Kohji Hattori, Takashi Nakajima | 1997-03-04 |
| 5420122 | 3-pyrrolidinylthio-1-azabicyclo-[3.2.0]hept-2-ene-2-carboxylic acid compounds | Hideo Tsutsumi, Keiji Matsuda, Kohji Hattori, Takashi Nakajima | 1995-05-30 |
| 5359066 | Certain tricyclic pyrido[3,2,1-ij]cinnoline-8-carboxylates, useful as antimicrobial agents | Hideo Tsutsumi, Takeshi Terasawa, David Barrett, Kazuo Sakane, Akira Yazaki +1 more | 1994-10-25 |
| 5306816 | Processes for preparing carbapenem derivatives | Chiyoshi Kasahara, Hideo Tsutsumi, Yoshihiro Murakami | 1994-04-26 |
| 5286721 | 1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid compounds | Toshiyuki Chiba, Hideo Tsutsumi, Kohji Hattori, Satoru Kuroda, Hiroaki Ohtake +1 more | 1994-02-15 |
| 5241064 | Enzymatic process for preparing optically active 3-substituted azetidinones | Toshiyuki Chiba, Fumiyuki Shirai, Kenichi Washizuka, Motohiro Hino | 1993-08-31 |
| 5215983 | Carbapenem compounds | Hideo Tsutsumi, Keiji Matsuda | 1993-06-01 |
| 5202437 | 3-pyrrolidinylthio-1-azabicyclo(3.2.0)-hept-2-ene-2-carboxylic acid compounds | Hideo Tsutsumi, Keiji Matsuda, Kohji Hattori, Takashi Nakajima | 1993-04-13 |
| 5194624 | Intermediates for the preparation of compounds of antimicrobial activity | Hideo Tsutumi, Keiji Matsuda, Kohji Hattori, Takashi Nakajima | 1993-03-16 |
| 5138064 | 3-Pyrrolidinylthio-1-azabicyclo-[3.2.0]hept-2-ene-2-carboxylic acid compounds | Hideo Tsutsumi, Keiji Matsuda, Kohji Hattori, Takashi Nakajima | 1992-08-11 |
| 5102877 | 1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid compounds | Toshiyuki Chiba, Hideo Tsutsumi, Kohji Hattori, Satoru Kuroda, Hiroaki Ohtake +1 more | 1992-04-07 |
| 5081237 | 3-alkenyl-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid compounds | Toshiyuki Chiba, Akira Yamada | 1992-01-14 |
| 5061804 | 3-pyrrolidinylthio-1-azabicyclo-(3.2.0)hept-2-ene-2-carboxylic acid derivatives and processes for the preparation thereof | Hideo Tsutsumi, Keiji Matsuda, Hohji Hattori, Takashi Nakajima | 1991-10-29 |
| 4983596 | 3-pyrrolidinylthio-1-azabicyclo[3.2.0]-hept-2-ene-2-carboxylic acid derivatives and their preparation | Hideo Tsutsumi, Keiji Matsuda, Kohji Hattori, Takashi Nakajima | 1991-01-08 |
| 4963544 | 3-pyrrolidinylthio-1-azabicyclo[3.2.0]-hept-2-ene-2-carboxylic acid compounds | Hideo Tsutsumi, Keiji Matsuda, Kohji Hattori, Takashi Nakajima | 1990-10-16 |
| 4963543 | 3-pyrolidinylthio-1-azabicyclo-[3.2.0]hept-2-ene-2-carboxylic acid derivatives and processes for the preparation thereof | Hideo Tsutsumi, Keiji Matsuda, Kohji Hattori, Takashi Nakajima | 1990-10-16 |
| 4925838 | 3-pyrrolidinylthio-1-azabicyclo[3.2.0]-hept-2-ene-2-carboxylic acid compounds | Hideo Tsutsumi, Keiji Matsuda, Kohji Hattori, Takashi Nakajima | 1990-05-15 |
| 4925948 | 2 amino 5 chloro thiazol-4-yl cycloalkenoxy imino acetic derivatives | Takao Takaya, Hisashi Takasugi, Akiteru Yoshioka | 1990-05-15 |
| 4923857 | 3-Alkenyl-1-azabicyclo(3.2.0)hept-2-ene-2-carboxylic acid compounds | Toshiyuki Chiba, Akira Yamada | 1990-05-08 |
| 4921852 | 3-pyrrolidinylthio-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid compounds | Hideo Tsutsumi, Keiji Matsuda, Kohji Hattori, Takashi Nakajima | 1990-05-01 |
| 4824851 | Pyrimidones as cardiotonic, anti hypertensive, cerebrovascular vasodilator and anti-platelet agents | Takao Takaya, Kiyotaka Ito | 1989-04-25 |
| 4822787 | 3-pyrrolidinylthio-1-azabicyclo(3.2.0)-hept-2-ene-2-carboxylic acid compounds and antimicrobial activity thereof | Hideo Tsutsumi, Keiji Matsuda, Kohji Hattori, Takashi Nakajima | 1989-04-18 |
| 4746664 | Substituted-3,4-dihydro-4-(2,4,6-trimethoxyphenylimino)-2(1H)-pyrimidone s useful as cardiotonic, antihypertensive, cerebrovascular vasodilator and anti-platelet agent | Takao Takaya, Kiyotaka Ito | 1988-05-24 |