Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE37979 | Pyrimidine derivatives and anti-viral agent containing the same as active ingredient thereof | Hiromichi Tanaka, Erik Desire Alice DeClercq, Masanori Baba, Richard T. Walker, Masaru Ubasawa | 2003-02-04 |
| 5461060 | Pyrimidine derivatives and anti-viral agent containing the same as active ingredient thereof | Hiromichi Tanaka, Erik De Clercq, Masanori Baba, Richard T. Walker, Masaru Ubasawa | 1995-10-24 |
| 5318972 | Pyrimidine nucleoside derivative and antiviral agent containing the derivative as active ingredient | Hiromichi Tanaka, Erik De Clercq, Masanori Baba, Richard T. Walker, Masaru Ubasawa | 1994-06-07 |
| 5112835 | 6-substituted acyclopyrimidine nucleoside derivatives and antiviral agents containing the same as active ingredient thereof | Hiromichi Tanaka, Erik De Clercq, Masanori Baba, Richard T. Walker, Masaru Ubasawa | 1992-05-12 |
| 5061800 | Camptothecin derivatives | Takashi Yaegashi, Satoru Okajima, Seigo Sawada, Kenichiro Nokata, Kenichi Tezuka +2 more | 1991-10-29 |
| 4956345 | 2-alkynyladenosines as antihypertensive agents | Akira Matsuda, Toichi Abiru, Haruhiko Machida | 1990-09-11 |
| 4914205 | Camptothecin derivatives | Seigo Sawada, Kenichiro Nokata, Satoru Okajima, Hisako Nagai, Takashi Yaegashi +1 more | 1990-04-03 |
| 4841068 | 3-hydroxy pyrazole derivatives | Yoshihiro Fujikawa, Masazumi Wakamatsu, Mariko Fukui | 1989-06-20 |
| 4746663 | Pyrazolo[4,3-d]pyrimidine derivative, process for its production, and antihyperlipidemic or antiatherosclerotic agent containing it | Yoshihiro Fujikawa, Mikio Suzuki, Mitsuaki Sakashita, Nobutomo Tsuruzoe | 1988-05-24 |
| RE32518 | Camptothecin derivatives | Masahiko Mutai, Seigo Sawada, Kenichiro Nokata, Hisao Hagiwara | 1987-10-13 |
| 4654348 | Pyrazolo[4,3-d]pyrimidine derivative, process for its production, antihyperlipidemic agent containing it, its intermediate, and process for the production of the intermediate | Yoshihiro Fujikawa, Mikio Suzuki, Mitsuaki Sakashita, Nobutomo Tsuruzoe | 1987-03-31 |
| 4604463 | Camptothecin derivatives and process for preparing same | Seigo Sawada, Kenichiro Nokata, Eiichi Sugino, Masahiko Mutai | 1986-08-05 |
| 4545880 | Photochemical process for preparing camptothecin derivatives | Seigo Sawada, Kenichiro Nokata, Masahiko Mutai | 1985-10-08 |
| 4513138 | Camptothecin-1-oxide derivatives | Seigo Sawada, Kenichiro Nokata, Masahiko Mutai | 1985-04-23 |
| 4473692 | Camptothecin derivatives and process for preparing same | Seigo Sawada, Kenichiro Nokata, Masahiko Mutai | 1984-09-25 |
| 4399276 | 7-Substituted camptothecin derivatives | Masahiko Mutai, Seigo Sawada, Kenichiro Nokata | 1983-08-16 |
| 4399282 | Camptothecin derivatives | Masahiko Mutai, Seigo Sawada, Kenichiro Nokata, Hisao Hagiwara | 1983-08-16 |