Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4486586 | Cephalosporin derivatives | Yukio Narita, Seiji Iimura, Shimpei Aburaki, Jun Okumura | 1984-12-04 |
| 4474954 | Intermediates for cephalosporin derivatives | Hajime Kamachi, Jun Okumura, Masahisa Oka | 1984-10-02 |
| 4457929 | 3-Quaternary ammonium methyl)-substituted cephalosporin derivatives | Hajime Kamachi, Jun Okumura | 1984-07-03 |
| 4406899 | Cephalosporins | Shimpei Aburaki, Hajime Kamachi, Yukio Narita, Jun Okumura | 1983-09-27 |
| 4394503 | Cephalosporin derivatives | Hajime Kamachi, Jun Okumura, Masahisa Oka | 1983-07-19 |
| 4316024 | Dioxo piperazine compounds | Seiji Iimura, Jun Okumura | 1982-02-16 |
| 4288590 | 7 -[D.alpha.-(4-Hydroxy-1,5-naphthyridine-3-carboxamido)-.alpha.-arylacetam ido]-3-(N,N-dimethyl-aminomethylpyridinium) methyl-3-cephem-4-carboxylates | Masahisa Oka, Jun Okumura | 1981-09-08 |
| 4278675 | Bronchodilating process | Susumu Nakagawa, Tetsuro Yamasaki, Taka-aki Okita, Haruhiro Yamashita | 1981-07-14 |
| 4269839 | Alkylthio-adenines used as bronchodilators | Susumu Nakagawa, Tetsuro Yamasaki, Taka-aki Okita, Haruhiro Yamashita | 1981-05-26 |
| 4241063 | Purine derivatives and their use as bronchodilators | Susumu Nakagawa, Tetsuro Yamasaki, Taka-aki Okita, Haruhiro Yamashita | 1980-12-23 |
| 4231928 | Antibacterial agents | Jun Okumura, Hajime Kamachi | 1980-11-04 |
| 4232155 | Purine compounds | Susumu Nakagawa, Tetsuro Yamasaki, Taka-aki Okita, Haruhiro Yamashita | 1980-11-04 |
| 4206116 | Novel penicillins | Jun Okumura, Hideaki Hoshi | 1980-06-03 |
| 4201860 | Purine derivatives | Susumu Nakagawa, Tetsuro Yamasaki, Taka-aki Okita, Haruhiro Yamashita | 1980-05-06 |
| 4198504 | [3-(Pyridinium)-7-(naphthyiridinyl carbonylamino)acetamido]cephalosporanic acid derivatives | Jun Okumura, Masahisa Oka | 1980-04-15 |
| 4198506 | 2-Carboxyalkyl-2,3-dihydro-6-mercapto-s-triazolo[4,3-b]-pyridazin-3-ones | Jun Okumura, Hajime Kamachi, Seiji Iimura, Hideaki Hoshi, Masahisa Oka | 1980-04-15 |
| 4181797 | 1-N-(.omega.-amino-.alpha.-hydroxyalkanoyl) derivatives of 4'-deoxy-6'-N-methylkanamycin A | Susumu Nakagawa, Soichiro Toda | 1980-01-01 |