Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874856 | 3-(substituted)propenyl-7-(aminothiazolylacetamido) ceph-3-em-4-carboxylic acids and esters thereof | Seiji Iimura, Yoshio Abe, Takayuki Naito, Hajime Kamachi | 1989-10-17 |
| 4751295 | Cephalosporin derivatives | Masahisa Oka, Haruhiro Yamashita, Takayuki Naito | 1988-06-14 |
| 4708955 | 3-(substituted)propenyl-7-aminothiazol-ylcephalosporanic acids and esters thereof | Seiji Iimura, Yoshio Abe, Takayuki Naito, Hajime Kamachi | 1987-11-24 |
| 4699979 | 7-amino-3-propenylcephalosporanic acid and esters thereof | Hideaki Hoshi, Takayuki Naito, Yoshio Abe, Shimpei Aburaki | 1987-10-13 |
| 4661590 | Substituted vinyl cephalosporins | Hideaki Hoshi, Takayuki Naito, Yoshio Abe, Shimpei Aburaki | 1987-04-28 |
| 4659812 | Cephalosporin intermediates | Shimpei Aburaki, Yukio Narita, Takayuki Naito, Donald G. Walker | 1987-04-21 |
| 4591641 | Substituted vinyl cephalosporins | Hideaki Hoshi, Takayuki Naito, Yoshio Abe, Shimpei Aburaki | 1986-05-27 |
| 4525473 | Cephalosporins | Shimpei Aburaki, Hajime Kamachi, Yukio Narita, Takayuki Naito | 1985-06-25 |
| 4520022 | Substituted vinyl cephalosporins | Hideaki Hoshi, Takayuki Naito, Yoshio Abe, Shimpei Aburaki | 1985-05-28 |
| 4507487 | Chemical compounds | Hajime Kamachi, Takayuki Naito, Masahisa Oka, Haruhiro Yamashita | 1985-03-26 |
| 4500526 | Cephalosporin derivatives | Kiyoto Imae, Shimpei Aburaki, Yukio Narita, Takayuki Naito | 1985-02-19 |
| 4486586 | Cephalosporin derivatives | Yukio Narita, Seiji Iimura, Shimpei Aburaki, Takayuki Naito | 1984-12-04 |
| 4474954 | Intermediates for cephalosporin derivatives | Hajime Kamachi, Takayuki Naito, Masahisa Oka | 1984-10-02 |
| 4457929 | 3-Quaternary ammonium methyl)-substituted cephalosporin derivatives | Hajime Kamachi, Takayuki Naito | 1984-07-03 |
| 4406899 | Cephalosporins | Shimpei Aburaki, Hajime Kamachi, Yukio Narita, Takayuki Naito | 1983-09-27 |
| 4394503 | Cephalosporin derivatives | Hajime Kamachi, Takayuki Naito, Masahisa Oka | 1983-07-19 |
| 4316024 | Dioxo piperazine compounds | Seiji Iimura, Takayuki Naito | 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, Takayuki Naito | 1981-09-08 |
| 4231928 | Antibacterial agents | Takayuki Naito, Hajime Kamachi | 1980-11-04 |
| 4206116 | Novel penicillins | Takayuki Naito, Hideaki Hoshi | 1980-06-03 |
| 4198506 | 2-Carboxyalkyl-2,3-dihydro-6-mercapto-s-triazolo[4,3-b]-pyridazin-3-ones | Takayuki Naito, Hajime Kamachi, Seiji Iimura, Hideaki Hoshi, Masahisa Oka | 1980-04-15 |
| 4198504 | [3-(Pyridinium)-7-(naphthyiridinyl carbonylamino)acetamido]cephalosporanic acid derivatives | Takayuki Naito, Masahisa Oka | 1980-04-15 |