Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5079369 | Syn-isomer of 3,7-disubstituted-3-cephem-4-carboxylic acid compounds and processes for the preparation thereof | Takao Takaya, Takashi Masugi, Hisashi Takasugi | 1992-01-07 |
| 4877873 | Syn-isomer of 3,7-disubstituted-3-cephem-4-carboxylic acid compounds and processes for the preparation thereof | Takao Takaya, Takashi Masugi, Hisashi Takasugi | 1989-10-31 |
| 4871860 | Syn-isomer of 3,7-disubstituted-3-cephem-4-caroxylic acid compounds and processes for the preparation thereof | Takao Takaya, Takashi Masugi, Hisashi Takasugi | 1989-10-03 |
| 4804752 | Syn-isomer of 3,7-disubstituted-3-cephem-4-carboxylic acid compounds and processes for the preparation thereof | Takao Takaya, Takashi Masugi, Hisashi Takasugi | 1989-02-14 |
| 4594446 | 2-alkoxyimino-3,3-dialkoxy-butyrates and derivatives | Ikuo Ueda, Takao Takaya, Masakazu Kobayashi, Takashi Masugi, Hisashi Takasugi +1 more | 1986-06-10 |
| 4544653 | Syn-isomer of 3,7-disubstituted-3-cephem-4-carboxylic acid compounds and processes for the preparation thereof | Takao Takaya, Takashi Masugi, Hisashi Takasugi | 1985-10-01 |
| 4518774 | 3-Cephem intermediates | Ikuo Ueda, Takao Takaya, Masakazu Kobayashi, Takashi Masugi, Hisashi Takasugi +1 more | 1985-05-21 |
| 4493833 | Syn-isomer of 3,7-disubstituted-3-cephem-4-carboxylic acid compounds | Takao Takaya, Takashi Masugi, Hisashi Takasugi | 1985-01-15 |
| 4487767 | 7-[Amino or carboxy substituted oxyimino]-3-[amino or alkoxy substituted heterocyclic thiomethyl] cephalosporin derivatives | Takao Takaya, Takashi Masugi, Hisashi Takasugi | 1984-12-11 |
| 4473566 | 7-(.alpha., .alpha.-Disubstituted-acetamido)-3-substituted-3-cephem-4-carboxylic acids | Takao Takaya, Takashi Masugi, Hisashi Takasugi | 1984-09-25 |
| 4447436 | 1,2,3,4-Tetrahydroisoquinolines 6.10,7,8 dihydroxy substitute-1-methylanilino and use as smooth muscle relaxants | Teiji Kishimoto, Masayuki Kato | 1984-05-08 |
| 4431643 | Syn-isomer of 3-substituted-7-[2-cyclopentyloxyimino-2-(2-aminothiazol-4-yl)-acetamido]- 3 | Takao Takaya, Takashi Masugi, Hisashi Takasugi | 1984-02-14 |
| 4379922 | Cepham compounds | Ikuo Ueda, Takao Takaya, Masakazu Kobayashi, Takashi Masugi, Hisashi Takasugi +1 more | 1983-04-12 |
| 4370332 | 1,2,3,4-Tetrahydroisoquinoline derivatives and the preparation thereof | Teiji Kishimoto, Yoshiyuki Kaneda | 1983-01-25 |
| 4366153 | Cephem compounds | Takao Takaya, Takashi Masugi, Hisashi Takasugi | 1982-12-28 |
| 4364943 | Syn-isomer of 7-[2-alkoxyimino-2-(2-amino-alkanoylamino-or haloalkanoylamino-thiazol-4-yl) acetamids]-3-[hexanoyl-, or phenylalkanoyl-oxymethyl or benzothiazolylthiomethyl]-3-cephem-4-carboxylic acid | Takao Takaya, Takashi Masugi, Hisashi Takasugi | 1982-12-21 |
| 4341775 | Cephem compounds | Takao Takaya, Takashi Masugi, Hisashi Takasugi | 1982-07-27 |
| 4331664 | Syn isomer of 7-[2-cyclo(lower) alkoxyimino-2-(2-amino-or substituted aminothiazol-4-yl)acetamido]-3-lower alkanoyloxymethyl or heterocyclicthiomethyl-3-cephem-4-carboxylic acid compounds | Takao Takaya, Takashi Masugi, Hisashi Takasugi | 1982-05-25 |
| 4316019 | Preparation of syn-isomer of 3-alkanoyloxymethyl-7-(2-alkoxyimino-2-thiazolylacetamido-3-cephem-4-car boxylic acid compounds | Takao Takaya, Takashi Masugi, Hisashi Takasugi | 1982-02-16 |
| 4304770 | Syn-isomer of 3,7-disubstituted-3-cephem-4-carboxylic acid compounds and processes for the preparation thereof | Takao Takaya, Takashi Masugi, Hisashi Takasugi | 1981-12-08 |
| 4298529 | Alkoxyimino dioxy butyric acid derivatives | Ikuo Ueda, Takao Takaya, Masakazu Kobayashi, Takashi Masugi, Hisashi Takasugi +1 more | 1981-11-03 |
| 4292320 | 1,2,3,4-Tetrahydroisoquinoline derivatives and the preparation thereof | Teiji Kishimoto, Yoshiyuki Kaneda | 1981-09-29 |
| 4279818 | Syn-isomers of 7-[2-alkoxyimino-2-(2-amino-thiazol-4-yl)acetamido]-3-[nitrobenzoyl-, or benzoyl-oxymethyl]-3-cephem-4-carboxylic acid | Takao Takaya, Takashi Masugi, Hisashi Takasugi | 1981-07-21 |
| 4254117 | 7-(.alpha.,.alpha.-Disubstituted-acetemido)-3-substituted-3-cephem-4-carb oxylic acids | Takao Takaya, Takashi Masugi, Hisashi Takasugi | 1981-03-03 |
| 4254260 | 3-Substituted-7-substituted alkanamido-3-cephem-4-carboxylic acid compounds | Takao Takaya, Takashi Masugi, Hisashi Takasugi | 1981-03-03 |