Tetsuya Maeda
17Patents
6h-index
31Co-inventors
62Inventor score
Filing activity: Oct 8, 1975 → May 21, 1993
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5081116A | Cephalosporin derivatives | Emerging Cross-Sectional Technologies | 17 | Expired |
| USRE33778E | 1,3-dithietane-2-carboxylic acid penicillin and cephalosporin derivatives | General | 15 | Expired |
| US4263432A | 7.alpha.-Methoxy-7.beta.-(1,3-dithietane-2-carboxamido)cephalosporanic acid derivatives | Chemistry; Metallurgy | 13 | Expired |
| US5334628A | Amine derivatives, processes for preparing the same and fungicides containing the same | Chemistry; Metallurgy | 11 | Expired |
| US4068074A | Cephalosporin derivatives having at the 3-position of the cephem ring a heterocyclic thiomethyl group with a carboxy or sulfo group and at the 7-position of the cephem ring an .alpha.-heterocylic acylaminophenyl-acetamide group | Chemistry; Metallurgy | 10 | Expired |
| US4404373A | Process for the preparation of 7.alpha.-methoxy-7.beta.-(1,3-diethietane-2-carboxamido)cephalosporanic acid derivatives | Chemistry; Metallurgy | 9 | Expired |
| US5106866A | Amine derivatives, processes for preparing the same and fungicides containing the same | Chemistry; Metallurgy | 5 | Expired |
| US4165429A | 7.alpha.-METHOXY-CEPHALOSPORANIC ACID DERIVATIVES | Chemistry; Metallurgy | 4 | Expired |
| US5233035A | Cephalosporin derivatives | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5021458A | Amine derivatives and fungicides containing the same | Chemistry; Metallurgy | 4 | Expired |
| US5120735A | Antifungal composition | Human Necessities | 3 | Expired |
| US4036834A | Derivatives of 7-(.alpha.-hydroxy-substituted pyridyl carboxamido-.alpha. p h .DELTA..sup.3 -cephem-4-carboxylic acid | Chemistry; Metallurgy | 2 | Expired |
| US4198339A | 1,3-Dithietane-2-carboxylic acids and the preparation thereof | Chemistry; Metallurgy | 2 | Expired |
| US5200423A | Amine derivatives, processes for preparing the same and fungicides containing the same | Chemistry; Metallurgy | 0 | Expired |
| USRE32491E | Process for the preparation of 7.alpha.-methoxy-7.beta.-(1,3-diethietane-2-carboxyamido)cephalosporanic acid derivatives | General | 0 | Expired |
| US4414153A | 1,3-Dithietane-2-carboxylic acid penicillin and cephalosporin derivatives | Chemistry; Metallurgy | 0 | Expired |
| USRE34770E | Amine derivatives, processes for preparing the same and fungicides containing the same | General | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.