Shigeru Okano
15Patents
6h-index
27Co-inventors
66Inventor score
Filing activity: Aug 16, 1973 → Mar 27, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US3954733A | Naphthyridine-3-carboxamido-benzylpenicillins and salts thereof | Chemistry; Metallurgy | 20 | Expired |
| US3992371A | Penicillins substituted with heterocyclic and substituted phenyl groups | Chemistry; Metallurgy | 18 | Expired |
| US3932400A | Thiazole derivatives | Chemistry; Metallurgy | 13 | Expired |
| US3951955A | Penicillins substituted with heterocyclic groups | Chemistry; Metallurgy | 11 | Expired |
| US4008220A | Penicillins | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4014895A | Method for synthesis of optically active thiolactones | Chemistry; Metallurgy | 8 | Expired |
| US3998817A | Process for producing cephalosporanic acid derivatives | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4286958A | Method of dyeing cellulose fiber-containing structures | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4392265A | Method of modifying the dye affinity of cellulose fiber-containing structure with benzene sulfonyl chloride | Emerging Cross-Sectional Technologies | 3 | Expired |
| US3951998A | Benzothiazole derivatives | Chemistry; Metallurgy | 2 | Expired |
| US3931219A | Process for preparing hexahydrothieno[3,4-d]imidazole-2,4-diones | Chemistry; Metallurgy | 1 | Expired |
| US4003887A | Novel penicillins and their preparation | Chemistry; Metallurgy | 1 | Expired |
| US9902683B2 | Highly durable polyester polyol | Chemistry; Metallurgy | 0 | Active |
| US8039645B2 | Method for continuously producing 2,5-dihydrofuran | Emerging Cross-Sectional Technologies | 0 | Active |
| US10029965B2 | Process for producing polyhydric alcohol | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.