Yoshiyuki Koyama
9Patents
4h-index
30Co-inventors
57Inventor score
Filing activity: Sep 18, 1980 → Jun 11, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5206384A | Actinonin derivatives and pharmaceutically acceptable salts thereof | Chemistry; Metallurgy | 60 | Expired |
| US5478575A | Polymers having benzeneboronic acid groups and insulin complexes of same of a sugar response type | Human Necessities | 38 | Expired |
| US5130126A | Polymer-drug conjugate and a method of producing it | Human Necessities | 37 | Expired |
| US10716874B2 | Material to form a hydrogel | Human Necessities | 20 | Active |
| US4393058A | Cephalosporin compounds | Chemistry; Metallurgy | 4 | Expired |
| US5003055A | Anthracycline derivatives having inhibitory activity against reverse transcriptase of human immunodeficiency virus | Chemistry; Metallurgy | 1 | Expired |
| US8492142B2 | Freeze-dried product for introducing nucleic acid, oligonucleic acid or derivative thereof | Human Necessities | 0 | Active |
| US11045575B2 | Material to form a hydrogel | Human Necessities | 0 | Active |
| US7550512B2 | Medical polymers and uses thereof | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.