Katsumi Yuasa
10Patents
7h-index
28Co-inventors
66Inventor score
Filing activity: Nov 6, 1975 → Jul 1, 1997
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5231193A | Process for producing ellagic acid | Chemistry; Metallurgy | 31 | Expired |
| US4450233A | Immobilization of microorganisms in a polymer gel | Chemistry; Metallurgy | 20 | Expired |
| US5804597A | Agent for the prevention or treatment of cataracts | Human Necessities | 15 | Expired |
| US5773262A | Process for the preparation of proanthocyanidins | Chemistry; Metallurgy | 14 | Expired |
| US5871574A | Method for collecting tomato pigment and its application | Human Necessities | 12 | Expired |
| US4026795A | Method for the regeneration of activated carbon | Chemistry; Metallurgy | 11 | Expired |
| US5814494A | Process for improving the property of proanthocyanidins and for preparing an improved proanthocyanidin product | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4760021A | Biological response modifier having cell differentiation-induction activity and process for production thereof | Human Necessities | 5 | Expired |
| US4360594A | Process for producing L-tryptophan or derivatives thereof using microorganisms | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4349627A | Process for producing L-tryptophan or derivatives thereof using a microorganism | Emerging Cross-Sectional Technologies | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.