Keizo Ito
12Patents
5h-index
26Co-inventors
62Inventor score
Filing activity: Oct 10, 1978 → Feb 12, 1993
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4430343A | Benzimidazole derivatives, process for the preparation thereof and pharmaceutical composition containing the same | Emerging Cross-Sectional Technologies | 22 | Expired |
| US4663325A | 1-(2,3,4-tri-methoxybenzyl)-4[bis(4-fluorophenyl)methyl] piperazines are useful for treating cerebrovascular disease | Human Necessities | 16 | Expired |
| US4192880A | 2-Substituted benzimidazole compounds | Chemistry; Metallurgy | 7 | Expired |
| US4659726A | Novel 4,5-Bis (4-methoxyphenyl)-2-(pyrrol-2-yl) thiazoles and pharmaceutical composition containing the same | Chemistry; Metallurgy | 6 | Expired |
| US4603130A | 1-substituted-2-(piperazinyl or homopiperazinyl)-benzimidazole compounds and pharmaceutical composition | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4434162A | Phosphonic acid ester, pharmaceutical compositions containing the same and method of using the same | Chemistry; Metallurgy | 4 | Expired |
| US4877790A | Quinazoline derivative, processes for its production, and cerebral dysfunction remedying agent comprising it as active ingredient | Chemistry; Metallurgy | 3 | Expired |
| US5399571A | Neuroprotective drug | Human Necessities | 3 | Expired |
| US4607031A | Novel ethyl benzylphosphinate derivatives, process for production thereof, and their use as calcium antagonist | Chemistry; Metallurgy | 2 | Expired |
| US4742062A | Benzylpiperazine compound and pharmaceutical composition as hypolipidemic agent | Human Necessities | 1 | Expired |
| US4703048A | Novel 1-benzhydryl-4-cinnamylpiperazine derivatives, and pharmaceutical compositions comprising said compounds as active ingredient for treating a cerebrovascular disease | Human Necessities | 1 | Expired |
| US4797400A | Piperazine compounds and anti-ulcer composition containing the same | Human Necessities | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.