Inventor · Tsukuba, JP

Akio Kuroda

37Patents
7h-index
57Co-inventors
72Inventor score

Filing activity: Jun 24, 1975 → Mar 1, 2019

Most-cited inventions

PatentTitleAreaCited byStatus
US6069156A Indole derivatives as cGMP-PDE inhibitors Chemistry; Metallurgy 66 Expired
US5354759A Angiotenin II antagonizing heterocyclic compounds Chemistry; Metallurgy 27 Expired
US4435389A Composition for promoting growth of bifidobacteria Chemistry; Metallurgy 26 Expired
US5530019A Indole derivatives useful as testosterone 5.alpha.-reductase inhibitors Chemistry; Metallurgy 15 Expired
US5215994A Angiotenin II antagonizing heterocyclic derivatives Chemistry; Metallurgy 14 Expired
US6384080B1 Anthranilic acid derivatives as inhibitors of the cGMP-phosphodiesterase Chemistry; Metallurgy 12 Expired
US5210092A Angiotensin II antagonizing heterocyclic derivatives Emerging Cross-Sectional Technologies 10 Expired
US5488330A Bias circuit for controlling bias voltage of differential amplifier Electricity 7 Expired
US7186731B2 2-cyanopyrrolidinecarboxamide compound Chemistry; Metallurgy 6 Expired
US8507216B2 Kit for measurement of endotoxin level by bioluminescent assay Physics 4 Active
US5780633A Process for the preparation of indolizine derivatives Chemistry; Metallurgy 3 Expired
US4916152A Pyrrolidine derivatives as antiasthmatics Chemistry; Metallurgy 3 Expired
US4547545A High density information record made of a conductive resin composition comprising a specific type of dimethylpolysiloxane Electricity 3 Expired
US4592862A Conductive resin composition and information record Chemistry; Metallurgy 2 Expired
US4548739A High density information records made of conductive resin compositions comprising a specifically-treated vinyl chloride-base resin Physics 2 Expired
US4929639A Oxygen-containing heterocyclic compound Chemistry; Metallurgy 2 Expired
US7960312B2 Method and agent for immobilizing protein via protein bound to silicon oxide-containing substance Chemistry; Metallurgy 1 Active
US9322822B2 Method for detecting asbestos Physics 1 Active
US7438652B2 Golf ball marker Human Necessities 1 Expired
US11130981B2 Transformant, method for producing transformant, and method for detecting presence or absence of reduced phosphorus compound using transformant Chemistry; Metallurgy 1 Active
US8283443B2 Method for purifying protein Chemistry; Metallurgy 1 Active
US3974232A Method for producing cyclohexene by dehydration of cyclohexanol Chemistry; Metallurgy 1 Expired
US9499822B2 Method for selectively culturing microorganism using phosphite dehydrogenase gene as marker Chemistry; Metallurgy 1 Active
US5334716A Heterocyclic derivatives Emerging Cross-Sectional Technologies 1 Expired
US9273290B2 Method for producing phosphite dehydrogenase protein and use thereof Chemistry; Metallurgy 0 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.