Inventor · Yokohama, JP

Haruki Takai

19Patents

7h-index

46Co-inventors

62Inventor score

Filing activity: Nov 21, 1980 → Oct 14, 1999

Most-cited inventions

Patent	Title	Area	Cited by	Status
US5948784A	Quinazoline derivatives	Human Necessities	21	Expired
US5726325A	Tricyclic compounds	Chemistry; Metallurgy	14	Expired
US4344948A	Piperidine derivatives and pharmaceutical compositions containing same	Human Necessities	12	Expired
US4668683A	Cardiotonic quinazoline derivatives	Chemistry; Metallurgy	8	Expired
US6211227A	Tricyclic compounds	Chemistry; Metallurgy	8	Expired
US5112867A	Triphenylmethane derivatives	Chemistry; Metallurgy	7	Expired
US4344945A	Piperidine derivatives	Chemistry; Metallurgy	7	Expired
US5698560A	Imidazoquinazoline derivatives	Chemistry; Metallurgy	5	Expired
US5605900A	Benzotriazines having adenosine uptake inhibitor activity	Chemistry; Metallurgy	4	Expired
US5661147A	Imidazoquinazoline derivatives	Chemistry; Metallurgy	4	Expired
US5891902A	Indole derivatives	Chemistry; Metallurgy	3	Expired
US5413997A	Triphenylmethane derivatives	Chemistry; Metallurgy	3	Expired
US5658917A	Isoquinolines having adenosine uptake inhibitor activity	Chemistry; Metallurgy	2	Expired
US5624926A	Piperidinyl-dioxoquinazolines as adenosine reuptake inhibitors	Chemistry; Metallurgy	2	Expired
US5523464A	Benzenesulfonamide derivatives	Chemistry; Metallurgy	1	Expired
US4390536A	Piperidine derivatives	Chemistry; Metallurgy	1	Expired
US5063227A	Quinazoline-substituted pyridazinone derivatives having cardiotonic activity	Chemistry; Metallurgy	1	Expired
US5648353A	Quinazolines and phthalazines having adenosine uptake inhibitor activity	Chemistry; Metallurgy	1	Expired
US5374634A	Pyridine derivatives	Chemistry; Metallurgy	0	Expired

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