Inventor · Ushiku, JP

Nobuyuki Yasuda

52Patents
16h-index
98Co-inventors
87Inventor score

Filing activity: Jun 15, 1981 → Apr 12, 2018

Most-cited inventions

PatentTitleAreaCited byStatus
US7074798B2 Xanthine derivative and DPPIV inhibitor Chemistry; Metallurgy 103 Expired
US6579868B1 Purine derivatives and adenosine A2 receptor antagonists serving as preventives/remedies for diabetes Chemistry; Metallurgy 99 Expired
US5347712A Method for manufacturing a multilayer wiring board Emerging Cross-Sectional Technologies 57 Expired
US4491943A Method for transmitting time-sharing multidata Electricity 45 Expired
US6069176A Phenylethanolamine compounds useful as .beta. 3 agonists, process for producing the same, and intermediates in the production of the same Chemistry; Metallurgy 39 Expired
US5402314A Printed circuit board having through-hole stopped with photo-curable solder resist Electricity 39 Expired
USD451073S Plug for a cable General 38 Expired
US5095470A Capacitance detection control circuit for positioning a magnetic head close to a magneto-optical disk Physics 36 Expired
US4776687A Apparatus for detecting ophthalmic disease Human Necessities 28 Expired
US4677252A Circuit board Electricity 24 Expired
US5677326A Indoline compound and 5-HT.sub.3 receptor antagonist containing the same as active ingredient Chemistry; Metallurgy 22 Expired
US6841549B1 Condensed imidazole compounds and a therapeutic agent for diabetes mellitus Chemistry; Metallurgy 20 Expired
US5012400A DC/AC power converting apparatus including DC component remover Electricity 20 Expired
US4449061A Wave-shaping circuit for digital signal Electricity 17 Expired
US5386437A Phase-locked loop circuit Electricity 17 Expired
US6637105B1 Method of manufacturing a multilayer printed wiring board Emerging Cross-Sectional Technologies 17 Expired
US5073778A Digital to analog converter with dither using two parallel paths Electricity 16 Expired
US6750232B2 2-aminopyridine compounds and use thereof as drugs Chemistry; Metallurgy 16 Expired
US5617088A Sampling frequency converting device and memory address control device Physics 15 Expired
US5168483A Magnetic head position control apparatus including drive means responsive to a summed signal from a capacitance detection electrode and a disk size detector means Physics 12 Expired
US5748120A Sampling frequency converting device and memory address control device Physics 12 Expired
US4744649A Ophthalmological measuring apparatus Human Necessities 10 Expired
US6692287B2 Connector Electricity 10 Expired
US6701055B2 Apparatus and method for cutting plastic optical fiber Emerging Cross-Sectional Technologies 9 Expired
US5925093A Sampling frequency converting apparatus Electricity 9 Expired

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