Inventor · Ashikawa, JP

Shin Kimura

30Patents
16h-index
61Co-inventors
84Inventor score

Filing activity: Apr 12, 1974 → Nov 7, 2012

Most-cited inventions

PatentTitleAreaCited byStatus
US5196910A Semiconductor memory device with recessed array region Electricity 79 Expired
US4683838A Plasma treatment system Electricity 73 Expired
US4882289A Method of making a semiconductor memory device with recessed array region Emerging Cross-Sectional Technologies 70 Expired
US6271709A Gate drive circuit of voltage drive switching element Electricity 52 Expired
US5459655A Neutral-point clamped inverter device using semiconductor modules Electricity 44 Expired
US5731970A Power conversion device and semiconductor module suitable for use in the device Emerging Cross-Sectional Technologies 38 Expired
US5210479A Drive circuit for an insulated gate transistor having overcurrent detecting and adjusting circuits Electricity 33 Expired
US5801936A Semiconductor module for a power conversion device Electricity 32 Expired
US6304472A Electric power converting system with integrator providing output indicative of current Electricity 31 Expired
US7667259B2 Non-volatile semiconductor device and method of fabricating embedded non-volatile semiconductor memory device with sidewall gate Physics 30 Active
US6353258B1 Semiconductor module Electricity 28 Expired
US5929519A Semiconductor module including switching device chips and diode chips Emerging Cross-Sectional Technologies 24 Expired
US5274541A Parallel circuit module including a diode and an IGBT Electricity 23 Expired
US6353236B1 Semiconductor surge absorber, electrical-electronic apparatus, and power module using the same Electricity 22 Expired
US6169672A Power converter with clamping circuit Emerging Cross-Sectional Technologies 19 Expired
US6204717A Semiconductor circuit and semiconductor device for use in equipment such as a power converting apparatus Electricity 17 Expired
USRE38296E1 Semiconductor memory device with recessed array region General 12 Expired
US6600978B2 Railway vehicle operation-control system and a railway vehicle using the operation control system Emerging Cross-Sectional Technologies 11 Expired
US4417156A Gate circuit for thyristors Electricity 10 Expired
US4315274A Thyristor with switchable capacitor between auxiliary thyristor cathode and main thyristor gate regions Electricity 9 Expired
US6414370B1 Semiconductor circuit preventing electromagnetic noise Electricity 7 Expired
US4612561A Parallel-connected gate turn-off thyristors Electricity 6 Expired
US4214254A Amplified gate semiconductor controlled rectifier with reduced lifetime in auxiliary thyristor portion Electricity 5 Expired
US4114178A Semiconductor controlled rectifier having an auxiliary region with localized low resistance paths to the control gate Electricity 4 Expired
US4651189A Semiconductor device provided with electrically floating control electrode Electricity 3 Expired

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