Inventor · Yokohama, JP

Yukimasa Uchida

32Patents
17h-index
15Co-inventors
74Inventor score

Filing activity: Sep 26, 1974 → Mar 26, 1992

Most-cited inventions

PatentTitleAreaCited byStatus
US4385308A Non-volatile semiconductor memory device Electricity 106 Expired
US4432610A Liquid crystal display device Physics 95 Expired
US4585955A Internally regulated power voltage circuit for MIS semiconductor integrated circuit Electricity 81 Expired
US4837460A Complementary MOS circuit having decreased parasitic capacitance Electricity 44 Expired
US4608666A Semiconductor memory Physics 40 Expired
US4792834A Semiconductor memory device with buried layer under groove capacitor Electricity 40 Expired
US4814853A Semiconductor device with programmable fuse Electricity 39 Expired
US4044343A Non-volatile random access memory system Physics 39 Expired
US4517583A Semiconductor integrated circuit including a fuse element Electricity 38 Expired
US4532607A Programmable circuit including a latch to store a fuse's state Physics 38 Expired
US4122541A Non-volatile memory device Physics 34 Expired
US4327368A CMOS Transistor pair with reverse biased substrate to prevent latch-up Electricity 28 Expired
US4479202A CMOS Sense amplifier Electricity 26 Expired
US3950737A Nonvolatile counter circuit Electricity 24 Expired
US4697252A Dynamic type semiconductor memory device Physics 20 Expired
US4641165A Dynamic memory device with an RC circuit for inhibiting the effects of alpha particle radiation Electricity 19 Expired
US4723155A Semiconductor device having a programmable fuse element Emerging Cross-Sectional Technologies 19 Expired
US4011576A Nonvolatile semiconductor memory devices Electricity 14 Expired
US4489339A SOS MOSFET With self-aligned channel contact Electricity 14 Expired
US4467452A Nonvolatile semiconductor memory device and method of fabricating the same Electricity 12 Expired
US4122531A Memory and control circuit for the memory Physics 12 Expired
US4794571A Dynamic read-write random access memory Physics 11 Expired
US4453234A Nonvolatile semiconductor memory device Electricity 10 Expired
US4484209A SOS Mosfet with thinned channel contact region Electricity 9 Expired
US4287574A Memory cell with non-volatile memory elements Emerging Cross-Sectional Technologies 8 Expired

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