Inventor

Ryoiku Togei

10Patents
5h-index
3Co-inventors
55Inventor score

Filing activity: Mar 30, 1976 → Mar 17, 1986

Most-cited inventions

PatentTitleAreaCited byStatus
US4292091A Method of producing semiconductor devices by selective laser irradiation and oxidation Emerging Cross-Sectional Technologies 39 Expired
US3996658A Process for producing semiconductor memory device Electricity 17 Expired
US4330849A Complementary semiconductor memory device Electricity 13 Expired
US4031608A Process for producing semiconductor memory device utilizing selective diffusion of the polycrystalline silicon electrodes Electricity 12 Expired
US4062037A Semiconductor memory device Electricity 7 Expired
US4571607A Semiconductor device Electricity 4 Expired
US4060796A Semiconductor memory device Electricity 4 Expired
US4672408A Non-volatile semiconductor memory device Electricity 2 Expired
US4228444A Semiconductor device Electricity 1 Expired
US4247863A Semiconductor memory device Electricity 1 Expired

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