Inventor
TOGEI RYOIKU
10 patents
⚠️ This page may combine multiple inventors who share the name “TOGEI RYOIKU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU LTD
9 patentsUS3996658ADec 14, 1976
Process for producing semiconductor memory device
FUJITSU LTD21 citations81
US4330849AMay 18, 1982
Complementary semiconductor memory device
FUJITSU LTD21 citations80
US4062037ADec 6, 1977
Semiconductor memory device
FUJITSU LTD7 citations73
US4031608AJun 28, 1977
Process for producing semiconductor memory device utilizing selective diffusion of the polycrystalline silicon electrodes
FUJITSU LTD13 citations73
US4672408AJun 9, 1987
Non-volatile semiconductor memory device
FUJITSU LTD3 citations61
US4571607AFeb 18, 1986
Semiconductor device
FUJITSU LTD4 citations61
US4228444AOct 14, 1980
Semiconductor device
FUJITSU LTD2 citations61
US4060796ANov 29, 1977
Semiconductor memory device
FUJITSU LTD5 citations61
US4247863AJan 27, 1981
Semiconductor memory device
FUJITSU LTD1 citations50