Inventor
KOYAMA KAZUMI
JP11 patents
⚠️ This page may combine multiple inventors who share the name “KOYAMA KAZUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU LTD
8 patentsUS4459694AJul 10, 1984
Field programmable device with circuitry for detecting poor insulation between adjacent word lines
FUJITSU LTD23 citations82
US4429388AJan 31, 1984
Field programmable device with internal dynamic test circuit
FUJITSU LTD18 citations73
US4376984AMar 15, 1983
Programmable read-only memory device
FUJITSU LTD10 citations73
US4320507AMar 16, 1982
Field programmable device having test provisions for fault detection
FUJITSU LTD18 citations73
US4498022AFeb 5, 1985
Tristate output buffer with high-impedance state responsive to increase in power supply voltage
FUJITSU LTD13 citations72
US4347584AAug 31, 1982
Programmable read-only memory device
FUJITSU LTD9 citations72
US4319341AMar 9, 1982
Programming circuit for permanently storing data in a programmable read only memory
FUJITSU LTD15 citations72
US4424582AJan 3, 1984
Semiconductor memory device
FUJITSU LTD6 citations61