Inventor
YOSHIZAWA SHIGERU
16 patents
⚠️ This page may combine multiple inventors who share the name “YOSHIZAWA SHIGERU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
10 patentsUS4291241ASep 22, 1981
Timing signal generating circuit
HITACHI LTD10 citations71
US4133043AJan 2, 1979
Shift register type memory
HITACHI LTD17 citations71
US4430729AFeb 7, 1984
Series resonant drive circuit for magnetic bubble memory
HITACHI LTD3 citations62
US4379341AApr 5, 1983
Series resonance drive circuit for magnetic bubble memory
HITACHI LTD5 citations62
US4168534ASep 18, 1979
Shift register type memory device consisting of a plurality of memory chips
HITACHI LTD2 citations62
US4120042AOct 10, 1978
Magnetic bubble information writing device
HITACHI LTD2 citations62
US4290117ASep 15, 1981
Memory device with circulating storage loops
HITACHI LTD2 citations61
US4145750AMar 20, 1979
Field access magnetic bubble memory device
HITACHI LTD5 citations61
US3943497AMar 9, 1976
Split coil type bubble domain driving apparatus
HITACHI LTD1 citations42
US4247911AJan 27, 1981
Drive circuit for magnetic bubble device
HITACHI LTD0 citations39