Shigeru Yoshizawa
16Patents
6h-index
26Co-inventors
66Inventor score
Filing activity: Jun 27, 1972 → Oct 7, 1999
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4133043A | Shift register type memory | Physics | 16 | Expired |
| US4101970A | Magnetic bubble module | Physics | 10 | Expired |
| US4305366A | Injection timing control system for fuel-injection pump for engine | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US4233668A | Method and apparatus for testing a magnetic bubble memory | Physics | 7 | Expired |
| US6230851A | Air disc brake | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US4305367A | Injection timing control system for fuel-injection pump for engine | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US4291241A | Timing signal generating circuit | Electricity | 6 | Expired |
| US4379341A | Series resonance drive circuit for magnetic bubble memory | Physics | 4 | Expired |
| US4145750A | Field access magnetic bubble memory device | Physics | 3 | Expired |
| US4120042A | Magnetic bubble information writing device | Physics | 2 | Expired |
| US4101971A | Magnetic bubble information writing device | Physics | 2 | Expired |
| US4430729A | Series resonant drive circuit for magnetic bubble memory | Physics | 1 | Expired |
| US3943497A | Split coil type bubble domain driving apparatus | Physics | 1 | Expired |
| US4168534A | Shift register type memory device consisting of a plurality of memory chips | Physics | 1 | Expired |
| US4290117A | Memory device with circulating storage loops | Physics | 1 | Expired |
| US4247911A | Drive circuit for magnetic bubble device | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.