Mitsuru Shimizu
33Patents
15h-index
36Co-inventors
81Inventor score
Filing activity: Nov 28, 1978 → Apr 23, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5798964A | FRAM, FRAM card, and card system using the same | Physics | 89 | Expired |
| US6097622A | Ferroelectric memory used for the RFID system, method for driving the same, semiconductor chip and ID card | Physics | 54 | Expired |
| US4663584A | Intermediate potential generation circuit | Electricity | 42 | Expired |
| US5119337A | Semiconductor memory device having burn-in test function | Physics | 41 | Expired |
| US5892706A | Fram, fram card, and card system using the same | Physics | 38 | Expired |
| US6046926A | Ferroelectric memory and screening method therefor | Physics | 34 | Expired |
| US4994874A | Input protection circuit for semiconductor integrated circuit device | Electricity | 33 | Expired |
| US4710913A | Optical recording disc | Emerging Cross-Sectional Technologies | 29 | Expired |
| US7057948B2 | Semiconductor integrated circuit device having a test function | Physics | 26 | Expired |
| US5943256A | Nonvolatile ferroelectric memory | Physics | 26 | Expired |
| US5293334A | Pattern layout of power source lines in semiconductor memory device | Physics | 24 | Expired |
| US5066997A | Semiconductor device | Electricity | 21 | Expired |
| US4896294A | Semiconductor memory device with row and column word lines and row and column bit lines | Physics | 18 | Expired |
| US5142492A | Semiconductor memory device | Physics | 16 | Expired |
| US4720826A | Ventilation arrangement for use in an optical recording disc | Physics | 16 | Expired |
| US5594265A | Input protection circuit formed in a semiconductor substrate | Electricity | 15 | Expired |
| US5072271A | Protection circuit for use in semiconductor integrated circuit device | Electricity | 13 | Expired |
| US5840352A | Fresnel lens manufacturing apparatus | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5608477A | Instant camera | Physics | 9 | Expired |
| US4962320A | Input protection circuit for MOS device | Electricity | 6 | Expired |
| US5949109A | Semiconductor device having input protection circuit | Electricity | 6 | Expired |
| US5491526A | Instant camera and manufacturing method of the same | Physics | 6 | Expired |
| US6074196A | Fresnel lens manufacturing apparatus | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6356712B1 | Instant camera with improved processing liquid spreading device | Physics | 5 | Expired |
| US4908250A | Optical recording medium and production method thereof | Emerging Cross-Sectional Technologies | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.