Masashi Hashimoto
248Patents
24h-index
176Co-inventors
93Inventor score
Filing activity: Oct 19, 1973 → Jun 17, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5070297A | Full wafer integrated circuit testing device | Physics | 308 | Expired |
| US4963530A | Renin inhibitor peptide compounds, a process for the preparation thereof and pharmaceutical composition comprising the same | Emerging Cross-Sectional Technologies | 140 | Expired |
| US5090118A | High performance test head and method of making | Emerging Cross-Sectional Technologies | 98 | Expired |
| US7330434B2 | Traffic quality measurement apparatus and method | Electricity | 88 | Expired |
| US5767293A | Oxaspiro2,5! octane derivative | Chemistry; Metallurgy | 59 | Expired |
| US4999814A | Dynamic memory with internal refresh circuit and having virtually refresh-free capability | Physics | 55 | Expired |
| US4940709A | Piperazine compound as PAF-antagonist | Chemistry; Metallurgy | 52 | Expired |
| US5021845A | Semiconductor device and process fabrication thereof | Electricity | 52 | Expired |
| US4806538A | Piperazine compound as PAF-antagonist | Chemistry; Metallurgy | 43 | Expired |
| US5689467A | Apparatus and method for reducing test time of the data retention parameter in a dynamic random access memory | Physics | 43 | Expired |
| US4956820A | Arbiter circuit for establishing priority control of read, write and refresh operations with respect to memory array | Physics | 40 | Expired |
| US5198699A | Capacitor-driven signal transmission circuit | Electricity | 38 | Expired |
| US6307233A | Electrically isolated double gated transistor | Electricity | 36 | Expired |
| US4576753A | Azetidinone compounds and processes for preparation thereof | Chemistry; Metallurgy | 36 | Expired |
| US4734419A | Quinazoline derivatives, compositions thereof and their use in treating diabetic complications | Chemistry; Metallurgy | 36 | Expired |
| US5093807A | Video frame storage system | Electricity | 36 | Expired |
| US5748544A | Apparatus and method for reducing test time of the data retention parameter in a dynamic random access memory | Physics | 34 | Expired |
| US4743614A | Amino acid derivatives and processes for preparation thereof | Chemistry; Metallurgy | 33 | Expired |
| US5059897A | Method and apparatus for testing passive substrates for integrated circuit mounting | Physics | 32 | Expired |
| US4772594A | Prodrug compounds, process for the preparation thereof and sustained release preparation comprising the same | Chemistry; Metallurgy | 30 | Expired |
| US5284828A | Peptide compound and its preparation | Emerging Cross-Sectional Technologies | 27 | Expired |
| US7880620B2 | RFID tag and construction site management system and management method using the same | Physics | 27 | Active |
| US5023472A | Capacitor-driven signal transmission circuit | Electricity | 26 | Expired |
| US5430022A | Peptide compound and its preparation | Human Necessities | 26 | Expired |
| US4882710A | FIFO memory including dynamic memory elements | Physics | 24 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.