Hiroshi Ishihara
51Patents
13h-index
109Co-inventors
87Inventor score
Filing activity: Jan 25, 1983 → Oct 9, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4565584A | Method of producing single crystal film utilizing a two-step heat treatment | Emerging Cross-Sectional Technologies | 58 | Expired |
| US6145354A | Door lock system | Emerging Cross-Sectional Technologies | 56 | Expired |
| US5303199A | Redundant memory device having a memory cell and electrically breakable circuit having the same dielectric film | Electricity | 44 | Expired |
| US5299152A | Anti-fuse memory device with switched capacitor setting method | Electricity | 33 | Expired |
| US6131967A | Door lock assembly for automotive vehicles | Emerging Cross-Sectional Technologies | 25 | Expired |
| US5519812A | Ferrelectric adaptive-learning type product-sum operation circuit element and circuit using such element | Physics | 24 | Expired |
| US5119163A | Semiconductor device | Electricity | 21 | Expired |
| US5981366A | Method for manufacturing non-volatile memory | Electricity | 20 | Expired |
| US5944367A | Door closing apparatus | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5299151A | Method for writing into semiconductor memory | Physics | 19 | Expired |
| US6057431A | Amidite derivatives and oligonucleotide derivatives | Chemistry; Metallurgy | 17 | Expired |
| US5822239A | Method of writing data to a single transistor type ferroelectric memory | Physics | 15 | Expired |
| US5034738A | Concentrator for local area network with loop topology | Electricity | 13 | Expired |
| US5278784A | Non-volatile memory | Physics | 13 | Expired |
| US7465980B2 | Ferroelectric memory, multivalent data recording method and multivalent data reading method | Electricity | 12 | Expired |
| US5179291A | Access unit for local area network | Electricity | 12 | Expired |
| US7341291B2 | Door handle device for vehicle | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5466021A | Door closing device | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5285959A | Air heating apparatus | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US5009035A | Window regulator apparatus | Fixed Constructions | 9 | Expired |
| US5951069A | Door closing apparatus | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6676556B2 | Motor device for actuating vehicle door operation device | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5454607A | Door closing device | Emerging Cross-Sectional Technologies | 9 | Expired |
| US9968583B2 | Method of manufacture of liposome composition | Human Necessities | 6 | Active |
| US4685113A | Driver isolating circuit for common bus-type transmission of local area network | Electricity | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.