Hideo Segawa
23Patents
13h-index
41Co-inventors
81Inventor score
Filing activity: Feb 19, 1980 → Mar 10, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5890189A | Memory management and protection system for virtual memory in computer system | Physics | 173 | Expired |
| US6075862A | Decryption key management scheme for software distribution system | Physics | 65 | Expired |
| US5870467A | Method and apparatus for data input/output management suitable for protection of electronic writing data | Physics | 55 | Expired |
| US5627987A | Memory management and protection system for virtual memory in computer system | Physics | 46 | Expired |
| US5023912A | Pattern recognition system using posterior probabilities | Physics | 38 | Expired |
| US5826057A | Method for managing virtual address space at improved space utilization efficiency | Physics | 36 | Expired |
| US4816748A | Electronic thermohygrometer with square-wave pulse signal generator | Physics | 35 | Expired |
| US4905287A | Pattern recognition system | Physics | 32 | Expired |
| US5153563A | Fire sensing system, process for sensing fire and environment monitor | Physics | 30 | Expired |
| US4499384A | Image sensing device | Electricity | 25 | Expired |
| US5134292A | Moving object detector and moving object detecting system | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4648686A | Optical switch array | Physics | 20 | Expired |
| US4312562A | Optical control device | Physics | 18 | Expired |
| US6429172B1 | Method of manufacturing pseudo-boehmite | Chemistry; Metallurgy | 10 | Expired |
| US4375644A | Photoelectric element, picture-reading device including the same, and process for production thereof | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4763041A | Dot array fluorescent tube for writing optical information in optical printer | Electricity | 9 | Expired |
| US4633271A | Optical writing device | Electricity | 8 | Expired |
| US5537278A | Thin film laminate magnetic head with reaction prevention layers | Physics | 7 | Expired |
| US7776131B2 | Manufacturing method for oxide dispersed alloy | Performing Operations; Transporting | 2 | Active |
| US10572111B2 | Image display control device, image display control method, image display control program, and recording medium having the program stored thereon | Physics | 2 | Active |
| US5053845A | Thin-film device | Electricity | 2 | Expired |
| US12054417B2 | Bushing for producing glass fibers and method for producing glass fibers | Chemistry; Metallurgy | 0 | Active |
| US10937152B2 | Inspection support method and inspection support device | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.