Ichiro Sado
28Patents
9h-index
12Co-inventors
72Inventor score
Filing activity: Jan 3, 1974 → Jan 3, 1994
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4380726A | Battery service life indicator | Emerging Cross-Sectional Technologies | 40 | Expired |
| US4402056A | Electronic digital memorandum | Physics | 31 | Expired |
| US5713033A | Electronic equipment displaying translated characters matching partial character input with subsequent erasure of non-matching translations | Physics | 28 | Expired |
| US4803463A | Key input means with changeable display means for displaying key functions | Electricity | 26 | Expired |
| US4590560A | Electronic apparatus having dictionary function | Physics | 24 | Expired |
| US4611995A | Electronic language learning machine | Physics | 20 | Expired |
| US4459036A | Electronic instrument for scheduled data handling | Physics | 19 | Expired |
| US4395704A | Input device for electronic apparatus | Electricity | 11 | Expired |
| US4551818A | Electronic apparatus for translating one language into another | Physics | 10 | Expired |
| US4458243A | Electronic device for displaying accents | Physics | 9 | Expired |
| US4321688A | Electronic equipment capable of statistic processing | Physics | 7 | Expired |
| US4156281A | Electronic instrument | Physics | 7 | Expired |
| US4475164A | Electronic apparatus having television device | Physics | 6 | Expired |
| US4064398A | Electronic calculator | Physics | 6 | Expired |
| US4053753A | Electronic calculator with function keys | Physics | 6 | Expired |
| US4206458A | Numerical display system for electronic instrument | Physics | 5 | Expired |
| US4247902A | Display for electronic calculator | Performing Operations; Transporting | 3 | Expired |
| US3981000A | System for controlling a numeral display | Physics | 3 | Expired |
| US4344147A | Electronic calculator with printer | Physics | 2 | Expired |
| US4134536A | Electronic data processing equipment | Electricity | 2 | Expired |
| US4253088A | Electronic scheduler | Physics | 2 | Expired |
| US4288792A | Electronic apparatus with time-division drive | Physics | 1 | Expired |
| US4696048A | Input device | Physics | 1 | Expired |
| US4219808A | Numerical and non-numerical display system for a small calculator | Physics | 1 | Expired |
| US3956744A | Numeral output system for circulating register | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.