Kiyoshi Arai
43Patents
15h-index
73Co-inventors
84Inventor score
Filing activity: Nov 2, 1981 → Dec 9, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5544050A | Sign language learning system and method | Physics | 123 | Expired |
| US5887069A | Sign recognition apparatus and method and sign translation system using same | Physics | 100 | Expired |
| US5291065A | Semiconductor device and method of fabricating semiconductor device | Electricity | 61 | Expired |
| US5722295A | Injection-molded gear for engine and manufacturing method therefor | Emerging Cross-Sectional Technologies | 47 | Expired |
| US4399749A | Method and apparatus for controlling a thermal color printer | Electricity | 35 | Expired |
| US5761040A | Semiconductor device | Electricity | 29 | Expired |
| US4443121A | Thermal printing apparatus with reference gray scale comparator | Electricity | 26 | Expired |
| US6124466A | Nitroisourea derivative | Chemistry; Metallurgy | 26 | Expired |
| US4389935A | Method and apparatus for controlling a printer | Electricity | 25 | Expired |
| US5424579A | Semiconductor device having low floating inductance | Electricity | 25 | Expired |
| US5686758A | Semiconductor device having integral structure of case and external connection terminals | Electricity | 24 | Expired |
| US4975032A | Roots type blower having reduced gap between rotors for increasing efficiency | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US5767579A | Semiconductor device having an electrical connection between a control electrode and a resistive layer | Electricity | 18 | Expired |
| US5870099A | Method of supporting perspective projection | Physics | 17 | Expired |
| US4584601A | Circuit providing gamma, color and temperature compensation for thermal printer | Electricity | 16 | Expired |
| US4395146A | Method and apparatus for operating a thermal printer with uniform heat distribution | Performing Operations; Transporting | 15 | Expired |
| US6124859A | Picture conversion method and medium used therefor | Physics | 12 | Expired |
| US4822822A | Benzylamine derivatives, and use thereof | Human Necessities | 11 | Expired |
| US6841866B2 | Power semiconductor device | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7769209B2 | Biometric authentication method and biometric authentication apparatus | Physics | 7 | Active |
| US6552429B2 | Power switching semiconductor device with suppressed oscillation | Electricity | 7 | Expired |
| US5640378A | Disc recording apparatus for recording data in units of a full cluster | Physics | 6 | Expired |
| US7600806B2 | Attachment structure and attachment method for window glass and glass molding | Performing Operations; Transporting | 5 | Active |
| US7859079B2 | Power semiconductor device | Electricity | 3 | Active |
| US5530146A | Furobenzopyran derivatives, process for preparation of same and herbicides containing same as active components | Chemistry; Metallurgy | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.