Akio Nakajima
93Patents
19h-index
60Co-inventors
87Inventor score
Filing activity: Feb 15, 1974 → Apr 12, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4875173A | Image enlarging method and device | Physics | 103 | Expired |
| US5914132A | Pharmaceutical dosage form with multiple enteric polymer coatings for colonic delivery | Performing Operations; Transporting | 88 | Expired |
| US5440694A | Interface circuit for allowing receiving serial data input after receiving serial input suspension signal | Physics | 78 | Expired |
| US8422359B2 | Communication network control system and control method | Electricity | 55 | Active |
| US4751376A | Image reader with focus and magnification detection control | Electricity | 38 | Expired |
| US5608547A | Image forming apparatus having illumination direction altered for every plurality of readout operations with respect to one original | Electricity | 32 | Expired |
| US5481354A | Image forming apparatus | Electricity | 30 | Expired |
| US5859757A | Output driving circuit for use in DC stabilized power supply circuit | Physics | 26 | Expired |
| US6201674A | Direct-current stabilization power supply device | Physics | 26 | Expired |
| US5831471A | DC-stabilized power circuit | Physics | 25 | Expired |
| US4750044A | Image editor | Electricity | 24 | Expired |
| US5410419A | Facsimile machine capable of distinguishing copied image and received image | Electricity | 22 | Expired |
| US6043897A | Image forming apparatus | Electricity | 22 | Expired |
| US5625466A | Image forming apparatus providing landscape or portrait image format based on detected size of original | Electricity | 22 | Expired |
| US5283662A | Image reading apparatus controllable by external apparatus | Electricity | 21 | Expired |
| US6011877A | Apparatus and method for determining the directional orientation of a document image based upon the location of detected punctuation marks within the document image | Physics | 21 | Expired |
| US10303570B2 | Method and apparatus for managing data recovery of distributed storage system | Physics | 20 | Active |
| US5843479A | Bisacodyl dosage form with multiple enteric polymer coatings for colonic delivery | Performing Operations; Transporting | 19 | Expired |
| US5491557A | Image forming apparatus having a memory and two operating modes, and method of using same | Electricity | 19 | Expired |
| US5745253A | Image reading apparatus and method for reading images of different sizes of originals | Electricity | 18 | Expired |
| US4912567A | Image reader | Electricity | 16 | Expired |
| US5530560A | Image forming apparatus wherein images are formed on front and back faces of a paper such that they can be observed in a normal orientation | Electricity | 16 | Expired |
| US7913037B2 | Computer system for controlling allocation of physical links and method thereof | Physics | 16 | Active |
| US5033102A | Image reading apparatus capable of reading desired image areas | Electricity | 16 | Expired |
| US6144777A | Image forming apparatus having editing function | Electricity | 15 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.