Masaru Takeuchi
95Patents
14h-index
88Co-inventors
87Inventor score
Filing activity: Mar 15, 1977 → Jun 30, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD449817S | Inverter | General | 63 | Expired |
| US4626878A | Semiconductor optical logical device | Electricity | 37 | Expired |
| US4599576A | Insulated gate type field effect semiconductor device and a circuit employing the device | Electricity | 33 | Expired |
| US5737096A | Light illumination assembly having a tapered light guide plate for an optical reading unit | Physics | 28 | Expired |
| US4689438A | Photovoltaic device | Emerging Cross-Sectional Technologies | 25 | Expired |
| US5837568A | Manufacturing method of semiconductor devices | Electricity | 23 | Expired |
| US5532942A | Automatic apparatus for inspecting powdery product | Physics | 23 | Expired |
| USD455121S1 | Inverter | General | 22 | Expired |
| US4071973A | Method of artificially growing edible fungi | Human Necessities | 21 | Expired |
| US5526215A | Secondary cell protection unit for protecting a secondary cell from overdischarge or overcharge without excessive power consumption | Electricity | 20 | Expired |
| US4976540A | Method for detecting colored foreign particles in light-colored powder and system therefor | Physics | 19 | Expired |
| US6549887B1 | Apparatus capable of processing sign language information | Physics | 17 | Expired |
| US5617010A | Overcharge and overdischarge protection for a chargeable electric cell operable with a reduced current consumption | Electricity | 17 | Expired |
| US6485873B1 | Electrophotographic photoconductor and electrophotographic apparatus | Physics | 16 | Expired |
| US5705913A | Overdischarge detection device and overdischarge prevention device for a chargeable electric cell, operable with a variable threshold voltage to prohibit discharge in accordance with relative weight of a load | Electricity | 14 | Expired |
| US5423216A | Apparatus for automatically determining bulk specific gravity of powdery product | Physics | 12 | Expired |
| US7648224B2 | Inkjet recording apparatus | Performing Operations; Transporting | 12 | Active |
| US7614738B2 | Image recording apparatus | Performing Operations; Transporting | 10 | Active |
| US8542416B2 | Image processing apparatus | Electricity | 10 | Active |
| US8542415B2 | Image processing apparatus | Electricity | 10 | Active |
| US6716254B2 | Mechanism that separates a top sheet from sheets stacked on a hopper | Performing Operations; Transporting | 9 | Expired |
| US7475357B2 | Program, method and apparatus for operating objects displayed on a display | Physics | 8 | Active |
| USD454838S1 | Inverter | General | 8 | Expired |
| US4841328A | Electrostatic recording apparatus | Physics | 8 | Expired |
| US7725071B2 | Both side printable printer | Performing Operations; Transporting | 8 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.