Takashi Nagashima
55Patents
12h-index
114Co-inventors
87Inventor score
Filing activity: Dec 9, 1975 → Nov 5, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5577032A | Broadcast service system | Electricity | 51 | Expired |
| US4530588A | Mount for a rotating drum and a developer within an electrostatic copying apparatus | Physics | 32 | Expired |
| US7176881B2 | Presentation system, material presenting device, and photographing device for presentation | Physics | 22 | Expired |
| US5408282A | Projection system for projection TV set | Electricity | 22 | Expired |
| US5145160A | Sheet sending apparatus | Physics | 19 | Expired |
| US4236228A | Memory device for processing picture images data | Physics | 18 | Expired |
| US4907171A | Image size converter | Physics | 17 | Expired |
| US5957545A | Fluid holding vehicle reservoir for preventing leakage of fluid | Performing Operations; Transporting | 17 | Expired |
| US5144366A | Cooling system for use in an image forming machine | Physics | 15 | Expired |
| US6105611A | Reservoir tank | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5607207A | Hydraulic braking pressure control apparatus for automotive vehicle | Performing Operations; Transporting | 14 | Expired |
| US4036534A | Anti-skid control apparatus with booster device and pressure reducing device | Performing Operations; Transporting | 12 | Expired |
| US5460350A | Electromagnetic valve device | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US5339137A | Image forming apparatus | Physics | 12 | Expired |
| US4939047A | Molded saddle for storage battery plates, storage battery container, and storage battery | Emerging Cross-Sectional Technologies | 12 | Expired |
| US7027041B2 | Presentation system | Physics | 10 | Expired |
| USD366278S | Toner cartridge | General | 10 | Expired |
| US4523754A | Paper guiding device in a copying apparatus | Performing Operations; Transporting | 9 | Expired |
| US4933716A | Film carrier | Physics | 9 | Expired |
| US5418603A | Image forming apparatus capable of evaluating image forming performance | Electricity | 8 | Expired |
| US4533233A | Electrostatic copying apparatus | Physics | 8 | Expired |
| US4022514A | Anti-skid brake control system | Performing Operations; Transporting | 8 | Expired |
| US4793923A | Gradient density filter medium | Performing Operations; Transporting | 8 | Expired |
| US4879578A | Paper feeding device and a paper guiding device in a copying apparatus | Performing Operations; Transporting | 7 | Expired |
| US4750786A | Brake pressure control system of vehicle load responsive type | Performing Operations; Transporting | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.