Junji Watanabe
151Patents
20h-index
99Co-inventors
93Inventor score
Filing activity: Dec 2, 1982 → Sep 15, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4894706A | Three-dimensional packaging of semiconductor device chips | Emerging Cross-Sectional Technologies | 68 | Expired |
| US5287164A | Paper tray capable of simultaneously holding sheets of different sizes | Performing Operations; Transporting | 41 | Expired |
| US4623937A | Scanning apparatus | Electricity | 33 | Expired |
| US4577849A | Multiple source paper conveyor system | Performing Operations; Transporting | 32 | Expired |
| US4569608A | Printing apparatus with automatically interchangeable ribbon cartridges | Performing Operations; Transporting | 31 | Expired |
| US4589035A | Multiple copy image forming apparatus and method | Electricity | 30 | Expired |
| US4666288A | Image forming apparatus with area selection and confirmation | Physics | 27 | Expired |
| US4702631A | Thermal ribbon cassette and housing therefore | Performing Operations; Transporting | 27 | Expired |
| US4647180A | Developing device and electronic copying apparatus | Emerging Cross-Sectional Technologies | 27 | Expired |
| US4653899A | Image forming apparatus with area selection and preservation functions | Physics | 27 | Expired |
| US4534643A | Image forming apparatus | Performing Operations; Transporting | 26 | Expired |
| US5270841A | Image reading apparatus | Electricity | 25 | Expired |
| US4649437A | Picture image forming apparatus | Electricity | 24 | Expired |
| US4685794A | Image forming apparatus | Physics | 24 | Expired |
| US4914867A | Apparatus for processing end face optical fiber connector | Performing Operations; Transporting | 23 | Expired |
| US4595273A | Copying apparatus and method automatically sequentially copying two different pages of a document | Physics | 23 | Expired |
| US5007209A | Optical fiber connector polishing apparatus and method | Performing Operations; Transporting | 23 | Expired |
| US4742240A | Image reading apparatus with imaging means imaging separate and distinct rows of a document | Electricity | 22 | Expired |
| US4690543A | Image forming apparatus with a plurality of colors | Physics | 22 | Expired |
| US4699501A | Image forming apparatus with an operation panel control function | Physics | 22 | Expired |
| US4695151A | Image forming apparatus | Physics | 20 | Expired |
| US5091746A | Image forming apparatus in which editing content for masking, trimming, and the like is set in advance by separate setting unit and image formation is performed in accordance with editing content set by setting unit | Electricity | 19 | Expired |
| US4831457A | Image forming apparatus | Electricity | 19 | Expired |
| US4586808A | Optical system drive for image formation apparatus | Physics | 19 | Expired |
| US4616236A | Image forming apparatus with color transfer material | Electricity | 19 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.