Minoru Masuda
81Patents
13h-index
106Co-inventors
87Inventor score
Filing activity: Apr 25, 1989 → Dec 14, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5721083A | Dry color toner for electrophotography and production process thereof | Physics | 40 | Expired |
| US5102731A | Recording medium | Emerging Cross-Sectional Technologies | 28 | Expired |
| US6818369B2 | Toner for electrostatic image development and image forming method and apparatus using the toner | Physics | 28 | Expired |
| US6828075B2 | Carrier for electrophotography and developer using the same | Physics | 24 | Expired |
| US6770411B2 | Negatively chargeable toner | Physics | 21 | Expired |
| US6424433B1 | Original reader | Electricity | 21 | Expired |
| US5453852A | Paper feed roller structure for image reading apparatus | Emerging Cross-Sectional Technologies | 20 | Expired |
| US6861191B2 | Dry toner for developing electrostatic images | Physics | 19 | Expired |
| US7169522B2 | Toner for developing a latent electrostatic image, developer using the same, full-color toner kit using the same, image-forming apparatus using the same, image-forming process cartridge using the same and image-forming process using the same | Physics | 17 | Expired |
| US7024140B2 | Toner feeder, toner, and electrophotographic image forming apparatus using the toner feeder and toner | Physics | 16 | Expired |
| US5573338A | Automatic paper feeder and frame structure of document input device | Electricity | 16 | Expired |
| US7759036B2 | Toner and production method thereof, image forming apparatus and image forming method, and process cartridge | Physics | 14 | Active |
| US5537219A | Movable image reading apparatus | Emerging Cross-Sectional Technologies | 13 | Expired |
| US7539708B2 | Backup system, backup controlling apparatus, backup data managing method and a computer readable recording medium recorded thereon backup controlling program | Emerging Cross-Sectional Technologies | 13 | Expired |
| US7522857B2 | Toner, image forming apparatus using the same and process cartridge | Physics | 12 | Active |
| US7183029B2 | Dry toner, toner kit, and image forming apparatus and process cartridge using the dry toner | Physics | 11 | Expired |
| US5606430A | Image reading apparatus having projections on surface of hopper near side edges of paper feed path to prevent close contact and reduce static electricity | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5628575A | Automatic paper feeder and frame structure of document input device | Electricity | 9 | Expired |
| US5330824A | Image protecting film and image protecting method | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5491567A | Image reading apparatus | Emerging Cross-Sectional Technologies | 9 | Expired |
| US8211610B2 | Carrier for use in developer developing electrostatic image, developer using the carrier, and image forming method and apparatus and process cartridge using the developer | Physics | 8 | Active |
| US7985518B2 | Toner, image forming apparatus using the same, and image forming method | Physics | 7 | Active |
| US7658374B2 | Sheet feeder | Performing Operations; Transporting | 6 | Active |
| US8201823B2 | Sheet feeding apparatus | Performing Operations; Transporting | 6 | Active |
| US5537225A | Attachment of a light source in an image reading apparatus | Emerging Cross-Sectional Technologies | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.