BROTHER KOGYO KABUSHIKI KAISHA
17,704Patents
13,316Active
17,704Granted
61Portfolio score
Filing activity: Feb 18, 1976 → Mar 12, 2025 · 3,671 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6310694A | Mail transmission system with cancel mail sending function | Electricity | 620 | Expired |
| US5126618A | Longitudinal-effect type laminar piezoelectric/electrostrictive driver, and printing actuator using the driver | Electricity | 368 | Expired |
| US4677565A | Automatic vending system | Physics | 359 | Expired |
| US4654799A | Software vending system | Physics | 327 | Expired |
| US5059266A | Apparatus and method for forming three-dimensional article | Physics | 318 | Expired |
| US4674055A | Software vending system | Physics | 310 | Expired |
| US5105117A | Ultrasonic motor | Electricity | 287 | Expired |
| US5252775A | Automatically up-dated apparatus for generating music | Physics | 243 | Expired |
| US5774672A | Data transmission system for distributing video and music data | Electricity | 225 | Expired |
| US5889517A | Multi-window display control system | Physics | 201 | Expired |
| US5228118A | Printing system wherein one of printer drivers through which print data is sent from a data processor to a printer is selected based on interpreters available on the printer | Physics | 195 | Expired |
| US4927278A | Tape cassette and tape printer for use therewith | Performing Operations; Transporting | 167 | Expired |
| US6563626B1 | Display device | Physics | 164 | Expired |
| US5149548A | Apparatus for forming three-dimension article | Physics | 163 | Expired |
| US6445802B1 | Sound volume controllable communication apparatus | Electricity | 161 | Expired |
| US5188469A | Tape feed cassette with tape cutter and guide | Performing Operations; Transporting | 161 | Expired |
| US4980856A | IC memory cartridge and a method for providing external IC memory cartridges to an electronic device extending end-to-end | Emerging Cross-Sectional Technologies | 155 | Expired |
| US5402159A | Piezoelectric ink jet printer using laminated piezoelectric actuator | Performing Operations; Transporting | 143 | Expired |
| US6041203A | Process unit, photosensitive member cartridge, developer cartridge, and image forming apparatus | Physics | 142 | Expired |
| US5653542A | Tape cassette | Performing Operations; Transporting | 141 | Expired |
| US4966476A | Tape printer | Performing Operations; Transporting | 136 | Expired |
| US6823160B2 | Developing device and image forming apparatus having a gear holder | Physics | 136 | Expired |
| US5140937A | Apparatus for forming three-dimensional article | Physics | 134 | Expired |
| US5748352A | Optical scanning device | Physics | 130 | Expired |
| US5348406A | Tape feed mechanism with tape cutter and guide | Performing Operations; Transporting | 129 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.