Hiroshi Kubota
208Patents
22h-index
295Co-inventors
93Inventor score
Filing activity: Nov 26, 1980 → Apr 10, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6053769A | Coaxial connector | Electricity | 107 | Expired |
| US8559161B2 | Metallized film capacitor and case mold type capacitor including same | Emerging Cross-Sectional Technologies | 76 | Active |
| USD296435S | Microphone | General | 71 | Expired |
| US6538655B1 | Image processing system and image processing method | Physics | 64 | Expired |
| USD296100S | Microphone | General | 46 | Expired |
| USD302819S | Combined microphone and shielder | General | 45 | Expired |
| US6907551B2 | Fault notification method and related provider facility | Electricity | 42 | Expired |
| US6038149A | Lamp discharge lighting device power inverter | Emerging Cross-Sectional Technologies | 41 | Expired |
| US6746817B2 | Resist composition and patterning process | Emerging Cross-Sectional Technologies | 38 | Expired |
| US5118093A | Image-forming machine | Physics | 37 | Expired |
| US5052670A | Image-forming machine | Physics | 31 | Expired |
| USD296099S | Combined microphone and stand | General | 29 | Expired |
| USD299643S | Headphone-style microphone | General | 27 | Expired |
| US5144342A | Head for ink-jet printer | Performing Operations; Transporting | 27 | Expired |
| US6092369A | Catalyst deterioration-determining system for internal combustion engines using compressed natural gas | Emerging Cross-Sectional Technologies | 27 | Expired |
| US7771893B2 | Photomask blank, photomask and fabrication method thereof | Emerging Cross-Sectional Technologies | 27 | Active |
| USD464369S1 | Toner cartridge | General | 26 | Expired |
| US5347350A | Sheet feeder | Performing Operations; Transporting | 25 | Expired |
| US5969737A | Ink jet recording device with detachable ink cartridge and ink cartridge thereof | Emerging Cross-Sectional Technologies | 25 | Expired |
| US6901257B2 | Mobile communication system for performing hand-off control based on channel station data | Electricity | 24 | Expired |
| USD302158S | Combined microphone, stand and shielder | General | 23 | Expired |
| US5722002A | Latent electrostatic image developing device having a toner concentration detector | Physics | 22 | Expired |
| US5198833A | Variable density ink-jet dot printer | Performing Operations; Transporting | 21 | Expired |
| US5199695A | Cassette for feeding sheet materials | Performing Operations; Transporting | 20 | Expired |
| USD451127S | Toner cartridge | General | 18 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.