Toshiaki Nagashima
102Patents
22h-index
44Co-inventors
90Inventor score
Filing activity: Dec 11, 1987 → Jan 3, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5262802A | Recording head assembly with single sealing member for ejection outlets and for an air vent | Chemistry; Metallurgy | 107 | Expired |
| US4931838A | Developing apparatus and process cartridge having the same | Emerging Cross-Sectional Technologies | 59 | Expired |
| US6178302A | Developer container seal, developer container, developing apparatus, process cartridge, and image forming apparatus | Physics | 54 | Expired |
| US8565649B2 | Developer supply container and developer supplying system | Physics | 53 | Active |
| US7412192B2 | Developer supply container | Physics | 51 | Active |
| US7266330B2 | Developer supply container with shutter movement prevention feature | Physics | 39 | Expired |
| US5832343A | Toner supply method, toner accommodation container, process cartridge and electrophotographic image forming apparatus | Physics | 36 | Expired |
| US5593068A | Toner supply apparatus and toner cartridge therefor | Emerging Cross-Sectional Technologies | 33 | Expired |
| US9354549B1 | Developer supply container, developer supplying apparatus and image forming apparatus | Physics | 32 | Active |
| US9229368B2 | Developer supply container and developer supplying system having pump operated developer discharge | Physics | 31 | Active |
| US6219506A | Disassembling method for toner accommodating container | Physics | 31 | Expired |
| US5778282A | Developer supplying container, developing device having same and process cartridge | Physics | 30 | Expired |
| US7325385B2 | Toner container manufacturing method | Performing Operations; Transporting | 30 | Expired |
| US7848685B2 | Developer supply container and developer supplying system | Physics | 30 | Expired |
| US10209667B2 | Developer supply container and developer supplying system | Physics | 27 | Active |
| US5491542A | Developer supplying container and assembling method thereof | Emerging Cross-Sectional Technologies | 27 | Expired |
| US6118958A | Sealing member, sealing member mounting method, developing apparatus, process cartridge, process cartridge remanufacturing method and image forming apparatus | Physics | 26 | Expired |
| US5244087A | Container for accommodating ink jet head cartridge | Performing Operations; Transporting | 25 | Expired |
| US5850238A | Recording head with cover | Chemistry; Metallurgy | 23 | Expired |
| US8160471B2 | Developer supply container | Physics | 23 | Active |
| US5649270A | Developer container with low shutter opening/closing resistance | Physics | 22 | Expired |
| US5802431A | Collapsible toner container | Emerging Cross-Sectional Technologies | 22 | Expired |
| US6482090B1 | Computer readable recording medium recording a program of a ball game and the program, ball game processing apparatus and its method | Human Necessities | 20 | Expired |
| US8649711B2 | Developer supply container | Physics | 20 | Active |
| US7957679B2 | Developer supply container | Physics | 20 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.