Junichi Kato
128Patents
22h-index
201Co-inventors
93Inventor score
Filing activity: Apr 4, 1984 → Aug 24, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6392525B1 | Magnetic element and method of manufacturing the same | Electricity | 109 | Expired |
| US6337964B2 | Agitating member, developing apparatus and process cartridge | Physics | 45 | Expired |
| US5460571A | Electro-magnetically shielded ventilation system | Mechanical Engineering; Lighting; Heating | 42 | Expired |
| US5765077A | Charging member, charging device and process cartridge detachably mountable to image forming apparatus | Physics | 39 | Expired |
| US6888435B2 | Composite magnetic body, and magnetic element and method of manufacturing the same | Emerging Cross-Sectional Technologies | 36 | Expired |
| US5519472A | Developing apparatus using elastic blade | Physics | 34 | Expired |
| US6051860A | Nonvolatile semiconductor memory device and method for fabricating the same and semiconductor integrated circuit | Electricity | 33 | Expired |
| US6128462A | Cleaning member, image forming apparatus provided with a cleaning blade member, and process cartridge detachably attachable on the image forming apparatus | Physics | 33 | Expired |
| US5264902A | Image forming device | Physics | 33 | Expired |
| US5353104A | Defining member for defining thickness of one-component developer and developing device equipped with it | Physics | 31 | Expired |
| US6784782B2 | Composite magnetic body, and magnetic element and method of manufacturing the same | Emerging Cross-Sectional Technologies | 30 | Expired |
| US5066979A | Color image forming apparatus wherein plural colors can be formed through one printing cycle | Physics | 28 | Expired |
| US7219416B2 | Method of manufacturing a magnetic element | Emerging Cross-Sectional Technologies | 28 | Expired |
| US6175703A | Image forming apparatus and process cartridge | Physics | 25 | Expired |
| US5646718A | Cleaning blade for use in electrophotography, process cartridge and image forming apparatus | Physics | 24 | Expired |
| US5036424A | Multilayer ceramic capacitive element | Emerging Cross-Sectional Technologies | 24 | Expired |
| US5038174A | Image forming apparatus having a ventilated image forming unit | Physics | 24 | Expired |
| US4586972A | Method for making multilayer ceramic body | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5682585A | Developing apparatus generating electric field between developer carrying member and developer layer regulating member | Physics | 23 | Expired |
| US6169869A | Image forming apparatus and process cartridge | Physics | 23 | Expired |
| US5455603A | Image forming apparatus with feeder control based on pixel conversion status | Physics | 22 | Expired |
| US5790927A | Charging member and process cartridge having same | Physics | 22 | Expired |
| US5543899A | Charging member having a foamed layer of a material with specified density and pore properties, charging device, process cartridge and image forming apparatus featuring the charging member | Physics | 21 | Expired |
| US6380585B1 | Nonvolatile semiconductor device capable of increased electron injection efficiency | Electricity | 20 | Expired |
| US5463410A | Image recording apparatus using optical beam | Physics | 17 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.