Masayasu Anzai
38Patents
13h-index
60Co-inventors
84Inventor score
Filing activity: Aug 23, 1974 → Sep 30, 1999
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4467334A | Laser beam printer | Physics | 37 | Expired |
| US4416533A | Nonimpact printer | Physics | 35 | Expired |
| US5832350A | Developing apparatus and color electrophotographic apparatus using the same | Physics | 32 | Expired |
| US4926248A | Scanning recording type printing method and apparatus for increasing image quality by controlling tone dot locations within image pixels | Electricity | 30 | Expired |
| US5923933A | Electrophotographic apparatus | Physics | 26 | Expired |
| US5600405A | Bias cleaning system and electrostatic printing apparatus therewith and operating method thereof | Physics | 26 | Expired |
| US4270487A | Developer regulating device in developing apparatus | Physics | 20 | Expired |
| US5453822A | Optional side multi-toner image forming apparatus using intermediate transfer member | Physics | 18 | Expired |
| US5630201A | Development apparatus having a plurality of rolls rotated at particular speeds | Physics | 17 | Expired |
| US5848323A | Apparatus for printing images on both sides of an image printing medium by one process | Physics | 14 | Expired |
| US5481351A | Electrophotographic recording apparatus having improved residual toner cleaning function | Physics | 14 | Expired |
| US5237377A | Cleaning device for dry electrophotographic device | Physics | 13 | Expired |
| US3990793A | Developing station for electronic color photographing apparatus | Physics | 13 | Expired |
| US4572651A | Method for developing an electrostatic latent image in an electrophotographic recording apparatus | Physics | 13 | Expired |
| US6032015A | Apparatus for printing on both sides of an image printing medium by one process | Physics | 12 | Expired |
| US4545325A | Developing apparatus | Physics | 12 | Expired |
| US4314257A | Thermomagnetic recording apparatus | Physics | 11 | Expired |
| US5701560A | Image forming apparatus having a photosensitive body formed of a base material consisting of As.sub.2 Se.sub.3 or a-Si and a method | Physics | 11 | Expired |
| US5659841A | Electrostatic recording control method and electrostatic recording apparatus | Physics | 9 | Expired |
| US5416571A | Developing device for electrophotograph-type printer | Physics | 9 | Expired |
| US4822702A | Method for forming multi-color toner image | Physics | 8 | Expired |
| US4769672A | Electrophotographic process | Physics | 7 | Expired |
| US5579096A | Imaging apparatus and method for cleaning transfer/conveyer means | Physics | 7 | Expired |
| US4052206A | Electrophotography | Physics | 7 | Expired |
| US5869214A | Color image forming apparatus and color image forming method thereof | Physics | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.