CASIO ELECTRONICS MANUFACTURING CO., LTD.
87Patents
31Active
87Granted
43Portfolio score
Filing activity: Mar 12, 1984 → May 12, 2014 · 2 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6021257A | Merged image print out system and method therefor | Physics | 60 | Expired |
| US5128724A | Developer restoring unit in an image forming apparatus | Physics | 41 | Expired |
| US5241349A | Image forming apparatus having a plurality of control modes of thermal fixing apparatus | Physics | 38 | Expired |
| US5294962A | Contact-type electroconductive brush for electrically charging an image carrier of an image forming apparatus | Physics | 38 | Expired |
| US6111658A | Dither method and printing apparatus | Physics | 34 | Expired |
| US4774544A | Counter apparatus for an image forming apparatus for counting and managing the number of image forming operations | Electricity | 33 | Expired |
| US5104245A | Printing apparatus with form editor | Physics | 29 | Expired |
| US5781841A | Toner collector and image forming unit having toner collector bag | Physics | 27 | Expired |
| US5068904A | Image memory circuit for use in a rotation of image data | Electricity | 25 | Expired |
| US5121521A | Mechanism for opening and closing an openable apparatus | Fixed Constructions | 24 | Expired |
| US4634259A | Apparatus for maintaining distinct edges between two colors in a two-color image forming device | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4641156A | Recording apparatus with double frequency driven liquid crystal shutter | Electricity | 23 | Expired |
| US5970286A | Image forming apparatus and image forming unit with an improved phase adjustment means | Physics | 22 | Expired |
| US5177544A | Image forming apparatus capable of detecting a residual amount of cut paper | Performing Operations; Transporting | 21 | Expired |
| US5873016A | Belt cleaning apparatus and image forming apparatus using the same | Physics | 20 | Expired |
| USD424608S | Photosensitive drum casing for an electronic copying machine | General | 18 | Expired |
| US8870327B2 | Three-dimensional printing device, three-dimensional printing system and three-dimensional printing method | Physics | 18 | Active |
| US6463231B2 | Printer device | Physics | 17 | Expired |
| US4739367A | Image forming apparatus having a control means for effecting control of a preliminary processing of image formation | Physics | 17 | Expired |
| US5384836A | Facsimile apparatus automatically registrable of identification name | Electricity | 17 | Expired |
| US5808649A | Image forming apparatus for color image forming | Physics | 16 | Expired |
| USD284864S | Electronic copying machine | General | 15 | Expired |
| US4819186A | Waveform generating apparatus for driving liquid crystal device | Physics | 14 | Expired |
| US5909539A | Image generating system and method | Physics | 14 | Expired |
| US4745430A | Malfunction detecting device in use for the fixing device of an image-forming apparatus | Physics | 14 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.