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In 1879, Auguste Bartholdi received design patent number 11,023 titled "Design for a Statue". It was for the Statue of Liberty.
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| Number | Title | Issue Date |
| 5070374 | Color image forming apparatus A color image forming apparatus includes an image reader which reads an image of an original by scanning the original and separating the scanned image into at least two colors, an image processor which processes the output of the image reader to output at... | 12/03/1991 |
| 5070367 | Color image forming apparatus with an automatic color selection mode A color image forming apparatus includes an image reading section which reads an image by scanning it and separating the colors of the image into a plurality of colors; and image processing section which processes the output of the image reading section a... | 12/03/1991 |
| 5065233 | Color image forming apparatus A color image forming apparatus comprises developing units each of which contains a developer of each of three primary colors, and another developing unit containing a white developer. An image on the original is subjected to color separation to obtain im... | 11/12/1991 |
| 5038171 | Multicolored image forming method and apparatus therefor An image forming method and an apparatus therefor for forming a reproduced color image on a recording medium by repeating a process of forming on a latent image carrier an electrostatic latent image corresponding to a document image through an image expos... | 08/06/1991 |
| 5025323 | Deveoloping unit switching device for a printer An improved developing unit switching device for a printer capable of providing a multicolor copy from one formation of latent electrostatic images comprises a photoreceptor drum on which the latent electrostatic images are formed; a rotary encoder for de... | 06/18/1991 |
| 5014093 | Color copying apparatus and method with improved productivity Apparatus and method are described for copying with high productivity a mixed batch of originals containing for example process color originals accent color originals and/or single color originals such as black. A scanner scans the originals for color con... | 05/07/1991 |
| 4928136 | Image forming apparatus An image forming apparatus which comprises a photoreceptor medium supported for rotation in one direction, a charging device for forming an electrostatic latent image on the photoreceptor medium, a plurality of developing devices disposed in fact-to-face ... | 05/22/1990 |
| 4910535 | Image forming apparatus An image forming apparatus wherein a toner image obtained by developing a first electrostatic latent image with a first color dry toner by a first developing device and a toner image obtained by developing a second electrostatic latent image with second c... | 03/20/1990 |
| 4847658 | Image forming apparatus and image forming method employed therefor An image forming apparatus for use in an electrophotographic copying process and an image forming method for the apparatus, which are arranged to reproduce an image portion of an original document by a black developing material on a white paper sheet when... | 07/11/1989 |
| 4803516 | Color image forming apparatus with color information detection An image forming apparatus includes an optical system for forming a latent image corresponding to an image of a document placed on a document table and a plurality of developing units for developing the latent image using toners having different colors. A... | 02/07/1989 |
| 4711553 | Image forming apparatus with a plurality of colors According to the invention, the colors of an original image are identified by a photoelectrically converting device that is movable in, e.g., the optical path of an optical system, developing units containing different color toner agents that are selectiv... | 12/08/1987 |
