Bizarre Patents
Pillow with retractable umbrella
A pillow assembly having a supporting assembly and a retractable umbrella assembly that is easily transportable and allows a user to support his/her head while covering their face from sunlight.
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| Number | Title | Issue Date |
| 7277666 | Developing apparatus with two toner-supplying bodies that periodically coact A developing apparatus includes a developing roller, a toner-supplying roller, and at least one toner-supplying member. The developing roller develops an electrostatic latent image formed on a photoconductive drum with toner. The toner-supplying roller is formed of ... | 10/02/2007 |
| 7209683 | Charging roller featuring specified ratio of storage elastic modulus and dynamic viscoelasticity values and process cartridge and electrophotographic apparatus featuring the same Charging roller has at least a support member and a conductive covering member, the charging roller where a value of tan δ expressed in a ratio of a storage elastic modulus and a loss elastic modulus by dynamic viscoelasticity in a cross sectional direction of the ... | 04/24/2007 |
| 7133635 | Fusing unit used with a color laser printer A fusing unit used with a color laser printer includes a pair of rollers which heat and press a sheet of paper, onto which an image is transferred, and fuse the transferred image on the sheet of paper, and plastic mold bearings which rotatably support the rollers to... | 11/07/2006 |
| 6925274 | Developing device capable of preventing toner inside developing chamber from entering hopper A developing device 31 includes three shielding members 20 that divide an inner space of the developing device 31 into a developing chamber 23 and toner hopper chambers 21. The shielding members 20 in predetermined condition... | 08/02/2005 |
| 5937225 | Pixel counting toner or ink use monitor and pixel counting method for monitoring the toner or ink use A printer specific stream of bits is received, before or while the printing of a print job, and translated into a pixel count specific to the print job and indicative of the anticipated toner usage for the print job. This pixel count then is added to a gl... | 08/10/1999 |
| 5568232 | Image forming apparatus capable of removing toner fragments and shavings from a contact charging device by supplying a voltage to an image carrier to which the fragments and shavings are attracted An image forming apparatus including an electrostatic latent image carrier which has a first voltage of the same polarity as the charge characteristics of the electrostatic latent image carrier, a contact charging device which has a second voltage of the ... | 10/22/1996 |
| 5548387 | Reversal developing system preventing occurrence of image spots A reversal developing system using a photosensitive material that can be electrically charged into both a positive polarity and a negative polarity, and a DC voltage applied to the transfer roller has a polarity opposite to and more than 1.5 times as grea... | 08/20/1996 |
| 5406313 | Color image forming apparatus and method A first negative or positive latent electrostatic image is formed on a latent image bearing body with a first writing device, and developed with a monochromatic toner. A second latent image of the type different than the first latent image is formed by a ... | 04/11/1995 |
| 4998138 | Microfilm reader-printer A microfilm reader-printer which permits the setting of the number of pages of printing which exceeds a maximum number of pages of continuous printings of the printer body. The printer body outputs a completion signal to a device which sets the number of ... | 03/05/1991 |
| 4967235 | Image formation apparatus for displaying or recording a pre-selected image area of a film An image of a microfilm is projected on a screen by light emitted from a light source. A pair of cursors are provided on each of adjacent sides of the screen so that a desired area of the image displayed on the screen can be designated by moving the curso... | 10/30/1990 |
| 4890139 | Image forming apparatus An image forming apparatus capable of producing both a normal image and a reversal image, is provided with a photosensitive member, a charger for charging the photosensitive member, an optical system for forming an electrostatic latent image on the photos... | 12/26/1989 |
| 4885221 | Electrophotography apparatus and electrophtographic process for developing positive image from positive or negative film An electrophotography apparatus of the present invention includes a movable photoconductive drum capable of carrying an electrostatic latent image on its surface, and a plurality of electrophotographic process means located along a moving direction of the... | 12/05/1989 |
| 4873940 | Image developing device An image developing device for use in an electrophotographic copying apparatus or a printer includes a developing roller for supplying toner to a latent image formed on a latent image carrier to develop the latent image into a visible toner image. The ima... | 10/17/1989 |
| 4873552 | Reader-printer A reader-printer which can print a particular image area, which is selected from a whole image projected on a screen, in a desired position on copying paper. The image area which has been selected for hard-copying from the whole image on a screen is shift... | 10/10/1989 |
| 4857958 | Electronic copying apparatus having function of partially changing image reproduced from original image An electronic copying apparatus of this invention has a function of partially changing a tone of an image reproduced from an original image. In this apparatus, a predetermined range of an original placed on an original table is designated by a spot light ... | 08/15/1989 |
| 4843423 | Positive/negative image forming method and apparatus for electrophotographic image forming device An electrophotographic image forming apparatus having a photoreceptor for forming an electrostatic image thereon corresponding to an original, a main charger for uniformly charging the photoreceptor to a specific polarity interchangeable developer units e... | 06/27/1989 |
| 4835577 | Negative/positive microfilm discriminating system A negative-positive microfilm discriminating system for use in a microfilm reader/printer apparatus, comprising a sensor for detecting the densities at a plurality of spots within an image zone of a microfilm strip, and a control circuit for discarding a ... | 05/30/1989 |
| 4835569 | Electrophotographic copying machine for producing positive prints from both positive and negative originals The present invention relates to an electrophotographic copying machine which is capable of producing positive copies from both positive and negative originals. According to the invention, two units of developing apparatuses, each containing a toner with ... | 05/30/1989 |
| 4828953 | Method for the formation of outline images corresponding to the peripheral outlines of document's images The present invention relates to a method for forming an outline of an image. By this method, at first, an electrostatic latent image bearing member is charged and then irradiated to a negative image to form an electrostatic latent image. Thereafter, the ... | 05/09/1989 |
| 4821067 | Microfilm reader-printer having an image fermation device A microfilm reader-printer including an image formation device having an image baring roll, a charger, an exposure apparatus, an apparatus which carries out the normal development of the image bearing roll, an apparatus which carries out the inverted deve... | 04/11/1989 |
| 4821076 | Electro-static photo-copier machine The copying machine of the present invention is capable of executing a reversal image forming mode wherein a toner is only deposited onto a non-image portion of the latent image to visualize. When the reversal image forming mode is designated, a screen me... | 04/11/1989 |
| 4814834 | Electrophotographic apparatus An electrophotographic apparatus capable of operating both in a mode for obtaining a positive image from a negative original and in a mode for obtaining a positive image from a positive original and capable of constantly controlling the image density in e... | 03/21/1989 |
| 4806974 | Apparatus for reproducing a copy image according to either a positive original image or a negative original image A microfilm reader printer has a reader unit which projects a microfilm image onto a screen and a printer unit which reproduces copies of the microfilm image. The printer unit includes an optical device for forming the electrostatic image on a photorecept... | 02/21/1989 |
| 4794062 | Method for the formation of outline images corresponding to the peripheral outlines of document's images A method for forming an outline of an image. In this method, at first, an electrostatic latent image bearing member is charged and then irradiated to a positive image to form an electrostatic latent image. Thereafter, the irradiated member is re-charged w... | 12/27/1988 |
| 4789878 | Electrophotographic apparatus A electrophotographic apparatus capable of operating both in a mode for obtaining a positive image from a negative original and in a mode for obtaining a positive image from a positive original and capable of constantly controlling the image density in ei... | 12/06/1988 |
| 4772920 | Image forming apparatus An image forming apparatus includes a first developing device for developing a latent image on a photoconductive drum in a first mode and a second developing device for developing a latent image on the photoconductive drum in a second mode. A control mean... | 09/20/1988 |
| 4678314 | Image forming apparatus A microfilm reader printer has a reader unit which projects a microfilm image onto a screen and a printer unit which reproduces copies of the microfilm image. The printer unit has an optical device for forming an electrostatic image on a photoreceptor by ... | 07/07/1987 |
| 4659211 | Copying apparatus A copying apparatus capable of forming an electrostatic latent image in the form of a positive image and/or a negative image on a photosensitive member for obtaining a positive image copy by developing the electrostatic latent image, is characterized in t... | 04/21/1987 |
| 4627703 | Apparatus for forming images from positive and negative originals An image forming apparatus which is capable of forming a positive image either from a negative original or a positive original. The apparatus is provided with a device for preventing the non-image area of the photosensitive member from being developed by ... | 12/09/1986 |
| 4624547 | Image forming apparatus There is disclosed an image forming apparatus capable of image formation under optimum image forming conditions in response to the detected image density. The image forming apparatus has image forming unit for forming an image corresponding to an original... | 11/25/1986 |
| 4562130 | Method of forming composite images The invention relates to a method of forming composite images. After a first electrostatic latent image of positive image is formed on a photosensitive member, a scorotron charger is used to correct the potential of background area to an intermediate pote... | 12/31/1985 |
| 4527886 | Electrophotographic recording apparatus having both functions of copying and printing This invention relates to an electrophotographic copying and printing apparatus having copying function and printing function. An object of the invention is to provide an electrophotographic copying and printing apparatus comprising a photosensitive member hav... | 07/09/1985 |
| 4521097 | Electrophotographic image recording method and apparatus An electrophotographic method and apparatus for recording micrographic images as high resolution positive or reversal transparencies. Plural planar reusable electrophotographic plates are mounted for stepwise movement sequentially along a path for a cycle... | 06/04/1985 |
| 4496232 | Apparatus for and methods of making bimodal electrophotographic copies A bimodal electrophotographic apparatus and process which incorporates capabilities for making both positive and reversal copies. One surface of a layer of a zinc oxide coated paper, or the like, is given an initial electrostatic charge. The charged surfa... | 01/29/1985 |
| 4494859 | Modular reader/printer developer apparatus A reader/printer apparatus includes a main frame having an optical system for exposure of photocopy paper with the image on a film carrier in combination with an integrated modular developing station which is adapted to receive any one of a plurality of d... | 01/22/1985 |
| 4486088 | Method and apparatus for electrophotography capable of changing over images from positive to negative and vice versa A novel method and apparatus for electrophotography is disclosed which enables selection the mode of image formation among positive-positive, negative-positive and combinations thereof without any need of changing the polarity of developing toner. The pre... | 12/04/1984 |
| 4442191 | Electrophotographic copying process for producing a plurality of copies An electrophotographic copying process utilizes a photosensitive member for electrophotography which comprises a first and a second photoconductive layer which are sensitive to radiation of a first and a second wavelength region, respectively. The photose... | 04/10/1984 |
| 4440843 | Electrophotographic copying process for forming positive or negative images An electrophotographic copying process utilizes a photosensitive member for electrophotography which comprises a first and a second photoconductive layer which are sensitive to radiation of a first and a second wavelength region, respectively. The photose... | 04/03/1984 |
| 4433038 | Electrophotographic copying process involving simultaneous charging and imaging An electrophotographic copying process utilizes a photosensitive member for electrophotography which comprises a first and a second photoconductive layer which are sensitive to radiation of a first and a second wavelength region, respectively. The photose... | 02/21/1984 |
| 4388390 | Electrophotographic method for producing an image on dielectric film using ion generation An electrophotographic method, in which a dielectric film is contacted with a surface of a charged and exposed electrophotographic layer and said film is acted on by positive and negative ions of the same concentration from a source of ions, which settle ... | 06/14/1983 |
