| Patent Number |
Title Of Patent |
Date Issued |
| 7608139 |
Erasable image forming material |
October 27, 2009 |
| An erasable image forming material is provided, which includes a binder resin, and a color former and a developer dispersed in the binder resin. The color former is amorphous. |
| 7569515 |
Erasable image forming material |
August 4, 2009 |
| An erasable image forming material includes a color former containing crystal violet lactone, a developer, a first binder resin of styrene-butadiene copolymer and a second binder resin of a styrene-based resin containing .alpha.-methylstyrene, the first and second binder resins being |
| 7378373 |
Erasable image forming material |
May 27, 2008 |
| An erasable image forming material includes a color former, a developer, a binder resin and 0.5 wt % or less of a plasticizer. The erasable image forming material exhibits improved erasure performance. |
| 7354885 |
Erasable image forming material |
April 8, 2008 |
| An erasable image forming material includes a color former containing crystal violet lactone, a developer, a first binder resin of styrene-butadiene copolymer and a second binder resin of a styrene-based resin containing a-methylstyrene, the first and second binder resins being in a |
| 7276465 |
Erasable image forming material |
October 2, 2007 |
| An erasable image forming material includes a color former, a developer, and a binder resin, the color former containing Crystal Violet Lactone and a specific fluorane compound can enhance light fastness as well as heat decolorizing performance. |
| 7208449 |
Decolorable image forming material |
April 24, 2007 |
| A decolorable image forming material contains a color former and a developer, that develop a colored state through interaction therebetween and can be decolored by heating or contact with a solvent, in which the developer contains two or more compounds whose deference in molecular we |
| 6375742 |
Apparatus for processing paper sheets to decolor an image formed thereon |
April 23, 2002 |
| A decoloring apparatus for an image forming material comprising means for bringing a solvent into contact with an image forming material formed on a paper sheet and containing a color former, a developer and a decolorizer, and means for removing a residual solvent from the paper sheet. |
| 6373575 |
Paper classification apparatus |
April 16, 2002 |
| A paper classification apparatus includes a heater for heating paper or a solvent supply unit for supplying a solvent to the paper, a detector, a computer, and a selector guide. The detector detects the reflection density of the paper after being heated or supplied with the solvent. The |
| 6329317 |
Decoloring method of decolorizable image forming material |
December 11, 2001 |
| A method of decoloring an image formed on a paper sheet by using an image forming material containing a color former, a developer and a decolorizer, comprising the steps of bringing a solvent into contact with the image forming material for decoloring the image, and removing the residual |
| 6326332 |
Decolorable material and method for decoloring the same |
December 4, 2001 |
| A decolorable material contains a color former, a developer, a matrix material, and a decolorant capable of physically or chemically adsorbing the developer, the developer having a molecular weight of 120 to 210. The material is capable of forming a clear image, and the image formed from |
| 6313066 |
Decolorable image forming material and decoloring method of the same |
November 6, 2001 |
| A decolorable image forming material containing a color former, a developer and a binder resin, in which the binder resin has a property that it is compatible with the color former when the material is in contact with a solvent and that it keeps the compatible state when the solvent is |
| 6277208 |
Method of decoloring an image forming material formed on a paper sheet |
August 21, 2001 |
| An image forming material formed on a paper sheet and containing a color former, a developer and a decolorizer, is decolored by heating of the image forming material, contacting the image forming material with a solvent optionally containing a decolorizer, and removing a residual sol |
| 6248692 |
Erasable image forming material |
June 19, 2001 |
| An erasable image forming material includes a color former, a developer, and a decolorizer and is erasable by contact with an erase solvent. Free energy .alpha. required for the decolorizer and the developer to form a complex and free energy .beta. required for the color former and the |
| 6203603 |
Erasable image forming material |
March 20, 2001 |
| An erasable image forming material includes a color former, a developer, a binder resin, and a polymer decolorizer having an electron donating group capable of physically or chemically adsorbing the developer. This polymer decolorizer is, e.g., a polymer compound having a sugar skeleton, |
| 6054222 |
Epoxy resin composition, resin-encapsulated semiconductor device using the same, epoxy resin mol |
April 25, 2000 |
| An epoxy resin composition comprising (a) an epoxy resin, (b) a curing agent, (c) a cure accelerator and (d) silica powder. The silica powder (d) is composed of (d1) a first silica powder having a particle diameter ranging from 5 to 75 .mu.m, (d2) a second silica powder having a particle |
| 6045208 |
Ink-jet recording device having an ultrasonic generating element array |
April 4, 2000 |
| An ink-jet recording apparatus records an image onto a recording medium by flying an ink-droplet from an ink surface by a pressure of an ultrasonic beam. The apparatus including an ultrasonic generating element array having a plurality of ultrasonic elements arranged in an array for |
| 6017386 |
Decolorizable ink and printer |
January 25, 2000 |
| A decolorizable image forming material comprising a color former, a developer and a decolorizer, the decolorizer comprising a highly amorphous phase separation inhibitor and a slightly amorphous phase separation inhibitor. A cyclic sugar alcohol is used as the highly amorphous phase |
| 6010808 |
Rewritable thermal recording medium and recording method |
January 4, 2000 |
| A rewritable thermal recording medium of this invention uses a recording material which reversibly changes between an equilibrium state and a quasi-equilibrium state different in color condition from the equilibrium state when a predetermined heat treatment is performed. This rewritable |
| 5922115 |
Decolorizable ink and printer |
July 13, 1999 |
| Decolorizable ink consisting of an ink composition dispersed in a solvent, the ink composition comprising a color former, a developer and a decolorizer, wherein the color former and developer are in a colored state by interaction between them and the decolorizer has a property to dissolv |
| 5912679 |
Ink-jet printer using RF tone burst drive signal |
June 15, 1999 |
| A driving circuit controls a time for applying a drive signal to a piezoelectric element so as to bring a control in the number of ink droplets squirted from a liquid surface of liquid ink according to a gray scale level of an image to be printed on a printed object. According to app |
| 5849651 |
Reversible thermal recording medium |
December 15, 1998 |
| A reversible thermal recording medium comprises a composition containing a color former, a developer, a reversible material capable of reversibly changing the state of the composition by supplying heat energies with two different values, and, as required, a phase separation controller wh |
| 5699097 |
Display medium and method for display therewith |
December 16, 1997 |
| A method for display on a display medium is disclosed which comprises a step of applying an electric field to a display medium provided with an image forming medium composed of a thermally fusible material and minute charging particles dispersed therein, a step of applying heat to the |
| 5663115 |
Thermal recording medium and recording method |
September 2, 1997 |
| A thermal recording medium comprising a color former, a developer and a reversible material which can effect a reversible change in at lease a part of a composition system where thermal energies with two different values are supplied or where two different heat histories are provided, |
| 5619234 |
Ink-jet recording apparatus which allows shifting or changing of ink position or direction |
April 8, 1997 |
| An ink-jet recording apparatus which includes a recording medium for carrying an electrostatic image, an ink-ejecting section opposing the recording medium and located in non-contact state with respect to the recording medium medium, and having an ink holding section for holding ink |
| 5400154 |
Hybrid interpolation and non-interpolation method and apparatus for image enlarging and contract |
March 21, 1995 |
| Image data is processed to enlarge and contract an original image, represented by the data, by P times in an X-axis direction while the data is subjected to interpolation. The letter P denotes an arbitrary positive rational number. It is supposed that each of regions among pixels of the |
| 5328746 |
Thermal transfer recording medium |
July 12, 1994 |
| A thermal transfer recording medium includes a sheet-like base member and a hot-melt ink layer containing a colorant and a hot-melt material. The hot-melt ink layer contains a hot-melt material having a melting point Tm of 70.degree. to 90.degree. C., a complex elastic modulus of 10.sup. |
| 5136389 |
Image sensor driving method with high-speed voltage response |
August 4, 1992 |
| A method for driving an image sensor, the image sensor including a pair of first and second main electrodes fabricated on a semiconductor layer in such a manner that the first and second main electrodes are separated with each other via a light receiving region. An insulating layer is st |
| 4860109 |
Image processing apparatus |
August 22, 1989 |
| An image processing apparatus includes a memory having a first region and a second region. The first memory region holds original image data. A first calculation device calculates addresses of segments of the first memory region. A second calculation device calculates addresses of segmen |
| 4803375 |
Image sensors and methods of manufacturing same including semiconductor layer over entire substr |
February 7, 1989 |
| An image sensor, comprising a semiconductor layer formed on at least a first region of a substrate; first electrodes arranged in line and electrically connected to the semiconductor layer of said first region; and second electrodes arranged in line and electrically connected to said |
| 4755859 |
Thin film static induction transistor and method for manufacturing the same |
July 5, 1988 |
| A thin film static induction transistor comprises a first n type semiconductor layer provided on an insulative substrate and a second n type semiconductor layer mounted on the first layer. The second layer includes a first region having a first level top wall and a second region havi |
| 4671853 |
Image sensor manufacturing method |
June 9, 1987 |
| In a method of manufacturing image sensors, an electrode layer of an opaque metal material is formed on a transparent ceramic substrate and is patterned into individual electrodes in photoengraving process. An amorphous semiconductor layer is deposed over the electrodes formed on the |
