"It is my heart-warmed and world-embracing Christmas hope and aspiration that all of us, the high, the low, the rich, the poor, the admired, the despised, the loved, the hated, the civilized, the savage (every man and brother of us all throughout the whole earth), may eventually be gathered together in a heaven of everlasting rest and peace and bliss, except the inventor of the telephone. "
Mark Twain ; Christmas greetings, 1890
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7442725 | Color changing correction fluid An improved color changing correction fluid is provided which includes either a volatile base or a volatile acid in combination with a color changing pH indicator, all in a water based fluid or system. As the fluid dries, the volatile base or acid evaporates along w... | 10/28/2008 |
| 7332109 | Thermally color-developing reversibly thermochromic pigment A thermally color-developing reversibly thermochromic pigment which shows a uniform color density in the coloring temperature range and also shows an optimal ΔH value within a range of from 3 to 40° C. Thermally color-developing reversibly thermochromic pigments o... | 02/19/2008 |
| 7294182 | Composition for water-removable ink The present invention provides a composition for water-removable ink with an effect of coupling retardation by using an aliphatic alcohol as a solvent, which is selected from a group comprising n-butyl alcohol, n-propyl alcohol, isopropyl alcohol and pentanol, so th... | 11/13/2007 |
| 7262318 | Substituted heteroaryl- and phenylsulfamoyl compounds The present invention is directed at substituted heteroaryl- and phenylsulfamoyl compounds, pharmaceutical compositions containing such compounds and the use of such compounds as peroxisome proliferator activator receptor (PPAR) agonists. PPAR alpha activators, phar... | 08/28/2007 |
| 7261404 | Process for printing using aqueous ink composition A process for printing flat substrate, in which the said substrate is printed with ink composition including a) a basic dye together with b) an aliphatic carboxylic acid having 4–24 carbon atoms, c) a pigment, d) a binder resin and water, yields water-resistant pr... | 08/28/2007 |
| 7246570 | Indication film for temperature and temperature distribution measurement and related method A method of determining temperature and temperature distribution over the surface of an object includes (a) applying a temperature sensitive film composed of material displaying change in color as a function of temperature on a surface of an object; and (b) comparin... | 07/24/2007 |
| 7226961 | Thermochromic golf ball Disclosed is a thermochromic golf ball with a one- or multi-piece structure, which comprises a thermochromic compound. The thermochromic golf ball reversibly changes between two different color states with temperature. The thermochromic golf ball may be white when i... | 06/05/2007 |
| 7208449 | Decolorable image forming material 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 deferen... | 04/24/2007 |
| 7141106 | Ink jet printing composition comprising a dye containing hydrazine or hydrazide A composition comprising: (a) a liquid medium; and (b) a compound comprising one or more chromophoric groups and one or more hydrazine or hydrazide groups; wherein the liquid medium comprises water and an... | 11/28/2006 |
| 7121215 | Security device for transporting and/or storing paper items of value A security device for transporting and/or storing paper items of value includes an enclosed area (1) for receiving the items of value. The enclosed area is associated with at least one reservoir (3) for an irreversible paper destruction product (4 | 10/17/2006 |
| 7083669 | Ink composition, inkjet recording method using the same and recorded matter The present invention provides an ink composition comprising at least: water; a cyan dye; and an aromatic compound having a carboxyl group and/or a salt thereof. Also disclosed are an inkjet recording method using the ink composition, and recorded matter recorded us... | 08/01/2006 |
| 7060654 | Imaging media and materials used therein A coating includes an antenna uniformly distributed in both a matrix and a leuco-dye phase of the coating. A method for preparing an imaging material includes providing a powder having an activator and an antenna, dissolving the activator/antenna powder to form an a... | 06/13/2006 |
| 6946168 | Reversibly thermochromic ultraviolet ray-hardening ink composition and reversibly thermochromic laminate using the same This invention provides a reversibly thermochromic ultraviolet ray-hardening type ink having good color change sensitivity and excellent light resistance and fastness, and a reversibly thermochromic laminate produced using the same. The present invention also provid... | 09/20/2005 |
| 6652959 | Marking particles Disclosed are marking particles comprising a resin, a chelating agent, and a spiropyran material which is of the formula ##STR1## The marking particles are prepared by an emulsion aggregation process.... | 11/25/2003 |
| 6500245 | Thermoresponsive coloring formulation for use on reimageable image carrier A thermoresponsive coloring formulation for use on a reimageable image carrier is provided. An image may be created by exposing the thermoresponsive coloring formulation to heat and erased by exposing it to white light. A screen coated with an uncured ste... | 12/31/2002 |
| 6395680 | Composition of aromatic carboxylic acid compounds and thermosensitive recording material using the same A composition includes at least two aromatic carboxylic acid compounds selected from the group consisting of aromatic carboxylic acid compounds of formulas (I), (II) and (III) as specified in the specification. A thermosensitive recording material has a s... | 05/28/2002 |
| 6383982 | Color developer composition, aqueous dispersion, recording sheet and color developing ink A color developer composition comprising (A) a color developer containing a polyvalent metal salt of a salicylic acid derivative, and (B) a polyester polyol having in the molecule skeleton at least one carbonate bond or ester bond, and a derivative thereo... | 05/07/2002 |
| 6365312 | Marking particles Disclosed are marking particles comprising a first polymer, a second polymer, a chelating agent, and a spiropyran material of the formula ##STR1## wherein n is an integer representing the number of repeat --CH2 -- units and R is --H or --CH.dbd... | 04/02/2002 |
| 6358655 | Marking particles Disclosed are marking particles comprising a resin, a chelating agent, and a spiropyran material which is of the formula ##STR1## The marking particles are prepared by an emulsion aggregation process.... | 03/19/2002 |
| 6326332 | Decolorable material and method for decoloring the same 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... | 12/04/2001 |
| 6299674 | Fingerprint developing agent and method for developing fingerprints A fingerprint detecting agent and a fingerprint detecting method using the agent, which can be used to detect latent fingerprints being in a wet condition, the fingerprint detecting agent includes a fixer containing silicone series compound, fluoride seri... | 10/09/2001 |
| 6203603 | Erasable image forming material 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 ... | 03/20/2001 |
| 6143060 | Triazine derivatives and recording materials prepared therefrom Triazine derivatives of general formula (I); and recording materials excellent in the storage stability of developed images, particularly the resistance thereof to plasticizers.... | 11/07/2000 |
| 6124377 | Marking system A marking system that advantageously minimizes messiness during use is disclosed. The marking system comprises a marking composition comprising at least one color precursor in the form of a leuco dye. A marking instrument can be utilized to store the mark... | 09/26/2000 |
| 6084702 | Thermochromic devices The invention is an energy efficient, thermochromic device for windows that allows sunlight or solar radiation into a building or structure when the ambient temperature is low and substantially blocks solar radiation when the ambient temperature is high, ... | 07/04/2000 |
| 6063173 | Reversible thermosensitive coloring composition and reversible thermosensitive recording medium using the same A reversible thermosensitive coloring composition is provided, which contains (a) an electron-donating coloring compound; and (b) an electron-accepting compound, which is an aromatic carboxylic acid compound comprising at least one hydrocarbon group, whic... | 05/16/2000 |
| 6037308 | Diphenyl sulfone crosslinking type compounds and recording materials using them Diphenyl sulfone crosslinking type compounds of general formula (1) and a recording material containing at least one of them. This recording material is excellent in the storage stability of colored images. ##STR1##... | 03/14/2000 |
| 6001159 | Reversible thermosensitive coloring composition and reversible thermosensitive recording medium using the same A reversible thermosensitive coloring composition contains an electron-donating coloring compound and an electron-accepting compound, and is capable of reversibly assuming a color-developed state or a decolorized state depending upon the the temperature o... | 12/14/1999 |
| 5935308 | Latent image jet inks A latent image printing process by applying to a substrate a latent image ink composition containing zinc bromide with an ink jet printer. Subsequently, the latent image is activated to render it visible, by application of an activator.... | 08/10/1999 |
| 5932515 | Recording paper incorporating hollow spherical plastic pigment A developer sheet for use in pressure-sensitive carbonless paper which incorporates a hollow microspherical plastic pigment.... | 08/03/1999 |
| 5879438 | Method for improving light-fastness of reversible thermochromic compositions at the time of color extinguishment A reversible thermochromic composition is formed by blending: (a) an electron donating compound; (b) an electron accepting compound; (c) a metachromatic temperature adjuster; (d) an electron accepting, light-fastness providing agent represented by Formula... | 03/09/1999 |
| 5873932 | Method for improving light-fastness of reversible thermochromic compositions at the time of color development A method of causing metachromatism by the use of a reversible thermochromic composition comprising (a) an electron donating compound, (b) an electron accepting compound and (c) a metachromatic temperature adjuster, wherein; (d) an electron accepting, light-fas... | 02/23/1999 |
| 5868821 | Thermally reversible color forming composition and thermally reversible recording medium using the thermally reversible color forming composition A thermally reversible color forming composition which includes an electron-donating chromophoric compound and an electron-accepting compound, by which formation and deletion of a color image may be carried out by adjusting thermal energy applied to the c... | 02/09/1999 |
| 5624882 | Color developer compositions for carbonless paper copying systems There is disclosed a coating composition for the preparation of a CF sheet (i.e. a receiving sheet) of a carbonless paper copying system comprising a CF sheet and a CB sheet (i.e. a donating sheet). The coating composition comprises a color developer and ... | 04/29/1997 |
| 5595590 | Method and compositions for authenticating a product or document A method and compositions for authenticating a document or article comprises applying a mixture of a carrier, a leuco dye and an activator to a surface of a document or article, wherein the leuco dye and activator react in response to a rubbing force appl... | 01/21/1997 |
| 5527385 | Thermochromic composition A thermochromic composition which comprises (1) an electron-donating chromogenic organic compound, (2) an electron-accepting compound, (3) at least one desensitizer selected from among hydrazide compounds, and (4) a thermochromic transition temperature modifier.... | 06/18/1996 |
| 5443629 | Latent image ink A latent image ink particularly for use in printing forms such as games or coloring books. An offset lithographic press is used for imprinting a substantially invisible image on a sheet of standard paper. The latent ink used to form the latent image is a ... | 08/22/1995 |
| 5395433 | Reversible thermosensitive coloring composition, recording medium, recording method, and image display apparatus using the recording medium A reversible thermosensitive coloring composition is composed of (i) an electron-donor coloring compound and (ii) an electron-acceptor compound selected from the group consisting of an organic phosphoric acid compound, an aliphatic carboxylic acid, and a ... | 03/07/1995 |
| 5376616 | Reversible heat-sensitive recording composition and reversible heat-sensitive recording sheet A reversible heat-sensitive recording composition capable of repeatedly writing or erasing, and a reversible heat-sensitive recording sheet using the composition are disclosed. The reversible heat-sentitive recording composition comprising a leuco compoun... | 12/27/1994 |
| 5350634 | Thermochromic composition A thermochromic composition which comprises (1) an electron-donating chromogenic organic compound, (2) an electron-accepting compound, and (3) at least one desensitizer selected from among diphenylamine derivatives of-the following formulas: ##STR1##... | 09/27/1994 |