| SAKURA COLOR PRODUCTS CORPORATION Patent applications |
| Patent application number | Title | Published |
|---|
| 20110198224 | PROCESS FOR PRODUCING ELECTRET COARSE POWDER - The subject invention provides a process for efficiently producing electret coarse powder useful as electrophoretic particles for a large-screen display. | 08-18-2011 |
| 20110180676 | CLIPPING STRUCTURE FOR WRITING INSTRUMENT - A clipping structure includes a main body, a clip member, and an urging member for urging the clip member. The main body has a connecting protrusion, whereas the clip member has two lateral parts, between which the connecting protrusion is arranged. Further, the connecting protrusion has receptacles on its outer surfaces, whereas the lateral parts have shaft projections on its inner surfaces respectively. Fitting of the shaft projections into the respective receptacles connects the clipping member swingably to the main body. The connecting protrusion, where the receptacles are formed, has tapered portions formed on its outer surfaces respectively. Gradual opening of a gap between the lateral parts with distal ends of the shaft projections brought into contact with the respective tapered portions fits the shaft projections in the respective receptacles. | 07-28-2011 |
| 20110000786 | PROCESS FOR PRODUCING ELECTRET FINE PARTICLES - The subject invention provides a method which enables easy and efficient production of fine electret fine particles without the conventional pulverization or screening process. | 01-06-2011 |
| 20100275813 | DISCOLORABLE INK COMPOSITION AND WRITING UTENSILS - The invention provides a discolorable ink composition which is irreversibly erasable by heating to about 40° C. to 120° C. A discolorable ink composition, where an electron-donating color-forming organic compound and an electron-accepting compound are incorporated in wax particles, whereby the electron-donating color-forming compound in a state color-developed by the electron-accepting compound is separated from a decolorizer and kept in the color-developed state, while when the wax is liquefied by heating, the decolorizer reacts with the electron-accepting compound to convert the electron-donating color-forming organic compound into a decolorized state. | 11-04-2010 |
| 20100273914 | CRAYON - The invention provides a crayon which comprises an alternative plasticizer in place of the conventional phthalate ester plasticizers and yet provides writings excellent in water resistance, the crayon comprising a colorant, a gelling agent, an organic solvent, a resin component, and a plasticizer, wherein the plasticizer is at least one selected from diisononyl adipate, acetyltributyl citrate, 1,2-cyclohexanedicarboxylic acid diisononyl, and alkylsulfonic acid phenyl ester and is contained in an amount of 1 to 20% by weight based on the crayon. | 10-28-2010 |
| 20100119410 | Ink Composition for Detecting Hydrogen Peroxide and Indicator for Detection of Hydrogen Peroxide - An indicator for the detection of hydrogen peroxide. It undergoes a color change according to the concentration of hydrogen peroxide and this color change can be visually recognized with higher certainty. An ink composition for hydrogen peroxide detection is provided which comprises 1) at least one of styrene-acrylic resins and styrene-maleic acid resins and 2) a methine dye. A color change layer formed from the ink composition for hydrogen peroxide detection produces an effect that a color change according to, e.g., the concentration of hydrogen peroxide can be visually recognized. | 05-13-2010 |
| 20100016471 | CRAYON AND PROCESS FOR PRODUCING THE SAME - The invention provides a process for producing a crayon having a desired hardness stably without poor gelation using a benzylidene sorbitol gelling agent together with the use of carbon black as a black pigment. The process comprises: | 01-21-2010 |
| 20090326096 | CRAYON AND PROCESS FOR PRODUCING THE SAME - The invention provides a process for producing a crayon having a desired hardness stably without poor gelation using a benzylidene sorbitol gelling agent together with the use of carbon black as a black pigment. The process comprises: | 12-31-2009 |
| 20090234069 | Oil-Based Ink Composition for Writing Instruments - An oil-based ink composition for writing instruments is provided that is capable of improving storage stability of an ink, while maintaining a leveling property even when a soluble gelling agent is used. The oil-based ink composition for writing instruments comprises a colorant, a resin, an organic solvent and a gelling agent, wherein said organic solvent(s) is (are) hydrocarbons solvent(s), and in particular, at least one species of the solvent selected from the group of aliphatic hydrocarbons solvent(s), alicyclic hydrocarbons solvent(s), aromatic hydrocarbons solvent(s), and halogenetad hydrocarbons solvent(s),
| 09-17-2009 |
| 20090209678 | CRAYON - The invention provides a crayon having excellent feel when writing while having high gel hardness. The crayon comprises a colorant, a gelling agent, an organic solvent and a resin component, wherein the gelling agent is at least one selected from the group consisting of dibenzylidene sorbitol, tribenzylidene sorbitol and derivatives thereof, and the resin component comprises a combination of polyvinyl butyral resin having an average degree of polymerization of less than 350 and polyvinyl butyral resin having an average degree of polymerization of 350 or more. | 08-20-2009 |
| 20080267811 | Ink Composition for Sensing Gas Exposure and Gas Exposure Indicator - An object of the present invention is to provide a material for more easily and accurately detecting treatment status using gas exposure. The present invention relates to an ink composition for detecting an oxidizing gas, or the like, comprising at least one type of azo dye, methine dye, triarylmethane dye and thiazine dye. | 10-30-2008 |
