| Patent application number | Description | Published |
|---|
| 20090020185 | AQUEOUS TREATING SOLUTION FOR FORMING BLACK TRIVALENT-CHROMIUM CHEMICAL CONVERSION COATING ON ZINC OR ZINC ALLOY AND METHOD OF FORMING BLACK TRIVALENT-CHROMIUM CHEMICAL CONVERSION COATING - A treating solution for forming on a surface of either zinc or a zinc alloy a hexavalent-chromium-free trivalent-chromium chemical conversion coating which has an even black appearance and satisfactory corrosion resistance. The treating solution has a long treating-bath life. Also provided is a method of forming a black trivalent-chromium chemical conversion coating. The aqueous treating solution, which is for forming a black trivalent-chromium chemical conversion coating on zinc or a zinc alloy, contains trivalent chromium ions, a phosphoric ester and/or phosphorous ester, and a sulfur compound. The method is a method of chemically treating zinc or a zinc alloy which comprises using the aqueous treating solution to chemically treat the zinc or zinc alloy at a solution temperature of 10-60° C., whereby a black trivalent-chromium chemical conversion coating is formed on the zinc or zinc alloy. Furthermore provided is a coated zinc or zinc alloy metal which comprises zinc or a zinc alloy and, formed thereon, a black trivalent-chromium chemical conversion coating formed by a chemical treatment with the aqueous treating solution. | 01-22-2009 |
| 20090050238 | TREATMENT SOLUTION FOR FORMING OF BLACK TRIVALENT CHROMIUM CHEMICAL COATING ON ZINC OR ZINC ALLOY AND METHOD OF FORMING BLACK TRIVALENT CHROMIUM CHEMICAL COATING ON ZINC OR ZINC ALLOY - A treatment solution that is used to form a chemical coating of trivalent chromium free of hexavalent chromium having uniform black appearance and good corrosion resistance on the surface of zinc or zinc alloy and that attains prolongation of treatment bath lifetime; and a method of forming a black trivalent chromium chemical coating on the surface of zinc or zinc alloy. There is provided a treatment solution for forming of a black trivalent chromium chemical coating on zinc or zinc alloy, comprising trivalent chromium ions, a chelating agent capable of forming a water-soluble complex with trivalent chromium, zinc ions, a sulfur compound and phosphite ions. | 02-26-2009 |
| 20090178734 | PROCESSING SOLUTION FOR FORMING HEXAVALENT CHROMIUM FREE, BLACK CONVERSION FILM ON ZINC OR ZINC ALLOY PLATING LAYERS, AND METHOD FOR FORMING HEXAVALENT CHROMIUM FREE, BLACK CONVERSION FILM ON ZINC OR ZINC ALLOY PLATING LAYERS - It is an object of the present invention to provide a processing solution used for forming a hexavalent chromium free, black conversion film, which is applied onto the surface of zinc or zinc alloy plating layers, and which has corrosion resistance identical to or higher than that achieved by the conventional hexavalent chromium-containing conversion film. | 07-16-2009 |
| 20100016085 | SHOOTING TOY USED IN GAME FOR TWO OR MORE PLAYERS - A shooting toy used in a game for two or more players capable of allowing an opponent player to reliably receive an infrared ray signal even in an open air, e.g., under a scorching sun. The intensity of light included in a particular wavelength region around a toy is detected by an optical sensor | 01-21-2010 |
| 20100062678 | SHOOTING TOY USED IN GAME FOR TWO OR MORE PLAYERS - A shooting toy used in a game for two or more players for enabling players to actually sense the thrill of close combat. The toy include an infrared ray signal generating section | 03-11-2010 |
| 20100203327 | Corrosion-resistant trivalent-chromium chemical conversion coating and solution for trivalent-chromium chemical treatment - A trivalent-chromium chemical conversion coating from which substantially no hexavalent chromium is released. The trivalent-chromium chemical conversion coating is one formed on the surface of a zinc or zinc-alloy deposit. In a brine spray test, the chemical conversion coating has unsusceptibility to corrosion (time required for white-rust formation) of 96 hours or longer. The chemical conversion coating has a hexavalent-chromium concentration less than 0.01 μg/cm | 08-12-2010 |
| 20100285322 | Electric Al-Zr Alloy Plating Bath Using Room Temperature Molten Salt Bath and Plating Method Using the Same - Disclosed is an electric Al—Zr alloy plating bath containing an aluminum halide (A), one or more compounds (B) selected from the group consisting of N-alkylpyridinium halides, N-alkylimidazolium halides, N,N′-alkylimidazolium halides, N-alkylpyrazolium halides and N,N′-alkylpyrazolium halides, and a zirconium halide (C). The molar ratio between the aluminum halide (A) and the compounds (B) is from 1:1 to 3:1. The electric Al—Zr alloy plating bath further contains an aromatic organic solvent (D), an organic polymer (E) and one or more additives (F) selected from brightening agents. | 11-11-2010 |
| 20100293728 | DEVICE AND METHOD FOR PREVENTING RUSTING OF CABLE FOR SUPPORTING BRIDGE - A suspension bridge is supported by a cable with one or more cable bands. The rust-preventing device comprises one or more covers for so covering the cable that the gaps allowing a gas to longitudinally flow along the outer surface of the cable are formed between the inner peripheral surfaces of the covers and the outer surface of the cable, and an air blower which is in airtight communication with the gaps and supplies air into the gaps after drying it. | 11-25-2010 |
