Patents by Inventor Yasutake Teraoka

Yasutake Teraoka has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Decomposition catalyst for nitrous oxide, process for producing the same and process for decomposing nitrous oxide
    Publication number: 20060008401
    Abstract: A method for decomposing nitrous oxide comprises contacting a catalyst for decomposing nitrous oxide with a nitrous oxide-containing gas at 200 to 600° C. The catalyst comprises a support and supported thereon at least one noble metal selected from rhodium, ruthenium and palladium. The support comprises silica or silica alumina. At least one metal selected from zinc, iron and manganese can be supported on the support.
    Type: Application
    Filed: August 3, 2005
    Publication date: January 12, 2006
    Inventors: Masatoshi Hotta, Yoshio Furuse, Hitoshi Atobe, Shigehiro Chaen, Yasutake Teraoka
  • Decomposition catalyst for nitrous oxide, prcocess for producing the same and process for decomposing nitrous oxide
    Publication number: 20030181324
    Abstract: To provide a catalyst obtained by loading at least one noble metal selected from the group consisting of rhodium, ruthenium and palladium on a support selected from silica and silica alumina, and a method for decomposing nitrous oxide using the catalyst thereof. The catalyst for decomposing nitrous oxide of the present invention cannot be easily affected by a volatile anesthetic contained in a waste anesthetic gas, can recover the activity by activation and regeneration even when deteriorated, and can reduce the amount of NOx generated to less than the allowable concentration.
    Type: Application
    Filed: February 27, 2003
    Publication date: September 25, 2003
    Inventors: Masatoshi Hotta, Yoshio Furuse, Hitoshi Atobe, Shigehiro Chaen, Yasutake Teraoka
  • Catalyst and method for catalytically decomposing nitrogen oxides
    Patent number: 5219545
    Abstract: A catalyst and a method for catalytically decomposing nitrogen oxides, wherein the catalyst comprises a zeolite having a mole ratio of SiO.sub.2 /Al.sub.2 O.sub.3 of at least 20, and containing (i) copper ions and (ii) (a) transition metal ions other than copper ions, (b) at least one alkaline earth metal ion selected from calcium, strontium and barium ions, (c) yttrium ions, or (a) silver ions.
    Type: Grant
    Filed: March 8, 1991
    Date of Patent: June 15, 1993
    Assignee: Tosoh Corporation
    Inventors: Shuichi Kagawa, Yasutake Teraoka
  • Method for catalytically decomposing nitrogen oxides
    Patent number: 5078981
    Abstract: A catalyst and a method for catalytically decomposing nitrogen oxides; the catalyst being composed of a zeolite having a mole ratio of SiO.sub.2 /Al.sub.2 O.sub.3 of at least 20 and containing copper ions and magnesium ions.
    Type: Grant
    Filed: July 6, 1990
    Date of Patent: January 7, 1992
    Assignee: Tosoh Corporation
    Inventors: Shuichi Kagawa, Yasutake Teraoka