Patents by Inventor Yu-Geng WU

Yu-Geng WU 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).

  • Cleaning liquid, anticorrosion agent, and method for manufacturing the same
    Patent number: 10597609
    Abstract: A cleaning liquid and an anticorrosion agent having an excellent corrosion inhibition function, and a method for manufacturing the same. The cleaning liquid contains alkanol hydroxyamine represented by general formula (1), alkanolamine represented by general formula (2), a solvent, and a basic compound other than the alkanol hydroxyamine and the alkanolamine or an acidic compound. In the general formula (1), Ra1 and Ra2 each independently represents a C1-C10 alkyl group having one to three hydroxy groups, or a hydrogen atom, Ra1 and Ra2 are not simultaneously a hydrogen atom, and Rb1 and Rb2 are not simultaneously a hydrogen atom.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: March 24, 2020
    Assignee: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Takumi Namiki, Takayuki Haraguchi, Yu-Geng Wu
  • Cleaning liquid and method for manufacturing the same
    Patent number: 10597616
    Abstract: A cleaning liquid having an excellent corrosion inhibition function, and a method for manufacturing the same. The cleaning liquid contains alkanol hydroxyamine represented by general formula (1), and a basic compound other than the alkanol hydroxyamine. In the formula, Ra1 and Ra2 each independently represents a C1-C10 alkyl group having one to three hydroxy groups, or a hydrogen atom, and Ra1 and Ra2 are not simultaneously a hydrogen atom.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: March 24, 2020
    Assignee: TOYOTA OHKA KOGYO CO., LTD.
    Inventors: Takumi Namiki, Takayuki Haraguchi, Yu-Geng Wu
  • CLEANING LIQUID, ANTICORROSION AGENT, AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20180187128
    Abstract: A cleaning liquid and an anticorrosion agent having an excellent corrosion inhibition function, and a method for manufacturing the same. The cleaning liquid contains alkanol hydroxyamine represented by general formula (1), alkanolamine represented by general formula (2), a solvent, and a basic compound other than the alkanol hydroxyamine and the alkanolamine or an acidic compound. In the general formula (1), Ra1 and Ra2 each independently represents a C1-C10 alkyl group having one to three hydroxy groups, or a hydrogen atom, Ra1 and Ra2 are not simultaneously a hydrogen atom, and Rb1 and Rb2 are not simultaneously a hydrogen atom.
    Type: Application
    Filed: December 27, 2017
    Publication date: July 5, 2018
    Inventors: Takumi NAMIKI, Takayuki HARAGUCHI, Yu-Geng WU
  • CLEANING LIQUID AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20180187133
    Abstract: A cleaning liquid having an excellent corrosion inhibition function, and a method for manufacturing the same. The cleaning liquid contains alkanol hydroxyamine represented by general formula (1), and a basic compound other than the alkanol hydroxyamine. In the formula, Ra1 and Ra2 each independently represents a C1-C10 alkyl group having one to three hydroxy groups, or a hydrogen atom, and Ra1 and Ra2 are not simultaneously a hydrogen atom.
    Type: Application
    Filed: December 27, 2017
    Publication date: July 5, 2018
    Inventors: Takumi Namiki, Takayuki Haraguchi, Yu-Geng Wu