Patents by Inventor Yoshihito Ii

Yoshihito Ii 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).

  • ELECTROLESS RUTHENIUM PLATING BATH
    Publication number: 20240218518
    Abstract: An electroless ruthenium plating bath at least contains: a ruthenium compound; a reducing agent; and a stabilizer. The reducing agent is at least one of an amine borane compound or sodium hypophosphite. The stabilizer is made of a hydroxylamine compound and an amine compound. The hydroxylamine compound is at least one of hydroxylamine sulfate or hydroxylamine chloride.
    Type: Application
    Filed: December 13, 2023
    Publication date: July 4, 2024
    Inventors: Yoshihito II, Yoichi MARUO, Yukinori ODA
  • ELECTROLESS Co-W PLATING FILM AND ELECTROLESS Co-W PLATING SOLUTION
    Publication number: 20220389587
    Abstract: An object of the present invention is to provide a new electroless plating film which can prevent the diffusion of molten solder to a metal material constituting a conductor. The present invention is an electroless Co—W plating film, wherein content of W is in an amount of 35 to 58 mass % and a thickness of the film is 0.05 ?m or more.
    Type: Application
    Filed: May 23, 2022
    Publication date: December 8, 2022
    Applicant: C. Uyemura & Co., Ltd.
    Inventors: Shoji IGUCHI, Akio ITAMURA, Shoichi FUKUI, Yukinori ODA, Masaaki SATO, Yoshihito II, Hiroki OKUBO
  • Aluminum oxide film remover and method for surface treatment of aluminum or aluminum alloy
    Patent number: 9567686
    Abstract: Disclosed herein is an aluminum oxide film remover for removing an oxide film on the surface of aluminum or aluminum alloy, which comprises silver ions and/or copper ions, a solubilizing agent for silver ions and/or copper ions, and a quaternary ammonium hydroxide compound, and has a pH value of 10 to 13.5. A method for surface treatment of aluminum or aluminum alloy is also disclosed, which comprises immersing a workpiece having aluminum or aluminum alloy at least on the surface thereof in the aluminum oxide film remover, and depositing the silver and/or copper contained in the remover on the surface of aluminum or aluminum alloy while removing the aluminum oxide film.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: February 14, 2017
    Assignees: C. UYEMURA & CO., LTD., FUJI ELECTRIC CO., LTD.
    Inventors: Toshiaki Shibata, Yoshihito Ii, Hiromu Inagawa
  • ALUMINUM OXIDE FILM REMOVER AND METHOD FOR SURFACE TREATMENT OF ALUMINUM OR ALUMINUM ALLOY
    Publication number: 20110315658
    Abstract: Disclosed herein is an aluminum oxide film remover for removing an oxide film on the surface of aluminum or aluminum alloy, which comprises silver ions and/or copper ions, a solubilizing agent for silver ions and/or copper ions, and a quaternary ammonium hydroxide compound, and has a pH value of 10 to 13.5. A method for surface treatment of aluminum or aluminum alloy is also disclosed, which comprises immersing a workpiece having aluminum or aluminum alloy at least on the surface thereof in the aluminum oxide film remover, and depositing the silver and/or copper contained in the remover on the surface of aluminum or aluminum alloy while removing the aluminum oxide film.
    Type: Application
    Filed: June 23, 2011
    Publication date: December 29, 2011
    Applicants: FUJI ELECTRIC CO., LTD, C. UYEMURA & CO., LTD
    Inventors: Toshiaki Shibata, Yoshihito Ii, Hiromu Inagawa