Patents by Inventor Hiroyuki Ogawara

Hiroyuki Ogawara 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).

  • Nickel plating solution and its preparation method, nickel plating method and printed wiring board copper foil
    Patent number: 7842397
    Abstract: A nickel plating solution preparation method has the steps of: dissolving in water 100 g/L or more and less than 200 g/L of nickel sulfate, and 10 g/L or more and less than 30 g/L of sodium citrate or 8 g/L or more and less than 25 g/L of citric acid, but adding no nickel chloride; and adjusting a pH of the resultant solution to 2 or more and less than 4. Another nickel plating solution preparation method has the steps of: dissolving in water 100 g/L or more and less than 200 g/L of nickel sulfate, and 10 g/L or more and less than 30 g/L of sodium citrate or 8 g/L or more and less than 25 g/L of citric acid, but adding no boric acid; and adjusting a pH of the resultant solution to 2 or more and less than 4.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: November 30, 2010
    Assignee: Hitachi Cable, Ltd.
    Inventors: Yasuyuki Ito, Katsuyuki Matsumoto, Koji Nukaga, Yasuhiro Kusano, Kenji Yokomizo, Shingo Watanabe, Hiroyuki Ogawara, Katsumi Nomura
  • Nickel plating solution and its preparation method, nickel plating method and printed wiring board copper foil
    Publication number: 20070071999
    Abstract: A nickel plating solution preparation method has the steps of: dissolving in water 100 g/L or more and less than 200 g/L of nickel sulfate, and 10 g/L or more and less than 30 g/L of sodium citrate or 8 g/L or more and less than 25 g/L of citric acid, but adding no nickel chloride; and adjusting a pH of the resultant solution to 2 or more and less than 4. Another nickel plating solution preparation method has the steps of: dissolving in water 100 g/L or more and less than 200 g/L of nickel sulfate, and 10 g/L or more and less than 30 g/L of sodium citrate or 8 g/L or more and less than 25 g/L of citric acid, but adding no boric acid; and adjusting a pH of the resultant solution to 2 or more and less than 4.
    Type: Application
    Filed: September 21, 2006
    Publication date: March 29, 2007
    Applicant: Hitachi Cable, Ltd.
    Inventors: Yasuyuki Ito, Katsuyuki Matsumoto, Koji Nukaga, Yasuhiro Kusano, Kenji Yokomizo, Shingo Watanabe, Hiroyuki Ogawara, Katsumi Nomura