Patents by Inventor Yoshihiro Tadokoro

Yoshihiro Tadokoro 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).

  • Patent number: 11939495
    Abstract: An oxygen-absorbing film having an oxygen-absorbing adhesive agent layer including a cured oxygen-absorbing adhesive agent resin composition, wherein the oxygen-absorbing adhesive agent layer has at least two glass transition temperatures, and wherein the lowest glass transition temperature among the glass transition temperatures is lower than 0° C. The cured oxygen-absorbing adhesive agent resin composition preferably includes: (A) an oxygen-absorbing polyester resin having a glass transition temperature of ?20 to 10° C. and (B) a saturated polyester resin having a glass transition temperature of ?10° C. or lower.
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: March 26, 2024
    Assignee: Toyo Seikan Group Holdings, Ltd.
    Inventors: Yoichi Tadokoro, Yoichi Ishizaki, Yoshihiro Ohta
  • Publication number: 20170348805
    Abstract: The disclosed solder alloy is useful for plating and for use with electronic components, which are capable of suppressing the formation of external stress-type whiskers. This solder alloy for plating contains Sn and Ni, with the Ni content being 0.06-5.0 mass % inclusive and the remainder including Sn, and is used in electrical contacts that are electrically connected through mechanical joining.
    Type: Application
    Filed: December 9, 2015
    Publication date: December 7, 2017
    Applicants: SENJU METAL INDUSTRY CO., LTD., DDK Ltd.
    Inventors: Kaichi TSURUTA, Osamu MUNEKATA, Hiroyuki IWAMOTO, Atsushi IKEDA, Hiroyuki MORIUCHI, Shinichi KAYAMA, Yoshihiro TADOKORO
  • Patent number: 9705221
    Abstract: An electronic component includes at least a contact member having, on a surface of a contact portion adapted to come into contact with another contact member, at least an undercoat plating layer and a main plating layer formed on the undercoat plating layer. A coating containing a fluorine-based oil is provided on the main plating layer, and the coating has a dry coating weight per unit area on the main plating layer of greater than or equal to 0.011 mg/cm2.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: July 11, 2017
    Assignee: DDK LTD.
    Inventor: Yoshihiro Tadokoro
  • Publication number: 20160064846
    Abstract: An electronic component includes at least a contact member having, on a surface of a contact portion adapted to come into contact with another contact member, at least an undercoat plating layer and a main plating layer formed on the undercoat plating layer. A coating containing a fluorine-based oil is provided on the main plating layer, and the coating has a dry coating weight per unit area on the main plating layer of greater than or equal to 0.011 mg/cm2.
    Type: Application
    Filed: April 4, 2014
    Publication date: March 3, 2016
    Applicant: DDK LTD.
    Inventor: Yoshihiro TADOKORO
  • Patent number: 8092263
    Abstract: An object of the invention is to provide a process for providing a connector, which prevents component atoms constituting a material and a substrate layer from diffusing into a tin-containing material layer and suppressing an occurrence of external force-type whiskers upon the application of external force to a surface of the tin-containing material layer, and a connector produced by the same process. In a production process of a connector comprising a step of providing a substrate layer on a surface of the material to surface treat the material and a step of providing a tin-containing material layer on an upside of the substrate layer to surface treat the substrate layer, the object can be achieved by further comprising a step of providing a barrier intermediate layer before the provision of the tin-containing material layer.
    Type: Grant
    Filed: July 7, 2008
    Date of Patent: January 10, 2012
    Assignee: DDK Ltd.
    Inventors: Hiroyuki Moriuchi, Yoshihiro Tadokoro, Eiichi Mikogai, Yoshiichi Nakano
  • Publication number: 20100255735
    Abstract: An object of the invention is to provide a process for providing a connector, which prevents component atoms constituting a material and a substrate layer from diffusing into a tin-containing material layer and suppressing an occurrence of external force-type whiskers upon the application of external force to a surface of the tin-containing material layer, and a connector produced by the same process. In a production process of a connector comprising a step of providing a substrate layer on a surface of the material to surface treat the material and a step of providing a tin-containing material layer on an upside of the substrate layer to surface treat the substrate layer, the object can be achieved by further comprising a step of providing a barrier intermediate layer before the provision of the tin-containing material layer.
    Type: Application
    Filed: July 7, 2008
    Publication date: October 7, 2010
    Inventors: Hiroyuki Moriuchi, Yoshihiro Tadokoro, Eiichi Mikogai, Yoshiichi Nakano
  • Publication number: 20020064677
    Abstract: An electric connector comprises a metal terminal or a metal shell joined to a core conductor or a metal layer portion of a substrate, wherein a Ni layer as an under layer is formed on at least a portion of the metal shell or the metal shell to be joined, and a Sn-Cu alloy layer having a copper content of 0.5-5.0 mass % is further formed on the Ni layer.
    Type: Application
    Filed: September 17, 2001
    Publication date: May 30, 2002
    Inventors: Hiroyuki Moriuchi, Yoshiichi Nakano, Yoshihiro Tadokoro