Patents by Inventor Hidenori IKUSHIMA

Hidenori IKUSHIMA 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: 8556640
    Abstract: An electrical connector is miniaturized and reduced in profile height, yet maintains strength and connection stability, uses elastic fixtures as a power source and provides stable fitting. When connectors are fitted with each other, a first contact of an elastic first fixture is brought to contact a second contact of a second fixture to be used as a power source. An inclined portion of a receptacle contact and an inclined portion of an insertion hole of a housing are formed roughly in the same shape to adjust support of the receptacle contact and provide stable connection. A first chamfered portion of the receptacle contact engages a recess of a plug contact to produce a clicking feeling. The first chamfered portions are positioned and brought to contact the recesses so the plug contact is held between a contact portion and an elastic portion of the receptacle contact.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: October 15, 2013
    Assignee: DDK Ltd.
    Inventors: Jinichi Mashiyama, Toshihiko Hirai, Yoshinori Iwashita, Hiromichi Kato, Hidenori Ikushima
  • Publication number: 20130012074
    Abstract: An electrical connector is miniaturized and reduced in profile height, yet maintains strength and connection stability, uses elastic fixtures as a power source and provides stable fitting. When connectors are fitted with each other, a first contact means of an elastic first fixture is brought to contact a second contact means of a second fixture to be used as a power source. An inclined portion of a receptacle contact and an inclined portion of an insertion hole of a housing are formed roughly in the same shape to adjust support of the receptacle contact and provide stable connection. A first chamfered portion of the receptacle contact engages a recess of a plug contact to produce a clicking feeling. The first chamfered portions are positioned and brought to contact the recesses so the plug contact is held between a contact portion and an elastic portion of the receptacle contact.
    Type: Application
    Filed: July 5, 2012
    Publication date: January 10, 2013
    Applicant: DDK LTD.
    Inventors: Jinichi MASHIYAMA, Toshihiko HIRAI, Yoshinori IWASHITA, Hiromichi KATO, Hidenori IKUSHIMA
  • Patent number: D688210
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: August 20, 2013
    Assignee: DDK Ltd.
    Inventors: Jinichi Mashiyama, Toshihiko Hirai, Yosinori Iwashita, Hiromichi Kato, Hidenori Ikushima, Kenji Nakagawa, Yasushi Kawabara, Kazuhiro Sato, Taishi Otokata