Patents by Inventor Tadashi Masubuchi

Tadashi Masubuchi 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: 9653848
    Abstract: A connector includes a housing and a plurality of signal contacts and a plurality of ground contacts. Each contact includes a contact portion that contacts an object, a connection portion mounted on a substrate, and a fixing portion located between the contact portion and the connection portion in the vicinity of the connection portion. The signal contact and the ground contact are aligned and held in the housing, and the fixing portion is fixed to the housing. When the plurality of signal contacts are arranged between the ground contacts, at least two of the ground contacts are coupled and connected integrally or by a separate component, the coupling and connection being made in a section of each ground contact between one end (leading end) of the contact portion and the fixing portion, so that high-frequency transmission characteristics are improved.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: May 16, 2017
    Assignee: DDK Ltd.
    Inventors: Tadashi Masubuchi, Takuya Higeta, Masayoshi Nemoto
  • Publication number: 20160156133
    Abstract: A connector includes a housing and a plurality of signal contacts and a plurality of ground contacts. Each contact includes a contact portion that contacts an object, a connection portion mounted on a substrate, and a fixing portion located between the contact portion and the connection portion in the vicinity of the connection portion. The signal contact and the ground contact are aligned and held in the housing, and the fixing portion is fixed to the housing. When the plurality of signal contacts are arranged between the ground contacts, at least two of the ground contacts are coupled and connected integrally or by a separate component, the coupling and connection being made in a section of each ground contact between one end (leading end) of the contact portion and the fixing portion, so that high-frequency transmission characteristics are improved.
    Type: Application
    Filed: January 25, 2016
    Publication date: June 2, 2016
    Inventors: Tadashi MASUBUCHI, Takuya HIGETA, Masayoshi NEMOTO
  • Patent number: 9276342
    Abstract: A connector includes a housing and a plurality of signal contacts and a plurality of ground contacts. Each contact includes a contact portion that contacts an object, a connection portion mounted on a substrate, and a fixing portion located between the contact portion and the connection portion in the vicinity of the connection portion. The signal contact and the ground contact are aligned and held in the housing, and the fixing portion is fixed to the housing. When the plurality of signal contacts are arranged between the ground contacts, at least two of the ground contacts are coupled and connected integrally or by a separate component, the coupling and connection being made in a section of each ground contact between one end (leading end) of the contact portion and the fixing portion, so that high-frequency transmission characteristics are improved.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: March 1, 2016
    Assignee: DDK Ltd.
    Inventors: Tadashi Masubuchi, Takuya Higeta, Masayoshi Nemoto
  • Publication number: 20130288513
    Abstract: A connector includes a housing and a plurality of signal contacts and a plurality of ground contacts. Each contact includes a contact portion that contacts an object, a connection portion mounted on a substrate, and a fixing portion located between the contact portion and the connection portion in the vicinity of the connection portion. The signal contact and the ground contact are aligned and held in the housing, and the fixing portion is fixed to the housing. When the plurality of signal contacts are arranged between the ground contacts, at least two of the ground contacts are coupled and connected integrally or by a separate component, the coupling and connection being made in a section of each ground contact between one end (leading end) of the contact portion and the fixing portion, so that high-frequency transmission characteristics are improved.
    Type: Application
    Filed: April 26, 2013
    Publication date: October 31, 2013
    Inventors: Tadashi MASUBUCHI, Takuya HIGETA, Masayoshi NEMOTO
  • Patent number: 7357642
    Abstract: A card connector into and from which a card is inserted and removed, includes a plurality of contacts each having a contact portion to contact the card, a housing arranging and holding the contacts and having a fitting opening for inserting the card, a guide frame formed integrally with or separately from the housing and having guide portions for guiding the card to the contacts, a shell enclosing that part of the guide frame in which removing device is installed for removing the card from the card connector, and terminals arranged on the side of the leading end of the fitting opening for preventing troubles caused by static electricity. One of the terminals is provided with an extending piece extending onto the side opposite from the connection portion to be connected to a substrate. The shell is provided with an extending portion adapted to contact the extending piece. The card connector thus constructed is free from secondary discharge.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: April 15, 2008
    Assignee: DDK, Ltd
    Inventors: Tadashi Masubuchi, Hirokazu Takahashi
  • Publication number: 20070190817
    Abstract: A card connector into and from which a card is inserted and removed, includes a plurality of contacts each having a contact portion to contact the card, a housing arranging and holding the contacts and having a fitting opening for inserting the card, a guide frame formed integrally with or separately from the housing and having guide portions for guiding the card to the contacts, a shell enclosing that part of the guide frame in which removing device is installed for removing the card from the card connector, and terminals arranged on the side of the leading end of the fitting opening for preventing troubles caused by static electricity. One of the terminals is provided with an extending piece extending onto the side opposite from the connection portion to be connected to a substrate. The shell is provided with an extending portion adapted to contact the extending piece. The card connector thus constructed is free from secondary discharge.
    Type: Application
    Filed: February 15, 2007
    Publication date: August 16, 2007
    Inventors: Tadashi Masubuchi, Hirokazu Takahashi
  • Patent number: D539750
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: April 3, 2007
    Assignee: DDK Ltd.
    Inventors: Hirokazu Takahashi, Tadashi Masubuchi, Ryoji Kitamuki
  • Patent number: D563876
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: March 11, 2008
    Assignee: DDK Ltd.
    Inventors: Tadashi Masubuchi, Yasuyuki Koguchi, Takuya Higeta
  • Patent number: D563889
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: March 11, 2008
    Assignee: DDK Ltd.
    Inventors: Takuya Higeta, Tadashi Masubuchi, Yasuyuki Koguchi