Patents by Inventor Hisafumi Takahashi

Hisafumi Takahashi 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: 6908332
    Abstract: A connector structure 1 has a cable 3, and a left connector 10 and a right connector 20 connected respectively to left and right ends of the cable 3. The left and right connectors 10 and 20 respectively have terminal holding members 11, 21 that are made of an insulating material and hold a plurality of terminals, protective covers 13, 23 that are made of a conductive material and covers the terminal holding member, and pull tabs 15, 25. The pull tabs 15 and 25 respectively have tip end parts thereof bonded onto the covers 13, 23 respectively and extend out in the cable direction. The left and right connectors 10 and 20 are removed from respective counterpart connectors 5, 7 into which the left and right connector 10, 20 have been fitted by grasping the pull tabs 15, 25 and pulling in a direction such that the left and right connectors 10, 20 separate away from the respective counterpart connectors 5, 7.
    Type: Grant
    Filed: January 22, 2004
    Date of Patent: June 21, 2005
    Assignee: Kel Corporation
    Inventors: Hisafumi Takahashi, Atsushi Makiuchi
  • Publication number: 20040224554
    Abstract: A connector structure 1 has a cable 3, and a left connector 10 and a right connector 20 connected respectively to left and right ends of the cable 3. The left and right connectors 10 and 20 respectively have terminal holding members 11, 21 that are made of an insulating material and hold a plurality of terminals, protective covers 13, 23 that are made of a conductive material and covers the terminal holding member, and pull tabs 15, 25. The pull tabs 15 and 25 respectively have tip end parts thereof bonded onto the covers 13, 23 respectively and extend out in the cable direction. The left and right connectors 10 and 20 are removed from respective counterpart connectors 5, 7 into which the left and right connector 10, 20 have been fitted by grasping the pull tabs 15, 25 and pulling in a direction such that the left and right connectors 10, 20 separate away from the respective counterpart connectors 5, 7.
    Type: Application
    Filed: January 22, 2004
    Publication date: November 11, 2004
    Inventors: Hisafumi Takahashi, Atsushi Makiuchi
  • Patent number: 6685499
    Abstract: A connector structure 1 has a cable 3, and a left connector 10 and a right connector 20 connected respectively to left and right ends of the cable 3. The left and right connectors 10 and 20 respectively have terminal holding members 11, 21 that are made of an insulating material and hold a plurality of terminals, protective covers 13, 23 that are made of a conductive material and covers the terminal holding member, and pull tabs 15, 25. The pull tabs 15 and 25 respectively have tip end parts thereof bonded onto the covers 13, 23 respectively and extend out in the cable direction. The left and right connectors 10 and 20 are removed from respective counterpart connectors 5, 7 into which the left and right connector 10, 20 have been fitted by grasping the pull tabs 15, 25 and pulling in a direction such that the left and right connectors 10, 20 separate away from the respective counterpart connectors 5, 7.
    Type: Grant
    Filed: August 6, 2001
    Date of Patent: February 3, 2004
    Assignee: Kel Corporation
    Inventors: Hisafumi Takahashi, Atsushi Makiuchi
  • Publication number: 20020031926
    Abstract: A connector structure 1 has a cable 3, and a left connector 10 and a right connector 20 connected respectively to left and right ends of the cable 3. The left and right connectors 10 and 20 respectively have terminal holding members 11, 21 that are made of an insulating material and hold a plurality of terminals, protective covers 13, 23 that are made of a conductive material and covers the terminal holding member, and pull tabs 15, 25. The pull tabs 15 and 25 respectively have tip end parts thereof bonded onto the covers 13, 23 respectively and extend out in the cable direction. The left and right connectors 10 and 20 are removed from respective counterpart connectors 5, 7 into which the left and right connector 10, 20 have been fitted by grasping the pull tabs 15, 25 and pulling in a direction such that the left and right connectors 10, 20 separate away from the respective counterpart connectors 5, 7.
    Type: Application
    Filed: August 6, 2001
    Publication date: March 14, 2002
    Inventors: Hisafumi Takahashi, Atsushi Makiuchi
  • Patent number: 5964620
    Abstract: Each grounding plate 31 or 32 includes main body 31b or 32b and grounding bars 31a or 32a which extend forward from the main body 31b or 32b. The grounding bars 31a or 32a and the signal lines Ce of coaxial cables are sandwiched between an insulation displacement piece 11 or 12 and the housing 10 to press the grounding bars 31a or 32a and the signal lines Ce into the insulation displacement portions Ta of the contacts T in the housing. The grounding plates 31 and 32 include barrels 33 to which the shielding wires Cc of the coaxial cables are connected for retaining the coaxial cables C in alignment such that the shielding wires Cc and the grounding bars 31a and 32a are electrically connected. In this way, an insulation displacement connector for coaxial cables is realized to make the connection of the coaxial cables to the contacts easy even for a multi-terminal connector and to prevent faults in the performance of the connector.
    Type: Grant
    Filed: February 3, 1998
    Date of Patent: October 12, 1999
    Assignee: Kel Corporation
    Inventors: Hisafumi Takahashi, Masahiro Tada
  • Patent number: 5679008
    Abstract: An electrical connector 1 comprises a mediate circuit board assembly 4, a housing 2, and a plurality of contacts 3. The mediate circuit board assembly 4 has a plurality of signal paths, to which signal cables 5 are connected, and the housing 2 houses this mediate circuit board assembly 4. The contacts 3 are retained in the housing 2 and connected to the signal paths of the mediate circuit board assembly 4, which is housed in the housing 2. Two double-sided circuit boards, each having at least the signal paths formed on the front face and a grounding path formed on the rear face, constitute the mediate circuit board assembly 4 when these two double-sided circuit boards are abutted with each other, connecting the grounding paths of their rear faces.
    Type: Grant
    Filed: December 11, 1995
    Date of Patent: October 21, 1997
    Assignee: Kel Corporation
    Inventors: Hisafumi Takahashi, Kouichi Uchiyama
  • Patent number: 5286214
    Abstract: A memory card connector has an ejection mechanism comprising an extraction plate which is mounted across a frame defining a card receiving compartment for reciprocal movement in the card insertion direction and has card releasing hooks for engaging the mating end of the card and a flange connecting to a driven rack of a rack and pinion mechanism a driving rack of which extends from a card release button exposed at the front of the compartment. The ejection mechanism is housed in a compartment formed in the frame laterally of the card receiving compartment and substantially coplanar therewith.
    Type: Grant
    Filed: December 28, 1992
    Date of Patent: February 15, 1994
    Assignee: Kel Corporation
    Inventor: Hisafumi Takahashi
  • Patent number: 5281152
    Abstract: A surface-mounted electronic connector in which board connecting end portions of contacts of the connector extend in mutually parallel, closely spaced apart, coplanar relation and are maintained spaced apart above the board by feet of equal height which depend from tips of respective end portions. The height of each foot is not less than the sum the above-board height of a connection portion of a conductive layer of the board and the height of a reflow solder layer or pad thereon.
    Type: Grant
    Filed: July 15, 1992
    Date of Patent: January 25, 1994
    Inventors: Hisafumi Takahashi, Naoki Sugita
  • Patent number: 5002498
    Abstract: A card-edge connector comprising a housing having a circuit-board insertion groove having both ends and formed in the wall face. A contact is fixedly inserted in the contact holes of the housing, so that an end of a circuit board is inserted in the contact. The circuit board is electrically connected to the contact when it is rotated to a position substantially perpendicular to the wall face and is held by the circuit-board holding members of the housing after the circuit board has been inserted slantwise in the circuit-board insertion groove. First lift preventing means and second lift preventing means are provided at the respective ends of the circuit-board insertion groove so as to prevent the circuit board from lifting from the housing.
    Type: Grant
    Filed: October 4, 1989
    Date of Patent: March 26, 1991
    Assignee: Kel Corporation
    Inventor: Hisafumi Takahashi