Patents by Inventor Tomohiko Tamada

Tomohiko Tamada 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: 7448884
    Abstract: In a connector adapted to be mounted on a connection object for connection to a mating connector, the connector includes contacts each of which has a contact portion placed on a contact portion side of the connector for connection to the mating connector and a terminal portion placed on a terminal portion side for connection to the connection object. The contacts have a plurality of signal contact members and a plurality of ground contact members. The signal contact members make a plurality of pairs. The ground contact members are arranged with spaces left therebetween. On the contact portion side, the pairs of the signal contact members are placed in the spaces, respectively. On the terminal portion side, the signal contact members and the ground contact members are separately arranged on parallel rows and the pairs of the signal contact members face the spaces, respectively.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: November 11, 2008
    Assignee: Japan Aviation Electronics Industry, Limited
    Inventors: Nobukazu Kato, Tomohiko Tamada, Hidenobu Takahashi, Kazushi Kamata, Toru Nomiyama
  • Patent number: 7448913
    Abstract: A connector which enables effective use of the space on a circuit board effectively, and facilitates impedance matching between contacts. The connector is comprised of a first connector section (1) and a second connector section (2). A receiving hole (11d) is formed in a first housing (11) of the first connector section (1), for receiving and holding a terminal section (71) of a first function expansion card (7). A plurality of contacts (12, 13) are arranged in the first housing (11), for electrically connecting the first function expansion card (7) to a printed wiring board (9). A first locking device (14) is disposed in the first housing (11), for locking a rear end of a second function expansion card (8). A receiving hole (21d) is formed in a second housing (21) of the second connector section (2), for receiving and holding a terminal section (81) of the second function expansion card (8).
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: November 11, 2008
    Assignee: Japan Aviation Electronics Industry, Limited
    Inventors: Yasufumi Yahiro, Nobukazu Kato, Tomohiko Tamada
  • Publication number: 20080014803
    Abstract: In a connector adapted to be mounted on a connection object for connection to a mating connector, the connector includes contacts each of which has a contact portion placed on a contact portion side of the connector for connection to the mating connector and a terminal portion placed on a terminal portion side for connection to the connection object. The contacts have a plurality of signal contact members and a plurality of ground contact members. The signal contact members make a plurality of pairs. The ground contact members are arranged with spaces left therebetween. On the contact portion side, the pairs of the signal contact members are placed in the spaces, respectively. On the terminal portion side, the signal contact members and the ground contact members are separately arranged on parallel rows and the pairs of the signal contact members face the spaces, respectively.
    Type: Application
    Filed: July 13, 2007
    Publication date: January 17, 2008
    Inventors: Nobukazu Kato, Tomohiko Tamada, Hidenobu Takahashi, Kazushi Kamata, Toru Nomiyama
  • Publication number: 20070264875
    Abstract: A connector which enables effective use of the space on a circuit board effectively, and facilitates impedance matching between contacts. The connector is comprised of a first connector section (1) and a second connector section (2). A receiving hole (11d) is formed in a first housing (11) of the first connector section (1), for receiving and holding a terminal section (71) of a first function expansion card (7). A plurality of contacts (12, 13) are arranged in the first housing (11), for electrically connecting the first function expansion card (7) to a printed wiring board (9). A first locking device (14) is disposed in the first housing (11), for locking a rear end of a second function expansion card (8). A receiving hole (21d) is formed in a second housing (21) of the second connector section (2), for receiving and holding a terminal section (81) of the second function expansion card (8).
    Type: Application
    Filed: April 26, 2007
    Publication date: November 15, 2007
    Inventors: Yasufumi Yahiro, Nobukazu Kato, Tomohiko Tamada
  • Patent number: 7108530
    Abstract: In a card fitting mechanism for receiving a card fitted thereto, a plurality of card receiving portions are arranged parallel to one another. Each of the card receiving portions is adapted to receive the card. A guiding member is disposed between adjacent ones of the card receiving portions so as to enter into adjacent ones of the card receiving portions. When the card is inserted in only one of the adjacent card receiving portions, the guiding member is moved by the card to serve as a guide for guiding the card that is inserted into another of the adjacent card receiving portions.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: September 19, 2006
    Assignees: Japan Aviation Electronics Industry, Limited, JAE Hirosaki, Ltd.
    Inventors: Akira Kimura, Kazushi Kamata, Nobukazu Kato, Tomohiko Tamada
  • Patent number: 6953356
    Abstract: A lock release mechanism for releasing an engagement with a counterpart connector (10) by moving a lock lever (2) engaging with the counterpart connector (10). A pull-tab (6) is connected to the lock lever. The lock lever is moved by a force pulling the pull-tab.
    Type: Grant
    Filed: November 5, 2002
    Date of Patent: October 11, 2005
    Assignee: Japan Aviation Electronics Industry, Limited
    Inventors: Kazuhito Hisamatsu, Akira Kimura, Nobukazu Kato, Tomohiko Tamada
  • Publication number: 20050048833
    Abstract: In a card fitting mechanism for receiving a card fitted thereto, a plurality of card receiving portions are arranged parallel to one another. Each of the card receiving portions is adapted to receive the card. A guiding member is disposed between adjacent ones of the card receiving portions so as to enter into adjacent ones of the card receiving portions. When the card is inserted in only one of the adjacent card receiving portions, the guiding member is moved by the card to serve as a guide for guiding the card that is inserted into another of the adjacent card receiving portions.
    Type: Application
    Filed: August 31, 2004
    Publication date: March 3, 2005
    Inventors: Akira Kimura, Kazushi Kamata, Nobukazu Kato, Tomohiko Tamada
  • Patent number: 6722899
    Abstract: In a connector (23) in which a number of contacts are placed inside a coupling portion (26), the contacts are grouped into a plurality of contact groups (31, 32, 33, 34, and 35) that correspond to intended uses, respectively. The contacts are collectively arranged in each of the contact groups. The coupling portion is held by an insulator (28) and is for coupling to a mating connector. The contacts are held by the insulator and connected to the mating connector when the coupling portion is coupled to the mating connector.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: April 20, 2004
    Assignee: Japan Aviation Electronics Industry, Limited
    Inventors: Nobukazu Kato, Tomohiko Tamada
  • Publication number: 20030148647
    Abstract: A lock release mechanism for releasing an engagement with a counterpart connector (10) by moving a lock lever (2) engaging with the counterpart connector (10). A pull-tab (6) is connected to the lock lever. The lock lever is moved by a force pulling the pull-tab.
    Type: Application
    Filed: November 5, 2002
    Publication date: August 7, 2003
    Applicant: JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED
    Inventors: Kazuhito Hisamatsu, Akira Kimura, Nobukazu Kato, Tomohiko Tamada
  • Publication number: 20030129865
    Abstract: In a connector (23) in which a number of contacts are placed inside a coupling portion (26), the contacts are grouped into a plurality of contact groups (31, 32, 33, 34, and 35) that correspond to intended uses, respectively. The contacts are collectively arranged in each of the contact groups. The coupling portion is held by an insulator (28) and is for coupling to a mating connector. The contacts are held by the insulator and connected to the mating connector when the coupling portion is coupled to the mating connector.
    Type: Application
    Filed: February 21, 2003
    Publication date: July 10, 2003
    Inventors: Nobukazu Kato, Tomohiko Tamada
  • Patent number: 6524119
    Abstract: In a connector in which a number of conductive contacts (23) are held by an insulator (21), the contacts are grouped into a plurality of contact groups (24) corresponding to intended uses, respectively. The contact groups are adjacent to one another in a first direction (A1). The contacts in each contact group are arranged in a second direction (A2) perpendicular to the first direction. The contact groups have a specific contact group which is located outermost in the first direction and assigned to high-speed signals.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: February 25, 2003
    Assignee: Japan Aviation Electronics Industry, Limited
    Inventors: Nobukazu Kato, Tomohiko Tamada, Yuko Nakatomi
  • Patent number: 6468110
    Abstract: In a shielded-cable connector (10) for use in connecting a mating connector with a shielded cable (13), a metal plate (22) is used to face a side surface of the shielded cable. A positioning portion (27) is engaged with an insulating inner sheath (15) of the shielded cable. Thus, a predetermined positional relationship is given between the metal plate and a core wire (14) of the shielded cable. The core wire is connected to a contact (11) held by an insulator housing (21). The contact has a contacting portion (18) to be connected to the mating connector and a cable connecting portion 19 to be connected to the core wire.
    Type: Grant
    Filed: April 12, 2001
    Date of Patent: October 22, 2002
    Assignee: Japan Aviation Electronics Industry, Limited
    Inventors: Kazuhiro Fujino, Koji Hayashi, Nobukazu Kato, Tomohiko Tamada
  • Patent number: 6371797
    Abstract: In a connector device for use in connecting a connecting member (20) which has an end portion provided with a conductive portion, a plug connector (10) is removably coupled to a receptacle connector (30) by fitting therebetween. In the plug connector, an insulator (1) defines a receiving space (1a) for receiving the end portion of the connecting member. A conductive contact (3) is held in the insulator and formed to become in contact with a receptacle-side contact (33) of the receptacle connector when the plug connector is coupled to the receptacle connector. A slider member (5) is slidably inserted in the receiving space to make the conductive portion be brought in contact with the conductive contact in the receiving space.
    Type: Grant
    Filed: September 27, 1999
    Date of Patent: April 16, 2002
    Assignee: Japan Aviation Electronics Industry, Limited
    Inventors: Masayuki Kikuchi, Tomohiko Tamada
  • Publication number: 20010055901
    Abstract: In a connector in which a number of conductive contacts (23) are held by an insulator (21), the contacts are grouped into a plurality of contact groups (24) corresponding to intended uses, respectively. The contact groups are adjacent to one another in a first direction (A1). The contacts in each contact group are arranged in a second direction (A2) perpendicular to the first direction. The contact groups have a specific contact group which is located outermost in the first direction and assigned to high-speed signals.
    Type: Application
    Filed: June 13, 2001
    Publication date: December 27, 2001
    Applicant: Japan Aviation Electronics Industry, Limited
    Inventors: Nobukazu Kato, Tomohiko Tamada, Yuko Nakatomi
  • Publication number: 20010031579
    Abstract: In a shielded-cable connector (10) for use in connecting a mating connector with a shielded cable (13), a metal plate (22) is used to face a side surface of the shielded cable. A positioning portion (27) is engaged with an insulating inner sheath (15) of the shielded cable. Thus, a predetermined positional relationship is given between the metal plate and a core wire (14) of the shielded cable. The core wire is connected to a contact (11) held by an insulator housing (21). The contact has a contacting portion (18) to be connected to the mating connector and a cable connecting portion 19 to be connected to the core wire.
    Type: Application
    Filed: April 12, 2001
    Publication date: October 18, 2001
    Applicant: Japan Aviation Electronics Industry, Limited
    Inventors: Kazuhiro Fujino, Koji Hayashi, Nobukazu Kato, Tomohiko Tamada
  • Patent number: 5667874
    Abstract: A part-packaging embossed tape includes a tape member on which a plurality of part-housing portions are arranged in succession in a longitudinal direction of the tape member. Each of the part-housing portions is arranged obliquely relative to a width direction of the tape member which is orthogonal to the longitudinal direction thereof. Recessed portions are further arranged around the part-housing portions, while maintaining given non-recessed spaces between the adjacent part-housing portions. With this arrangement, the embossed tape can be wound around a reel by bending the non-recessed spaces between the adjacent part-housing portions.
    Type: Grant
    Filed: September 8, 1995
    Date of Patent: September 16, 1997
    Assignee: Japan Aviation Electronics Industry, Ltd.
    Inventors: Keisuke Nakamura, Tomohiko Tamada