Patents by Inventor Shoji Umesato

Shoji Umesato 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: 5522727
    Abstract: A right-angle electrical connector comprising a plurality of contacts supported on an insulator body, the contacts having a length equal to one another and having opposite ends projecting in different directions normal to each other and coming into contact with first and second connection objects, respectively, to be electrically connected by the connector. Each of the contacts comprises two portions extending in the different directions. The ratio of two portions of each one of contacts is different from that of the different one of contacts. In order to avoid production of various contacts which are different from one another in shape and dimension, the connector comprises a main element of an insulator substrate and conductive strip lines formed thereon, and contact elements like one another fixed to the insulator substrate to project from, and in directions normal to, adjacent side edges of the insulator substrate, respectively.
    Type: Grant
    Filed: September 16, 1994
    Date of Patent: June 4, 1996
    Assignees: Japan Aviation Electronics Industry, Limited, NEC Corporation
    Inventors: Kazuki Saito, Takenori Kudo, Shoji Umesato, Masahiro Yamada
  • Patent number: 5475568
    Abstract: A power supply structure for a multichip package is provided to improve the transmission performance of signals. Cases are fitted onto one face of a ceramic substrate. On the other face are aligned substrates. On each of the substrates are erected I/O pins. The I/O pins are connected to signal pins of LSIs via the ceramic substrate's internal layer. On side faces of the substrates are provided power supply pads. To the power supply pads are connected the power supply pins of the LSIs via the ceramic substrate's internal layer. When power is to be supplied, electroconductive bars are inserted between the substrates. The electroconductive bars supply power to the LSIs via the power supply pads. A cable is connected to one of the I/O pins.
    Type: Grant
    Filed: April 28, 1994
    Date of Patent: December 12, 1995
    Assignee: NEC Corporation
    Inventor: Shoji Umesato
  • Patent number: 5065941
    Abstract: An apparatus for carrying out connection and disconnection of circuit member to an electrical connector has an inner frame for regulating a space for a circuit to be mounted, an outer frame, disposed outside the inner frame, for supporting the inner frame in such a manner as to move the inner frame in a predetermined direction only, a wedge member which is disposed between the outer frame and the inner frame in such a fashion as to be movable in a direction normal to the predetermined direction, and which moves the inner frame in the predetermined direction when the wedge member is moved, and a drive apparatus for externally driving the wedge member.
    Type: Grant
    Filed: January 19, 1990
    Date of Patent: November 19, 1991
    Assignees: Japan Aviation Electronics Industry, Ltd., NEC Corporation
    Inventors: Takao Suzuki, Atsuhito Noda, Mitsuo Komoto, Shoji Umesato
  • Patent number: 5064390
    Abstract: A coaxial pin array connector comprises a top member having guide holes corresponding to coaxial cables, and an intermediate, conductive member having throughholes, respectively corresponding to and aligned with the guide holes. A bottom, insulative member is provided having first throughholes for admitting signal pins of a circuit board and second throughholes for admitting grounding pins of the circuit board and recesses for receiving power pins of the circuit board. Conductive cylindrical hollow structures are respectively positioned in the throughholes of the intermediate member and extend between the top and bottom members to allow the coaxial cable pins to be admitted from the guide holes to the bottom member and make electrical contact with the signal pins.
    Type: Grant
    Filed: September 12, 1990
    Date of Patent: November 12, 1991
    Assignee: NEC Corporation
    Inventors: Shoji Umesato, Yoshikatsu Okada, Katsuhiko Sakamoto
  • Patent number: 5044973
    Abstract: For facilitating an electrical connection of a conductive connection pin (7) to a conductive contact (11) held to a base insulator (13), an electrical connector includes a preload pin (23) which is for carrying out beforehand displacement of a contact portion (21) of the conductive contact at a first position. The preload pin is held to a slider (19) which is placed between the base insulator and a cover insulator (17) and which is movable in a predetermined direction. The cover insulator and the slider have guide and elongated holes (15, 25), respectively, for passing the connection pin therethrough. The elongated hole is greater than the connection pin in a size of the predetermined direction. Therefore, it is possible without movement of the connection pin to move the preload pin in the predetermined direction to a second position at which the preload pin does not carry out the displacement of the contact portion.
    Type: Grant
    Filed: January 19, 1990
    Date of Patent: September 3, 1991
    Assignees: Japan Aviation Electronics Industry, Limited, NEC Corporation
    Inventors: Atsuhito Noda, Osamu Hashiguchi, Mitsuo Komoto, Shoji Umesato
  • Patent number: 4988312
    Abstract: A coaxial connector comprising a first insulator (29), a second insulator (31), and a straight-line contact (21) disposed between the first and second insulators is disclosed. The straight-line contact comprises a first conductive plate and a second conductive plate, which are superimposedly combined, wherein each of the first and second conductive plates includes a first contact (25), a second contact (27), and a base plate (23) from which the first and second contacts extend in the same directions, thus including a pair of the base plates. The first contact and the second contact are arranged alternately in parallel rows in the longitudinal direction of the base plate. The first insulator comprises, on the side facing the second insulator, a groove (49) for accommodating the end portions of the first and second contacts for supporting thereof, and a guide means for guiding a mating element which is to be connected to the straight-line contact.
    Type: Grant
    Filed: April 4, 1990
    Date of Patent: January 29, 1991
    Assignees: Japan Aviation Electronics Industry, Limited, NEC Corporation
    Inventors: Takao Suzuki, Katsumi Takekawa, Tetsuro Tokaichi, Shoji Umesato
  • Patent number: 4976624
    Abstract: In an IC socket in which contactors are disposed along the inner wall surface of an insulating housing chamber into which a leg portion of an insulating cover is inserted, each contactor has one end portion bent in the direction of insertion of the leg portion to form a folded-back portion and has lugs which project out from both marginal edges of the contactor near the bent portion. In the inner wall surface of the chamber there are formed engaging recesses corresponding to the contactors. Each contactor is fixedly disposed with its bent portion held in contact with the inner wall surface of the chamber and with the lugs engaged with the engaging recesses in the inner wall surface of the chamber.
    Type: Grant
    Filed: January 17, 1990
    Date of Patent: December 11, 1990
    Assignees: Japan Aviation Electronics Industry Limited, NEC Corporation
    Inventors: Shinichi Ishizuka, Takao Suzuki, Shoji Umesato, Yoshikatsu Okada
  • Patent number: 4887974
    Abstract: A top housing, which has formed therein arrays of first housing chambers and first pin insertion holes respectively communicating therewith, and a bottom housing, which has formed therein arrays of second housing chambers and second pin insertion holes respectively communicating therewith, are assembled together so that the corresponding first and second housing chambers intercommunicate. A socket contactor is housed across the corresponding first and second housing chambers. The top and bottom housings are held together by a frame so that they are slidable relative to each other. Terminal pins of an IC are inserted into the first housing chambers through the first pin insertion holes and pin conductors of a printed board are inserted into the second housing chambers through the second pin insertion holes. By sliding the top and bottom housings relative to each other, each socket contactor is bent, and by its spring force, the socket contactor is urged against the terminal pin and the pin conductor.
    Type: Grant
    Filed: January 27, 1989
    Date of Patent: December 19, 1989
    Assignees: Japan Aviation Electronics Industry, Limited, NEC Corporation
    Inventors: Yoshiaki Ichimura, Katumi Takegawa, Yoshinori Mizusawa, Mitsuo Komoto, Shoji Umesato
  • Patent number: 4880399
    Abstract: A socket for an IC, which is made up of a cover having an insulating protrusion and an insulating housing having a recess for receiving the protrusion. The cover includes a flat member which has made therethrough a plurality of arrays of pin insertion holes for insertion of pins of the IC or the like, and the insulating protrusion provided on the underside of the cover and extending along the arrays of pin insertion holes, guide grooves communicating with the pin insertion holes, respectively, being formed in side wall surfaces of the insulating protrusion. Contact pieces are held on side walls of the insulating housing.
    Type: Grant
    Filed: January 25, 1989
    Date of Patent: November 14, 1989
    Assignees: Japan Aviation Electronics Industry, Limited, NEC Corporation
    Inventors: Yoshiaki Ichimura, Shinichi Ishizuka, Mitsuo Komoto, Shoji Umesato
  • Patent number: 4832611
    Abstract: For electrically connecting a conductive terminal member (13) to an electric circuit board (12), an electrical connector includes a contact member (30) which comprises a terminal pin element (31) and a mating contact element (32) as individual parts. The terminal pin element is inserted into a through hole (14) and secured to the electric circuit board by soldering. The mating contact element is mated with the terminal pin element within an insulator housing (16) so that it is possible to correct position error of a contact portion (42) of the mating contact element. The conductive terminal member is inserted into the insulator housing and is then moved by a driving member (17) which is slidable along the insulator housing. Therefore, the conductive terminal member is brought into contact with a contract portion of the mating contact element. As a result, electrical connection is reliably made between the terminal member and an electrical circuit on the electric circuit board.
    Type: Grant
    Filed: October 15, 1987
    Date of Patent: May 23, 1989
    Assignees: Japan Aviation Electronics Industry, Limited, NEC Corporation
    Inventors: Atsuhito Noda, Yoshiaki Ichimura, Mitsuo Komoto, Shoji Umesato
  • Patent number: 4806109
    Abstract: A shielded electrical connector comprises a housing having contact sections of electrical contact members disposed in passages of the housing and exposed terminal sections extending outwardly and downwardly from a rear surface of the housing for electrical connection with signal paths of a printed circuit board. A shield plate extends along a row of terminal sections and has ground terminals electrically connected to ground tabs of contact members and ground terminals for electrical connection with ground paths of the printed circuit board.
    Type: Grant
    Filed: January 26, 1988
    Date of Patent: February 21, 1989
    Assignee: AMP Incorporated
    Inventors: Sakae Manabe, Takashi Kamono, Tetsuro Tokaichi, Shoji Umesato
  • Patent number: 4519660
    Abstract: An electrical connector for electrically connecting terminal pins of a circuit package to a circuitry of another circuit board having quasi-terminal pins for elastically pre-bending pairs of spring arms of contact elements in the connector. The connector is provided with an insulator base member for embracing the contact elements, and an insulator cover member slidably overlying the base member. The base member has recesses for permitting the spring arm pair to elastically bend. The cover member has penetrating holes for introducing the conductive pins into the recesses. The quasi-terminal pins are attached to the cover member adjacent to the penetrating holes, respectively, each of which is inserted between the spring arms and are in press-contact with them. Thus, the spring arms are pre-bent to facilitate an insertion of the terminal pin into a space between spring arms. The circuit package is adapted to the connector so that the terminal pins are introduced into the recesses through the penetrating holes.
    Type: Grant
    Filed: March 15, 1984
    Date of Patent: May 28, 1985
    Assignees: Japan Aviation Electronics Industry, Limited, NEC Corporation
    Inventors: Yoshiaki Ichimura, Atsuhito Noda, Tetsuro Tokaichi, Shoji Umesato
  • Patent number: 4456318
    Abstract: An IC socket for a flat IC package comprises a socket substrate, a cover member, a rotary lever, and a locking/unlocking mechanism so as to obtain stable, reliable contact and stable, easy release of contact between the conductors of the flat IC package and the contact pieces of the IC socket. The locking/unlocking mechanism makes use of sliding movement of the cover member on the socket substrate on the basis of the rotation of the rotary lever.
    Type: Grant
    Filed: August 11, 1982
    Date of Patent: June 26, 1984
    Assignees: Yamaichi Electric Mfg. Co., Ltd., Nippon Electric Co., Ltd.
    Inventors: Sueji Shibata, Shoji Umesato