Patents by Inventor Jun Ohbuchi

Jun Ohbuchi 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: 6031278
    Abstract: An IC card, and manufacturing method thereof, are provided in which a pair of upper and lower metal panels are fixed to the top and bottom surfaces of a resin frame. Projections projecting upward or downward and having a given height are formed at a given distance from the outside edges of the frame. Cut-outs capable of fitting on the projections are provided on the metal panels, and the metal panels are assembled on the top and bottom surfaces of the frame with the cut-outs fitted on the corresponding projections. A portion of each projection is then deformed by pressing on the metal panels from above or below under a predetermined condition so that the metal panels are riveted to the frame.
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: February 29, 2000
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shigeo Onoda, Katsunori Ochi, Jun Ohbuchi
  • Patent number: 5994769
    Abstract: An IC card that allows fixing the obverse and reverse metal panels to the plastic frame without using adhesion and allows to make conducting electrically between both the metal panels. The IC card 1 includes an electrical circuit board 3 in which electronic components 4 are incorporated, a connector 5 to be connected to an end portion of the electric circuit board, a frame 2 which constitutes an outer frame of the card and a pair of metal panels 6, 7 which cover an obverse and reverse sides of the card.
    Type: Grant
    Filed: June 24, 1996
    Date of Patent: November 30, 1999
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shigeo Onoda, Jun Ohbuchi, Makoto Omori
  • Patent number: 5982624
    Abstract: In an IC card, a frame for connecting a board for mounting electronics components is covered by upper and lower panels. A main connector for connecting the IC card to a computer is provided at one end of the frame. Further, one or more subconnectors to be connected to external systems are provided on the board and the pins of the subconnectors extend towards openings in the upper panel. The subconnectors are supported between the board and the upper panel. Thus, various kinds of subconnectors for various functions can be used with the IC card. In a modified example, a subconnector is provided opposite the main connector on the upper panel, and the pins thereof extend in a direction parallel to the board.
    Type: Grant
    Filed: August 6, 1997
    Date of Patent: November 9, 1999
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shigeo Onoda, Tomomi Morii, Makoto Omori, Jun Ohbuchi, Yasuhiro Murasawa
  • Patent number: 5952713
    Abstract: A non-contact IC card and a method and apparatus for manufacturing the IC card. The IC card has a small thickness and is manufactured at a low cost, automatically. Electronic parts are mounted on a circuit pattern on a surface of a resin sheet. A filling resin covers the elcetronic parts and fills gaps between them. An electronically insulating plastic material on the filling resin wraps around the filling resin, contacting its side surfaces and saide surfaces of the resin sheet. The plastic material provides added protection to the electronic parts. In a method of manufacturing the non-contact IC card, the laminated structure of the resin sheet, filling resin, and plastic material is subjected to two sequential severing steps. In the first severing step, only the resin sheet and the filling resin are severed, generally in the shape of an IC card that is to be completed.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: September 14, 1999
    Inventors: Kenichi Takahira, Jun Ohbuchi, Yasuhiro Murasawa
  • Patent number: 5912806
    Abstract: An IC card (1) has a shape of a substantially flat rectangular parallelepiped. The IC card (1) has electronic devices (2) including integrated circuits, a substrate (3) and a frame (5) for supporting the electronic devices (2), a first panel (6c) covering the upper surface of the frame (5), and a second panel (6d) covering the lower surface of the frame (5). Hereupon, the first panel (6c) is directly mounted to the frame (5) in such a manner that each of the left and right end portions (15) of the first panel (6c) is bent twice in accordance with the outer surface of the frame (5) and further each of edges of the left and right end portions (15) is fastened to the lower surface of the frame (5).
    Type: Grant
    Filed: December 24, 1996
    Date of Patent: June 15, 1999
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shigeo Onoda, Katsunori Ochi, Jun Ohbuchi, Makoto Omori
  • Patent number: 5774339
    Abstract: An IC card includes a first cover including a first flat panel portion and a first upright wall portion formed therein adjacent a perimeter of the flat panel portion so as to extend transverse to the flat panel portion, and a second cover including a second flat panel portion and a second upright wall portion formed therein adjacent a perimeter of the flat panel portion so as to extend transverse to the flat panel portion. The first upright wall portion defines a chamber in cooperation with a portion of the first flat panel portion. The first and second covers are mated together with the first and second upright wall portions bonded together in a butt fashion.
    Type: Grant
    Filed: December 2, 1996
    Date of Patent: June 30, 1998
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Jun Ohbuchi, Hiroshi Miura, Kiyotaka Nishino, Shigeo Onoda, Tetsuro Washida, Makoto Omori
  • Patent number: 5719746
    Abstract: An IC card comprises a module with an electric circuit and two panels adhered to each other to cover the module between them. The two panels are adhered with an adhesive with a sufficient adhesion strength and seals the module with no path of air to the outside of the IC card. Airtight sealing of the IC card in realized in various ways. For example, a groove having a varying width is provided in one of the panels for applying an adhesive, while a groove engaging to the groove is provided in the other of the panels. When the two panels are adhered to each other, gas channels may be formed in the groove at portions with narrower widths, while an adhesive in the groove at portions with wider widths fills the gas channels due to viscosity. In another way, a protrusion provided in one of the panels has an edge opposite to a groove provided in the other of the panels. Thus, the groove is kept air-tight. In a different way, an adhesive having a high viscosity at curing temperature is used.
    Type: Grant
    Filed: January 17, 1996
    Date of Patent: February 17, 1998
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Jun Ohbuchi, Shigeo Onoda, Katsunori Ochi, Makoto Omori, Tetsuro Washida, Kiyotaka Nishino
  • Patent number: 5671123
    Abstract: An IC card including an electric circuit board and have face and back metallic panels that include a housing and are attached to a resin frame. The IC card has a discharge pattern formed on the electric circuit board for discharging static electricity applied to the metallic panels, a conductor elastically disposed between one of the metallic panels and the discharge pattern for electrically coupling one of the metallic panels with the discharge pattern, and a ground pattern formed on the electric circuit board with the ground pattern separated by a given distance A from the discharge pattern for routing the static electricity to a card connector. The given distance A is a distance necessary for the static electricity to start discharging at a given voltage. A given distance needed for discharge can be maintained precisely through a simple manufacturing process. A fluctuation in discharge start voltage can therefore be minimized. This results in a highly reliable product.
    Type: Grant
    Filed: November 14, 1995
    Date of Patent: September 23, 1997
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Makoto Omori, Katsunori Ochi, Jun Ohbuchi, Tetsuro Washida
  • Patent number: 5661636
    Abstract: An IC card with an on-board hard disk unit comprising a frame; a circuit board inside the frame; and a hard disk unit mounted on the circuit board. The IC card also has a metal front panel supported by the frame, and covering the entire IC card, including the hard disk unit. Thus, the outer surface of the IC card is made stronger, and the hard disk is protected from static electricity. The metal front panel includes a first portion where the IC card is relatively thin and a second, bulging portion where the IC card is relatively thick. The bulging portion accommodates the hard disk unit. The front panel may include a vent or mesh.
    Type: Grant
    Filed: October 12, 1995
    Date of Patent: August 26, 1997
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shigeo Onoda, Jun Ohbuchi, Makoto Omori, Takeshi Uenaka, Tomomi Morii
  • Patent number: 5585617
    Abstract: A non-contact IC card capable of communicating with external equipment at various communication frequencies. An antenna circuit of variable frequency and a frequency switching circuit for supplying communication clock signals of variable frequency to a modulator-demodulator circuit are provided so that communication is performed by switching a constant of the antenna circuit and the frequency of the communication clock signal generated from the frequency switching circuit in accordance with the frequency of external equipment with which communication is effected.
    Type: Grant
    Filed: July 11, 1995
    Date of Patent: December 17, 1996
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Jun Ohbuchi, Shigeru Furuta, Tetsuro Washida
  • Patent number: 5363274
    Abstract: A memory card having no ordinary type circuit board and a reduced thickness. Insulating layers are disposed on reverse surfaces of a pair of metallic panels, and circuit patterns are formed on the insulating layers. A plurality of electronic parts are mounted on the metallic panels by, for example, being soldered to the circuit patterns. The pair of metallic panels on which the electronic parts are mounted are fitted and bonded to openings formed in a frame of the card so that the electronic parts are accommodated inside the frame facing each other.
    Type: Grant
    Filed: February 19, 1992
    Date of Patent: November 8, 1994
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Makoto Omori, Jun Ohbuchi, Hajime Maeda, Yasushi Kasatani
  • Patent number: 5327010
    Abstract: An IC card includes a substrate, semiconductor devices mounted on at least one of the major surfaces of the substrate and a casing in which the substrate with the semiconductor devices mounted on it is housed. The casing includes a frame and panels bonded to the frame on the opposite sides of the frame by means of adhesive layers. The semiconductor devices are prevented from being bonded to the panel via the adhesive layers at locations on the adhesive layers facing the semiconductor devices.
    Type: Grant
    Filed: July 17, 1990
    Date of Patent: July 5, 1994
    Assignees: Ryoden Kasei Co., Ltd., Mitsubishi Denki Kabushiki Kaisha
    Inventors: Takeshi Uenaka, Jun Ohbuchi, Shigeo Onoda, Makoto Omori, Hajime Maeda, Toru Tachikawa
  • Patent number: 5313364
    Abstract: An IC card arranged so that a connector cannot come off a frame during an assembly process in which the connector and a circuit board are accommodated in the frame and panels are thereafter attached to obverse and reverse surfaces of the frame. Projections on sides of the connector and resilient engaging/fixing hooks with oblique surfaces on the frame are engaged. As the connector is forced into the frame, the projections of the connector are brought into engagement with and temporarily deflect the engaging/fixing hooks of the frame. The connector is thereby fixed firmly on the frame.
    Type: Grant
    Filed: December 3, 1992
    Date of Patent: May 17, 1994
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Makoto Omori, Jun Ohbuchi, Hajime Maeda, Hiroshi Miura, Tomomi Hamada, Takeshi Uenaka
  • Patent number: 5173841
    Abstract: A semiconductor device card and a method of manufacturing the card. A frame includes an integral spacer which fills a dead space on a circuit board to eliminate the need for positioning a separate spacer in the dead space on the circuit board and fixing the spacer in place with a bonding sheet or the like. In a semiconductor device card in which a spacer for filling a dead space on the circuit board is bonded to a corresponding panel, a recess is formed on the surface of the spacer bonded to the obverse or reverse panel to reduce undulations occurring in the panel surface.
    Type: Grant
    Filed: March 25, 1991
    Date of Patent: December 22, 1992
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Takeshi Uenaka, Jun Ohbuchi, Hajime Maeda, Toru Tachikawa, Shigeo Onoda
  • Patent number: 5038250
    Abstract: An IC card of the present invention comprises a panel having resilient projections and a frame having recesses corresponding to the resilient projections, and the panel is mounted on the frame by engaging the respective resilient projections with the respective recesses. Thus, the panel can be securely attached to the panel.
    Type: Grant
    Filed: August 7, 1990
    Date of Patent: August 6, 1991
    Assignees: Ryoden Kasei Co. Ltd., Mitsubishi Denki Kabushiki Kaisha
    Inventors: Takeshi Uenaka, Jun Ohbuchi