Patents by Inventor Yoshio Iinuma

Yoshio Iinuma 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: 4942453
    Abstract: A device for packaging many memory IC chips having a plurality of common connecting terminals on a main circuit board. A plurality of IC chips are packaged on an auxiliary board to make an IC chip unit, and a plurality of IC chip units are aligned on the main circuit board. The connections between unit-connecting terminals provided on the respective IC chip units and the main circuit board are made by means of wiring patterns on the main circuit board.
    Type: Grant
    Filed: September 15, 1988
    Date of Patent: July 17, 1990
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Yoshihiro Ishida, Yoshio Iinuma, Shingo Ichikawa
  • Patent number: 4868634
    Abstract: An IC-packaged device comprises a lower plate which has wiring patterns at least on an upper surface; an upper plate which has upper surface wiring patterns and at least an opening hole and are superimposed on the lower plate when used; and a plurality of IC chips which has a lot of connecting terminal groups mounted on the upper plate. In this structure, some of the connecting terminal groups of the plurality of IC chips are wire-bonded to the wiring patterns on the upper plate, while the other of the connecting terminal groups of the plurality of IC chips pass through the opening hole in the upper plate and are wire-bonded directly to the wiring patterns on the lower plate.
    Type: Grant
    Filed: February 22, 1988
    Date of Patent: September 19, 1989
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Yoshihiro Ishida, Yoshio Iinuma, Shingo Ichikawa
  • Patent number: 4688074
    Abstract: A connecting structure for a liquid crystal cell having a pair of glasses including a substrate glass, a liquid crystal material between the glasses, and a number of terminals provided on the substrate glass and electrically connected with display dots formed by the liquid crystal material. An LSI used in the display device has a plurality of terminals corresponding to the terminals on the substrate glass. The LSI is held by a holding plate in a predetermined position and the terminals of the LSI are pressed against the terminals on the substrate glass.
    Type: Grant
    Filed: December 13, 1985
    Date of Patent: August 18, 1987
    Assignee: Citizen Watch Co., Ltd.
    Inventor: Yoshio Iinuma
  • Patent number: 4643526
    Abstract: An IC chip is connected to terminal portions of conductive films on a lower substrate of a liquid crystal display panel by face down bonding. The IC chip and conductive films are coated with resin to protect the IC chip and films.
    Type: Grant
    Filed: May 7, 1985
    Date of Patent: February 17, 1987
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Haruo Watanabe, Eiichi Tajima, Masaaki Matsunaga, Toshihide Hirohara, Yoshio Iinuma, Naotake Ando, Shigeyuki Takahashi, Teruaki Takahashi
  • Patent number: 4144705
    Abstract: A timepiece circuit device including an upper frame, a lower frame and a print base board having a conductive pattern for mounting and electrically connecting a semiconductor device. At least one of said upper and lower frames is provided with a connecting portion electrically connecting electronic parts and a recess in which said electronic part is fitted and said semiconductor device is received. Said upper frame, said circuit base board and said lower frame are overlapped with each other thereby providing a circuit device having semiconductor devices capable of being miniaturized for a timepiece.
    Type: Grant
    Filed: April 19, 1978
    Date of Patent: March 20, 1979
    Assignee: Citizen Watch Co. Ltd.
    Inventor: Yoshio Iinuma
  • Patent number: 4083177
    Abstract: A liquid crystal display wrist watch is disclosed which comprises a supporting frame secured to a wrist watch substrate. The frame has two perpendicularly crossing supporting surfaces which cooperate with two corresponding reference sides of a liquid crystal cell to determine the position of exterior electrodes of the liquid crystal cell and segment electrodes of an electronic circuit. A holding frame plate is used for detachably urging the liquid crystal against the suppporting frame. A boundary plate and color filter are each sandwiched between a movement and a protective glass cover. A portion is provided for determining the position of the holding frame plate, with respect to either to the movement or an outer case.
    Type: Grant
    Filed: September 24, 1974
    Date of Patent: April 11, 1978
    Assignee: Citizen Watch Co. Ltd.
    Inventors: Katsuo Nishimura, Tetsuya Yasuda, Tomomi Murakami, Masateru Yoshida, Minoru Natori, Yoshio Iinuma
  • Patent number: 4075825
    Abstract: A watch body for an electronic watch containing an integrated circuit chip and a printed circuit board is disclosed. The watch body comprises an upper case and a bottom cover which are selectively interconnected one with the other. A lead package frame is sandwiched between the upper case and the bottom cover and contains a plurality of electrical leads disposed thereon and electrically coupled to the integrated circuit chip. The lead frame has first and second sides with the first side having a first cavity with the integrated circuit chip matingly engaged therein. The plurality of leads are disposed on the first side of the lead frame so as to surround this first cavity down the circuit chip. The second side of the lead frame has a second cavity with the printed circuit board disposed therein. By the use of the watch body of the instant invention, a significantly smaller number of components, a simpler manufacturing process is achieved.
    Type: Grant
    Filed: June 30, 1975
    Date of Patent: February 28, 1978
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Tomomi Murakami, Masaru Yoshida, Satoshi Kimura, Tetuya Yasuda, Yoshio Iinuma
  • Patent number: 4064689
    Abstract: A disk-shaped substrate supports on its front side a liquid-crystal cell bracketed by an upper and a lower glass plate and on its rear side an electric battery along with circuit elements for controlling the selective energization of various electrode leads of the cell to generate different digital symbols, the substrate being sandwiched between two flexible printed sheets whose conductors establish the necessary connections between the battery and the electrode leads of the cell. The connection between corresponding conductors of the two printed sheets is established by metal pins passing insulatedly through apertures in the substrate.
    Type: Grant
    Filed: April 7, 1976
    Date of Patent: December 27, 1977
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Tetsuya Yasuda, Yoshio Iinuma, Yuzo Maekawa, Toshikiyo Kato, Masaru Yoshida
  • Patent number: 4042861
    Abstract: An integrated circuit block assembly is provided with a base plate, a printed base carrying thereon a connecting and wiring pattern and a number of electrodes for connection with those on an integrated circuit chip, fine metallic wires, each being connected to one of the electrodes on said chip with one of said connecting electrodes on said printed base, an insulated protector for protecting said chip and said wires. In this assembly, the chip carries a large scale integrated circuit and the printed base is a flexible printed circuit sheet having a connecting pattern connected to a display means or other functional element.
    Type: Grant
    Filed: November 6, 1974
    Date of Patent: August 16, 1977
    Assignee: Citizen Watch Company Limited
    Inventors: Tetuya Yasuda, Yoshio Iinuma, Yuzo Maekawa
  • Patent number: 4020627
    Abstract: A liquid crystal display electronic watch comprises a metal substrate, whose upside and downside surfaces are insulated by a flexible print sheet. A liquid crystal cell and a time keeping decoder drive circuit are arranged on the upside of the substrate and other circuit elements are arranged beneath the downside thereof. The exteriorly operating parts are arranged around the periphery of the substrate. All of the electrical and mechanical operating members are arranged in a plane with respect to the substrate and so electrically connected and mechanically interlocked that date and/or week day are displayed with the least possible members. The watch is thin, small, simple in construction and reliable in operation.
    Type: Grant
    Filed: October 1, 1974
    Date of Patent: May 3, 1977
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Masateru Yoshida, Yoshio Iinuma, Tetuya Yasuda, Satoshi Kimura
  • Patent number: 3945193
    Abstract: A holder unit of an electronic watch for holding a battery for the latter in position within the interior space of the casing of the watch, in which a holding member is attached to the watch casing, main portion of the holding member being arranged in a hollow cylinder enclosing with small idle gaps around said battery and mounted in the manner mechanically independent from the driven device.
    Type: Grant
    Filed: January 25, 1974
    Date of Patent: March 23, 1976
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Tetuya Yasuda, Yoshio Iinuma