Patents by Inventor Kensaku Takata

Kensaku Takata 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: 6217363
    Abstract: A connector includes a first connector fixed to a first attachment member in a first direction, a holder fixed on a second attachment member, a second connector supported on said holder in a second direction which is opposite to said first direction, wherein said second connector is advanced in the second direction so as to connect with said first connector when said first attachment member and second attachment member are relatively approached.
    Type: Grant
    Filed: June 21, 1999
    Date of Patent: April 17, 2001
    Assignees: Harness System Technologies Research, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventor: Kensaku Takata
  • Patent number: 6036510
    Abstract: A connector connecting structure, includes a first connector supported by a holder and a second connector to be connected to the first connector. In the connector connecting structure, there is provided in the holder a support portion including a recessed groove or the like for supporting the first connector in such a manner that the first connector can be slid in a direction where the two connectors can be connected together, while two slide members slidable and displaceable in a direction at right angles to the connecting direction of the two connectors are respectively supported between the holder and first connector.
    Type: Grant
    Filed: April 27, 1999
    Date of Patent: March 14, 2000
    Assignees: Harness System Technologies Research, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Junichi Ono, Kensaku Takata, Souji Kihira
  • Patent number: 5954528
    Abstract: A connector connection structure includes a first connector supported on a holder and a second connector connectable to the first connector. The holder has support portions in the form of U-shaped grooves, for supporting the first connector such that the first connector is slidable in a direction of connection of the first and second connectors relative to each other. Swingable levers are swingably supported between the holder and the first connector, and there are provided drive portions that swingingly displace the swingable levers in response to the sliding movement of the first connector. Operating portions are also provided to increase driving forces of the swingable levers, and transmit the driving forces to the second connector, thereby driving the two connectors in a direction to connect the two connectors together.
    Type: Grant
    Filed: April 8, 1997
    Date of Patent: September 21, 1999
    Assignees: Harness System Technologies Research, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Junichi Ono, Kensaku Takata, Hiroyuki Hayashi
  • Patent number: 5921791
    Abstract: A connector connecting structure comprises a first connector supported by a holder and a second connector to be connected to the first connector. In the connector connecting structure, there is provided in the holder a support portion including a recessed groove and the like for supporting the first connector in such a manner that the first connector can be slid in a direction where the two connectors can be connected together, while two slide members slidable and displaceable in a direction at right angles to the connecting direction of the two connectors are respectively supported between the holder and first connector.
    Type: Grant
    Filed: April 4, 1997
    Date of Patent: July 13, 1999
    Assignees: Harness System Technologies Research, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Junichi Ono, Kensaku Takata, Souji Kihira
  • Patent number: 5823815
    Abstract: A first connector is connected to a second connector while inserting an instrument unit into a unit insertion recess in an instrument panel, and the unit is positioned by pins, and is fixed. The unit insertion recess has an introductory portion and an open portion, and guide grooves for respectively guiding stabilizers formed on the unit are formed in the introductory portion. The second connector is displaceably mounted. When the instrument unit reaches a position where the second connector is slightly fitted in the first connector, and the pins on the panel are not yet passed respectively through positioning holes in the instrument unit, the stabilizers are disengaged respectively from the guide grooves to be received in the open portion, so that the position limitation is released.
    Type: Grant
    Filed: March 28, 1997
    Date of Patent: October 20, 1998
    Assignees: Harness System Technologies Research, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventor: Kensaku Takata
  • Patent number: 5800201
    Abstract: A connector assembly for a wire harness includes first and second connectors. The connector assembly has a simple structure. The assembly effectively protects electric wires for a wire harness which is provided in a second unit and facilitates to interconnect the first and second connectors when the second unit is coupled to a first unit. In the connector assembly, a protector (WP) for a wire harness includes a protector body (18) which protects the wire harness and a connector holder (20) which supports the second connector (C2) connected to a distal end of the electric wires in the wire harness. The protector (WP) is provided in the second unit while the first connector (C1) to be coupled to the second connector (C2) is secured to the first unit. The securing position is set so that the connectors (C1, C2) are opposed to each other when the units are coupled to each other.
    Type: Grant
    Filed: December 9, 1996
    Date of Patent: September 1, 1998
    Assignees: Sumitomo Wiring Systems, Ltd., Harness System Technologies Research, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Kensaku Takata, Junichi Ono
  • Patent number: 5791922
    Abstract: A connector assembly including a first connector having female terminals which are short-circuited through a short-circuiting terminal while the first connector is not connected to a second one. When the second connector is plugged into the first connector, an insulating piece of the second connector breaks the short-circuit connection between the female terminals. The short-circuiting terminal has contact portions. At least one of the short-circuiting terminal contact portions has a side extension. The second connector has a rib adapted to press the contact portions to form a gap between the short-circuiting terminals and the female terminals. The insulating piece is inserted between the gap thus formed, so that it encounters practically no resistance. Accordingly, it is possible to reduce the thickness of the insulating piece and thus to improve the long-term reliability of the connector assembly.
    Type: Grant
    Filed: August 23, 1996
    Date of Patent: August 11, 1998
    Assignees: Sumitomo Electric Industries, Ltd., Sumitomo Wiring Systems, Ltd.
    Inventors: Kensaku Takata, Satoshi Tasano, Hitoshi Okumura, Masaji Suzuki, Mitsuru Itou
  • Patent number: 5764316
    Abstract: A lighting system has a light source (2), a liquid crystal dimmer plate (4) for scattering a desired quantity of light from the light source (2), and a control power supply (5) for controlling a light scattering rate or effect of the liquid crystal dimmer plate (4). A light component transmitted through the liquid crystal dimmer plate (4) can be controlled by controlling the scattering effect of the dimmer plate (4). The so controlled light can be used as an illuminating light for a camera for example.
    Type: Grant
    Filed: September 28, 1993
    Date of Patent: June 9, 1998
    Assignees: Nippon Hoso Kyokai, Sumitomo Electric Industries, Ltd.
    Inventors: Kuniharu Takizawa, Hideo Fujikake, Hiroshi Tachikawa, Osamu Kobayashi, Yoshiaki Tanaka, Masanori Nakamura, Takamichi Kasahara, Kensaku Takata, Morihiko Katsuda, Tohru Kashiwagi
  • Patent number: 5631665
    Abstract: An illumination apparatus includes a liquid crystal device (L) disposed in the optical path of light projected from a light source (P) and a driving circuit (D) connected to the liquid crystal device for applying a special driving voltage to a composite film (1) of the device (L). The applied driving voltage alternately causes the composite film (1) to attain an opaque state and a transparent state. The time periods of the alternating voltage pulses are varied, thereby changing the ratio of the duration of the opaque state to the duration of the transparent state per unit time period, and thus controlling the power of light transmitted through the composite film (1) without undesirably altering the color spectrum of the transmitted light.
    Type: Grant
    Filed: June 28, 1994
    Date of Patent: May 20, 1997
    Assignees: Nippon Hoso Kyokai, Sumitomo Electric Industries, Ltd.
    Inventors: Kuniharu Takizawa, Hideo Fujikake, Tsunehiro Hirabayashi, Yoshiaki Tanaka, Kensaku Takata, Satoshi Takano, Tohru Kashiwagi
  • Patent number: 5591042
    Abstract: A connector assembly with a bad-connection-preventive function is disclosed. It is simple in structure, made up of a small number of parts, and has high long-term reliability. It has a second connector having an integral locking arm and a first connector. Protrusions A and B are formed on side faces of the locking arm and the side faces of the first connector, respectively. A spring is mounted in the first connector. By inserting the second connector into the first connector, the locking arm is pushed upward by the protrusions B, so that its shoulder portion abuts the spring. Thus, the spring is compressed when the second connector is further pushed into the first connector. The connectors are thus urged in a direction away from each other by the spring. The spring disengages when the connectors are completely coupled together. When pulling the second connector out of the first connector, the protrusions A pass under the protrusions B.
    Type: Grant
    Filed: October 26, 1995
    Date of Patent: January 7, 1997
    Assignees: Sumitomo Electric Industries, Ltd., Sumitomo Wiring Systems, Ltd.
    Inventors: Kensaku Takata, Satoshi Takano, Nori Inoue, Mitsuru Itoh, Hitoshi Okumura, Masaji Suzuki
  • Patent number: 5422036
    Abstract: A liquid crystal display device having a pair of electrodes at least one of which is transparent and a composite film which is placed between the pair of electrode and contains a low molecular weight liquid crystal, a side-chain type polymer liquid crystal having a backbone of polyoxetane and a mesogen group in a side chain, and an electrolyte, which composite film has a self-supporting property and prevents formation of a short-circuit between the-electrodes.
    Type: Grant
    Filed: September 6, 1994
    Date of Patent: June 6, 1995
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Yuhsuke Kawakami, Kouji Hara, Tohru Kashiwagi, Junichi Ono, Kensaku Takata
  • Patent number: 5331448
    Abstract: A liquid crystal device having a pair of electrodes at least one of which is transparent and a mixture film of a side chain type liquid crystalline polymer and at least two low molecular weight liquid crystals which film is sandwiched between said pair of electrodes, wherein said mixture film contains 0.005 to 1% by weight of an electrolyte based on a total weight of the mixture film. This liquid crystal device has a high response speed and memory and is used in a variable traffic control sign, a light-adjusting window, a liquid crystal glare-proof mirror, and the like.
    Type: Grant
    Filed: October 5, 1992
    Date of Patent: July 19, 1994
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Tisato Kajiyama, Junichi Ono, Tohru Kashiwagi, Kouji Hara, Kensaku Takata
  • Patent number: 5216415
    Abstract: A method of driving a matrix-type liquid crystal display device utilizing a liquid crystal layer sandwiched between a plurality of scanning electrodes and a plurality of signal electrodes extending generally perpendicular to the scanning electrodes, which comprises the steps of erasing a display screen by bringing it into either a light transmitting state or a light scattering state, writing by which pixels each at a point of intersection between the scanning and signal electrodes are selectively reversed in optical state, and retaining each of the pixels in the optical state once assumed immediately after the writing step. During the erasing step, all of the pixels are applied with a high alternating voltage or a high direct current voltage.
    Type: Grant
    Filed: December 13, 1991
    Date of Patent: June 1, 1993
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Jyunichi Ono, Kenji Kamada, Kensaku Takata, Tohru Kashiwagi, Tisato Kajiyama