Patents by Inventor Masakazu Umemura

Masakazu Umemura 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: 9130331
    Abstract: A rotating connector includes a cable accommodation chamber formed between an outer case and an inner case in their radial direction, a flexible flat cable housed in the cable accommodation chamber, and multiple idlers housed in the cable accommodation chamber. The idlers are rotatably provided in a direction of an annular slidable member. The idlers are rotatable on their own axes. The flat cable is wound on an inner periphery of the outer case and an outer periphery of the inner case by way of a reversed portion of the flat cable. The flat cable is wound thereon in opposite directions. The idlers are pivotally supported by the slidable member so as to change a space between the idlers and the inner case and a space between the idlers and the outer case depending on winding of the flat cable.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: September 8, 2015
    Assignee: YAZAKI CORPORATION
    Inventors: Masakazu Umemura, Hideki Adachi, Tomoyoshi Kikkawa, Hiraku Tanaka
  • Publication number: 20130330946
    Abstract: A rotating connector includes a cable accommodation chamber formed between an outer case and an inner case in their radial direction, a flexible flat cable housed in the cable accommodation chamber, and multiple idlers housed in the cable accommodation chamber. The idlers are rotatably provided in a direction of an annular slidable member. The idlers are rotatable on their own axes. The flat cable is wound on an inner periphery of the outer case and an outer periphery of the inner case by way of a reversed portion of the flat cable. The flat cable is wound thereon in opposite directions. The idlers are pivotally supported by the slidable member so as to change a space between the idlers and the inner case and a space between the idlers and the outer case depending on winding of the flat cable.
    Type: Application
    Filed: June 7, 2013
    Publication date: December 12, 2013
    Inventors: Masakazu UMEMURA, Hideki ADACHI, Tomoyoshi KIKKAWA, Hiraku TANAKA
  • Patent number: 7168955
    Abstract: A rock arm having repulsion is provided in a protruding condition in a rotary case in a spiral cable unit, and an engagement portion with which a hook of the rock arm engages is formed in a male connector. The male connector engages with the spiral cable unit by the engagement of the hook of the rock arm with the engagement portion, to prevent bending of the rock arm, in the state with the female connector fitted in a fitting hood portion.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: January 30, 2007
    Assignee: Yazaki Corporation
    Inventors: Masakazu Umemura, Tsutomu Sawada
  • Publication number: 20050124177
    Abstract: A rock arm having repulsion is provided in a protruding condition in a rotary case in a spiral cable unit, and an engagement portion with which a hook of the rock arm engages is formed in a male connector. The male connector engages with the spiral cable unit by the engagement of the hook of the rock arm with the engagement portion, to prevent bending of the rock arm, in the state with the female connector fitted in a fitting hood portion.
    Type: Application
    Filed: December 8, 2004
    Publication date: June 9, 2005
    Inventors: Masakazu Umemura, Tsutomu Sawada
  • Publication number: 20050124193
    Abstract: A rock arm having repulsion is provided in a protruding condition in a rotary case in a spiral cable unit, and an engagement portion with which a hook of the rock arm engages is formed in a male connector. The male connector engages with the spiral cable unit by the engagement of the hook of the rock arm with the engagement portion, to prevent bending of the rock arm, in the state with the female connector fitted in a fitting hood portion.
    Type: Application
    Filed: December 6, 2004
    Publication date: June 9, 2005
    Inventors: Masakazu Umemura, Tsutomu Sawada
  • Patent number: 6004149
    Abstract: A clock spring comprises a cylindrical casing having a first connector, a cylindrical rotator disposed concentrically inside the casing, capable of rotating relative to the casing, and having a second connector, a carrier disposed rotatablly between the casing and the rotator, on which a rotatable cylindrical first roller is provided, a flexible cable in which one end thereof is connected to the second connector, is wound around an outer face of the rotator in a first direction, is reversed the winding direction into a second direction opposite to the first direction for being wound on an inner face of the outer casing in the second direction, and the other end thereof is connected to the first connector, a rotatable cylindrical second roller provided on the carrier next to the first roller, and a pillar-shaped first blocking member provided on that portion where between an outer face of the second roller and the inner face of the outer casing for preventing the flexible cable from invading the portion, the f
    Type: Grant
    Filed: August 6, 1998
    Date of Patent: December 21, 1999
    Assignee: Yazaki Corporation
    Inventors: Satoshi Ishikawa, Hiraku Tanaka, Masakazu Umemura
  • Patent number: 5735480
    Abstract: A relay apparatus for relatively rotating members includes a first member (rotating member) having an internal cylindrical portion, a second member (fixed member) having an external cylindrical portion which surrounds the internal cylindrical portion with a predetermined gap and is relatively rotated with respect to the internal cylindrical portion, a flexible flat cable which is stored along an annular space between the internal cylindrical portion and the external cylindrical portion to be spirally wound and which has an inner peripheral portion held by the internal cylindrical portion and an outer peripheral portion held by the external cylindrical portion, and a C-shaped moving member, movably arranged along the space, for inverting the flexible flat cable 13 in an opening portion 21c. One member of the first member 11 and the second member as rotatably driven and, has a flange formed on the cylindrical portion, and the moving member is arranged on the flange.
    Type: Grant
    Filed: August 7, 1996
    Date of Patent: April 7, 1998
    Assignee: Yazaki Corporation
    Inventors: Kazuya Arai, Masakazu Umemura, Hiroyuki Okamoto, Takeshi Sakakibara, Satoshi Ishikawa, Hiraku Tanaka, Kazuhito Sakai
  • Patent number: 5561266
    Abstract: A cable connector for connecting cable conductors (6A) of a flat cable (6) to wire conductors (41A, 42A, 43A) of a plurality of external wires (41, 42, 43), respectively comprises a T-shaped wire mounting plate (30) formed with a plurality of U-shaped grooves (31, 32, 33) and with a pair of guide bridges (34, 35). The U-shaped grooves hold the external wires on a first surface thereof in such a way that the wire conductors of the external wires are arranged being bent at a right angle and further projected from one end surface of the wire mounting plate, respectively. A pair of the guide bridges (34, 35) hold the fiat cable on a second surface thereof opposite to the first surface thereof in such a way that the cable conductors of the flat cable are arranged being projected from the same end surface of the wire mounting plate side by side with the projecting wire conductors of the external wires.
    Type: Grant
    Filed: September 6, 1994
    Date of Patent: October 1, 1996
    Assignee: Yazaki Corporation
    Inventors: Hiroyuki Okamoto, Hiromi Masuda, Masakazu Umemura, Kouji Koike, Tetsurou Muramatsu
  • Patent number: 5167539
    Abstract: The object of the present invention is to provide a noise suppressing connector adopting a noise filtering structure which is capable of reducing the manufacturing processes, eliminating the conventional problems (i.e., the occurrence of incomplete connections by soldering the destruction of the aluminum plate, and so on), and thereby improving the quality of the noise filtering structure itself. In order to attain the above object, the noise suppressing connector according to the present invention incorporates a metal casing having one or more terminal insertion holes in the bottom wall thereof and formed with a capacitor section around each of these insertion holes; a pin terminal inserted through the terminal insertion hole and electrically connected to the capacitor section using soldering; and an insulating housing incorporated into to the metal casing, wherein the capacitor section is directly connected to the metal casing.
    Type: Grant
    Filed: September 11, 1991
    Date of Patent: December 1, 1992
    Assignee: Yazaki Corporation
    Inventors: Hiroyuki Okamoto, Kunio Hoshino, Masakazu Umemura, Masami Katayama
  • Patent number: 5145413
    Abstract: The invention improves assembly efficiency by allowing an increased amount of assembly work to be automated. The noise suppressing connector incorporates a capacitor array having a plurality of individual electrodes arranged on the surface of a dielectric material and an earth electrode at the back; a plurality of lead terminals each having input/output portions and an intermediate portion, the intermediate portions being placed in contact with individual electrodes, said intermediate portions and the capacitor array being molded together within an insulating resin; and a metal housing connected with the earth electrode and adapted to accommodate and hold the molded resin block. An earth plate may be interposed between the earth electrode and the metal housing. Solder loading grooves may be provided to the metal housing at positions facing the earth electrode or earth plate to connect the earth electrode or earth plate with the metal housing by solder.
    Type: Grant
    Filed: July 16, 1991
    Date of Patent: September 8, 1992
    Assignee: Yazaki Corporation
    Inventors: Hiroyuki Okamoto, Kunio Hoshino, Masakazu Umemura, Sayoko Kitahara