Patents by Inventor Yoshitaka Satou

Yoshitaka Satou 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).

  • Slant winding electromagnetic coil and ignition coil for internal combustion engine using same
    Patent number: 6252483
    Abstract: An electromagnetic coil which may be employed as an ignition coil for an internal combustion engine is disclosed. The electromagnetic coil includes a lower voltage winding portion and a higher voltage winding portion. The lower voltage winding portion is wound around a spool and includes a plurality of winding layers overlapped with each other and inclined at a given angle to the length of the spool. Each of the winding layers includes a collection of turns made up of a leading portion of wire. The higher voltage winding portion is wound around the spool adjacent the lower voltage winding portion and includes a plurality of winding layers overlapped with each other and inclined at a given angle to the length of the spool. Each of the winding layers includes a collection of turns made up of a trailing portion of the wire.
    Type: Grant
    Filed: December 14, 1999
    Date of Patent: June 26, 2001
    Assignee: Nippondenso Co., Ltd.
    Inventors: Keisuke Kawano, Kazutoyo Oosuka, Masami Kojima, Akimitsu Sugiura, Yoshitaka Satou, Katsumi Nakazawa
  • Process for producing dialklylnaphthalenes
    Patent number: 6204422
    Abstract: A rational technical process for producing dialkylnaphthalenes from petroleum-derived starting materials which exist in abundance is established.
    Type: Grant
    Filed: November 4, 1998
    Date of Patent: March 20, 2001
    Assignee: Fuji Oil Company, Ltd.
    Inventors: Toshio Tsutsui, Takumi Sasaki, Yoshitaka Satou, Osamu Kubota, Shinichi Okada, Masaki Fujii
  • Slant winding electromagnetic coil and ignition coil for internal combustion engine using same
    Patent number: 6060973
    Abstract: An electromagnetic coil which may be employed as an ignition coil for an internal combustion engine is disclosed. The electromagnetic coil includes a lower voltage winding portion and a higher voltage winding portion. The lower voltage winding portion is wound around a spool and includes a plurality of winding layers overlapped with each other and inclined at a given angle to the length of the spool. Each of the winding layers includes a collection of turns made up of a leading portion of wire. The higher voltage winding portion is wound around the spool adjacent the lower voltage winding portion and includes a plurality of winding layers overlapped with each other and inclined at a given angle to the length of the spool. Each of the winding layers includes a collection of turns made up of a trailing portion of the wire.
    Type: Grant
    Filed: August 16, 1996
    Date of Patent: May 9, 2000
    Assignee: Nippondenso Co., Ltd.
    Inventors: Keisuke Kawano, Kazutoyo Oosuka, Masami Kojima, Akimitsu Sugiura, Yoshitaka Satou, Katsumi Nakazawa
  • Ignition coil for an internal combustion engine
    Patent number: 5771870
    Abstract: An ignition coil for an internal combustion engine, having a seal between the ignition coil and a plug hole of the engine. An air passage is provided only on a head portion and a pipe portion of the ignition coil to permit air to pass. Pressure change in the plug hole can be equalized with the atmosphere through the air passage. Therefore, it becomes easy to make the seal and to attach the seal to the ignition coil because the seal does not have any air passage.
    Type: Grant
    Filed: December 6, 1996
    Date of Patent: June 30, 1998
    Assignee: Denso Corporation
    Inventors: Yoshitaka Satou, Kazutoyo Oosuka, Masami Kojima, Yoshihiro Shimoide
  • Ignition coil and method of manufacturing the same
    Patent number: 5758624
    Abstract: An ignition coil is composed of a transformer, an igniter, a housing accommodating them and a fixing portion disposed at a place within easy access from an opening of the housing to fix the igniter, a terminal pin disposed at a place of the housing within easy access from the opening and connected to the control circuit and a connector pin fixed to the housing and connected to the terminal pin. The igniter and fixing portion have a member for adjusting relative location therebetween to connect the connector pin and terminal pin without stress.
    Type: Grant
    Filed: February 20, 1997
    Date of Patent: June 2, 1998
    Assignee: Denso Corporation
    Inventors: Yoshitaka Satou, Kazutoyo Oosuka, Masami Kojima, Masato Ichikawa, Mamoru Urushizaki