Patents by Inventor Masakatsu Shimada

Masakatsu Shimada 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: 7573231
    Abstract: Provided is an interterminal connection structure capable of eliminating the precipitate adhering to the terminal with the installation operation, securing the electrically connected state of the terminal between a pair of members, and easily accommodating to design changes in the spring load. In a cordless handset of a domestic telephone, the conductive state of the terminals employed in the electrical connection between this cordless handset and battery charger is made to contact in a mutually intersecting manner, and, in addition, the terminal on the battery charger side is made to rotate and move pursuant to the installation operation of the cordless handset, and the contact position is gradually moved while maintaining this contact state via such rotating movement. Thus, even if there is a precipitate on the terminals, such precipitate will be chipped off due to the contact movement (sliding), and a loose connection can thereby be prevented.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: August 11, 2009
    Assignee: Uniden Corporation
    Inventors: Kenji Nagai, Yoshihiro Matsuyama, Masakatsu Shimada, Masaya Fujino, Akio Shogen
  • Publication number: 20050141701
    Abstract: Provided is an interterminal connection structure capable of eliminating the precipitate adhering to the terminal with the installation operation, securing the electrically connected state of the terminal between a pair of members, and easily accommodating to design changes in the spring load. In a cordless handset of a domestic telephone, the conductive state of the terminals employed in the electrical connection between this cordless handset and battery charger is made to contact in a mutually intersecting manner, and, in addition, the terminal on the battery charger side is made to rotate and move pursuant to the installation operation of the cordless handset, and the contact position is gradually moved while maintaining this contact state via such rotating movement. Thus, even if there is a precipitate on the terminals, such precipitate will be chipped off due to the contact movement (sliding), and a loose connection can thereby be prevented.
    Type: Application
    Filed: December 23, 2003
    Publication date: June 30, 2005
    Inventors: Kenji Nagai, Yoshihiro Matsuyama, Masakatsu Shimada, Masaya Fujino, Akio Shogen
  • Patent number: 5263879
    Abstract: A cigar lighter plug includes a slider therein slidable between first and second positions. At a first position of the slider, a contact spring is urged outward to a first radial position suitable for fitting the plug into a small size cigar lighter socket. At a second position of the slider, the contact spring is urged outward to a second radial position suitable for fitting the plug into a large size cigar lighter socket. In one embodiment, cooperation between a boss and depressions produces a click feel and sound to inform the user that an adjustment operation is completed. In another embodiment, a retention spring, generally similar to the contact spring, is moved to first and second radial positions during adjustment of the radial position of the contact spring.
    Type: Grant
    Filed: January 6, 1993
    Date of Patent: November 23, 1993
    Assignee: SMK Corporation
    Inventors: Motokazu Sasa, Masakatsu Shimada
  • Patent number: 4259965
    Abstract: In a skin electrode for connecting monitoring equipment to the surface of the skin which is separable into two assemblies: a base assembly adapted to be mounted to the surface of the skin and having a sensing element, and; a terminal assembly adapted to be releasably coupled with the base assembly and having a lead for connection to the monitoring equipment, an improvement wherein the terminal assembly is provided with a magnet while the base assembly is provided with a ferromagnetic element, whereby the releasable coupling and electrical connection of the assemblies may be ensured by the action of the magnet.
    Type: Grant
    Filed: March 23, 1979
    Date of Patent: April 7, 1981
    Assignee: TDK Electronics Co., Ltd.
    Inventors: Kotaro Fukuda, Yosinori Okamoto, Masakatsu Shimada, Toshiaki Kato, Katsuhiko Tabuchi, Makoto Shimura, Takashi Fujiwara