Patents by Inventor Yoshihiko Ooyama

Yoshihiko Ooyama 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: 11697004
    Abstract: To provide a new balloon catheter enabling formation of, with high dimensional accuracy and excellent shape adaptability with respect to a balloon, an additional structure such as a blade and a reinforcement member to be additionally provided to the balloon. In this balloon catheter 10 provided with an expandable/contractible balloon 14 on the distal end side of a catheter 12, an additional structure 36 having a prescribed pattern is formed through electroforming or the like directly onto an inner circumferential surface 34 and/or an outer circumferential surface 82 of the balloon 14.
    Type: Grant
    Filed: February 18, 2020
    Date of Patent: July 11, 2023
    Inventors: Yoshihiko Sano, Yasushi Ooyama, Katsuhiro Hiejima
  • Publication number: 20130027164
    Abstract: A reactor has a cylindrical coil which is energized to create a magnetic flux, a core composed of magnetic powder mixed resin, the coil being buried in the core. The reactor has an inner core which is provided in an inner periphery of the coil and extends along an axial direction of the coil. The reactor has a case in which the coil, the core and the inner core are disposed. The case has a projection which projects inside of the case and a concave portion which is concave toward a projecting direction of the projection. The case including the projection and concave portion is formed in one piece by using die casting.
    Type: Application
    Filed: July 27, 2012
    Publication date: January 31, 2013
    Inventor: Yoshihiko OOYAMA
  • Patent number: 5633577
    Abstract: A battery charger includes a primary side circuit, a transformer, a secondary side circuit and a control circuit. The secondary side circuit includes a first output unit and a second output unit. The battery charges a main battery and an auxiliary battery. The first output unit, which is connected to a main battery, includes an integrated rectifier-converter and a smoothing circuit. The integrated rectifier-converter is formed using MOSFETs. When charging the auxiliary battery with power from the main battery, power from the main battery is converted by the integrated rectifier-converter to AC power which induces power in an output winding of a transformer connected to the auxiliary battery.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: May 27, 1997
    Assignee: Nippondenso Co., Ltd.
    Inventors: Hiroshi Matsumae, Yoshihiko Ooyama, Keiichiro Banzai