Patents by Inventor Yoshihiro Muraoka

Yoshihiro Muraoka 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).

  • Publication number: 20140343459
    Abstract: A spasticity measurement apparatus includes: a leg mounting fixture including a lower leg mounting portion mounted on a lower leg of a subject for fixation, and a foot receiving portion coupled to a lower end portion of the lower leg mounting portion and having a heel receiving portion and a toe receiving portion for respectively receiving a heel and a toe of a foot leading to the lower leg, the toe receiving portion being disposed relatively rotatably around the heel receiving portion in an approaching rotation direction bringing the toe receiving portion closer to the lower leg mounting portion; a rotation inhibition apparatus inhibiting relative rotation when the foot receiving portion rotates relative to the lower leg mounting portion in the approaching direction; and a muscular contraction force measurement apparatus measuring a muscular contraction force acting in a rotation direction.
    Type: Application
    Filed: December 5, 2012
    Publication date: November 20, 2014
    Applicant: TOMEI BRACE CO., LTD.
    Inventors: Naoichi Chino, Yoshihiro Muraoka, Hiroki Ishihama, Shoji Okumura
  • Patent number: 8463390
    Abstract: An electrostimulator includes a boost circuit supplying a stimulus signal, first and second electrodes disposed on a skin surface, detecting a voluntary myoelectric signal and giving the stimulus signal, an amplification circuit amplifying the voluntary myoelectric signal, a controller controlling the stimulus signal in accordance with the voluntary myoelectric signal, an H-bridge circuit including first and third switches connected in series and connected to the second electrode, and second and fourth switches connected in series and connected to the first electrode, the first to the fourth switches being connected in parallel, an isolated DC-DC converter supplying a power to the controller and the amplification circuit, a regulator outputting a midpoint voltage of a power-supply voltage, and a third electrode connected to the regulator and a reference terminal of the amplification circuit and disposed on the skin surface.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: June 11, 2013
    Assignee: Health Science Technology Transfer Center Japan Health Sciences Foundation
    Inventor: Yoshihiro Muraoka
  • Publication number: 20120239112
    Abstract: An electrostimulator comprises a boost circuit supplying a stimulus signal, first and second electrodes disposed on a skin surface, detecting a voluntary myoelectric signal and giving the stimulus signal, an amplification circuit amplifying the voluntary myoelectric signal, a controller controlling the stimulus signal in accordance with the voluntary myoelectric signal, an H-bridge circuit comprising first and third switches connected in series and connected to the second electrode, and second and fourth switches connected in series and connected to the first electrode, the first to the fourth switches being connected in parallel, an isolated DC-DC converter supplying a power to the controller and the amplification circuit, a regulator outputting a midpoint voltage of a power-supply voltage, and a third electrode connected to the regulator and a reference terminal of the amplification circuit and disposed on the skin surface.
    Type: Application
    Filed: May 3, 2012
    Publication date: September 20, 2012
    Applicants: HEALTH SCIENCES FOUNDATION
    Inventor: Yoshihiro MURAOKA
  • Patent number: 4968826
    Abstract: Novel platinum complexes of the formula: ##STR1## wherein R.sup.1 and R.sup.2 each identically of differently is lower alkyl, or R.sup.1 and R.sup.2 taken together form --(CH.sub.2)m--, and m is an integer from 2 to 5, and antitumor agents comprising the compound (I), which are effective against cisplatin-resistant ascitic murine leukemia, murine leukemia, and solid tumor, with slight hemotoxicity and nephrotoxicity.
    Type: Grant
    Filed: March 16, 1990
    Date of Patent: November 6, 1990
    Assignee: Shionogi & Co., Ltd.
    Inventors: Tetsushi Totani, Osamu Shiratori, Yoshihiro Muraoka