Patents by Inventor Shigeyuki Matunaga

Shigeyuki Matunaga 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: 9021634
    Abstract: A stretcher including an upper frame for mounting a lifter thereon, a front leg pivotably attached to the upper frame, a rear leg pivotably attached to the upper frame, a fixed caster attached to one end of the front leg, a swivel caster attached to one end of the rear leg, and an auxiliary swivel caster attached to the front leg, wherein the upper frame is vertically adjustable by folding the front and rear legs relative to the upper frame, and wherein the auxiliary swivel caster is positioned relative to the fixed caster such that the auxiliary swivel caster is in contact with the ground when the upper frame is fully lowered and the front leg is folded away from the rear leg, and the auxiliary swivel caster is out of contact with the ground when the upper frame is fully lowered and the front leg is folded toward the rear leg.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: May 5, 2015
    Assignee: Matunaga Manufacturing Co., Ltd.
    Inventors: Kazuyuki Goto, Noriyuki Matunaga, Shigeyuki Matunaga
  • Publication number: 20140103677
    Abstract: A stretcher including an upper frame for mounting a lifter thereon, a front leg pivotably attached to the upper frame, a rear leg pivotably attached to the upper frame, a fixed caster attached to one end of the front leg, a swivel caster attached to one end of the rear leg, and an auxiliary swivel caster attached to the front leg, wherein the upper frame is vertically adjustable by folding the front and rear legs relative to the upper frame, and wherein the auxiliary swivel caster is positioned relative to the fixed caster such that the auxiliary swivel caster is in contact with the ground when the upper frame is fully lowered and the front leg is folded away from the rear leg, and the auxiliary swivel caster is out of contact with the ground when the upper frame is fully lowered and the front leg is folded toward the rear leg.
    Type: Application
    Filed: December 20, 2013
    Publication date: April 17, 2014
    Applicant: Matunaga Manufactory Co., Ltd.
    Inventors: Kazuyuki Goto, Noriyuki Matunaga, Shigeyuki Matunaga
  • Publication number: 20110266821
    Abstract: According to the present invention, when a stretcher mounted in an ambulance car is used at an intermediate position with legs being folded, the stretcher can be moved forward and backward and left and right by rotatable casters. The stretcher (100) is provided with front leg fixed casters (23) fixed to front legs of the stretcher (100), and rotatable auxiliary casters (24) provided above the casters (23). When the stretcher (100) is set to the intermediate position, rotatable auxiliary casters (39) contact the ground in place of the front leg fixed casters (23), and together with the rotatable rear casters (24), make the stretcher (100) movable forward and backward and left and right.
    Type: Application
    Filed: May 5, 2011
    Publication date: November 3, 2011
    Applicant: MATUNAGA MANUFACTORY CO., LTD.
    Inventors: Kazuyuki Goto, Noriyuki Matunaga, Shigeyuki Matunaga
  • Publication number: 20040111798
    Abstract: In a stretcher (100) comprising an upper frame (11) for placing a litter on an upper portion thereof having casters (41) and (42) in the front and rear portions, and a slide mechanism for changing up/down the position of the upper frame (11), the stretcher (100) is provided with a non-step stopper mechanism for stopping the sliding in the slide mechanism in a non-step manner. As a result, the height of the stretcher (100) can be changed up/down smoothly without rendering pain or uneasiness to a patient.
    Type: Application
    Filed: January 29, 2004
    Publication date: June 17, 2004
    Inventors: Shigeyuki Matunaga, Hiromi Matuki