Patents Assigned to Sawa Corporation
  • Patent number: 8595891
    Abstract: A adhered substance removing device of the present disclosure includes a suction removal unit configured to suck and remove a liquid medium with which a wiping sheet is impregnated and adhered substances which is separated from the wiping sheet by an oscillation unit and re-adhered to a surface of the wiping sheet. The suction removal unit includes a cylindrical suction nozzle having inlet holes in a surface along which the wiping sheet is guided. and a suction pump configured to suck air from the suction nozzle. The Suction pump is connected to the suction nozzle, and a lid is detachably attached to an opening of the suction nozzle.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: December 3, 2013
    Assignee: Sawa Corporation
    Inventors: Yoshihiro Okamoto, Mitsuhiro Takeda, Takashi Kawamoto
  • Patent number: 8510911
    Abstract: A hinge, for automatically-closing a door which opens in both directions, includes a cylinder (2); an operating rod (3) to be rotatable and restricted from moving in the longitudinal direction; two substantially V-shaped grooves (33) provided on an outer periphery of the operating rod (3) in the cylinder (2) to oppose to each other; two spheres (55) provided engage the substantially V-shaped grooves (33); an upper piston (5) engaged with the spheres (55); a compression coil spring (4) disposed between the upper piston (5) and an upper end portion of the cylinder (2) and configured to urge the upper piston (5) to the other end side of the cylinder (2), and a fluid pressure shock absorbing mechanism configured to absorb a shock caused by the movement of the upper piston 5 to the other end side with a liquid pressure.
    Type: Grant
    Filed: January 28, 2009
    Date of Patent: August 20, 2013
    Assignee: Sawa Corporation
    Inventor: Takashi Sawa
  • Patent number: 8387210
    Abstract: An automatic door closing hinge is configured in such a manner that first balls (43) are engaged with a first cam groove (35) formed on an outer peripheral surface of an operating rod in a cylinder (2) at opposed positions so as to have a substantially V-shape at opposed positions thereof, the first balls (43) are engaged with a compression ring (4) urged downward by a compression coil spring (5), the movement of the first balls (43) with respect to the first cam groove (35) is in conjunction with the movement of the compression ring, second balls (65) are engaged with a second cam groove (36) formed under the first cam groove (35) and having substantially the same shape as the first cam groove (35), the second balls (65) are engaged with the piston (6), the movement of the second balls (65) with respect to the second cam groove (36) is in conjunction with the movement of the piston, and air on the lower side of the piston (6) in the cylinder is gradually flowed out according to the movement of the piston.
    Type: Grant
    Filed: November 27, 2007
    Date of Patent: March 5, 2013
    Assignees: Sawa Corporation, Takashi Sawa, Takashi Yamaguchi
    Inventor: Takashi Sawa
  • Publication number: 20110277268
    Abstract: A adhered substance removing device of the present disclosure includes a suction removal unit configured to suck and remove a liquid medium with which a wiping sheet is impregnated and adhered substances which is separated from the wiping sheet by an oscillation unit and re-adhered to a surface of the wiping sheet. The suction removal unit includes a cylindrical suction nozzle having inlet holes in a surface along which the wiping sheet is guided. and a suction pump configured to suck air from the suction nozzle. The Suction pump is connected to the suction nozzle, and a lid is detachably attached to an opening of the suction nozzle.
    Type: Application
    Filed: May 12, 2011
    Publication date: November 17, 2011
    Applicant: SAWA CORPORATION
    Inventors: Yoshihiro Okamoto, Mitsuhiro Takeda, Takashi Kawamoto
  • Publication number: 20100319260
    Abstract: A hinge for automatically-closing a door which opens in both directions with a shock absorbing function, which allows installation on a door which opens in both directions and is opened inward and outward, including a cylinder 2; an operating rod 3 attached to one end of the cylinder 2 so as to be rotatable and restricted from moving in the longitudinal direction; two substantially V-shaped grooves 33 provided on an outer periphery of the operating rod 3 in the cylinder 2 so as to oppose to each other; two spheres 55 provided so as to engage the substantially V-shaped grooves 33 and disposed so as to oppose to each other; an upper piston 5 engaged with the spheres 55 and moved in the cylinder 2 in the longitudinal direction in conjunction with the movement of the spheres 55 with respect to the substantially V-shaped groove 33; a compression coil spring 4 disposed between the upper piston 5 and an upper end portion of the cylinder 2 and configured to urge the upper piston 5 to the other end side of the cylinde
    Type: Application
    Filed: January 28, 2009
    Publication date: December 23, 2010
    Applicant: SAWA Corporation
    Inventor: Takashi Sawa
  • Publication number: 20100263289
    Abstract: An automatic door closing hinge configured to absorb a shock by an air damper which can be installed on a double swing door opening inward and outward and a double swing door structure provided with the automatic door closing hinge are provided.
    Type: Application
    Filed: November 27, 2007
    Publication date: October 21, 2010
    Applicants: Sawa Corporation, Takashi Yamaguchi
    Inventor: Takashi Sawa