Patents by Inventor Hisashi Samejima

Hisashi Samejima 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: 5158000
    Abstract: This disclosure relates to a method for slicing a cylindrical elastic body, for example, a slab or broad belt prior to being cut into belts or rings of a certain width, by a two-shaft system, and its apparatus. The apparatus includes a) a drive shaft, of which the top end thereof can be released from its support, of which the root end thereof is connected to its drive unit, the drive shaft having a radially projecting part at the root end; b) a freely rotatable shaft extending in parallel with and at a constant distance from the drive shaft in a horizontal plane, of which the top end can be released from it support and can be tilted in vertical direction, and c) a cutting unit which has a cutter positioned perpendicular to the axial direction of the drive shaft, and which can move towards the drive shaft and can travel in the axial direction of the drive shaft.
    Type: Grant
    Filed: March 21, 1991
    Date of Patent: October 27, 1992
    Assignee: Bando Kagaku Kabushiki Kaisha
    Inventors: Hisashi Samejima, Fumiya Yamamoto
  • Patent number: 5153415
    Abstract: This disclosure relates to a counter for elastic rings, comprising a screw having a spiral groove which is slightly wider than the width of an elastic ring and is slightly deeper than the thickness of the elastic ring. The screw has an open discharge end, and a plurality of sorting rollers are loosely mounted in series on a support shaft located above and parallel to the screw and are independently capable of rotation and vertical movement. The sorting rollers contact a spiral ridge of the screw, and are arranged such that while the screw is rotated and the elastic rings are fed to the feed end thereof, the elastic rings are loosely moved into the spiral groove of the screw by the sorting rollers, and then sequentially delivered from the discharge end of the screw to a counting means.
    Type: Grant
    Filed: May 6, 1990
    Date of Patent: October 6, 1992
    Assignee: Bando Kagaku Kabushiki Kaisha
    Inventors: Hisashi Samejima, Fumiya Yamamoto
  • Patent number: 5006059
    Abstract: A mold for injection molding including a cylindrical outer mold and a columnar inner mold. The inner mold is provided, on its external circumferential surface, with a large number of tooth-shaped grooves extending in the axial direction thereof, and it is placed inside the outer mold to define an annular cavity between the external circumferential surface of the inner mold and the internal circumferential surface of the outer mold. The outer mold is provided with a plurality of runners extending axially near the internal circumferential surface. The runners are arranged at regular annular intervals along the circumference of the outer mold. Furthermore, slit-shaped gates are formed along the full length of the runners, the gates opening into the internal circumferential surface of the outer mold, in such a way that the inflow of molten molding material flowing from each runner into the cavity is gradually reduced along the runner from the upstream side towards the downstream end.
    Type: Grant
    Filed: February 22, 1990
    Date of Patent: April 9, 1991
    Assignee: Bando Kagaku Kabushiki Kaisha
    Inventors: Keizo Hakoda, Hisashi Samejima
  • Patent number: 4972772
    Abstract: A thermal transfer machine comprising a freely rotatable belt attachment roller onto which an endless belt can be removably attached with the surface to be imprinted facing outwardly, a freely rotatable thermal roller placed so as to be movable toward and away from said belt attachment roller, a pair of support arms placed parallel to each other across an open space so that said thermal roller is positioned between them, and a marking paper support which has securing fixtures for stretching the marking paper across the space between the support arms and which is capable of moving in a reciprocating motion in the front-to-back direction of the thermal roller.
    Type: Grant
    Filed: January 10, 1990
    Date of Patent: November 27, 1990
    Assignee: Bando Kagaku Kabushiki Kaisha
    Inventors: Hisashi Samejima, Kenji Kido, Masahiro Oka