Patents Assigned to Shimizu Machinery Co., Ltd.
  • Patent number: 5439187
    Abstract: A shaft for taking up toilet paper adapted to rotate circumferentially is maintained parallel with respect to supporting devices for supporting toilet paper. A take-up device is provided with fixing devices for maintaining the shaft for taking up toilet paper so as to rotate circumferentially parallel with respect to supporting devices for supporting toilet paper. The position of the shaft with respect to the supporting devices is accurately maintained parallel at all times, and thus, the taking-up pressure of toilet paper can be made uniform. Moreover, even if the shaft is rotated at high speed, toilet paper can accurately be taken up, thereby making it possible to improve the quality of the toilet paper roll.
    Type: Grant
    Filed: September 13, 1993
    Date of Patent: August 8, 1995
    Assignees: Shimizu Machinery Co., Ltd., Masukoh Paper Co., Ltd., Hiroshi Genda
    Inventor: Akira Shimizu
  • Patent number: 4783015
    Abstract: Disclosed are a toilet paper roll which is devoid of a cardboard core and has a 2-layer structure comprising a hard core layer portion formed by tightly rolling up a material toilet paper on a temporary take-up core which is eventually removed and an outer layer portion formed continuous to the core layer portion by rolling up the toilet paper less tightly than the core layer portion, over or surrounding the core layer portion, and a method of manufacture of such toilet paper roll.
    Type: Grant
    Filed: July 27, 1987
    Date of Patent: November 8, 1988
    Assignees: Shimizu Machinery Co., Ltd., Hiroshi Genda
    Inventor: Akira Shimizu