Patents by Inventor Hiroshi Ujimoto

Hiroshi Ujimoto 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: 5091039
    Abstract: The present invention generally resides in method and apparatus for intermittently applying pieces of elastic band severed into a predetermined length onto a moving continuous web at predetermined positions.
    Type: Grant
    Filed: March 26, 1990
    Date of Patent: February 25, 1992
    Assignee: Uni-Charm Corporation
    Inventors: Hiroshi Ujimoto, Hironori Nomura, Taiji Shimakawa, Junji Shinohara, Shigetoyo Kobayashi, Hiroki Yamamoto
  • Patent number: 5064489
    Abstract: In a method for making disposable absorbent garments, elastic flaps which are brought in close contact around the wearer's legs are formed separately from a topsheet and a backsheet and bonded to the topsheet which is being transferred to an assembly line before the topsheet is placed upon the backsheet.
    Type: Grant
    Filed: February 5, 1990
    Date of Patent: November 12, 1991
    Assignee: Uni-Charm Corporation
    Inventors: Hiroshi Ujimoto, Hironori Nomura, Toshinori Yamamoto
  • Patent number: 4969970
    Abstract: An apparatus for modifying and joining a sheet of foam to a non-elastic component that includes slitting the foam to form a plurality of openings, forming the slit foam into a U shaped slack condition and joining surfaces of the foam sheet to a non-elastic component adhering the two together.
    Type: Grant
    Filed: December 21, 1988
    Date of Patent: November 13, 1990
    Assignee: Uni-Charm Corporation
    Inventors: Migaku Suzuki, Masamitsu Yamamoto, Hiroshi Ujimoto, Yoshikazu Tanaka, Hiromi Aono
  • Patent number: 4943340
    Abstract: In the manufacture of disposable clothing such as diapers, elastic waistbands are attached to respective longitudinal ends of diapers while stretched in transversely extended condition. The diapers are arranged in end-to-end relation as a continuous of diaper precursors which is fed past a transfer station. A continuous sheet of elastic is coated on one side with adhesive except adjacent longitudinal edges thereof and the leading end is repeatedly severed transversely into successive individual elastic members which are then spaced apart and progressively stretched into extended condition while being fed one-by-one to the transfer station where the coated side is applied by a transfer drum to the web thereby transferring the elastic members at predetermined spacings to the web. The elastic members are then severed into two pieces while also severing through the web in a single cutting action to define adjacent ends of diapers with respective pieces of elastic members attached in extended condition.
    Type: Grant
    Filed: January 12, 1989
    Date of Patent: July 24, 1990
    Assignee: Uni-Charm Corporation
    Inventors: Hiroshi Ujimoto, Hironori Nomura, Toshinori Yamamoto