Patents by Inventor Toshihito Sakai

Toshihito Sakai 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: 9199409
    Abstract: A stretching apparatus capable of optimally inhibiting neck-in of a film when the film is stretched in an MD (Machine Direction), has an advancing mechanism, a take-in mechanism, and film-holding unit placed at both end portions in a TD (Transverse Direction) of a transfer path of film between the mechanisms. The film-holding unit has a plurality of upper holding rollers placed in parallel at intervals in the MD of the film above the transfer path of film, and a plurality of lower holding rollers placed opposite to upper holding rollers below the transfer path of film such that the plurality of lower holding rollers work together with the plurality of upper holding rollers to sandwich the film vertically between the rollers. Upper holding rollers and lower holding rollers are rotatably supported such that their rotational axes are inclined outward in the TD of film toward a downstream side of the MD of film.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: December 1, 2015
    Assignee: UBE INDUSTRIES, LTD.
    Inventors: Takeru Fujinaga, Yasuhiro Nagoshi, Toshihito Sakai, Hiroyuki Ikeuchi
  • Publication number: 20130037988
    Abstract: A stretching apparatus capable of optimally inhibiting neck-in of a film when the film is stretched in an MD (Machine Direction), has an advancing mechanism, a take-in mechanism, and film-holding unit placed at both end portions in a TD (Transverse Direction) of a transfer path of film between the mechanisms. The film-holding unit has a plurality of upper holding rollers placed in parallel at intervals in the MD of the film above the transfer path of film, and a plurality of lower holding rollers placed opposite to upper holding rollers below the transfer path of film such that the plurality of lower holding rollers work together with the plurality of upper holding rollers to sandwich the film vertically between the rollers. Upper holding rollers and lower holding rollers are rotatably supported such that their rotational axes are inclined outward in the TD of film toward a downstream side of the MD of film.
    Type: Application
    Filed: March 29, 2011
    Publication date: February 14, 2013
    Applicant: UBE INDUSTRIES, LTD.
    Inventors: Takeru Fujinaga, Yasuhiro Nagoshi, Toshihito Sakai, Hiroyuki Ikeuchi