Patents by Inventor Junpei Kozasa

Junpei Kozasa 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: 8919232
    Abstract: In a process of transporting a strip-shaped optical film F, the optical film F is cut to a predetermined length. Thereafter, the sheet-like optical films F divided by the cutting are intermittently transported while the strip-shaped optical film F is fed by the predetermined length such that a portion to be cut next reaches a cutting action position. Further, a leading one of the sheet-like optical films F in the intermittent transport process is transported to a continuous transport process such that a rear end thereof passes the intermittent transport process in a subsequent intermittent transport operation. Herein, the sheet-like optical film F is transported to the downstream-side continuous transport process following the intermittent transport process to continuously transport the optical film F.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: December 30, 2014
    Assignees: Nitto Denko Corporation, Akebono Machine Industries Co., Ltd.
    Inventors: Junpei Kozasa, Shoji Negishi
  • Publication number: 20140041497
    Abstract: In a process of transporting a strip-shaped optical film F, the optical film F is cut to a predetermined length. Thereafter, the sheet-like optical films F divided by the cutting are intermittently transported while the strip-shaped optical film F is fed by the predetermined length such that a portion to be cut next reaches a cutting action position. Further, a leading one of the sheet-like optical films F in the intermittent transport process is transported to a continuous transport process such that a rear end thereof passes the intermittent transport process in a subsequent intermittent transport operation. Herein, the sheet-like optical film F is transported to the downstream-side continuous transport process following the intermittent transport process to continuously transport the optical film F.
    Type: Application
    Filed: October 22, 2013
    Publication date: February 13, 2014
    Applicants: AKEBONO MACHINE INDUSTRIES CO., LTD., NITTO DENKO CORPORATION
    Inventors: Junpei Kozasa, Shoji Negishi
  • Patent number: 8601921
    Abstract: In a process of transporting a strip-shaped optical film F, the optical film F is cut to a predetermined length. Thereafter, the sheet-like optical films F divided by the cutting are intermittently transported while the strip-shaped optical film F is fed by the predetermined length such that a portion to be cut next reaches a cutting action position. Further, a leading one of the sheet-like optical films F in the intermittent transport process is transported to a continuous transport process such that a rear end thereof passes the intermittent transport process in a subsequent intermittent transport operation. Herein, the sheet-like optical film F is transported to the downstream-side continuous transport process following the intermittent transport process to continuously transport the optical film F.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: December 10, 2013
    Assignees: Nitto Denko Corporation, Akebono Machine Industries Co., Ltd.
    Inventors: Junpei Kozasa, Shoji Negishi
  • Patent number: 8524536
    Abstract: Nip rollers 11 and 12 each including a pair of upper and lower rollers are disposed on an upstream side and a downstream side with a portion to be cut of an optical film F located therebetween. In the nip roller 12, a center axis C of the upper roller 12b is displaced relative to a center axis L of the drive roller 12a in a direction away from the portion to be cut. Upon cutting of the polarizing film F, the upper rollers 11b and 12b are simultaneously moved downward, so that a timing at which the downstream nip roller 12 nips the polarizing film F is delayed. Further, the nip roller 12 pulls the polarizing film F in the direction away from the portion to be cut, so that tension is applied to the polarizing film F. In this state, the polarizing film F is cut by a laser device 10.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: September 3, 2013
    Assignees: Nitto Denko Corporation, Akebono Machine Industries Co., Ltd.
    Inventors: Kouta Nakai, Junpei Kozasa, Yoshio Takahashi, Masahiro Hosoi
  • Patent number: 8257638
    Abstract: A suction table 9 is disposed at a cutting action position for a polarizing film F, and holding blocks 9a and 9b, which are different in height from each other, are disposed in proximity to each other along a transport direction on a surface of the suction table 9 to form a suction groove 14. Nip rollers 11 and 12 are disposed on front and rear sides of the suction table 9 to nip opposed ends of the polarizing film F. Further, the suction table 9 suction-holds the polarizing film F in a state that the polarizing film F is inclined with the suction groove 14 located below a portion to be cut. In this state, a laser device 10 scans the polarizing film F along the suction groove 14 to cut the polarizing film F in a width direction.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: September 4, 2012
    Assignees: Nitto Denko Corporation, Akebono Machine Industries Co., Ltd.
    Inventors: Kouta Nakai, Junpei Kozasa, Masahiro Hosoi
  • Publication number: 20110203430
    Abstract: Nip rollers 11 and 12 each including a pair of upper and lower rollers are disposed on an upstream side and a downstream side with a portion to be cut of an optical film F located therebetween. In the nip roller 12, a center axis C of the upper roller 12b is displaced relative to a center axis L of the drive roller 12a in a direction away from the portion to be cut. Upon cutting of the polarizing film F, the upper rollers 11b and 12b are simultaneously moved downward, so that a timing at which the downstream nip roller 12 nips the polarizing film F is delayed. Further, the nip roller 12 pulls the polarizing film F in the direction away from the portion to be cut, so that tension is applied to the polarizing film F. In this state, the polarizing film F is cut by a laser device 10.
    Type: Application
    Filed: August 19, 2008
    Publication date: August 25, 2011
    Inventors: Kouta Nakai, Junpei Kozasa, Yoshio Takahashi, Masahiro Hosoi
  • Publication number: 20100206859
    Abstract: A suction table 9 is disposed at a cutting action position for a polarizing film F, and holding blocks 9a and 9b, which are different in height from each other, are disposed in proximity to each other along a transport direction on a surface of the suction table 9 to form a suction groove 14. Nip rollers 11 and 12 are disposed on front and rear sides of the suction table 9 to nip opposed ends of the polarizing film F. Further, the suction table 9 suction-holds the polarizing film F in a state that the polarizing film F is inclined with the suction groove 14 located below a portion to be cut. In this state, a laser device 10 scans the polarizing film F along the suction groove 14 to cut the polarizing film F in a width direction.
    Type: Application
    Filed: August 19, 2008
    Publication date: August 19, 2010
    Inventors: Kouta Nakai, Junpei Kozasa, Masahiro Hosoi
  • Publication number: 20100162864
    Abstract: In a process of transporting a strip-shaped optical film F, the optical film F is cut to a predetermined length. Thereafter, the sheet-like optical films F divided by the cutting are intermittently transported while the strip-shaped optical film F is fed by the predetermined length such that a portion to be cut next reaches a cutting action position. Further, a leading one of the sheet-like optical films F in the intermittent transport process is transported to a continuous transport process such that a rear end thereof passes the intermittent transport process in a subsequent intermittent transport operation. Herein, the sheet-like optical film F is transported to the downstream-side continuous transport process following the intermittent transport process to continuously transport the optical film F.
    Type: Application
    Filed: August 19, 2008
    Publication date: July 1, 2010
    Inventors: Junpei Kozasa, Shoji Negishi