Patents by Inventor Koji Kashu

Koji Kashu 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: 10263233
    Abstract: A method of film production includes the steps of obtaining defect information including information on the position of a defect (D) in a separator original sheet (12b), slitting the separator original sheet (12b) to produce a plurality of separators (12a), and determining, on the basis of the defect information on a single defect (D), that a separator (12a) actually having the defect (D) and another separator (12a) adjacent to the above separator (12a) are defective.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: April 16, 2019
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Koji Kashu, Yusuke Kon, Tatsuya Sakamoto, Jian Wang
  • Publication number: 20190079029
    Abstract: The present invention makes it possible to check a target object highly accurately and quickly. Each of the electromagnetic wave reception regions includes m pieces of smaller regions which are arranged along a diameter of a circle in a plan view of a circular profile surface.
    Type: Application
    Filed: September 4, 2018
    Publication date: March 14, 2019
    Inventors: Koji Kashu, Daizaburo Yashiki
  • Publication number: 20190079030
    Abstract: The present invention makes it possible to check a target object highly accurately and quickly. In a sensor having an electromagnetic wave reception region, suitability of portions for capturing an image of a subject which moves fast is heightened as a distance from a center increases in a plan view of a circular profile surface.
    Type: Application
    Filed: September 5, 2018
    Publication date: March 14, 2019
    Inventors: Koji KASHU, Yoshitaka SHINOMIYA, Daizaburo YASHIKI
  • Patent number: 10177358
    Abstract: A method for film production includes the steps of obtaining information on the position of a defect (D) in a separator (12a) and providing marks (LA, LB) at the respective positions in the vicinity of the defect (D), the marks indicating the position of the defect.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: January 8, 2019
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Koji Kashu, Yusuke Kon, Tatsuya Sakamoto, Jian Wang
  • Patent number: 10168285
    Abstract: A separator producing method includes the steps of: winding up, around a core (81, 53), a separator (12a, 12b) having a defect (D) detected; and providing a defect code (DC2) including information on a position of the defect (D) in the longitudinal direction of the separator (12a, 12b) on (i) the outermost portion (86, 86b) of the separator (12a, 12b), wound around the core (81, 53), or (ii) the core (81, 53), around which the separator (12a, 12b) is wound.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: January 1, 2019
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Koji Kashu, Yusuke Kon, Tatsuya Sakamoto, Jian Wang
  • Publication number: 20180284038
    Abstract: A transfer system in accordance with an aspect of the present invention includes: a robot arm configured to hold a core, which is tubular, of at least one separator roll from a side of a first side surface of the at least one separator roll, the at least one separator roll including the core and a separator, wound around an outer circumferential surface of the core, and take out the at least one separator roll from a rack; and a defect inspection device (4) configured to hold the core from a side of a second side surface of the at least one separator roll, receive the at least one separator roll from the robot arm, and inspect, for a defect, the at least one separator roll thus received.
    Type: Application
    Filed: March 28, 2018
    Publication date: October 4, 2018
    Inventors: Yoshitaka SHINOMIYA, Yasuyuki KONDO, Koji KASHU
  • Publication number: 20180284037
    Abstract: A defect inspection device includes: a radiation source configured to emit an electromagnetic wave radially to a separator roll; a TDI sensor configured to detect the electromagnetic wave which has passed through the separator roll; and a moving mechanism configured to move an inspection region of the separator roll with a distance kept substantially constant between the radiation source and the separator roll and with a distance kept substantially constant between the radiation source and the TDI sensor.
    Type: Application
    Filed: March 27, 2018
    Publication date: October 4, 2018
    Inventors: Koji KASHU, Yoshitaka SHINOMIYA
  • Publication number: 20180281203
    Abstract: A robot arm in accordance with an aspect of the present invention includes: a first gripping part and a second gripping part each configured to hold a separator roll including (i) a core being tubular and (ii) a separator, wound around an outer circumferential surface of the core, for use in a lithium-ion secondary battery.
    Type: Application
    Filed: March 27, 2018
    Publication date: October 4, 2018
    Inventors: Yoshitaka SHINOMIYA, Yasuyuki KONDO, Koji KASHU
  • Patent number: 10090499
    Abstract: A method for film production includes the steps of obtaining information on the position of a defect (D) in a separator (12a) and providing marks (LA, LB) at the respective positions in the vicinity of the defect (D), the marks indicating the position of the defect.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: October 2, 2018
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Koji Kashu, Yusuke Kon, Tatsuya Sakamoto, Jian Wang
  • Publication number: 20180159102
    Abstract: To carry out accurate defect inspection over a wide area, a defect inspection device (1) includes: a radiation source section (2) configured to emit an electromagnetic wave (4) to a separator roll (10); and a sensor section (3) configured to detect the electromagnetic wave (4) that the radiation source section (2) has emitted to the separator roll (10), the sensor section (3) being configured to detect the electromagnetic wave (4) before and after the separator roll is moved relative to the radiation source section (2).
    Type: Application
    Filed: November 29, 2017
    Publication date: June 7, 2018
    Inventors: Yoshitaka SHINOMIYA, Koji KASHU, Yasuyuki KONDO
  • Publication number: 20180149602
    Abstract: To inspect a separator roll for a defect inside the separator roll with use of only a small number of defect inspection devices, a defect inspection device (1) includes: a radiation source section (2) configured to emit an electromagnetic wave (4) to a separator roll (10); and a sensor section (3) configured to detect the electromagnetic wave (4) having passed through the separator roll (10).
    Type: Application
    Filed: November 28, 2017
    Publication date: May 31, 2018
    Inventors: Yoshitaka SHINOMIYA, Koji KASHU
  • Publication number: 20170317327
    Abstract: A method of film production includes the steps of obtaining defect information including information on the position of a defect (D) in a separator original sheet (12b), slitting the separator original sheet (12b) to produce a plurality of separators (12a), and determining, on the basis of the defect information on a single defect (D), that a separator (12a) actually having the defect (D) and another separator (12a) adjacent to the above separator (12a) are defective.
    Type: Application
    Filed: September 18, 2015
    Publication date: November 2, 2017
    Inventors: Koji KASHU, Yusuke KON, Tatsuya SAKAMOTO, Jian WANG
  • Publication number: 20170307542
    Abstract: To easily specify the position of a defect in a separator, a method for producing a separator original sheet (12b) includes the steps of: forming a separator original sheet (12b) including a separator original sheet (12c) and a heat-resistant layer coated on the separator original sheet (12c); detecting a defect (D) in the separator original sheet (12b); and recording information including information on a position of the defect (D) which position is a position in the width direction of the separator original sheet (12b).
    Type: Application
    Filed: January 30, 2015
    Publication date: October 26, 2017
    Applicant: Sumitomo Chemical Company, Limited
    Inventors: Koichiro WATANABE, Tatsuya KATAOKA, Koji KASHU
  • Publication number: 20170307971
    Abstract: A method for film production includes the steps of obtaining information on the position of a defect (D) in a separator (12a) and providing marks (LA, LB) at the respective positions in the vicinity of the defect (D), the marks indicating the position of the defect.
    Type: Application
    Filed: September 18, 2015
    Publication date: October 26, 2017
    Inventors: Koji KASHU, Yusuke KON, Tatsuya SAKAMOTO, Jian WANG
  • Publication number: 20170307543
    Abstract: A separator producing method includes the steps of: winding up, around a core (81, 53), a separator (12a, 12b) having a defect (D) detected; and providing a defect code (DC2) including information on a position of the defect (D) in the longitudinal direction of the separator (12a, 12b) on (i) the outermost portion (86, 86b) of the separator (12a, 12b), wound around the core (81, 53), or (ii) the core (81, 53), around which the separator (12a, 12b) is wound.
    Type: Application
    Filed: September 18, 2015
    Publication date: October 26, 2017
    Inventors: Koji KASHU, Yusuke KON, Tatsuya SAKAMOTO, Jian WANG
  • Patent number: 7506426
    Abstract: A machine tool includes a table, a main spindle unit, a cross rail, a plurality of columns and a plurality of supportive transfer mechanisms. The plurality of columns vertically guide the cross rail, the columns being erected at positions on opposite sides of the table and on front and rear sides of the center of gravity of the main spindle unit on each side of the table. The supportive transfer mechanisms vertically move the cross rail while supporting the cross rail. The cross rail has a pair of supporting portions for supporting front and rear portions of the main spindle unit located frontward and rearward with respect to the center of gravity of the main spindle unit, respectively, and a plurality of through holes through which the columns are passed vertically.
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: March 24, 2009
    Assignee: Shin Nippon Koki Co., Ltd.
    Inventors: Miki Ryuhan, Koji Kashu, Akira Inoue
  • Publication number: 20080096746
    Abstract: A machine tool includes a table, a main spindle unit, a cross rail, a plurality of columns and a plurality of supportive transfer mechanisms. The plurality of columns vertically guide the cross rail, the columns being erected at positions on opposite sides of the table and on front and rear sides of the center of gravity of the main spindle unit on each side of the table. The supportive transfer mechanisms vertically move the cross rail while supporting the cross rail. The cross rail has a pair of supporting portions for supporting front and rear portions of the main spindle unit located frontward and rearward with respect to the center of gravity of the main spindle unit, respectively, and a plurality of through holes through which the columns are passed vertically.
    Type: Application
    Filed: August 30, 2007
    Publication date: April 24, 2008
    Applicant: SHIN NIPPON KOKI CO., LTD.
    Inventors: Miki Ryuhan, Koji Kashu, Akira Inoue