Patents by Inventor Kiyomu NOMURA
Kiyomu NOMURA 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).
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Patent number: 10800060Abstract: A wrinkle caused in a separator roll is inhibited. A slitting apparatus (6) changes a conveying direction of a first separator (12a) by a direction changing roller (68) toward a first take-up roller (70U), and conveys the first separator via an assisting roller (69) which is provided between a take-up position of the first separator to be wound and the direction changing roller so as to shorten a conveying distance between the take-up position and a roller immediately before the take-up position.Type: GrantFiled: September 5, 2018Date of Patent: October 13, 2020Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Kiyomu Nomura, Tatsuya Kataoka
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Patent number: 10661462Abstract: A wrinkle or misaligned winding caused in a separator roll is inhibited. In a slitting apparatus (6), a conveying direction of a first separator (12a) is changed to a first take-up roller (70U) side by a direction changing roller (68), the first separator is conveyed via a take-up assisting roller (69) which is provided between the direction changing roller and a first touch roller (81U) so as to shorten a roller-to-roller distance to the first touch roller, and the first separator which is being wound is pressed onto a take-up surface by the first touch roller.Type: GrantFiled: June 27, 2018Date of Patent: May 26, 2020Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Kiyomu Nomura, Tatsuya Kataoka
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Publication number: 20190389121Abstract: A method for producing a film and a film winding device are provided. When transferring of the film is slowed for winding of the film to be suspended and after winding of the film is suspended, transferring of the film is accelerated for winding of the film to be resumed. The film has a tension at a first level during a period extending from slowing of transferring of the film to suspending of winding of the film. Alternatively, the film has a tension at a first level during a period extending from a predetermined time point during a period during which winding of the film is suspended to a time point at which the accelerating starts. The first level of the tension is higher than a second level that the tension has immediately before slowing of the transferring of the film starts.Type: ApplicationFiled: June 24, 2019Publication date: December 26, 2019Inventors: Tatsuya KATAOKA, Kiyomu NOMURA, Fumiya KOMI, Manabu OKAZAKI
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Patent number: 10513045Abstract: A good-quality slit separator having a small amount of fuzziness at a slit part thereof is to be obtained. The present invention includes: a step (S101) of conveying an original sheet (S); and a step (S102) of slitting the original sheet (S) by causing a plurality of slitting blades (72) to cut into the original sheet (S) such that tangent plane angles (?3) in a tangent plane, on which a slitting position is in contact with the original sheet (S), are substantially identical with each other.Type: GrantFiled: December 22, 2015Date of Patent: December 24, 2019Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Satoshi Oohira, Tatsuya Kataoka, Kiyomu Nomura, Masaya Kondo
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Patent number: 10307925Abstract: Provided is a method for producing a separator which method less causes a tear in the separator. The method is a method for producing a separator by slitting, in a direction in which a separator original sheet (12b) being porous is conveyed, the separator original sheet (12b) into a plurality of separators (12a), including the steps of: (a) conveying the separator original sheet (12b) in a state where the separator original sheet (12b) is in contact with a roller (77); and (b) slitting the separator original sheet (12b) at a portion where the separator original sheet (12b) is in contact with the roller (77).Type: GrantFiled: February 15, 2018Date of Patent: June 4, 2019Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Koichiro Watanabe, Tatsuya Kataoka, Kiyomu Nomura
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Publication number: 20190016002Abstract: A wrinkle caused in a separator roll is inhibited. A slitting apparatus (6) changes a conveying direction of a first separator (12a) by a direction changing roller (68) toward a first take-up roller (70U), and conveys the first separator via an assisting roller (69) which is provided between a take-up position of the first separator to be wound and the direction changing roller so as to shorten a conveying distance between the take-up position and a roller immediately before the take-up position.Type: ApplicationFiled: September 5, 2018Publication date: January 17, 2019Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Kiyomu NOMURA, Tatsuya KATAOKA
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Publication number: 20180311849Abstract: A wrinkle or misaligned winding caused in a separator roll is inhibited. In a slitting apparatus (6), a conveying direction of a first separator (12a) is changed to a first take-up roller (70U) side by a direction changing roller (68), the first separator is conveyed via a take-up assisting roller (69) which is provided between the direction changing roller and a first touch roller (81U) so as to shorten a roller-to-roller distance to the first touch roller, and the first separator which is being wound is pressed onto a take-up surface by the first touch roller.Type: ApplicationFiled: June 27, 2018Publication date: November 1, 2018Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Kiyomu NOMURA, Tatsuya KATAOKA
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Patent number: 10105861Abstract: A wrinkle caused in a separator roll is inhibited. A slitting apparatus (6) changes a conveying direction of a first separator (12a) by a direction changing roller (68) toward a first take-up roller (70U), and conveys the first separator via an assisting roller (69) which is provided between a take-up position of the first separator to be wound and the direction changing roller so as to shorten a conveying distance between the take-up position and a roller immediately before the take-up position.Type: GrantFiled: May 26, 2015Date of Patent: October 23, 2018Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Kiyomu Nomura, Tatsuya Kataoka
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Patent number: 10035278Abstract: A wrinkle or misaligned winding caused in a separator roll is inhibited. In a slitting apparatus (6), a conveying direction of a first separator (12a) is changed to a first take-up roller (70U) side by a direction changing roller (68), the first separator is conveyed via a take-up assisting roller (69) which is provided between the direction changing roller and a first touch roller (81U) so as to shorten a roller-to-roller distance to the first touch roller, and the first separator which is being wound is pressed onto a take-up surface by the first touch roller.Type: GrantFiled: May 26, 2015Date of Patent: July 31, 2018Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Kiyomu Nomura, Tatsuya Kataoka
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Publication number: 20180169881Abstract: Provided is a method for producing a separator which method less causes a tear in the separator. The method is a method for producing a separator by slitting, in a direction in which a separator original sheet (12b) being porous is conveyed, the separator original sheet (12b) into a plurality of separators (12a), including the steps of: (a) conveying the separator original sheet (12b) in a state where the separator original sheet (12b) is in contact with a roller (77); and (b) slitting the separator original sheet (12b) at a portion where the separator original sheet (12b) is in contact with the roller (77).Type: ApplicationFiled: February 15, 2018Publication date: June 21, 2018Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Koichiro WATANABE, Tatsuya KATAOKA, Kiyomu NOMURA
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Patent number: 9931756Abstract: Provided is a method for producing a separator which method less causes a tear in the separator. The method is a method for producing a separator by slitting, in a direction in which a separator original sheet (12b) being porous is conveyed, the separator original sheet (12b) into a plurality of separators (12a), including the steps of: (a) conveying the separator original sheet (12b) in a state where the separator original sheet (12b) is in contact with a roller (77); and (b) slitting the separator original sheet (12b) at a portion where the separator original sheet (12b) is in contact with the roller (77).Type: GrantFiled: May 26, 2015Date of Patent: April 3, 2018Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Koichiro Watanabe, Tatsuya Kataoka, Kiyomu Nomura
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Publication number: 20170305025Abstract: A good-quality slit separator having a small amount of fuzziness at a slit part thereof is to be obtained. The present invention includes: a step (S101) of conveying an original sheet (S); and a step (S102) of slitting the original sheet (S) by causing a plurality of slitting blades (72) to cut into the original sheet (S) such that tangent plane angles (63) in a tangent plane, on which a slitting position is in contact with the original sheet (S), are substantially identical with each other.Type: ApplicationFiled: December 22, 2015Publication date: October 26, 2017Applicants: Sumitomo Chemical Company, Limited, Sumitomo Chemical Company, LimitedInventors: Satoshi OOHIRA, Tatsuya KATAOKA, Kiyomu NOMURA, Masaya KONDO
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Patent number: 9687990Abstract: A good-quality slit separator having a small amount of fuzziness at a slit part thereof is to be obtained. The present invention includes: a step (S101) of conveying an original sheet (S); and a step (S102) of slitting the original sheet (S) by causing a slitting blade (72) to cut into the original sheet (S) such that a d tangent plane angle (?3) in a tangent plane, on which a slitting position is in contact with the original sheet (S), is in a range of not less than 3° to not more than 35°.Type: GrantFiled: May 26, 2015Date of Patent: June 27, 2017Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Satoshi Oohira, Tatsuya Kataoka, Kiyomu Nomura, Masaya Kondo
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Publication number: 20160325446Abstract: Provided is a method for producing a separator which method less causes a tear in the separator. The method is a method for producing a separator by slitting, in a direction in which a separator original sheet (12b) being porous is conveyed, the separator original sheet (12b) into a plurality of separators (12a), including the steps of: (a) conveying the separator original sheet (12b) in a state where the separator original sheet (12b) is in contact with a roller (77); and (b) slitting the separator original sheet (12b) at a portion where the separator original sheet (12b) is in contact with the roller (77).Type: ApplicationFiled: May 26, 2015Publication date: November 10, 2016Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Koichiro WATANABE, Tatsuya KATAOKA, Kiyomu NOMURA
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Publication number: 20160325449Abstract: A wrinkle or misaligned winding caused in a separator roll is inhibited. A slitting apparatus (6) includes (i) a first touch roller (81U) whose position is changed in accordance with a change in outer diameter of a first separator roll (12U), which is formed on a core (u), so as to press the first separator (12a) onto a take-up surface of the first separator roll and (ii) a first take-up assisting roller (83U) which conveys the first separator immediately before the first touch roller and whose position is changed in accordance with positional change of the first touch roller.Type: ApplicationFiled: May 26, 2015Publication date: November 10, 2016Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Kiyomu NOMURA, Tatsuya KATAOKA
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Publication number: 20160325447Abstract: A wrinkle or misaligned winding caused in a separator roll is inhibited. In a slitting apparatus (6), a conveying direction of a first separator (12a) is changed to a first take-up roller (70U) side by a direction changing roller (68), the first separator is conveyed via a take-up assisting roller (69) which is provided between the direction changing roller and a first touch roller (81U) so as to shorten a roller-to-roller distance to the first touch roller, and the first separator which is being wound is pressed onto a take-up surface by the first touch roller.Type: ApplicationFiled: May 26, 2015Publication date: November 10, 2016Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Kiyomu NOMURA, Tatsuya KATAOKA
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Publication number: 20160325450Abstract: A wrinkle caused in a separator roll is inhibited. A slitting apparatus (6) changes a conveying direction of a first separator (12a) by a direction changing roller (68) toward a first take-up roller (70U), and conveys the first separator via an assisting roller (69) which is provided between a take-up position of the first separator to be wound and the direction changing roller so as to shorten a conveying distance between the take-up position and a roller immediately before the take-up position.Type: ApplicationFiled: May 26, 2015Publication date: November 10, 2016Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Kiyomu NOMURA, Tatsuya KATAOKA
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Publication number: 20160325448Abstract: A good-quality slit separator having a small amount of fuzziness at a slit part thereof is to be obtained. The present invention includes: a step (S101) of conveying an original sheet (S); and a step (S102) of slitting the original sheet (S) by causing a slitting blade (72) to cut into the original sheet (S) such that a d tangent plane angle (?3) in a tangent plane, on which a slitting position is in contact with the original sheet (S), is in a range of not less than 3° to not more than 35°.Type: ApplicationFiled: May 26, 2015Publication date: November 10, 2016Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Satoshi OOHIRA, Tatsuya KATAOKA, Kiyomu NOMURA, Masaya KONDO
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Publication number: 20160322619Abstract: The present invention prevents any one of a plurality of separators obtained through slitting from being conveyed while skewing and overlapping adjacent one of the plurality of separators. A separator original sheet (12b) is slit, in a direction in which the separator original sheet (12b) is conveyed, into a plurality of separators (12a), and one or more of the plurality of separators (12a) and another one or more of the plurality of separators (12a) are detached, from a roller (77) which the plurality of separators (12a) obtained through slitting first contact, at different positions provided on the roller (77) in a circumferential direction of the roller (77).Type: ApplicationFiled: May 26, 2015Publication date: November 3, 2016Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Koichiro WATANABE, Tatsuya KATAOKA, Kiyomu NOMURA