Patents by Inventor Naohiro IKAI

Naohiro IKAI 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: 10889519
    Abstract: Provided is method of producing a glass roll, the method including: a conveying step of conveying a glass film (G) along a longitudinal direction thereof; a cutting step of irradiating the glass film (G) with a laser beam (L) from a laser irradiation apparatus (19) while conveying the glass film (G) by the conveying step, to thereby separate the glass film (G) into a non-product portion (Gc) and a product portion (Gd); and a take-up step of taking up the product portion (Gd) into a roll shape, to thereby form a glass roll (R). The cutting step includes winding a thread-like peeled material (Ge) generated from an end portion of the product portion (Gd) in a width direction around a rod-shaped collecting member (20a), to thereby collect the thread-like peeled material (Ge).
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: January 12, 2021
    Assignee: NIPPON ELECTRIC GLASS CO., LTD.
    Inventors: Naohiro Ikai, Kaoru Mitsugi, Shuji Akiyama, Hiroki Mori, Koichi Mori, Yasuhiro Uemura
  • Publication number: 20200361807
    Abstract: Provided is a method of manufacturing a glass film, including a cleaving step (S5) of cleaving a band-like glass film (G1) conveyed in a predetermined conveying direction (X) through irradiation of the glass film (G1) with a laser beam (L). The cleaving step (S5) includes: a step of, while supporting a lower surface of the glass film (G1) by a surface plate (22) including an opening (25a), suctioning the glass film (G1) through the opening (25a); and a step of irradiating the glass film (G1) suctioned through the opening (25a) with the laser beam (L).
    Type: Application
    Filed: August 20, 2018
    Publication date: November 19, 2020
    Inventors: Naohiro IKAI, Kenichi MURATA
  • Patent number: 10766804
    Abstract: A conveying device (14) for a glass film (G) includes: a first support (21) configured to support a first portion (Gc) of the glass film (G) having been cut; a second support (22) configured to support a second portion (Gd) of the glass film (G) having been cut; and an opening (23) formed at a position between the first support (21) and the second support (22) and below a laser irradiation apparatus (19). A cutting step for the glass film (G) includes deforming the glass film (G) so as to be convex downward through the opening (23), and radiating a laser beam (LB) from the laser irradiation apparatus (19) to a position which is within a range of the opening (23), and which is prevented from coinciding with a top (GT) of the glass film (G).
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: September 8, 2020
    Assignee: NIPPON ELECTRIC GLASS CO., LTD.
    Inventors: Kaoru Mitsugi, Naohiro Ikai, Shuji Akiyama
  • Publication number: 20190292086
    Abstract: Provided is a method comprises: continuously forming an elongated, glass film having marginal portions from molten glass into a given shape having two marginal portions, in width-directional opposite edge regions thereof, wherein the glass film having marginal portions has the marginal portions, and an effective portion formed in a width-directional central region of the glass film having marginal portions; annealing the glass film having marginal portions; continuously forming resin tapes on the glass film having marginal portions at positions adjacent to and away by a given distance from the respective marginal portions, to extend in a length direction of the glass film having marginal portions; and continuously removing each of the marginal portions from the glass film having marginal portions, along a position between the marginal portion and a corresponding one of the resin tapes, or at a given width-directional position within the corresponding resin tape.
    Type: Application
    Filed: October 17, 2017
    Publication date: September 26, 2019
    Applicants: NITTO DENKO CORPORATION, NIPPON ELECTRIC GLASS CO., LTD.
    Inventors: Takeshi MURASHIGE, Junichi INAGAKI, Kazuhito HOSOKAWA, Kota NAKAI, Toshihiro KANNO, Yoshinori HASEGAWA, Kaoru MITSUGI, Naohiro IKAI, Hiroki MORI, Yohei KIRIHATA
  • Publication number: 20190161385
    Abstract: A conveying device (14) for a glass film (G) includes: a first support (21) configured to support a first portion (Gc) of the glass film (G) having been cut; a second support (22) configured to support a second portion (Gd) of the glass film (G) having been cut; and an opening (23) formed at a position between the first support (21) and the second support (22) and below a laser irradiation apparatus (19). A cutting step for the glass film (G) includes deforming the glass film (G) so as to be convex downward through the opening (23), and radiating a laser beam (LB) from the laser irradiation apparatus (19) to a position which is within a range of the opening (23), and which is prevented from coinciding with a top (GT) of the glass film (G).
    Type: Application
    Filed: April 21, 2017
    Publication date: May 30, 2019
    Applicant: Nippon Electric Glass Co., Ltd.
    Inventors: Kaoru MITSUGI, Naohiro IKAI, Shuji AKIYAMA
  • Publication number: 20190152826
    Abstract: Provided is method of producing a glass roll, the method including: a conveying step of conveying a glass film (G) along a longitudinal direction thereof; a cutting step of irradiating the glass film (G) with a laser beam (L) from a laser irradiation apparatus (19) while conveying the glass film (G) by the conveying step, to thereby separate the glass film (G) into a non-product portion (Gc) and a product portion (Gd); and a take-up step of taking up the product portion (Gd) into a roll shape, to thereby form a glass roll (R). The cutting step includes winding a thread-like peeled material (Ge) generated from an end portion of the product portion (Gd) in a width direction around a rod-shaped collecting member (20a), to thereby collect the thread-like peeled material (Ge).
    Type: Application
    Filed: April 21, 2017
    Publication date: May 23, 2019
    Inventors: Naohiro IKAI, Kaoru MITSUGI, Shuji AKIYAMA, Hiroki MORI, Koichi MORI, Yasuhiro UEMURA
  • Patent number: 9028940
    Abstract: A sheet roll comprises two glass films and a coupling portion, wherein end portions of the glass films are coupled together via the coupling portion and the coupled glass films are rolled into a roll shape. The coupling portion is a sheet-like coupling member formed of a resin film and placed on the end portions of the two glass films in a rolling direction so as to span therebetween. The sheet-like coupling member includes wide joint portions joined respectively to the end portions of the two glass films, and a necked portion which is narrower than the wide joint portions and is formed at a middle portion of the sheet-like coupling member in the rolling direction.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: May 12, 2015
    Assignee: Nippon Electric Glass Co., Ltd.
    Inventors: Yoshinori Hasegawa, Hiroshi Adachi, Hiroki Mori, Kaoru Mitsugi, Naohiro Ikai
  • Patent number: 8769989
    Abstract: A cleaving apparatus holds at least one surface (effective surface) of a band-like glass film in a non-contact state to suppress a situation that wavy portions reach a region in which the band-like glass film is to be cleaved. The cleaving apparatus cleaves the band-like glass film, which is being conveyed in a longitudinal direction thereof, along a conveyance direction thereof using a thermal stress generated through localized heating and cooling of a heated region. The localized heating and the cooling is performed on a preset cleaving line extending along the conveyance direction of the band-like glass film. The cleaving apparatus includes an air knife for supplying air to a front surface of the band-like glass film to retain the film on a conveyor at a position on an upstream side of a cleaving region in the conveyance direction.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: July 8, 2014
    Assignee: Nippon Electric Glass Co., Ltd.
    Inventors: Kaoru Mitsugi, Naohiro Ikai, Hiroshi Adachi, Hiroki Mori
  • Publication number: 20120131962
    Abstract: A cleaving apparatus holds at least one surface (effective surface) of a band-like glass film in a non-contact state to suppress a situation that wavy portions reach a region in which the band-like glass film is to be cleaved. The cleaving apparatus cleaves the band-like glass film, which is being conveyed in a longitudinal direction thereof, along a conveyance direction thereof using a thermal stress generated through localized heating and cooling of a heated region. The localized heating and the cooling is performed on a preset cleaving line extending along the conveyance direction of the band-like glass film. The cleaving apparatus includes an air knife for supplying air to a front surface of the band-like glass film to retain the film on a conveyor at a position on an upstream side of a cleaving region in the conveyance direction.
    Type: Application
    Filed: November 15, 2011
    Publication date: May 31, 2012
    Inventors: Kaoru Mitsugi, Naohiro Ikai, Hiroshi Adachi, Hiroki Mori
  • Publication number: 20120015132
    Abstract: A sheet roll (1) is manufactured by placing a sheet-like coupling member (3) on end portions of a plurality of glass films (g) so as to span therebetween, coupling the end portions of the glass films (g) together, and rolling the coupled plurality of glass films (g). The sheet-like coupling member (3) used in the sheet roll (1) includes wide width portions (4) for forming wide joint portions joined to the glass films (g) at each of both end portions thereof in a rolling direction, and a necked portion (5), which is narrower than the wide width portions (4) and is formed at a middle portion thereof in the rolling direction.
    Type: Application
    Filed: July 14, 2011
    Publication date: January 19, 2012
    Inventors: Yoshinori HASEGAWA, Hiroshi ADACHI, Hiroki MORI, Kaoru MITSUGI, Naohiro IKAI