Patents by Inventor Sho Itoh

Sho Itoh 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: 9764979
    Abstract: Provided is a cutting method for a glass sheet, comprising radiating a laser beam to a cutting portion (C) of a glass sheet (G) having a thickness of 500 ?m or less to fuse the glass sheet (G), wherein a narrowest gap between fused end surfaces (Ga1 and Gb1) of the glass sheet (G), which face each other in the cutting portion (C), is managed to satisfy a relationship of 0.1?b/a?2, where “a” is a thickness of the glass sheet (G) and “b” is the narrowest gap.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: September 19, 2017
    Assignee: NIPPON ELECTRIC GLASS CO., LTD.
    Inventors: Takahide Fujii, Setsuo Uchida, Naotoshi Inayama, Takayuki Noda, Sho Itoh, Michiharu Eta
  • Publication number: 20160280581
    Abstract: Provided is a cutting method for a glass sheet, comprising radiating a laser beam to a cutting portion (C) of a glass sheet (G) having a thickness of 500 ?m or less to fuse the glass sheet (G), wherein a narrowest gap between fused end surfaces (Ga1 and Gb1) of the glass sheet (G), which face each other in the cutting portion (C), is managed to satisfy a relationship of 0.1?b/a?2, where “a” is a thickness of the glass sheet (G) and “b” is the narrowest gap.
    Type: Application
    Filed: June 8, 2016
    Publication date: September 29, 2016
    Applicant: Nippon Electric Glass Co., Ltd.
    Inventors: Takahide FUJII, Setsuo UCHIDA, Naotoshi INAYAMA, Takayuki NODA, Sho ITOH, Michiharu ETA
  • Patent number: 9422184
    Abstract: Provided is a cutting method for a glass sheet, comprising radiating a laser beam to a cutting portion (C) of a glass sheet (G) having a thickness of 500 ?m or less to fuse the glass sheet (G), wherein a narrowest gap between fused end surfaces (Ga1 and Gb1) of the glass sheet (G), which face each other in the cutting portion (C), is managed to satisfy a relationship of 0.1?b/a?2, where “a” is a thickness of the glass sheet (G) and “b” is the narrowest gap.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: August 23, 2016
    Assignee: NIPPON ELECTRIC GLASS CO., LTD.
    Inventors: Takahide Fujii, Setsuo Uchida, Naotoshi Inayama, Takayuki Noda, Sho Itoh, Michiharu Eta
  • Publication number: 20150299021
    Abstract: Provided is an initial crack formation device (1) for scoring a front-side end (Ga) in a conveyance direction (B) of a glass ribbon (G) conveyed by a belt conveyer (3) so as to form an initial crack group (CG) including a plurality of aggregated initial cracks (C) in a width direction of the front-side end (Ga) orthogonal to the conveyance direction (B). The initial crack formation device (1) includes a flap wheel (4) for scoring the front-side end (Ga) while rotating in a direction of drawing the glass ribbon (G) into the conveyance direction (B). The flap wheel (4) is configured to rotate at a rotational peripheral speed higher than a conveyance speed of the glass ribbon (G).
    Type: Application
    Filed: November 1, 2013
    Publication date: October 22, 2015
    Inventors: Sho ITOH, Hiroki MORI, Koichi MORI
  • Patent number: 9010151
    Abstract: A glass sheet cutting device fuses and divides a glass substrate using a preset cutting line as a boundary while supplying an assist gas and a laser beam from above the glass substrate along the preset cutting line of the glass substrate. The glass sheet cutting device includes a first laser irradiator for radiating a fusing laser beam and a second laser irradiator for radiating an annealing laser beam. Through a fusing gap formed between fused end surfaces by fusing, the second laser irradiator radiates the annealing laser beam obliquely from above onto the fused end surface to be annealed.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: April 21, 2015
    Assignee: Nippon Electric Glass Co., Ltd.
    Inventors: Takahide Fujii, Setsuo Uchida, Naotoshi Inayama, Takayuki Noda, Sho Itoh, Michiharu Eta
  • Publication number: 20130122264
    Abstract: Provided is a cutting method for a glass sheet, comprising radiating a laser beam to a cutting portion (C) of a glass sheet (G) having a thickness of 500 ?m or less to fuse the glass sheet (G), wherein a narrowest gap between fused end surfaces (Ga1 and Gb1) of the glass sheet (G), which face each other in the cutting portion (C), is managed to satisfy a relationship of 0.1?b/a?2, where “a” is a thickness of the glass sheet (G) and “b” is the narrowest gap.
    Type: Application
    Filed: September 14, 2012
    Publication date: May 16, 2013
    Inventors: Takahide Fujii, Setsuo Uchida, Naotoshi Inayama, Takayuki Noda, Sho Itoh, Michiharu Eta
  • Publication number: 20130091897
    Abstract: A glass sheet cutting device (1) fuses and divides a glass substrate (G) using a preset cutting line (CL) as a boundary while supplying an assist gas (AG) and a laser beam from above the glass substrate (G) along the preset cutting line (CL) of the glass substrate (G). The glass sheet cutting device (1) includes a first laser irradiator (2) for radiating a fusing laser beam (LB1) and a second laser irradiator (3) for radiating an annealing laser beam (LB2). Through a fusing gap (S) formed between fused end surfaces (Ga1, Gb1) by fusing, the second laser irradiator (3) radiates the annealing laser beam (LB2) obliquely from above onto the fused end surface (Ga1) to be annealed.
    Type: Application
    Filed: September 14, 2012
    Publication date: April 18, 2013
    Inventors: Takahide FUJII, Setsuo Uchida, Naotoshi Inayama, Takayuki Noda, Sho Itoh, Michiharu Eta