Patents by Inventor Keisuke HANASHIMA

Keisuke HANASHIMA 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: 11114356
    Abstract: The present invention provides a glass substrate in which in a step of sticking a glass substrate and a silicon-containing substrate to each other, bubbles hardly intrude therebetween. The present invention relates to a glass substrate for forming a laminated substrate by lamination with a silicon-containing substrate, having a warpage of 2 ?m to 300 ?m, and an inclination angle due to the warpage of 0.0004° to 0.12°.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: September 7, 2021
    Assignee: AGC Inc.
    Inventors: Yu Hanawa, Shigeki Sawamura, Shuhei Nomura, Kazutaka Ono, Nobuhiko Takeshita, Keisuke Hanashima
  • Patent number: 11099325
    Abstract: The present invention provides a polymer optical waveguide containing: a core; and a cladding having a refractive index lower than that of the core, provided around the core, in which the polymer optical waveguide has a core-coupling section where at least a part of the cladding is not present along a light propagation direction of the polymer optical waveguide and an application type removal film A provided so as to come into contact with the core of the core-coupling section.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: August 24, 2021
    Assignee: AGC Inc.
    Inventors: Shotaro Takenobu, Toshihisa Okada, Satoko Noma, Kenta Kobayashi, Keisuke Hanashima, Seiki Ohara
  • Patent number: 10731233
    Abstract: A composition for bonding includes tin, germanium, and nickel. A contained amount of germanium is less than or equal to 10 mass %. A contained amount of nickel in mass % is less than or equal to a product of 2.8 multiplied by a term that is the contained amount of germanium in mass % to the power of 0.3.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: August 4, 2020
    Assignee: AGC Inc.
    Inventors: Minoru Yamada, Atsushi Yamada, Koichi Shibuya, Shinya Kikugawa, Keisuke Hanashima
  • Publication number: 20200183081
    Abstract: The present invention provides a polymer optical waveguide containing: a core; and a cladding having a refractive index lower than that of the core, provided around the core, in which the polymer optical waveguide has a core-coupling section where at least a part of the cladding is not present along a light propagation direction of the polymer optical waveguide and an application type removal film A provided so as to come into contact with the core of the core-coupling section.
    Type: Application
    Filed: February 11, 2020
    Publication date: June 11, 2020
    Applicant: AGC Inc.
    Inventors: Shotaro TAKENOBU, Toshihisa OKADA, Satoko NOMA, Kenta KOBAYASHI, Keisuke HANASHIMA, Seiki OHARA
  • Patent number: 10515864
    Abstract: The present invention provides a glass substrate in which in a step of sticking a glass substrate and a silicon-containing substrate to each other, bubbles hardly intrude therebetween. The present invention relates to a glass substrate for forming a laminated substrate by lamination with a silicon-containing substrate, having a warpage of 2 ?m to 300 ?m, and an inclination angle due to the warpage of 0.0004° to 0.12°.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: December 24, 2019
    Assignee: AGC Inc.
    Inventors: Yu Hanawa, Shigeki Sawamura, Shuhei Nomura, Kazutaka Ono, Nobuhiko Takeshita, Keisuke Hanashima
  • Publication number: 20190385920
    Abstract: The present invention provides a glass substrate in which in a step of sticking a glass substrate and a silicon-containing substrate to each other, bubbles hardly intrude therebetween. The present invention relates to a glass substrate for forming a laminated substrate by lamination with a silicon-containing substrate, having a warpage of 2 ?m to 300 ?m, and an inclination angle due to the warpage of 0.0004° to 0.12°.
    Type: Application
    Filed: August 29, 2019
    Publication date: December 19, 2019
    Applicant: AGC Inc.
    Inventors: Yu Hanawa, Shigeki Sawamura, Shuhei Nomura, Kazutaka Ono, Nobuhiko Takeshita, Keisuke Hanashima
  • Publication number: 20180230575
    Abstract: A composition for bonding incudes tin, germanium, and nickel. A contained amount of germanium is less than or equal to 10 mass %. A contained amount of nickel in mass % is less than or equal to a product of 2.8 multiplied by a term that is the contained amount of germanium in mass % to the power of 0.3.
    Type: Application
    Filed: April 12, 2018
    Publication date: August 16, 2018
    Applicant: Asahi Glass Company, Limited
    Inventors: Minoru YAMADA, Atsushi YAMADA, Koichi SHIBUYA, Shinya KIKUGAWA, Keisuke HANASHIMA
  • Publication number: 20180151408
    Abstract: A glass substrate is laminated with a substrate containing silicon to thereby form a laminated substrate. The glass substrate has a concave surface and a convex surface and has one or more marks that distinguish between the concave surface and the convex surface.
    Type: Application
    Filed: January 23, 2018
    Publication date: May 31, 2018
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Yu Hanawa, Shuhei Nomura, Kazutaka Ono, Nobuhiko Takeshita, Keisuke Hanashima
  • Publication number: 20180082914
    Abstract: The present invention provides a glass substrate in which in a step of sticking a glass substrate and a silicon-containing substrate to each other, bubbles hardly intrude therebetween. The present invention relates to a glass substrate for forming a laminated substrate by lamination with a silicon-containing substrate, having a warpage of 2 ?m to 300 ?m, and an inclination angle due to the warpage of 0.0004° to 0.12°.
    Type: Application
    Filed: November 27, 2017
    Publication date: March 22, 2018
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Yu HANAWA, Shigeki SAWAMURA, Shuhei NOMURA, Kazutaka ONO, Nobuhiko TAKESHITA, Keisuke HANASHIMA
  • Publication number: 20160236975
    Abstract: A cover glass for a pen input device has a haze value of less than 1%, and a Martens hardness within a range from 2000 N/mm2 to 4000 N/mm2. When a moving member receiving a load of 150 gf (1.47 N) is moved in one direction, at 10 mm/sec, at room temperature, on the surface of the cover glass, a coefficient of kinetic friction ?k of a kinetic frictional force Fk (N) exerted by the cover glass surface within a region where an approximately linear relationship is established between the kinetic frictional force Fk (N) and the time is 0.14˜0.50, and a standard deviation ? (N) of the kinetic frictional force Fk (N) is no more than 0.03. The moving member is a pen that includes a pen tip made of polyacetal resin with a Rockwell hardness of M90 and having a radius of curvature of 700 ?m.
    Type: Application
    Filed: April 25, 2016
    Publication date: August 18, 2016
    Applicant: Asahi Glass Company, Limited
    Inventors: Naoki SUGIMOTO, Takashi SHIBUYA, Keisuke HANASHIMA, Osamu HOMMA, Katsumi SUZUKI, Kiyohisa NAKAMURA, Nobuhiko TAKESHITA