Patents by Inventor Yoji Teramoto

Yoji Teramoto 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: 11034854
    Abstract: A light-shielding paint includes an epoxy group-containing compound, an inorganic fine particle, a coloring agent, and an amine curing agent. The ratio (A?/A) of the mass (A?) of the amine curing agent to the active hydrogen equivalent (A) of the amine curing agent and the ratio (E?/E) of the mass (E?) of the epoxy group-containing compound to the epoxy equivalent (E) of the epoxy group-containing compound satisfy 0.1?[(A?/A)/(E?/E)]?0.45.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: June 15, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Reiko Kubota, Yoji Teramoto, Shuhei Yamamoto
  • Patent number: 10947397
    Abstract: There is provided an optical apparatus which comprises a lens, and a lens barrel holding the lens, wherein a film is formed on a surface of the lens barrel, the film contains a resin, titanium oxide coated with silica, and an inorganic particle, an average particle size of the inorganic particle is 10 nm or more and 110 nm or less, and an average particle size of the titanium oxide coated with the silica is 0.2 ?m or more. Thus, it is possible to achieve the optical apparatus which, in an anoxic atmosphere, has less discoloration due to sunlight and less reflectance deterioration even when color is thin, and has the high solar reflectance.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: March 16, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Reiko Kubota, Yoji Teramoto
  • Publication number: 20200102470
    Abstract: An optical element has a lanthanum-containing glass substrate and a light-shielding film on part of the surface of the glass substrate. The light-shielding film is made from a light-shielding paint that contains at least an epoxy resin, fine particles of titania, a dye, an organic solvent, and an amine-based curing agent. The organic solvent in the light-shielding paint has a vapor pressure of 160 Pa or more and 960 Pa or less at a temperature of 20° C. The viscosity of the light-shielding paint is 10.0 mPa·s or more and 100 mPa·s or less.
    Type: Application
    Filed: December 4, 2019
    Publication date: April 2, 2020
    Inventors: Shuhei Yamamoto, Yoji Teramoto, Reiko Kubota
  • Publication number: 20190353827
    Abstract: An article includes a film on a surface thereof, the film containing a resin, an organic azo-based particle, and a Ti- and O-containing particle so that the film is not separated or cracked and has a good design and good heat-shielding properties.
    Type: Application
    Filed: May 15, 2019
    Publication date: November 21, 2019
    Inventors: Reiko Kubota, Yoji Teramoto, Shuhei Yamamoto
  • Publication number: 20190169462
    Abstract: A light-shielding paint includes an epoxy group-containing compound, an inorganic fine particle, a coloring agent, and an amine curing agent. The ratio (A?/A) of the mass (A?) of the amine curing agent to the active hydrogen equivalent (A) of the amine curing agent and the ratio (E?/E) of the mass (E?) of the epoxy group-containing compound to the epoxy equivalent (E) of the epoxy group-containing compound satisfy 0.1?[(A?/A)/(E?/E)]?0.45.
    Type: Application
    Filed: February 1, 2019
    Publication date: June 6, 2019
    Inventors: Reiko Kubota, Yoji Teramoto, Shuhei Yamamoto
  • Patent number: 10288772
    Abstract: An optical member includes a light-transmitting substrate having a surface including an optically effective area and an optically non-effective area, the optically effective area and the optically non-effective area being located adjacent relative to each other, the optically effective area and the optically non-effective area forming an angle of not less than 45 degrees and not more than 90 degrees on the border thereof. The optical member has a textured structure having an in-plane dimension of not greater than the use wavelength, the structure being formed continuously in a boundary area extending along the border of the optically effective area and the optically non-effective area, and a light-shielding film formed in a region including at least the boundary area of the optically non-effective area on the surface of the substrate.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: May 14, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yoji Teramoto
  • Patent number: 10240063
    Abstract: A light-shielding paint includes an epoxy group-containing compound, an inorganic fine particle, a coloring agent, and an amine curing agent. The ratio (A?/A) of the mass (A?) of the amine curing agent to the active hydrogen equivalent (A) of the amine curing agent and the ratio (E?/E) of the mass (E?) of the epoxy group-containing compound to the epoxy equivalent (E) of the epoxy group-containing compound satisfy 0.1?[(A?/A)/(E?/E)]?0.45.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: March 26, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Reiko Kubota, Yoji Teramoto, Shuhei Yamamoto
  • Patent number: 10126550
    Abstract: An optical element includes a substrate and a light-shielding film on a part of the periphery of the substrate. The light-shielding film contains a compound having an epoxy group, a coloring agent, inorganic particles having a refractive index of 2.2 or more, and silica particles. The average concentration of the inorganic particles in an interface region having a thickness of 15 nm from the interface between the substrate and the light-shielding film is 1.1 to 1.5 times as high as the average concentration of the inorganic particles in the light-shielding film.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: November 13, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoji Teramoto, Shuhei Yamamoto, Reiko Kubota
  • Publication number: 20180298210
    Abstract: There is provided an optical apparatus which comprises a lens, and a lens barrel holding the lens, wherein a film is formed on a surface of the lens barrel, the film contains a resin, titanium oxide coated with silica, and an inorganic particle, an average particle size of the inorganic particle is 10 nm or more and 110 nm or less, and an average particle size of the titanium oxide coated with the silica is 0.2 ?m or more. Thus, it is possible to achieve the optical apparatus which, in an anoxic atmosphere, has less discoloration due to sunlight and less reflectance deterioration even when color is thin, and has the high solar reflectance.
    Type: Application
    Filed: April 2, 2018
    Publication date: October 18, 2018
    Inventors: Reiko Kubota, Yoji Teramoto
  • Publication number: 20170276839
    Abstract: An optical member includes a light-transmitting substrate having a surface including an optically effective area and an optically non-effective area, the optically effective area and the optically non-effective area being located adjacent relative to each other, the optically effective area and the optically non-effective area forming an angle of not less than 45 degrees and not more than 90 degrees on the border thereof. The optical member has a textured structure having an in-plane dimension of not greater than the use wavelength, the structure being formed continuously in a boundary area extending along the border of the optically effective area and the optically non-effective area, and a light-shielding film formed in a region including at least the boundary area of the optically non-effective area on the surface of the substrate.
    Type: Application
    Filed: March 10, 2017
    Publication date: September 28, 2017
    Inventor: Yoji Teramoto
  • Publication number: 20160231563
    Abstract: An optical element includes a substrate and a light-shielding film on a part of the periphery of the substrate. The light-shielding film contains a compound having an epoxy group, a coloring agent, inorganic particles having a refractive index of 2.2 or more, and silica particles. The average concentration of the inorganic particles in an interface region having a thickness of 15 nm from the interface between the substrate and the light-shielding film is 1.1 to 1.5 times as high as the average concentration of the inorganic particles in the light-shielding film.
    Type: Application
    Filed: February 4, 2016
    Publication date: August 11, 2016
    Inventors: Yoji Teramoto, Shuhei Yamamoto, Reiko Kubota
  • Publication number: 20160040031
    Abstract: A light-shielding paint includes an epoxy group-containing compound, an inorganic fine particle, a coloring agent, and an amine curing agent. The ratio (A?/A) of the mass (A?) of the amine curing agent to the active hydrogen equivalent (A) of the amine curing agent and the ratio (E?/E) of the mass (E?) of the epoxy group-containing compound to the epoxy equivalent (E) of the epoxy group-containing compound satisfy 0.1?[(A?/A)/(E?/E)]?0.45.
    Type: Application
    Filed: August 4, 2015
    Publication date: February 11, 2016
    Inventors: Reiko Kubota, Yoji Teramoto, Shuhei Yamamoto
  • Publication number: 20160024335
    Abstract: An optical element has a lanthanum-containing glass substrate and a light-shielding film on part of the surface of the glass substrate. The light-shielding film is made from a light-shielding paint that contains at least an epoxy resin, fine particles of titania, a dye, an organic solvent, and an amine-based curing agent. The organic solvent in the light-shielding paint has a vapor pressure of 160 Pa or more and 960 Pa or less at a temperature of 20° C. The viscosity of the light-shielding paint is 10.0 mPa·s or more and 100 mPa·s or less.
    Type: Application
    Filed: July 24, 2015
    Publication date: January 28, 2016
    Inventors: Shuhei Yamamoto, Yoji Teramoto, Reiko Kubota
  • Publication number: 20130188255
    Abstract: The present invention provides a method of producing hollow magnesium fluoride particles by performing polymerization at the interface of micelle constituted of a hydrophobic solvent, a hydrophilic solvent, and a surfactant. The invention further provides an antireflection coating having a low refractive index due to the coating by the hollow magnesium fluoride particles and also provides an optical device coated with the antireflection coating and an imaging optical system having the optical device. In the method, micelle is formed from a hydrophobic solvent, a hydrophilic solvent, and a surfactant, and then a fluorine compound and a magnesium compound are dissolved in the micelle solution to polymerize magnesium fluoride at the interface of the micelle.
    Type: Application
    Filed: September 15, 2011
    Publication date: July 25, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yu Kameno, Masanobu Ogane, Yoji Teramoto
  • Patent number: 8125470
    Abstract: There is provided an electron source including: an insulating substrate; a first wiring that is arranged on the insulating substrate; a second wiring that is arranged on the insulating substrate and intersects with the first wiring; and an electron-emitting device having a cathode electrode provided with an electron-emitting member and a gate electrode arranged above the cathode electrode, which is arranged on the insulating substrate and is separated from an intersecting portion of the first wiring with the second wiring; wherein the first wiring is arranged on the second wiring via an insulating layer; the gate electrode is provided with a plurality of slit-like openings that is arranged in substantially parallel at intervals; and the opening is arranged so that an extended line in a longitudinal direction thereof intersects with the first wiring.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: February 28, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazushi Nomura, Ryoji Fujiwara, Michiyo Nishimura, Yoji Teramoto, Shunsuke Murakami
  • Patent number: 8075360
    Abstract: A manufacturing method of an electron-emitting device including the steps of: preparing a base substrate provided with an insulating or semi-conducting layer in advance and exposing the layer to an atmosphere which contains neutral radical containing hydrogen. It is preferable that the insulating or semi-conducting layer contains metal particles; the insulating or semi-conducting layer is a film containing carbon as a main component; the neutral radical containing hydrogen contains any of H., CH3., C2H5., and C2H. or mixture gas thereof; compared with a density of a charged particle in the atmosphere, a density of the neutral radical containing hydrogen in the atmosphere is more than 1,000 times; and a step of exposing the insulating or semi-conducting layer to the atmosphere is a step of making a hydrogen termination by using a plasma apparatus provided with a bias grid.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: December 13, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoji Teramoto, Ryoji Fujiwara, Michiyo Nishimura, Kazushi Nomura, Shunsuke Murakami
  • Patent number: 7994701
    Abstract: An electron-emitting device according to this invention has a cathode electrode, a first electrode, a second electrode, an insulating layer, a gate electrode, and an electron-emitting member. The gate electrode, the insulating layer, and the first electrode respectively have an opening communicating with each other. The electron-emitting member is provided on the cathode electrode, and at least a portion of the electron-emitting member is exposed in the opening. The second electrode is provided in the opening of the first electrode and electrically connected to the cathode electrode.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: August 9, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoji Teramoto, Ryoji Fujiwara, Michiyo Nishimura, Kazushi Nomura, Shunsuke Murakami
  • Publication number: 20110081819
    Abstract: As many protrusions as possible that contribute to electron emission are formed in a controlled manner and the protrusions are easily formed over a large area in a controlled manner. A conductive film composed of a conductive material constituting a cathode is formed by sputtering at a total pressure of 1.0 Pa or more and 2.8 Pa or less, and etching treatment is performed on the conductive film to form the cathode having a plurality of protrusions on the surface thereof.
    Type: Application
    Filed: October 1, 2010
    Publication date: April 7, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Akiko Kitao, Yoji Teramoto
  • Patent number: 7682213
    Abstract: An electron emission device is provided which has sufficient on/off characteristics and is capable of efficiently emitting electrons with a low voltage. An electron emission device includes a substrate, a cathode electrode, a gate electrode, which are arranged on the substrate, an insulation layer covering the surface of the cathode electrode, and a dipole layer formed by terminating the surface of the insulation layer with hydrogen.
    Type: Grant
    Filed: July 18, 2007
    Date of Patent: March 23, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryoji Fujiwara, Yoji Teramoto
  • Publication number: 20090322712
    Abstract: There is provided an electron source including: an insulating substrate; a first wiring that is arranged on the insulating substrate; a second wiring that is arranged on the insulating substrate and intersects with the first wiring; and an electron-emitting device having a cathode electrode provided with an electron-emitting member and a gate electrode arranged above the cathode electrode, which is arranged on the insulating substrate and is separated from an intersecting portion of the first wiring with the second wiring; wherein the first wiring is arranged on the second wiring via an insulating layer; the gate electrode is provided with a plurality of slit-like openings that is arranged in substantially parallel at intervals; and the opening is arranged so that an extended line in a longitudinal direction thereof intersects with the first wiring.
    Type: Application
    Filed: February 29, 2008
    Publication date: December 31, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kazushi Nomura, Ryoji Fujiwara, Michiyo Nishimura, Yoji Teramoto, Shunsuke Murakami