Patents by Inventor Yoshiharu Ooi

Yoshiharu Ooi 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: 10746908
    Abstract: There is provide an optical filter suppressed in incidence angle dependence and having high visible light transmittance. The optical filter includes: an absorption layer containing a first near-infrared absorbent (DA) having a maximum absorption wavelength ?(DA_Tmin) in wavelengths of 685 to 715 nm and a second near-infrared absorbent (DB) having a maximum absorption wavelength ?(DB_Tmin) in wavelengths of 705 to 725 nm or wavelengths of more than 725 nm and 900 nm or less on a side of a wavelength longer than the maximum absorption wavelength ?(DA_Tmin), and satisfying specific light absorption characteristics; and a reflection layer including a dielectric multilayer film satisfying specific reflection characteristics in wavelengths of 700 to 1150 nm, wherein a transmittance of the reflection layer in a boundary region of visible light and near-infrared light and a transmittance of the absorption layer have a specific relation.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: August 18, 2020
    Assignee: AGC Inc.
    Inventors: Yoshiharu Ooi, Hiroshi Kumai, Kazuhiko Shiono, Hiroki Hotaka
  • Patent number: 10683233
    Abstract: A light selective transmission type glass 10 according to the present invention includes: a glass substrate 12; and a light selective transmission layer 11 provided on at least one main surface of the glass substrate 12. The glass substrate 12 has an average thermal expansion coefficient ?50/100 at 50° C. to 100° C. of 2.70 ppm/° C. to 3.20 ppm/° C., an average thermal expansion coefficient ?200/300 at 200° C. to 300° C. of 3.45 ppm/° C. to 3.95 ppm/° C., a value ?200/300/?50/100 obtained by dividing the average thermal expansion coefficient ?200/300 at 200° C. to 300° C. by the average thermal expansion coefficient ?50/100 at 50° C. to 100° C. of 1.20 to 1.30, and a content of an alkali metal oxide being 0% to 0.1%.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: June 16, 2020
    Assignee: AGC Inc.
    Inventors: Shuhei Nomura, Kazutaka Ono, Yoshiharu Ooi, Hiroki Hotaka
  • Publication number: 20190213251
    Abstract: An input method editor (IME) is associated with a local user. Memory stores local data and a processor, coupled to the memory, is configured to receive input from a local, first user, obtain shared data associated with at least a remote, second user from a remote server and generate prediction candidates and conversion candidates based on the input provided by the local, first user and correlation of the input and the obtained shared data.
    Type: Application
    Filed: March 18, 2019
    Publication date: July 11, 2019
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Dong Li, Xi Chen, Yoshiharu Sato, Keita Ooi
  • Patent number: 10310150
    Abstract: There are provided a near-infrared cut filter having a sufficient near-infrared blocking property and being capable of reducing or preventing, in a solid-state imaging device using the near-infrared cut filter, occurrence of a phenomenon that an object which did not exist on the original subject appears in a taken image, and also a highly sensitive solid-state imaging device having the near-infrared cut filter. A near-infrared cut filter includes a stack having a near-infrared absorbing glass substrate and a near-infrared absorbing layer containing a near-infrared absorbing dye and a transparent resin on at least one main surface of the near-infrared absorbing glass substrate, and a dielectric multilayer film formed on at least one main surface of the stack, wherein maximum transmittance at an incident angle of 31 to 60 degrees with respect to light with a wavelength of from 775 to 900 nm is 50% or less.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: June 4, 2019
    Assignee: AGC Inc.
    Inventors: Takashi Sugiyama, Katsumasa Hosoi, Atsushi Komori, Yoshiharu Ooi, Makoto Hasegawa
  • Patent number: 10228500
    Abstract: An optical filter includes: an absorption layer containing a first near-infrared absorbent having a maximum absorption in a wavelength of 660 to 785 nm, and satisfying (i-1) in 620 to 670 nm, on a shorter wavelength side of a wavelength ? (DA_Tmin) exhibiting the maximum absorption, there is a wavelength ?Sh (DA_T50%) at which a transmittance becomes 50%; and a reflection layer formed of a dielectric multilayered film satisfying (ii-1) in 670 to 1200 nm, there is a near-infrared reflection band in which a transmittance with respect to light at an incident angle of 0° becomes 50% or less, and a wavelength ?Sh (A2_Ts50%) at which a transmittance of light of an s polarization component out of light at an incident angle of 30° becomes 50%, on a shorter wavelength side of the near-infrared reflection band, is positioned on a longer wavelength side of the wavelength ?Sh (DA_T50%).
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: March 12, 2019
    Assignee: AGC Inc.
    Inventors: Yoshiharu Ooi, Kazuhiko Shiono, Asana Yoshioka, Shoko Suzuki, Hiroki Hotaka
  • Publication number: 20180095203
    Abstract: There is provide an optical filter suppressed in incidence angle dependence and having high visible light transmittance. The optical filter includes: an absorption layer containing a first near-infrared absorbent (DA) having a maximum absorption wavelength ?(DA_Tmin) in wavelengths of 685 to 715 nm and a second near-infrared absorbent (DB) having a maximum absorption wavelength ?(DB_Tmin) in wavelengths of 705 to 725 nm or wavelengths of more than 725 nm and 900 nm or less on a side of a wavelength longer than the maximum absorption wavelength ?(DA_Tmin), and satisfying specific light absorption characteristics; and a reflection layer including a dielectric multilayer film satisfying specific reflection characteristics in wavelengths of 700 to 1150 nm, wherein a transmittance of the reflection layer in a boundary region of visible light and near-infrared light and a transmittance of the absorption layer have a specific relation.
    Type: Application
    Filed: November 21, 2017
    Publication date: April 5, 2018
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Yoshiharu Ooi, Hiroshi Kumai, Kazuhiko Shiono, Hiroki Hotaka
  • Publication number: 20170355637
    Abstract: A light selective transmission type glass 10 according to the present invention includes: a glass substrate 12; and a light selective transmission layer 11 provided on at least one main surface of the glass substrate 12. The glass substrate 12 has an average thermal expansion coefficient ?50/100 at 50° C. to 100° C. of 2.70 ppm/° C. to 3.20 ppm/° C., an average thermal expansion coefficient ?200/300 at 200° C. to 300° C. of 3.45 ppm/° C. to 3.95 ppm/° C., a value ?200/300/?50/100 obtained by dividing the average thermal expansion coefficient ?200/300 at 200° C. to 300° C. by the average thermal expansion coefficient ?50/100 at 50° C. to 100° C. of 1.20 to 1.30, and a content of an alkali metal oxide being 0% to 0.1%.
    Type: Application
    Filed: August 2, 2017
    Publication date: December 14, 2017
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Shuhei NOMURA, Kazutaka ONO, Yoshiharu OOI, Hiroki HOTAKA
  • Publication number: 20170192144
    Abstract: An optical filter includes: an absorption layer containing a first near-infrared absorbent having a maximum absorption in a wavelength of 660 to 785 nm, and satisfying (i-1) in 620 to 670 nm, on a shorter wavelength side of a wavelength ? (DA_Tmin) exhibiting the maximum absorption, there is a wavelength ?Sh (DA_T50%) at which a transmittance becomes 50%; and a reflection layer formed of a dielectric multilayered film satisfying (ii-1) in 670 to 1200 nm, there is a near-infrared reflection band in which a transmittance with respect to light at an incident angle of 0° becomes 50% or less, and a wavelength ?Sh (A2_Ts50%) at which a transmittance of light of an s polarization component out of light at an incident angle of 30° becomes 50%, on a shorter wavelength side of the near-infrared reflection band, is positioned on a longer wavelength side of the wavelength ?Sh (DA_T50%).
    Type: Application
    Filed: March 22, 2017
    Publication date: July 6, 2017
    Applicant: Asahi Glass Company, Limited
    Inventors: Yoshiharu OOI, Kazuhiko SHIONO, Asana YOSHIOKA, Shoko SUZUKI, Hiroki HOTAKA
  • Publication number: 20170017023
    Abstract: There are provided a near-infrared cut filter having a sufficient near-infrared blocking property and being capable of reducing or preventing, in a solid-state imaging device using the near-infrared cut filter, occurrence of a phenomenon that an object which did not exist on the original subject appears in a taken image, and also a highly sensitive solid-state imaging device having the near-infrared cut filter. A near-infrared cut filter includes a stack having a near-infrared absorbing glass substrate and a near-infrared absorbing layer containing a near-infrared absorbing dye and a transparent resin on at least one main surface of the near-infrared absorbing glass substrate, and a dielectric multilayer film formed on at least one main surface of the stack, wherein maximum transmittance at an incident angle of 31 to 60 degrees with respect to light with a wavelength of from 775 to 900 nm is 50% or less.
    Type: Application
    Filed: September 29, 2016
    Publication date: January 19, 2017
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Takashi SUGIYAMA, Katsumasa HOSOI, Atsushi KOMORI, Yoshiharu OOI, Makoto HASEGAWA
  • Patent number: 8565058
    Abstract: To provide a liquid crystal alignment film having a sufficient alignment-regulating power and high resistance against blue laser beam and having, at the same time, excellent adhesion, and an optical element using it. A liquid crystal alignment film obtainable by bonding, by chemisorption to a substrate, an alignment-regulating precursor which undergoes anisotropic decomposition by irradiation with polarized ultraviolet light, and irradiating the alignment-regulating precursor bonded to the substrate, with polarized ultraviolet light, to let it undergo anisotropic decomposition and exhibit an alignment-regulating power.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: October 22, 2013
    Assignee: Asahi Glass Company, Limited
    Inventors: Kazuhiko Shiono, Hiroshi Kumai, Yoshiharu Ooi
  • Publication number: 20120075539
    Abstract: A projection display device is provided with: a light source portion including at least one light source that emits coherent light; an image light generation portion that generates image light by modulating the light emitted by the light source portion; a projection portion that projects the image light; a liquid crystal scattering element that is disposed on an optical path between the light source portion and the image light generation portion and temporally changes scattering state for passing light; a transparent electrode formed on each of opposing surfaces of a plurality of transparent substrates of the liquid crystal scattering element; and a liquid crystal layer that is sandwiched between the transparent electrodes and has liquid crystal of a smectic phase having spontaneous polarization in voltage applied state, and is characterized in that an AC voltage is applied to the liquid crystal layer through the transparent electrode.
    Type: Application
    Filed: December 5, 2011
    Publication date: March 29, 2012
    Applicant: Asahi Glass Company, Limited
    Inventors: Teppei KONISHI, Atsushi Koyanagi, Ayako Tanaka, Hiroshi Kumai, Yoshiharu Ooi
  • Patent number: 7835252
    Abstract: An optical head apparatus includes a light source and an objective lens focusing a light source light on an optical recording medium. Also included is a light detector receiving a return light, and a variable diffraction device including a first polarized light diffraction grating; and a second polarized light diffraction grating. Provided that a polarizing direction diffracted by the first polarized light diffraction grating is defined as a first polarizing direction and a polarizing direction that is orthogonal to the first polarizing direction and not diffracted by the first polarized light diffraction grating is defined as a second polarizing direction, a ratio obtained from dividing a diffraction efficiency in the second polarizing direction by a diffraction efficiency in the first polarizing direction, of the first polarized light diffraction grating, is 0 to 0.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: November 16, 2010
    Assignee: Asahi Glass Company, Limited
    Inventors: Koichi Murata, Yoshiharu Ooi
  • Patent number: 7773489
    Abstract: A liquid crystal lens element capable of finely adjusting focal length according to the magnitude of applied voltage, and an optical head device employing such a liquid crystal lens element, are provided. On one surface of a transparent substrate 511, a transparent electrode 513 and a concave-convex portion 517 made of a transparent material having a cross section shape approximated by a saw-tooth shape, are formed so as to constitute a plurality of annular portions, and on one surface of a transparent substrate 512, a transparent electrode 514 is formed. The transparent electrodes 513 and 514 constitute annular divided electrode segments, and division positions of the annular electrode segments are made to be agree with division positions of annular portions of the saw-tooth-shaped concave-convex portion 517 of the transparent substrate 511.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: August 10, 2010
    Assignee: Asahi Glass Company, Limited
    Inventors: Kouichi Murata, Takuji Nomura, Mitsuo Oosawa, Yoshiharu Ooi, Yuzuru Tanabe
  • Patent number: 7764354
    Abstract: A multi-layer diffraction type polarizer is formed by laminating at least two polarizing diffraction gratings each having a birefringent material which straightly transmits incident light having a first polarization direction without functioning as a diffraction grating, and diffracts incident light having a second polarization direction perpendicular to the first polarization direction by functioning as a diffraction grating. Further, in order to realize an optical attenuator having a high extinction ratio even at low voltage, a phase plate made of an organic thin film is provided to cancel the retardation of the liquid crystal cell remaining when the voltage is applied. Further, in order to rotate the polarization direction of a linearly polarized incident light, the liquid crystal cell is provided with a ?/4 phase plate comprising an organic thin film.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: July 27, 2010
    Assignee: Asahi Glass Company, Limited
    Inventors: Yoshiharu Ooi, Masahiro Murakawa
  • Patent number: 7738344
    Abstract: A liquid crystal lens element is provided, which does not produce change of transmission wavefront regardless of polarization state of incident light when it is off-state at a time of no voltage application, and which exhibits concave lens function for extraordinarily polarized incident light when it is on-state at a time of voltage application.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: June 15, 2010
    Assignee: Asahi Glass Company, Limited
    Inventors: Yoshiharu Ooi, Takuji Nomura, Toshimasa Kakiuchi, Mitsuo Oosawa, Yuzuru Tanabe
  • Patent number: 7738346
    Abstract: A polarizing diffraction element having a wavelength selectivity which functions as a polarizing diffraction element at a wavelength ?1, and which does not function as a diffraction grating not depending on incident polarization state and shows high transmittance at a wavelength ?2, and an optical head device employing the element, are provided. The polarizing diffraction element selectively diffracts or transmits incident light having two different wavelengths each containing a first circularly polarized light and a second circularly polarized light having a rotation opposite from the rotation of the first circularly polarized light, depending on wavelength and polarization state of the incident light. Then, a reflective wavelength region for at least the first circularly incident light, does not contain said two incident wavelengths.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: June 15, 2010
    Assignee: Asahi Glass Company, Limited
    Inventors: Yoshiharu Ooi, Hiromasa Sato, Tomoki Gunjima
  • Patent number: 7719657
    Abstract: The present application relates to a liquid crystal lens element and an optical head device, in particular order, to a liquid crystal lens capable of switching the focal length among a plurality of different focal lengths according to switching of applied voltage among a plurality of applied voltages, and an optical head device employing the liquid crystal lens, for writing and/or reading an information to/from an optical recording medium.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: May 18, 2010
    Assignee: Asahi Glass Company, Limited
    Inventors: Yoshiharu Ooi, Yuzuru Tanabe, Hiromasa Sato, Takuji Nomura, Ryuichiro Shimizu
  • Patent number: 7710536
    Abstract: A liquid crystal diffraction lens element and an optical head device, which can switch focal lengths of both of outgoing light and returning light by a single element, are provided. The liquid crystal lens element comprises transparent substrates 1a, 1b, a liquid crystal 4 sandwiched between the transparent substrates 1a, 1b, transparent electrodes 2a, 2b, birefringent Fresnel lens members 3a, 3b each having a Fresnel lens shape and made of a birefringent material, and a seal 5, wherein the extraordinary refractive index direction A of the birefringent Fresnel lens member 3a and the extraordinary refractive index direction B of the birefringent Fresnel lens member 3b are perpendicular to each other, and the alignment direction of the liquid crystal 4 at the interface between the liquid crystal 4 and the transparent substrate 1a is perpendicular to the alignment direction of the liquid crystal 4 at the interface between the liquid crystal 4 and the transparent substrate 1b.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: May 4, 2010
    Assignee: Asahi Glass Company, Limited
    Inventors: Mitsuo Osawa, Yoshiharu Ooi
  • Patent number: 7688700
    Abstract: A phase correction element comprising a first phase correction layer formed in a region of numerical aperture NA2, and a first phase plate; the first phase correction layer comprising a concavo-convex portion having a rotational symmetry with respect to the optical axis of incident light and having a cross-sectional shape of a saw-tooth-form or a saw-tooth-form whose convex portions are each approximated by a step form; the first phase plate generating a birefringent phase difference of about an odd number times of ?/2 for linearly polarized light of ?1; and the phase correction element that does change a transmitted wavefront of ?1 and changing a transmitted wavefront of the ?2 or transmitted wavefront of both wavelengths of ?2 and ?3 when three types of incident light at ?1=410 nm, ?2=650 nm and ?3=780 nm respectively, are incident.
    Type: Grant
    Filed: January 31, 2005
    Date of Patent: March 30, 2010
    Assignee: Asahi Glass Company, Limited
    Inventors: Yoshiharu Ooi, Masahiro Murakawa, Hiromasa Sato, Masao Miyamura
  • Publication number: 20100020671
    Abstract: The present invention provides a phase correction element which can be used for recording and/or reproducing an information of three types of optical disks for HD, DVD and CD by employing a single objective lens for HD, and an optical head device.
    Type: Application
    Filed: January 31, 2005
    Publication date: January 28, 2010
    Applicant: ASAHI GLASS COMPANY LIMITED
    Inventors: Yoshiharu Ooi, Masahiro Murakawa, Hiromasa Sato, Masao Miyamura