Patents by Inventor Masaki OKITA

Masaki OKITA 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: 10397449
    Abstract: In an image capturing apparatus, an image sensing device includes a plurality of groups of pixels each including a plurality of photoelectric conversion elements, signals from the plurality of photoelectric conversion elements being readable separately for each photoelectric conversion element via a signal line used in common by each group of pixels. A reading unit performs, on a plurality of groups of pixels, a reading-out operation to reading out a signal as a first signal from part of the plurality of photoelectric conversion elements and a second reading-out operation to mix signals from the plurality of photoelectric conversion elements and read out a resultant mixed signal as an image signal. A generation unit generates one image file including the first signal, the image signal, and defect data indicating a group of pixels for which the first signal is defective while the image signal is not defective.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: August 27, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Masaki Okita
  • Patent number: 10306192
    Abstract: First image data and second image data are image data in which each pixel value corresponds to one of a plurality of color components that constitute a color filter of an image sensor. Also, the second image data is image data whose field of view overlaps the field of view of the first image data, and whose resolution is higher than that of the first image data. An image processing apparatus performs color interpolation processing on the first image data by referring to, out of the values of the pixels that constitute the second image data, the value of a pixel at a first position corresponding to the position of a pixel to be interpolated in the first image data or a position closest to the first position.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: May 28, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Masaki Okita
  • Publication number: 20190146365
    Abstract: A positively chargeable toner includes a plurality of toner particles. The toner particles each contain a crystalline polyester resin, a non-crystalline polyester resin, a carnauba wax, and a quaternary ammonium salt. The crystalline polyester resin has an SP value of at least 10.0 (cal/cm3)1/2 and no greater than 10.1 (cal/cm3)1/2. An amount of the crystalline polyester resin is at least 5 parts by mass and no greater than 19 parts by mass relative to 100 parts by mass of the toner particles. An amount of the carnauba wax is at least 21.0% by mass and no greater than 42.0% by mass relative to a total mass of the crystalline polyester resin, the quaternary ammonium salt, and the carnauba wax.
    Type: Application
    Filed: October 17, 2018
    Publication date: May 16, 2019
    Applicant: KYOCERA Document Solutions Inc.
    Inventor: Masaki OKITA
  • Patent number: 10209640
    Abstract: Cores of toner particles contain a non-crystalline polyester resin, a carnauba wax, and a crystalline polyester resin (polymer of monomers including alcohol, carboxylic acid, styrene-based monomer, and acrylic acid-based monomer) having an SP value ((cal/cm3)1/2) of at least 10 and no greater than 11. Shell layers each include a resin film mainly constituted by a complex of resin particles having a glass transition point of at least 50° C. and no greater than 100° C. A Ru-dyed ratio of the toner particles in a state in which no external additive is present is at least 50% and no greater than 80%. An intensity of an absorbency peak around a wavenumber of 701 cm?1 is at least 0.0100 and no greater than 0.0250. Surface adsorption forces (FA: coated regions, FB: exposed regions) satisfy “0 nN<FA”, “50 nN?FB?70 nN”, and “35 nN?FB?FA?65 nN”.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: February 19, 2019
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Masaki Okita, Hiroki Uemura
  • Patent number: 10203622
    Abstract: Toner particles contain a non-crystalline polyester resin, a crystalline polyester resin, a styrene-acrylic acid-based resin, and a releasing agent. An amount of the releasing agent contained in the toner is at least 7.5% by mass and no greater than 12.5% by mass. An amount of the styrene-acrylic acid-based resin contained in the toner is at least 50 parts by mass and no greater than 100 parts by mass relative to 100 parts by mass of the releasing agent. The crystalline polyester resin includes an acrylic acid-based unit and a styrene-based unit. The styrene-acrylic acid-based resin includes an acrylic acid-based unit that has an epoxy group and a styrene-based unit. A peak top molecular weight of the toner in a differential molecular weight distribution curve is at least 8,000 and no greater than 12,000. A mass average molecular weight of the toner is at least 40,000 and no greater than 65,000.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: February 12, 2019
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Masaki Okita
  • Publication number: 20190028615
    Abstract: In an image capturing apparatus, an image sensing device includes a plurality of groups of pixels each including a plurality of photoelectric conversion elements, signals from the plurality of photoelectric conversion elements being readable separately for each photoelectric conversion element via a signal line used in common by each group of pixels. A reading unit performs, on a plurality of groups of pixels, a reading-out operation to reading out a signal as a first signal from part of the plurality of photoelectric conversion elements and a second reading-out operation to mix signals from the plurality of photoelectric conversion elements and read out a resultant mixed signal as an image signal. A generation unit generates one image file including the first signal, the image signal, and defect data indicating a group of pixels for which the first signal is defective while the image signal is not defective.
    Type: Application
    Filed: September 1, 2016
    Publication date: January 24, 2019
    Inventor: Masaki Okita
  • Publication number: 20180335712
    Abstract: Cores of toner particles contain a non-crystalline polyester resin, a carnauba wax, and a crystalline polyester resin (polymer of monomers including alcohol, carboxylic acid, styrene-based monomer, and acrylic acid-based monomer) having an SP value ((cal/cm3)1/2) of at least 10 and no greater than 11. Shell layers each include a resin film mainly constituted by a complex of resin particles having a glass transition point of at least 50° C. and no greater than 100° C. A Ru-dyed ratio of the toner particles in a state in which no external additive is present is at least 50% and no greater than 80%. An intensity of an absorbency peak around a wavenumber of 701 cm?1 is at least 0.0100 and no greater than 0.0250. Surface adsorption forces (FA: coated regions, FB: exposed regions) satisfy “0 nN<FA”, “50 nN?FB?70 nN”, and “35 nN?FB?FA?65 nN”.
    Type: Application
    Filed: September 15, 2017
    Publication date: November 22, 2018
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Masaki OKITA, Hiroki UEMURA
  • Publication number: 20180203371
    Abstract: Toner particles contain a non-crystalline polyester resin, a crystalline polyester resin, a styrene-acrylic acid-based resin, and a releasing agent. An amount of the releasing agent contained in the toner is at least 7.5% by mass and no greater than 12.5% by mass. An amount of the styrene-acrylic acid-based resin contained in the toner is at least 50 parts by mass and no greater than 100 parts by mass relative to 100 parts by mass of the releasing agent. The crystalline polyester resin includes an acrylic acid-based unit and a styrene-based unit. The styrene-acrylic acid-based resin includes an acrylic acid-based unit that has an epoxy group and a styrene-based unit. A peak top molecular weight of the toner in a differential molecular weight distribution curve is at least 8,000 and no greater than 12,000. A mass average molecular weight of the toner is at least 40,000 and no greater than 65,000.
    Type: Application
    Filed: January 17, 2018
    Publication date: July 19, 2018
    Applicant: KYOCERA Document Solutions Inc.
    Inventor: Masaki OKITA
  • Patent number: 9740128
    Abstract: A positively chargeable toner for electrostatic latent image development includes toner particles. The toner particles each include a toner core containing boron nitride and a shell layer disposed over a surface of the toner core. The boron nitride is contained in an amount of no less than 0.05% by mass and no greater than 35% by mass relative to total mass of the toner core. The boron nitride has a thermal conductivity of no less than 40 W/m·K and no greater than 220 W/m·K.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: August 22, 2017
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Toshiki Takemori, Yukinori Nakayama, Masaki Okita, Hiroki Uemura, Takamichi Mori
  • Patent number: 9690221
    Abstract: An electrostatic latent image developing toner includes a plurality of toner particles each containing a binder resin. The toner particles each contain as the binder resin, a crystalline polyester resin and a non-crystalline polyester resin. An FT-IR spectrum of the electrostatic latent image developing toner obtained through FT-IR analysis based on an ATR method has an absorbency peak of at least 0.0100 and no greater than 0.0250 in a wave number range of 701 cm?1±1 cm?1.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: June 27, 2017
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Masaki Okita, Hiroki Uemura
  • Publication number: 20170180681
    Abstract: First image data and second image data are image data in which each pixel value corresponds to one of a plurality of color components that constitute a color filter of an image sensor. Also, the second image data is image data whose field of view overlaps the field of view of the first image data, and whose resolution is higher than that of the first image data. An image processing apparatus performs color interpolation processing on the first image data by referring to, out of the values of the pixels that constitute the second image data, the value of a pixel at a first position corresponding to the position of a pixel to be interpolated in the first image data or a position closest to the first position.
    Type: Application
    Filed: December 20, 2016
    Publication date: June 22, 2017
    Inventor: Masaki OKITA
  • Patent number: 9648213
    Abstract: An image sensor comprises: a pixel array having image forming pixels and phase-difference detecting pixels; and an outputting unit configured to add correction processing information, and position information of the phase-difference detecting pixels to image data obtained from the pixel array and to output the image data.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: May 9, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masaki Okita
  • Patent number: 9632442
    Abstract: An electrostatic latent image developing toner includes toner particles that each include a toner core containing a binder resin and a shell layer disposed over a surface of the toner core. The binder resin includes a crystalline polyester resin and an amorphous polyester resin. The crystalline polyester resin has a melting point of at least 80° C. and no greater than 120° C. When the electrostatic latent image developing toner is measured using a differential scanning calorimeter, a glass transition point is observed in a first run but is not observed in a second run. The shell layer contains a resin including a thermosetting component and a thermoplastic component.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: April 25, 2017
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Masaki Okita, Yukinori Nakayama, Toshiki Takemori, Takamichi Mori, Hiroki Uemura
  • Publication number: 20160291493
    Abstract: An electrostatic latent image developing toner includes a plurality of toner particles each containing a binder resin. The toner particles each contain as the binder resin, a crystalline polyester resin and a non-crystalline polyester resin. An FT-IR spectrum of the electrostatic latent image developing toner obtained through FT-IR analysis based on an ATR method has an absorbency peak of at least 0.0100 and no greater than 0.0250 in a wave number range of 701 cm?1±1 cm?1.
    Type: Application
    Filed: March 29, 2016
    Publication date: October 6, 2016
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Masaki OKITA, Hiroki UEMURA
  • Patent number: 9383667
    Abstract: An electrostatic latent image developing toner includes toner particles. Each of the toner particles includes a toner core containing a binder resin and a releasing agent, and a shell layer coating the toner core. The releasing agent has a melting point Mpr of no less than 50° C. and no greater than 100° C. The releasing agent has a number average dispersion diameter of no less than 30 nm and no greater than 500 nm. The shell layer is made from a resin including a unit derived from a monomer of a thermosetting resin. The thermosetting resin is one or more amino resins from among a melamine resin, a urea resin, and a glyoxal resin.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: July 5, 2016
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Toshiki Takemori, Masashi Yamashita, Hiroki Uemura, Yukinori Nakayama, Masaki Okita
  • Publication number: 20160139524
    Abstract: An electrostatic latent image developing toner includes toner particles that each include a toner core containing a binder resin and a shell layer disposed over a surface of the toner core. The binder resin includes a crystalline polyester resin and an amorphous polyester resin. The crystalline polyester resin has a melting point of at least 80° C. and no greater than 120° C. When the electrostatic latent image developing toner is measured using a differential scanning calorimeter, a glass transition point is observed in a first run but is not observed in a second run. The shell layer contains a resin including a thermosetting component and a thermoplastic component.
    Type: Application
    Filed: November 16, 2015
    Publication date: May 19, 2016
    Applicant: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventors: Masaki OKITA, Yukinori NAKAYAMA, Toshiki TAKEMORI, Takamichi MORI, Hiroki UEMURA
  • Publication number: 20160124335
    Abstract: A positively chargeable toner for electrostatic latent image development includes toner particles. The toner particles each include a toner core containing boron nitride and a shell layer disposed over a surface of the toner core. The boron nitride is contained in an amount of no less than 0.05% by mass and no greater than 35% by mass relative to total mass of the toner core. The boron nitride has a thermal conductivity of no less than 40 W/m·K and no greater than 220 W/m·K.
    Type: Application
    Filed: November 3, 2015
    Publication date: May 5, 2016
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Toshiki TAKEMORI, Yukinori NAKAYAMA, Masaki OKITA, Hiroki UEMURA, Takamichi MORI
  • Publication number: 20160006905
    Abstract: An image sensor comprises: a pixel array having image forming pixels and phase-difference detecting pixels; and an outputting unit configured to add correction processing information, and position information of the phase-difference detecting pixels to image data obtained from the pixel array and to output the image data.
    Type: Application
    Filed: June 30, 2015
    Publication date: January 7, 2016
    Inventor: Masaki Okita
  • Patent number: 9204030
    Abstract: The image pickup apparatus includes an image sensor having plural pixels each being constituted by a microlens causing light fluxes from mutually different areas in an exit pupil of an image capturing optical system to form two object images and two photoelectric conversion portions photoelectrically converting the two object images, a signal reader performing a first reading operation that adds signals from the two photoelectric conversion portions to read the added signal as a pixel signal and a second reading operation that independently reads the signal from each of the two photoelectric conversion portions as the pixel signal, and a phase difference detector detecting a phase difference between the two object images by using the pixel signal read by the second reading operation. The signal reader performs, when the phase difference is detected, the second reading operation on pixel lines located discretely among plural pixel lines in the image sensor.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: December 1, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Masaki Okita
  • Publication number: 20150086918
    Abstract: An electrostatic latent image developing toner includes toner particles. Each of the toner particles includes a toner core containing a binder resin and a releasing agent, and a shell layer coating the toner core. The releasing agent has a melting point Mpr of no less than 50° C. and no greater than 100° C. The releasing agent has a number average dispersion diameter of no less than 30 nm and no greater than 500 nm. The shell layer is made from a resin including a unit derived from a monomer of a thermosetting resin. The thermosetting resin is one or more amino resins from among a melamine resin, a urea resin, and a glyoxal resin.
    Type: Application
    Filed: September 25, 2014
    Publication date: March 26, 2015
    Applicant: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventors: Toshiki TAKEMORI, Masashi YAMASHITA, Hiroki UEMURA, Yukinori NAKAYAMA, Masaki OKITA