Patents by Inventor Hiroki Uemura

Hiroki Uemura 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).

  • Publication number: 20190204761
    Abstract: To provide a magnetic core material for electrophotographic developer and carrier for electrophotographic developer which are excellent in a rising-up of charge amount, can suppress a carrier scattering, and can stably provide good images; a developer containing the carrier; a method for producing the magnetic core material for electrophotographic developer; a method for producing the carrier for electrophotographic developer; and a method for producing the developer. The magnetic core material for electrophotographic developer, containing a sulfur component in a content of from 1 to 45 ppm in terms of a sulfate ion.
    Type: Application
    Filed: March 6, 2018
    Publication date: July 4, 2019
    Inventors: Hiroki SAWAMOTO, Tetsuya UEMURA
  • Publication number: 20190196440
    Abstract: A numerical control device that controls a servomotor on the basis of a machining program. The machining program determines whether or not to perform correction on reversal of a moving direction of a mechanical system driven in a movement axis direction by the servomotor. This is done on the basis of the machining program including an instruction that causes the reversal of the moving direction of the mechanical system and another instruction to be executed later than the instruction.
    Type: Application
    Filed: October 4, 2016
    Publication date: June 27, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kotaro NAGAOKA, Hiroki UEMURA
  • Publication number: 20190187579
    Abstract: A toner includes toner particles. The toner particles each include a composite core and a shell layer covering a surface of the composite core. The composite core is a composite of a toner core and organic particles located on a surface of the toner core. The toner core contains a releasing agent having a carboxyl group. The organic particles contain a resin having a carboxyl group and a mass average molecular weight of from 30,000 to 50,500. The shell layer includes a unit having a non-ring-opened oxazoline group. An amount of the non-ring-opened oxazoline group contained in 1 g of the toner as measured by gas chromatography-mass spectrometry is from 500 ?mol to 1,400 ?mol. An endothermic quantity due to melting of the releasing agent contained in 1 mg of the toner as measured by differential scanning calorimetry is from 80 mJ to 160 mJ.
    Type: Application
    Filed: December 17, 2018
    Publication date: June 20, 2019
    Applicant: KYOCERA Document Solutions Inc.
    Inventor: Hiroki UEMURA
  • Patent number: 10324392
    Abstract: An electrostatic latent image developing toner includes toner particles each including a toner mother particle and an external additive. The toner mother particle includes a composite core and a shell layer. The composite core is a composite of a toner core, organic particles, and polyhedral magnetic particles. The organic particles each contain a releasing agent and adhere to a surface of the toner core. The magnetic particles include magnetic particles adhering to the surface of the toner core and magnetic particles adhering to surfaces of the organic particles. An amount of the magnetic particles is 0.5 parts by mass to 2.0 parts by mass relative to 100 parts by mass of the toner cores. In a cross-sectional image of each toner particle, an area of protruding portions of the magnetic particles, which protrude from the shell layer, accounts for 10% to 75% of an overall area of the magnetic particles.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: June 18, 2019
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Hiroki Uemura
  • Publication number: 20190162339
    Abstract: A metal seal can be crushed evenly without forming wrinkles and scratches due to sliding against first and second flat surfaces. The seal comprises a first/second end surface arranged to face the first/second flat surface, respectively. The first end surface comprises a first convex part having a curved or flat surface that contacts the first flat surface, and a first projection that is formed shifted in a radial direction from the first convex part and has a ridge line that contacts the first flat surface. Prior to deformation, when the second end surface contacts the second flat surface and the first flat surface is separated from the first end surface, a point where a vertical distance between the first convex part and the second flat surface is the greatest and the ridge line are located on the same surface that is parallel to the first flat surface.
    Type: Application
    Filed: November 27, 2018
    Publication date: May 30, 2019
    Inventors: Makoto Uemura, Hiroki Miyaji, Keiichi Murakami
  • Publication number: 20190162305
    Abstract: A metal seal is annular, provided sandwiched between first and second flat surfaces. The seal includes a first/second end surface opposite to the first/second flat surface, respectively. The first end surface includes paired first protrusions formed displaced in a radial direction of the metal seal and have dihedral angles contacting the first flat surface, and the second end surface includes a second protrusion formed inward of one first protrusion and outward of the other first protrusion in the radial direction, and has a dihedral angle contacting the second flat surface, and paired third protrusions that are respectively formed inward and outward of the second protrusion and whose highest points to which perpendicular distances from a reference plane including the dihedral angles of the paired first protrusions are shorter than a perpendicular distance from the reference plane to the dihedral angle of the second protrusion.
    Type: Application
    Filed: November 27, 2018
    Publication date: May 30, 2019
    Inventors: Makoto Uemura, Hiroki Miyaji
  • Publication number: 20190152826
    Abstract: Provided is method of producing a glass roll, the method including: a conveying step of conveying a glass film (G) along a longitudinal direction thereof; a cutting step of irradiating the glass film (G) with a laser beam (L) from a laser irradiation apparatus (19) while conveying the glass film (G) by the conveying step, to thereby separate the glass film (G) into a non-product portion (Gc) and a product portion (Gd); and a take-up step of taking up the product portion (Gd) into a roll shape, to thereby form a glass roll (R). The cutting step includes winding a thread-like peeled material (Ge) generated from an end portion of the product portion (Gd) in a width direction around a rod-shaped collecting member (20a), to thereby collect the thread-like peeled material (Ge).
    Type: Application
    Filed: April 21, 2017
    Publication date: May 23, 2019
    Inventors: Naohiro IKAI, Kaoru MITSUGI, Shuji AKIYAMA, Hiroki MORI, Koichi MORI, Yasuhiro UEMURA
  • Patent number: 10241431
    Abstract: Toner particles contain a non-crystalline polyester resin. The toner particles further contain 10 parts by mass to 30 parts by mass of a crystalline polyester resin, 30 parts by mass to 50 parts by mass of a styrene-acrylic acid-based resin, and 8 parts by mass to 15 parts by mass of an ester wax relative to 100 parts by mass of the non-crystalline polyester resin. The crystalline polyester resin includes a repeating unit derived from an acrylic acid-based monomer and a repeating unit derived from a styrene-based monomer. The styrene-acrylic acid-based resin includes a repeating unit derived from an acrylic acid-based monomer having an amino group and has an amino group ratio of 40% to 60%. The ester wax in the toner particles has a dispersion diameter of 500 nm to 1,000 nm.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: March 26, 2019
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Kohei Yamauchi, Hiroki Uemura
  • Publication number: 20190072177
    Abstract: A vehicle shifting device is a shift-by-wire vehicle shifting device for changing a shift-range of a vehicle among a plurality of shift-ranges including a parking range, a reverse range, a neutral range, and a drive range based on manipulation made by a driver. The vehicle shifting device includes a shift lever that is set to positions corresponding to the plurality of shift-ranges, a detector that detects the position of the shift lever, and a lever holder that keeps the shift lever in one of the positions while the shift-range is kept in a predetermined shift-range, the one of the positions corresponding to the predetermined shift-range.
    Type: Application
    Filed: August 30, 2018
    Publication date: March 7, 2019
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Masayuki TOKUMO, Tomonori OHTSUBO, Hiroki UEMURA, Yoshito HIRATA, Kouji TOKUNAGA
  • Publication number: 20190061568
    Abstract: In a seat for a vehicle which comprises a seat body, a slide mechanism, and a lift mechanism, the lift mechanism is configured such that a hip point of a specified physique occupant seated on the seat body draws a track which is approximated to a virtual rotational track of the hip point around a heel point when viewed from a vehicle side, whereby a change quantity of an ankle's angle is restricted below a first threshold and a change quantity of a knee's angle is restricted below a second threshold.
    Type: Application
    Filed: August 14, 2018
    Publication date: February 28, 2019
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Yoshito HIRATA, Hiroki UEMURA, Hiroaki MATSUBARA, Tomonori OHTSUBO
  • 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
  • Publication number: 20180373173
    Abstract: An electrostatic latent image developing toner includes toner particles each including a toner mother particle and an external additive. The toner mother particle includes a composite core and a shell layer. The composite core is a composite of a toner core, organic particles, and polyhedral magnetic particles. The organic particles each contain a releasing agent and adhere to a surface of the toner core. The magnetic particles include magnetic particles adhering to the surface of the toner core and magnetic particles adhering to surfaces of the organic particles. An amount of the magnetic particles is 0.5 parts by mass to 2.0 parts by mass relative to 100 parts by mass of the toner cores. In a cross-sectional image of each toner particle, an area of protruding portions of the magnetic particles, which protrude from the shell layer, accounts for 10% to 75% of an overall area of the magnetic particles.
    Type: Application
    Filed: June 20, 2018
    Publication date: December 27, 2018
    Applicant: KYOCERA Document Solutions Inc.
    Inventor: Hiroki UEMURA
  • 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
  • Patent number: 10090797
    Abstract: A motor control apparatus that controls a motor equipped with a cooling apparatus includes: an acquisition unit to acquire the temperature of the motor; a drive control unit to drive the motor and output a driving state and an operating condition of the motor as an operation information signal; and a cause determination unit to determine, on the basis of the temperature of the motor and the operation information signal, at least one of a plurality of causes of heat generation as a cause of heat generation by the motor.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: October 2, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kazuki Takahei, Toshihiro Azuma, Hiroki Uemura
  • Publication number: 20180198402
    Abstract: A motor control apparatus that controls a motor equipped with a cooling apparatus includes: an acquisition unit to acquire the temperature of the motor; a drive control unit to drive the motor and output a driving state and an operating condition of the motor as an operation information signal; and a cause determination unit to determine, on the basis of the temperature of the motor and the operation information signal, at least one of a plurality of causes of heat generation as a cause of heat generation by the motor.
    Type: Application
    Filed: May 11, 2016
    Publication date: July 12, 2018
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kazuki TAKAHEI, Toshihiro AZUMA, Hiroki UEMURA
  • Patent number: 10001717
    Abstract: An electrostatic latent image developing toner includes a plurality of toner particles each including a composite core and a shell layer covering a surface of the composite core. The composite core is a composite of a toner core and a plurality of organic particles each adhering to a surface of the toner core. The shell layer contains a first resin having a glass transition point of at least 50° C. and no greater than 90° C. The organic particles each contain a releasing agent and a second resin having a glass transition point of at least 90° C. and no greater than 110° C.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: June 19, 2018
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Hiroki Uemura, Kohei Yamauchi
  • Publication number: 20180149991
    Abstract: Toner particles contain a non-crystalline polyester resin. The toner particles further contain 10 parts by mass to 30 parts by mass of a crystalline polyester resin, 30 parts by mass to 50 parts by mass of a styrene-acrylic acid-based resin, and 8 parts by mass to 15 parts by mass of an ester wax relative to 100 parts by mass of the non-crystalline polyester resin. The crystalline polyester resin includes a repeating unit derived from an acrylic acid-based monomer and a repeating unit derived from a styrene-based monomer. The styrene-acrylic acid-based resin includes a repeating unit derived from an acrylic acid-based monomer having an amino group and has an amino group ratio of 40% to 60%. The ester wax in the toner particles has a dispersion diameter of 500 nm to 1,000 nm.
    Type: Application
    Filed: November 8, 2017
    Publication date: May 31, 2018
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Kohei YAMAUCHI, Hiroki UEMURA
  • Publication number: 20170343913
    Abstract: An electrostatic latent image developing toner includes a plurality of toner particles each including a composite core and a shell layer covering a surface of the composite core. The composite core is a composite of a toner core and a plurality of organic particles each adhering to a surface of the toner core. The shell layer contains a first resin having a glass transition point of at least 50° C. and no greater than 90° C. The organic particles each contain a releasing agent and a second resin having a glass transition point of at least 90° C. and no greater than 110° C.
    Type: Application
    Filed: May 25, 2017
    Publication date: November 30, 2017
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Hiroki UEMURA, Kohei YAMAUCHI
  • 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