Patents by Inventor Takuro Sakai

Takuro Sakai 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: 20240134299
    Abstract: An electrostatic image developer includes: a toner A to which silica particles (A) containing an elemental nitrogen-containing compound containing elemental molybdenum are externally added; and a carrier B including a core material and a coating resin layer that covers the core material and contains inorganic particles. In the silica particles (A), the ratio NMo/NSi of a Net intensity NMo of elemental molybdenum that is measured by X-ray fluorescence analysis to a Net intensity NSi of elemental silicon that is measured by the X-ray fluorescence analysis is from 0.035 to 0.45 inclusive.
    Type: Application
    Filed: April 14, 2023
    Publication date: April 25, 2024
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Moegi IGUCHI, Sakon TAKAHASHI, Yasuo KADOKURA, Takuro WATANABE, Karin SAKAI
  • Patent number: 11960243
    Abstract: An electrostatic image developer includes a toner including toner particles that include a binder resin and a release agent and have an exposure ratio of the release agent of 15% or more and 30% or less, and a carrier including magnetic particles and resin cover layers covering the magnetic particles and including inorganic particles, wherein the inorganic particles have an arithmetic average particle size of 5 nm or more and 90 nm or less, the resin cover layers have an average thickness of 0.6 ?m or more and 1.4 ?m or less, and a fine-irregularity-structure surface roughness of surfaces of the carrier three-dimensionally analyzed has, in an analysis region, a ratio B/A of an irregularity-surface area B to a plan-view area A of 1.020 or more and 1.100 or less.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: April 16, 2024
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Kazutsuna Sasaki, Yasuo Kadokura, Takuro Watanabe, Karin Sakai
  • Publication number: 20240103391
    Abstract: An electrostatic image developer includes: toner particles; silica particles that are externally added to the toner particles and include an elemental nitrogen-containing compound containing elemental molybdenum and in which the ratio (Mo/Si) of a Net intensity of elemental molybdenum that is measured by X-ray fluorescence analysis to a Net intensity of elemental silicon in the silica particles that is measured by the X-ray fluorescence analysis is from 0.035 to 0.45 inclusive; and a carrier having a relative dielectric loss factor of from 0.5 to 2.0 inclusive.
    Type: Application
    Filed: May 16, 2023
    Publication date: March 28, 2024
    Applicant: FUJIFILM BUSINESS INNOVATION CORP.
    Inventors: Yosuke TSURUMI, Takuro WATANABE, Karin SAKAI
  • Publication number: 20240094651
    Abstract: An electrostatic charge image developing carrier includes a core material and a resin coating layer that contains strontium titanate particles and coats the core material, in which a content of the strontium titanate particles is 10% by mass or more and 55% by mass or less with respect to a total mass of the resin coating layer, and a proportion of strontium atoms within a surface of the resin coating layer, the proportion being determined by X-ray photoelectron spectroscopy, is 0.2 at % or more and 1.0 at % or less.
    Type: Application
    Filed: May 28, 2023
    Publication date: March 21, 2024
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Karin SAKAI, Kazutsuna SASAKI, Yosuke TSURUMI, Yasuo KADOKURA, Takuro WATANABE
  • Patent number: 10834662
    Abstract: A communication system is provided which includes: a portable terminal; a mobility management device that manages mobility of the portable terminal; a first gateway that connects the portable terminal to a first network; and a second gateway that connects the portable terminal to a second network. Based on a result of determining whether to connect the portable terminal to the first network via the first gateway or connect the portable terminal to the second network via the second gateway, the mobility management device switches between causing the portable terminal to use first contract information for connection to the first network via the first gateway and causing the portable terminal to use second contract information for connection to the second network via the second gateway.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: November 10, 2020
    Assignee: KDDI CORPORATION
    Inventors: Takeshi Hashimoto, Takuro Sakai, Yujin Noishiki, Jun Takada
  • Publication number: 20190028957
    Abstract: A communication system is provided which includes: a portable terminal; a mobility management device that manages mobility of the portable terminal; a first gateway that connects the portable terminal to a first network; and a second gateway that connects the portable terminal to a second network. Based on a result of determining whether to connect the portable terminal to the first network via the first gateway or connect the portable terminal to the second network via the second gateway, the mobility management device switches between causing the portable terminal to use first contract information for connection to the first network via the first gateway and causing the portable terminal to use second contract information for connection to the second network via the second gateway.
    Type: Application
    Filed: September 24, 2018
    Publication date: January 24, 2019
    Inventors: Takeshi HASHIMOTO, Takuro SAKAI, Yujin NOISHIKI, Jun TAKADA
  • Patent number: 9618033
    Abstract: A remote control device is provided, which includes a control cable. The control cable includes a reinforcing wire 11 of which the both ends are fixed by anchors 14, 14, an outer casing 12 made of synthetic resin so as to be slidable to the reinforcing cable, and so as not to constrain the thermal deformation in the axial direction based on the variation of ambient temperature, and an inner cable 13 made of metal having flexibility housed in the outer casing 12 slidably. In the both ends of the inner cable, cable ends 17, 17 coupled to an operating member and an operated member are firmly fixed.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: April 11, 2017
    Assignee: HI-LEX CORPORATION
    Inventors: Kazunori Sudo, Takuro Sakai
  • Publication number: 20160047410
    Abstract: A remote control device is provided, which includes a control cable. The control cable includes a reinforcing wire 11 of which the both ends are fixed by anchors 14, 14, an outer casing 12 made of synthetic resin so as to be slidable to the reinforcing cable, and so as not to constrain the thermal deformation in the axial direction based on the variation of ambient temperature, and an inner cable 13 made of metal having flexibility housed in the outer casing 12 slidably. In the both ends of the inner cable, cable ends 17, 17 coupled to an operating member and an operated member are firmly fixed.
    Type: Application
    Filed: June 8, 2015
    Publication date: February 18, 2016
    Inventors: Kazunori SUDO, Takuro SAKAI
  • Patent number: 8534895
    Abstract: A light emitting device comprises: a light guiding plate including two facing principal surfaces and circumferential end surfaces connecting the principal surfaces; and a point-like light source facing at least one surface of the circumferential end surfaces of the light guiding plate. One surface of the circumferential end surfaces except the surface where the light source is arranged is a light emitting surface, the thickness of the light guiding plate facing the light source is smaller than the thickness of a portion constituting the light emitting surface and is smaller than the thickness of a light emitting surface of the light source, a diffusing unit is formed on at least one of the principal surfaces; and a reflection member covering peripheries of the light source and the light guiding plate except portions constituting the light emitting surfaces of the light source and the light guiding plate is provided.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: September 17, 2013
    Assignee: Minebea Co., Ltd.
    Inventors: Yasuo Ohno, Takuro Sakai
  • Publication number: 20120268965
    Abstract: A light emitting device comprises: a light guiding plate including two facing principal surfaces and circumferential end surfaces connecting the principal surfaces; and a point-like light source facing at least one surface of the circumferential end surfaces of the light guiding plate. One surface of the circumferential end surfaces except the surface where the light source is arranged is a light emitting surface, the thickness of the light guiding plate facing the light source is smaller than the thickness of a portion constituting the light emitting surface and is smaller than the thickness of a light emitting surface of the light source, a diffusing unit is formed on at least one of the principal surfaces; and a reflection member covering peripheries of the light source and the light guiding plate except portions constituting the light emitting surfaces of the light source and the light guiding plate is provided.
    Type: Application
    Filed: February 13, 2012
    Publication date: October 25, 2012
    Applicant: MINEBEA CO., LTD.
    Inventors: Yasuo OHNO, Takuro SAKAI
  • Patent number: 7952081
    Abstract: A subject is imaged for treatment of the subject such as an eye to be inspected, while irradiating a charged particle beam on the eye, so that an aim position of a charged particle beam for treatment can be determined.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: May 31, 2011
    Assignees: National University Corporation Gunma University, Japan Atomic Energy Agency
    Inventors: Hirofumi Shimada, Takashi Nakano, Takuro Sakai, Kazuo Arakawa, Mitsuhiro Fukuda, Masakazu Oikawa, Takahiro Satoh, Takashi Agematsu, Ken Yusa, Hiroyuki Katoh, Shoji Kishi, Taku Sato, Yasushi Horiuchi
  • Publication number: 20100163726
    Abstract: A subject is imaged for treatment of the subject such as an eye to be inspected, while irradiating a charged particle beam on the eye, so that an aim position of a charged particle beam for treatment can be determined.
    Type: Application
    Filed: January 12, 2007
    Publication date: July 1, 2010
    Applicants: NATIONAL UNIVERSITY CORPORATION GUNMA UNIVERSITY, JAPAN ATOMIC ENERGY AGENCY
    Inventors: Hirofumi Shimada, Takashi Nakano, Takuro Sakai, Kazuo Arakawa, Mitsuhiro Fukuda, Masakazu Oikawa, Takahiro Satoh, Takashi Agematsu, Ken Yusa, Hiroyuki Katoh, Shoji Kishi, Taku Sato, Yasushi Horiuchi
  • Publication number: 20090260474
    Abstract: The control cable includes a reinforcing wire 11 of which the both ends are fixed by anchors 14, 14, an outer casing 12 made of synthetic resin so as to be slidable to the reinforcing cable, and so as not to constrain the thermal deformation in the axial direction based on the variation of ambient temperature, and an inner cable 13 made of metal having flexibility housed in the outer casing 12 slidably.
    Type: Application
    Filed: May 29, 2007
    Publication date: October 22, 2009
    Applicant: HI-LEX CORPORATION
    Inventors: Kazunori Sudo, Takuro Sakai
  • Patent number: D842698
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: March 12, 2019
    Assignees: LOTTE CO., LTD., HOSOKAWA YOKO CO., LTD.
    Inventors: Yuichiro Moriyama, Takuro Sakai, Yuki Sugata, Atsushi Onogi, Yuka Shibata, Kazuhiro Umenaka