Patents by Inventor Yutaka Saito

Yutaka Saito 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: 20180231401
    Abstract: A rotary encoder includes a control part having a storage section storing a plurality of parameters regarding error signal components at a reference rotation speed, the error signal components respectively being superposed on an “A”-phase signal and a “B”-phase signal in proportion to a rotation speed of a rotor body, and a rotation speed calculation section structured to measure a reception interval of a requirement signal and calculate a current rotation speed of the rotor body. The control part is structured to convert a parameter stored in the storage section to a value at the current rotation speed based on a ratio between the reference rotation speed and the current rotation speed, correction processing correcting the “A”-phase signal and the “B”-phase signal is executed based on the value converted, and the rotation position of the rotor body is calculated by using a corrected “A”-phase signal and a corrected “B”-phase signal.
    Type: Application
    Filed: February 13, 2018
    Publication date: August 16, 2018
    Inventors: Hirokatsu OKUMURA, Yutaka SAITO, Hitoshi JOKO
  • Publication number: 20180231402
    Abstract: A rotary encoder may include a magnet, a magnetic sensor, and a control part configured to calculate a rotation position of the rotor body based on an output signal outputted from the magnetic sensor. The control part includes a temperature detecting section configured to detect temperature of the magnetic sensor, an offset voltage calculation section configured to calculate an offset voltage of the magnetic sensor based on the output signal from the magnetic sensor, and a storage section which stores a slope and an intercept of a primary approximate expression calculated by a relationship between temperatures previously detected by the temperature detecting section and the offset voltages previously calculated by the offset voltage calculation section. The control part executes offset voltage estimate processing based on the slope and the intercept stored in the storage section and correction processing which corrects the output signal from the magnetic sensor.
    Type: Application
    Filed: February 13, 2018
    Publication date: August 16, 2018
    Inventors: Hirokatsu OKUMURA, Yutaka SAITO, Hitoshi JOKO
  • Publication number: 20180231399
    Abstract: A rotary encoder may include a first sensor unit including a first magnet, and a first magnetosensitive unit facing the first magnet; a second sensor unit including a second magnet with a plurality of pairs of N poles and S poles alternately magnetized, and a second magnetosensitive unit facing the second magnet; a circuit to generate pulses for counting from an output of the second sensor unit; and a counter to count the pulses. During activation, an angle position of the rotating body is calculated based on outputs of a first and second sensor unit, and after activation, pulse counting is counted by a counter.
    Type: Application
    Filed: February 14, 2018
    Publication date: August 16, 2018
    Inventors: Hirokatsu OKUMURA, Yutaka SAITO, Hitoshi JOKO
  • Patent number: 10024457
    Abstract: A throttle valve 10 continuously increases/decreases the flow rate of air flowing through a communication hole 17 through which a first port 11 and a second port 12 are communicated with each other, by using a throttle valve element 22. A valve seat member 15 having the communication hole 17 is attached to a housing 13. An electric motor 25 is attached to a motor housing hole 24 formed in the housing 13. The throttle valve element 22 is driven in an axial direction by a motor shaft 28 of the electric motor 25. A gap between the motor housing hole 24 and the electric motor 25 is sealed by a fixed sealing member 41 having a large diameter, and the motor shaft 28 is sealed by a rotary sealing member 42 having a small diameter, whereby the throttle valve element can be driven by the electric motor having a small output.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: July 17, 2018
    Assignee: Koganei Corporation
    Inventors: Yutaka Saito, Ryotaro Oba
  • Patent number: 9999954
    Abstract: A machine tool that can output an abnormal noise is provided. A machine tool includes: an input unit configured to receive an input of a setting for defining an operation mode of the machine tool; a storage unit configured to store sound generated during a normal operation of the machine tool and acquired in advance; a sound collection unit configured to collect sound in the machining area; a sound selection unit configured to extract a part of sound collected in the machining area in accordance with the setting input for outputting sound to the outside of the machine tool; and a sound output unit configured to output sound extracted by the sound selection unit to the outside of the machining area.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: June 19, 2018
    Assignee: DMG MORI SEIKI CO., LTD.
    Inventors: Yoichi Okamoto, Eiichiro Gomi, Hiroki Nakao, Yutaka Saito
  • Publication number: 20180088479
    Abstract: An electrostatic charge image developing toner set includes an electrostatic charge image developing black toner that includes black toner particles including a black colorant, a binder resin, and a release agent, and inorganic particles containing an oil; and an electrostatic charge image developing color toner that includes color toner particles including a color colorant, a binder resin, and a release agent, and inorganic particles containing an oil, wherein a proportion of the release agent exposed to a surface of the color toner particles is greater than a proportion of the release agent exposed to a surface of the black toner particles.
    Type: Application
    Filed: April 24, 2017
    Publication date: March 29, 2018
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Hiroki OHMORI, Yutaka SAITO, Yuka YAMAGISHI, Fusako KIYONO
  • Patent number: 9904198
    Abstract: An electrostatic charge image developing toner includes toner particles containing a binder resin and a release agent; and an external additive containing fatty acid metal salt particles, wherein a non-attachment rate representing a percentage of the fatty acid metal salt particles not attached to the toner particles before ultrasonic desorption treatment is 45% or less and a weak attachment rate representing a percentage determined by subtracting the non-attachment rate from a percent of the fatty acid metal salt particles not attached to the toner particles after ultrasonic desorption treatment is 55% or more.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: February 27, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Hiroki Omori, Mona Tasaki, Yutaka Saito, Yuka Yamagishi, Fusako Kiyono
  • Patent number: 9904191
    Abstract: An electrostatic charge image developing toner set includes an electrostatic charge image developing black toner that includes black toner particles including a black colorant, a binder resin, and a release agent, and inorganic particles having an average particle diameter of 50 nm to 300 nm; and an electrostatic charge image developing color toner that includes color toner particles including a color colorant, a binder resin, and a release agent, and inorganic particles having an average particle diameter of 50 nm to 300 nm, wherein a proportion of the release agent exposed to a surface of the color toner particles is greater than a proportion of the release agent exposed to a surface of the black toner particles.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: February 27, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Yutaka Saito, Fusako Kiyono, Hiroki Ohmori, Yuka Yamagishi
  • Patent number: 9880480
    Abstract: An electrostatic charge image developing toner includes toner particles containing a binder resin and a release agent and an external additive containing fatty acid metal salt particles and abrasive particles, wherein a ratio (B/A) of an isolation amount B of the abrasive particles isolated from the toner particles after an ultrasonic isolation treatment to an isolation amount A of the fatty acid metal salt particles isolated from the toner particles after the ultrasonic isolation treatment is from 0.3 to 2.0.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: January 30, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Hiroki Omori, Mona Tasaki, Yuka Yamagishi, Yutaka Saito, Fusako Kiyono
  • Patent number: 9835962
    Abstract: There is provided an electrostatic image-developing toner containing a binder resin, a coloring agent and a release agent having a melting temperature of 85° C. to 120° C., the toner having a sea-island structure involving a sea part containing the binder resin and an island part containing the release agent, wherein a mode value of the distribution of the eccentricity degree B of the release agent-containing island part, represented by the specific formula, is from 0.75 to 1.00 and a skewness of the distribution of the eccentricity degree B is from ?1.30 to ?0.50.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: December 5, 2017
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Satoshi Kamiwaki, Akira Matsumoto, Tsuyoshi Murakami, Satoshi Miura, Atsushi Sugawara, Yukiaki Nakamura, Kana Yoshida, Yutaka Saito, Sakon Takahashi, Yasuaki Hashimoto, Koji Sasaki, Tsutomu Furuta
  • Publication number: 20170293975
    Abstract: In an energy demand-supply plan formulation apparatus, the apparatus includes: a data coordination unit for calculating first coordination data including an electric power-generation unit-price and specific heat consumption from the electric power generation plan, for calculating second coordination data from the steam demand-supply plan, and for calculating third coordination data including an electric power generation fuel-consumption plan from the transaction plan and the electric power generation plan; a steam demand-supply planning unit for formulating a steam demand-supply plan by taking in first coordination data calculated by the data coordination unit; an electric power demand-supply planning unit for formulating a transaction plan in the electric power transaction market and an electric power generation plan therein by taking in second coordination data calculated by the data coordination unit; and a fuel demand-supply planning unit for formulating a fuel demand-supply plan by taking in third coordi
    Type: Application
    Filed: October 21, 2016
    Publication date: October 12, 2017
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yutaka SAITO, Hiroyuki HASHIMOTO, Shoichi KITAMURA, Hideaki HIRANO, Kotaro SANAI
  • Patent number: 9766567
    Abstract: An electrostatic-image developing toner contains toner particles and particles of a metallic salt of a fatty acid deposited on the toner particles. The particles of the metallic salt of the fatty acid contain 0.0008% to 0.01% by mass of iron.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: September 19, 2017
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Mona Tasaki, Fusako Kiyono, Yutaka Saito, Hiroki Ohmori, Yuka Yamagishi
  • Publication number: 20170242356
    Abstract: An electrostatic charge image developing toner includes toner particles, polishing agent particles which have a number particle size distribution having two peaks, and fatty acid metal salt particles which have a number particle size distribution having one peak, wherein the toner satisfies relationships expressed by expressions: (1) Da?0.5×Dt, (2) Dc?0.5×Dt and (3) Dt?Db, wherein Da represents a particle diameter of a small-diameter-side peak in the two peaks of the number particle size distribution of the polishing agent particles, Db represents a particle diameter of a large-diameter-side peak in the two peaks of the number particle size distribution of the polishing agent particles, Dc represents a particle diameter of a peak of the number particle size distribution of the fatty acid metal salt particles, and Dt represents a volume average particle diameter of the toner particles.
    Type: Application
    Filed: July 29, 2016
    Publication date: August 24, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Yutaka SAITO, Fusako KIYONO, Mona TASAKI, Hiroki OMORI, Yuka YAMAGISHI
  • Publication number: 20170242354
    Abstract: An electrostatic charge image developing toner includes a toner particle, a polishing agent particle, and a fatty acid metal salt particle, wherein a rate of the fatty acid metal salt particles strongly attached to the surface of the toner particles is equal to or greater than 50% by number with respect to the fatty acid metal salt particles attached to the surface of the toner particles.
    Type: Application
    Filed: August 2, 2016
    Publication date: August 24, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Yutaka SAITO, Fusako KIYONO, Mona TASAKI, Hiroki OMORI, Yuka YAMAGISHI
  • Patent number: 9740120
    Abstract: An electrostatic charge image developing toner includes toner particles, polishing agent particles which have a number particle size distribution having two peaks, and fatty acid metal salt particles which have a number particle size distribution having one peak, wherein the toner satisfies relationships expressed by expressions: (1) Da?0.5×Dt, (2) Dc?0.5×Dt and (3) Dt?Db, wherein Da represents a particle diameter of a small-diameter-side peak in the two peaks of the number particle size distribution of the polishing agent particles, Db represents a particle diameter of a large-diameter-side peak in the two peaks of the number particle size distribution of the polishing agent particles, Dc represents a particle diameter of a peak of the number particle size distribution of the fatty acid metal salt particles, and Dt represents a volume average particle diameter of the toner particles.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: August 22, 2017
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Yutaka Saito, Fusako Kiyono, Mona Tasaki, Hiroki Omori, Yuka Yamagishi
  • Publication number: 20170219947
    Abstract: An electrostatic charge image developing toner includes toner particles containing a binder resin and a release agent and an external additive containing fatty acid metal salt particles and abrasive particles, wherein a ratio (B/A) of an isolation amount B of the abrasive particles isolated from the toner particles after an ultrasonic isolation treatment to an isolation amount A of the fatty acid metal salt particles isolated from the toner particles after the ultrasonic isolation treatment is from 0.3 to 2.0.
    Type: Application
    Filed: July 11, 2016
    Publication date: August 3, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Hiroki OMORI, Mona TASAKI, Yuka YAMAGISHI, Yutaka SAITO, Fusako KIYONO
  • Publication number: 20170213302
    Abstract: An energy supply and demand planning device includes a database in which are stored data necessary for a power supply and demand plan and a fuel supply and demand plan, a power supply and demand planning unit that formulates a transaction plan for a power transaction market and a power generation plan, a fuel supply and demand planning unit that formulates a transaction plan for a fuel transaction market, a power generation revision plan, and a fuel tank operation plan, a data coordination unit that carries out an exchange of data between the power supply and demand planning unit and fuel supply and demand planning unit, and an operation control unit that carries out a determination of a start and convergence of operations in the power supply and demand planning unit and fuel supply and demand planning unit.
    Type: Application
    Filed: November 22, 2016
    Publication date: July 27, 2017
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yutaka SAITO, Hiroyuki HASHIMOTO, Shoichi KITAMURA, Hideaki HIRANO, Kotaro SANAI
  • Publication number: 20170199478
    Abstract: An electrostatic-image developing toner contains toner particles and particles of a metallic salt of a fatty acid deposited on the toner particles. The particles of the metallic salt of the fatty acid contain 0.0008% to 0.01% by mass of iron.
    Type: Application
    Filed: July 15, 2016
    Publication date: July 13, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Mona TASAKI, Fusako KIYONO, Yutaka SAITO, Hiroki OHMORI, Yuka YAMAGISHI
  • Publication number: 20170190008
    Abstract: A tool changer is composed of a support shaft, a forward/backward movement drive motor moving the support shaft upward and downward, a rotation drive motor rotating the support shaft about an axis, a tool change arm having tool grippers formed at both ends thereof, and an air blow mechanism discharging compressed air to a tool and a next tool gripped by the tool grippers. In tool change using this tool changer, in a positioning operation, the tool change arm is rotated by degrees and compressed air is discharged toward the tool and the next tool by the air blow mechanism.
    Type: Application
    Filed: April 21, 2015
    Publication date: July 6, 2017
    Applicant: DMG Mori Co., LTD.
    Inventors: Masao Kanamoto, Yutaka Saito
  • Publication number: 20170184989
    Abstract: An electrostatic charge image developing toner includes toner particles containing a binder resin and a release agent; and an external additive containing fatty acid metal salt particles, wherein a non-attachment rate representing a percentage of the fatty acid metal salt particles not attached to the toner particles before ultrasonic desorption treatment is 45% or less and a weak attachment rate representing a percentage determined by subtracting the non-attachment rate from a percent of the fatty acid metal salt particles not attached to the toner particles after ultrasonic desorption treatment is 55% or more.
    Type: Application
    Filed: April 15, 2016
    Publication date: June 29, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Hiroki OMORI, Mona TASAKI, Yutaka SAITO, Yuka YAMAGISHI, Fusako KIYONO