Patents by Inventor Tatsuya Eguchi

Tatsuya Eguchi 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: 11022923
    Abstract: An image forming apparatus includes: a housing part that is capable of housing a plurality of recording materials in such a manner that one recording material is put on another; a transport part that transports a recording material from the housing part; and a hardware processor that detects a kind of the recording material transported by the transport part, detects an amount of the recording materials housed in the housing part, detects replacement of recording materials housed in the housing part, or addition of recording materials in the housing part, on the basis of a result of the detection by the hardware processor, and, on the basis of a result of the detection by the hardware processor, switches whether or not to execute, by the hardware processor, the kind detection of the recording materials housed in the housing part.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: June 1, 2021
    Assignee: Konica Minolta, Inc.
    Inventors: Shota Igo, Masahiro Kamiya, Katsuyuki Ikuta, Toshio Tsuboi, Tatsuya Eguchi
  • Publication number: 20210061602
    Abstract: A controller causes a sensor unit to perform: a first operation for detecting a front end of a sheet; and a second operation for detecting a type of the sheet performed at a timing that is based on detection of the front end of the sheet in the first operation.
    Type: Application
    Filed: August 26, 2020
    Publication date: March 4, 2021
    Inventors: Takashi WATANABE, Takeshi ISHIDA, Tatsuya EGUCHI, Toshikazu HIGASHI, Shigetaka KATO, Akinori KIMATA
  • Publication number: 20210061601
    Abstract: A conveyor conveys a sheet along a conveyance path provided with an ultrasonic sensor, and includes: an updating member that successively updates a parameter indicating aged deterioration of the conveyor; a searcher that searches a look-up table storing pieces of noise data of noises predicted to be superimposed on a detection signal of the ultrasonic sensor in accordance with a degree of the aged deterioration, and obtains a piece of noise data corresponding to a current parameter value of the conveyor; and a signal processor that uses, for signal processing, a remaining portion of the detection signal of the ultrasonic sensor excluding a portion corresponding to the piece of noise data obtained by the searcher.
    Type: Application
    Filed: September 2, 2020
    Publication date: March 4, 2021
    Inventors: Toshikazu HIGASHI, Tatsuya EGUCHI, Takashi WATANABE, Shigetaka KATO, Takeshi ISHIDA
  • Publication number: 20210066713
    Abstract: Provided is a negative electrode active material that contains silicon clathrate II and that is suitable for a negative electrode of a lithium ion secondary battery. The negative electrode active material includes a silicon material in which silicon clathrate II represented by composition formula NaxSi136 (0?x?10) is contained and a volume of a pore having a diameter of not greater than 100 nm is not less than 0.025 cm3/g.
    Type: Application
    Filed: August 25, 2020
    Publication date: March 4, 2021
    Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masanori HARATA, Tatsuya EGUCHI, Masakazu MURASE, Jun YOSHIDA, Kazuhiro SUZUKI, Daichi KOSAKA, Shinji NAKANISHI
  • Patent number: 10787001
    Abstract: An image forming apparatus including a polygon mirror that deflects a light beam, the image forming apparatus includes: an optical sensor arranged such that the light beam deflected by the polygon mirror enters the optical sensor; and a hardware processor that measures an output level of the optical sensor and calculates, as a remaining life of the polygon mirror, an operation time of the polygon mirror to when the output level becomes a threshold value in a case of assuming that the output level ongoingly changes at a rate of change over time that is a change amount of the output level per unit operation time of the polygon mirror, using the measured output level.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: September 29, 2020
    Assignee: Konica Minolta, Inc.
    Inventors: Yutaka Yamamoto, Tatsuya Eguchi, Shigetaka Kato, Taku Kimura
  • Publication number: 20200296242
    Abstract: A sheet conveyance device including: a conveyance roller that conveys a sheet; a motor that rotationally drives the conveyance roller at a constant speed; a central processing unit (CPU) that: periodically acquires temperature increase rates for the motor from a start of sheet conveyance, the temperature increase rates depending on magnitudes of effective current applied to the motor, the effective current depending on loads during sheet conveyance; and estimates a current temperature of the motor based on a cumulative value calculated from the temperature increase rates and time elapsed from the start of sheet conveyance; and a controller that executes a motor temperature control based on the estimated temperature of the motor.
    Type: Application
    Filed: March 12, 2020
    Publication date: September 17, 2020
    Inventors: Akinori KIMATA, Tatsuya EGUCHI, Takeshi ISHIDA, Takashi WATANABE
  • Patent number: 10698336
    Abstract: An image forming apparatus including a polygon mirror that deflects a light beam includes: a light emitter that emits the light beam; an optical sensor that is disposed at a position on which the light beam deflected by the polygon mirror is incident; a detector that detects a minimum level being a light intensity level of the light beam, the lowest within a range detected by the optical sensor; a switcher that switches a light intensity level of the light beam emitted from the light emitter until the detector detects the minimum level; and a determiner that determines a degree of contamination of a component on an optical path of the light beam extending from the light emitter to the optical sensor, on the basis of the minimum level detected when the light intensity level is switched by the switcher.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: June 30, 2020
    Assignee: KONICA MINOLTA, INC.
    Inventors: Tatsuya Eguchi, Hidenari Tachibe, Makoto Obayashi
  • Publication number: 20200148498
    Abstract: A stapling apparatus includes a sheet insertion portion that receives insertion of a sheet bundle, a stapler that staples the sheet bundle, a drive apparatus that drives the stapler, and a controller that controls the drive apparatus. The controller has the drive apparatus driven with first electric power when the drive apparatus operates in an on-line stapling mode in which the sheet bundle ejected from an image forming apparatus is stapled and has the drive apparatus driven with second electric power lower than maximum electric power that can be set as first electric power when the drive apparatus operates in a manual stapling mode in which the sheet bundle inserted through the sheet insertion portion is stapled.
    Type: Application
    Filed: November 13, 2019
    Publication date: May 14, 2020
    Applicant: Konica Minolta, Inc.
    Inventors: Takeshi ISHIDA, Tatsuya EGUCHI, Takashi WATANABE, Masayuki WATANABE, Akinori KIMATA
  • Patent number: 10559813
    Abstract: The negative electrode includes a current collector, a negative electrode active material layer arranged on a surface of the current collector, and a protective layer arranged on a surface of the negative electrode active material layer. The negative electrode active material layer includes a first negative electrode active material having an aspect ratio defined as “a”/“b” to fall in a range of from two or more to eight or less when a length of the major axis is defined “a” and a length of the minor axis is defined “b.” The protective layer includes a ceramic powder.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: February 11, 2020
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Atsushi Saito, Tatsuya Eguchi, Manabu Miyoshi, Jun Kaneda, Tomokuni Abe, Hiroki Oshima
  • Publication number: 20200004172
    Abstract: An image forming apparatus including a polygon mirror that deflects a light beam includes: a light emitter that emits the light beam; an optical sensor that is disposed at a position on which the light beam deflected by the polygon mirror is incident; a detector that detects a minimum level being a light intensity level of the light beam, the lowest within a range detected by the optical sensor; a switcher that switches a light intensity level of the light beam emitted from the light emitter until the detector detects the minimum level; and a determiner that determines a degree of contamination of a component on an optical path of the light beam extending from the light emitter to the optical sensor, on the basis of the minimum level detected when the light intensity level is switched by the switcher.
    Type: Application
    Filed: June 17, 2019
    Publication date: January 2, 2020
    Inventors: TATSUYA EGUCHI, HIDENARI TACHIBE, MAKOTO OBAYASHI
  • Publication number: 20190308420
    Abstract: An image forming apparatus including a polygon mirror that deflects a light beam, the image forming apparatus includes: an optical sensor arranged such that the light beam deflected by the polygon mirror enters the optical sensor; and a hardware processor that measures an output level of the optical sensor and calculates, as a remaining life of the polygon mirror, an operation time of the polygon mirror to when the output level becomes a threshold value in a case of assuming that the output level ongoingly changes at a rate of change over time that is a change amount of the output level per unit operation time of the polygon mirror, using the measured output level.
    Type: Application
    Filed: March 7, 2019
    Publication date: October 10, 2019
    Applicant: Konica Minolta, Inc.
    Inventors: Yutaka YAMAMOTO, Tatsuya EGUCHI, Shigetaka KATO, Taku KIMURA
  • Publication number: 20190196381
    Abstract: An image forming apparatus includes: a housing part that is capable of housing a plurality of recording materials in such a manner that one recording material is put on another; a transport part that transports a recording material from the housing part; and a hardware processor that detects a kind of the recording material transported by the transport part, detects an amount of the recording materials housed in the housing part, detects replacement of recording materials housed in the housing part, or addition of recording materials in the housing part, on the basis of a result of the detection by the hardware processor, and, on the basis of a result of the detection by the hardware processor, switches whether or not to execute, by the hardware processor, the kind detection of the recording materials housed in the housing part.
    Type: Application
    Filed: November 28, 2018
    Publication date: June 27, 2019
    Applicant: KONICA MINOLTA, INC.
    Inventors: Shota IGO, Masahiro KAMIYA, Katsuyuki IKUTA, Toshio TSUBOI, Tatsuya EGUCHI
  • Patent number: 10270099
    Abstract: A positive electrode for lithium-ion secondary battery includes: a lithium metallic oxide with a lamellar rock-salt structure including nickel, cobalt, and manganese; and a phosphate/carbon composite including an olivine-type phosphate compound at least some of which is coated with carbon partially. A rate of a volume resistivity of the phosphate/carbon composite to a volume resistivity of the lithium metallic oxide is 0.034 or less. The olivine-type phosphate compound is expressed by a general formula: LiMhPO4 (where “M” is at least one element selected from the group consisting of Mn, Fe, Co, Ni, Cu, Mg, Zn, V, Ca, Sr, Ba, Ti, Al, Si, B, Te and Mo, and 0<“h”<2). A content of the phosphate/carbon composite is from 15% by mass or more to 35% by mass or less when a summed mass of the lithium metallic oxide and the phosphate/carbon composite is taken as 100% by mass.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: April 23, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Yuuhi Sato, Manabu Miyoshi, Tatsuya Eguchi, Atsushi Saito
  • Patent number: 10112314
    Abstract: A post-processing apparatus includes: a moving mechanism configured to move a punching apparatus in a width direction orthogonal to a transportation direction of a sheet; and a sensor configured to optically detect a mark formed on the sheet and indicating a position to be punched. The mark is configured such that an interval in the transportation direction between a plurality of feature portions extending in the width direction is configured to be changed depending on the width direction. The moving mechanism is configured to determine a position of the punching apparatus in the width direction based on a difference between respective timings of detection of the plurality of feature portions.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: October 30, 2018
    Assignee: Konica Minolta, Inc.
    Inventors: Hiroaki Takatsu, Tatsuya Eguchi, Takeshi Ishida, Isao Watanabe, Taku Kimura
  • Patent number: 10027835
    Abstract: An image reading apparatus includes: a movable body configured to illuminate a document with light; and an apparatus body configured to wirelessly transmit power to the movable body, wherein the movable body includes receiver coils, and a feed circuit in which the receiver coils uses receiving power to supply power to a load, the apparatus body includes transmitter coils placed along a track of the receiver coils, the transmitter coils and the receiver coils are placed such that power supply efficiency of any receiver coil with the transmitter coil placed along the track of the receiver coil fluctuates, and power supply efficiency related to one receiver coil increases at a position where power supply efficiency related to the other receiver coil drops, and the feed circuit supplies power sequentially using the receiving power of the receiver coil whose power supply efficiency is increased to highest among the receiver coils.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: July 17, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Takeshi Ishida, Tatsuya Eguchi, Isao Watanabe, Hiroaki Takatsu, Taku Kimura, Atomu Nakashima
  • Patent number: 10003714
    Abstract: An image forming apparatus includes an acquiring unit configured to acquire atmosphere pressure in the installation place of the image forming apparatus, photoconductors, light sources configured to radiate laser light, and a polygon mirror configured to be rotatable. The polygon mirror exposes the photoconductors by reflecting the laser light toward the photoconductors while rotating. The image forming apparatus further includes a control device configured to control rotation of the polygon mirror. The control device outputs an enable signal for allowing the image forming apparatus to perform printing, if rotation of the polygon mirror is stabilized after start of the rotation, and advances the timing of outputting the enable signal as the atmosphere pressure increases.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: June 19, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Tatsuya Eguchi, Isao Watanabe, Takeshi Ishida, Hiroaki Takatsu, Taku Kimura, Atomu Nakashima
  • Publication number: 20180097223
    Abstract: The negative electrode includes a current collector, a negative electrode active material layer arranged on a surface of the current collector, and a protective layer arranged on a surface of the negative electrode active material layer. The negative electrode active material layer includes a first negative electrode active material having an aspect ratio defined as “a”/“b” to fall in a range of from two or more to eight or less when a length of the major axis is defined “a” and a length of the minor axis is defined “b.” The protective layer includes a ceramic powder.
    Type: Application
    Filed: April 5, 2016
    Publication date: April 5, 2018
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Atsushi SAITO, Tatsuya EGUCHI, Manabu MIYOSHI, Jun KANEDA, Tomokuni ABE, Hiroki OSHIMA
  • Publication number: 20180059571
    Abstract: An image forming apparatus includes an acquiring unit configured to acquire atmosphere pressure in the installation place of the image forming apparatus, photoconductors, light sources configured to radiate laser light, and a polygon mirror configured to be rotatable. The polygon mirror exposes the photoconductors by reflecting the laser light toward the photoconductors while rotating. The image forming apparatus further includes a control device configured to control rotation of the polygon mirror. The control device outputs an enable signal for allowing the image forming apparatus to perform printing, if rotation of the polygon mirror is stabilized after start of the rotation, and advances the timing of outputting the enable signal as the atmosphere pressure increases.
    Type: Application
    Filed: August 29, 2017
    Publication date: March 1, 2018
    Applicant: KONICA MINOLTA, INC.
    Inventors: Tatsuya EGUCHI, Isao WATANABE, Takeshi ISHIDA, Hiroaki TAKATSU, Taku KIMURA, Atomu NAKASHIMA
  • Publication number: 20180053936
    Abstract: A positive electrode for lithium-ion secondary battery includes: a lithium metallic oxide with a lamellar rock-salt structure including nickel, cobalt, and manganese; and a phosphate/carbon composite including an olivine-type phosphate compound at least some of which is coated with carbon partially. A rate of a volume resistivity of the phosphate/carbon composite to a volume resistivity of the lithium metallic oxide is 0.034 or less. The olivine-type phosphate compound is expressed by a general formula: LiMhPO4 (where “M” is at least one element selected from the group consisting of Mn, Fe, Co, Ni, Cu, Mg, Zn, V, Ca, Sr, Ba, Ti, Al, Si, B, Te and Mo, and 0<“h”<2). A content of the phosphate/carbon composite is from 15% by mass or more to 35% by mass or less when a summed mass of the lithium metallic oxide and the phosphate/carbon composite is taken as 100% by mass.
    Type: Application
    Filed: March 4, 2016
    Publication date: February 22, 2018
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Yuuhi SATO, Manabu MIYOSHI, Tatsuya EGUCHI, Atsushi SAITO
  • Publication number: 20170374217
    Abstract: An image reading apparatus includes: a movable body configured to illuminate a document with light; and an apparatus body configured to wirelessly transmit power to the movable body, wherein the movable body includes receiver coils, and a feed circuit in which the receiver coils uses receiving power to supply power to a load, the apparatus body includes transmitter coils placed along a track of the receiver coils, the transmitter coils and the receiver coils are placed such that power supply efficiency of any receiver coil with the transmitter coil placed along the track of the receiver coil fluctuates, and power supply efficiency related to one receiver coil increases at a position where power supply efficiency related to the other receiver coil drops, and the feed circuit supplies power sequentially using the receiving power of the receiver coil whose power supply efficiency is increased to highest among the receiver coils.
    Type: Application
    Filed: June 14, 2017
    Publication date: December 28, 2017
    Applicant: KONICA MINOLTA, INC.
    Inventors: Takeshi ISHIDA, Tatsuya EGUCHI, Isao WATANABE, Hiroaki TAKATSU, Taku KIMURA, Atomu NAKASHIMA