Patents by Inventor Kei Yuasa

Kei Yuasa 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: 12360712
    Abstract: An image processing system includes: an image reader that reads an image formed on a recording medium; an inspector that performs an inspection of an error of the image read by the image reader; and a specifier that specifics a countermeasure on a basis of information related to a result of the inspection by the inspector and a predetermined proposal condition.
    Type: Grant
    Filed: November 13, 2023
    Date of Patent: July 15, 2025
    Assignee: Konica Minolta, Inc.
    Inventors: Motoki Hironaka, Yutaka Miyasaka, Takenobu Kimura, Kei Okamura, Kei Yuasa, Tomohiro Mikami
  • Publication number: 20250102962
    Abstract: An image forming apparatus includes a developing device that develops a latent image by causing toner to adhere to the latent image via a toner carrier disposed opposite a latent image carrier on which the latent image is formed. The developing device includes a drive transmitter that transmits a driving force to a toner conveyor that conveys the toner, and the drive transmitter performs switching between a first operation of transmitting the driving force for conveying the toner to the toner conveyor and a second operation of vibrating a preventer that is provided in the developing device and prevents the toner from scattering.
    Type: Application
    Filed: September 19, 2024
    Publication date: March 27, 2025
    Inventors: Takashi AKAZAWA, Takefumi NISHIO, Toshihiro WAZUMI, Ryoei IKARI, Kei YUASA
  • Patent number: 12226999
    Abstract: An image forming apparatus includes an image former and a flattener. The image former forms an image on a recording medium. The flattener is disposed upstream of the image former in a conveying direction of the recording medium, and flattens the recording medium before the image former forms the image on the recording medium.
    Type: Grant
    Filed: September 22, 2022
    Date of Patent: February 18, 2025
    Assignee: KONICA MINOLTA, INC.
    Inventor: Kei Yuasa
  • Patent number: 12024180
    Abstract: An abnormality determination device is applied to a vehicle provided with a transmission configured to transmit power by rotation of a shaft. The abnormality determination device includes a processor and a memory. The memory configured to store mapping data that is data that defines mapping learned by machine learning. The processor is configured to execute an acquisition process and a determination process. The acquisition process is a process of acquiring a variable indicating a time-series data of a rotation speed of the shaft and using the variable as a value of an input variable of the mapping. The determination process is a process of determining whether an abnormality has occurred in the transmission based on a value of the output variable acquired using the value of the input variable and the mapping.
    Type: Grant
    Filed: July 21, 2021
    Date of Patent: July 2, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideaki Bunazawa, Tetsuya Yoshikawa, Kei Yuasa, Kenichi Yamaguchi
  • Publication number: 20240176556
    Abstract: An image processing system includes: an image reader that reads an image formed on a recording medium; an inspector that performs an inspection of an error of the image read by the image reader; and a specifier that specifics a countermeasure on a basis of information related to a result of the inspection by the inspector and a predetermined proposal condition.
    Type: Application
    Filed: November 13, 2023
    Publication date: May 30, 2024
    Inventors: MOTOKI HIRONAKA, YUTAKA MIYASAKA, TAKENOBU KIMURA, KEI OKAMURA, KEI YUASA, TOMOHIRO MIKAMI
  • Patent number: 11915536
    Abstract: An anomaly determination apparatus for a vehicle that includes a transmission includes an execution device and a memory device. The memory device is configured to store map data that defines pre-trained map, which has been trained through machine learning. When a variable representing time-series data of a rotation speed of a gear is fed to the map as an input variable, the map outputs a state variable representing a state of the gear as an output variable. The execution device is configured to execute: an obtaining process that obtains the variable representing the time-series data as a value of the input variable; and a determination process that determines whether there is an anomaly in the transmission based on a value of the output variable that is output by the map when the value of the input variable is fed to the map.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: February 27, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideaki Bunazawa, Tetsuya Yoshikawa, Kei Yuasa, Kenichi Yamaguchi
  • Patent number: 11796054
    Abstract: A storage device stores a mapping data entry that specifies a mapping and includes data learned through machine learning. A detection value of an oil temperature sensor is an oil temperature detection value. When oil temperature relation data, which is data corresponding to time series data of the oil temperature detection value, is input to the mapping as an input variable, the mapping outputs an output variable that determines whether a frictional engagement element has an anomaly. Processing circuitry executes an obtainment process that obtains the input variable and an anomaly determination process that determines whether the frictional engagement element has an anomaly based on the output variable that is output from the mapping as a result of inputting the input variable obtained in the obtainment process into the mapping.
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: October 24, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideaki Bunazawa, Tetsuya Yoshikawa, Kei Yuasa, Kenichi Yamaguchi
  • Publication number: 20230114018
    Abstract: An image forming apparatus includes an image former and a flattener. The image former forms an image on a recording medium. The flattener is disposed upstream of the image former in a conveying direction of the recording medium, and flattens the recording medium before the image former forms the image on the recording medium.
    Type: Application
    Filed: September 22, 2022
    Publication date: April 13, 2023
    Applicant: Konica Minolta, Inc.
    Inventor: Kei YUASA
  • Patent number: 11500330
    Abstract: Provided is an image forming apparatus including an image carrier, an exposure device, a developing device that supplies a developer to form a toner image, and a hardware processor that controls the image carrier, the exposure device, and the developing device. The image forming apparatus further includes a fume prevention plate that covers a part of an internal space of the developing device where the developing roller is disposed and the developer is stored and that prevents the developer from scattering outside from the internal space, a suction duct, and an air suction device. One end of the suction duct is connected to the internal space and another end of the suction duct is connected to the air suction device. The fume prevention plate includes a movable portion. A position of the movable portion can be changed between a first position and a second position different from the first position.
    Type: Grant
    Filed: October 18, 2021
    Date of Patent: November 15, 2022
    Assignee: KONICA MINOLTA, INC.
    Inventors: Shota Sakurai, Kei Yuasa, Takenobu Kimura, Tetsuya Ishikawa
  • Patent number: 11402791
    Abstract: Provided is an image forming apparatus including: a transfer member; a first image carrier on which a first toner image using toner of a first color is formed; a second image carrier which is provided on a downstream side relative to the first image carrier in a moving direction (rotating direction) of the transfer member, and on which a second toner image using toner of a second color is formed; a lubricant supply section that supplies a lubricant to the second image carrier; and a control section that controls a supply amount of the lubricant to the second image carrier in accordance with an overlap amount between the first toner image and the second toner image which are transferred from the first image carrier and the second image carrier to the transfer member.
    Type: Grant
    Filed: October 7, 2021
    Date of Patent: August 2, 2022
    Assignee: Konica Minolta, Inc.
    Inventors: Kei Yuasa, Takenobu Kimura, Takashi Akazawa, Kei Okamura
  • Publication number: 20220121151
    Abstract: Provided is an image forming apparatus including an image carrier, an exposure device, a developing device that supplies a developer to form a toner image, and a hardware processor that controls the image carrier, the exposure device, and the developing device. The image forming apparatus further includes a fume prevention plate that covers a part of an internal space of the developing device where the developing roller is disposed and the developer is stored and that prevents the developer from scattering outside from the internal space, a suction duct, and an air suction device. One end of the suction duct is connected to the internal space and another end of the suction duct is connected to the air suction device. The fume prevention plate includes a movable portion. A position of the movable portion can be changed between a first position and a second position different from the first position.
    Type: Application
    Filed: October 18, 2021
    Publication date: April 21, 2022
    Inventors: Shota SAKURAI, Kei YUASA, Takenobu KIMURA, Tetsuya ISHIKAWA
  • Publication number: 20220121149
    Abstract: Provided is an image forming apparatus including: a transfer member; a first image carrier on which a first toner image using toner of a first color is formed; a second image carrier which is provided on a downstream side relative to the first image carrier in a moving direction (rotating direction) of the transfer member, and on which a second toner image using toner of a second color is formed; a lubricant supply section that supplies a lubricant to the second image carrier; and a control section that controls a supply amount of the lubricant to the second image carrier in accordance with an overlap amount between the first toner image and the second toner image which are transferred from the first image carrier and the second image carrier to the transfer member.
    Type: Application
    Filed: October 7, 2021
    Publication date: April 21, 2022
    Inventors: Kei YUASA, Takenobu KIMURA, Takashi AKAZAWA, Kei OKAMURA
  • Publication number: 20220044502
    Abstract: An anomaly determination apparatus for a vehicle that includes a transmission includes an execution device and a memory device. The memory device is configured to store map data that defines pre-trained map, which has been trained through machine learning. When a variable representing time-series data of a rotation speed of a gear is fed to the map as an input variable, the map outputs a state variable representing a state of the gear as an output variable. The execution device is configured to execute: an obtaining process that obtains the variable representing the time-series data as a value of the input variable; and a determination process that determines whether there is an anomaly in the transmission based on a value of the output variable that is output by the map when the value of the input variable is fed to the map.
    Type: Application
    Filed: July 12, 2021
    Publication date: February 10, 2022
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideaki BUNAZAWA, Tetsuya YOSHIKAWA, Kei YUASA, Kenichi YAMAGUCHI
  • Publication number: 20220042596
    Abstract: A storage device stores a mapping data entry that specifies a mapping and includes data learned through machine learning. A detection value of an oil temperature sensor is an oil temperature detection value. When oil temperature relation data, which is data corresponding to time series data of the oil temperature detection value, is input to the mapping as an input variable, the mapping outputs an output variable that determines whether a frictional engagement element has an anomaly. Processing circuitry executes an obtainment process that obtains the input variable and an anomaly determination process that determines whether the frictional engagement element has an anomaly based on the output variable that is output from the mapping as a result of inputting the input variable obtained in the obtainment process into the mapping.
    Type: Application
    Filed: June 25, 2021
    Publication date: February 10, 2022
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideaki BUNAZAWA, Tetsuya YOSHIKAWA, Kei YUASA, Kenichi YAMAGUCHI
  • Publication number: 20220042842
    Abstract: A device for a vehicle including a power transfer device, the power transfer device having an input pulley, an output pulley, and an endless rotary member, the device including: a memory configured to store mapping data that include data that prescribe mapping that represents correspondence between an input variable and an output variable, the data being learned through machine learning, the input variable being at least one of input rotational speed-related data, and output rotational speed-related data, the output variable specifying whether an abnormality is caused in the endless rotary member; and a processor configured to acquire the input variable, acquire the output variable corresponding to the input variable using the mapping data, and determine, based on the output variable, whether an abnormality is caused in the endless rotary member.
    Type: Application
    Filed: July 14, 2021
    Publication date: February 10, 2022
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideaki BUNAZAWA, Tetsuya YOSHIKAWA, Kei YUASA, Kenichi YAMAGUCHI
  • Publication number: 20220041174
    Abstract: An abnormality determination device is applied to a vehicle provided with a transmission configured to transmit power by rotation of a shaft. The abnormality determination device includes a processor and a memory. The memory configured to store mapping data that is data that defines mapping learned by machine learning. The processor is configured to execute an acquisition process and a determination process. The acquisition process is a process of acquiring a variable indicating a time-series data of a rotation speed of the shaft and using the variable as a value of an input variable of the mapping. The determination process is a process of determining whether an abnormality has occurred in the transmission based on a value of the output variable acquired using the value of the input variable and the mapping.
    Type: Application
    Filed: July 21, 2021
    Publication date: February 10, 2022
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideaki BUNAZAWA, Tetsuya YOSHIKAWA, Kei YUASA, Kenichi YAMAGUCHI
  • Publication number: 20200292967
    Abstract: An image forming apparatus includes an image carrier that carries a toner image, a developer that develops a toner image on the image carrier, with a developing agent containing toner and carrier, a transferor that transfers the toner image being carried by the image carrier, a collection mechanism that collects the carrier on the image carrier by a magnetic force and an electrostatic force, and a hardware processor that controls removal of the toner adhering to the collection mechanism. The collection mechanism includes a collection roller that incorporates a magnet and that is rotatable while facing the image carrier, and a voltage applicator that applies a voltage to the collection roller. The hardware processor performs a toner removal mode to remove the toner, by setting a peripheral speed of at least one of the image carrier and the collection roller to less than a peripheral speed thereof for image formation.
    Type: Application
    Filed: March 13, 2020
    Publication date: September 17, 2020
    Inventors: Kazutoshi KOBAYASHI, Junji MURAUCHI, Ryoei IKARI, Shunichi TAKAYA, Kei YUASA
  • Patent number: 10642554
    Abstract: A control apparatus includes: a communicator that communicates with an image forming apparatus capable of executing a print job; and a hardware processor that obtains, for each of the image forming apparatuses in communication with the communicator, a degree of variations in remaining endurance of each of a plurality of units included in the image forming apparatus, wherein the hardware processor assigns a print job to the image forming apparatus having the smallest degree of variations.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: May 5, 2020
    Assignee: Konica Minolta, Inc.
    Inventors: Kei Yuasa, Natsuko Minegishi, Tetsuya Ishikawa, Hiroki Shibata
  • Publication number: 20190364156
    Abstract: An image forming apparatus includes an output device and a hardware processor. The hardware processor obtains estimated deterioration information on an estimated degree of deterioration of image quality of an image. Based on the obtained estimated deterioration information, the hardware processor generates, from arbitrary image data, image data of a future image having a predicted image quality. Based on the generated image data of the future image, the hardware processor causes the output device to output the future image.
    Type: Application
    Filed: May 15, 2019
    Publication date: November 28, 2019
    Inventors: Tetsuya ISHIKAWA, Natsuko MINEGISHI, Kei YUASA, Hiroki SHIBATA
  • Patent number: 10437173
    Abstract: A developing device includes a developing agent carrier body that carries a developing agent; a supplier that has a plurality of movement areas for moving the developing agent and that supplies the developing agent to the developing agent carrier body; a confluence path that combines the developing agent moving in each of the plurality of movement areas and thereafter returns the developing agent to the plurality of movement areas; and a mixing member that mixes the developing agent entered in the confluence path.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: October 8, 2019
    Assignee: Konica Minolta, Inc.
    Inventors: Kazuteru Ishizuka, Hideaki Tanaka, Shunichi Takaya, Shota Sakurai, Kei Okamura, Kei Yuasa