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: 11966176
    Abstract: A transfer member includes: an inner layer; and an outer layer that is adhered to the inner layer and has a hardness lower than a hardness of the inner layer.
    Type: Grant
    Filed: November 18, 2021
    Date of Patent: April 23, 2024
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Hirotaka Tanaka, Tomoaki Yoshioka, Yoko Miyamoto, Toshiaki Baba, Koichiro Yuasa, Kazuyoshi Hagiwara, Kei Tanaka
  • 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: 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: 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: 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
  • Publication number: 20190294396
    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: Application
    Filed: February 14, 2019
    Publication date: September 26, 2019
    Applicant: KONICA MINOLTA, INC.
    Inventors: Kei Yuasa, Natsuko Minegishi, Tetsuya Ishikawa, Hiroki Shibata
  • Patent number: 10338494
    Abstract: A developing apparatus includes a developer carrier that carries a developer, and a developer casing that contains the developer to be supplied to the developer carrier. An opening/closing part is capable of controlling a moving amount of the developer between a first region on one side in an axial direction of the developer carrier and a second region on the other side in the axial direction of the developer carrier by opening or closing the first region and the second region. A hardware processor controls an open/closed state of the opening/closing part in accordance with the state of the developer in the first region and the second region.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: July 2, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Shunichi Takaya, Hideaki Tanaka, Kazuteru Ishizuka, Shota Sakurai, Kei Okamura, Kei Yuasa
  • Patent number: 10241444
    Abstract: A developing device includes a hardware processor that performs control in which a developer circulation state is switched between a first state and a second state depending on states of the developer in the first and the second regions. The first state is a state in which a developer circulation path is formed in each of the first and the second regions, and the second state is a state in which a single developer circulation path is formed all through the first and the second regions.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: March 26, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Kei Okamura, Shunichi Takaya, Hideaki Tanaka, Kazuteru Ishizuka, Shota Sakurai, Kei Yuasa
  • Patent number: 10203630
    Abstract: A developing apparatus includes: a developer carrying member carrying a developer; a plurality of developer feeders accommodating the developer carried by the developer carrying member and being arranged in an axial direction of the developer carrying member; and a collecting part that collects the developer from the developer carrying member and feeds the developer to a second developer feeder different from a first developer feeder located at a position where the developer is collected from the developer carrying member in the axial direction, among the plurality of developer feeders.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: February 12, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Kei Yuasa, Shunichi Takaya, Hideaki Tanaka, Kazuteru Ishizuka, Shota Sakurai, Kei Okamura