Patents by Inventor Jun Nakai

Jun Nakai 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: 12669764
    Abstract: An image forming apparatus includes an image forming section, an optical scanning device, an image density sensor, and a control unit. The optical scanning device scans the surface of the image carrying member with light emitted from light sources to form an electrostatic latent image. The control unit can perform light amount calibration to adjust the exposure amount of the light scanning device based on the density of a reference image detected by the image density sensor. The reference image used for light amount calibration has a dot pattern in which as many individual dots as there are light sources are arrayed at regular intervals in the main scanning direction. The dot pattern is formed repeatedly in the main and sub scanning directions. The dots forming the dot pattern are arranged at different positions in the sub scanning direction to be displaced in units of pixels from each other.
    Type: Grant
    Filed: January 2, 2025
    Date of Patent: June 30, 2026
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Jun Nakai
  • Publication number: 20260169409
    Abstract: A control unit determines a displacement of writing start positions based the density of a correction image, adjusts timings of light emission of light-emitting elements and thereby corrects the displacement of the writing start positions. When the control unit performs correction processing, the control unit performs at least one of first processing and second processing. The control unit performs the first processing by determining, based on the density of a first image, whether unevenness in image density occurs on a surface to be scanned. The control unit performs the second processing by determining, based on the density of a second image, whether a light amount abnormality occurs in any one of a plurality of light-emitting elements.
    Type: Application
    Filed: December 9, 2025
    Publication date: June 18, 2026
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Jun NAKAI, Kenshin MATSUUCHI
  • Patent number: 12436382
    Abstract: A motor that rotates a rotation shaft of a polygon mirror is mounted on a motor board. A first photoelectric conversion element senses beam light reflected by each of a plurality of mirror surfaces. A sensing target portion is provided to the rotation shaft. A light sensor is disposed apart from the motor board and includes a light emitting portion and a second photoelectric conversion element. An amplification circuit amplifies a sense signal of the second photoelectric conversion element. A control device controls a timing of starting to form an electrostatic latent image on the basis of a sense signal of the first photoelectric conversion element. The control device identifies a scanning surface that is scanning the beam light on the basis of the sense signal of the second photoelectric conversion element amplified by the amplification circuit, and adjusts a pixel pitch of the electrostatic latent image.
    Type: Grant
    Filed: September 11, 2024
    Date of Patent: October 7, 2025
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Takuto Kunimasa, Jun Nakai
  • Publication number: 20250224689
    Abstract: An image forming apparatus includes an image forming section, an optical scanning device, an image density sensor, and a control unit. The optical scanning device scans the surface of the image carrying member with light emitted from light sources to form an electrostatic latent image. The control unit can perform light amount calibration to adjust the exposure amount of the light scanning device based on the density of a reference image detected by the image density sensor. The reference image used for light amount calibration has a dot pattern in which as many individual dots as there are light sources are arrayed at regular intervals in the main scanning direction. The dot pattern is formed repeatedly in the main and sub scanning directions. The dots forming the dot pattern are arranged at different positions in the sub scanning direction to be displaced in units of pixels from each other.
    Type: Application
    Filed: January 2, 2025
    Publication date: July 10, 2025
    Applicant: KYOCERA Document Solutions Inc.
    Inventor: Jun NAKAI
  • Publication number: 20250147303
    Abstract: A motor that rotates a rotation shaft of a polygon mirror is mounted on a motor board. A first photoelectric conversion element senses beam light reflected by each of a plurality of mirror surfaces. A sensing target portion is provided to the rotation shaft. A light sensor is disposed apart from the motor board and includes a light emitting portion and a second photoelectric conversion element. An amplification circuit amplifies a sense signal of the second photoelectric conversion element. A control device controls a timing of starting to form an electrostatic latent image on the basis of a sense signal of the first photoelectric conversion element. The control device identifies a scanning surface that is scanning the beam light on the basis of the sense signal of the second photoelectric conversion element amplified by the amplification circuit, and adjusts a pixel pitch of the electrostatic latent image.
    Type: Application
    Filed: September 11, 2024
    Publication date: May 8, 2025
    Inventors: Takuto Kunimasa, Jun Nakai
  • Patent number: 12267626
    Abstract: A parking support apparatus includes a display control unit, a confirmation reception unit, and a parking control unit that performs a parking support control of a vehicle when a confirmation reception unit receives a parking region confirmation and a confirmation required region confirmation, and the confirmation reception unit simultaneously receives a single operation of the driver of the vehicle as the parking region confirmation and the confirmation required region confirmation.
    Type: Grant
    Filed: April 12, 2023
    Date of Patent: April 1, 2025
    Assignee: PANASONIC AUTOMOTIVE SYSTEMS CO., LTD.
    Inventors: Masayoshi Michiguchi, Yoshimasa Okabe, Takashi Okohira, Jun Nakai, Takanobu Ito
  • Publication number: 20240420774
    Abstract: According to one embodiment, a nonvolatile semiconductor memory device includes a memory cell array and a control unit. The memory cell array includes a plurality of memory cells arranged in a matrix. The control unit erases data of the memory cells. The control unit interrupts the erase operation of the memory cells and holds an erase condition before the interrupt in accordance with a first command during the erase operation, and resumes the erase operation based on the held erase condition in accordance with a second command.
    Type: Application
    Filed: August 26, 2024
    Publication date: December 19, 2024
    Applicant: KIOXIA CORPORATION
    Inventors: Jun NAKAI, Noboru SHIBATA
  • Patent number: 12159323
    Abstract: A vehicle monitoring apparatus includes a hardware processor functioning as an image acquisition unit, an abnormality information acquisition unit, a damage determination unit, and a damage reporting unit. The image acquisition unit serves to acquire a captured image including an image representation of an exterior of a vehicle body of a vehicle. The abnormality information acquisition unit serves to acquire vehicle-body abnormality information indicating an abnormality in the vehicle body. The damage determination unit serves to determine presence or absence of damage to the vehicle body on the basis of the captured image and the vehicle-body abnormality information. The damage reporting unit serves to report, to an information processing apparatus, a damage report including the captured image or an image generated on the basis of the captured image. The damage report is reported in accordance with on a result of the determination on the damage.
    Type: Grant
    Filed: March 2, 2022
    Date of Patent: December 3, 2024
    Assignee: PANASONIC AUTOMOTIVE SYSTEMS CO., LTD.
    Inventors: Yoshimasa Okabe, Takashi Okohira, Yuya Hamai, Yudai Ishibashi, Naoki Hayashi, Toshihiko Hashinaga, Jun Nakai, Kiyohiko Fujiwara, Masato Yuda
  • Publication number: 20240364832
    Abstract: An optical scanning device includes a scanning optical system, a housing, a skew adjustment mechanism, and a control unit. The skew adjustment mechanism rotates a skew adjustment motor in a fixed direction, so as to periodically change position of an optical element. When rotating the skew adjustment motor by a rotation amount corresponding to a half period of position change of the optical element, average value of the position change of the optical element is substantially the same as average value of the position change of the optical element per one period. The control unit calculates rotation amount of the skew adjustment motor necessary for returning the optical element to the reference position, on the basis of rotation amounts of the skew adjustment motor at three points obtained by equally dividing the position change of the optical element per half period into two, and skew amounts.
    Type: Application
    Filed: April 19, 2024
    Publication date: October 31, 2024
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Jun NAKAI, Takuto KUNIMASA
  • Patent number: 12080354
    Abstract: According to one embodiment, a nonvolatile semiconductor memory device includes a memory cell array and a control unit. The memory cell array includes a plurality of memory cells arranged in a matrix. The control unit erases data of the memory cells. The control unit interrupts the erase operation of the memory cells and holds an erase condition before the interrupt in accordance with a first command during the erase operation, and resumes the erase operation based on the held erase condition in accordance with a second command.
    Type: Grant
    Filed: April 17, 2023
    Date of Patent: September 3, 2024
    Assignee: KIOXIA CORPORATION
    Inventors: Jun Nakai, Noboru Shibata
  • Publication number: 20240176274
    Abstract: An image forming apparatus includes an image carrier, an optical member, a drive device, a motive device, and a control device. On a surface of the image carrier, a scanning line is formed, through a scanning operation with scanning light. The optical member emits the scanning light to the image carrier. The drive device changes a posture of the optical member, to adjust a skew of the scanning line on the image carrier. The motive device drives the drive device. The control device controls the motive device. Further, the control device decides that at least one of the drive device and the motive device are malfunctioning, when a skew amount remains higher than a predetermined permissible value, despite changing the posture of the optical member a predetermined number of times, through control of the drive device by the motive device.
    Type: Application
    Filed: November 22, 2023
    Publication date: May 30, 2024
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Jun NAKAI, Hideji MIZUTANI, Takuto KUNIMASA
  • Publication number: 20230260577
    Abstract: According to one embodiment, a nonvolatile semiconductor memory device includes a memory cell array and a control unit. The memory cell array includes a plurality of memory cells arranged in a matrix. The control unit erases data of the memory cells. The control unit interrupts the erase operation of the memory cells and holds an erase condition before the interrupt in accordance with a first command during the erase operation, and resumes the erase operation based on the held erase condition in accordance with a second command.
    Type: Application
    Filed: April 17, 2023
    Publication date: August 17, 2023
    Applicant: KIOXIA CORPORATION
    Inventors: Jun NAKAI, Noboru SHIBATA
  • Publication number: 20230254450
    Abstract: A parking support apparatus includes a display control unit, a confirmation reception unit, and a parking control unit that performs a parking support control of a vehicle when a confirmation reception unit receives a parking region confirmation and a confirmation required region confirmation, and the confirmation reception unit simultaneously receives a single operation of the driver of the vehicle as the parking region confirmation and the confirmation required region confirmation.
    Type: Application
    Filed: April 12, 2023
    Publication date: August 10, 2023
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Masayoshi MICHIGUCHI, Yoshimasa OKABE, Takashi OKOHIRA, Jun NAKAI, Takanobu ITO
  • Patent number: 11664077
    Abstract: According to one embodiment, a nonvolatile semiconductor memory device includes a memory cell array and a control unit. The memory cell array includes a plurality of memory cells arranged in a matrix. The control unit erases data of the memory cells. The control unit interrupts the erase operation of the memory cells and holds an erase condition before the interrupt in accordance with a first command during the erase operation, and resumes the erase operation based on the held erase condition in accordance with a second command.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: May 30, 2023
    Assignee: Kioxia Corporation
    Inventors: Jun Nakai, Noboru Shibata
  • Patent number: 11644779
    Abstract: An image forming apparatus includes an image carrier, a developing device, a control unit, and a density measuring unit. An electrostatic latent image is formed on the surface of an image carrier. A developing device supplies toner to the image carrier and develops the electrostatic latent image formed on the image carrier to form a toner image. The density measuring unit measures the toner density of the plurality of first patch toner images formed by the developing device. The control unit calculates a relationship between the toner density of the plurality of first patch toner images measured by the density measuring unit and the applied voltage applied to the developing device when the plurality of first patch toner images are formed, and adjusts the applied voltage based on a calculation result.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: May 9, 2023
    Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventor: Jun Nakai
  • Patent number: 11592922
    Abstract: An input device includes: a touch device configured to receive a user operation; an actuator configured to apply a vibration corresponding to a drive voltage to the touch device; and a processor. The processor is configured to: apply a first voltage to the actuator to vibrate the touch device with a first vibration in response to a touch-down during a touch operation, the touch-down in which a pressing force of a predetermined value or more is detected from start of touch to the touch device; and apply a second voltage lower than the first voltage to the actuator to vibrate the touch device with a second vibration in response to a touch release during the touch operation, the touch release in which a pressing force of a value lower than the predetermined value after the touch-down is detected.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: February 28, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Jun Nakai, Takashi Okohira
  • Patent number: 11480890
    Abstract: An image forming apparatus includes: a developing roller; a photosensitive drum; a first measurement device that measures a blank portion current in a first line on the photosensitive drum which extends in a scanning direction of the photosensitive drum and on which no toner patch is formed; a second measurement device that measures a measuring development current in a second line on the photosensitive drum which extends in the scanning direction of the photosensitive drum and on which a toner patch is formed; and a control device that functions as a patch setter and a first calculator. The patch setter sets a patch width of the toner patch in the scanning direction of the photosensitive drum. The first calculator calculates an actual development current based on a developable width of the photosensitive drum in the scanning direction, the patch width, the blank portion current, and the measuring development current.
    Type: Grant
    Filed: October 14, 2021
    Date of Patent: October 25, 2022
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Jun Nakai
  • Patent number: 11467523
    Abstract: An image forming apparatus includes a developing roller, a photoconductor drum, a density detector, a current detector, and a controller. The developing roller carries a toner. The photoconductor drum carries a toner patch. The density detector detects toner density of the toner patch. The current detector detects developing current flowing to the toner patch. The controller calculates an inclination of an approximate straight line approximating a relation between the toner density and the developing current. The developing roller develops three or more toner patches, different in toner density and different in developing current from one another, on the photoconductor drum. The controller calculates the inclination, using different mathematical expressions depending on whether three toner patches or four toner patches are provided.
    Type: Grant
    Filed: November 18, 2021
    Date of Patent: October 11, 2022
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Jun Nakai
  • Patent number: 11458978
    Abstract: A vehicle control device includes: detecting at least one of a position or a state of occupant in a vehicle; determining an operation inputting part that is most easily operable for the occupant from among a plurality of operation inputting parts in the vehicle based on the at least one of the position or the state of the occupant which is detected in the detecting; notifying a consent request in the vehicle with respect to a processing content scheduled to be performed in response to an occurrence of an event; and validating consent operation to the operation inputting part that is most easily operable.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: October 4, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Jun Nakai, Takashi Okohira
  • Publication number: 20220309602
    Abstract: A vehicle monitoring apparatus includes a hardware processor functioning as an image acquisition unit, an abnormality information acquisition unit, a damage determination unit, and a damage reporting unit. The image acquisition unit serves to acquire a captured image including an image representation of an exterior of a vehicle body of a vehicle. The abnormality information acquisition unit serves to acquire vehicle-body abnormality information indicating an abnormality in the vehicle body. The damage determination unit serves to determine presence or absence of damage to the vehicle body on the basis of the captured image and the vehicle-body abnormality information. The damage reporting unit serves to report, to an information processing apparatus, a damage report including the captured image or an image generated on the basis of the captured image. The damage report is reported in accordance with on a result of the determination on the damage.
    Type: Application
    Filed: March 2, 2022
    Publication date: September 29, 2022
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yoshimasa OKABE, Takashi OKOHIRA, Yuya HAMAI, Yudai ISHIBASHI, Naoki HAYASHI, Toshihiko HASHINAGA, Jun NAKAI, Kiyohiko FUJIWARA, Masato YUDA