Patents by Inventor Hirokazu KAKEI

Hirokazu KAKEI 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: 11865846
    Abstract: An inkjet printer includes a support table supporting a waste liquid tank and being displaceable in accordance with a weight of the waste liquid tank, a first sensor to detect that the support table has reached a first position, a second sensor to detect that the support table has reached a second position, a first determinator to determine that the waste liquid tank is in a near-end state when the support table is detected by the first sensor to have reached the first position, and a notifier to notify a user of the near-end state when the first determinator determines that the waste liquid tank is in the near-end state.
    Type: Grant
    Filed: February 28, 2022
    Date of Patent: January 9, 2024
    Assignee: ROLAND DG CORPORATION
    Inventors: Akihiro Suzuki, Hirokazu Kakei
  • Publication number: 20220219457
    Abstract: An inkjet printer includes a support table supporting a waste liquid tank and being displaceable in accordance with a weight of the waste liquid tank, a first sensor to detect that the support table has reached a first position, a second sensor to detect that the support table has reached a second position, a first determinator to determine that the waste liquid tank is in a near-end state when the support table is detected by the first sensor to have reached the first position, and a notifier to notify a user of the near-end state when the first determinator determines that the waste liquid tank is in the near-end state.
    Type: Application
    Filed: February 28, 2022
    Publication date: July 14, 2022
    Inventors: Akihiro SUZUKI, Hirokazu KAKEI
  • Patent number: 10479093
    Abstract: A printer includes a head that injects a liquid, a cleaning mechanism, a waste liquid path, a waste liquid tank that is detachably attached and collects waste liquid, a displaceable member that is displaced to a first position when the waste liquid tank is attached and is displaced to a second position when the waste liquid tank is detached, a liquid receiving portion that is provided on the displaceable member and is located directly below an outlet of the waste liquid path when the waste liquid tank is not attached, a detection target that is provided on the displaceable member and moves together with the displaceable member, and a sensor that detects the detection target.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: November 19, 2019
    Assignee: ROLAND DG CORPORATION
    Inventors: Akihiro Suzuki, Hirokazu Kakei
  • Publication number: 20190193405
    Abstract: A printer includes a head that injects a liquid, a cleaning mechanism, a waste liquid path, a waste liquid tank that is detachably attached and collects waste liquid, a displaceable member that is displaced to a first position when the waste liquid tank is attached and is displaced to a second position when the waste liquid tank is detached, a liquid receiving portion that is provided on the displaceable member and is located directly below an outlet of the waste liquid path when the waste liquid tank is not attached, a detection target that is provided on the displaceable member and moves together with the displaceable member, and a sensor that detects the detection target.
    Type: Application
    Filed: December 21, 2018
    Publication date: June 27, 2019
    Inventors: Akihiro SUZUKI, Hirokazu KAKEI