Patents by Inventor Jumpei ARAI

Jumpei ARAI 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).

  • Publication number: 20250028005
    Abstract: A battery capacity calculation device includes: a controller configured to: acquire, while a battery is in charge, a first voltage value and a charge current value of the battery, acquire, while charging of the battery is in pause, a second voltage value of the battery, calculate an impedance value of the battery by using the first voltage value, the second voltage value, and the charge current value, calculate an impedance growth that is a ratio of the impedance value to an initial impedance value recorded in a memory in advance, acquire the number of cycles of the battery, acquire time until a temperature of the battery falls within a predetermined temperature range and an output voltage value of the battery falls within a predetermined voltage range, and calculate a full charge capacity of the battery by using the number of cycles, the impedance growth, and the time.
    Type: Application
    Filed: July 15, 2024
    Publication date: January 23, 2025
    Applicant: Lenovo (Beijing) Limited
    Inventors: Yuta Hirano, Yue Tan, Hiromitsu Yamaguchi, Daisuke Arai, Jumpei Kawakami
  • Patent number: 10645266
    Abstract: A stereo image pickup unit includes: first and second image pickup apparatuses including first and second image pickup devices and first and second mount boards, the image pickup apparatuses being formed in a same shape each other; and a holding frame for holding the first and second image pickup devices, the first and second mount boards including non-mounting surfaces perpendicular to rear surfaces of the first and second image pickup devices and projecting toward an outer side of projection surfaces of the first and second image pickup devices, the holding frame holding the first and second image pickup apparatuses such that the non-mounting surfaces are opposed to each other on a parallax direction inner side.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: May 5, 2020
    Assignee: OLYMPUS CORPORATION
    Inventors: Hirokazu Ichihara, Hiroshi Unsai, Toshiyuki Fujii, Mayumi Imai, Teruyuki Nishihara, Jumpei Arai, Masahiro Sato
  • Publication number: 20190199895
    Abstract: A stereo image pickup unit includes: first and second image pickup apparatuses including first and second image pickup devices and first and second mount boards, the image pickup apparatuses being formed in a same shape each other; and a holding frame for holding the first and second image pickup devices, the first and second mount boards including non-mounting surfaces perpendicular to rear surfaces of the first and second image pickup devices and projecting toward an outer side of projection surfaces of the first and second image pickup devices, the holding frame holding the first and second image pickup apparatuses such that the non-mounting surfaces are opposed to each other on a parallax direction inner side.
    Type: Application
    Filed: March 1, 2019
    Publication date: June 27, 2019
    Applicant: OLYMPUS CORPORATION
    Inventors: Hirokazu ICHIHARA, Hiroshi UNSAI, Toshiyuki FUJII, Mayumi IMAI, Teruyuki NISHIHARA, Jumpei ARAI, Masahiro SATO
  • Publication number: 20180045948
    Abstract: A stereo image pickup unit includes a first image pickup device configured to receive a first optical image formed by a first objective optical system, a second image pickup device configured to receive a second optical image formed by a second objective optical system, a single centering glass that is disposed on optical paths of the respective first and second optical images and to which light receiving surfaces of the respective first and second image pickup devices are positioned and fixed through bonding, and a holding frame that holds the first and second image pickup devices through the centering glass.
    Type: Application
    Filed: October 25, 2017
    Publication date: February 15, 2018
    Applicant: OLYMPUS CORPORATION
    Inventors: Hiroshi UNSAI, Hirokazu ICHIHARA, Toshiyuki FUJII, Teruyuki NISHIHARA, Mayumi IMAI, Jumpei ARAI, Masahiro SATO