Patents by Inventor Hiromi Yoshikawa

Hiromi Yoshikawa 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: 10554880
    Abstract: An image processing system performs image processing on images including overlapping image regions as overlapping regions. The system includes a calculator configured to calculate an evaluation value for evaluating each image using pixel values of pixels in each overlapping region; a determination controller configured to determine, based on the calculated evaluation values, whether there is an image to be corrected in the images; an image determiner configured to, when there is the image to be corrected, determine a correction reference image as a reference, out of the images, based on the evaluation values; and an image corrector configured to correct the image to be corrected based on the correction reference image.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: February 4, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Hiromi Yoshikawa, Kazuhiro Yoshida
  • Publication number: 20170155867
    Abstract: Disclosed is a display device including a passenger image capture unit configured to capture information of a passenger who is riding in a vehicle together with a driver of the vehicle; an image generator configured to generate an image that shows a condition of the passenger based on the information that is captured by the passenger image capture unit; and an image display unit configured to superimpose the image with a visual field of the driver, and configured to display the image in the visual field of the driver.
    Type: Application
    Filed: April 30, 2015
    Publication date: June 1, 2017
    Applicant: Ricoh Company, Ltd.
    Inventors: Soichiro YOKOTA, Kenichiroh SAISHO, Hiromi YOSHIKAWA, Tomoko ISHIGAKI, Fumiko SAKOH
  • Patent number: 9635286
    Abstract: There is provided an image processing apparatus including imaging elements, including: a selection unit configured to select any one of the first image and the second image as a selected image based on a first pixel included in the first image and a second pixel included in the second image, wherein the first pixel and the second pixel respectively belong to a duplicated area, the duplicated area being an area of a captured object overlapping in respective images; a calculation unit configured to calculate a correction coefficient for correcting a pixel before correction based on a selected pixel and the pixel before correction, a correction unit configured to correct the pixel before correction based on the correction coefficient to generate an image after correction; and an image generation unit configured to generate an output image based on the selected image and the image after correction.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: April 25, 2017
    Assignee: Ricoh Company, Ltd.
    Inventor: Hiromi Yoshikawa
  • Publication number: 20170094169
    Abstract: An image processing system performs image processing on images including overlapping image regions as overlapping regions. The system includes a calculator configured to calculate an evaluation value for evaluating each image using pixel values of pixels in each overlapping region; a determination controller configured to determine, based on the calculated evaluation values, whether there is an image to be corrected in the images; an image determiner configured to, when there is the image to be corrected, determine a correction reference image as a reference, out of the images, based on the evaluation values; and an image corrector configured to correct the image to be corrected based on the correction reference image.
    Type: Application
    Filed: May 20, 2015
    Publication date: March 30, 2017
    Inventors: Hiromi YOSHIKAWA, Kazuhiro YOSHIDA
  • Publication number: 20160134817
    Abstract: There is provided an image processing apparatus including imaging elements, including: a selection unit configured to select any one of the first image and the second image as a selected image based on a first pixel included in the first image and a second pixel included in the second image, wherein the first pixel and the second pixel respectively belong to a duplicated area, the duplicated area being an area of a captured object overlapping in respective images; a calculation unit configured to calculate a correction coefficient for correcting a pixel before correction based on a selected pixel and the pixel before correction, a correction unit configured to correct the pixel before correction based on the correction coefficient to generate an image after correction; and an image generation unit configured to generate an output image based on the selected image and the image after correction.
    Type: Application
    Filed: October 27, 2015
    Publication date: May 12, 2016
    Applicant: RICOH COMPANY, LTD.
    Inventor: Hiromi YOSHIKAWA
  • Patent number: 4463473
    Abstract: The present invention relates to a vacuum cleaner in which an alarm sound is generated by introducing air from the exterior in bypassing relation to a filter 8 when a suction load imposed on a fan motor 3 exceeds a predetermined value. The alarm sound can be emitted or stopped without adversely affecting the introduction of bypassing air toward the fan motor 3. With such an arrangement, the vacuum cleaner can be used conveniently, and the fan motor 3 is prevented from being burned out.
    Type: Grant
    Filed: December 23, 1981
    Date of Patent: August 7, 1984
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Seiichi Nakada, Hiromi Yoshikawa, Hiroshi Ohno, Tsuneo Nishijima, Hiroshi Kawakami