Patents by Inventor Ken IWAKAWA

Ken IWAKAWA 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: 20230284991
    Abstract: An X-ray inspection apparatus includes: a transport unit configured to transport an article; an X-ray source configured to irradiate the article with X-rays; an X-ray detection unit configured to detect the X-rays using a photon counting method and to classify photon energy of the detected X-rays into two or more energy regions on the basis of a threshold value; a threshold value setting unit configured to set the threshold value; an X-ray image generation unit configured to generate two or more X-ray transmission images corresponding to the two or more energy regions on the basis of a detection result of the X-rays; and an inspection unit configured to inspect the article on the basis of the X-rays. The threshold value setting unit is configured to set the threshold value on the basis of gradations of the two or more X-ray transmission images.
    Type: Application
    Filed: February 10, 2023
    Publication date: September 14, 2023
    Inventors: Ken IWAKAWA, Futoshi YURUGI, Keisuke YOSHIDA
  • Publication number: 20230258581
    Abstract: An X-ray inspection apparatus includes an X-ray source configured to irradiate an article with X-rays in a plurality of energy bands, an X-ray detection unit capable of detecting the X-rays by a photon counting method, an image generation unit configured to generate an overall transmission image corresponding to the X-rays in all of the plurality of energy bands and a transmission image corresponding to the X-rays in some of the plurality of energy bands on the basis of a detection result of the X-rays by the X-ray detection unit, and an inspection unit configured to inspect the article on the basis of the overall transmission image and the transmission image.
    Type: Application
    Filed: January 26, 2023
    Publication date: August 17, 2023
    Inventors: Ken IWAKAWA, Akihiro MAENAKA, Futoshi YURUGI
  • Publication number: 20230243764
    Abstract: An X-ray inspection device includes a transport unit, an X-ray irradiation unit configured to irradiate an article with X-rays, an X-ray detection unit configured to detect the X-rays in each of a plurality of energy bands, an X-ray transmission image generation unit configured to generate a plurality of X-ray transmission images on the basis of the X-rays in each of the plurality of energy bands, and an inspection unit configured to inspect whether or not a foreign matter is present or absent in the article on the basis of a difference image between the plurality of generated X-ray transmission images. The inspection unit detects a first foreign matter having a higher specific gravity than the article using a first threshold value and detects a second foreign matter having a lower specific gravity than the article using a second threshold value different from the first threshold value.
    Type: Application
    Filed: January 20, 2023
    Publication date: August 3, 2023
    Inventors: Ken IWAKAWA, Osamu HIROSE
  • Patent number: 10350645
    Abstract: An article rejecting system includes: a conveyance unit that conveys an article along a conveying direction; a detection unit that detects the article which is conveyed by the conveyance unit; a rejecting unit that is provided on a downstream side of the detection unit in the conveying direction and performs a rejecting motion for rejecting the article which is conveyed by the conveyance unit; a control unit that controls the rejecting unit such that the rejecting motion is performed at a predetermined automatic timing when the detection unit detects the article; and an input unit that accepts input of a manual operation for causing the rejecting unit to perform the rejecting motion at a manual timing. The control unit sets the automatic timing based on the manual timing, if the input unit accepts the input of the manual operation when the detection unit detects the article.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: July 16, 2019
    Assignee: ISHIDA CO., LTD.
    Inventors: Shoji Suda, Emi Mizuno, Ken Iwakawa, Kohei Hayashida, Yuzuru Yamada
  • Patent number: 10126162
    Abstract: A weighing device includes: a weighing cell which weighs an article and outputs an original signal corresponding to the weight of the weighed article; a filter unit which performs a filtering process on the original signal output from the weighing cell; a controller which makes a waveform of a weighing signal subjected to the filtering process be displayed on a touch panel; and a storage unit which stores at least one of the original signal and the weighing signal, wherein the controller predicts and generates the waveforms of a plurality of weighing signals in a case of performing a plurality of filtering processes having different characteristics on the original signal or the weighing signal stored in the storage unit, and makes the waveforms of the plurality of weighing signals be displayed on the touch panel.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: November 13, 2018
    Assignee: Ishida Co., Ltd.
    Inventors: Toshiyuki Chiba, Emi Mizuno, Ken Iwakawa
  • Publication number: 20180250715
    Abstract: An article rejecting system includes: a conveyance unit that conveys an article along a conveying direction; a detection unit that detects the article which is conveyed by the conveyance unit; a rejecting unit that is provided on a downstream side of the detection unit in the conveying direction and performs a rejecting motion for rejecting the article which is conveyed by the conveyance unit; a control unit that controls the rejecting unit such that the rejecting motion is performed at a predetermined automatic timing when the detection unit detects the article; and an input unit that accepts input of a manual operation for causing the rejecting unit to perform the rejecting motion at a manual timing. The control unit sets the automatic timing based on the manual timing, if the input unit accepts the input of the manual operation when the detection unit detects the article.
    Type: Application
    Filed: February 23, 2018
    Publication date: September 6, 2018
    Inventors: Shoji SUDA, Emi MIZUNO, Ken IWAKAWA, Kohei HAYASHIDA, Yuzuru YAMADA
  • Publication number: 20170131137
    Abstract: A weighing device includes: a weighing cell which weighs an article and outputs an original signal corresponding to the weight of the weighed article; a filter unit which performs a filtering process on the original signal output from the weighing cell; a controller which makes a waveform of a weighing signal subjected to the filtering process be displayed on a touch panel; and a storage unit which stores at least one of the original signal and the weighing signal, wherein the controller predicts and generates the waveforms of a plurality of weighing signals in a case of performing a plurality of filtering processes having different characteristics on the original signal or the weighing signal stored in the storage unit, and makes the waveforms of the plurality of weighing signals be displayed on the touch panel.
    Type: Application
    Filed: March 17, 2015
    Publication date: May 11, 2017
    Applicant: ISHIDA Co., Ltd.
    Inventors: Toshiyuki CHIBA, Emi MIZUNO, Ken IWAKAWA