Patents by Inventor Sakayuki ISHIKAWA

Sakayuki ISHIKAWA 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: 10828694
    Abstract: A casting device in which refrigerant is pressure-fed to a cooling passage formed in a die, leakage of refrigerant in the die can be reliably detected in a short time without a significant modification applied to the conventional device. A casting device includes a pressure-feed device that pressure-feeds refrigerant to a cooling passage formed in a die, and a release agent coating applicator that applies a release agent to the die, and further includes a unit that mixes a fluorescent agent into the refrigerant (fluorescent agent tank), a unit that irradiates the die surface of the die with black light while the refrigerant containing the fluorescent agent mixed therein is pressure-fed to the die, and an imaging device that captures an image of the die surface. The imaging device is integrally assembled with the release agent coating applicator.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: November 10, 2020
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, MEC INTERNATIONAL CO., LTD., MEIWA E-TEC CO., LTD., NIKON CORPORATION
    Inventors: Daisuke Serino, Fumio Kawahara, Yuzo Matsuda, Tetsushi Yamaguchi, Hiroshi Kawahara, Sakayuki Ishikawa, Takuto Takahashi, Naoshi Sakaguchi, Hiroyuki Kayaba, Takahiro Michimoto
  • Publication number: 20200047338
    Abstract: An abnormality monitoring method capable of reliably detecting abnormality or an initiation of an abnormality of a monitored object includes: acquiring time series monitored data from a monitored object; calculating a wavelet transformed image from the monitored data; calculating a feature value at each point in the wavelet transformed image; and determining a presence or an absence of an abnormality of the monitored object based on the feature value. The feature value is a moment from a predetermined origin on a wavelet transformed image, and the presence or the absence of the abnormality of the monitored object is determined based on a Mahalanobis' Distance calculated from the feature value.
    Type: Application
    Filed: August 8, 2018
    Publication date: February 13, 2020
    Inventors: Hiroomi YAMADA, Hirokazu KIDA, Sakayuki ISHIKAWA
  • Publication number: 20190176221
    Abstract: A casting device in which refrigerant is pressure-fed to a cooling passage formed in a die, leakage of refrigerant in the die can be reliably detected in a short time without a significant modification applied to the conventional device. A casting device includes a pressure-feed device that pressure-feeds refrigerant to a cooling passage formed in a die, and a release agent coating applicator that applies a release agent to the die, and further includes a unit that mixes a fluorescent agent into the refrigerant (fluorescent agent tank), a unit that irradiates the die surface of the die with black light while the refrigerant containing the fluorescent agent mixed therein is pressure-fed to the die, and an imaging device that captures an image of the die surface. The imaging device is integrally assembled with the release agent coating applicator.
    Type: Application
    Filed: November 18, 2016
    Publication date: June 13, 2019
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, MEC International Co., Ltd., MEIWA e-TEC CO., LTD., NIKON CORPORATION
    Inventors: Daisuke SERINO, Fumio KAWAHARA, Yuzo MATSUDA, Tetsushi YAMAGUCHI, Hiroshi KAWAHARA, Sakayuki ISHIKAWA, Takuto TAKAHASHI, Naoshi SAKAGUCHI, Hiroyuki KAYABA, Takahiro MICHIMOTO