Patents by Inventor Yutaka Kasai

Yutaka Kasai 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: 12147374
    Abstract: A distributed control system includes a tree topology network or a daisy-chain network including a communication parent station, communication child stations, and a plurality of communication paths among the communication parent station and the communication child stations, in which the communication parent station and the communication child stations include a scheduling unit that controls a transfer cycle that is temporal intervals of data transfer. The scheduling unit sets the transfer cycle that is the fastest out of a plurality of the data as a reference cycle, counts the number of times each time the reference cycle elapses, and imparts a value of the number of times to the reference cycle as a cycle number. When the cycle number reaches an optional number, the number of times is returned to an initial value, which makes one cycle of transfer control, and the transfer control is repeatedly executed.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: November 19, 2024
    Assignee: Hitachi High-Tech Corporation
    Inventors: Kazushi Yamashina, Takashi Saegusa, Yoshiro Gunji, Tetsuji Ohsawa, Yutaka Kasai, Junichi Kitamura, Naoya Ishigaki, Shusaku Maeda, Yoshikuni Yokose
  • Publication number: 20230315673
    Abstract: A distributed control system includes a tree topology network or a daisy-chain network including a communication parent station, communication child stations, and a plurality of communication paths among the communication parent station and the communication child stations, in which the communication parent station and the communication child stations include a scheduling unit that controls a transfer cycle that is temporal intervals of data transfer. The scheduling unit sets the transfer cycle that is the fastest out of a plurality of the data as a reference cycle, counts the number of times each time the reference cycle elapses, and imparts a value of the number of times to the reference cycle as a cycle number. When the cycle number reaches an optional number, the number of times is returned to an initial value, which makes one cycle of transfer control, and the transfer control is repeatedly executed.
    Type: Application
    Filed: June 11, 2020
    Publication date: October 5, 2023
    Applicant: Hitachi High-Tech Corporation
    Inventors: Kazushi YAMASHINA, Takashi SAEGUSA, Yoshiro GUNJI, Tetsuji OHSAWA, Yutaka KASAI, Junichi KITAMURA, Naoya ISHIGAKI, Shusaku MAEDA, Yoshikuni YOKOSE
  • Patent number: 11343119
    Abstract: In the present invention, device information is collected while real-time performance and high-speed performance of control-related normal communication are maintained. The distributed control system has: a central processing device; a central communication device; multiple terminal communication devices each having at least one controlled device connected thereto; an information storage device; and a network having a tree structure comprising multiple communication paths between the central communication device and the terminal communication devices, between the terminal communication devices, and between the terminal communication devices and the information storage device.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: May 24, 2022
    Assignee: Hitachi High-Tech Corporation
    Inventors: Kazushi Yamashina, Terunobu Funatsu, Takashi Saegusa, Masahiro Ohashi, Yoshiro Gunji, Yuuichi Hagino, Yutaka Kasai, Tsukasa Sugawara, Junichi Kitamura
  • Publication number: 20210111924
    Abstract: In the present invention, device information is collected while real-time performance and high-speed performance of control-related normal communication are maintained. The distributed control system has: a central processing device; a central communication device; multiple terminal communication devices each having at least one controlled device connected thereto; an information storage device; and a network having a tree structure comprising multiple communication paths between the central communication device and the terminal communication devices, between the terminal communication devices, and between the terminal communication devices and the information storage device.
    Type: Application
    Filed: January 15, 2019
    Publication date: April 15, 2021
    Inventors: Kazushi YAMASHINA, Terunobu FUNATSU, Takashi SAEGUSA, Masahiro OHASHI, Yoshiro GUNJI, Yuuichi HAGINO, Yutaka KASAI, Tsukasa SUGAWARA, Junichi KITAMURA
  • Patent number: 10168208
    Abstract: A signal detected by a photomultiplier tube is pre-amplified and converted into a digital signal. A time average value of signal components, each of which has a voltage lower than a predetermined base threshold value, is calculated as a base voltage. A signal that has been subjected to base correction processing is subjected to threshold value processing and to base correction processing in a non-incident state in which light is not incident on the photomultiplier tube. An output signal thereof is subjected to dark current calculation processing; and a light emission signal amount is calculated by subtracting, from the signal component of the detection light obtained by the threshold value processing, a time average value of the signal components of the dark current. As the result, discriminating the dark current pulse from floor noises enhances the accuracy of the base voltage, and thus the accuracy of light detection.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: January 1, 2019
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Yutaka Kasai, Fujio Onishi, Osamu Tasaki, Hidetsugu Tanoue, Kazuhiro Tanaka
  • Publication number: 20180066986
    Abstract: A signal detected by a photomultiplier tube is pre-amplified and converted into a digital signal. A time average value of signal components, each of which has a voltage lower than a predetermined base threshold value, is calculated as a base voltage. A signal that has been subjected to base correction processing is subjected to threshold value processing and to base correction processing in a non-incident state in which light is not incident on the photomultiplier tube. An output signal thereof is subjected to dark current calculation processing; and a light emission signal amount is calculated by subtracting, from the signal component of the detection light obtained by the threshold value processing, a time average value of the signal components of the dark current. As the result, discriminating the dark current pulse from floor noises enhances the accuracy of the base voltage, and thus the accuracy of light detection.
    Type: Application
    Filed: March 16, 2016
    Publication date: March 8, 2018
    Inventors: Yutaka KASAI, Fujio ONISHI, Osamu TASAKI, Hidetsugu TANOUE, Kazuhiro TANAKA
  • Patent number: 4417827
    Abstract: A stick-type cosmetic applicator comprising: a solid cosmetic; a housing sleeve for said solid cosmetic; a sliding sleeve which has a solid cosmetic holder at the top thereof which holder moves along the inner surface of said housing sleeve; a driving sleeve which has at least a continued spiral groove on the inner surface thereof; a guide sleeve which is installed into said driving sleeve and has at least one longitudinal slot for guiding a pin which is provided on said sliding sleeve and engages with said spiral groove through said slot; an intermediate sleeve which is installed onto the outer side of the lower portion of said housing sleeve and receives a cap, and; an outer sleeve installed onto the outer side of the lower portion of said intermediate sleeve. Said guide sleeve and said driving sleeve are disposed below said housing sleeve.
    Type: Grant
    Filed: May 11, 1981
    Date of Patent: November 29, 1983
    Assignee: Shiseido Company, Ltd.
    Inventors: Yutaka Kasai, Satoru Naramoto