Patents by Inventor Yutaka Ohtsubo

Yutaka Ohtsubo 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).

  • Fuzzy controller for selecting an input signal
    Patent number: 5367610
    Abstract: In a fuzzy controller comprising a fuzzy inference device for subjecting one or a plurality of input signals to fuzzy inference operations using membership functions in accordance with a predetermined rule and outputting a non-fuzzy value determined on the basis of the results of the inferences, there are provided an input signal level converter for converting signal levels of the input signals on the input side of the fuzzy inference device and an output signal level converter for converting a signal level of the output signal on the output side of the fuzzy inference device.
    Type: Grant
    Filed: September 26, 1989
    Date of Patent: November 22, 1994
    Assignee: Omron Tateisi Electronics Co.
    Inventors: Yutaka Ohtsubo, Kazuaki Urasaki, Yoshiro Tasaka, Atushi Hisano
  • Fuzzy system
    Patent number: 5193144
    Abstract: A membership function unit includes a membership function setting section for adjusting positions or shapes of membership functions depending on inputs of elements influencing human senses so as to set the membership functions and a membership value computing section for computing membership function values associated with input variables in the membership functions attained by the membership function setting section.
    Type: Grant
    Filed: December 12, 1989
    Date of Patent: March 9, 1993
    Assignee: Shimano, Inc.
    Inventors: Yasuhiro Tsutsumi, Yutaka Ohtsubo
  • Fuzzy system, fuzzy control system development support apparatus, and method of developing a fuzzy control system
    Patent number: RE38754
    Abstract: A membership function unit includes a membership function setting section for adjusting positions or shapes of membership functions depending on inputs of elements influencing human senses so as to set the membership functions and a membership value computing section for computing membership function values associated with input variables in the membership functions attained by the membership function setting section. The invention also relates to a fuzzy control system development support apparatus. The invention also relates to a method of developing a fuzzy control system.
    Type: Grant
    Filed: March 8, 1995
    Date of Patent: July 5, 2005
    Assignee: Omron Corporation
    Inventor: Yutaka Ohtsubo
  • Fuzzy controller for selecting an input signal
    Patent number: RE36421
    Abstract: In a fuzzy controller comprising a fuzzy inference device for subjecting one or a plurality of input signals to fuzzy inference operations using membership functions in accordance with a predetermined rule and outputting a non-fuzzy value determined on the basis of the results of the inferences, there are provided an input signal level converter for converting signal levels of the input signals on the input side of the fuzzy inference device and an output signal level converter for converting a signal level of the output signal on the output side of the fuzzy inference device.
    Type: Grant
    Filed: November 19, 1996
    Date of Patent: November 30, 1999
    Assignee: Omron Corporation
    Inventors: Yutaka Ohtsubo, Kazuaki Urasaki, Yoshiro Tasaka, Atushi Hisano