Patents by Inventor Fumio Maruhashi

Fumio Maruhashi 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: 5943662
    Abstract: A method and a system for causing a neural circuit model to learn typical past control results of a process and using the neural circuit model for supporting an operation of the process. The neural circuit model is caused to learn by using, as input signals, a typical pattern of values of input variables at different points in time and, as a teacher signal, its corresponding values of the control variable. An unlearned pattern of input variables is inputted to the thus-learned neuron circuit model, whereby a corresponding value of the control variable is determined. Preferably, plural patterns at given time intervals can be simultaneously used as patterns to be learned.
    Type: Grant
    Filed: March 31, 1994
    Date of Patent: August 24, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Kenji Baba, Ichiro Enbutsu, Shoji Watanabe, Hayao Yahagi, Fumio Maruhashi, Harumi Matsuzaki, Hiroshi Matsumoto, Shunsuke Nogita, Mikio Yoda, Naoki Hara
  • Patent number: 5845052
    Abstract: A method for causing a neural circuit model to learn typical past control results of a process and using the neural circuit model for supporting an operation of the process. The neural circuit model is caused to learn by using, as input signals, a typical pattern of values of input variables at different points in time and, as a teacher signal, its corresponding values of the control variable. An unlearned pattern of input variables is inputted to the thus-learned neuron circuit model, whereby a corresponding value of the control variable is determined. Preferably, plural patterns at given time intervals can be simultaneously used as patterns to be learned.
    Type: Grant
    Filed: January 2, 1996
    Date of Patent: December 1, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Kenji Baba, Ichiro Enbutsu, Shoji Watanabe, Hayao Yahagi, Fumio Maruhashi, Harumi Matsuzaki, Hiroshi Matsumoto, Shunsuke Nogita, Mikio Yoda, Naoki Hara
  • Patent number: 5774633
    Abstract: A method and a system for causing a neural circuit model to learn typical past control results of a process and using the neural circuit model for supporting an operation of the process. The neural circuit model is caused to learn by using, as input signals, a typical pattern of values of input variables at different points in time and, as a teacher signal, its corresponding values of the control variable. An unlearned pattern of input variables is inputted to the thus-learned neuron circuit model, whereby a corresponding value of the control variable is determined. Preferably, plural patterns at given time intervals can be simultaneously used as patterns to be learned.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: June 30, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Kenji Baba, Ichiro Enbutsu, Shoji Watanabe, Hayao Yahagi, Fumio Maruhashi, Harumi Matsuzaki, Hiroshi Matsumoto, Shunsuke Nogita, Mikio Yoda, Naoki Hara
  • Patent number: 5403735
    Abstract: In order to investigate an object, such as a culture of micro-organisms, the object is repeatedly captured at two different magnifications by a suitable image pick-up device. The images at the two different magnifications are then analysed by a suitable picture image recognition device and the results of the repeated analysis are compared, thereby to derive a measurement of the change in the object with time. Thus, for a culture of micro-organisms, the number of cells can be determined at one magnification and the number of microscopic spherical bodies can be determined at another magnification, to obtain a measure of the activity of the culture. Preferably, one or more conditions of the object are then controlled on the basis of the measurement of change.
    Type: Grant
    Filed: July 24, 1991
    Date of Patent: April 4, 1995
    Assignee: Hitachi, Ltd.
    Inventors: Fumio Maruhashi, Nobuko Nishimura, Ryoichi Haga, Harumi Matsuzaki, Ryusei Nakano
  • Patent number: 5162204
    Abstract: An apparatus for culturing animal cells, includes a diagnosis system to make it possible to diagnose by measuring sizes of the cells by means of image processing while a system of culturing the animal cells is cut off from the outside of the apparatus system, a control system to control the culture conditions of a culturing cistern on the basis of a result of the diagnosis, and a culture medium regenerating system to remove waste contents in a culture medium. In the apparatus of this invention, the culture system and diagnosis system are cut off from the outside of the apparatus system. Therefore, no infection of miscellaneous microorganism, etc., occurs, nor does consumption of valuable cells and products occur. Further, since it is possible to easily obtain data of the proportions of division potential-possessing cells and living cells, the environmental factors to the culturing cistern can be easily and instantly controlled based on the data, and therefore, the culturing efficiency can be enhanced.
    Type: Grant
    Filed: May 4, 1989
    Date of Patent: November 10, 1992
    Assignee: Hitachi, Ltd.
    Inventors: Harumi Matsuzaki, Ryoichi Haga, Yuusaku Nishimura, Kenji Baba, Fumio Maruhashi, Nobuko Nishimura, Masahiko Ishida, Setuo Saitoh