Patents by Inventor Katsumasa Tsuneyoshi

Katsumasa Tsuneyoshi 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).

  • Graphic plotting apparatus plotting diagram represented by function and graphic plotting method thereof
    Patent number: 5758035
    Abstract: A specifying unit specifies a plot range and the plot spacing of a diagram represented by a desired function input by an input unit; a correlating unit correlates the specified plot range and plot spacing of the diagram with a position on a display unit; and a plotting unit plots the diagram with arbitrarily spacing on the display unit.
    Type: Grant
    Filed: November 29, 1993
    Date of Patent: May 26, 1998
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Katsumasa Tsuneyoshi
  • Information processing apparatus having a function of displaying a plurality of graphs
    Patent number: 5557718
    Abstract: In the information processing apparatus having a function of displaying a plurality of graphs, when information on mathematical expressions for drawing a plurality of graphs and information on scales on a plurality of axes associated with the graphs is input from an input portion, a drawing data conversion portion converts the information on a plurality of expressions into graph drawing data for drawing a plurality of graphs and converts the information on scales on a plurality of axes into axes drawing data to be used for graduating axes for respective graphs. A graph drawing portion draws a plurality of graphs such that they overlap each other about a common axis based on the graph drawing data and axes drawing data obtained as a result of the conversion and draws axes having different scales for respective graphs on the same screen of a display portion.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: September 17, 1996
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Katsumasa Tsuneyoshi, Akiyoshi Satoh
  • Calculator with display of processing for mulas as processing progresses
    Patent number: 5519646
    Abstract: The invention provides a calculator wherein it is possible to start an operation on the basis of an inputted formula and successively know the progress processes of operation until an operation result is obtained. An inputted formula edited on the basis of the data inputted from a keyboard is once displayed and the calculator is placed in the state of waiting for key entry. Then, when a Enter key is pressed down, only the operator codes selected among plural operator codes in the inputted formula in accordance with the priority order of operation are processed and a process formula as the result of the processing is displayed. Thereafter, every time the Enter key is pressed down, the operation is executed in accordance with the priority order and the process formulas obtained in the respective operations are successively displayed.
    Type: Grant
    Filed: July 13, 1994
    Date of Patent: May 21, 1996
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Syuji Uemura, Yoshihiro Okuda, Syuuji Kaya, Toshiro Oba, Akiyoshi Satoh, Katsumasa Tsuneyoshi, Fumiaki Kawawaki, Takafumi Bannai