Patents by Inventor Michihisa Kumamoto

Michihisa Kumamoto 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).

  • Printing mechanism with a cam and groove arrangement
    Patent number: 5087136
    Abstract: A printing mechanism for printing on a recording medium includes a cam mechanism for moving an ink ribbon to an effecting position to act on the recording medium and an initial position for not acting on the recording medium. The cam mechanism includes a cam plate and a cam tracing pin guided in a cam groove within the cam plate, with the cam tracing pin traveling several courses in the cam groove. A driving device imparts rotary motion to the cam mechanism in two directions about a rotary axis and the cam tracing pin is guided in several stages of rotary motion.
    Type: Grant
    Filed: June 27, 1991
    Date of Patent: February 11, 1992
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroharu Nakajima, Naohisa Suzuki, Michihisa Kumamoto
  • Ink sheet drive system for a recording device
    Patent number: 5048988
    Abstract: A recording apparatus for recording onto a recording medium and capable of correcting an erroneous recording includes an ink sheet mounting section on which an ink sheet for effecting the recording medium is mountable, a device for effecting the ink sheet to the recording medium, and a motor for driving the ink sheet. By a driving force produced by one directional rotation of the motor, the recording ink sheet is moved between an effecting position where the recording ink sheet is effected by the effecting device and a retracted position where the recording ink sheet retracts from the effecting position. Also, by a driving force produced by the motor, the correcting ink sheet is moved between an effecting position wherein the correcting ink sheet is effected by the effecting device and a retracted position where the correcting ink sheet retracts from the effecting position.
    Type: Grant
    Filed: January 2, 1991
    Date of Patent: September 17, 1991
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroharu Nakajima, Naohisa Suzuki, Michihisa Kumamoto
  • Printer with erasing ribbon control function
    Patent number: 4773774
    Abstract: Disclosed is a printer having a correction ribbon tape for correcting printed characters. A plurality of characters printed in the same print position can be corrected in one step of feed of the correction ribbon tape.
    Type: Grant
    Filed: April 2, 1987
    Date of Patent: September 27, 1988
    Assignee: Canon Kabushiki Kaisha
    Inventors: Michihisa Kumamoto, Hiroyuki Ueda
  • Printing apparatus having a memory for storing composite and printed character information for subsequent erasure
    Patent number: 4728209
    Abstract: A printer has a memory for storing character information on printed characters; character information on a composite character consisting of at least two characters is stored in the memory to simplify the correction operation. Print form/print pitch information which is common to a plurality of characters is stored in a common area of the memory to improve the efficiency of usage of the memory.
    Type: Grant
    Filed: March 23, 1987
    Date of Patent: March 1, 1988
    Assignee: Canon Kabushiki Kaisha
    Inventors: Michihisa Kumamoto, Hiroyuki Ueda