Patents by Inventor Minoru Oka

Minoru Oka 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).

  • Ink composition for sensing carbon dioxside gas, carbon dioxside indicator using the same, package provided with the carbon dioxside indicator, and method for sensing pinhole using the same
    Publication number: 20030199095
    Abstract: An ink composition for sensing carbon dioxide gas contains a pH indicator formed using a combination of two or more types of pH indicator components, binder, and solvent and allows easy visual observation of color changes of an indicating portion caused by the concentration of carbon dioxide gas. When the ink composition is applied to a carbon dioxide indicator and package, a pinhole and poor seal of a carbon-dioxide-ambient package are easily found.
    Type: Application
    Filed: June 14, 2002
    Publication date: October 23, 2003
    Inventors: Kohei Yuyama, Minoru Oka, Hiroshi Honda, Shin Hamazaki, Shinya Ochiai, Noe Obinata, Hiroyuki Mizuma
  • Ink composition for sensing carbon dioxide gas, and carbon dioxide indicator using the same, and package provided with the carbon dioxide indicator
    Publication number: 20030045608
    Abstract: An ink composition for sensing carbon dioxide gas contains a pH indicator, binder, and solvent and allows easy visual observation of color changes of an indicating portion caused by the concentration of carbon dioxide gas. When this ink composition is applied to a carbon dioxide indicator and package, a pinhole and poor seal of a gas-replaced package sealing a replacement gas which contains carbon dioxide gas are easily found.
    Type: Application
    Filed: May 22, 2002
    Publication date: March 6, 2003
    Applicant: Toppan Printing Co., Ltd.
    Inventors: Shinya Ochiai, Noe Obinata, Hiroyuki Mizuma, Minoru Oka, Hiroshi Honda, Shin Hamazaki
  • Touch panel input device
    Patent number: 4882582
    Abstract: A transparent touch panel mounted on the screen of a display CRT of an automatic transaction device used for banking business detects push down of one of keys displayed on the screen. Among a number of keys displaying an operation manual and numbers, those which are to be pushed down by an operator are displayed with an emphasis so that the operator can recognize them easily.
    Type: Grant
    Filed: November 16, 1987
    Date of Patent: November 21, 1989
    Assignee: Hitachi, Ltd.
    Inventor: Minoru Oka