Patents by Inventor Kazuyoshi Anzai

Kazuyoshi Anzai 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).

  • Sorting apparatus utilizing transmitted light
    Patent number: 5190163
    Abstract: A sorting apparatus is disclosed which utilizes transmitted light to determine whether or not an article under inspection is defective in order to reject any article determined to be defective. A light irradiator is provided on irradiating an article being inspected with a light beam having a smaller diameter than that of an article, and a light condenser is provided for condensing the rays of light transmitted through the article while being diffused. Two light detectors respectively detect two specific kinds of light having different wavelengths from among the condensed rays of light transmitted through the article. A ratio is obtained between the intensities of the two specific kinds of light detected by the light detector and compared with a predtermined ratio in order to determine whether the article under inspection has undergone deterioration in quality.
    Type: Grant
    Filed: April 22, 1992
    Date of Patent: March 2, 1993
    Assignees: Anzai Sogo Kenkyusho Co., Ltd., Morinaga & Co., Ltd.
    Inventors: Kazuyoshi Anzai, Akira Shibayama, Susumu Hirano, Hajime Sasaki