Patents by Inventor Shohei Ishida

Shohei Ishida 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).

  • Method and apparatus for testing ready-mixed concrete
    Patent number: 4615215
    Abstract: A method and an apparatus for testing the quality of ready-mixed concrete. The present invention enables the water-to-cement ratio in ready-mixed concrete to be measured quickly and precisely through the measurement of the weight and underwater weight of mortar extracted from the ready-mixed concrete whose quality is to be examined.
    Type: Grant
    Filed: March 30, 1984
    Date of Patent: October 7, 1986
    Assignees: Takenaka Komuten Co., Ltd., Shimadzu Corporation
    Inventors: Yasuhiko Sugimoto, Sadao Wada, Naoyosi Tanide, Osamu Kawabata, Tadashi Yamaguchi, Shozo Yano, Kobun Suda, Kazuo Nishibayashi, Shohei Ishida