Patents by Inventor Yoji Kawanami

Yoji Kawanami 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).

  • Particle counting apparatus
    Patent number: 10768090
    Abstract: An outside opening of each aperture of a plurality of counting chambers for performing particle counting based on the electric resistance method is connected to suction pump through a confluent piping. Liquid supplying part supplies an additional liquid to the counting chamber side after completion of counting of counting chamber, so that the liquid level of sample liquid of counting chamber will not descend to aperture or a predetermined liquid level.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: September 8, 2020
    Assignee: HORIBA, Ltd.
    Inventors: Motoaki Hamada, Kazumasa Takemoto, Yoji Kawanami
  • PARTICLE COUNTING APPARATUS
    Publication number: 20190317007
    Abstract: An outside opening of each aperture of a plurality of counting chambers for performing particle counting based on the electric resistance method is connected to suction pump through a confluent piping. Liquid supplying part supplies an additional liquid to the counting chamber side after completion of counting of counting chamber, so that the liquid level of sample liquid of counting chamber will not descend to aperture or a predetermined liquid level.
    Type: Application
    Filed: September 12, 2017
    Publication date: October 17, 2019
    Inventors: Motoaki Hamada, Kazumasa Takemoto, Yoji Kawanami