Patents by Inventor Etsuo ISHII

Etsuo ISHII 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).

  • Ultrafine bubble manufacturing unit and ultrafine bubble water manufacturing device
    Patent number: 11980850
    Abstract: An ultrafine bubble water manufacturing device includes a whirlpool pump, an ejector, a cascade pump, a branch portion on the downstream side of the cascade pump, a return path which communicates from the branch portion between the ejector and the cascade pump, a flow rate adjusting valve and a first ultrafine bubble manufacturing unit interposed in the return path, an emission path which communicates with the branch portion, a second ultrafine bubble manufacturing unit interposed in the emission path and a control device. The control device controls an air amount adjusting valve, the whirlpool pump, the cascade pump and the flow rate adjusting valve based on the measurement values of a concentration meter for the emission path and first and second pressure gauges and on the downstream and upstream sides of the cascade pump.
    Type: Grant
    Filed: December 25, 2019
    Date of Patent: May 14, 2024
    Assignee: MIIKE TEKKOU KABUSHIKIGAISHA
    Inventors: Yoshikazu Kobayashi, Hidemasa Kobayashi, Masahide Hayashi, Koji Fujiwara, Etsuo Ishii
  • ULTRAFINE BUBBLE MANUFACTURING UNIT AND ULTRAFINE BUBBLE WATER MANUFACTURING DEVICE
    Publication number: 20220072486
    Abstract: An ultrafine bubble water manufacturing device includes a whirlpool pump, an ejector, a cascade pump, a branch portion on the downstream side of the cascade pump, a return path which communicates from the branch portion between the ejector and the cascade pump, a flow rate adjusting valve and a first ultrafine bubble manufacturing unit interposed in the return path, an emission path which communicates with the branch portion, a second ultrafine bubble manufacturing unit interposed in the emission path and a control device. The control device controls an air amount adjusting valve, the whirlpool pump, the cascade pump and the flow rate adjusting valve based on the measurement values of a concentration meter for the emission path and first and second pressure gauges and on the downstream and upstream sides of the cascade pump.
    Type: Application
    Filed: December 25, 2019
    Publication date: March 10, 2022
    Applicant: MIIKE TEKKOU KABUSHIKIGAISHA
    Inventors: Yoshikazu KOBAYASHI, Hidemasa KOBAYASHI, Masahide HAYASHI, Koji FUJIWARA, Etsuo ISHII