Patents by Inventor Hidetaka Ujike

Hidetaka Ujike 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).

  • Filter medium, filtering device using filter medium, and filter medium manufacturing method
    Patent number: 10252192
    Abstract: A filter medium includes: a core yarn and a binder yarn twisted together, at least one of the core yarn or the binder yarn being weldable; and a filament yarn being fuzzy and weldable, the filament yarn being welded to at least one of the core yarn or the binder yarn while being placed between the core yarn and the binder yarn as twisted together. A filtering device for filtering a liquid to be treated with a filter medium layer includes the filter medium. A method of manufacturing the filter medium is also disclosed.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: April 9, 2019
    Assignee: ISHIGAKI COMPANY LIMITED
    Inventors: Kunio Fujita, Hidetaka Ujike, Takahiko Ishimaru, Fumikatsu Nagai
  • Filter medium layer and filter device provided with same
    Patent number: 9718004
    Abstract: A filter medium layer includes filter media configured to capture suspended solids contained in a liquid to be treated and filtering aids configured to allow the suspended solids contained in the liquid to be treated to pass through the filtering aids. The filter media and the filtering aids are mixed together and the liquid to be treated is filtered by being passed through the filter media and the filtering aids as mixed together. A filter device includes the filter medium layer and a filter tank configured to accommodate the filter medium layer.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: August 1, 2017
    Assignee: ISHIGAKI COMPANY LIMITED
    Inventors: Kunio Fujita, Hidetaka Ujike
  • INDEFINITE FORM FILTER MEDIUM LAYER AND FILTER DEVICE PROVIDED WITH SAME
    Publication number: 20140291224
    Abstract: An indefinite form filter medium layer includes filter media configured to capture suspended solids contained in a liquid to be treated and filtering aids configured to allow the suspended solids contained in the liquid to be treated to pass through the filtering aids. The filter media and the filtering aids are mixed together and the liquid to be treated is filtered by being passed through the filter media and the filtering aids as mixed together. A filter device includes the indefinite form filter medium layer and a filter tank configured to accommodate the indefinite form filter medium layer.
    Type: Application
    Filed: September 21, 2012
    Publication date: October 2, 2014
    Applicant: ISHIGAKI COMPANY LIMITED
    Inventors: Kunio Fujita, Hidetaka Ujike
  • FILTER MEDIUM, FILTERING DEVICE USING FILTER MEDIUM, AND FILTER MEDIUM MANUFACTURING METHOD
    Publication number: 20130248439
    Abstract: A filter medium includes: a core yarn and a binder yarn twisted together, at least one of the core yarn or the binder yarn being weldable; and a filament yarn being fuzzy and weldable, the filament yarn being welded to at least one of the core yarn or the binder yarn while being placed between the core yarn and the binder yarn as twisted together. A filtering device for filtering a liquid to be treated with a filter medium layer including includes the filter medium. A method of manufacturing the filter medium is also disclosed.
    Type: Application
    Filed: October 6, 2011
    Publication date: September 26, 2013
    Applicant: ISHIGAKI COMPANY LIMITED
    Inventors: Kunio Fujita, Hidetaka Ujike, Takahiko Ishimaru, Fumikatsu Nagai