Patents by Inventor Hiroshi Tsubota

Hiroshi Tsubota 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).

  • Coriolis mass flow meter having external vibration isolation member
    Patent number: 8365613
    Abstract: For reducing an influence due to an external vibration, a frame has: a main frame that supports a vibration tube in a cantilever state; and a subframe that extends from the main frame toward a measurement portion side of the vibration tube, a detector and a vibration exciter are arranged on this subframe, and the outer case that surrounds the frame, the vibration tube and the like is engaged with the frame through the vibration isolating member.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: February 5, 2013
    Assignee: Keyence Corporation
    Inventors: Hiroshi Tsubota, Katsunari Koyama
  • Coriolis Mass Flow Meter
    Publication number: 20110000315
    Abstract: For reducing an influence due to an external vibration, a frame has: a main frame that supports a vibration tube in a cantilever state; and a subframe that extends from the main frame toward a measurement portion side of the vibration tube, a detector and a vibration exciter are arranged on this subframe, and the outer case that surrounds the frame, the vibration tube and the like is engaged with the frame through the vibration isolating member.
    Type: Application
    Filed: June 4, 2010
    Publication date: January 6, 2011
    Applicant: KEYENCE CORPORATION
    Inventors: Hiroshi Tsubota, Katsunari Koyama
  • Indium adsorbent and indium fractioning method
    Patent number: 7611631
    Abstract: The invention provides an indium adsorbent that can cause indium to be adsorbed, and a simple and inexpensive indium fractioning method for isolating and recovering high-purity indium from an acid solution whose primary component is hydrochloric acid and that contains indium. A primary component of the indium adsorbent is an anion-exchange resin that has a crosslinked structure produced by the copolymerization of styrene or acrylamide and divinylbenzene, and at least one of a quaternary ammonium group and a tertiary ammonium group, and that is provided with an acid-adsorbing ability. An acid solution whose primary component is hydrochloric acid and that includes indium is brought into contact with the anion-exchange resin to cause indium to be adsorbed to the anion-exchange resin.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: November 3, 2009
    Assignees: Aquatech Corporation, Sharp Kabushiki Kaisha
    Inventors: Akifusai Ohnishi, Nobuaki Fujiwara, Hideki Doi, Toyokazu Matsunami, Hiroshi Tsubota, Toshiaki Muratani, Shoji Nishikawa, Shinichi Yamasaki, Takamichi Honma
  • Indium Adsorbent and Indium Fractioning Method
    Publication number: 20080038188
    Abstract: The invention provides an indium adsorbent that can cause indium to be adsorbed, and a simple and inexpensive indium fractioning method for isolating and recovering high-purity indium from an acid solution whose primary component is hydrochloric acid and that contains indium. A primary component of the indium adsorbent is an anion-exchange resin that has a crosslinked structure produced by the copolymerization of styrene or acrylamide and divinylbenzene, and at least one of a quaternary ammonium group and a tertiary ammonium group, and that is provided with an acid-adsorbing ability. An acid solution whose primary component is hydrochloric acid and that includes indium is brought into contact with the anion-exchange resin to cause indium to be adsorbed to the anion-exchange resin.
    Type: Application
    Filed: July 7, 2005
    Publication date: February 14, 2008
    Applicants: AQUATECH CORPORATION, SHARP KABUSHIKI KAISHA
    Inventors: Akifusai Ohnishi, Nobuaki Fujiwara, Hideki Doi, Toyokazu Matsunami, Hiroshi Tsubota, Toshiaki Muratani, Shoji Nishikawa, Shinichi Yamasaki, Takamichi Honma