Patents by Inventor Hirohito KUBOTA

Hirohito KUBOTA 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).

  • Ink-jet printer
    Patent number: 9586412
    Abstract: A head holder has an opening through which a space between the head holder and a conveyer communicates with an inside of the head holder. A head cooler includes a blower configured to blow air into the head holder from an outside of the head holder with a flow rate of blow air and a suction unit configured to suction air from the head holder with a flow rate of suction air. The head cooler generates cooling air for cooling an ink-jet head inside the head holder by the blower and the suction unit. A controller controls the flow rate of blow air and the flow rate of suction air such that air containing ink mist is suctioned into the head holder through the opening.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: March 7, 2017
    Assignee: RISO KAGAKU CORPORATION
    Inventors: Shinichiro Otsuka, Hirohito Kubota
  • INK-JET PRINTER
    Publication number: 20160243857
    Abstract: A head holder has an opening through which a space between the head holder and a conveyer communicates with an inside of the head holder. A head cooler includes a blower configured to blow air into the head holder from an outside of the head holder with a flow rate of blow air and a suction unit configured to suction air from the head holder with a flow rate of suction air. The head cooler generates cooling air for cooling an ink-jet head inside the head holder by the blower and the suction unit. A controller controls the flow rate of blow air and the flow rate of suction air such that air containing ink mist is suctioned into the head holder through the opening.
    Type: Application
    Filed: February 10, 2016
    Publication date: August 25, 2016
    Applicant: RISO KAGAKU CORPORATION
    Inventors: Shinichiro OTSUKA, Hirohito KUBOTA
  • Ink-jet printer
    Patent number: RE48686
    Abstract: A head holder has an opening through which a space between the head holder and a conveyer communicates with an inside of the head holder. Ahead cooler includes a blower configured to blow air into the head holder from an outside of the head holder with a flow rate of blow air and a suction unit configured to suction air from the head holder with a flow rate of suction air. The head cooler generates cooling air for cooling an ink-jet head inside the head holder by the blower and the suction unit. A controller controls the flow rate of blow air and the flow rate of suction air such that air containing ink mist is suctioned into the head holder through the opening.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: August 17, 2021
    Assignee: RISO KAGAKU CORPORATION
    Inventors: Shinichiro Otsuka, Hirohito Kubota