Patents by Inventor Yuzo Obata

Yuzo Obata 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).

  • Liquid discharge apparatus
    Patent number: 11633958
    Abstract: A liquid discharge apparatus includes a body and a carriage disposed inside the body. A head is mounted on the carriage. The head discharges ink onto a recording medium and generates ink mist. An ink mist collector includes a fan that generates an air current that circulates in an air flow direction inside the body. A filter collects the ink mist generated by the head. At least one duct adjusts the air flow direction. An encoder is mounted on the carriage. The encoder is disposed downstream from the fan and disposed upstream from the head in the air flow direction.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: April 25, 2023
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tsuguyori Kemma, Kazuyoshi Matsumoto, Satoshi Ueno, Yuzo Obata, Kazuyoshi Kondo
  • LIQUID DISCHARGE APPARATUS
    Publication number: 20210237467
    Abstract: A liquid discharge apparatus includes a body and a carriage disposed inside the body. A head is mounted on the carriage. The head discharges ink onto a recording medium and generates ink mist. An ink mist collector includes a fan that generates an air current that circulates in an air flow direction inside the body. A filter collects the ink mist generated by the head. At least one duct adjusts the air flow direction. An encoder is mounted on the carriage. The encoder is disposed downstream from the fan and disposed upstream from the head in the air flow direction.
    Type: Application
    Filed: January 25, 2021
    Publication date: August 5, 2021
    Inventors: Tsuguyori KEMMA, Kazuyoshi MATSUMOTO, Satoshi UENO, Yuzo OBATA, Kazuyoshi KONDO
  • Image forming apparatus
    Patent number: 8523337
    Abstract: An image forming apparatus, includes a liquid jet head; a container main body; an air opening mechanism configured to open and close an air opening path in the container main body. The air opening mechanism includes a holding part, and an opening member movably provided at the holding part. The opening member includes an air communicating path, a filter member, and an air room. An opening cross-sectional area of the air room in a direction perpendicular to an air flow-in direction is greater than an opening cross-sectional area of the air communicating path in a direction perpendicular to an air flow-in direction.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: September 3, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Kiyoshi Tsukamura, Kenji Hiratani, Makoto Kikura, Yuzo Obata, Daisuke Nakamura
  • IMAGE FORMING APPARATUS
    Publication number: 20130155158
    Abstract: An image forming apparatus, includes a liquid jet head; a container main body; an air opening mechanism configured to open and close an air opening path in the container main body. The air opening mechanism includes a holding part, and an opening member movably provided at the holding part. The opening member includes an air communicating path, a filter member, and an air room. An opening cross-sectional area of the air room in a direction perpendicular to an air flow-in direction is greater than an opening cross-sectional area of the air communicating path in a direction perpendicular to an air flow-in direction.
    Type: Application
    Filed: February 11, 2013
    Publication date: June 20, 2013
    Applicant: RICOH COMPANY, LTD
    Inventors: Kiyoshi Tsukamura, Kenji Hiratani, Makoto Kikura, Yuzo Obata, Daisuke Nakamura
  • Image forming apparatus
    Patent number: 8398218
    Abstract: An image forming apparatus, includes a liquid jet head; a container main body; an air opening mechanism configured to open and close an air opening path in the container main body. The air opening mechanism includes a holding part, and an opening member movably provided at the holding part. The opening member includes an air communicating path, a filter member, and an air room. An opening cross-sectional area of the air room in a direction perpendicular to an air flow-in direction is greater than an opening cross-sectional area of the air communicating path in a direction perpendicular to an air flow-in direction.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: March 19, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Kiyoshi Tsukamura, Kenji Hiratani, Makoto Kikura, Yuzo Obata, Daisuke Nakamura
  • IMAGE FORMING APPARATUS
    Publication number: 20110141209
    Abstract: An image forming apparatus, includes a liquid jet head; a container main body; an air opening mechanism configured to open and close an air opening path in the container main body. The air opening mechanism includes a holding part, and an opening member movably provided at the holding part. The opening member includes an air communicating path, a filter member, and an air room. An opening cross-sectional area of the air room in a direction perpendicular to an air flow-in direction is greater than an opening cross-sectional area of the air communicating path in a direction perpendicular to an air flow-in direction.
    Type: Application
    Filed: August 20, 2009
    Publication date: June 16, 2011
    Applicant: RICOH COMPANY, LTD.
    Inventors: Kiyoshi Tsukamura, Kenji Hiratani, Makoto Kikura, Yuzo Obata, Daisuke Nakamura