Patents by Inventor Yoshiharu Aruga

Yoshiharu Aruga 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).

  • Patent number: 10737504
    Abstract: Provided is a liquid injecting apparatus equipped with a liquid injecting head, which is mounted on a carriage and moved reciprocally in a widthwise direction of a target, and a valve unit, which is mounted on the carriage to be supplied with liquid via a supply passage from a liquid retainer and to supply liquid to the liquid injecting head. The valve unit has a pressure chamber connected to the liquid retainer via the supply passage; a valve, which opens or closes the supply passage to supply liquid to the pressure chamber; and a flexible film member, which is displaced based on a negative pressure generated as liquid in the pressure chamber decreases to thereby operate the valve.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: August 11, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Yoshiharu Aruga, Toshio Kumagai, Hitoshi Matsumoto
  • Publication number: 20200108625
    Abstract: Provided is a liquid injecting apparatus equipped with a liquid injecting head, which is mounted on a carriage and moved reciprocally in a widthwise direction of a target, and a valve unit, which is mounted on the carriage to be supplied with liquid via a supply passage from a liquid retainer and to supply liquid to the liquid injecting head. The valve unit has a pressure chamber connected to the liquid retainer via the supply passage; a valve, which opens or closes the supply passage to supply liquid to the pressure chamber; and a flexible film member, which is displaced based on a negative pressure generated as liquid in the pressure chamber decreases to thereby operate the valve.
    Type: Application
    Filed: December 6, 2019
    Publication date: April 9, 2020
    Applicant: SEIKO EPSON CORORATION
    Inventors: Yoshiharu ARUGA, Toshio KUMAGAI, Hitoshi MATSUMOTO
  • Patent number: 10556442
    Abstract: Provided is a liquid injecting apparatus equipped with a liquid injecting head, which is mounted on a carriage and moved reciprocally in a widthwise direction of a target, and a valve unit, which is mounted on the carriage to be supplied with liquid via a supply passage from a liquid retainer and to supply liquid to the liquid injecting head. The valve unit has a pressure chamber connected to the liquid retainer via the supply passage; a valve, which opens or closes the supply passage to supply liquid to the pressure chamber; and a flexible film member, which is displaced based on a negative pressure generated as liquid in the pressure chamber decreases to thereby operate the valve.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: February 11, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Yoshiharu Aruga, Toshio Kumagai, Hitoshi Matsumoto
  • Publication number: 20190224983
    Abstract: Provided is a liquid injecting apparatus equipped with a liquid injecting head, which is mounted on a carriage and moved reciprocally in a widthwise direction of a target, and a valve unit, which is mounted on the carriage to be supplied with liquid via a supply passage from a liquid retainer and to supply liquid to the liquid injecting head. The valve unit has a pressure chamber connected to the liquid retainer via the supply passage; a valve, which opens or closes the supply passage to supply liquid to the pressure chamber; and a flexible film member, which is displaced based on a negative pressure generated as liquid in the pressure chamber decreases to thereby operate the valve.
    Type: Application
    Filed: March 29, 2019
    Publication date: July 25, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yoshiharu ARUGA, Toshio KUMAGAI, Hitoshi MATSUMOTO
  • Patent number: 10293617
    Abstract: Provided is a liquid injecting apparatus equipped with a liquid injecting head, which is mounted on a carriage and moved reciprocally in a widthwise direction of a target, and a valve unit, which is mounted on the carriage to be supplied with liquid via a supply passage from a liquid retainer and to supply liquid to the liquid injecting head. The valve unit has a pressure chamber connected to the liquid retainer via the supply passage; a valve, which opens or closes the supply passage to supply liquid to the pressure chamber; and a flexible film member, which is displaced based on a negative pressure generated as liquid in the pressure chamber decreases to thereby operate the valve.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: May 21, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Yoshiharu Aruga, Toshio Kumagai, Hitoshi Matsumoto
  • Publication number: 20180257385
    Abstract: Provided is a liquid injecting apparatus equipped with a liquid injecting head, which is mounted on a carriage and moved reciprocally in a widthwise direction of a target, and a valve unit, which is mounted on the carriage to be supplied with liquid via a supply passage from a liquid retainer and to supply liquid to the liquid injecting head. The valve unit has a pressure chamber connected to the liquid retainer via the supply passage; a valve, which opens or closes the supply passage to supply liquid to the pressure chamber; and a flexible film member, which is displaced based on a negative pressure generated as liquid in the pressure chamber decreases to thereby operate the valve.
    Type: Application
    Filed: May 15, 2018
    Publication date: September 13, 2018
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yoshiharu ARUGA, Toshio KUMAGAI, Hitoshi MATSUMOTO
  • Patent number: 10005288
    Abstract: Provided is a liquid injecting apparatus equipped with a liquid injecting head, which is mounted on a carriage and moved reciprocally in a widthwise direction of a target, and a valve unit, which is mounted on the carriage to be supplied with liquid via a supply passage from a liquid retainer and to supply liquid to the liquid injecting head. The valve unit has a pressure chamber connected to the liquid retainer via the supply passage; a valve, which opens or closes the supply passage to supply liquid to the pressure chamber; and a flexible film member, which is displaced based on a negative pressure generated as liquid in the pressure chamber decreases to thereby operate the valve.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: June 26, 2018
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Yoshiharu Aruga, Toshio Kumagai, Hitoshi Matsumoto
  • Publication number: 20170341409
    Abstract: Provided is a liquid injecting apparatus equipped with a liquid injecting head, which is mounted on a carriage and moved reciprocally in a widthwise direction of a target, and a valve unit, which is mounted on the carriage to be supplied with liquid via a supply passage from a liquid retainer and to supply liquid to the liquid injecting head. The valve unit has a pressure chamber connected to the liquid retainer via the supply passage; a valve, which opens or closes the supply passage to supply liquid to the pressure chamber; and a flexible film member, which is displaced based on a negative pressure generated as liquid in the pressure chamber decreases to thereby operate the valve.
    Type: Application
    Filed: August 15, 2017
    Publication date: November 30, 2017
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yoshiharu ARUGA, Toshio KUMAGAI, Hitoshi MATSUMOTO
  • Patent number: 9770917
    Abstract: Provided is a liquid injecting apparatus equipped with a liquid injecting head, which is mounted on a carriage and moved reciprocally in a widthwise direction of a target, and a valve unit, which is mounted on the carriage to be supplied with liquid via a supply passage from a liquid retainer and to supply liquid to the liquid injecting head. The valve unit has a pressure chamber connected to the liquid retainer via the supply passage; a valve, which opens or closes the supply passage to supply liquid to the pressure chamber; and a flexible film member, which is displaced based on a negative pressure generated as liquid in the pressure chamber decreases to thereby operate the valve.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: September 26, 2017
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Yoshiharu Aruga, Toshio Kumagai, Hitoshi Matsumoto
  • Publication number: 20170157946
    Abstract: Provided is a liquid injecting apparatus equipped with a liquid injecting head, which is mounted on a carriage and moved reciprocally in a widthwise direction of a target, and a valve unit, which is mounted on the carriage to be supplied with liquid via a supply passage from a liquid retainer and to supply liquid to the liquid injecting head. The valve unit has a pressure chamber connected to the liquid retainer via the supply passage; a valve, which opens or closes the supply passage to supply liquid to the pressure chamber; and a flexible film member, which is displaced based on a negative pressure generated as liquid in the pressure chamber decreases to thereby operate the valve.
    Type: Application
    Filed: February 17, 2017
    Publication date: June 8, 2017
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yoshiharu ARUGA, Toshio KUMAGAI, Hitoshi MATSUMOTO
  • Patent number: 9616669
    Abstract: Provided is a liquid injecting apparatus equipped with a liquid injecting head, which is mounted on a carriage and moved reciprocally in a widthwise direction of a target, and a valve unit, which is mounted on the carriage to be supplied with liquid via a supply passage from a liquid retainer and to supply liquid to the liquid injecting head. The valve unit has a pressure chamber connected to the liquid retainer via the supply passage; a valve, which opens or closes the supply passage to supply liquid to the pressure chamber; and a flexible film member, which is displaced based on a negative pressure generated as liquid in the pressure chamber decreases to thereby operate the valve.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: April 11, 2017
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Yoshiharu Aruga, Toshio Kumagai, Hitoshi Matsumoto
  • Patent number: 9498966
    Abstract: Provided is a liquid injecting apparatus equipped with a liquid injecting head, which is mounted on a carriage and moved reciprocally in a widthwise direction of a target, and a valve unit, which is mounted on the carriage to be supplied with liquid via a supply passage from a liquid retainer and to supply liquid to the liquid injecting head. The valve unit has a pressure chamber connected to the liquid retainer via the supply passage; a valve, which opens or closes the supply passage to supply liquid to the pressure chamber; and a flexible film member, which is displaced based on a negative pressure generated as liquid in the pressure chamber decreases to thereby operate the valve.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: November 22, 2016
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Yoshiharu Aruga, Toshio Kumagai, Hitoshi Matsumoto
  • Publication number: 20160121616
    Abstract: Provided is a liquid injecting apparatus equipped with a liquid injecting head, which is mounted on a carriage and moved reciprocally in a widthwise direction of a target, and a valve unit, which is mounted on the carriage to be supplied with liquid via a supply passage from a liquid retainer and to supply liquid to the liquid injecting head. The valve unit has a pressure chamber connected to the liquid retainer via the supply passage; a valve, which opens or closes the supply passage to supply liquid to the pressure chamber; and a flexible film member, which is displaced based on a negative pressure generated as liquid in the pressure chamber decreases to thereby operate the valve.
    Type: Application
    Filed: January 11, 2016
    Publication date: May 5, 2016
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yoshiharu ARUGA, Toshio KUMAGAI, Hitoshi MATSUMOTO
  • Publication number: 20160009101
    Abstract: Provided is a liquid injecting apparatus equipped with a liquid injecting head, which is mounted on a carriage and moved reciprocally in a widthwise direction of a target, and a valve unit, which is mounted on the carriage to be supplied with liquid via a supply passage from a liquid retainer and to supply liquid to the liquid injecting head. The valve unit has a pressure chamber connected to the liquid retainer via the supply passage; a valve, which opens or closes the supply passage to supply liquid to the pressure chamber; and a flexible film member, which is displaced based on a negative pressure generated as liquid in the pressure chamber decreases to thereby operate the valve.
    Type: Application
    Filed: September 23, 2015
    Publication date: January 14, 2016
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yoshiharu ARUGA, Toshio KUMAGAI, Hitoshi MATSUMOTO
  • Patent number: 9193159
    Abstract: Provided is a liquid injecting apparatus equipped with a liquid injecting head, which is mounted on a carriage and moved reciprocally in a widthwise direction of a target, and a valve unit, which is mounted on the carriage to be supplied with liquid via a supply passage from a liquid retainer and to supply liquid to the liquid injecting head. The valve unit has a pressure chamber connected to the liquid retainer via the supply passage; a valve, which opens or closes the supply passage to supply liquid to the pressure chamber; and a flexible film member, which is displaced based on a negative pressure generated as liquid in the pressure chamber decreases to thereby operate the valve.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: November 24, 2015
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Yoshiharu Aruga, Toshio Kumagai, Hitoshi Matsumoto
  • Patent number: 9102158
    Abstract: An inkjet textile printing apparatus includes a penetrant liquid storage tank, a textile printing colored liquid storage tank, and first to third flow passages. The penetrant liquid storage tank is configured and arranged to store a penetrant liquid that facilitates penetration of a textile printing colored liquid into a fabric. The textile printing colored liquid storage tank is configured and arranged to store the textile printing colored liquid. The first flow passage connects the penetrant liquid storage tank and a first nozzle together. The second flow passage connects the textile printing colored liquid storage tank and a second nozzle together. The third flow passage connects the first flow passage and the second flow passage together and forms a flow passage for supplying the penetrant liquid to the second nozzle.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: August 11, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Yoshiharu Aruga, Shuhei Mori
  • Patent number: 9033458
    Abstract: A liquid ejecting head which includes a head unit in which a plurality of unit heads are arranged, a controller that transmits a control signal to the head unit, and a frame on which a plurality of the head units and the controllers are fixed, wherein the frame includes a head unit fixing section in which the head units are arranged side by side with the nozzle surface being exposed and a controller fixing section which is stacked on the head unit fixing section on the side opposite to the nozzle surface and in which the controllers are arranged side by side in an arrangement direction of the head units, the controller fixing section is composed of at least two layers, where the controllers which correspond to the adjacent head units are arranged alternately in the at least two layers in the controller fixing section.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: May 19, 2015
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Yoshiharu Aruga
  • Patent number: 8967776
    Abstract: Provided is a liquid injecting apparatus equipped with a liquid injecting head, which is mounted on a carriage and moved reciprocally in a widthwise direction of a target, and a valve unit, which is mounted on the carriage to be supplied with liquid via a supply passage from a liquid retainer and to supply liquid to the liquid injecting head. The valve unit has a pressure chamber connected to the liquid retainer via the supply passage; a valve, which opens or closes the supply passage to supply liquid to the pressure chamber; and a flexible film member, which is displaced based on a negative pressure generated as liquid in the pressure chamber decreases to thereby operate the valve.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: March 3, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Yoshiharu Aruga, Toshio Kumagai, Hitoshi Matsumoto
  • Publication number: 20150022596
    Abstract: Provided is a liquid injecting apparatus equipped with a liquid injecting head, which is mounted on a carriage and moved reciprocally in a widthwise direction of a target, and a valve unit, which is mounted on the carriage to be supplied with liquid via a supply passage from a liquid retainer and to supply liquid to the liquid injecting head. The valve unit has a pressure chamber connected to the liquid retainer via the supply passage; a valve, which opens or closes the supply passage to supply liquid to the pressure chamber; and a flexible film member, which is displaced based on a negative pressure generated as liquid in the pressure chamber decreases to thereby operate the valve.
    Type: Application
    Filed: October 9, 2014
    Publication date: January 22, 2015
    Inventors: Yoshiharu ARUGA, Toshio KUMAGAI, Hitoshi MATSUMOTO
  • Publication number: 20140292859
    Abstract: A liquid ejecting head which includes a head unit in which a plurality of unit heads are arranged, a controller that transmits a control signal to the head unit, and a frame on which a plurality of the head units and the controllers are fixed, wherein the frame includes a head unit fixing section in which the head units are arranged side by side with the nozzle surface being exposed and a controller fixing section which is stacked on the head unit fixing section on the side opposite to the nozzle surface and in which the controllers are arranged side by side in an arrangement direction of the head units, the controller fixing section is composed of at least two layers, where the controllers which correspond to the adjacent head units are arranged alternately in the at least two layers in the controller fixing section.
    Type: Application
    Filed: March 25, 2014
    Publication date: October 2, 2014
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Yoshiharu ARUGA