Patents by Inventor Tomoshige Kaneko

Tomoshige Kaneko 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: 10913267
    Abstract: A method of controlling a liquid ejecting apparatus that includes a liquid ejecting head having nozzles configured to eject a liquid, pressure chambers communicating with the nozzles, and drive elements configured to change the volume in the pressure chambers, and a drive-waveform generating circuit configured to generate a drive waveform for driving the drive elements to vibrate the liquid in the nozzles is provided. The method includes detecting a power-off operation for issuing an instruction for turning off an electric power of the liquid ejecting apparatus and vibrating the liquid by driving piezoelectric elements by the drive waveform in response to detecting the power-off operation by the detecting.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: February 9, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Tomoshige Kaneko, Hiroaki Okui
  • Publication number: 20190389201
    Abstract: A method of controlling a liquid ejecting apparatus that includes a liquid ejecting head having nozzles configured to eject a liquid, pressure chambers communicating with the nozzles, and drive elements configured to change the volume in the pressure chambers, and a drive-waveform generating circuit configured to generate a drive waveform for driving the drive elements to vibrate the liquid in the nozzles is provided. The method includes detecting a power-off operation for issuing an instruction for turning off an electric power of the liquid ejecting apparatus and vibrating the liquid by driving piezoelectric elements by the drive waveform in response to detecting the power-off operation by the detecting.
    Type: Application
    Filed: June 26, 2019
    Publication date: December 26, 2019
    Inventors: Tomoshige KANEKO, Hiroaki OKUI
  • Patent number: 9981463
    Abstract: A method for manufacturing a liquid discharging apparatus having a liquid discharging head that is attached to an apparatus main body so as to be capable of being attached or detached and that discharges a liquid from a nozzle includes: identifying an alignment shift of the liquid discharging head attached to the apparatus main body; and identifying correction information that is correlated with the alignment shift identified in the identifying of the alignment shift based on a correction information table in which the correction information related to liquid discharge control and the alignment shift are correlated with each other.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: May 29, 2018
    Assignee: Seiko Epson Corporation
    Inventor: Tomoshige Kaneko
  • Publication number: 20170291410
    Abstract: A method for manufacturing a liquid discharging apparatus having a liquid discharging head that is attached to an apparatus main body so as to be capable of being attached or detached and that discharges a liquid from a nozzle includes: identifying an alignment shift of the liquid discharging head attached to the apparatus main body; and identifying correction information that is correlated with the alignment shift identified in the identifying of the alignment shift based on a correction information table in which the correction information related to liquid discharge control and the alignment shift are correlated with each other.
    Type: Application
    Filed: March 16, 2017
    Publication date: October 12, 2017
    Inventor: Tomoshige KANEKO
  • Patent number: 9469110
    Abstract: A liquid ejecting head includes: an ejection surface along which a plurality of nozzles that eject ink are arranged; and a projection portion which has a long shape on the ejection surface, and protrudes toward the ejection surface, in which the projection portion includes a part in which the height varies from one end side to the other end side, in which the width of the projection portion becomes narrower from a base side to a tip end side in the direction of height, and in which the shapes of end portions of the projection portions on one end side and the other end side are different from each other. Accordingly, even when a medium transported opposing the ejection surface is curled, it is possible to prevent the medium from floating up by the projection portion, and thus, it is possible to prevent the medium from coming into contact with the ejection surface by a simple configuration.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: October 18, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Tomoshige Kaneko
  • Publication number: 20160279934
    Abstract: A liquid ejecting head includes: an ejection surface along which a plurality of nozzles that eject ink are arranged; and a projection portion which has a long shape on the ejection surface, and protrudes toward the ejection surface, in which the projection portion includes a part in which the height varies from one end side to the other end side, in which the width of the projection portion becomes narrower from a base side to a tip end side in the direction of height, and in which the shapes of end portions of the projection portions on one end side and the other end side are different from each other. Accordingly, even when a medium transported opposing the ejection surface is curled, it is possible to prevent the medium from floating up by the projection portion, and thus, it is possible to prevent the medium from coming into contact with the ejection surface by a simple configuration.
    Type: Application
    Filed: March 3, 2016
    Publication date: September 29, 2016
    Inventor: Tomoshige KANEKO
  • Patent number: 8308260
    Abstract: A liquid discharging apparatus includes: a pressure chamber communicated with a nozzle; an element which performs the operation of imparting a pressure change to liquid in the pressure chamber; and a pulse generation section which generates a preceding discharge pulse and a following discharge pulse that operate the element, and determines a period from the end of the generation of the preceding discharge pulse to the start of the generation of the following discharge pulse in accordance with the liquid droplet amount which is discharged from the nozzle.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: November 13, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Tomoshige Kaneko
  • Patent number: 8256864
    Abstract: A return component that gently expands the volume of the pressure generating chamber, wherein a time interval of the expansion component is longer than that of the expansion holding component, and a time interval of the return component is longer than that of the contraction holding component, wherein a first reference potential is set to be 50% or more of the potential of the contraction holding component, and wherein when the ejection driving pulse is applied to a piezoelectric oscillator, a flow rate of the ink ejected from the nozzle opening is 0.36 mg/s or more.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: September 4, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Tomoshige Kaneko
  • Publication number: 20110148962
    Abstract: A return component that gently expands the volume of the pressure generating chamber, wherein a time interval of the expansion component is longer than that of the expansion holding component, and a time interval of the return component is longer than that of the contraction holding component, wherein a first reference potential is set to be 50% or more of the potential of the contraction holding component, and wherein when the ejection driving pulse is applied to a piezoelectric oscillator, a flow rate of the ink ejected from the nozzle opening is 0.36 mg/s or more.
    Type: Application
    Filed: November 5, 2010
    Publication date: June 23, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Tomoshige KANEKO
  • Publication number: 20100214335
    Abstract: A liquid discharging apparatus includes: a pressure chamber communicated with a nozzle; an element which performs the operation of imparting a pressure change to liquid in the pressure chamber; and a pulse generation section which generates a preceding discharge pulse and a following discharge pulse that operate the element, and determines a period from the end of the generation of the preceding discharge pulse to the start of the generation of the following discharge pulse in accordance with the liquid droplet amount which is discharged from the nozzle.
    Type: Application
    Filed: February 19, 2010
    Publication date: August 26, 2010
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Tomoshige Kaneko