Patents by Inventor Masakazu Tokunaga

Masakazu Tokunaga 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).

  • Publication number: 20230393925
    Abstract: Proposed are a failure handling support apparatus and method capable of optimizing maintenance work by promptly presenting to a maintenance worker the objective urgency and priority of recovery measures to be taken for handling a failure that occurred in a system being used by numerous users. Status monitoring of a network and server devices is performed, and, when a failure is detected in the status monitoring, an urgency of handling the failure is calculated based on whether there has been any access from a user from an occurrence of the failure up until now, a priority of the failure is determined based on the calculated urgency, and a determination result of the priority is presented to the maintenance worker.
    Type: Application
    Filed: March 2, 2023
    Publication date: December 7, 2023
    Inventor: Masakazu TOKUNAGA
  • Patent number: 10336095
    Abstract: There is provided a printing apparatus including: a transport mechanism; an ink jet head; a camera; a light source that irradiates a capturing area of the camera with light at a predetermined angle with respect to a print surface of the print medium; a carriage that includes the ink jet head, the camera, and the light source; and a controller (processor) that acquires reflectance characteristic data of irradiation light from the light source based on a captured image obtained by capturing an image of a printed test pattern by the camera, determines a specific initial-and-final-image-data range or a specific acquisition range in which the reflectance is within a specific reflectance range based on the acquired reflectance characteristic data, and acquires captured image data corresponding to the specific initial-and-final-image-data range or the specific acquisition range.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: July 2, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Kazunari Tsukada, Masakazu Tokunaga
  • Publication number: 20180339522
    Abstract: There is provided a printing apparatus including: a transport mechanism; an ink jet head; a camera; a light source that irradiates a capturing area of the camera with light at a predetermined angle with respect to a print surface of the print medium; a carriage that includes the ink jet head, the camera, and the light source; and a controller (processor) that acquires reflectance characteristic data of irradiation light from the light source based on a captured image obtained by capturing an image of a printed test pattern by the camera, determines a specific initial-and-final-image-data range or a specific acquisition range in which the reflectance is within a specific reflectance range based on the acquired reflectance characteristic data, and acquires captured image data corresponding to the specific initial-and-final-image-data range or the specific acquisition range.
    Type: Application
    Filed: May 24, 2018
    Publication date: November 29, 2018
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Kazunari TSUKADA, Masakazu TOKUNAGA
  • Patent number: 9254689
    Abstract: A printing apparatus includes: a nozzle head that has nozzles ejecting ink that is cured by an electromagnetic wave and relatively moves with respect to a printing medium; an applying section that relatively moves together with the nozzle head, and applies the electromagnetic wave; and a control section that controls intensity of the electromagnetic wave, in which a first intensity of the electromagnetic wave in a region in which the applying section and the printing medium face each other and that is a constant speed region in which a speed of the relative movement is constant is greater than a second intensity of the electromagnetic wave in regions in which the applying section and the printing medium do not face each other in at least a part thereof and that are acceleration and deceleration regions in which the speed of the relative movement is not constant.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: February 9, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Masakazu Tokunaga, Takeshi Tanoue
  • Publication number: 20150097888
    Abstract: A printing apparatus includes: a nozzle head that has nozzles ejecting ink that is cured by an electromagnetic wave and relatively moves with respect to a printing medium; an applying section that relatively moves together with the nozzle head, and applies the electromagnetic wave; and a control section that controls intensity of the electromagnetic wave, in which a first intensity of the electromagnetic wave in a region in which the applying section and the printing medium face each other and that is a constant speed region in which a speed of the relative movement is constant is greater than a second intensity of the electromagnetic wave in regions in which the applying section and the printing medium do not face each other in at least a part thereof and that are acceleration and deceleration regions in which the speed of the relative movement is not constant.
    Type: Application
    Filed: September 17, 2014
    Publication date: April 9, 2015
    Inventors: Masakazu Tokunaga, Takeshi Tanoue
  • Patent number: 8703296
    Abstract: A functioning optical lens includes a molded polyamide layer, and an optical sheet including a polyamide sheet layer and an optical film layer. Such a functioning optical lens may be prepared by bending an optical sheet including an optical film layer and a polyamide sheet layer, and injection molding a polyamide composition onto the bent polyamide sheet layer so as to thermally fuse the polyamide composition and the polyamide sheet layer with each other.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: April 22, 2014
    Assignee: Daicel-Evonik Ltd.
    Inventors: Toshihiko Fujinaka, Masakazu Tokunaga
  • Patent number: 8395352
    Abstract: There is provided a power transmission control device provided in a power transmission device included in a contactless power transmission system in which power is transmitted from the power transmission device to a power receiving device by electromagnetically coupling an elementary coil and a secondary coil and the power is supplied to a load of the power receiving device. The power transmission control device includes a load state detection circuit that detects a load state of the power receiving device on the basis of a first signal from a first end of a resonance capacitor forming a resonant circuit with the elementary coil and a second signal from a second end of the resonance capacitor.
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: March 12, 2013
    Assignee: Seiko Epson Corporation
    Inventors: Takashi Aoyama, Masakazu Tokunaga
  • Publication number: 20100176659
    Abstract: There is provided a power transmission control device provided in a power transmission device included in a contactless power transmission system in which power is transmitted from the power transmission device to a power receiving device by electromagnetically coupling an elementary coil and a secondary coil and the power is supplied to a load of the power receiving device. The power transmission control device includes a load state detection circuit that detects a load state of the power receiving device on the basis of a first signal from a first end of a resonance capacitor forming a resonant circuit with the elementary coil and a second signal from a second end of the resonance capacitor.
    Type: Application
    Filed: January 11, 2010
    Publication date: July 15, 2010
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takashi AOYAMA, Masakazu TOKUNAGA
  • Publication number: 20070148482
    Abstract: A functioning optical lens includes a molded polyamide layer, and an optical sheet including a polyamide sheet layer and an optical film layer. Such a functioning optical lens may be prepared by bending an optical sheet including an optical film layer and a polyamide sheet layer, and injection molding a polyamide composition onto the bent polyamide sheet layer so as to thermally fuse the polyamide composition and the polyamide sheet layer with each other.
    Type: Application
    Filed: December 6, 2006
    Publication date: June 28, 2007
    Inventors: Toshihiko Fujinaka, Masakazu Tokunaga