Patents by Inventor Naohide MIYASAKA

Naohide MIYASAKA 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).

  • Ultraviolet irradiation device and method for curing ultraviolet-curing resin
    Patent number: 11472069
    Abstract: An ultraviolet irradiation device includes a light-emitting element, a temperature control element, and a control circuit. The light-emitting element is configured to emit an ultraviolet light. The temperature control element is configured to control a temperature of the light-emitting element. The control circuit is configured to control the temperature control element based on a voltage of the light-emitting element so as to control a peak wavelength of the ultraviolet light.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: October 18, 2022
    Assignee: NICHIA CORPORATION
    Inventors: Naohide Miyasaka, Yoshitaka Tanaka, Minoru Kitahara
  • Measurement device for light-emitting device and method for measuring light-emitting device
    Patent number: 11099061
    Abstract: A measurement device for a light-emitting device includes a light attenuator, a photometric sphere, and a light detector. The light attenuator includes a first surface and a heat dissipator. A first light that is emitted from the first light-emitting device is incident on the first surface. The first surface is configured to absorb a portion of the first light. The heat dissipator is configured to dissipate heat of the first surface. The photometric sphere has an inner surface to reflect the first light reflected by the first surface. The light detector is configured to receive at least a portion of the first light reflected by the inner surface.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: August 24, 2021
    Assignee: NICHIA CORPORATION
    Inventors: Katsuyuki Onozuka, Minoru Kitahara, Naohide Miyasaka, Naoki Nakamura, Takanori Aruga, Shinobu Ito
  • Light-emitting module and control module
    Patent number: 10805995
    Abstract: A light-emitting module includes a light emitter including a first semiconductor light-emitting element, a second semiconductor light-emitting element, and a third semiconductor light-emitting element. A first current regulator is to supply the first current to the first semiconductor light-emitting element. The second current regulator is to supply the second current to the second semiconductor light-emitting element. The third current regulator is to supply the third current to the third semiconductor light-emitting element. A control circuit is configured to control at least one of the first current regulator to control the first current, the second current regulator to control the second current, or control the third current regulator to control the third current according to at least one of fluctuation of the first voltage drop, fluctuation of the second voltage drop, or fluctuation of the third voltage drop.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: October 13, 2020
    Assignee: NICHIA CORPORATION
    Inventors: Naohide Miyasaka, Naoki Nakamura, Minoru Kitahara
  • ULTRAVIOLET IRRADIATION DEVICE AND METHOD FOR CURING ULTRAVIOLET-CURING RESIN
    Publication number: 20200101644
    Abstract: An ultraviolet irradiation device includes a light-emitting element, a temperature control element, and a control circuit. The light-emitting element is configured to emit an ultraviolet light. The temperature control element is configured to control a temperature of the light-emitting element. The control circuit is configured to control the temperature control element based on a voltage of the light-emitting element so as to control a peak wavelength of the ultraviolet light.
    Type: Application
    Filed: September 30, 2019
    Publication date: April 2, 2020
    Applicant: NICHIA CORPORATION
    Inventors: Naohide MIYASAKA, Yoshitaka Tanaka, Minoru Kitahara
  • MEASUREMENT DEVICE FOR LIGHT-EMITTING DEVICE AND METHOD FOR MEASURING LIGHT-EMITTING DEVICE
    Publication number: 20190376842
    Abstract: A measurement device for a light-emitting device includes a light attenuator, a photometric sphere, and a light detector. The light attenuator includes a first surface and a heat dissipator. A first light that is emitted from the first light-emitting device is incident on the first surface. The first surface is configured to absorb a portion of the first light. The heat dissipator is configured to dissipate heat of the first surface. The photometric sphere has an inner surface to reflect the first light reflected by the first surface. The light detector is configured to receive at least a portion of the first light reflected by the inner surface.
    Type: Application
    Filed: June 10, 2019
    Publication date: December 12, 2019
    Applicant: NICHIA CORPORATION
    Inventors: Katsuyuki ONOZUKA, Minoru KITAHARA, Naohide MIYASAKA, Naoki NAKAMURA, Takanori ARUGA, Shinobu ITO
  • LIGHT-EMITTING MODULE AND CONTROL MODULE
    Publication number: 20190364635
    Abstract: A light-emitting module includes a light emitter including a first semiconductor light-emitting element, a second semiconductor light-emitting element, and a third semiconductor light-emitting element. A first current regulator is to supply the first current to the first semiconductor light-emitting element. The second current regulator is to supply the second current to the second semiconductor light-emitting element. The third current regulator is to supply the third current to the third semiconductor light-emitting element. A control circuit is configured to control at least one of the first current regulator to control the first current, the second current regulator to control the second current, or control the third current regulator to control the third current according to at least one of fluctuation of the first voltage drop, fluctuation of the second voltage drop, or fluctuation of the third voltage drop.
    Type: Application
    Filed: May 10, 2019
    Publication date: November 28, 2019
    Applicant: NICHIA CORPORATION
    Inventors: Naohide MIYASAKA, Naoki NAKAMURA, Minoru KITAHARA