Patents by Inventor Kazushige Matsumoto

Kazushige Matsumoto 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: 20250052382
    Abstract: Provided is a light-emitting device, a lighting appliance, and a street light that emit light with minimal negative effects on the behavior of sea turtles and which makes irradiated objects easily visible to humans. The light-emitting device includes a light-emitting element having an emission peak wavelength within a range from 400 nm to 490 nm; and a first phosphor having an emission peak wavelength within a range from 570 nm to 680 nm, wherein the light-emitting device, lighting appliance, and street light emit light that has a correlated color temperature of 1950 K or less, an average color rendering index Ra of 40 or greater, a full width at half maximum of an emission spectrum indicating a maximum emission intensity in an emission spectrum of the light-emitting device of 110 nm or less, and a sea turtle light attraction index T derived from Equation (1) of 0.416 or less.
    Type: Application
    Filed: October 30, 2024
    Publication date: February 13, 2025
    Applicant: NICHIA CORPORATION
    Inventors: Mika MATSUMOTO, Miyuki KURATA, Kazushige FUJIO
  • Publication number: 20250052381
    Abstract: A light emitting device comprises a light emitting element having a light emission peak wavelength in a range of 400 nm or more and 490 nm or less and a first fluorescent material having a light emission peak wavelength in a range of 570 nm or more and 680 nm or less, and emits light having a correlated color temperature being 1,950 K or less, an average color rendering index Ra being 70 or more, a full width at half maximum of a light emission peak having the maximum light emission intensity being 110 nm or less, and a ratio B/L of an effective radiance B to a luminance L being 0.151 or less, wherein the luminance of light emitted by the light emitting device in a range of 300 nm or more and 800 nm or less when B and L is as defined in the disclosure.
    Type: Application
    Filed: October 28, 2024
    Publication date: February 13, 2025
    Applicant: NICHIA CORPORATION
    Inventors: Mika MATSUMOTO, Kazushige FUJIO
  • Publication number: 20090130464
    Abstract: An antistatic hard coat film showing antistatic property and antireflection property for outer lights as well as superior hard coat properties such as superior surface hardness and antiscratching property is provided. The antistatic hard coat film of the present invention comprises an antistatic hard coat layer formed from an ionizing radiation curable resin, a pigment and a polymer antistatic agent having an organopolysiloxane unit and a quaternary ammonium salt unit, and the hard coat layer contains 1 to 5% by weight of the pigment. Weight ratio of the ionizing radiation curable resin and the polymer antistatic agent is preferably 6:4 to 5:5.
    Type: Application
    Filed: February 13, 2007
    Publication date: May 21, 2009
    Inventors: Hikaru Nishinaga, Keiichi Kitahara, Masato Saito, Kazushige Matsumoto, Masuo Koyama, Yoshihisa Kimura