Patents by Inventor Satoru YAKUSHIJI

Satoru YAKUSHIJI 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).

  • Illumination lens
    Patent number: 11105489
    Abstract: An illumination lens includes an incident face (510), being provided in a recessed manner in a bottom apex part of the lens body (51), and receiving light from the light source (41); a reflection face (520) on the inner side of an outer periphery of the lens body (51), totally reflecting the light, having reached from the incident face (510); and an emission face (530) at the upper end of the lens body (51), emitting the light, having reached from the incident face (510) and the reflection face (520), to the outside, and the incident face (510) distributes the light, which could be directed toward the entire region of the reflection face (520), only in a predetermined range (521) within the reflection face, being adjacent to the upper end side portion, following the emission face (530), and being closer to the bottom apex part.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: August 31, 2021
    Assignee: KOITO ELECTRIC INDUSTRIES, LTD.
    Inventors: Tadashi Fujii, Jun Ito, Youmei Kaminaga, Yasuyo Kojima, Satoru Yakushiji
  • ILLUMINATION LENS
    Publication number: 20210062997
    Abstract: An illumination lens includes an incident face (510), being provided in a recessed manner in a bottom apex part of the lens body (51), and receiving light from the light source (41); a reflection face (520) on the inner side of an outer periphery of the lens body (51), totally reflecting the light, having reached from the incident face (510); and an emission face (530) at the upper end of the lens body (51), emitting the light, having reached from the incident face (510) and the reflection face (520), to the outside, and the incident face (510) distributes the light, which could be directed toward the entire region of the reflection face (520), only in a predetermined range (521) within the reflection face, being adjacent to the upper end side portion, following the emission face (530), and being closer to the bottom apex part.
    Type: Application
    Filed: March 8, 2019
    Publication date: March 4, 2021
    Applicant: Koito Electric Industries, Ltd.
    Inventors: Tadashi FUJII, Jun ITO, Youmei KAMINAGA, Yasuyo KOJIMA, Satoru YAKUSHIJI