Patents by Inventor KEISUKE OOTSU

KEISUKE OOTSU 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).

  • Optical element and imaging apparatus
    Patent number: 9778401
    Abstract: An optical element in which light with a large principal ray input angle is gradually input from a center to a peripheral portion, a thickness gradually increases from the center to the peripheral portion, and 1<RD?1.085 is satisfied, when an increase ratio of a thickness to the center at an outermost peripheral portion to which light of which the principal ray input angle is maximum is input is set to RD.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: October 3, 2017
    Assignee: SONY CORPORATION
    Inventors: Akito Kuriyama, Isamu Konishiike, Kazumasa Yagi, Keisuke Ootsu, Tatsuya Nakatsuji, Takumi Tsuji, Hitoshi Nakanishi, Masaki Ando
  • OPTICAL ELEMENT AND IMAGING APPARATUS
    Publication number: 20150277001
    Abstract: An optical element in which light with a large principal ray input angle is gradually input from a center to a peripheral portion, a thickness gradually increases from the center to the peripheral portion, and 1<RD<1.085 is satisfied, when an increase ratio of a thickness to the center at an outermost peripheral portion to which light of which the principal ray input angle is maximum is input is set to RD.
    Type: Application
    Filed: March 17, 2015
    Publication date: October 1, 2015
    Inventors: AKITO KURIYAMA, ISAMU KONISHIIKE, KAZUMASA YAGI, KEISUKE OOTSU, TATSUYA NAKATSUJI, TAKUMI TSUJI, HITOSHI NAKANISHI, MASAKI ANDO