Patents by Inventor Kazuaki KAMIO

Kazuaki KAMIO 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).

  • Lens barrel and camera
    Patent number: 10877236
    Abstract: Lens barrel includes: a first barrel; and a second barrel that is arranged on an outer circumferential side or on an inner circumferential side of first barrel, second barrel being movable in a first direction relative to first barrel without being rotated relative to the first barrel, wherein: second barrel has a first engaging part that protrudes toward first barrel and a second engaging part that protrudes toward first barrel, the second engaging part being different from first engaging part; the first barrel has a first engaged part with which the first engaging part is engaged so as to be linearly movable and a second engaged part with which the second engaging part is engaged so as to be linearly movable; and one end of the first engaging part and another end of the second engaging part are arranged at different positions in a linear motion direction.
    Type: Grant
    Filed: December 24, 2015
    Date of Patent: December 29, 2020
    Assignee: NIKON CORPORATION
    Inventors: Kazuaki Kamio, Takuji Hamasaki
  • LENS BARREL AND CAMERA
    Publication number: 20180113271
    Abstract: Lens barrel includes: a first barrel; and a second barrel that is arranged on an outer circumferential side or on an inner circumferential side of first barrel, second barrel being movable in a first direction relative to first barrel without being rotated relative to the first barrel, wherein: second barrel has a first engaging part that protrudes toward first barrel and a second engaging part that protrudes toward first barrel, the second engaging part being different from first engaging part; the first barrel has a first engaged part with which the first engaging part is engaged so as to be linearly movable and a second engaged part with which the second engaging part is engaged so as to be linearly movable; and one end of the first engaging part and another end of the second engaging part are arranged at different positions in a linear motion direction.
    Type: Application
    Filed: December 24, 2015
    Publication date: April 26, 2018
    Applicant: NIKON CORPORATION
    Inventors: Kazuaki KAMIO, Takuji HAMASAKI