Patents by Inventor Naoaki OKAMURA

Naoaki OKAMURA 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).

  • Timepiece with increased information view ability
    Patent number: 11181864
    Abstract: In a timepiece, moments of inertia of a first pointer and a second pointer that are for displaying first information and second information, respectively and that have a same rotation axis are the same. As a result, parts having identical specifications may be used in a drive mechanism of the first pointer and a drive mechanism of the second pointer. Further, color schemes of the first pointer and second pointer differ. As a result, a user may easily distinguish the first pointer and the second pointer.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: November 23, 2021
    Assignee: CITIZEN WATCH CO., LTD.
    Inventors: Naoaki Okamura, Akihiko Kuroda
  • TIMEPIECE
    Publication number: 20200103828
    Abstract: In a timepiece, moments of inertia of a first pointer and a second pointer that are for displaying first information and second information, respectively and that have a same rotation axis are the same. As a result, parts having identical specifications may be used in a drive mechanism of the first pointer and a drive mechanism of the second pointer. Further, color schemes of the first pointer and second pointer differ. As a result, a user may easily distinguish the first pointer and the second pointer.
    Type: Application
    Filed: September 16, 2019
    Publication date: April 2, 2020
    Applicant: CITIZEN WATCH CO., LTD.
    Inventors: Naoaki OKAMURA, Akihiko KURODA
  • Watch
    Patent number: D913123
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: March 16, 2021
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Naoaki Okamura, Izumi Kubo
  • Smartwatch
    Patent number: D925524
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: July 20, 2021
    Assignee: Citizen Watch Co., Ltd.
    Inventor: Naoaki Okamura