Patents by Inventor Naoto Kamijo

Naoto Kamijo 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).

  • Fixing device, projection optical device, and projector
    Patent number: 11921407
    Abstract: A fixing device that fixes, to a light emitting device that emits light, a lens barrel included in a projection optical device and holding a plurality of lenses includes a first tube member, a contact section provided on an outer side of the first tube member and in contact with a holding section included in the light emitting device, and a pressing mechanism provided to be opposed to the contact section and configured to press the holding section toward the contact section when the fixing device is attached to the light emitting device.
    Type: Grant
    Filed: January 20, 2022
    Date of Patent: March 5, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Naoto Takehana, Hirofumi Okubo, Kosho Kamijo
  • CHATBOT CONTROL DEVICE AND CHATBOT CONTROL METHOD
    Publication number: 20220222360
    Abstract: An access restriction can be suitably imposed to a user accessing a chatbot iron an external chat system.
    Type: Application
    Filed: January 11, 2022
    Publication date: July 14, 2022
    Inventors: Yasuhiro Kawase, Hironori Watanabe, Naoto Kamijo