Patents by Inventor Itsuo Takanshi

Itsuo Takanshi 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).

  • Method and apparatus for recording optical information by using a photoelectric transducer
    Patent number: 5315410
    Abstract: A system has a first electrode, a second electrode, a photosensitive member located between the first and second electrodes, a recording member located between the first and second electrodes, and an optical shutter. In this system, light having information to be recorded is applied to the photosensitive member. The light information is recorded on the recording member. An exposure amount of the light with respect to the photosensitive member is set by setting a time during which the optical shutter remains open. A drive voltage of a predetermined variation manner is applied between the first and second electrodes during the recording of the light information on the recording member.
    Type: Grant
    Filed: February 8, 1991
    Date of Patent: May 24, 1994
    Assignee: Victor Company of Japan, Ltd.
    Inventors: Itsuo Takanshi, Shintaro Nakagaki, Tsutou Asakura, Masato Furuya, Yoshihisa Koyama, Yuji Uchiyama