Patents by Inventor Tamio Murano

Tamio Murano 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).

  • Current signal controlled camera system
    Patent number: 4443082
    Abstract: A camera system in which information is transmitted between a camera body and an accessory in the form of a current signal is provided. A voltage-to-current converter is provided in at least either one of the camera body and accessory and a current-to-voltage converter is provided in at least the other of the camera body and accessory. Thus, analog information can be transmitted between the camera body and the accessory with high accuracy even if they have separate voltage sources different in level.
    Type: Grant
    Filed: July 22, 1982
    Date of Patent: April 17, 1984
    Assignee: Ricoh Company, Ltd.
    Inventors: Tamio Murano, Satoshi Yamane, Toshitatsu Suzuki, Yoshio Fukushima
  • Focusing-position-detection circuit
    Patent number: 4432622
    Abstract: A focusing position detection circuit provided with a pair of light receiving element arrays respectively disposed in front of and behind a predetermined focusing plane of an optical system, capable of determining the position of the optical system by the output signals of the light receiving element arrays, and outputting an analog signal corresponding to the position of the optical system in the defocused range, but in the focused range with a predetermined tolerance, outputting a focused signal at a predetermined level.
    Type: Grant
    Filed: June 7, 1982
    Date of Patent: February 21, 1984
    Assignee: Ricoh Company, Ltd.
    Inventors: Ikue Kawashima, Yoshio Fukushima, Tamio Murano, Toshitatsu Suzuki