Patents Assigned to C. Itoh Fuel Co., Ltd.
  • Recording telephone system equipped with a remote control change-over switch
    Patent number: 4891834
    Abstract: A message telephone with message recording and reproducing function equipped with remote control switch is disclosed. The message telephone has a calling signal identification circuit and after counting a predetermined number of calling signals, if the calling party once disconnects the call and orginates a second call within a predetermined time interval the device works as a message telephone after providing an identifying MF signal pass-word to work various message functions under control of the remote calling party.
    Type: Grant
    Filed: October 18, 1988
    Date of Patent: January 2, 1990
    Assignees: C. Itoh Fuel Co., Ltd., Nishitomo Co., Ltd.
    Inventors: Mutsuo Sezaki, Kinji Nishimura