Patents by Inventor Youichi Wakai

Youichi Wakai 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).

  • Patent number: 4398834
    Abstract: A demonstration function is included in an electronic watch capable of displaying the plurality of functional modes of the watch, which modes are subject to setting and correction by selective operation of a plurality of external members. The demonstration mode, induced by a selected operation of external members, displays in automatic sequence every function of the watch. Concurrently with the automatic, sequenced display of functions, display markers are visible indicating which external members need be operated to manually and independently produce each displayed function. Accordingly, the watch demonstrates and teaches its own operation and capabilities.
    Type: Grant
    Filed: January 28, 1982
    Date of Patent: August 16, 1983
    Assignee: Kabushiki Kaisha Suwa Seikosha
    Inventor: Youichi Wakai
  • Patent number: 4365898
    Abstract: A time-correcting mechanism is actuated by a single external member which is rotated, pushed and pulled. Data representative of the rotational speed of the external member is stored in memory and the digital time display is subsequently adjusted in predetermined amounts and rates in accordance with the stored data. In an alternative mechanism, as few as one corrective pulse is applied to a one-minute counter for minor display adjustment when the external member is slowly rotated. More-rapid rotation of the external member causes a plurality of quickly fed pulses to be applied to a one-minute counter, and still more rapid rotation causes pulses to be applied to both the one- and ten-minute counters. Large adjustments in the display are rapidly accomplished.
    Type: Grant
    Filed: January 31, 1980
    Date of Patent: December 28, 1982
    Assignee: Kabushiki Kaisha Suwa Seikosha
    Inventor: Youichi Wakai