Patents by Inventor Kohta AKIYAMA

Kohta AKIYAMA 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).

  • Publication number: 20130215173
    Abstract: An image forming apparatus includes: and a unit that electrically shuts off a pressure generating unit corresponding to a nozzle ejecting no droplet, from a drive waveform generating unit for a period of a time Tb satisfying a relation Tb?T2, and that applies, at a time after the shutoff, a voltage of a potential V1 to the pressure generating unit, where a potential serving as a reference for the drive waveform is denoted as V1, a minimum potential difference from the potential V1 required to displace a pressure generating unit to vibrate a meniscus with ejecting no liquid droplet from a nozzle is denoted as ?V2, a time required for a potential to drop by the potential difference ?V2 due to self-discharge after a pressure generating unit is charged to a predetermined potential is denoted as T2.
    Type: Application
    Filed: February 14, 2013
    Publication date: August 22, 2013
    Inventor: Kohta AKIYAMA