Patents by Inventor Kazuki HIEJIMA

Kazuki HIEJIMA 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).

  • Inkjet head with damper member in common ink chamber, and method for driving inkjet head
    Patent number: 9216576
    Abstract: An inkjet head includes pressure chambers arranged in 2 or more rows and a common ink chamber connected to all the pressure chambers, wherein each of the pressure chambers includes a damper member inside of the common ink chamber of the inkjet head for commonly supplying an ink from the common ink chamber via an ink inlet which faces the common ink chamber, and the shortest distance between the damper member and the ink inlet is made shorter than the distance between ink inlets in adjacent rows of pressure chambers.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: December 22, 2015
    Assignee: KONICA MINOLTA, INC.
    Inventors: Ryohei Kobayashi, Masato Ueda, Kazuki Hiejima
  • INKJET HEAD AND METHOD FOR DRIVING INKJET HEAD
    Publication number: 20150138282
    Abstract: An inkjet head includes pressure chambers arranged in 2 or more rows and a common ink chamber connected to all the pressure chambers, wherein each of the pressure chambers includes a damper member inside of the common ink chamber of the inkjet head for commonly supplying an ink from the common ink chamber via an ink inlet which faces the common ink chamber, and the shortest distance between the damper member and the ink inlet is made shorter than the distance between ink inlets in adjacent rows of pressure chambers.
    Type: Application
    Filed: August 27, 2014
    Publication date: May 21, 2015
    Inventors: Ryohei KOBAYASHI, Masato UEDA, Kazuki HIEJIMA