Patents by Inventor Chihiro Maruyama

Chihiro Maruyama 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).

  • Ink jet system image forming device and waste ink tube cleaning method
    Publication number: 20020171706
    Abstract: Ink (pigment component ink) is jetted toward an ink absorber (34K) from the nozzle (22K) only of a print head (20K), with no ink jetted from print heads (20C, 20M, 20Y). Next, a carriage (24) is moved in an arrow B′ direction to position the print head (20C) directly above a cap (32K), at that time ink (dye component ink) is jetted toward the ink absorber (34K) from the nozzle (22C) only of the print head (20C) to allow the dye component ink to flow into a waste ink tube (36K). Then, ink (dye component ink) is similarly jetted toward the ink absorber (34K) from the nozzle (22M) only of the print head (20M), whereby the pigment component ink is allowed to flow smoothly without clogging a waste ink tube with a stuck, solid pigment component ink.
    Type: Application
    Filed: May 1, 2002
    Publication date: November 21, 2002
    Inventors: Kazutaka Miyamoto, Chihiro Maruyama