Patents by Inventor Seishin Yoshida

Seishin Yoshida 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 set comprising black ink compositions, and recording method, recorded matter and ink-jet recording apparatus using the same
    Patent number: 6846353
    Abstract: The present invention provides an ink set comprising at least two black ink compositions each containing a carbon black and a complementary colorant, wherein the at least two black ink compositions have different carbon black contents from one another, and wherein the complementary colorants of at least two of the black ink compositions are different from one another. Also disclosed are a recording method, recorded matter and a recording apparatus using the ink set.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: January 25, 2005
    Assignee: Seiko Epson Corporation
    Inventors: Tsuyoshi Sano, Seishin Yoshida
  • Tint adjustment for monochrome image printing
    Publication number: 20040227977
    Abstract: On the basis of a standard one-dimensional LUT 412, a plurality of one-dimensional LUTs 413 having mutually different tones are generated. Next, a plurality of monochrome sample images are generated using this one-dimensional LUTs 413, and a catalog print in which these monochrome sample images are arranged is printed out. Once the user has selected from the catalog print a sample image having the desired tone, a monochrome image is printed out using the one-dimensional LUT 413 that corresponds to the sample image.
    Type: Application
    Filed: August 28, 2003
    Publication date: November 18, 2004
    Inventor: Seishin Yoshida
  • Black ink composition, ink set, recording method and recorded matter
    Publication number: 20040127601
    Abstract: The present invention provides a black ink composition comprising (1) water, (2) carbon black, and (3) a fine particle emulsion, wherein (A) the content of said carbon black is less than 0.4 wt %, and wherein (B) the solid content of said fine particle emulsion is 20 times or more the content of said carbon black. Also disclosed are an ink set comprising the black ink composition, a recording method using the ink set, and recorded matter obtained by the method.
    Type: Application
    Filed: November 19, 2003
    Publication date: July 1, 2004
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Tsuyoshi Sano, Seishin Yoshida
  • Ink set comprising black ink compositions, and recording method, recorded matter and ink-jet recording apparatus using the same
    Publication number: 20040035320
    Abstract: The present invention provides an ink set comprising at least two black ink compositions each containing a carbon black and a complementary colorant, wherein the at least two black ink compositions have different carbon black contents from one another, and wherein the complementary colorants of at least two of the black ink compositions are different from one another. Also disclosed are a recording method, recorded matter and a recording apparatus using the ink set.
    Type: Application
    Filed: June 24, 2003
    Publication date: February 26, 2004
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Tsuyoshi Sano, Seishin Yoshida