Patents by Inventor Tomohisa Ishizawa

Tomohisa Ishizawa 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).

  • Color filter for transflective type liquid crystal display
    Patent number: 8144292
    Abstract: The main object of the present invention is to provide a color filter for a transflective type color liquid crystal display which is easily produced and capable of displaying the same color tone with both of a reflecting light and a transmitting light, and shows light scattering in a reflective light region.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: March 27, 2012
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Masayuki Sugawara, Mitsuru Iida, Ryutaro Harada, Tomohisa Ishizawa
  • Color filter for transflective type liquid crystal display
    Patent number: 8130343
    Abstract: The main object of the present invention is to provide a color filter for a transflective type color liquid crystal display which is easily produced and capable of displaying the same color tone with both of a reflecting light and a transmitting light, and shows light scattering in a reflective light region.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: March 6, 2012
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Masayuki Sugawara, Mitsuru Iida, Ryutaro Harada, Tomohisa Ishizawa
  • COLOR FILTER FOR TRANSFLECTIVE TYPE LIQUID CRYSTAL DISPLAY
    Publication number: 20110194054
    Abstract: The main object of the present invention is to provide a color filter for a transflective type color liquid crystal display which is easily produced and capable of displaying the same color tone with both of a reflecting light and a transmitting light, and shows light scattering in a reflective light region.
    Type: Application
    Filed: April 18, 2011
    Publication date: August 11, 2011
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Masayuki SUGAWARA, Mitsuru IIDA, Ryutaro HARADA, Tomohisa ISHIZAWA
  • Color filter for transflective type liquid crystal display
    Patent number: 7973887
    Abstract: The main object of the present invention is to provide a color filter for a transflective type color liquid crystal display which is easily produced and capable of displaying the same color tone with both of a reflecting light and a transmitting light, and shows light scattering in a reflective light region.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: July 5, 2011
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Masayuki Sugawara, Mitsuru Iida, Ryutaro Harada, Tomohisa Ishizawa
  • Color filter for transflective type liquid crystal display
    Patent number: 7948584
    Abstract: The main object of the present invention is to provide a color filter for a transflective type color liquid crystal display which is easily produced and capable of displaying the same color tone with both of a reflecting light and a transmitting light, and shows light scattering in a reflective light region.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: May 24, 2011
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Masayuki Sugawara, Mitsuru Iida, Ryutaro Harada, Tomohisa Ishizawa
  • COLOR FILTER FOR TRANSFLECTIVE TYPE LIQUID CRYSTAL DISPLAY
    Publication number: 20100253889
    Abstract: The main object of the present invention is to provide a color filter for a transflective type color liquid crystal display which is easily produced and capable of displaying the same color tone with both of a reflecting light and a transmitting light, and shows light scattering in a reflective light region.
    Type: Application
    Filed: June 21, 2010
    Publication date: October 7, 2010
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Masayuki SUGAWARA, Mitsuru IIDA, Ryutaro HARADA, Tomohisa ISHIZAWA
  • COLOR FILTER FOR TRANSFLECTIVE TYPE LIQUID CRYSTAL DISPLAY
    Publication number: 20100253890
    Abstract: The main object of the present invention is to provide a color filter for a transflective type color liquid crystal display which is easily produced and capable of displaying the same color tone with both of a reflecting light and a transmitting light, and shows light scattering in a reflective light region.
    Type: Application
    Filed: June 21, 2010
    Publication date: October 7, 2010
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Masayuki SUGAWARA, Mitsuru IIDA, Ryutaro HARADA, Tomohisa ISHIZAWA
  • Color filter for transflective type liquid crystal display
    Patent number: 7768599
    Abstract: The main object of the present invention is to provide a color filter for a transflective type color liquid crystal display which is easily produced and capable of displaying the same color tone with both of a reflecting light and a transmitting light, and shows light scattering in a reflective light region.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: August 3, 2010
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Masayuki Sugawara, Mitsuru Iida, Ryutaro Harada, Tomohisa Ishizawa
  • COLOR FILTER FOR TRANSFLECTIVE TYPE LIQUID CRYSTAL DISPLAY
    Publication number: 20090233010
    Abstract: The main object of the present invention is to provide a color filter for a transflective type color liquid crystal display which is easily produced and capable of displaying the same color tone with both of a reflecting light and a transmitting light, and shows light scattering in a reflective light region.
    Type: Application
    Filed: March 11, 2009
    Publication date: September 17, 2009
    Inventors: Masayuki SUGAWARA, Mitsuru IIDA, Ryutaro HARADA, Tomohisa ISHIZAWA
  • Color filter for transflective type liquid crystal display
    Publication number: 20080151153
    Abstract: The main object of the present invention is to provide a color filter for a transflective type color liquid crystal display which is easily produced and capable of displaying the same color tone with both of a reflecting light and a transmitting light, and shows light scattering in a reflective light region.
    Type: Application
    Filed: December 5, 2007
    Publication date: June 26, 2008
    Inventors: Masayuki Sugawara, Mitsuru Iida, Ryutaro Harada, Tomohisa Ishizawa
  • Semi-transparent semi-reflective liquid crystal display device color filter
    Publication number: 20050174511
    Abstract: The main object of the present invention is to provide a color filter for a transflective type color liquid crystal display which is easily produced and capable of displaying the same color tone with both of a reflecting light and a transmitting light, and shows light scattering in a reflective light region.
    Type: Application
    Filed: May 8, 2003
    Publication date: August 11, 2005
    Inventors: Masayuki Sugawara, Mitsuru Iida, Ryutaro Harada, Tomohisa Ishizawa