Patents by Inventor Ryohei Enomoto

Ryohei Enomoto 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).

  • HARD COAT FILM, PRODUCTION METHOD OF THE SAME, POLARIZING PLATE AND DISPLAY
    Publication number: 20070048461
    Abstract: To provide hard coat films having high hardness, and uniform durability against scratching and high flatness even with a small thickness and a large width, and to provide a method producing the same. The hard coat films are provided with an actinic ray curable resin on a cellulose ester film thereof, the cellulose ester film containing a UV absorber and 2 or more plasticizers. One of the plasticizers is a polyalcohol ester type and the other one is a non-phosphate ester type. The cellulose ester film is produced by biaxially stretching of a cellulose ester film with a total acyl substitution degree ranging from 2.6 to 2.9, a number-average molecular weight ranging from 80,000 to 200,000, and a ratio of a weight-average molecular weight to a number-average molecular weight ranging from 1.4 to 3.0.
    Type: Application
    Filed: October 20, 2006
    Publication date: March 1, 2007
    Applicant: KONICA MINOLTA OPTO, INC.
    Inventors: Koji NAKAJIMA, Takashi MURAKAMI, Ryohei ENOMOTO
  • Hard coat film, production method of the same, polarizing plate and display
    Patent number: 7125591
    Abstract: To provide hard coat films having high hardness, and uniform durability against scratching and high flatness even with a small thickness and a large width, and to provide a method producing the same. The hard coat films are provided with an actinic ray curable resin on a cellulose ester film thereof, the cellulose ester film containing a UV absorber and 2 or more plasticizers. One of the plasticizers is a polyalcohol ester type and the other one is a non-phosphate ester type. The cellulose ester film is produced by biaxially stretching of a cellulose ester film with a total acyl substitution degree ranging from 2.6 to 2.9, a number average molecular weight ranging from 80,000 to 200,000, and a ratio of a weight-average molecular weight to a number average molecular weight ranging from 1.4 to 3.0.
    Type: Grant
    Filed: May 28, 2004
    Date of Patent: October 24, 2006
    Assignee: Konica Minolta Opto, Inc.
    Inventors: Koji Nakajima, Takashi Murakami, Ryohei Enomoto
  • Hard coat film, production method of the same, polarizing plate and display
    Publication number: 20040247889
    Abstract: To provide hard coat films having high hardness, and uniform durability against scratching and high flatness even with a small thickness and a large width, and to provide a method producing the same. The hard coat films are provided with an actinic ray curable resin on a cellulose ester film thereof, the cellulose ester film containing a UV absorber and 2 or more plasticizers. One of the plasticizers is a polyalcohol ester type and the other one is a non-phosphate ester type. The cellulose ester film is produced by biaxially stretching of a cellulose ester film with a total acyl substitution degree ranging from 2.6 to 2.9, a number-average molecular weight ranging from 80,000 to 200,000, and a ratio of a weight-average molecular weight to a number-average molecular weight ranging from 1.4 to 3.0.
    Type: Application
    Filed: May 28, 2004
    Publication date: December 9, 2004
    Applicant: Konica Minolta Opto, Inc.
    Inventors: Koji Nakajima, Takashi Murakami, Ryohei Enomoto