Patents by Inventor Suguru Komatsu

Suguru Komatsu 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).

  • Photosensitive resin composition for screen printing, photosensitive film, and screen plate
    Patent number: 9588424
    Abstract: A photosensitive resin composition is prepared by dispersing at least one of a hydrophobic polymer and a mixture of an oil-soluble photopolymerization initiator and a water-insoluble or sparingly water-soluble compound having at least one photoactive, ethylenically unsaturated group in an aqueous solution that contains both a water-soluble polymer and a diazo resin is obtained by condensing a water-soluble salt of an optionally substituted 4-diazodiphenylamine with formaldehyde in the presence of sulfuric acid and phosphoric acid. This photosensitive resin composition gives a photosensitive film having excellent stability over time and a wide exposure latitude. By adding a specific fluorine compound to the photosensitive resin composition, a screen plate has an excellent discharge performance.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: March 7, 2017
    Assignee: SUNTYPE CO., LTD.
    Inventors: Yoshio Umeda, Kenji Ota, Yuichi Ono, Taichi Okada, Yukina Kuwahara, Takafumi Somei, Setsuka Nakajima, Masataka Miyazaki, Toru Mori, Suguru Komatsu, Michihiro Iljima
  • PHOTOSENSITIVE RESIN COMPOSITION FOR SCREEN PRINTING, PHOTOSENSITIVE FILM, AND SCREEN PLATE
    Publication number: 20150212413
    Abstract: A photosenstive resin composition is prepared by dispersing at least one of a hydrophobic polymer and a mixture of an oil-soluble photopolymerization initiator and a water-insoluble or sparingly water-soluble compound having at least one photoactive, ethylenically unsaturated group in an aqueous solution that contains both a water-soluble polymer and a diazo resin is obtained by condensing a water-soluble salt of an optionally substituted 4-diazodiphenylamine with formaldehyde in the presence of sulfuric acid and phosphoric acid. This photosensitive resin composition gives a photosensitive film having excellent stability over time and a wide exposure latitude. By adding a specific fluorine compound to the photosensitive resin composition, a screen plate has an excellent discharge performance.
    Type: Application
    Filed: September 25, 2012
    Publication date: July 30, 2015
    Inventors: Yoshio Umeda, Kenji Ota, Yuichi Ono, Taichi Okada, Yukina Kuwahara, Takafumi Somei, Setsuka Nakajima, Masataka Miyazaki, Toru Mori, Suguru Komatsu, Michihiro Iijima