Patents by Inventor Noritoshi Akazawa

Noritoshi Akazawa 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).

  • Sealing material sheet for solar cell modules
    Patent number: 9570642
    Abstract: Provided is a sealing material sheet for solar cell modules, which is obtained by irradiating a polyethylene resin with ionizing radiation and has high transparency, heat resistance and adhesion at the same time. This sealing material sheet for solar cell modules contains a low density polyethylene having a density of 0.900 g/cm3 or less, while having a gel fraction of from 0% to 40% (inclusive) and a degree of dispersity (Mw/Mn), which is the ratio of the weight average molecular weight (Mw) to the number average molecular weight (Mn) in terms of polystyrene, of from 2.5 to 3.5 (inclusive).
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: February 14, 2017
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Hideki Matsui, Kosuke Saeki, Yasushi Shirahige, Noritoshi Akazawa, Toshio Yoshihara
  • SEALING MATERIAL SHEET FOR SOLAR CELL MODULES
    Publication number: 20140311557
    Abstract: Provided is a sealing material sheet for solar cell modules, which is obtained by irradiating a polyethylene resin with ionizing radiation and has high transparency, heat resistance and adhesion at the same time. This sealing material sheet for solar cell modules contains a low density polyethylene having a density of 0.900 g/cm3 or less, while having a gel fraction of from 0% to 40% (inclusive) and a degree of dispersity (Mw/Mn), which is the ratio of the weight average molecular weight (Mw) to the number average molecular weight (Mn) in terms of polystyrene, of from 2.5 to 3.5 (inclusive).
    Type: Application
    Filed: December 3, 2012
    Publication date: October 23, 2014
    Inventors: Hideki Matsui, Kosuke Saeki, Yasushi Shirahige, Noritoshi Akazawa, Toshio Yoshihara