Patents by Inventor Syunichi Uchimura

Syunichi Uchimura 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).

  • Patent number: 5922457
    Abstract: The matte finished coated paper is a paper web having a smoothness of 0.5 to 20 seconds, when measured pursuant to JIS P8119, and a surface roughness Ra of 3.2 to 7.0 .mu.m, when measured pursuant to JIS B0601, provided with a surface coating on at least one side containing polyolefin resin particles, an adhesive and a pigment. The pigment includes porous particles of organic pigment material and calcium carbonate particles. The porous particles of organic pigment material have an oil absorbancy of 80 to 400 ml/100 g when measured pursuant to JIS K5101, each calcium carbonate particle has an average particle diameter of 1.0 to 10 .mu.m and each polyolefin resin particle has an average diameter of 8 to 30 .mu.m. The surface coating has a degree of gloss in a range of from 1 to 10%, when measured pursuant to JIS P8142 at 75.degree. C., a smoothness in a range of from 1 to 25 seconds, when measured pursuant to JIS P8119, and a surface roughness Ra in a range of from 2.0 .mu.m to 6.0 .mu.
    Type: Grant
    Filed: October 23, 1997
    Date of Patent: July 13, 1999
    Assignee: Oji Paper Co., Ltd.
    Inventors: Kenji Yanagisawa, Syunichi Uchimura, Terunobu Fukui