Patents by Inventor Isao Nakamae

Isao Nakamae 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).

  • Granular reactive dye composition and production process thereof
    Patent number: 5437688
    Abstract: A granular reactive dye composition comprising a water-soluble reactive dye and at least one granulating auxiliary agent selected from the group consisting of compounds of the following formula (3), ##STR1## wherein R is --C.sub.s H.sub.2s+1, in which s is an integer of 5 to 20 and wherein the content of the granulating auxiliary agent is 5 parts by weight or less per 100 parts by weight of the reactive dye.
    Type: Grant
    Filed: December 14, 1993
    Date of Patent: August 1, 1995
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Noriaki Yamauchi, Nobuaki Kawamura, Tatuo Miura, Shuhei Hashizume, Isao Nakamae, Kazumi Yoshigoe, Hiroyuki Suzuki, Iwao Minami
  • Process for granulating 2,2,6,6-tetramethylpiperidine-containing light stabilizer
    Patent number: 5290495
    Abstract: A process for producing granules of a 2,2,6,6-tetramethylpiperidine-containing light stabilizer, which comprises mixing a 2,2,6,6-tetramethylpiperidine-containing light stabilizer having a melting point of not less than 60.degree. C. with a lubricant selected from the group consisting of water and an aqueous solution of an alcohol having 1 to 4 carbon atoms, and granulating the resultant mixture while pressure is applied thereto. The granular light stabilizer product has low dusting property and excellent free-flowing property.
    Type: Grant
    Filed: September 12, 1991
    Date of Patent: March 1, 1994
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Norimitsu Numadate, Isao Nakamae, Hiroki Yamamoto, Manji Sasaki
  • Granular type reactive dye compositions and methods for dyeing and printing cellulose fibers using the same
    Patent number: 5259850
    Abstract: A granular type reactive dye composition containing a reactive dye, an inorganic salt and water, the water content being from 4.5 through 15% by weight and the inorganic salt content being 20% by weight or less, both based on the weight of the composition, which is excellent in storage stability, compatibility with water and hot water, and reproducibility, when used for dyeing or printing cellulose fibers.
    Type: Grant
    Filed: August 16, 1991
    Date of Patent: November 9, 1993
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Naoki Harada, Noriaki Yamauchi, Syuhei Hashizume, Yutaka Kayane, Kazumi Yoshigoe, Isao Nakamae