Patents by Inventor Katsushi Tomita

Katsushi Tomita 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).

  • Publication number: 20110005676
    Abstract: Disclosed is a wiper which is which is highly retentive of water, soft to the touch, and improved in sheet strength and a method for manufacturing the same. An interlining layer contains pulp fibers, first and second surfacing layers contain non-fusible fibers, and a reinforcing layer contains fusible fibers and rayon fibers. The fusible fibers are fusion-bonded but the non-fusible fibers remain unfused. Sheet surfaces are free from the fusible fibers.
    Type: Application
    Filed: September 20, 2010
    Publication date: January 13, 2011
    Applicant: UNI-CHARM CORPORATION
    Inventors: Takeshi Bando, Daisuke Miyake, Katsushi Tomita, Hideyuki Ishikawa
  • Patent number: 7820277
    Abstract: Disclosed is a wiper which is which is highly retentive of water, soft to the touch, and improved in sheet strength and a method for manufacturing the same. An interlining layer contains pulp fibers, first and second surfacing layers contain non-fusible fibers, and a reinforcing layer contains fusible fibers and rayon fibers. The fusible fibers are fusion-bonded but the non-fusible fibers remain unfused. Sheet surfaces are free from the fusible fibers.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: October 26, 2010
    Assignee: Uni-Charm Corporation
    Inventors: Takeshi Bando, Daisuke Miyake, Katsushi Tomita, Hideyuki Ishikawa
  • Publication number: 20050221070
    Abstract: Disclosed is a wiper which is which is highly retentive of water, soft to the touch, and improved in sheet strength and a method for manufacturing the same. An interlining layer contains pulp fibers, first and second surfacing layers contain non-fusible fibers, and a reinforcing layer contains fusible fibers and rayon fibers. The fusible fibers are fusion-bonded but the non-fusible fibers remain unfused. Sheet surfaces are free from the fusible fibers.
    Type: Application
    Filed: March 17, 2005
    Publication date: October 6, 2005
    Applicant: Uni-Charm Corporation
    Inventors: Takeshi Bando, Daisuke Miyake, Katsushi Tomita, Hideyuki Ishikawa
  • Patent number: 6365795
    Abstract: There is disclosed an absorptive article including a liquid-permeable surface material on a liquid receiving side. The surface material is formed of a nonwoven fabric including an upper layer to face the skin of a wearer, and a lower layer positioned under the upper layer. At least the fibers forming the upper layer contain titanium oxide. The fibers forming the lower layer have a lower elongation percentage and a higher tensile strength, as measured according to the JIS L 1013, than those of the fibers forming the upper layer.
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: April 2, 2002
    Assignee: Uni-Charm Corporation
    Inventors: Makoto Suekane, Satoshi Mizutani, Katsushi Tomita, Etsuko Tagami
  • Patent number: 5618610
    Abstract: Here is disclosed an improved nonwoven fabric wiper obtained by a method comprising steps of forming a laminate from a web of thermally shrinkable hydrophobic synthetic fibers and a web of hydrophilic fibers put one upon another, jetting high pressure water onto the laminate supported on a supporting roll provided on its peripheral surface with a plurality of fine projections as well as a plurality of drainage apertures, causing the fibers to be entangled or intertwined and rearranged and thereby forming a nonwoven fabric having uneven fiber distribution densities, and heating the nonwoven fabric to crimp the synthetic fibers so that only portions of relatively high fiber density may bulge.
    Type: Grant
    Filed: August 29, 1995
    Date of Patent: April 8, 1997
    Assignee: Uni-Charm Corporation
    Inventors: Katsushi Tomita, Masahiko Shikatani, Hiroo Hayashi, Mitsuhiro Wada