Patents by Inventor Daisuke Yasumura

Daisuke Yasumura 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: 7297307
    Abstract: The present invention relates to a method of producing an absorbent member comprising feeding a superabsorbent polyer and pul fiber both in the form of a dispersion in an air stream, depositing the superabsorbent polymer and the pulp fiber in a recess by suction through a plurality of suction holes provided in the bottom of the recess and releasing the deposited aggregate from the recess. The bottom of the recess (50) has a first suction region having an open area ratio R1 of 40 to 80% and a second suction region having an open area ratio R2 of 2 to 20% with the ratio of R1 to R2 ranging from 70/30 to 99/1. The superabsorbent polymer and the pulp fiber are deposited on both the first and the second suction regions. The present invention also relates to an absorbent member comprising a superabsorbent polymer and pulp fiber.
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: November 20, 2007
    Assignee: Kao Corporation
    Inventors: Daisuke Yasumura, Masato Oshima
  • Publication number: 20070244453
    Abstract: The present invention relates to a method of producing an absorbent member comprising feeding a superabsorbent polyer and pul fiber both in the form of a dispersion in an air stream, depositing the superabsorbent polymer and the pulp fiber in a recess by suction through a plurality of suction holes provided in the bottom of the recess and releasing the deposited aggregate from the recess. The bottom of the recess (50) has a first suction region having an open area ratio R1 of 40 to 80% and a second suction region have an open area ratio R2 of 2 to 20% with the ratio of R1 to R2 ranging from 70/30 to 99/1. The superabsorbent polymer and the pulp fiber are deposited on both the first and the second suction regions. The present invention also relates to an absorbent member comprising a superabsorbent polymer and pulp fiber.
    Type: Application
    Filed: June 15, 2007
    Publication date: October 18, 2007
    Inventors: Daisuke YASUMURA, Masato Oshima
  • Publication number: 20030236510
    Abstract: The present invention relates to a method of producing an absorbent member comprising feeding a superabsorbent polyer and pul fiber both in the form of a dispersion in an air stream, depositing the superabsorbent polymer and the pulp fiber in a recess by suction through a plurality of suction holes provided in the bottom of the recess and releasing the deposited aggregate from the recess. The bottom of the recess (50) has a first suction region having an open area ratio R1 of 40 to 80% and a second suction region having an open area ratio R2 of 2 to 20% with the ratio of R1 to R2 ranging from 70/30 to 99/1. The superabsorbent polymer and the pulp fiber are deposited on both the first and the second suction regions.
    Type: Application
    Filed: June 9, 2003
    Publication date: December 25, 2003
    Inventors: Daisuke Yasumura, Masato Oshima
  • Patent number: 5183750
    Abstract: A process for the prodution of phosphatiolic acid is carried out by treating phospholipids with an enzyme capable of hydrolyzing a phospholipid into phosphatidic acid and a nitrogen-containing base and another enzyme capable of hydrolyzing a phospholipid into a diglyceride and a phosphoryl base. Further, another process for the production of phosphatidic acid is carried out by treating phospholipids with a treatment product of an oilseed is disclosed.
    Type: Grant
    Filed: May 25, 1990
    Date of Patent: February 2, 1993
    Assignee: Kao Corporation
    Inventors: Tsutomu Nishide, Daisuke Yasumura, Yoshinobu Nakajima, Akiko Onodera, Takuji Yasukawa, Hirokazu Kokumai, Tomoshige Umeda, Seiji Nomura, Hideki Mori
  • Patent number: 4976984
    Abstract: An edible oil and fat composition comprises a phospholipid and a glyceride mixture comprising 5 to 100 percent by weight of a diglyceride. The phospholipid is a decomposition product of natural lecithin. It is stable and suitable for food and a cooking oil.
    Type: Grant
    Filed: March 22, 1989
    Date of Patent: December 11, 1990
    Assignee: Kao Corporation
    Inventors: Takuji Yasukawa, Daisuke Yasumura, Kimiko Yamasawa, Yukitaka Tanaka, Tsutomu Nishide
  • Patent number: 4849019
    Abstract: A pan-releasing oil composition comprises fats and oils and 0.1 to 10 percent by weight, based on the entire composition, of a phospholipid mixture in which the sum total of contents of phosphatidic acid and/or a salt of phosphatidic acid and lysophosphatidic acid and/or a salt of lysophosphatidic acid ranges from 15 to 100 percent by weight based on the weight of the total phospholipids.
    Type: Grant
    Filed: April 1, 1988
    Date of Patent: July 18, 1989
    Assignee: Kao Corporation
    Inventors: Takuji Yasukawa, Tsutomu Nishide, Daisuke Yasumura