Patents by Inventor Kunihiro Oshima

Kunihiro Oshima 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).

  • FLAME-RETARDANT PROCESSING METHOD AND FLAME-RETARDED CELLULOSIC FIBER MATERIAL
    Publication number: 20100261862
    Abstract: A flame-retardant processing method, containing: a radiation processing step of irradiating a cellulosic fiber material with radiation; a phosphorus processing step of adding a radically polymerizable phosphorus-containing compound to the cellulosic fiber material; and an amine processing step of adding an amine compound to the cellulosic fiber material, and a flame-retarded cellulosic fiber material prepared by the method above.
    Type: Application
    Filed: January 29, 2009
    Publication date: October 14, 2010
    Applicant: KURASHIKI BOSEKI KABUSHIKI KAISHA
    Inventors: Minoru Sugiyama, Ichiro Ozawa, Hiroaki Inoue, Yasushi Tomotani, Susumu Katsuen, Kunihiro Oshima
  • Animal fiber superior in shrink proofing and method for preparation thereof
    Patent number: 6969409
    Abstract: The present invention provides an animal fibers having improved shrink proofing and pilling resistance properties and method for preparation thereof. An animal fiber having excellent shrink proofing and pilling resistance and retaining its original water repellency is also provided. A method of treating animal fiber in which a surface layer part of animal fiber is primary-oxidized in advance with an oxidizer, and aqueous treatment liquid containing ozone in the form of ultrafine bubbles of 5? or less is allowed to collide against the fiber by blowing the liquid on the fiber in the aqueous treatment solution, and then, the fiber is treated with a reducing agent. Particularly, the above-mentioned method for treating animal fiber in which ultrafine bubbles of ozone are formed by using a line mixer. The method in which an apparatus which collects the ultrafine ozone bubbles in aqueous treatment liquid on the fiber is used so that the bubbles are not scattered out of a treatment reaction bowl.
    Type: Grant
    Filed: July 11, 2001
    Date of Patent: November 29, 2005
    Assignee: Kurabo Industries Ltd.
    Inventors: Hisashi Ichimura, Ryo Umehara, Tadashi Karakawa, Kunihiro Oshima, Kazuhiro Nakase
  • Animal fiber superior in shrink proofing and method for preparation thereof
    Publication number: 20020032930
    Abstract: The present invention provides an animal fibers having improved shrink proofing and pilling resistance properties and method for preparation thereof.
    Type: Application
    Filed: July 11, 2001
    Publication date: March 21, 2002
    Inventors: Hisashi Ichimura, Ryo Umehara, Tadashi Karakawa, Kunihiro Oshima, Kazuhiro Nakase
  • Porous polymer particles and preparation method thereof
    Patent number: 4954399
    Abstract: The present invention provides the polymer particles prepared by polymerizing monomer components which comprise as at least a part of polymerizable components a monomer of the formula (I): ##STR1## , wherein R is hydrogen atom or methyl group, n is a number of from 0 to 30 and m is a number of from 0 to 30 provided that m+n.gtoreq.1 and a process for preparing the polymer particles.
    Type: Grant
    Filed: October 2, 1989
    Date of Patent: September 4, 1990
    Assignee: Kurashiki Boseki Kabushiki Kaisha
    Inventors: Sumio Tani, Kazuhiko Kogoh, Yuri Nozaki, Kunihiro Oshima