Patents by Inventor Kenichi Ikemoto

Kenichi Ikemoto 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 treating agents, flame retardant treating process and flame retardant treated fibers
    Patent number: 7022267
    Abstract: The flame retardant treating agent of the invention comprises a phosphorus-based compound represented by the following formula (4), for example. According to the invention, a polyester fiber woven fabric is immersed in a treatment solution containing the flame retardant treating agent and is heat treated at a prescribed temperature in order to fix the flame retardant treating agent to the polyester fiber woven fabric to obtain flame retardant treated fiber. As a result, it is possible to maintain adequate fiber cleaning durability and achieve a sufficient flame retardant property even by post-treatment, without using halogen-based compounds.
    Type: Grant
    Filed: March 13, 2002
    Date of Patent: April 4, 2006
    Assignee: Nicca Chemical Co., Ltd.
    Inventors: Hirotaka Kinoshita, Toru Makino, Takao Yamashita, Koji Midori, Kenichi Ikemoto, Hiroshi Sumitomo
  • Flame retardant treating agents, flame retardant treating process and flame retardant treated fibers
    Publication number: 20030034482
    Abstract: The flame retardant treating agent of the invention comprises a phosphorus-based compound represented by the following formula (4), for example.
    Type: Application
    Filed: August 7, 2002
    Publication date: February 20, 2003
    Inventors: Hirotaka Kinoshita, Toru Makino, Takao Yamashita, Koji Midori, Kenichi Ikemoto, Hiroshi Sumitomo
  • Process for the preparation of p-benzoquinone
    Patent number: 4973720
    Abstract: There is provided a process of producing p-benzoquinone, wherein hydroquinone and hydrogen peroxide are reacted in water, an aqueous inorganic acid solution, an inert organic polar solvent or a mixture of water with an inert organic polar solvent in the presence of a catalyst selected from the group consisting of iodine, hydrogen iodide, and iodine compounds of metals.According to the process, p-benzoquinone can be obtained from hydroquinone with the yield and the quality of the p-benzoquinone being high without requiring any special facilities, equipments and operations.
    Type: Grant
    Filed: October 4, 1988
    Date of Patent: November 27, 1990
    Assignee: Sanko Kaihatsu Kagaku Kenkyusho
    Inventors: Toranosuke Saito, Kenichi Ikemoto, Hiroki Tsunomachi, Katsuya Sakaguchi