Patents by Inventor Takeshi Munekiyo

Takeshi Munekiyo 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).

  • Cationic surfactants, process for producing the same and utilization thereof
    Patent number: 6359176
    Abstract: The present invention provides cationic surfactants derived from the amino derivatives of hexose alcohol, a reduced alcohol of hexose or reduced sugar of glucose, which is produced by converting 1-amino-hexose alcohol into a quaternary salt and by esterifying with fatty acid. The cationic surfactants have superior biodegradability.
    Type: Grant
    Filed: July 6, 2000
    Date of Patent: March 19, 2002
    Assignees: Matsumoto Yushi-Seiyaku Co., Ltd., Saka City Government
    Inventors: Masaki Nakamura, Jia-he Qian, Hiromitsu Seike, Takeshi Munekiyo
  • Fiber treatment composition
    Patent number: 5853636
    Abstract: A fiber treating composition and the emulsion of the composition, containing poly-N-vinylalkylamides and/or copolymers thereof, and polyols and/or derivatives thereof; and a synthetic filament production process with melt-spinning at 1,000 m/min or more spinning speed, wherein the above fiber treating composition is applied.
    Type: Grant
    Filed: July 29, 1997
    Date of Patent: December 29, 1998
    Assignee: Matsumoto Yushi-Seiyaku Co., Ltd.
    Inventors: Takeshi Munekiyo, Tamotsu Matsunaga, Hirofumi Ishida
  • Double-chain type sulfated compounds having acid degradability and process for producing the same
    Patent number: 5817839
    Abstract: Described herein are sulfated compounds represented by the formula (I): ##STR1## wherein X respectively represent --OSO.sub.3 M or a hydroxyl group and at least one of X represents --OSO.sub.3 M, a process for producing the sulfated compounds and a process for decomposing the sulfated compounds in an aqueous acid solution.
    Type: Grant
    Filed: November 28, 1997
    Date of Patent: October 6, 1998
    Assignees: Matsumoto Yushi-Seiyaku Co., Ltd., Osaka Municipal Government
    Inventors: Masaki Nakamura, Daisuke Ono, Jia-he Qian, Hiromitsu Seike, Shigeo Mizutani, Takeshi Munekiyo
  • Finish for polyamide yarn
    Patent number: 5472623
    Abstract: A finish for polyamide yarn comprising 0.2 to 10 weight percent of an amide of polyamine and C.sub.12 -C.sub.50 aliphatic dibasic acid, or an alkali metal salt of the said amide, functioning to prevent the oligomer in polyamide yarn from being extracted out on the polyamide yarn surface during storage so as to prevent fluffs and yarn breakage due to scum generation in down-stream process.
    Type: Grant
    Filed: October 24, 1994
    Date of Patent: December 5, 1995
    Assignee: Matsumoto Yushi-Seiyaku Co., Ltd.
    Inventors: Tetsuo Doi, Toshimoto Furuichi, Takeshi Munekiyo