Patents by Inventor Hiroaki Sugioka

Hiroaki Sugioka 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).

  • Polylactic acid composition and stretch-molded bottle molded using same
    Patent number: 10344161
    Abstract: A polylactic acid composition including polylactic acid and an ethylene resin, characterized in that the ethylene resin is selected so that a melt flow rate ratio (RMF), defined by the following equation (1): RMF=APLA/BPE (1) where APLA represents the melt flow rate of the polylactic acid measured at 210° C. and 2.16 kg, and BPE represents the melt flow rate of the ethylene resin measured at 190° C. and 2.16 kg, in a range of 0.5 to 10 is satisfied. Also disclosed is a stretch-molded bottle formed using the polylactic acid composition. The polylactic acid composition is preferably used in molding a container particularly improved in alkali resistance and environmental stress crack resistance.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: July 9, 2019
    Assignee: TOYO SEIKAN CO., LTD.
    Inventors: Takuro Ito, Hiroaki Sugioka, Takahiro Okubo, Satoru Kito, Junko Tanabe
  • POLYLACTIC ACID COMPOSITION AND STRETCH-MOLDED BOTTLE MOLDED USING SAME
    Publication number: 20170233568
    Abstract: A polylactic acid composition including polylactic acid and an ethylene resin, characterized in that the ethylene resin is selected so that a melt flow rate ratio (RMF), defined by the following equation (1): RMF=APLA/BPE (1) where APLA represents the melt flow rate of the polylactic acid measured at 210° C. and 2.16 kg, and BPE represents the melt flow rate of the ethylene resin measured at 190° C. and 2.16 kg, in a range of 0.5 to 10 is satisfied. Also disclosed is a stretch-molded bottle formed using the polylactic acid composition. The polylactic acid composition is preferably used in molding a container particularly improved in alkali resistance and environmental stress crack resistance.
    Type: Application
    Filed: August 6, 2015
    Publication date: August 17, 2017
    Applicant: TOYO SEIKAN CO., LTD.
    Inventors: Takuro ITO, Hiroaki SUGIOKA, Takahiro OKUBO, Satoru KITO, Junko TANABE
  • Biodegradable stretch mold container having excellent heat resistance
    Patent number: 8012553
    Abstract: A stretch mold container of the present invention is obtained by draw-forming a resin composition containing a poly-L-lactic acid (A) and a poly-D-lactic acid (B) at a molar ratio A:B in a range of 95:5 to 60:40, and has an amount of heat shrinkage of 5.0% or less under heat treatment conditions of 65° C.×24 hours. Despite of being made from the polylactic acids, the stretch mold container exhibits excellent heat resistance.
    Type: Grant
    Filed: May 8, 2007
    Date of Patent: September 6, 2011
    Assignee: Toyo Seikan Kaisha, Ltd.
    Inventors: Takurou Ito, Hiroki Mori, Hiroaki Sugioka
  • BIODEGRADABLE STRETCH MOLD CONTAINER HAVING EXCELLENT HEAT RESISTANCE
    Publication number: 20090186178
    Abstract: A stretch mold container of the present invention is obtained by draw-forming a resin composition containing a poly-L-lactic acid (A) and a poly-D-lactic acid (B) at a molar ratio A:B in a range of 95:5 to 60:40, and has an amount of heat shrinkage of 5.0% or less under heat treatment conditions of 65° C.×24 hours. Despite of being made from the polylactic acids, the stretch mold container exhibits excellent heat resistance.
    Type: Application
    Filed: May 8, 2007
    Publication date: July 23, 2009
    Applicant: TOYO SEIKAN KAISHA,LTD.
    Inventors: Takurou Ito, Hiroki Mori, Hiroaki Sugioka