Patents by Inventor Masahito Kogure
Masahito Kogure 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).
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Patent number: 9714408Abstract: In a cell culture in a sealed cell culture container, gradual deterioration of culture environment is prevented.Type: GrantFiled: April 24, 2008Date of Patent: July 25, 2017Assignee: Toyo Seikan Group Holdings, LTD.Inventors: Satoshi Tanaka, Yoichi Ishizaki, Ryo Suenaga, Yoriko Tokita, Masahito Kogure
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Patent number: 9441193Abstract: By maintaining the cell density during culture at an appropriate level and eliminating the procedure of transferring cells from a container to another container when a large amount of cells are cultured, damage on cells can be reduced, risk of contamination can be lowered, labor saving can be attained and automation can be attained. A cell culture apparatus including: a culture container 11 formed of a soft packing material and having an enclosure part 11-1 in which a culture medium and/or cells being cultured are enclosed is placed; a container table 12 on which the culture container 11 is placed; a roller 13 which is placed on the upper surface of the culture container 11 and divides the enclosure part 11-1 into two or more chambers; and a driving means 15 which relatively moves the roller 13 or the culture container 11, thereby to change the volume of the culture part 11-11 in the enclosure part 11-1 in which a culture medium or cells being cultured are enclosed.Type: GrantFiled: April 25, 2008Date of Patent: September 13, 2016Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Satoshi Tanaka, Yoichi Ishizaki, Ryo Suenaga, Yoriko Tokita, Masahito Kogure
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Patent number: 9284432Abstract: A method for degrading a readily degradable resin composition comprising an aliphatic polyester (A) which is biodegradable, and an aliphatic polyester (B?) which releases an acid upon hydrolysis and which is biodegradable at a higher degradation rate than that of the aliphatic polyester (A), the method comprising degrading the readily degradable resin composition in an enzyme reaction liquid containing a degradation enzyme, and an acid neutralizing agent incompatible with the enzyme reaction liquid.Type: GrantFiled: September 19, 2014Date of Patent: March 15, 2016Assignee: TOYO SEIKAN KAISHA, LTD.Inventors: Seishi Yoshikawa, Tsutaki Katayama, Masahito Kogure
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Publication number: 20150010974Abstract: A method for degrading a readily degradable resin composition comprising an aliphatic polyester (A) which is biodegradable, and an aliphatic polyester (B?) which releases an acid upon hydrolysis and which is biodegradable at a higher degradation rate than that of the aliphatic polyester (A), the method comprising degrading the readily degradable resin composition in an enzyme reaction liquid containing a degradation enzyme, and an acid neutralizing agent incompatible with the enzyme reaction liquid.Type: ApplicationFiled: September 19, 2014Publication date: January 8, 2015Inventors: Seishi Yoshikawa, Tsutaki Katayama, Masahito Kogure
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Patent number: 8846355Abstract: A method for degrading a readily degradable resin composition comprising an aliphatic polyester (A) which is biodegradable, and an aliphatic polyester (B?) which releases an acid upon hydrolysis and which is biodegradable at a higher degradation rate than that of the aliphatic polyester (A), the method comprising degrading the readily degradable resin composition in an enzyme reaction liquid containing a degradation enzyme, and an acid neutralizing agent incompatible with the enzyme reaction liquid.Type: GrantFiled: June 27, 2013Date of Patent: September 30, 2014Assignee: Toyo Seikan Kaisha, Ltd.Inventors: Seishi Yoshikawa, Tsutaki Katayama, Masahito Kogure
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Publication number: 20130288322Abstract: A method for degrading a readily degradable resin composition comprising an aliphatic polyester (A) which is biodegradable, and an aliphatic polyester (B?) which releases an acid upon hydrolysis and which is biodegradable at a higher degradation rate than that of the aliphatic polyester (A), the method comprising degrading the readily degradable resin composition in an enzyme reaction liquid containing a degradation enzyme, and an acid neutralizing agent incompatible with the enzyme reaction liquid.Type: ApplicationFiled: June 27, 2013Publication date: October 31, 2013Applicant: TOYO SEIKAN KAISHA, LTD.Inventors: Seishi Yoshikawa, Tsutaki Katayama, Masahito Kogure
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Publication number: 20130274373Abstract: The present invention is a biodegradable resin composition comprising a sparingly hydrolyzing biodegradable resin (A) and an ester decomposition promoter (B), the ester decomposition promoter (B) being a copolymerized polyester that contains a segment (X) of a sparingly hydrolyzing polyester and a segment (Y) of an easily hydrolyzing polyester at a weight ratio of 10/90<X/Y<75/25. The biodegradable resin composition of the present invention features excellent biodegradability as well as excellent transparency.Type: ApplicationFiled: January 13, 2012Publication date: October 17, 2013Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Seishi Yoshikawa, Tsutaki Katayama, Masahito Kogure
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Patent number: 8501445Abstract: An object of the present invention is to provide a method for efficiently producing an oligomer or a monomer by degrading a biodegradable resin using an enzyme, so that the oligomer or the monomer can be recovered. The present invention provides a method for producing an oligomer and/or a monomer by degrading a biodegradable resin in a degradation liquid containing a biodegradation enzyme, a buffer agent, an organic solvent, and water. In this method, the SP value of the organic solvent is less than 8.5 or more than 11.5, and the percentage content of the organic solvent (by volume) in the degradation liquid is higher than 1% and lower than 15%. In the method for producing an oligomer or a monomer, the degradation percentage of the biodegradable resin is low, and deposits of aggregates of the oligomer and/or the monomer are few, so that the recovery percentage is high.Type: GrantFiled: October 27, 2009Date of Patent: August 6, 2013Assignee: Toyo Seikan Kaisha, Ltd.Inventors: Seishi Yoshikawa, Tsutaki Katayama, Masahito Kogure
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Publication number: 20130184415Abstract: [Problem] To provide a biodegradable resin composition which permits the biodegradable resin to quickly decompose. [Means for Solution] The biodegradable resin is blended with a polyglycolic acid and an ester decomposition promoter of an inorganic particulate material that promotes the hydrolysis of the polyglycol.Type: ApplicationFiled: October 4, 2011Publication date: July 18, 2013Applicants: KUREHA CORPORATION, TOYO SEIKAN KAISHA, LTD.Inventors: Seishi Yoshikawa, Tsutaki Katayama, Masahito Kogure, Kazuyuki Yamane
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Patent number: 8465817Abstract: A polyester container furnished with a flange part having mechanical strength, transparency, and heat resistance through orientational crystallization, which polyester container exhibits low-temperature heat sealability, is provided by forming a projecting portion at an upper surface of the crystallized flange part, the projecting portion at at least a heat-sealing-face constituting region rendered amorphous or of low crystallinity. Further, in order to suppress the unevenness of the strength of sealing with a cover member and stably attain the high sealability, the projecting portion is deformed at the time of heat sealing with the cover member so as to form a resin piece protruding toward the interior of the container while being substantially appressed against the upper surface of an opening rim part. The formed resin piece couples with a sealant layer of the cover member.Type: GrantFiled: November 4, 2004Date of Patent: June 18, 2013Assignee: Toyo Seikan Kaisha, Ltd.Inventors: Yasushi Hatano, Tsutomu Iwasaki, Masahito Kogure, Hideo Kawasaki, Hisao Iwamotoi
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Patent number: 8048502Abstract: Disclosed is a readily degradable resin composition having excellent biodegradability. Specifically disclosed is a readily degradable resin composition comprising: an aliphatic polyester (A) which has biodegradability; and an aliphatic polyester (B) which has a solution viscosity (? inh) of 0.25 dl/g or less as measured in a mixed solvent composed of m-chlorophenol and 1,2,4-trichlorobenzene at a weight-based ratio of 4:1 at a concentration of 0.4 g/dl and at a temperature of 30° C. and a melt viscosity of 50 Pa S or less as measured at 190° C. at a shear rate of 1 rad/s and is capable of biodegraded at a more rapid degradation rate than the aliphatic polyester (A). Also disclosed is a readily degradable resin composition comprising: an aliphatic polyester (A) which has biodegradability; and an aliphatic polyester (B?) which, when hydrolyzed, can release an acid showing a pH value of 2.0 or less when dissolved in water at a concentration of 0.Type: GrantFiled: September 26, 2007Date of Patent: November 1, 2011Assignee: Toyo Seikan Kaisha, Ltd.Inventors: Seishi Yoshikawa, Mitsuhiro Yoshida, Masahito Kogure
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Publication number: 20110201069Abstract: An object of the present invention is to provide a method for efficiently producing an oligomer or a monomer by degrading a biodegradable resin using an enzyme, so that the oligomer or the monomer can be recovered. The present invention provides a method for producing an oligomer and/or a monomer by degrading a biodegradable resin in a degradation liquid containing a biodegradation enzyme, a buffer agent, an organic solvent, and water. In this method, the SP value of the organic solvent is less than 8.5 or more than 11.5, and the percentage content of the organic solvent (by volume) in the degradation liquid is higher than 1% and lower than 15%. In the method for producing an oligomer or a monomer, the degradation percentage of the biodegradable resin is low, and deposits of aggregates of the oligomer and/or the monomer are few, so that the recovery percentage is high.Type: ApplicationFiled: October 27, 2009Publication date: August 18, 2011Applicant: TOYO SEIKAN KAISHA LTD.Inventors: Seishi Yoshikawa, Tsutaki Katayama, Masahito Kogure
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Publication number: 20100086718Abstract: Disclosed is a readily degradable resin composition having excellent biodegradability. Specifically disclosed is a readily degradable resin composition comprising: an aliphatic polyester (A) which has biodegradability; and an aliphatic polyester (B) which has a solution viscosity (? inh) of 0.25 dl/g or less as measured in a mixed solvent composed of m-chlorophenol and 1,2,4-trichlorobenzene at a weight-based ratio of 4:1 at a concentration of 0.4 g/dl and at a temperature of 30° C. and a melt viscosity of 50 Pa S or less as measured at 190° C. at a shear rate of 1 rad/s and is capable of biodegraded at a more rapid degradation rate than the aliphatic polyester (A). Also disclosed is a readily degradable resin composition comprising: an aliphatic polyester (A) which has biodegradability; and an aliphatic polyester (B?) which, when hydrolyzed, can release an acid showing a pH value of 2.0 or less when dissolved in water at a concentration of 0.Type: ApplicationFiled: September 26, 2007Publication date: April 8, 2010Applicant: TOYO SEIKAN KAISHA, LTD.Inventors: Seishi Yoshikawa, Mitsuhiro Yoshida, Masahito Kogure
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Publication number: 20100075406Abstract: By maintaining the cell density during culture at an appropriate level and eliminating the procedure of transferring cells from a container to another container when a large amount of cells are cultured, damage on cells can be reduced, risk of contamination can be lowered, labor saving can be attained and automation can be attained. A cell culture apparatus including: a culture container 11 formed of a soft packing material and having an enclosure part 11-1 in which a culture medium and/or cells being cultured are enclosed is placed; a container table 12 on which the culture container 11 is placed; a roller 13 which is placed on the upper surface of the culture container 11 and divides the enclosure part 11-1 into two or more chambers; and a driving means 15 which relatively moves the roller 13 or the culture container 11, thereby to change the volume of the culture part 11-11 in the enclosure part 11-1 in which a culture medium or cells being cultured are enclosed.Type: ApplicationFiled: April 25, 2008Publication date: March 25, 2010Applicant: Toyo Seikan KaishaInventors: Satoshi Tanaka, Yoichi Ishizaki, Ryo Suenaga, Yoriko Tokita, Masahito Kogure
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Publication number: 20100062530Abstract: In a cell culture in a sealed cell culture container, gradual deterioration of culture environment is prevented.Type: ApplicationFiled: April 24, 2008Publication date: March 11, 2010Applicant: Toyo Seikan KaishaInventors: Satoshi Tanaka, Yoichi Ishizaki, Ryo Suenaga, Yoriko Tokita, Masahito Kogure
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Patent number: 7655179Abstract: A container with a flange having excellent heat resistance and impact resistance in the lower part of the barrel portion and having excellent transparency in the wall despite the container is formed by molding an amorphous polyester sheet, and a method of producing the same.Type: GrantFiled: March 4, 2005Date of Patent: February 2, 2010Assignee: Toyo Seikan Kaisha, Ltd.Inventors: Tsutomu Iwasaki, Masahito Kogure, Hisao Iwamoto, Ryo Suenaga
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Patent number: 7582249Abstract: In a method for manufacturing a thermoplastic resin vessel, in which a cup-shaped vessel is thermally formed from a thermoplastic resin sheet by a plug, the method including the steps of: pre-forming a portion of the thermoplastic resin sheet corresponding to an orifice portion or a flange portion of the cup-shaped vessel; and clamping the pre-formed portion of the thermoplastic resin sheet to accomplish the forming. According to the manufacturing method, thickening of a vessel bottom part and warpage of the flange portion can be improved.Type: GrantFiled: July 16, 2003Date of Patent: September 1, 2009Assignee: Toyo Seikan Kaisha Ltd.Inventors: Tsutomu Iwasaki, Masahito Kogure, Hideo Kawasaki, Yasushi Hatano
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Publication number: 20070082151Abstract: A polyester container furnished with a flange part having mechanical strength, transparency, and heat resistance through orientational crystallization, which polyester container exhibits low-temperature heat sealability, is provided by forming a projecting portion at an upper surface of the crystallized flange part, the projecting portion at at least a heat-sealing-face constituting region rendered amorphous or of low crystallinity. Further, in order to suppress the unevenness of the strength of sealing with a cover member and stably attain the high sealability, the projecting portion is deformed at the time of heat sealing with the cover member so as to form a resin piece protruding toward the interior of the container while being substantially appressed against the upper surface of an opening rim part. The formed resin piece couples with a sealant layer of the cover member.Type: ApplicationFiled: November 4, 2004Publication date: April 12, 2007Applicant: TOYO SEIKAN KAISHA LTD.Inventors: Yasushi Hatano, Tsutomu Iwasaki, Masahito Kogure, Hideo Kawasaki, Hisao Iwamoto
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Publication number: 20060151924Abstract: In a method for manufacturing a thermoplastic resin vessel, in which a cup-shaped vessel is thermally formed from a thermoplastic resin sheet by a plug, the method including the steps of: pre-forming a portion of the thermoplastic resin sheet corresponding to an orifice portion or a flange portion of the cup-shaped vessel; and clamping the pre-formed portion of the thermoplastic resin sheet to accomplish the forming. According to the manufacturing method, thickening of a vessel bottom part and warpage of the flange portion can be improved.Type: ApplicationFiled: July 16, 2003Publication date: July 13, 2006Applicant: TOYO SEIKAN KAISHA, LTDInventors: Tsutomu Iwasaki, Masahito Kogure, Hideo Kawasaki, Yasushi Hatano
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Patent number: 6964796Abstract: A thermoplastic resin composition containing an oxygen-absorbing agent, wherein a resin matrix of the thermoplastic resin composition is substantially non-compatible and is composed of a blend of thermoplastic resins or elastomers, and the non-compatible thermoplastic resins and elastomers are present as a non-uniformly distributed structure in the resin matrix. The packaging container or cap of this invention suppresses the lowering of flavor retention incident to the dissolving out of the oxygen absorbing agent or its oxidation product even after retorting sterilization. The preservability of the contents and flavor retention can be achieved for a long period of time. According to a preferred embodiment, the oxygen absorbing speed can be increased. After storage for a long time, or after heat sterilization, a rugged state does not occur. There can be formed the oxygen-absorbing resin composition and the packaging container having excellent outer appearance.Type: GrantFiled: May 5, 1999Date of Patent: November 15, 2005Assignee: Toyo Seikan Kaisha, Ltd.Inventors: Masayasu Koyama, Masahito Kogure, Yasuhiro Oda, Yoshitsugu Maruhashi, Toshio Goryoda, Shogo Mukuno