Patents by Inventor Shun Ogawa
Shun Ogawa 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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Publication number: 20210379692Abstract: A manufacturing method of a multilayer syringe barrel is provided and includes: a finish cutting a remaining gate of a nozzle portion of a multilayer syringe barrel that is injection-molded from a nozzle tip, with a cutting blade of an ultrasonic cutting apparatus including a mechanism for suppressing abnormal vibration; and irradiating a laser beam to a corner portion of the nozzle portion, the corner portion being formed during the finish cutting.Type: ApplicationFiled: August 14, 2019Publication date: December 9, 2021Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Shun OGAWA, Shota ARAKAWA
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Patent number: 11136569Abstract: Provided are a novel isoamylase improved in optimum temperature, and more specifically, improved in heat resistance, and a process for producing the isoamylase. An isoamylase having at least one amino acid mutation selected from the group consisting of D268A, M277I, A549P, A554P and A580T in an isoamylase consisting of an amino acid sequence represented by SEQ ID No: 1 or an isoamylase consisting of the amino acid sequence represented by SEQ ID No: 1 and having deletion, substitution or insertion of one to several amino acid residues.Type: GrantFiled: May 26, 2017Date of Patent: October 5, 2021Assignee: GODO SHUSEI CO., LTD.Inventors: Masahiro Baba, Ryoko Sano, Shun Ogawa, Hirofumi Horiguchi, Jun Yoshikawa
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Publication number: 20200291371Abstract: Provided are a novel isoamylase improved in optimum temperature, and more specifically, improved in heat resistance, and a process for producing the isoamylase. An isoamylase having at least one amino acid mutation selected from the group consisting of D268A, M277I, A549P, A554P and A580T in an isoamylase consisting of an amino acid sequence represented by SEQ ID No: 1 or an isoamylase consisting of the amino acid sequence represented by SEQ ID No: 1 and having deletion, substitution or insertion of one to several amino acid residues.Type: ApplicationFiled: May 26, 2017Publication date: September 17, 2020Applicant: GODO SHUSEI CO., LTD.Inventors: Masahiro BABA, Ryoko SANO, Shun OGAWA, Hirofumi HORIGUCHI, Jun YOSHIKAWA
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Patent number: 10273359Abstract: Disclosed is a polyamide resin composition, including: a polyamide (A) containing a diamine unit including 70 mol % or more of a p-xylylenediamine unit and a dicarboxylic acid unit including 70 mol % or more of a linear aliphatic dicarboxylic acid unit having 6 to 18 carbon atoms; and a filler (B), in which the polyamide (A) includes a polyamide having a phosphorus atom concentration of 50 to 1,000 ppm and a YI value of 10 or less in a color difference test in accordance with JIS-K-7105, and a content of the filler (B) is 1 to 200 parts by mass with respect to 100 parts by mass of the polyamide (A).Type: GrantFiled: September 14, 2010Date of Patent: April 30, 2019Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Shun Ogawa, Hisayuki Kuwahara, Shinichi Ayuba, Takahiko Sumino, Kentaro Ishii
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Patent number: 10035129Abstract: Oxygen-absorbing resin composition, not responsive to a metal detector, producing no odor after absorption of oxygen and has excellent oxygen-absorbing performance in a wide range of humidity conditions from low to high humidity. An oxygen-absorbing molded article, and a multilayer body, container, injection-molded article and medical containers also provided. The oxygen absorbing resin composition contains a polyester, comprising at least one constituent unit having a tetralin ring component compound, a transition metal catalyst, and a catalyst for producing the polyester. The oxygen-absorbing molded article of the present invention can be formed by molding the oxygen-absorbing resin composition into a film or a sheet. The multilayer body, container, injection-molded article, medical container, etc. of the present invention are obtained by using the oxygen-absorbing resin composition.Type: GrantFiled: November 22, 2012Date of Patent: July 31, 2018Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Satoshi Okada, Toshiya Takagi, Takashi Kashiba, Shinpei Iwamoto, Shinichi Ikeda, Fumihiro Ito, Shun Ogawa, Shota Arakawa, Kenichiro Usuda
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Patent number: 10035640Abstract: Provided is an oxygen-absorbing multilayer body including an oxygen-absorbing layer containing an oxygen-absorbing composition and a thermoplastic resin layer containing a thermoplastic resin (b), wherein the oxygen-absorbing composition includes at least one compound having a tetralin ring represented by Formula (1), a transition metal catalyst, and a thermoplastic resin (a).Type: GrantFiled: March 6, 2014Date of Patent: July 31, 2018Assignee: MITSUBISHI HAS CHEMICAL COMPANY, INC.Inventors: Satoshi Okada, Shinpei Iwamoto, Shinichi Ikeda, Fumihiro Ito, Takashi Kashiba, Shun Ogawa, Shota Arakawa, Kenichiro Usuda
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Patent number: 9994382Abstract: Provided is an oxygen-absorbing medical multilayer container including at least three layers including a first resin layer containing a thermoplastic resin (b1), an oxygen-absorbing layer containing an oxygen-absorbing composition, and a second resin layer containing a thermoplastic resin (b2), in this order, where the oxygen-absorbing composition contains at least one compound having a tetralin ring represented by Formula (1), a transition metal catalyst, and a thermoplastic resin (a).Type: GrantFiled: March 6, 2014Date of Patent: June 12, 2018Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Takashi Kashiba, Shun Ogawa, Shota Arakawa, Kenichiro Usuda
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Patent number: 9840359Abstract: Provided are a novel oxygen-absorbing resin composition not responsive to a metal detector, producing no odor after absorption of oxygen and having excellent oxygen-absorbing performance, and a multilayer body, container, injection-molded article and medical container using these. Further provided are an oxygen-absorbing resin composition etc. having excellent oxygen-absorbing performance in a wide range of humidity conditions from low humidity to high humidity. The oxygen-absorbing resin composition of the present invention is an oxygen-absorbing resin composition containing a polyamide compound and a transition metal catalyst, wherein the polyamide compound has at least one constituent unit having a tetralin ring. Moreover, the multilayer body, container, injection-molded article, medical container, etc. of the present invention are obtained by using the oxygen-absorbing resin composition of the present invention.Type: GrantFiled: December 17, 2012Date of Patent: December 12, 2017Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Satoshi Okada, Toshiya Takagi, Takashi Kashiba, Shinpei Iwamoto, Shinichi Ikeda, Fumihiro Ito, Shun Ogawa, Shota Arakawa, Kenichiro Usuda
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Patent number: 9732167Abstract: Provided is a novel oxygen-absorbing resin composition having excellent oxygen-absorbing performance and suppressing odor generation after absorption of oxygen even if a material responsive to a metal detector is not used. Further provided is an oxygen-absorbing resin composition having excellent oxygen-absorbing performance in a wide range of humidity conditions from low humidity to high humidity. Such an oxygen-absorbing resin composition contains a copolymerized polyolefin compound and a transition metal catalyst, in which the copolymerized polyolefin compound contains at least one constituent unit having a tetralin ring.Type: GrantFiled: February 8, 2013Date of Patent: August 15, 2017Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Satoshi Okada, Toshiya Takagi, Takashi Kashiba, Shinpei Iwamoto, Shinichi Ikeda, Fumihiro Ito, Shun Ogawa, Shota Arakawa, Kenichiro Usuda
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Publication number: 20150368022Abstract: Provided is an oxygen-absorbing multilayer body including an oxygen-absorbing layer containing an oxygen-absorbing composition and a thermoplastic resin layer containing a thermoplastic resin (b), wherein the oxygen-absorbing composition includes at least one compound having a tetralin ring represented by Formula (1), a transition metal catalyst, and a thermoplastic resin (a).Type: ApplicationFiled: March 6, 2014Publication date: December 24, 2015Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Satoshi OKADA, Shinpei IWAMOTO, Shinichi IKEDA, Fumihiro ITO, Takashi KASHIBA, Shun OGAWA, Shota ARAKAWA, Kenichiro USUDA
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Publication number: 20150368023Abstract: Provided is an oxygen-absorbing medical multilayer container including at least three layers including a first resin layer containing a thermoplastic resin (b1), an oxygen-absorbing layer containing an oxygen-absorbing composition, and a second resin layer containing a thermoplastic resin (b2), in this order, where the oxygen-absorbing composition contains at least one compound having a tetralin ring represented by Formula (1), a transition metal catalyst, and a thermoplastic resin (a).Type: ApplicationFiled: March 6, 2014Publication date: December 24, 2015Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Takashi KASHIBA, Shun OGAWA, Shota ARAKAWA, Kenichiro USUDA
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Publication number: 20150298887Abstract: Provided are a novel oxygen-absorbing resin composition not responsive to a metal detector, producing no odor after absorption of oxygen and having excellent oxygen-absorbing performance, and a multilayer body, container, injection-molded article and medical container using these. Further provided are an oxygen-absorbing resin composition etc. having excellent oxygen-absorbing performance in a wide range of humidity conditions from low humidity to high humidity. The oxygen-absorbing resin composition of the present invention is an oxygen-absorbing resin composition containing a polyamide compound and a transition metal catalyst, wherein the polyamide compound has at least one constituent unit having a tetralin ring. Moreover, the multilayer body, container, injection-molded article, medical container, etc. of the present invention are obtained by using the oxygen-absorbing resin composition of the present invention.Type: ApplicationFiled: December 17, 2012Publication date: October 22, 2015Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Satoshi Okada, Toshiya Takagi, Takashi Kashiba, Shinpei Iwamoto, Shinichi Ikeda, Fumihiro Ito, Shun Ogawa, Shota Arakawa, Kenichiro Usuda
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Publication number: 20150166726Abstract: A polyamide resin which comprises a diamine unit containing 70 mol % or more of a paraxylylenediamine unit and a dicarboxylic acid unit containing 70 mol % or more of a linear aliphatic dicarboxylic acid unit having from 6 to 18 carbon atoms, and which has a phosphorus atom concentration of from 50 to 1,000 ppm and a YI value of 10 or less in the color difference test in accordance with JIS-K-7105.Type: ApplicationFiled: September 19, 2014Publication date: June 18, 2015Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Shun Ogawa, Shinichi Ayuba, Takahiko Sumino, Hisayuki Kuwahara, Kentaro Ishii
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Patent number: 8927647Abstract: A polyamide resin composed of constitutional units derived from a diamine component 70 mol % or more of which is derived from p-xylylenediamine and constitutional unit derived from a dicarboxylic acid 70 mol % or more of which is derived from an aliphatic dicarboxylic acid having 6 to 18 carbon atoms. The polyamide resin has a number average molecular weight (Mn) of 10,000 to 50,000 and a degree of dispersion (weight average molecular weight/number average molecular weight=Mw/Mn) satisfying the following formula (1): 1.5?(Mw/Mn)?6.0, wherein Mw and Mn are determined by gel permeation chromatography (GPC).Type: GrantFiled: September 15, 2009Date of Patent: January 6, 2015Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Tomomichi Kanda, Hisayuki Kuwahara, Shun Ogawa, Takahiko Sumino, Kentaro Ishii
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Publication number: 20140373485Abstract: Provided is a novel oxygen-absorbing resin composition having excellent oxygen-absorbing performance and suppressing odor generation after absorption of oxygen even if a material responsive to a metal detector is not used. Further provided is an oxygen-absorbing resin composition having excellent oxygen-absorbing performance in a wide range of humidity conditions from low humidity to high humidity. Such an oxygen-absorbing resin composition contains a copolymerized polyolefin compound and a transition metal catalyst, in which the copolymerized polyolefin compound contains at least one constituent unit having a tetralin ring.Type: ApplicationFiled: February 8, 2013Publication date: December 25, 2014Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Satoshi Okada, Toshiya Takagi, Takashi Kashiba, Shinpei Iwamoto, Shinichi Ikeda, Fumihiro Ito, Shun Ogawa, Shota Arakawa, Kenichiro Usuda
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Publication number: 20140370219Abstract: Provided are a medical packaging container having a polyester resin (A1) including diol units and dicarboxylic units, the diol units including at least one diol unit in an amount of 1 to 30 mol % selected from diol units having a bridged alicyclic skeleton derived from a compound represented by formula (1), formula (2), or formula (3), the dicarboxylic acid units including dicarboxylic acid units having a naphthalene skeleton in an amount of 70 mol % or more; and a manufacturing method of the polyester for the container.Type: ApplicationFiled: October 5, 2012Publication date: December 18, 2014Inventors: Shun Ogawa, Takeshi Hirokane, Takashi Kashiba, Shota Arakawa, Kenichiro Usuda
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Publication number: 20140308405Abstract: A novel oxygen-absorbing resin composition is not responsive to a metal detector, produces no odor after absorption of oxygen and has excellent oxygen-absorbing performance, and an oxygen-absorbing molded article, and a multilayer body, container, injection-molded article and medical container. Further provided are an oxygen-absorbing resin composition etc. having excellent oxygen-absorbing performance in a wide range of humidity conditions from low to high humidity. The oxygen-absorbing resin composition is an oxygen-absorbing resin composition containing a polyester compound and a transition metal catalyst, in which the polyester compound has at least one constituent unit having a tetralin ring. Furthermore, the oxygen-absorbing molded article of the present invention is formed by molding the oxygen-absorbing resin composition into a film form or a sheet form. Moreover, the multilayer body, container, injection-molded article, medical container, etc.Type: ApplicationFiled: November 22, 2012Publication date: October 16, 2014Inventors: Satoshi Okada, Toshiya Takagi, Takashi Kashiba, Shinpei Iwamoto, Shinichi Ikeda, Fumihiro Ito, Shun Ogawa, Shota Arakawa, Kenichiro Usuda
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Patent number: 8835596Abstract: A method of producing polyamide by the direct polycondensation of a diamine component and a dicarboxylic acid component without using a solvent, such as water. The diamine component containing 70 mol % or more of p-xylylenediamine is added to a reaction system containing the dicarboxylic acid component under pressure while maintaining the reaction system in a molten state. After the addition of the diamine component, the pressure of the reaction system is reduced to atmospheric pressure over 50 min or more at a pressure falling speed of 1.0 MPa/h or less. By the production method, polyamide with a small molecular weight dispersion is easily produced.Type: GrantFiled: September 11, 2009Date of Patent: September 16, 2014Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Hisayuki Kuwahara, Tomomichi Kanda, Shun Ogawa, Shinichi Ayuba, Kentaro Ishii, Takahiko Sumino
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Patent number: 8785590Abstract: The invention provides a polyamide having a dicarboxylic acid unit containing a decahydronaphthalenedicarboxylic acid unit in an amount of 60 mol % or more, and a diamine unit.Type: GrantFiled: August 18, 2010Date of Patent: July 22, 2014Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Kentaro Ishii, Shun Ogawa
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Patent number: 8569404Abstract: Disclose is a polyamide resin composition having excellent heat resistance, heat aging resistance and mechanical physical properties, which is produced by incorporating a specified aromatic secondary amine compound and a specified organic sulfur based compound into a polyamide composed of a diamine unit containing a paraxylylenediamine unit as a major component and a dicarboxylic acid unit containing a linear aliphatic dicarboxylic acid unit having from 6 to 18 carbon atoms as a major component.Type: GrantFiled: May 28, 2010Date of Patent: October 29, 2013Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Shun Ogawa, Takahiko Sumino