Patents by Inventor Takashi Sawaguchi
Takashi Sawaguchi 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: 20140357805Abstract: The present disclosure relates to a novel polyolefin having a terminal double bond and a method of producing the same. A polyolefin having a terminal double bond includes a polyolefin having a terminal double bond at either end and a polyolefin having a terminal double bond at one end, which are thermal degradation products of a polyolefin. An average number of terminal vinylidene groups per molecule is 1.3 to 1.9, a number average molecular weight (Mn) is 50,000 to 5,000,000, and a polydispersity index (Mw/Mn) of a molecular weight distribution is less than or equal to 5.0.Type: ApplicationFiled: September 13, 2012Publication date: December 4, 2014Applicants: SAN-EI KOUGYOU CORPORATION, NIHON UNIVERSITYInventors: Takashi Sawaguchi, Daisuke Sasaki
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Publication number: 20140249278Abstract: An ionomer has an ABA-type triblock structure, wherein an A-block is an ionic polymer block including a structural unit having a general formula (i) expressed as follows: —(CH2—CR1(COOM1/y)- where R1 is one of a methyl group and hydrogen, M is one of metal, NH4, organic ammonium and imidazolium, and y is a valence of an M ion, and a B-block is a nonionic polymer block selected from a group consisting of an olefin (co) polymer block, a vinyl (co) polymer block, a diene (co) polymer block, a polyester resin block and a polycarbonate resin block.Type: ApplicationFiled: May 16, 2014Publication date: September 4, 2014Inventors: Takashi SAWAGUCHI, Daisuke SASAKI
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Patent number: 8461265Abstract: This invention provides a triblock copolymer useful as a compatibilizer for biodegradable polymers, such as polylactic acid, and general-purpose polymers. Namely, this is a triblock copolymer represented by the below general formula (i), wherein each R1 is independently selected from the group consisting of H, —CH3, —C2H5, and —CH2CH(CH3)2, n is an integer of 10 to 1000, and A represents a polyester block obtained by subjecting one or more cyclic esters selected from the group consisting of lactides, glycolides and lactones, to ring-opening polymerization.Type: GrantFiled: February 27, 2009Date of Patent: June 11, 2013Assignee: San-Ei Kougyou CorporationInventors: Takashi Sawaguchi, Daisuke Sasaki
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Publication number: 20110046308Abstract: This invention provides a triblock copolymer useful as a compatibilizer for biodegradable polymers, such as polylactic acid, and general-purpose polymers. Namely, this is a triblock copolymer represented by the below general formula (i), wherein each R1 is independently selected from the group consisting of H, —CH3, —C2H5, and —CH2CH(CH3)2, n is an integer of 10 to 1000, and A represents a polyester block obtained by subjecting one or more cyclic esters selected from the group consisting of lactides, glycolides and lactones, to ring-opening polymerization.Type: ApplicationFiled: February 27, 2009Publication date: February 24, 2011Inventors: Takashi Sawaguchi, Daisuke Sasaki
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Patent number: 7452939Abstract: A polyesterified block copolymer represented by the general formula (1), (2) or (3) (for example, polyolefin/polyolefin block copolymer of the following general formula (1)), obtained by an esterification reaction between a terminal maleated polymer and a terminal hydroxylated polymer. Also, a process for producing the same is provided. (1) wherein each of R1 and R2 represents hydrogen or methyl; m is an integer of 10 to 200; n is an integer 10 to 200; k is an integer 5 of to 3000.Type: GrantFiled: March 26, 2003Date of Patent: November 18, 2008Assignees: San-Ei Kougyou Corporation, Takashi SawaguchiInventor: Takashi Sawaguchi
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Publication number: 20080220333Abstract: A lithium ion conductive material that excels in mechanical strength, exhibiting high ion conductivity; a bacterial cellulose composite material having an inorganic material and/or organic material incorporated therein; and a bacterial cellulose aerogel. The water of bacterial cellulose hydrogel is replaced by a nonaqueous solvent containing a lithium compound. Bacterial cellulose producing bacteria are grown in a culture medium having an inorganic material and/or organic material added thereto. The bacterial cellulose hydrogel is dehydrated and dried.Type: ApplicationFiled: June 29, 2005Publication date: September 11, 2008Inventors: Shoichiro Yano, Takashi Sawaguchi, Toshiki Hagiwara, Hideaki Maeda, Megumi Nakajima, Kazuhiro Sasaki
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Patent number: 7345017Abstract: An amphiphilic functional substance with lipophilicity, affinity for supercritical CO2, and if necessary hydrophilicity comprising an oligoolefin chain and a perfluoroalkyl group(s) at a single end thereof or at both ends thereof with or without the intervention of a poly(oxyalkylene) chain, which enables the utilization of supercritical CO2 as a reaction medium; a photopolymerizable functional substance comprising an oligoolefin chain and a reversible photopolymerization/dissociation group(s) at a single end thereof or at both ends thereof and a functional substance comprising a photo- and/or thermodissociable polymer obtained by photopolymerization of the aforementioned photopolymerizable functional substance, which can be utilized as recycle polymers; a hydrolyzable functional substance comprising a polymer obtained by chain-elongating plural oligoolefin chains through ester linkages, which can be utilized as a recycle polymer; and a functional substance capable of forming a microphase separation structureType: GrantFiled: January 18, 2007Date of Patent: March 18, 2008Assignee: San-El Kougyou CorporationInventor: Takashi Sawaguchi
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Publication number: 20070276109Abstract: The invention relates to a porous nano material polymer composite. The porous nano material polymer composite according to the invention is prepared by impregnating monomer in the nanometer order holes of a nano material by supercritical carbon dioxide fluid, and by polymerizing the monomer in situ. Therefore, the polymer composite has a network structure in which polymer penetrates into nano pores.Type: ApplicationFiled: March 4, 2005Publication date: November 29, 2007Applicant: NIHON UNIVERSITYInventors: Takashi Sawaguchi, Shoichiro Yano, Toshiki Hagiwara, Mitsuko Ito
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Patent number: 7229957Abstract: This invention provides the following: an amphiphilic functional substance with lipophilicity, affinity for supercritical CO2, and if necessary hydrophilicity comprising an oligoolefin chain and a perfluoroalkyl group(s) at a single end thereof or at both ends thereof with or without the intervention of a poly(oxyalkylene) chain, which enables the utilization of supercritical CO2 as a reaction medium; a photopolymerizable functional substance comprising an oligoolefin chain and a reversible photopolymerization/dissociation group(s) at a single end thereof or at both ends thereof and a functional substance comprising a photo- and/or thermodissociable polymer obtained by photopolymerization of the aforementioned photopolymerizable functional substance, which can be utilized as recycle polymers; a hydrolyzable functional substance comprising a polymer obtained by chain-elongating plural oligoolefin chains through ester linkages, which can be utilized as a recycle polymer; and a functional substance capable of foType: GrantFiled: May 25, 2006Date of Patent: June 12, 2007Assignee: San-El Kougyou CorporationInventor: Takashi Sawaguchi
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Publication number: 20070117738Abstract: An amphiphilic functional substance with lipophilicity, affinity for supercritical CO2, and if necessary hydrophilicity comprising an oligoolefin chain and a perfluoroalkyl group(s) at a single end thereof or at both ends thereof with or without the intervention of a poly(oxyalkylene) chain, which enables the utilization of supercritical CO2 as a reaction medium; a photopolymerizable functional substance comprising an oligoolefin chain and a reversible photopolymerization/dissociation group(s) at a single end thereof or at both ends thereof and a functional substance comprising a photo- and/or thermodissociable polymer obtained by photopolymerization of the aforementioned photopolymerizable functional substance, which can be utilized as recycle polymers; a hydrolyzable functional substance comprising a polymer obtained by chain-elongating plural oligoolefin chains through ester linkages, which can be utilized as a recycle polymer; and a functional substance capable of forming a microphase separation structureType: ApplicationFiled: January 18, 2007Publication date: May 24, 2007Inventor: Takashi Sawaguchi
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Patent number: 7144461Abstract: There is provided a method of removing acids from the surface and interior of an acetate film produced by deterioration during storage. Such methods are characterized by extracting and removing the acids from the surface and interior of the acetate film, and the extraction treatment includes solvent extraction or evacuation (heating). This method suppresses the deterioration process in the storage of the acetate film.Type: GrantFiled: January 15, 2004Date of Patent: December 5, 2006Assignees: Nihon University, Kokusai Microfilm Co., Inc.Inventors: Takashi Sawaguchi, Shoichiro Yano, Yoshitaka Morimatsu, Mitsuru Sakaki
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Patent number: 7125834Abstract: This invention provides the following: an amphiphilic functional substance with lipophilicity, affinity for supercritical CO2, and if necessary hydrophilicity comprising an oligoolefin chain and a perfluoroalkyl group(s) at a single end thereof or at both ends thereof with or without the intervention of a poly(oxyalkylene) chain, which enables the utilization of supercritical CO2 as a reaction medium; a photopolymerizable functional substance comprising an oligoolefin chain and a reversible photopolymerization/dissociation group(s) at a single end thereof or at both ends thereof and a functional substance comprising a photo- and/or thermodissociable polymer obtained by photopolymerization of the aforementioned photopolymerizable functional substance, which can be utilized as recycle polymers; a hydrolyzable functional substance comprising a polymer obtained by chain-elongating plural oligoolefin chains through ester linkages, which can be utilized as a recycle polymer; and a functional substance capable of foType: GrantFiled: November 22, 2001Date of Patent: October 24, 2006Assignee: San-Ei Kougyou CorporationInventor: Takashi Sawaguchi
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Publication number: 20060211595Abstract: This invention provides the following: an amphiphilic functional substance with lipophilicity, affinity for supercritical CO2, and if necessary hydrophilicity comprising an oligoolefin chain and a perfluoroalkyl group(s) at a single end thereof or at both ends thereof with or without the intervention of a poly(oxyalkylene) chain, which enables the utilization of supercritical CO2 as a reaction medium; a photopolymerizable functional substance comprising an oligoolefin chain and a reversible photopolymerization/ dissociation group(s) at a single end thereof or at both ends thereof and a functional substance comprising a photo- and/or thermodissociable polymer obtained by photopolymerization of the aforementioned photopolymerizable functional substance, which can be utilized as recycle polymers; a hydrolyzable functional substance comprising a polymer obtained by chain-elongating plural oligoolefin chains through ester linkages, which can be utilized as a recycle polymer; and a functional substance capable of fType: ApplicationFiled: May 25, 2006Publication date: September 21, 2006Inventor: Takashi Sawaguchi
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Patent number: 7019095Abstract: An ethylene-vinyl alcohol copolymer, represented by the formula (1): wherein n represents a number in the range of 15 to 15,000, and a method of producing an ethylene-vinyl alcohol copolymer wherein an 1,4 -polybutadiene is hydroborated in non-gel state in a solvent, followed by oxidation to be hydroxylated so as to derive an ethylene-vinyl alcohol copolymer represented by the formula (1): wherein n represents a number in the range of 15 to 15,000.Type: GrantFiled: August 20, 2002Date of Patent: March 28, 2006Assignee: Nihon University, School Juridical PersonInventors: Takashi Sawaguchi, Shoichiro Yano, Toshiki Hagiwara, Yoshihiro Chishima, Yuko Akutsu
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Publication number: 20060054185Abstract: There is provided a method of removing acids from the surface and interior of an acetate film produced by deterioration during storage. Such methods are characterized by extracting and removing the acids from the surface and interior of the acetate film, and the extraction treatment includes solvent extraction or evacuation (heating). This method suppresses the deterioration process in the storage of the acetate film.Type: ApplicationFiled: January 15, 2004Publication date: March 16, 2006Inventors: Takashi Sawaguchi, Shoichiro Yano, Yoshitaka Morimatsu, Mitsuru Sakaki
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Publication number: 20060025532Abstract: A polyesterified block copolymer represented by the general formula (1), (2) or (3) (for example, polyolefin/polyolefin block copolymer of the following general formula (1)), obtained by an esterification reaction between a terminal maleated polymer and a terminal hydroxylated polymer. Also, a process for producing the same is provided. (1) wherein each of R1 and R2 represents hydrogen or methyl; m is an integer of 10 to 200; n is an integer 10 to 200; k is an integer 5 of to 3000.Type: ApplicationFiled: March 26, 2003Publication date: February 2, 2006Applicant: SAN-EI KOUYOU CORPORATIONInventor: Takashi Sawaguchi
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Patent number: 6931538Abstract: An object of the present invention is to provide a portable personal authentication apparatus which can perform personal authentication, being essential in a future society, anywhere and be used for all purposes and an electronic system to which access is permitted by the apparatus. A mobile device, such as a cellular telephone or a PDA, is used with a portable personal authentication apparatus as a portable communication terminal device 51 and at least one of biological features including a man's fingerprint, voiceprint, and irisprint is used as a medium for authenticating a person as, for example, the user himself/herself. That is to say, biometric authentication is performed. In addition, functions like an electronic purse a conventional IC card etc. had are included in the portable communication terminal device (portable personal authentication apparatus) and the portable communication terminal device is connected to ATM equipment etc.Type: GrantFiled: September 25, 2000Date of Patent: August 16, 2005Inventor: Takashi Sawaguchi
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Patent number: 6916545Abstract: A resin composition to be used as a material for a various part of an automotive vehicle. The resin composition comprises a copolymer (A) formed by copolymerization of a first unsaturated monomer (a) and a second mononer (b). The first unsaturated monomer has a functional group which is bondable by hydrogen bond to a hydroxyl group. The second monomer is copolymerizable with the first unsaturated monomer. A metal oxide (B) is dispersed in the copolymer and having hydroxyl groups and hydrophobic groups at surface of the metal oxide.Type: GrantFiled: October 31, 2002Date of Patent: July 12, 2005Assignees: Nissan Motor Co., Ltd., Nihon University School Jurdical Person, Tama-TLO CorporationInventors: Shoichiro Yano, Takashi Sawaguchi, Masatoshi Chikazawa, Takashi Takei, Tomohiro Ito, Masao Nakajima, Takashi Seino, Yasuaki Kai, Shinkichi Torii, Kouichi Handa, Katsuhiko Suzuki, Kenji Uesugi
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Patent number: 6903148Abstract: A resin composition of the present invention comprises a polymer having functional groups and a metal oxide surface modified to form functional groups at a surface of the metal oxide and dispersed uniformly in the polymer. The functional groups of the polymer and the functional groups of the metal oxide are ionically bondable to the metal oxide and the polymer, respectively, so that the polymer and the metal oxide are bonded by ionic bonds to each other.Type: GrantFiled: March 26, 2003Date of Patent: June 7, 2005Assignees: Nissan Motor Co., Ltd., Tama-Tlo CorporationInventors: Katsuhiko Suzuki, Yasuaki Kai, Koichi Handa, Masao Nakajima, Takashi Seino, Shinkichi Torii, Tomohiro Ito, Kenji Uesugi, Masatoshi Chikazawa, Takashi Takei, Shoichiro Yano, Takashi Sawaguchi
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Publication number: 20040204550Abstract: According to the present invention, an ethylene-vinyl alcohol copolymer having a novel structure, and a method of producing the same are provided.Type: ApplicationFiled: May 19, 2004Publication date: October 14, 2004Inventors: Takashi Sawaguchi, Shoichiro Yano, Toshiki Hagiwara, Yoshihiro Chishima, Yuko Akutsu