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).

  • Publication number: 20140357805
    Abstract: 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: Application
    Filed: September 13, 2012
    Publication date: December 4, 2014
    Applicants: SAN-EI KOUGYOU CORPORATION, NIHON UNIVERSITY
    Inventors: Takashi Sawaguchi, Daisuke Sasaki
  • Publication number: 20140249278
    Abstract: 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: Application
    Filed: May 16, 2014
    Publication date: September 4, 2014
    Inventors: Takashi SAWAGUCHI, Daisuke SASAKI
  • Patent number: 8461265
    Abstract: 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: Grant
    Filed: February 27, 2009
    Date of Patent: June 11, 2013
    Assignee: San-Ei Kougyou Corporation
    Inventors: Takashi Sawaguchi, Daisuke Sasaki
  • Publication number: 20110046308
    Abstract: 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: Application
    Filed: February 27, 2009
    Publication date: February 24, 2011
    Inventors: Takashi Sawaguchi, Daisuke Sasaki
  • Patent number: 7452939
    Abstract: 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: Grant
    Filed: March 26, 2003
    Date of Patent: November 18, 2008
    Assignees: San-Ei Kougyou Corporation, Takashi Sawaguchi
    Inventor: Takashi Sawaguchi
  • Publication number: 20080220333
    Abstract: 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: Application
    Filed: June 29, 2005
    Publication date: September 11, 2008
    Inventors: Shoichiro Yano, Takashi Sawaguchi, Toshiki Hagiwara, Hideaki Maeda, Megumi Nakajima, Kazuhiro Sasaki
  • Patent number: 7345017
    Abstract: 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 structure
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: March 18, 2008
    Assignee: San-El Kougyou Corporation
    Inventor: Takashi Sawaguchi
  • Publication number: 20070276109
    Abstract: 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: Application
    Filed: March 4, 2005
    Publication date: November 29, 2007
    Applicant: NIHON UNIVERSITY
    Inventors: Takashi Sawaguchi, Shoichiro Yano, Toshiki Hagiwara, Mitsuko Ito
  • Patent number: 7229957
    Abstract: 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 fo
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: June 12, 2007
    Assignee: San-El Kougyou Corporation
    Inventor: Takashi Sawaguchi
  • Publication number: 20070117738
    Abstract: 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 structure
    Type: Application
    Filed: January 18, 2007
    Publication date: May 24, 2007
    Inventor: Takashi Sawaguchi
  • Patent number: 7144461
    Abstract: 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: Grant
    Filed: January 15, 2004
    Date of Patent: December 5, 2006
    Assignees: Nihon University, Kokusai Microfilm Co., Inc.
    Inventors: Takashi Sawaguchi, Shoichiro Yano, Yoshitaka Morimatsu, Mitsuru Sakaki
  • Patent number: 7125834
    Abstract: 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 fo
    Type: Grant
    Filed: November 22, 2001
    Date of Patent: October 24, 2006
    Assignee: San-Ei Kougyou Corporation
    Inventor: Takashi Sawaguchi
  • Publication number: 20060211595
    Abstract: 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 f
    Type: Application
    Filed: May 25, 2006
    Publication date: September 21, 2006
    Inventor: Takashi Sawaguchi
  • Patent number: 7019095
    Abstract: 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: Grant
    Filed: August 20, 2002
    Date of Patent: March 28, 2006
    Assignee: Nihon University, School Juridical Person
    Inventors: Takashi Sawaguchi, Shoichiro Yano, Toshiki Hagiwara, Yoshihiro Chishima, Yuko Akutsu
  • Publication number: 20060054185
    Abstract: 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: Application
    Filed: January 15, 2004
    Publication date: March 16, 2006
    Inventors: Takashi Sawaguchi, Shoichiro Yano, Yoshitaka Morimatsu, Mitsuru Sakaki
  • Publication number: 20060025532
    Abstract: 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: Application
    Filed: March 26, 2003
    Publication date: February 2, 2006
    Applicant: SAN-EI KOUYOU CORPORATION
    Inventor: Takashi Sawaguchi
  • Patent number: 6931538
    Abstract: 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: Grant
    Filed: September 25, 2000
    Date of Patent: August 16, 2005
    Inventor: Takashi Sawaguchi
  • Patent number: 6916545
    Abstract: 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: Grant
    Filed: October 31, 2002
    Date of Patent: July 12, 2005
    Assignees: Nissan Motor Co., Ltd., Nihon University School Jurdical Person, Tama-TLO Corporation
    Inventors: Shoichiro Yano, Takashi Sawaguchi, Masatoshi Chikazawa, Takashi Takei, Tomohiro Ito, Masao Nakajima, Takashi Seino, Yasuaki Kai, Shinkichi Torii, Kouichi Handa, Katsuhiko Suzuki, Kenji Uesugi
  • Patent number: 6903148
    Abstract: 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: Grant
    Filed: March 26, 2003
    Date of Patent: June 7, 2005
    Assignees: Nissan Motor Co., Ltd., Tama-Tlo Corporation
    Inventors: Katsuhiko Suzuki, Yasuaki Kai, Koichi Handa, Masao Nakajima, Takashi Seino, Shinkichi Torii, Tomohiro Ito, Kenji Uesugi, Masatoshi Chikazawa, Takashi Takei, Shoichiro Yano, Takashi Sawaguchi
  • Publication number: 20040204550
    Abstract: According to the present invention, an ethylene-vinyl alcohol copolymer having a novel structure, and a method of producing the same are provided.
    Type: Application
    Filed: May 19, 2004
    Publication date: October 14, 2004
    Inventors: Takashi Sawaguchi, Shoichiro Yano, Toshiki Hagiwara, Yoshihiro Chishima, Yuko Akutsu