Patents Assigned to Totai Co., Ltd.
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Publication number: 20230041408Abstract: Provided is a method for producing a material that suppresses a decrease in the life of an insulation against surge voltage, that is, a material that provides a long dielectric breakdown lifetime. The method is a method for producing a fullerene-derivative-containing resin composition containing a fullerene derivative and a resin that has an affinity for a polar solvent, including: a step (I) of dispersing a fullerene derivative in a polar solvent; and a step (II) of mixing the polar solvent in which the fullerene derivative is dispersed with a resin that has an affinity for the polar solvent.Type: ApplicationFiled: March 18, 2021Publication date: February 9, 2023Applicant: TOTAI CO., LTD.Inventors: Akio HARADA, Yasuharu MIYASHITA, Takeshi NOGUCHI, Juichi KASAI
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Patent number: 9884955Abstract: A hydroxylated-fullerene-containing solution in which a hydroxylated fullerene is evenly nano-dispersed in a solvent removable at low temperature in a subsequent step is provided. The hydroxylated-fullerene-containing solution includes a continuous phase including a mixed solvent consisting essentially of tetrahydrofuran and water or including melted phenol, and at least one of a hydroxylated fullerene and a hydroxylated fullerene derivative that is dispersed as a dispersed phase in the continuous phase, wherein the number-standard average particle diameter of particles in the dispersed phase is 50 nm or less. This solution is applied onto a surface of a resin molding, and then tetrahydrofuran and water, as the mixed solvent, are removed to form a hydroxylated fullerene layer on the surface of the resin molding. Alternatively, this solution is mingled with a resin, and then the mixed solvent is removed to produce a hydroxylated-fullerene-containing resin composition.Type: GrantFiled: April 22, 2015Date of Patent: February 6, 2018Assignee: TOTAI CO., LTD.Inventors: Ken Kokubo, Takeshi Noguchi, Juichi Kasai, Akio Harada
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Publication number: 20160312011Abstract: A hydroxylated-fullerene-containing solution in which a hydroxylated fullerene is evenly nano-dispersed in a solvent removable at low temperature in a subsequent step is provided. The hydroxylated-fullerene-containing solution includes a continuous phase including a mixed solvent consisting essentially of tetrahydrofuran and water or including melted phenol, and at least one of a hydroxylated fullerene and a hydroxylated fullerene derivative that is dispersed as a dispersed phase in the continuous phase, wherein the number-standard average particle diameter of particles in the dispersed phase is 50 nm or less. This solution is applied onto a surface of a resin molding, and then tetrahydrofuran and water, as the mixed solvent, are removed to form a hydroxylated fullerene layer on the surface of the resin molding. Alternatively, this solution is mingled with a resin, and then the mixed solvent is removed to produce a hydroxylated-fullerene-containing resin composition.Type: ApplicationFiled: April 22, 2015Publication date: October 27, 2016Applicant: TOTAI Co, Ltd.Inventors: Ken Kokubo, Takeshi Noguchi, Juichi Kasai, Akio Harada
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Patent number: 9334214Abstract: Provided is a resin composition having excellent heat resistance by virtue of improved compatibility of a fullerene with a resin. Specifically, provided is a long-chain alkyl-etherified fullerene derivative, including: a fullerene skeleton formed of a spherical shell-shaped carbon molecule; and a long-chain alkyl group having 4 or more carbon atoms, which is bonded to the fullerene skeleton through an ether bond.Type: GrantFiled: June 30, 2015Date of Patent: May 10, 2016Assignee: TOTAI CO., LTD.Inventors: Ken Kokubo, Akio Harada, Takeshi Noguchi
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Publication number: 20160009620Abstract: Provided is a resin composition having excellent heat resistance by virtue of improved compatibility of a fullerene with a resin. Specifically, provided is a long-chain alkyl-etherified fullerene derivative, including: a fullerene skeleton formed of a spherical shell-shaped carbon molecule; and a long-chain alkyl group having 4 or more carbon atoms, which is bonded to the fullerene skeleton through an ether bond.Type: ApplicationFiled: June 30, 2015Publication date: January 14, 2016Applicant: TOTAI CO., LTD.Inventors: Ken Kokubo, Akio Harada, Takeshi Noguchi
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Patent number: 8987526Abstract: Provided are a novel fullerene derivative which can adsorb quickly and efficiently an allergen which may cause a pollen allergy without releasing the allergen again, does not contain a metal or the like which may cause a harmful effect to a human body, and is easily applicable, impregnable, or chemically bondable onto surface of various materials: and a process for producing the same. The fullerene derivative is characterized in that a halogen group and many hydroxyl groups are bonded directly to a fullerene nucleus. In the case that the halogen group is chlorine, the fullerene derivative can be synthesized by a partial hydroxylation of a chlorinated fullerene or a partial chlorination of a hydroxylated fullerene.Type: GrantFiled: September 24, 2014Date of Patent: March 24, 2015Assignees: Osaka University, Totai Co., Ltd.Inventors: Ken Kokubo, Takeshi Noguchi
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Publication number: 20150055895Abstract: To provide a package bag that can be easily opened, while preventing unintentional breakage or opening. A flexible film package bag 1 comprises: a sealed portion 2 in which a flexible film is joined; and a plurality of notches 4 for opening. The plurality of notches 4 are provided in such a way that an end thereof on an outer edge portion 6 side of the flexible film package bag 1 is positioned away from the outer edge portion 6 by a predetermined distance. Since the outer edge portion 6 has neither a cutout nor slit and all notches 4 are away from the outer edge portion 6, there is no risk of unintentional breakage or opening and the package bag can be easily opened as necessary.Type: ApplicationFiled: February 28, 2014Publication date: February 26, 2015Applicant: TOTAI CO., LTD.Inventors: Misao Kishi, Kenji Watanabe
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Patent number: 8957261Abstract: Provided are a novel fullerene derivative which can adsorb quickly and efficiently an allergen which may cause a pollen allergy without releasing the allergen again, does not contain a metal or the like which may cause a harmful effect to a human body, and is easily applicable, impregnable, or chemically bondable onto surface of various materials; and a process for producing the same. The fullerene derivative is characterized in that a halogen group and many hydroxyl groups are bonded directly to a fullerene nucleus. In the case that the halogen group is chlorine, the fullerene derivative can be synthesized by a partial hydroxylation of a chlorinated fullerene or a partial chlorination of a hydroxylated fullerene.Type: GrantFiled: January 31, 2011Date of Patent: February 17, 2015Assignees: Osaka University, Totai Co., Ltd.Inventors: Ken Kokubo, Takeshi Noguchi
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Publication number: 20150011802Abstract: Provided are a novel fullerene derivative which can adsorb quickly and efficiently an allergen which may cause a pollen allergy without releasing the allergen again, does not contain a metal or the like which may cause a harmful effect to a human body, and is easily applicable, impregnable, or chemically bondable onto surface of various materials: and a process for producing the same. The fullerene derivative is characterized in that a halogen group and many hydroxyl groups are bonded directly to a fullerene nucleus. In the case that the halogen group is chlorine, the fullerene derivative can be synthesized by a partial hydroxylation of a chlorinated fullerene or a partial chlorination of a hydroxylated fullerene.Type: ApplicationFiled: September 24, 2014Publication date: January 8, 2015Applicants: Osaka University, Totai Co., Ltd.Inventors: Ken KOKUBO, Takeshi Noguchi
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Publication number: 20130041185Abstract: Provided are a novel fullerene derivative which can adsorb quickly and efficiently an allergen which may cause a pollen allergy without releasing the allergen again, does not contain a metal or the like which may cause a harmful effect to a human body, and is easily applicable, impregnable, or chemically bondable onto surface of various materials; and a process for producing the same. The fullerene derivative is characterized in that a halogen group and many hydroxyl groups are bonded directly to a fullerene nucleus. In the case that the halogen group is chlorine, the fullerene derivative can be synthesized by a partial hydroxylation of a chlorinated fullerene or a partial chlorination of a hydroxylated fullerene.Type: ApplicationFiled: January 31, 2011Publication date: February 14, 2013Applicants: Totai Co., Ltd., Osaka UniversityInventors: Ken Kokubo, Takeshi Noguchi
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Publication number: 20120195877Abstract: The object of the present invention is to provide a degradable composite material that contains at least one type of polysaccharide selected from chitin and chitosan, and has self-degrading capability. By supporting an enzyme capable of hydrolyzing chitin and chitosan on a molded article containing at least one type of polysaccharide selected therefrom, the polysaccharide can be slowly degraded in an environment where moisture is present such as a living body.Type: ApplicationFiled: October 7, 2009Publication date: August 2, 2012Applicants: TOTAI CO., LTD., THERMOSTABLE ENZYME LABORATORY CO., LTD.Inventors: Takashi Oku, Takeshi Noguchi
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Publication number: 20120197295Abstract: A bioabsorbable suture according to the present invention is characterized in that the suture is manufactured from monofilaments or multifilaments spun from a spinning raw solution containing one or two or more component(s) selected from the group consisting of chitin, chitosan, and derivatives thereof and a degrading enzyme for the component(s), and the degrading enzyme exists on a surface of the suture and in the suture.Type: ApplicationFiled: April 9, 2012Publication date: August 2, 2012Applicants: TOTAI CO., LTD., OMIKENSHI CO., LTD.Inventors: Masatoshi Yoshikawa, Hideki Kajita, Takeshi Noguchi, Juichi Kasai
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Patent number: 5928553Abstract: A sealed bag for microwave heating composed of a film having a fusing layer inside, said bag being sealed by fusing both sides of said film longitudinally with each other and both ends thereof laterally, wherein both sides of the film are turned outside to form two rows or turned-up faces, a turned-up line formed by said two rows of turned-up faces is covered with an easily openable fusing tape having an easily openable film inside and reinforced with a base material outside, said tape being fused with the turned-up faces of the film, and at least one end of the fusing tape not fused by a length which can be taken with fingers is left as a pick-up flap in the laterally fused area. When cooked food for a few people is hermetically packaged in this sealed bag and heated with a microwave oven, the bag is not broken until the internal temperature thereof approaches 100.degree. C.Type: GrantFiled: January 14, 1998Date of Patent: July 27, 1999Assignees: Kabushiki Kaisha Hoseki Planning, Sanwa Automatic Machinery Co., Ltd., Totai Co., Ltd.Inventors: Isao Toshima, Shinji Murata, Misao Kishi
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Patent number: 4373231Abstract: Apparatus for cutting the connecting portions of a sausage chain. A sausage chain, whose position is corrected by position correcting rollers arrayed in the form of an arc, is fed to a driving drum by a transferring means. Pressing rollers arranged to face the sausage receiving surface of the driving drum are adapted to convey the sausage chain in sliding contact therewith. The connecting portions of the sausage chain are cut by a cutter which is disposed along the sausage conveyance path. The pressing rollers may be idle, or they may be selectively idle or driven.Type: GrantFiled: December 31, 1980Date of Patent: February 15, 1983Assignee: Totai Co., Ltd.Inventor: Tetsuro Mano