Patents by Inventor Takashi Fujimaki
Takashi Fujimaki 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).
-
Patent number: 11947263Abstract: A laser chamber of a discharge-excitation-type gas laser apparatus may include a container which contains laser gas therein; a pair of discharge electrodes arranged in the container; a cross flow fan configured to supply the laser gas to a discharge space between the discharge electrodes, the cross flow fan including a rotation shaft with which the cross flow fan rotates in a predetermined rotation direction and a plurality of blades, each longitudinal direction of which is parallel to an axial direction of the rotation shaft; and a stabilizer arranged outside a rotation trajectory of the cross flow fan, and arranged such that a difference between a maximum position and a minimum position of an end portion in the rotation direction on a side opposite to the rotation direction is larger than 0 and is smaller than an interval of two blades adjacent to each other among the plurality of blades.Type: GrantFiled: December 3, 2021Date of Patent: April 2, 2024Assignee: Gigaphoton Inc.Inventors: Makoto Tanaka, Yosuke Fujimaki, Takashi Ito, Yousuke Kawagoe
-
Publication number: 20200270422Abstract: A method for producing a modified polyester resin reinforced with carbon fiber, comprising reacting a mixture containing (A) 100 parts by weight of a thermoplastic polyester, (B) 5 to 150 parts by weight of a carbon fiber, (C) 0.1 to 2 parts by weight of a coupling agent consisting of a polyfunctional epoxy compound having two or more epoxy groups in a molecule and having a weight-average molecular weight of 2,000 to 10,000, (D) 0.01 to 1 part by weight of a coupling reaction catalyst, and (E) a spreader of 0.01 to 1 part by weight at a temperature equal to or more than a melting point of the thermoplastic polyester to increase a melt viscosity.Type: ApplicationFiled: May 14, 2020Publication date: August 27, 2020Applicant: FTEX, INCORPORATEDInventor: Takashi FUJIMAKI
-
Patent number: 9876364Abstract: This power receiving device includes a magnetic shield, and the magnetic shield includes: a first magnetic sheet located beside the power receiving unit; a conductive sheet located opposite to the power receiving unit with the first magnetic sheet interposed therebetween; and a second magnetic sheet located opposite to the first magnetic sheet with the conductive sheet interposed therebetween.Type: GrantFiled: March 13, 2015Date of Patent: January 23, 2018Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, KITAGAWA INDUSTRIES CO., LTD.Inventors: Takashi Fujimaki, Akira Mori, Toru Matsuzaki, Taichi Ishihara
-
Publication number: 20180016420Abstract: A method for producing a modified polyester resin reinforced with carbon fiber, comprising reacting a mixture containing (A) 100 parts by weight of a thermoplastic polyester, (B) 5 to 150 parts by weight of a carbon fiber, (C) 0.1 to 2 parts by weight of a coupling agent consisting of a polyfunctional epoxy compound having two or more epoxy groups in a molecule and having a weight-average molecular weight of 2,000 to 10,000, (D) 0.01 to 1 part by weight of a coupling reaction catalyst, and (E) a spreader of 0.01 to 1 part by weight at a temperature equal to or more than a melting point of the thermoplastic polyester to increase a melt viscosity.Type: ApplicationFiled: September 2, 2015Publication date: January 18, 2018Applicant: FTEX INCORPORATEDInventor: Takashi FUJIMAKI
-
Publication number: 20150270717Abstract: This power receiving device includes a magnetic shield, and the magnetic shield includes: a first magnetic sheet located beside the power receiving unit; a conductive sheet located opposite to the power receiving unit with the first magnetic sheet interposed therebetween; and a second magnetic sheet located opposite to the first magnetic sheet with the conductive sheet interposed therebetween.Type: ApplicationFiled: March 13, 2015Publication date: September 24, 2015Applicants: KITAGAWA INDUSTRIES CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takashi FUJIMAKI, Akira MORI, Toru MATSUZAKI, Taichi ISHIHARA
-
Production method of polyethylene terephthalate graft copolymerized resin and molded product thereof
Patent number: 8258239Abstract: The present invention provides a method of producing a polyethylene terephthalate graft copolymerized resin, comprising subjecting the following mixture to a homogeneous reaction at a temperature of 250° C. or higher to impart a high melt viscosity to the mixture, the mixture containing (A) 100 parts by weight of a polyethylene terephthalate polyester as a main material, (B) 0.01 to 2 parts by weight of a polymeric polyfunctional epoxy compound containing 7 to 100 epoxy groups in a molecule and having a molecular weight of 1,000 to 300,000 as a coupling agent, (C) 0.01 to 1 part by weight of a metal salt of an organic acid as a coupling reaction catalyst, and (D) 0 to 100 parts by weight of an aromatic alicyclic polyester and/or an aromatic aliphatic polyester each having a carboxyl group in an aromatic nucleus as an auxiliary material.Type: GrantFiled: December 28, 2007Date of Patent: September 4, 2012Assignee: Ftex, IncorporatedInventors: Takashi Fujimaki, Yoshitomo Urata, Hiroshi Shibano -
Patent number: 7993569Abstract: The present invention provides a method of manufacturing high-melting-tension heat-resistant transparent or opaque sheets, boards, and molds from polyethylene terephthalate (PET). The method is characterized in that a mixture of: (1) PET polyester whose melt flow rate (MFR) is 45-130 g/10 minutes (a); (2) coupling agent master batch (f) comprising coupling agent (d) and substrate (e), wherein coupling agent (d) is a mixture of compounds containing 2 epoxy groups (b) and compounds containing 3 or more epoxy groups (c); and (3) catalyst master batch (i) comprising coupling reaction catalyst (g) and substrate (h); is melted in a reaction-extruder to give PET polyester whose MFR is 40 g/10 minutes or less.Type: GrantFiled: August 27, 2004Date of Patent: August 9, 2011Assignees: FTEX, Incorporated, Nakamoto Packs Co., Ltd.Inventors: Yukio Kobayashi, Takashi Fujimaki, Takashi Nakamoto
-
PRODUCTION METHOD OF POLYETHYLENE TEREPHTHALATE GRAFT COPOLYMERIZED RESIN AND MOLDED PRODUCT THEREOF
Publication number: 20100201015Abstract: The present invention provides a method of producing a polyethylene terephthalate graft copolymerized resin, comprising subjecting the following mixture to a homogeneous reaction at a temperature of 250° C. or higher to impart a high melt viscosity to the mixture, the mixture containing (A) 100 parts by weight of a polyethylene terephthalate polyester as a main material, (B) 0.01 to 2 parts by weight of a polymeric polyfunctional epoxy compound containing 7 to 100 epoxy groups in a molecule and having a molecular weight of 1,000 to 300,000 as a coupling agent, (C) 0.01 to 1 part by weight of a metal salt of an organic acid as a coupling reaction catalyst, and (D) 0 to 100 parts by weight of an aromatic alicyclic polyester and/or an aromatic aliphatic polyester each having a carboxyl group in an aromatic nucleus as an auxiliary material.Type: ApplicationFiled: December 28, 2007Publication date: August 12, 2010Applicant: FTEX INCORPORATEDInventors: Takashi Fujimaki, Yoshitomo Urata, Hiroshi Shibano -
Publication number: 20100006214Abstract: Provided is a method of producing a transparent, heat-resistant, oil-resistant laminate name tag, which includes the steps of laminating a newly developed heat-resistant, oil-resistant polyethylene terephthalate (PET) resin and a adhesive polyolefin resin on each other to form a pouch film including a two-resin three-layered film (F), sandwiching a printed article (L4) having a moisture evaporation rate of 3% or less between the pouch films, and welding the resulting product by heating, in which the two-resin three-layered film (F) is formed of, from the outside: a first layer including a transparent, heat-resistant, stretched polyester film (L1); a second layer including a heat-resistant, oil-resistant, adhesive polyester film (L2); and a third layer including an adhesive polyolefin film (L3).Type: ApplicationFiled: October 2, 2007Publication date: January 14, 2010Applicant: FTEX INCORPORATEDInventors: Takashi Fujimaki, Kiyohiko Yamada
-
Publication number: 20070052131Abstract: A PET-based polyester packaging film capable of weld-cut sealing and heat-shrinkage refers to a film obtained by biaxially orienting a material prepared through block copolymerization of a PET/PETG/polyester elastomer with an epoxy resin and a catalyst. This film eliminates the most serious weak points in physical properties of conventional PET films, and is useful for packaging of books, bottlesets, food containers, etc., for general packaging, packaging of industrial materials, and the like, and is further useful in the field of packing and packaging of daily commodities, civil engineering and construction members, electric and electronic members, and automobile vehicle members, etc. Moreover, this film can be produced through effective use of the huge amount of recycled PET bottles and inexpensive PET for fiber as a prepolymer, and thus is also highly beneficial socially.Type: ApplicationFiled: September 21, 2004Publication date: March 8, 2007Applicant: NAKAMOTO PACKS CO., LTD.Inventors: Takashi Fujimaki, Yukio Kobayashi, Takashi Nakamoto, Hiroshi Shibano
-
Publication number: 20060043646Abstract: The present invention provides a method of manufacturing high-melting-tension heat-resistant transparent or opaque sheets, boards, and moulds from polyethylene terephthalate (PET). The method is characterised in that a mixture of: (1) PET polyester whose melt flow rate (MFR) is 45-130 g/10 minutes (a); (2) coupling agent master batch (f) comprising coupling agent (d) and substrate (e), wherein coupling agent (d) is a mixture of compounds containing 2 epoxy groups (b) and compounds containing 3 or more epoxy groups (c); and (3) catalyst master batch (i) comprising coupling reaction catalyst (g) and substrate (h); is melted in a reaction-extruder to give PET polyester whose MFR is 40 g/10 minutes or less.Type: ApplicationFiled: August 27, 2004Publication date: March 2, 2006Inventors: Yukio Kobayashi, Takashi Fujimaki, Takashi Nakamoto
-
Patent number: 6841106Abstract: The invention provides a method for producing a foamed article comprising the steps of: heating a mixture comprising (a) 100 parts by weight of linear saturated polyester, (b) 0.1 to 10 parts by weight of a mixture as a coupling agent of 0 to 100% by weight of a compound having two epoxy groups in the molecule, and 100 to 0% by weight of a compound having two or more epoxy groups, and (c) 0.01 to 5 parts by weight of a metal salt of a carboxylic acid as a coupling reaction catalyst, at a temperature of a melting point of the polyester or more to provide a melt flow rate of 50 g/10 minutes or less and swell of 10 to 200%, whereby a polyester resin is formed; and heating and foaming the polyester resin using a foaming agent .Type: GrantFiled: October 1, 1999Date of Patent: January 11, 2005Assignee: DJK Techno Science Laboratories, Inc.Inventors: Takashi Fujimaki, Yoshitomo Urata
-
Patent number: 6803442Abstract: The present invention provides a masterbatch method for producing a polyester resin and articles thereof; comprising reacting following materials uniformly at a temperature equal to or greater than the melting point of a polyester, the materials comprising: (1) 100 parts by weight of saturated straight-chain polyester A; (2) 1 to 10 parts by weight of binder masterbatch D comprising: a mixture containing a compound having two epoxy groups and a compound having an average number of epoxy groups of 2.1 or more; (3) 0.25 to 10 parts by weight of catalyst masterbatch G comprising: a metal carboxylate, whereby the melt viscosity of the polyester increases so that the melt flow rate (MFR) becomes 50 g/10 min or less, and the degree of swelling of the polyester increases to between 5% and 200%, thus resulting in a high-quality resin having excellent mechanical properties. The resin can be advantageously used for films, sheets, foamed materials, pipes, cushioning, heat insulators, packing materials, and so forth.Type: GrantFiled: December 3, 2002Date of Patent: October 12, 2004Assignee: FTEX, IncorporatedInventors: Takashi Fujimaki, Yukio Kobayashi, Yoshitomo Urata, Toshio Tanaka
-
Patent number: 6776182Abstract: A stop valve which is fitted with a cylindrical supporting portion is comprised of a ring-shaped rigid axial portion, a ring-shaped platy bendable valve portion extending outward, and a sealing lip portion extending inward. The sealing lip portion has a first sealing lip which extends obliquely upward from the rigid axial portion and has a semi-circular seal effecting face provided at an edge thereof, and a second sealing lip which extends obliquely downward from the rigid axial portion and has a semi-circular seal effecting face provided at an edge thereof. The first and second sealing lips have an extending portion which connects the edge seal effecting face with the rigid axial portion and has substantially a same thickness as a diameter of the semi-circular shape.Type: GrantFiled: October 28, 2002Date of Patent: August 17, 2004Assignee: Kyosan Denki Co., Ltd.Inventors: Akihiro Ishitoya, Takashi Fujimaki, Kimiyasu Kimura, Kenichi Ito
-
Publication number: 20030135015Abstract: The present invention provides a masterbatch method for producing a polyester resin and articles thereof; comprising reacting following materials uniformly at a temperature equal to or greater than the melting point of a polyester, the materials comprising: (1) 100 parts by weight of saturated straight-chain polyester A; (2) 1 to 10 parts by weight of binder masterbatch D comprising: a mixture containing a compound having two epoxy groups and a compound having an average number of epoxy groups of 2.1 or more; (3) 0.25 to 10 parts by weight of catalyst masterbatch G comprising: a metal carboxylate, whereby the melt viscosity of the polyester increases so that the melt flow rate (MFR) becomes 50 g/10 min or less, and the degree of swelling of the polyester increases to between 5% and 200%, thus resulting in a high-quality resin having excellent mechanical properties. The resin can be advantageously used for films, sheets, foamed materials, pipes, cushioning, heat insulators, packing materials, and so forth.Type: ApplicationFiled: December 3, 2002Publication date: July 17, 2003Inventors: Takashi Fujimaki, Yukio Kobayashi, Yoshitomo Urata, Toshio Tanaka
-
Publication number: 20030079776Abstract: A stop valve which is fitted with a cylindrical supporting portion is comprised of a ring-shaped rigid axial portion, a ring-shaped platy bendable valve portion extending outward, and a sealing lip portion extending inward. The sealing lip portion has a first sealing lip which extends obliquely upward from the rigid axial portion and has a semi-circular seal effecting face provided at an edge thereof, and a second sealing lip which extends obliquely downward from the rigid axial portion and has a semi-circular seal effecting face provided at an edge thereof. The first and second sealing lips have an extending portion which connects the edge seal effecting face with the rigid axial portion and has substantially a same thickness as a diameter of the semi-circular shape.Type: ApplicationFiled: October 28, 2002Publication date: May 1, 2003Applicant: Kyosan Denki Co., Ltd.Inventors: Akihiro Ishitoya, Takashi Fujimaki, Kimiyasu Kimura, Kenichi Ito
-
Patent number: 6506852Abstract: A method for producing a high molecular weight polyester having swell of 1-200 percent is described. In the method, a mixture consisting of (a) 100 parts by weight of a linear saturated polyester; (b) 0.3˜10 parts by weight of a mixture, as a coupling agent, which is composed of (1) 0-100 percent by weight of a bifunctional epoxide ingredient containing 2 epoxide groups per molecule and (2) 100-0 percent by weight of a polyfunctional epoxide ingredient containing 3 and more epoxide groups per molecule; and (c) 0.01˜5 parts by weight of metal salt of carboxylic acid as a catalyst for coupling reaction, is heated at a temperature higher than a melting point of said polyester resin.Type: GrantFiled: September 12, 2001Date of Patent: January 14, 2003Assignee: DJK Techno Science Laboratories, Inc.Inventors: Susumu Yoshimura, Takashi Tanabe, Katsuya Tokutomi, Takashi Fujimaki
-
Publication number: 20020035218Abstract: A method for producing a high molecular weight polyester having swell of 1-200 percent is described. In the method, a mixture consisting of (a) 100 parts by weight of a linear saturated polyester; (b) 0.3˜10 parts by weight of a mixture, as a coupling agent, which is composed of (1) 0-100 percent by weight of a bifunctional epoxide ingredient containing 2 epoxide groups per molecule and (2) 100-0 percent by weight of a polyfunctional epoxide ingredient containing 3 and more epoxide groups per molecule; and (c) 0.01˜5 parts by weight of metal salt of carboxylic acid as a catalyst for coupling reaction, is heated at a temperature higher than a melting point of said polyester resin.Type: ApplicationFiled: September 12, 2001Publication date: March 21, 2002Applicant: DJK TECHNO SCIENCE LABORATORIES INC.Inventors: Susumu Yoshimura, Takashi Tanabe, Katsuya Tokutomi, Takashi Fujimaki
-
Patent number: 5714569Abstract: An aliphatic polyester resin having a .lambda. value representing the magnitude of non-linearity of elongational viscosity of 1.5 to 8.0, said .lambda. value being defined by the following formula (1):.lambda.=.lambda..sub.1 /.lambda..sub.0 ( 1)wherein .lambda..sub.0 denotes the elongational viscosity at the transition point and .lambda..sub.1 denotes the elongational viscosity when strain become twice that of a transition point, said transition point meaning a point between a linear region, i.e., the infinitesimal-deformation region, and a non-linear region, i.e., the large-deformation region. According to the present invention, an aliphatic polyester resin having excellent formability and forming stability as well as good biodegradability is provided.Type: GrantFiled: August 21, 1996Date of Patent: February 3, 1998Assignees: Showa Denko K.K., Showa Highpolymer Co., Ltd.Inventors: Mitsuhiro Imaizumi, Hideharu Kimura, Ryutaro Fujihira, Yasushi Ichikawa, Jun Suzuki, Yoshihiro Moteki, Takashi Fujimaki, Eiichiro Takiyama
-
Patent number: 5658627Abstract: Stretched blow molding articles are prepared by using an aliphatic polyester composition having a melting point of at least 70.degree. C. including: 97.5 to 75 parts by weight of an aliphatic polyester copolymer (A) having a Mn of at least 50,000 which is obtained by reacting 100 parts by weight of a polyester diol (a) with 0.1 to 5 parts by weight of diisocyanate, wherein the polyester diol (a) is obtained by conducting a polycondensation of 1 mol of an acid component consisting of 70 to 90 mol % of succinic acid and 10 to 30 mol % of adipic acid, with 1 to 1.1 mol of glycol; and 2.5 to 25 parts by weight of potybutylene succinate (B) with a linear structure, (C) with a branched long chain structure, or (D) with a branched longer chain structure, which have an Mn of at least 50,000 and are composed from some of succinic acid, 1,4-butanediol, polyfunctional comonomer and di- or poly-functional coupling agents.Type: GrantFiled: September 26, 1995Date of Patent: August 19, 1997Assignees: Showa Highpower Co., Ltd., Toppan Printing Co., Ltd., Showa Denko K.K.Inventors: Takashi Fujimaki, Hiroshi Umeyama, Yoshihiro Moteki, Noriaki Harigai, Masayuki Taniguchi, Mitsuhiro Imaizumi, Thoru Watanabe, Toshiaki Hino