Patents by Inventor Masumi Hirata
Masumi Hirata 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: 20230143990Abstract: A medical instrument, comprising a flexible strap portion having a proximal end and a distal end; a head portion distally extending from and connected to the distal end of the strap portion; and a tail portion proximally extending from and connected to the proximal end of the strap portion; wherein the head portion and the strap portion have a locking feature that allows the strap portion to be tightened to the head portion at a desired position, a loop having a desired size composed of a distal end side part of the strap portion and the head portion can be formed when tightened by the locking feature, and a plurality of features for keeping connected to thread are along the longitudinal direction on at least the distal end side part of the strap portion that forms the loop.Type: ApplicationFiled: March 19, 2021Publication date: May 11, 2023Applicants: JICHI MEDICAL UNIVERSITY, TEIJIN MEDICAL TECHNOLOGIES CO., LTD.Inventors: Yuji Kaneda, Yasuhiro Kawabe, Katsuhiro Mikami, Masumi Hirata
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Publication number: 20230129423Abstract: A medical instrument, comprising a flexible band body having a distal end and a proximal end; a flexible first rod-shaped body having a distal end and a proximal end; and a flexible second rod-shaped body having a distal end and a proximal end, wherein the distal end of the band body and the proximal end of the first rod-shaped body are connected, the distal end of the first rod-shaped body and the proximal end of the second rod-shaped body are connected via a connecting portion, the band body is more flexible than the first rod-shaped body and the second rod-shaped body, the second rod-shaped body has a locking part, the band body has a locking corresponding part, when tightened the locking part and the locking corresponding part, the proximal end of the first rod-shaped body and the distal end of the second rod-shaped body are connected via a part of the band body, the connecting portion is inflected, and a loop having a desired size can be formed by the first rod-shaped body, the second rod-shaped body andType: ApplicationFiled: March 19, 2021Publication date: April 27, 2023Applicants: JICHI MEDICAL UNIVERSITY, TEIJIN MEDICAL TECHNOLOGIES CO., LTD.Inventors: Yuji Kaneda, Yasuhiro Kawabe, Katsuhiro Mikami, Masumi Hirata
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Patent number: 9556891Abstract: There is provided a joined body in which two or more members Yi including a fitting hole are fastened, in which a fastening rod including reinforcing fibers and a thermoplastic resin is positioned in the fitting hole, the fastening rod is caulked by heat, and the members Yi are caulking-fastened.Type: GrantFiled: February 27, 2015Date of Patent: January 31, 2017Assignee: Teijin LimitedInventors: Takashi Toyozumi, Masumi Hirata, Hiroki Sano, Takeru Ohki, Jianwei Shi
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Patent number: 9527230Abstract: There is provided a method for manufacturing a joint member obtained by joining a carbon fiber composite material containing a thermoplastic resin as a matrix and a metal. The method includes a step (i) of forming an uneven shape having a depth of 0.02 to 0.6 mm on a surface of the metal at a joining portion; a step (ii) of providing a thermoplastic resin layer having a thickness in the range of 5?m or more and 5 mm or less at a joining portion between the surface of the metal and a surface of the composite material; and a step (iii) of melting the thermoplastic resin layer by heating the joining portion to thereby combine the metal and the composite material into one.Type: GrantFiled: March 27, 2013Date of Patent: December 27, 2016Assignee: Teijin LimitedInventors: Masaki Takeuchi, Masumi Hirata, Takumi Kato, Hiroki Sano
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Publication number: 20160061245Abstract: There is provided a joined body in which two or more members Yi including a fitting hole are fastened, in which a fastening rod including reinforcing fibers and a thermoplastic resin is positioned in the fitting hole, the fastening rod is caulked by heat, and the members Yi are caulking-fastened.Type: ApplicationFiled: February 27, 2015Publication date: March 3, 2016Applicant: Teijin LimitedInventors: Takashi Toyozumi, Masumi Hirata, Hiroki Sano, Takeru Ohki, Jianwei Shi
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Publication number: 20150290911Abstract: A method of efficiently manufacturing a joined body in which a composite material including a thermoplastic resin reinforced with fiber and a metal member are joined to each other is provided. In a state of bringing a protrusion including a thermoplastic resin on a surface of the fiber-reinforced composite material into contact with a surface of the metal member, by melting the thermoplastic resin of the protrusion on the surface of the fiber-reinforced composite material, the fiber-reinforced composite material and the metal member are firmly joined to each other.Type: ApplicationFiled: July 4, 2013Publication date: October 15, 2015Applicant: Teijin LimitedInventors: Masumi Hirata, Hiroki Sano, Takumi Kato
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Publication number: 20150064409Abstract: There is provided a method for manufacturing a joint member obtained by joining a carbon fiber composite material containing a thermoplastic resin as a matrix and a metal. The method includes a step (i) of forming an uneven shape having a depth of 0.02 to 0.6 mm on a surface of the metal at a joining portion; a step (ii) of providing a thermoplastic resin layer having a thickness in the range of 5?m or more and 5 mm or less at a joining portion between the surface of the metal and a surface of the composite material; and a step (iii) of melting the thermoplastic resin layer by heating the joining portion to thereby combine the metal and the composite material into one.Type: ApplicationFiled: March 27, 2013Publication date: March 5, 2015Applicant: Teijin LimitedInventors: Masaki Takeuchi, Masumi Hirata, Takumi Kato, Hiroki Sano
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Publication number: 20150030864Abstract: There is provided a method for manufacturing a joint member in which a carbon fiber composite material containing a thermoplastic resin as a matrix and a metal are joined, wherein the joint member is manufactured by (i) treating a surface of the metal with a solution containing a specific triazine thiol derivative, (ii) providing a thermoplastic resin layer having a thickness of 5?m to 5 mm between the carbon fiber composite material and the surface of the metal on which the treatment is performed, and (iii) heating and melting the thermoplastic resin layer to join (fuse) the carbon fiber composite material to the surface of the metal.Type: ApplicationFiled: March 27, 2013Publication date: January 29, 2015Applicant: Teijin LimitedInventors: Masaki Takeuchi, Shuji Koike, Masumi Hirata, Takumi Kato, Hiroki Sano
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Publication number: 20130272780Abstract: A method for producing a joint member between a carbon fiber composite material containing a thermoplastic resin as a matrix and a metal, includes: forming a layer containing a triazine thiol derivative on a surface of the metal; providing a thermoplastic resin layer between the layer containing a triazine thiol derivative and the carbon fiber composite material; and melting the thermoplastic resin layer to join the metal to the carbon fiber composite material.Type: ApplicationFiled: May 29, 2013Publication date: October 17, 2013Inventors: Masaki Takeuchi, Toru Kaneko, Masumi Hirata, Takumi Kato, Hiroki Sano
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Patent number: 7947362Abstract: A carbon fiber composite sheet obtained by combining a carbon fiber aggregate with a thermosetting resin component selected from the group consisting of thermosetting silicone-based gel components, thermosetting epoxy resin components and thermosetting silicone resin components, and then curing the thermosetting resin component, the carbon fiber composite sheet having crystallite sizes of at least 5 nm in the direction of growth of the hexagonal mesh surface of the carbon fibers composing the carbon fiber aggregate, and the carbon fiber composite sheet having a thermal conductivity of at least 2 W/(m·K).Type: GrantFiled: April 26, 2007Date of Patent: May 24, 2011Assignee: Teijin LimitedInventors: Hiroshi Hara, Masumi Hirata, Hiroki Sano, Shoichi Takagi
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Patent number: 7767302Abstract: To provide a carbon fiber reinforcement having excellent thermal conductivity and mechanical properties which is manufactured by mixing together two different types of pitch-based carbon short fibers having a ratio of the degree of filament diameter distribution to average fiber diameter of 0.05 to 0.2 and a fiber length of 20 to 6,000 ?m which differ from each other in average fiber diameter or by mixing one of them with a pitch-based carbon fiber web to improve dispersibility into a matrix resin or increase the dispersion ratio of the pitch-based carbon short fibers.Type: GrantFiled: November 20, 2009Date of Patent: August 3, 2010Assignee: Teijin LimitedInventors: Masumi Hirata, Hiroshi Hara, Tetsuo Ban
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Patent number: 7700064Abstract: A carbon fiber having a total content of Li, Na, Ti, Mn, Fe, Ni and Co metal elements of no more than 50 ppm and a fiber diameter of 0.001 to 2 ?m and not branched and a assembly of a plurality of the carbon fibers.Type: GrantFiled: November 16, 2004Date of Patent: April 20, 2010Assignee: Teijin LimitedInventors: Hiroshi Sakurai, Tetsuo Ban, Masumi Hirata, Toru Sawaki
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Publication number: 20100068496Abstract: To provide a carbon fiber reinforcement having excellent thermal conductivity and mechanical properties which is manufactured by mixing together two different types of pitch-based carbon short fibers having a ratio of the degree of filament diameter distribution to average fiber diameter of 0.05 to 0.2 and a fiber length of 20 to 6,000 ?m which differ from each other in average fiber diameter or by mixing one of them with a pitch-based carbon fiber web to improve dispersibility into a matrix resin or increase the dispersion ratio of the pitch-based carbon short fibers.Type: ApplicationFiled: November 20, 2009Publication date: March 18, 2010Applicant: TEIJIN LIMITEDInventors: Masumi HIRATA, Hiroshi Hara, Tetsuo Ban
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Patent number: 7651767Abstract: To provide a carbon fiber reinforcement having excellent thermal conductivity and mechanical properties which is manufactured by mixing together two different types of pitch-based carbon short fibers having a ratio of the degree of filament diameter distribution to average fiber diameter of 0.05 to 0.2 and a fiber length of 20 to 6,000 ?m which differ from each other in average fiber diameter or by mixing one of them with a pitch-based carbon fiber web to improve dispersibility into a matrix resin or increase the dispersion ratio of the pitch-based carbon short fibers.Type: GrantFiled: April 13, 2006Date of Patent: January 26, 2010Assignee: Teijin LimitedInventors: Masumi Hirata, Hiroshi Hara, Tetsuo Ban
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Publication number: 20090233092Abstract: A carbon fiber composite sheet obtained by combining a carbon fiber aggregate with a thermosetting resin component selected from the group consisting of thermosetting silicone-based gel components, thermosetting epoxy resin components and thermosetting silicone resin components, and then curing the thermosetting resin component, the carbon fiber composite sheet having crystallite sizes of at least 5 nm in the direction of growth of the hexagonal mesh surface of the carbon fibers composing the carbon fiber aggregate, and the carbon fiber composite sheet having a thermal conductivity of at least 2 W/(m·K).Type: ApplicationFiled: April 26, 2007Publication date: September 17, 2009Applicant: TEIJIN LIMITEDInventors: Hiroshi Hara, Masumi Hirata, Hiroki Sano, Shoichi Takagi
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Patent number: 7585930Abstract: A method of decomposing a polycarbonate with water in a supercritical or subcritical state. A high-purity dihydroxy compound which is a constituent component of the polycarbonate can be recovered at a high yield by this decomposition method. This decomposition method is environment-friendly because it does not use an organic solvent, easy to be carried out, has a high decomposition rate and rarely causes a side reaction.Type: GrantFiled: February 8, 2005Date of Patent: September 8, 2009Assignee: Teijin LimitedInventors: Mai Kitahara, Masumi Hirata, Tetsuo Ban, Toru Sawaki
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Patent number: 7517832Abstract: Disclosed is a fibrous activated carbon wherein fine pores in the surface of the activated carbon have diameters of 0.1-200 nm and the activated carbon is in the form of fiber having a fiber diameter of not more than 1000 nm.Type: GrantFiled: September 16, 2004Date of Patent: April 14, 2009Assignee: Teijin LimitedInventors: Hiroshi Sakurai, Mai Kitahara, Masumi Hirata, Toru Sawaki
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Publication number: 20090075054Abstract: To provide a carbon fiber reinforcement having excellent thermal conductivity and mechanical properties which is manufactured by mixing together two different types of pitch-based carbon short fibers having a ratio of the degree of filament diameter distribution to average fiber diameter of 0.05 to 0.2 and a fiber length of 20 to 6,000 ?m which differ from each other in average fiber diameter or by mixing one of them with a pitch-based carbon fiber web to improve dispersibility into a matrix resin or increase the dispersion ratio of the pitch-based carbon short fibers.Type: ApplicationFiled: April 13, 2006Publication date: March 19, 2009Applicant: TEIJIN LIMITEDInventors: Masumi Hirata, Hiroshi Hara, Tetsuo Ban
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Publication number: 20090061193Abstract: A carbon fiber composite sheet comprising a pitch-based carbon fiber web and a matrix resin, wherein carbon fibers constituting the pitch-based carbon fiber web have a crystallite size in the hexagonal net plane direction of 5 nm or more and a thermal conductivity in the thickness direction of 1 W/(m·K) or more. This carbon fiber composite sheet is used for radio shielding and heat conduction.Type: ApplicationFiled: April 14, 2006Publication date: March 5, 2009Applicant: Teijin LimitedInventors: Hiroshi Hara, Masumi Hirata, Tetsuo Ban
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Publication number: 20070185309Abstract: A method of decomposing a polycarbonate with water in a supercritical or subcritical state. A high-purity dihydroxy compound which is a constituent component of the polycarbonate can be recovered at a high yield by this decomposition method. This decomposition method is environment-friendly because it does not use an organic solvent, easy to be carried out, has a high decomposition rate and rarely causes a side reaction.Type: ApplicationFiled: February 8, 2005Publication date: August 9, 2007Inventors: Mai Kitahara, Masumi Hirata, Tetsuo Ban, Toru Sawaki