Patents Assigned to Tochigi Kaneka Corporation
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Patent number: 11230087Abstract: Provided are heat insulating sheets that may include a resin film having a metal layer and a nonwoven fabric including resin fiber, wherein the resin film and the nonwoven fabric are joined by through holes penetrating the resin film and the nonwoven fabric, and wherein a ratio (La/Lb) of an average distance (La) between the through holes in the resin film to an average distance (Lb) between the through holes in the nonwoven fabric is 1.001 or more and 1.10 or less. Further provided are manufacturing methods of a heat insulating sheet that may include a resin film having a metal layer and a nonwoven fabric including a resin fiber.Type: GrantFiled: September 23, 2020Date of Patent: January 25, 2022Assignees: KANEKA CORPORATION, TOCHIGI KANEKA CORPORATIONInventors: Kazuaki Matsumoto, Hiroyuki Kikuchi, Shuzo Imai
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Publication number: 20210001605Abstract: Provided are heat insulating sheets that may include a resin film having a metal layer and a nonwoven fabric including resin fiber, wherein the resin film and the nonwoven fabric are joined by through holes penetrating the resin film and the nonwoven fabric, and wherein a ratio (La/Lb) of an average distance (La) between the through holes in the resin film to an average distance (Lb) between the through holes in the nonwoven fabric is 1.001 or more and 1.10 or less. Further provided are manufacturing methods of a heat insulating sheet that may include a resin film having a metal layer and a nonwoven fabric including a resin fiber.Type: ApplicationFiled: September 23, 2020Publication date: January 7, 2021Applicants: KANEKA CORPORATION, TOCHIGI KANEKA CORPORATIONInventors: Kazuaki Matsumoto, Hiroyuki Kikuchi, Shuzo Imai
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Patent number: 10099446Abstract: It has been difficult to achieve weight reduction while satisfying a required insulation property in a heat insulating material configured by alternately stacking a metal vapor-deposited sheet and a net. A heat insulating sheet comprises: a first thermal conduction suppressing layer that suppresses thermal conduction; a first radiant heat reflecting layer that is placed on one surface side of the first thermal conduction suppressing layer and reflects radiant heat; and a protruding portion protruding from a surface of the first radiant heat reflecting layer on an opposite side of a surface on which the first thermal conduction suppressing layer is stacked, the protruding portion containing a resin at least on its surface.Type: GrantFiled: July 10, 2015Date of Patent: October 16, 2018Assignees: KANEKA CORPORATION, TOCHIGI KANEKA CORPORATIONInventors: Tsuyoshi Kuman, Shuzou Imai, Atsushi Kumasaki, Masaharu Iwai
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Publication number: 20150314552Abstract: It has been difficult to achieve weight reduction while satisfying a required insulation property in a heat insulating material configured by alternately stacking a metal vapor-deposited sheet and a net. A heat insulating sheet comprises: a first thermal conduction suppressing layer that suppresses thermal conduction; a first radiant heat reflecting layer that is placed on one surface side of the first thermal conduction suppressing layer and reflects radiant heat; and a protruding portion protruding from a surface of the first radiant heat reflecting layer on an opposite side of a surface on which the first thermal conduction suppressing layer is stacked, the protruding portion containing a resin at least on its surface.Type: ApplicationFiled: July 10, 2015Publication date: November 5, 2015Applicants: TOCHIGI KANEKA CORPORATION, KANEKA CORPORATIONInventors: Tsuyoshi KUMAN, Shuzou IMAI, Atsushi KUMASAKI, Masaharu IWAI
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Publication number: 20080246572Abstract: In a magnet roller of the magnet piece bonding type, the main pole has a high magnetic flux density and the other pole has an asymmetric magnetic flux density pattern with respect to the magnetic flux density peak position. The magnet piece of the main pole is formed by injection molding while performing pole-anisotropic orientation of magnetic particles of the magnet piece. The magnet piece of the other pole is formed by extrusion molding while orientating the magnetic particles in a certain direction inclined by 5 degrees of more with respect to the center line of the radial direction of the magnet piece. The magnet roller is formed by combining the magnet piece of the main pole and the magnet piece of the other pole.Type: ApplicationFiled: May 23, 2005Publication date: October 9, 2008Applicants: KANEKA CORPORATION, TOCHIGI KANEKA CORPORATIONInventor: Masaharu Iwai
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Patent number: 6788178Abstract: A process for preparing a magnet roller comprising a plurality of bar-like magnet pieces in a high working efficiency and in an improved adhesion accuracy, which comprises the steps of regulating the bonding position of at least two magnet pieces by their outer peripheral surfaces and their end surfaces, applying an adhesive from the inner surface side of the magnet pieces to the adhesion faces of the magnet pieces for bonding one magnet piece to another magnet piece to form a magnet block, and bonding and fixing the magnet block to a shaft. At least one of the adhesion faces which are in contact with each other may have a plurality of grooves to facilitate penetration of the adhesive into the interface of adjacent two magnet pieces.Type: GrantFiled: June 18, 2003Date of Patent: September 7, 2004Assignees: Kaneka Corporation, Tochigi Kaneka CorporationInventors: Shingo Inase, Masami Hosokawa, Osamu Oshima, Masaharu Iwai
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Patent number: 6762665Abstract: The object is to provide a magnet roller whereby picture quality can be improved by raising the magnetic flux density of the specified magnetic pole and/or other magnetic poles, and wherein this magnetic pole pattern can be achieved with low cost. In a magnet roller (10) according to the invention that achieves this object, a plurality of magnet pieces (12, 14, 16, 18) are mounted at the periphery of a shaft (20) by joining at joining faces and peaks (32a, 34a, 36a, 38a) of magnetic poles (32, 34, 36, 38) are generated on the lines of extension of joining faces (13, 15, 17, 19) by setting the directions of orientation magnetization (22, 24, 26, 28) of adjacent magnet pieces (12, 14, 16, 18) facing the joining faces (13, 15, 17, 19), the respective joining faces (13, 15, 17, 19) of the plurality of magnet pieces (20) being provided along the roller radial directions.Type: GrantFiled: July 9, 2001Date of Patent: July 13, 2004Assignees: Kaneka Corporation, Tochigi Kaneka CorporationInventors: Masaharu Iwai, Masami Hosokawa
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Publication number: 20030234712Abstract: A process for preparing a magnet roller comprising a plurality of bar-like magnet pieces in a high working efficiency and in an improved adhesion accuracy, which comprises the steps of regulating the bonding position of at least two magnet pieces by their outer peripheral surfaces and their end surfaces, applying an adhesive from the inner surface side of the magnet pieces to the adhesion faces of the magnet pieces for bonding one magnet piece to another magnet piece to form a magnet block, and bonding and fixing the magnet block to a shaft. At least one of the adhesion faces which are in contact with each other may have a plurality of grooves to facilitate penetration of the adhesive into the interface of adjacent two magnet pieces.Type: ApplicationFiled: June 18, 2003Publication date: December 25, 2003Applicants: Kaneka Corporation, Tochigi Kaneka CorporationInventors: Shingo Inase, Masami Hosokawa, Osamu Oshima, Masaharu Iwai
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Patent number: 6337031Abstract: There is provided a resin magnet material that has excellent flame retardancy, produces only a small amount of toxic substances when ignited, and yields very few molding defects; as well as an electron beam adjustment apparatus in which this resin magnet material is used. To achieve this object, a first invention comprises a flame-retardant resin magnet material obtained by adding (Z) an alnico-based magnetic powder or a ferrite-based magnetic powder to a flame-retardant resin composition that is itself obtained by adding heat-resistant aluminum hydroxide and antimony trioxide to a polyamide resin in the following amounts: (A) per 100 weight parts polyamide resin, (B) X1 weight parts heat-resistant aluminum hydroxide with a decomposition temperature of 280° C. or higher (where 10 weight parts<X1<70 weight parts), and (C) X2 weight: parts antimony trioxide (where 40 weight parts<X2<270 weight parts).Type: GrantFiled: April 10, 2000Date of Patent: January 8, 2002Assignees: Kaneka Corporation, Tochigi Kaneka CorporationInventors: Takeshi Ida, Naoshi Marutani, Eiji Aoishi
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Patent number: 6043728Abstract: Provided are non-halogen, flame-resistant, resin materials and resin magnet materials, and also electron beam controllers comprising the resin magnet materials. The resin material comprises (A) a non-halogen resin composition, (B) a metal oxide hydrate, and (C) one or both of antimony trioxide and zinc borate. The resin magnet material comprises those components (A), (B) and C), and (D) a magnetic material. In the electron beam controller, the four-pole and 6-pole convergence magnets and the two-pole purity controller magnets are made of the resin magnet materials.Type: GrantFiled: December 22, 1997Date of Patent: March 28, 2000Assignees: Kaneka Corporation, Tochigi Kaneka CorporationInventors: Takeshi Ida, Naoshi Marutani