Patents Assigned to Nitta Corporation
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Patent number: 10005938Abstract: A thermosensitive adhesive contains a side chain crystal polymer having a melting point of 20-30° C., and a tackifier. The side chain crystal polymer is obtainable by adding a metal chelate compound in the following amount of addition (A) into the following copolymer, followed by a crosslinking reaction. Adhesive strength is to be deteriorated at a temperature below the melting point. The copolymer is obtainable by polymerizing 25-30 parts by weight of (meth)acrylate having a straight-chain alkyl group having 16 to 22 carbon atoms, 60-65 parts by weight of (meth)acrylate having an alkyl group having 1 to 6 carbon atoms, 1-10 parts by weight of a polar monomer, and 1-10 parts by weight of a reactive fluorine compound. The amount of addition (A) is 3-10 parts by weight with respect to 100 parts by weight of a copolymer.Type: GrantFiled: April 24, 2014Date of Patent: June 26, 2018Assignee: Nitta CorporationInventors: Minoru Nanchi, Koji Yamashita, Ayumi Nagao, Shinichiro Kawahara
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Patent number: 10001423Abstract: A pressure measurement device includes a platen, a pressure sensor, a signal acquisition section, and a data processing section. The pressure sensor includes a plurality of pressure-sensitive points arranged on the platen. The signal acquisition section is configured to acquire measurement data that is obtained when a measurement object in contact with a surface of the platen passes over the pressure sensor a plurality of times. The measurement object moves relative to the platen and along a circular orbit on the platen. The data processing section is configured to calculate periods in each of which the measurement object passes over the pressure sensor and to acquire period data for each of the periods from the measurement data.Type: GrantFiled: December 2, 2016Date of Patent: June 19, 2018Assignee: Nitta CorporationInventors: Hisashi Yamamoto, Akira Ozeki
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Patent number: 9925673Abstract: A power supplying module that can be reduced in size is provided. The power supplying module includes a module body, and a lead-in unit provided on one surface of the module body. The lead-in unit includes a plate unit that fixes at least one sealing tube to the one surface of the module body, and at least one circumference holding unit that holds a circumference of the corresponding sealing tube. The plate unit is provided with, in a longitudinal direction of the one surface of the module body, a plurality of cable insertion holes, and a plurality of positioning portions that position the plurality of circumference holding units to the corresponding cable insertion holes.Type: GrantFiled: December 9, 2015Date of Patent: March 27, 2018Assignee: NITTA CORPORATIONInventors: Hiroki Kikuchi, Nobuhiro Omote
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Patent number: 9862825Abstract: The thermoplastic resin composition according to the present invention includes a thermoplastic resin (A), and a modified ethylene copolymer (B) dispersed and contained therein, wherein the modified ethylene copolymer (B) in the thermoplastic resin composition has an average dispersed particle aspect ratio of 1 to 3.5, and an average dispersed particle diameter of not more than 3 ?m. The modified ethylene copolymer (B) is preferably a copolymer, modified with an unsaturated carboxylic acid or a derivative thereof, of ethylene with at least one monomer component selected from the group consisting of (i) olefin components except for ethylene, (ii) diene components and (iii) ester components having an ethylenically unsaturated group.Type: GrantFiled: March 29, 2012Date of Patent: January 9, 2018Assignee: NITTA CORPORATIONInventors: Toshiaki Kasazaki, Takahiko Yoshida, Shoji Shimizu, Shinsuke Uegaki, Yoko Onishi
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Publication number: 20170313878Abstract: The thermoplastic resin composition according to the present invention includes a thermoplastic resin (A), and a modified ethylene copolymer (B) dispersed and contained therein, wherein the modified ethylene copolymer (B) in the thermoplastic resin composition has an average dispersed particle aspect ratio of 1 to 3.5, and an average dispersed particle diameter of not more than 3 ?m. The modified ethylene copolymer (B) is preferably a copolymer, modified with an unsaturated carboxylic acid or a derivative thereof, of ethylene with at least one monomer component selected from the group consisting of (i) olefin components except for ethylene, (ii) diene components and (iii) ester components having an ethylenically unsaturated group.Type: ApplicationFiled: July 7, 2017Publication date: November 2, 2017Applicant: NITTA CORPORATIONInventors: Toshiaki KASAZAKI, Takahiko YOSHIDA, Shoji SHIMIZU, Shinsuke UEGAKI, Yoko ONISHI
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Publication number: 20170314188Abstract: Provided are a composite material and a reinforced fiber. The composite material includes a fiber and a plurality of carbon nanotubes disposed on a surface of the fiber. The carbon nanotubes adhere directly to the surface of the fiber.Type: ApplicationFiled: October 16, 2015Publication date: November 2, 2017Applicants: NITTA Corporation, NITTA CorporationInventors: Takuji Komukai, Maki Onizuka, Hiromi Teruhira, Katsuyuki Nakai
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Publication number: 20170307119Abstract: Provided is a connection mechanism between a valve and a joint is configured to connect a tube through the joint 1 to a housing 2 of the valve in air piping. The housing 2 of the valve includes a connection hole 22 for accommodating and connecting the joint 1. A tubular part 21 configured to attach a front end part of the tube thereto is formed inside the connection hole 22. The joint 1 includes a tube seal 11, a back ring 13 with a lock ring 12 including a claw 121 for preventing disengagement of the tube, a release ring 14, and a tubular cap 15. The joint 1 is configured to be press-inserted into the connection hole of the housing 2.Type: ApplicationFiled: September 14, 2015Publication date: October 26, 2017Applicant: NITTA CorporationInventor: Yasuaki TANIGUCHI
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Publication number: 20170248262Abstract: Provided is a connection mechanism for connecting a tube through a joint to a housing of a valve. At least one of the housing of the valve and the joint is made of a resin. The housing of the valve includes a connection hole for inserting and connecting the joint, and pin insertion holes which is drilled from an external surface of the housing in a direction orthogonal to an axial direction of the connection hole, and penetrates through the connection hole. An annular groove is formed along a circumferential direction of an outer peripheral surface of the joint. In an insertion state of the joint into the housing, the pin is inserted from the pin insertion holes on the external surface of the housing. The pin passes through the annular groove disposed on the joint and comes into engagement with the joint.Type: ApplicationFiled: September 14, 2015Publication date: August 31, 2017Applicant: NITTA CORPORATIONInventor: Yasuaki TANIGUCHI
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Publication number: 20170234468Abstract: Provided is a connection mechanism between a valve and a joint configured to connect a tube through the joint 1 to a housing 2 of the valve in air piping. The housing 2 of the valve includes a connection hole 22 configured to accept insertion and connection of the joint 1. The connection hole 22 includes a snap ring fitting groove 23 on an inner peripheral surface thereof. The joint 1 includes a snap ring receiving groove 31 on an outer peripheral surface thereof. In an inserted state of the joint 1 into the housing 2, a snap ring 3 in the receiving groove 31 is being fitted into the fitting groove 23.Type: ApplicationFiled: September 14, 2015Publication date: August 17, 2017Applicant: NITTA CORPORATIONInventor: Yasuaki TANIGUCHI
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Publication number: 20170211728Abstract: A caulking die according to an embodiment of the present invention includes an end surface being connected to each of an upper surface and a lower surface. The end surface includes a first protruded part including a first top portion, a recessed groove, and a second protruded part including a second top portion in sequential order from the lower surface side toward the upper surface side. A length of the second top portion is larger than a length of the first top portion, and a height of the second protruded part is larger than a height of the first protruded part in a cross-sectional view perpendicular to a width direction of the end surface. A caulking tool includes the caulking die. A method for manufacturing a caulking joint uses the caulking tool.Type: ApplicationFiled: January 26, 2017Publication date: July 27, 2017Applicant: NITTA CORPORATIONInventors: Shunichi NISHIWAKI, Koji NAKA, Mitsuhiro OKADA
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Patent number: 9624372Abstract: In the belt according to the present invention, the whole or a part of a belt body is formed from a thermoplastic resin composition (C) comprising a thermoplastic resin (A) and a modified ethylene copolymer (B) dispersed and contained therein. The modified ethylene copolymer (B) is preferably a copolymer, modified with an unsaturated carboxylic acid or a derivative thereof, of ethylene with at least one monomer component selected from (i) olefin components except for ethylene, (ii) diene components and (iii) ester components having an ethylenically unsaturated group. The belt according to the present invention hardly causes abrasion, damage, cracks, breakage and the like on the belt body and is remarkably excellent in durability, even if the belt is used at a high load for a long time.Type: GrantFiled: March 29, 2012Date of Patent: April 18, 2017Assignee: NITTA CORPORATIONInventors: Takahiko Yoshida, Shoji Shimizu, Akihiko Matsumoto
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Patent number: 9627791Abstract: A connector apparatus which can keep an electrical connection between signal pins in good condition; when a male member and female member are coupled together, first bumps of a first contact portion and second bumps of a second contact portion are brought into contact with each other, electrically connecting the first signal pins and second signal pins with each other. Measures are taken to bring tops and ridge lines of the second bumps into contact with lateral faces of the first bumps. Also, the first signal pins and second signal pins are configured to be pivotable. During connection, contact area is increased by contact between the lateral faces of the first bumps and the tops and ridge lines of the second bumps, causing rubbing between the lateral faces and the tops and ridge lines, and thereby pushing aside and rubbing off sticking spatter, oxide films, contamination, and the like.Type: GrantFiled: March 28, 2016Date of Patent: April 18, 2017Assignee: Nitta CorporationInventors: Hiroki Kikuchi, Kenji Tsurimoto, Hideki Nishio, Ryosuke Matsumoto
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Patent number: 9616369Abstract: An inertial filter to be disposed in the air flow path of a stream of air containing nanoparticles includes plural particle classifying sheets having plural mesh-like holes are disposed in the air flow path. The plural particle classifying sheets are stacked on each other in a manner that a part of at least one of the particle classifying sheets overlaps with the other particle classifying sheet. The inertial filter can adjust a classification diameter by adjusting a shadow area ratio on a projection view obtained by virtually projecting the plural particle classifying sheets from a downstream side to an upstream side of the air flow path.Type: GrantFiled: August 8, 2011Date of Patent: April 11, 2017Assignee: NITTA CORPORATIONInventors: Takuji Ikeda, Yoshio Otani, Masami Furuuchi, Takafumi Seto
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Patent number: 9598617Abstract: Disclosed is an acrylate based adhesive composition for optical use that includes: a copolymer prepared by polymerizing an alkyl (meth)acrylate (wherein the alkyl is a C16 to C22 linear alkyl group) in an amount of about 1 to about 10 parts by weight, an alkyl (meth)acrylate (wherein the alkyl is a C1 to C12 alkyl group) in an amount of about 70 to about 98 parts by weight, and a polar monomer in an amount of about 1 to about 20 parts by weight; and a cross-linking agent. The cross-linking agent is included in an amount of about 0.5 to 5 parts by weight based on 100 parts by weight of the copolymer.Type: GrantFiled: December 1, 2015Date of Patent: March 21, 2017Assignees: Samsung Display Co., Ltd., NITTA CORPORATIONInventors: Dong-Sun Lee, Sang-Hyun Lim, Dae-Guen Choi, Hak-Sun Kim, Shinichiro Kawahara, Minoru Nanchi, Keisuke Sako, Yuta Irie, Satoshi Yamaguchi
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Publication number: 20170074350Abstract: An endless flat belt includes an inner rubber layer 1, a cord core 11 buried in the inner rubber layer 1 and spirally wound at a predetermined pitch in a width direction of the belt, and a reinforcement fabric 2 stuck to the inner rubber layer 1. The cord core comprises polyamide fiber. Opposite ends of the reinforcement fabric 2 are connected with each other into an endless form by adhesion or sewing. A surface rubber layer 3 is stuck to a surface of the reinforcement fabric 2 which is opposite a surface thereof stuck to the inner rubber layer 1.Type: ApplicationFiled: May 14, 2015Publication date: March 16, 2017Applicant: NITTA CORPORATIONInventors: Haruhide OKAMURA, Yoshihiro KONISHI, Mitsuaki ONO, Naomichi NAKAI, Naoki KAI
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Publication number: 20170044369Abstract: In the belt according to the present invention, the whole or a part of a belt body is formed from a thermoplastic resin composition (C) comprising a thermoplastic resin W and a modified ethylene copolymer (B) dispersed and contained. therein. The modified ethylene copolymer (B) is preferably a copolymer, modified with an unsaturated carboxylic acid or a derivative thereof, of ethylene with at least one monomer component selected from (i) olefin components except for ethylene, (ii) diene components and (iii) ester components having an ethylenically unsaturated group. The belt according to the present invention hardly causes abrasion, damage, cracks, breakage and the like on the belt body and is remarkably excellent in durability, even if the belt is used at a high load for a long time.Type: ApplicationFiled: October 28, 2016Publication date: February 16, 2017Applicant: NITTA CORPORATIONInventors: Takahiko YOSHIDA, Shoji SHIMIZU, Akihiko MATSUMOTO
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Publication number: 20170030507Abstract: The present invention provides a joint cover capable of improving working efficiency in mounting a joint cover on a joint. A joint cover provided on the outside of a joint includes a first cover body provided with an opening and adapted to house one side of the joint; and a second cover body detachably attachable to the first cover body, wherein a dividing position formed when the first cover body and the second cover body are in contact with each other is offset toward the second cover body.Type: ApplicationFiled: December 18, 2014Publication date: February 2, 2017Applicant: Nitta CorporationInventors: Masatsugu Okada, Satoru Hosotani
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Publication number: 20160325316Abstract: A wiper is made up of an attachment member to be attached to a machine tool, a wiper body formed integrally with the attachment member, a bent-shaped lip support part made of an elastic material and disposed at a lower end of the wiper body, and a lip part connected to the wiper body with the lip support part interposed therebetween. A lip front end portion of the lip part, a tip of which comes into contact with a sliding surface of the machine tool, is made of an elastic material containing an additive material for reinforcement.Type: ApplicationFiled: December 25, 2014Publication date: November 10, 2016Applicant: NITTA CORPORATIONInventors: Tomohisa SHIMADA, Yoshihiro KONISHI, Takeshi KUBOTA, Yoshiyuki YAMAMOTO, Yukio TERAGUCHI
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Patent number: 9488255Abstract: A ball screw including: a male component having male grooves on an outer periphery for a ball to roll; a female component fitted together with the male component in an axial direction having female grooves facing the male grooves on an inner periphery for the ball to roll and a circulation path for the ball to circulate; and a seal member at one end, at the other end, or at each of one and the other ends of the female component in the axial direction and including a hole capable of communicating with the inner periphery, a fiber layer having a fitting surface having a convex part capable of being fitted in the male grooves when the male component is inserted into the hole and a surface made of fibers impregnated with rubber or resin, and a rubber or resin layer laminated on a surface opposite to the fitting surface.Type: GrantFiled: December 9, 2014Date of Patent: November 8, 2016Assignee: NITTA CORPORATIONInventors: Yoji Ishizaki, Yoshiharu Kiyohara, Kenichiro Aoki, Katsuyuki Nakai, Yasuhiro Aoki, Toshihiko Kojima, Mitsuhiro Yamada, Takuya Taira
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Patent number: D822727Type: GrantFiled: February 21, 2017Date of Patent: July 10, 2018Assignee: Nitta CorporationInventors: Ryosuke Matsumoto, Hiroki Kikuchi