Patents Assigned to Kitagawa Industries Co., Ltd.
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Patent number: 11958968Abstract: A thermally conductive material according to the present technology includes: 100 parts by mass of a crosslinking reaction product of an acrylic polymer (A) including at least two crosslinkable functional groups containing a carbon-carbon unsaturated bond and an acrylic polymer (B) including at least one of the crosslinkable functional groups; from 100 to 200 parts by mass of an acrylic polymer (C) with a viscosity of 650 mPa·s or less; from 150 to 350 parts by mass of a trimellitate ester plasticizer; from 3500 to 7500 parts by mass of a thermally conductive filler with an average particle size ranging from 0.1 ?m to 100 ?m; and from 50 to 300 parts by mass of a thickener with an average particle size of 50 nm or less.Type: GrantFiled: November 1, 2019Date of Patent: April 16, 2024Assignee: Kitagawa Industries Co., Ltd.Inventors: Hiroto Yoshino, Teruaki Yuoka
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Patent number: 11845860Abstract: A flame-retardant high-damping material includes 100 parts by mass of styrene elastomer; from 68 to 72 parts by mass of high-viscosity oil having a kinematic viscosity of 380 mm2/s or more at a temperature of 40° C.; from 72 to 132 parts by mass of melamine polyphosphate flame retardant; from 121 to 173 parts by mass of organic phosphinic acid metal salt flame retardant; and from 90 to 186 parts by mass of tackifying resin.Type: GrantFiled: February 14, 2019Date of Patent: December 19, 2023Assignee: Kitagawa Industries Co., Ltd.Inventor: Shinya Washino
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Patent number: 11690207Abstract: In a magnetic shield material including a magnetic layer containing a magnetic material and an electrically conductive layer containing an electrically conductive material, the electrically conductive layer is designed to have a thickness corresponding to a frequency band of electromagnetic wave to be shielded. More specifically, the thickness of the electrically conductive layer (thickness of the aluminum foil in the drawing) is designed to have a thickness to maximize magnetic field shield effect of the magnetic shield material (thickness of the aluminum foil corresponding to peak value frequency in curve E in the drawing) in a frequency band of electromagnetic wave to be shielded. This makes it possible to obtain good magnetic field shield effect of the magnetic shield material in the frequency band of electromagnetic wave to be shielded.Type: GrantFiled: November 14, 2019Date of Patent: June 27, 2023Assignee: Kitagawa Industries Co., Ltd.Inventor: Taichi Ishihara
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Patent number: 11646512Abstract: [Object] To provide a contact that can hold down effects caused by solder, even if an elastic contacting portion is extending from a location contacting a first member. [Solving means] The contact includes a base portion, an elastic contacting portion and a gap forming portion. The base portion is configured solderable on a component mounting surface of the first member. The elastic contacting portion is configured elastically deformable and relatively swingable with respect to the base portion, and when contacting a contacted surface of the second member, is configured to elastically deform to be in pressurized contact with the contacted surface.Type: GrantFiled: May 20, 2019Date of Patent: May 9, 2023Assignee: KITAGAWA INDUSTRIES CO., LTD.Inventors: Tetsuya Yada, Tatsuya Nakamura
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Patent number: 11519797Abstract: A gripping force measurement device includes a body portion and a plurality of pressure sensors. The plurality of pressure sensors includes at least one first sensor and two or more second sensors including pressure-sensitive surfaces oriented in the same direction. A pressure-sensitive surface of the first sensor and the pressure-sensitive surfaces of the two or more second sensors are disposed such that, when a subject pressurizes the pressure-sensitive surface of the first sensor and the pressure-sensitive surfaces of the two or more second sensors, the gripping force measurement device is grippable by the subject.Type: GrantFiled: December 28, 2018Date of Patent: December 6, 2022Assignees: Kitagawa Industries Co., Ltd., University of YamanashiInventors: Kazuki Yamada, Yasuo Kondo, Lu Zhao, Hidetsugu Terada, Koji Makino, Takaiki Kanagawa
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Patent number: 11511904Abstract: To provide a sticking apparatus capable of suppressing turning-up of an end of a sticking body. A sticking apparatus extrudes a sticking body from a tip in a protruding direction of a head member while moving the tip in a protruding direction of the head member along a target range, and sticks the sticking body to the target range. Extrusion speed of the sticking body becomes smaller than movement speed of the head member from a start of sticking of the sticking body with respect to the target range to a first time point, extrusion speed of the sticking body becomes larger than movement speed of the head member from the first time point to a second time point, and extrusion speed of the sticking body becomes smaller than movement speed of the head member from the second time point to sticking completion of the sticking body with respect to the target range.Type: GrantFiled: April 13, 2020Date of Patent: November 29, 2022Assignee: KITAGAWA INDUSTRIES CO., LTD.Inventors: Masahiro Saito, Naohiro Tachi, Satoshi Deguchi, Sakae Ushiwata, Masaru Yagi
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Patent number: 11452973Abstract: A reverse osmosis membrane of the present invention includes a porous support substrate (2) and a separation active layer (3) formed on a surface of the porous support substrate (2) and formed of a carbon film containing organized carbon.Type: GrantFiled: January 24, 2019Date of Patent: September 27, 2022Assignees: KITAGAWA INDUSTRIES CO., LTD., SHINSHU UNIVERSITYInventors: Hiroki Kitano, Akio Yamaguchi, Morinobu Endo, Josue Ortiz Medina
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Publication number: 20220290027Abstract: A thermally conductive elastomer composition of the present invention contains: 100 parts by mass of a styrene-based elastomer; from 610 to 750 parts by mass of a process oil formed of a petroleum-based hydrocarbon, the a process oil having a weight average molecular weight of not greater than 600; from 25 to 40 parts by mass of a solid nonionic surfactant having an HLB value of 2.0 or greater; from 260 to 640 parts by mass of aluminum hydroxide powder; and from 250 to 340 parts by mass of artificial graphite powder.Type: ApplicationFiled: April 22, 2020Publication date: September 15, 2022Applicant: KITAGAWA INDUSTRIES CO., LTD.Inventor: Tatsuya UCHIDA
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Patent number: 11309652Abstract: The present invention provides a contact with low impedance even in a high frequency band. The contact (1) includes a base part (3), a contact part (5), and a spring part (7). The spring part (7) is elastically deformed to bias the contact part (5) in the x-axis positive direction and the z-axis positive direction. The contact part (5) includes a sliding part (23A) oriented in the x-axis positive direction. The base part (3) includes a part to be slided (14) oriented in the x-axis negative direction. The contact part (5) is biased in the x-axis positive direction by the spring part (7), so that the sliding part (23A) is in pressure contact with the part to be slided (14). The contact part (5) is configured to be slidable in the z-axis direction relative to the base part (3) while maintaining a state in which the sliding part (23A) is in pressure contact with the part to be slided (14).Type: GrantFiled: January 11, 2019Date of Patent: April 19, 2022Assignee: Kitagawa Industries Co., Ltd.Inventors: Tatsuya Nakamura, Hiroyoshi Ishiguro
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Patent number: 11279820Abstract: A composition of the present invention includes: a styrene-based elastomer; a paraffin-based process oil; an olefin resin; a crosslinking agent including an organic peroxide; a crosslinking aid; an antioxidant; and a surface-treated filler obtained by surface treating particles formed from magnesium hydroxide with a higher fatty acid. The paraffin-based process oil has a kinematic viscosity at 40° C. of 300 mm2/s or greater. Furthermore, from 405 to 485 parts by mass of the paraffin-based process oil, from 9 to 13 parts by mass of the olefin resin, from 5 to 7 parts by mass of the crosslinking agent, from 13 to 15 parts by mass of the crosslinking aid, from 3 to 4 parts by mass of the antioxidant, and from 15 to 25 parts by mass of the surface-treated filler are respectively blended per 100 parts by mass of the styrene-based elastomer.Type: GrantFiled: September 20, 2017Date of Patent: March 22, 2022Assignee: KITAGAWA INDUSTRIES CO., LTD.Inventor: Shinya Washino
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Patent number: 11211195Abstract: A noise current absorber includes a pair of split magnetic bodies formed by equally splitting an annular magnetic body into an open annular shape, and a pair of housing parts capable of housing the split magnetic bodies. The pair of housing parts are coupled, and thus the pair of split magnetic bodies are abutted into an annular shape. The pair of housing parts include a first spring and a pair of second springs. The first spring is disposed in a central region of a bottom surface of the housing part facing the split magnetic body. The pair of second springs are disposed on both sides of the first spring.Type: GrantFiled: November 2, 2017Date of Patent: December 28, 2021Assignee: Kitagawa Industries Co., Ltd.Inventors: Hiroshi Aoyama, Hideharu Kawai
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Patent number: 11152731Abstract: The present invention provides a contact capable of suppressing an increase in a DC resistance value for a long period and a method of manufacturing the same. The contact includes a base portion and an elastic contact portion. The elastic contact portion includes a planar portion configured in a planar shape; and a projection portion that is disposed on one surface of the planar portion and protrudes from the one surface. The elastic contact portion is configured to come into pressed contact with the second surface at the projection portion. The projection portion is configured such that a dimensional ratio H/L of the height H to the length L satisfies 0.25?H/L?0.44, where H is a height in a direction perpendicular to the one surface and L is a length in a direction parallel to the one surface.Type: GrantFiled: March 25, 2019Date of Patent: October 19, 2021Assignee: Kitagawa Industries Co., Ltd.Inventors: Tatsuya Nakamura, Hiroyoshi Ishiguro
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Patent number: 11121494Abstract: A contact includes a thin plate member having elasticity and conductivity, is disposed between a first member and a second member, and electrically connects the first member and the second member via the thin plate member, and the contact includes a base portion and a movable portion. The base portion has a bonding surface to be bonded to the first member by soldering. The movable portion includes: a contact portion that contacts with the second member; and a connecting portion that connects to the base portion, and is configured to be elastically deformable with respect to the base portion. The connecting portion is gradually separated from the first member. A predetermined range from a connecting position of the connecting portion with the base portion is lower in solder wettability than the bonding surface.Type: GrantFiled: April 18, 2019Date of Patent: September 14, 2021Assignee: Kitagawa Industries Co., Ltd.Inventor: Tomohisa Kurita
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Patent number: 11088484Abstract: A contact member for which downsizing beyond conventional products is feasible is provided. The contact member includes a base portion, a contact portion, and a spring portion. The spring portion includes a first extension portion, a second extension portion, a third extension portion, and a fourth extension portion. The first extension portion is bent from a rear end of the base portion and extends upward. The second extension portion is bent from an upper end of the first extension portion and extends forward, and its upper surface is made to be a sucked surface that is capable of being attracted to a suction nozzle of an automatic mounting machine. The third extension portion is bent from a front end of the second extension portion and extends forward obliquely downward. The fourth extension portion is bent from a front end of the third extension portion, extends upward obliquely rearward, and is provided with the contact portion on a distal end side in its extension direction.Type: GrantFiled: April 24, 2020Date of Patent: August 10, 2021Assignee: KITAGAWA INDUSTRIES CO., LTD.Inventor: Tomohisa Kurita
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Patent number: 10995196Abstract: A thermally conductive sheet including: an acrylic polymer; a high-soda alumina in an amount of 70 to 75% by volume; and a magnesium hydroxide having a particle size smaller than a particle size of the high-soda alumina in an amount of 2.7 to 5.3% by volume, the magnesium hydroxide is coated with a higher fatty acid. The thermally conductive sheet has a compressive force required in a deformation with a compressibility of 20% or less of 200 N or less, and has a thermal resistance of 0.45° C./W or less.Type: GrantFiled: March 29, 2017Date of Patent: May 4, 2021Assignee: KITAGAWA INDUSTRIES CO., LTD.Inventors: Takashi Mizuno, Yasuhiro Kawaguchi
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Patent number: 10920808Abstract: A noise suppression member comprises a magnetic core and a case that houses the magnetic core therein. The case comprises a first housing and a second housing that form a housing space to house the magnetic core; a locking mechanism that allows the first housing and the second housing to be fixed to each other through engagement of a claw with a claw receiver; and a support receiver. The claw receiver comprises a movable portion displaceable to a first position and a second position, and the claw is released from the claw receiver when the movable portion is displaced to the second position. The movable portion is nondisplaceable to the second position when the support is inserted into the support receiver.Type: GrantFiled: November 16, 2016Date of Patent: February 16, 2021Assignee: Kitagawa Industries Co., Ltd.Inventor: Hiroshi Aoyama
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Patent number: 10916886Abstract: A connector fixture includes a fixture body and a positioning member. The fixture body includes a fixing portion, a retaining portion, and a contact portion. When the fixture body is attached to the first connector, the fixing portion determines the relative position between the fixture body and the first connector in a z-axis direction. The contact portion determines the relative position between the fixture body and the first connector in a y-axis direction. The positioning member determines the relative position between the fixture body and the first connector in an x-axis direction. The positioning member is configured to be separable from the fixture body.Type: GrantFiled: October 23, 2019Date of Patent: February 9, 2021Assignee: Kitagawa Industries Co., Ltd.Inventor: Yoshiaki Yanase
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Publication number: 20200386632Abstract: A gripping force measurement device includes a body portion and a plurality of pressure sensors. The plurality of pressure sensors includes at least one first sensor and two or more second sensors including pressure-sensitive surfaces oriented in the same direction. A pressure-sensitive surface of the first sensor and the pressure-sensitive surfaces of the two or more second sensors are disposed such that, when a subject pressurizes the pressure-sensitive surface of the first sensor and the pressure-sensitive surfaces of the two or more second sensors, the gripping force measurement device is grippable by the subject.Type: ApplicationFiled: December 28, 2018Publication date: December 10, 2020Applicants: Kitagawa Industries Co., Ltd., University of YamanashiInventors: Kazuki Yamada, Yasuo Kondo, Lu Zhao, Hidetsugu Terada, Koji Makino, Takaiki Kanagawa
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Patent number: 10851236Abstract: Provided is a grease-like thermally conductive material having excellent heat resistance including a non-silicone resin. Resolution Means: The composition for thermally conductive material of the present invention includes: an acrylic polymer (A) having at least two crosslinkable functional groups containing a carbon-carbon unsaturated bond; an acrylic polymer (B) having at least one of the crosslinkable functional groups; an anti-dripping agent; and a thermally conductive filler, a discharge amount being 1.50 g/min or more and 4.25 g/min or less as measured using a dispense controller under a predetermined discharge pressure condition.Type: GrantFiled: June 1, 2018Date of Patent: December 1, 2020Assignee: KITAGAWA INDUSTRIES CO., LTD.Inventors: Hiroto Yoshino, Teruaki Yuoka
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Patent number: D1009604Type: GrantFiled: December 20, 2021Date of Patent: January 2, 2024Assignee: KITAGAWA INDUSTRIES CO., LTD.Inventor: Yoshiaki Yanase