公开(公告)号：US20160242272A1

公开(公告)日：2016-08-18

申请号：US15134526

申请日：2016-04-21

Applicant: Kitagawa Industries Co., Ltd. ,  TYK Corporation

Inventor： Yasuhiro KAWAGUCHI ,  Masataka KUBO

IPC: H05K1/02 ,  F28F21/04

CPC classification number: H05K1/0203 ,  F28F13/003 ,  F28F21/04 ,  H01L23/3733 ,  H01L2924/0002 ,  H01L2924/00

Abstract: An electronic circuit of the present invention includes: a circuit board on which an electronic component is mounted; a heat conducting sheet stacked on the electronic component; and a heat sink stacked on the heat conducting sheet. The heat sink includes a porous ceramics having a volume resistivity of 1010 Ohm·cm or more and a porosity of 15-50 vol %.

公开(公告)号：US12104116B2

公开(公告)日：2024-10-01

申请号：US17619041

申请日：2020-04-22

Applicant: KITAGAWA INDUSTRIES CO., LTD.

Inventor： Tatsuya Uchida

IPC: C09K5/14 ,  C08L91/00 ,  H01L23/36

CPC classification number: C09K5/14 ,  C08L91/00 ,  C08L2207/322 ,  H01L23/36

Abstract: 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.

公开(公告)号：US11958968B2

公开(公告)日：2024-04-16

申请号：US17291600

申请日：2019-11-01

Applicant: Kitagawa Industries Co., Ltd.

Inventor： Hiroto Yoshino ,  Teruaki Yuoka

IPC: C08L35/02 ,  C08K3/22 ,  C08K3/26 ,  C08K5/12 ,  C08L33/14 ,  C09K5/14

CPC classification number: C08L35/02 ,  C08K3/22 ,  C08K3/26 ,  C08K5/12 ,  C08L33/14 ,  C08K2003/2227 ,  C08K2003/265 ,  C08K2201/001 ,  C08K2201/005 ,  C08K2201/011 ,  C08L2205/03 ,  C09K5/14

Abstract: 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 μm to 100 μm; and from 50 to 300 parts by mass of a thickener with an average particle size of 50 nm or less.

公开(公告)号：US11519797B2

公开(公告)日：2022-12-06

申请号：US15733233

申请日：2018-12-28

Applicant: Kitagawa Industries Co., Ltd. ,  University of Yamanashi

Inventor： Kazuki Yamada ,  Yasuo Kondo ,  Lu Zhao ,  Hidetsugu Terada ,  Koji Makino ,  Takaiki Kanagawa

IPC: G01L1/00 ,  G01L1/22 ,  A61B5/22 ,  G01L5/00

Abstract: 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.

公开(公告)号：US11452973B2

公开(公告)日：2022-09-27

申请号：US16771091

申请日：2019-01-24

Applicant: KITAGAWA INDUSTRIES CO., LTD. ,  SHINSHU UNIVERSITY

Inventor： Hiroki Kitano ,  Akio Yamaguchi ,  Morinobu Endo ,  Josue Ortiz Medina

IPC: B01D71/02 ,  C01B32/05 ,  B01D61/02 ,  B01D67/00 ,  B01D69/10 ,  C02F1/44 ,  C02F101/12 ,  C02F103/08 ,  C23C14/06

Abstract: 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.

公开(公告)号：US11309652B2

公开(公告)日：2022-04-19

申请号：US16962333

申请日：2019-01-11

Applicant: KITAGAWA INDUSTRIES CO., LTD.

Inventor： Tatsuya Nakamura ,  Hiroyoshi Ishiguro

IPC: H01R13/02 ,  H01R13/28 ,  H01R13/24 ,  H01R13/58

Abstract: 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).

公开(公告)号：US11121494B2

公开(公告)日：2021-09-14

申请号：US16982325

申请日：2019-04-18

Applicant: Kitagawa Industries Co., Ltd.

Inventor： Tomohisa Kurita

IPC: H01R4/48 ,  H01R13/24 ,  H01R4/02

Abstract: 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.

公开(公告)号：US10995196B2

公开(公告)日：2021-05-04

申请号：US16093299

申请日：2017-03-29

Applicant: KITAGAWA INDUSTRIES CO., LTD.

Inventor： Takashi Mizuno ,  Yasuhiro Kawaguchi

IPC: C08K3/22 ,  B29C43/06 ,  B29C43/46 ,  C08J5/18 ,  H05K7/20 ,  H01L21/48 ,  C08J3/18 ,  H01L23/373 ,  B29C43/00 ,  B29C43/18 ,  B32B27/08 ,  B32B27/18 ,  B32B27/30 ,  C08K5/00 ,  B29K33/00 ,  B29K509/02

Abstract: 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.

公开(公告)号：US20210013656A1

公开(公告)日：2021-01-14

申请号：US16982316

申请日：2019-03-25

Applicant: Kitagawa Industries Co., Ltd.

Inventor： Tatsuya NAKAMURA ,  Hiroyoshi ISHIGURO

IPC: H01R13/24 ,  H01R43/16 ,  H01R12/57

Abstract: 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.

公开(公告)号：US10851236B2

公开(公告)日：2020-12-01

申请号：US16617053

申请日：2018-06-01

Applicant: KITAGAWA INDUSTRIES CO., LTD.

Inventor： Hiroto Yoshino ,  Teruaki Yuoka

IPC: C08L33/14 ,  C08J3/20 ,  C08J3/24

Abstract: 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.