Patents Assigned to The Furukawa Electric Co., Ltd.
-
Publication number: 20230108567Abstract: An adhesive composition containing an epoxy resin (A), an epoxy resin curing agent (B), a phenoxy resin (C), and an inorganic filler (D), in which the phenoxy resin (C) has an elastic modulus of 500 MPa or more at 25° C., a proportion of the phenoxy resin (C) in a total content of the epoxy resin (A) and the phenoxy resin (C) is 10 to 60 mass%, a nanoindentation hardness at 25° C. of a film-like adhesive before curing formed using the adhesive composition is 0.10 MPa or more, and the Young’s modulus at 25° C. of a film-like adhesive before curing formed using the adhesive composition is 100 MPa or more; a film-like adhesive using the adhesive composition; and a semiconductor package using the film-like adhesive and a producing method thereof.Type: ApplicationFiled: October 20, 2022Publication date: April 6, 2023Applicant: FURUKAWA ELECTRIC CO., LTD.Inventor: Minoru MORITA
-
Publication number: 20230103477Abstract: A resin reflective film, which containing two or more kinds of regions having different refractive indexes from each other, in which a film thickness of the resin film 20 to 5,000 µm, and a total reflectance is 60% or more and a diffuse reflectance is 60% or more for deep ultraviolet rays having a wavelength of 220 to 300 nm.Type: ApplicationFiled: November 29, 2022Publication date: April 6, 2023Applicants: FURUKAWA ELECTRIC CO., LTD., DAIKIN INDUSTRIES, LTD.Inventors: Yutaka OKITA, Daiki TAKEMURA, Yousuke KOKUBO, Jirou HIROISHI, Takuya ARASE, Tatsuya HIGUCHI, Akinari SUGIYAMA
-
Publication number: 20230106794Abstract: A heat sink includes: a container having a cavity inside and a first surface and a second surface opposite the first surface; a working fluid encapsulated in the cavity; and a steam flow path in the cavity where the working fluid in a gas phase flows, the first surface having a flat part and a protruding part projecting from the flat part in an external direction, causing the container to have a flat portion and a protruding portion projecting from the flat portion in the external direction, an inner space of the protruding portion of the container being in communication with an inner space of the flat portion, causing the cavity to be formed, and a first heat radiating fin being provided on an exterior of the flat part of the first surface and a second heat radiating fin being provided on an exterior of the second surface.Type: ApplicationFiled: October 21, 2022Publication date: April 6, 2023Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Kenya Kawabata, Masahiro Meguro, Ryo Tsubata, Hirofumi Aoki, Yoshikatsu Inagaki, Hiroshi Sakai, Hideaki Kawabata
-
Publication number: 20230096039Abstract: A busbar includes: a plurality of members that are platy; and a welding area in which two of the members are welded, the welding area being linear and extending in a first direction, the welding area being provided approximately between both ends of at least one of the two members in the first direction.Type: ApplicationFiled: December 5, 2022Publication date: March 30, 2023Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Daeyoul YOON, Kazuyuki UMENO, Masamitsu KANEKO, Jun TERADA, Fumika NISHINO, Nobuyasu MATSUMOTO, Tomomichi YASUOKA, Jiang LI
-
Publication number: 20230101343Abstract: A welding method includes: irradiating a plurality of metal foils stacked on a first surface of a metal member in a first direction with laser light to weld the metal member and the plurality of metal foils to each other, the laser light including first laser light having a wavelength of 800 [nm] or more and 1200 [nm] or less and second laser light having a wavelength of 550 [nm] or less, a second surface of a metal foil farthest from the metal member in the first direction among the plurality of metal foils, on a side opposite to the metal member, being irradiated with the laser light.Type: ApplicationFiled: December 1, 2022Publication date: March 30, 2023Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Nobuyasu MATSUMOTO, Fumika NISHINO, Masamitsu KANEKO, Kazuyuki UMENO, Jun TERADA, Daeyoul YOON, Tomomichi YASUOKA, Sayo SUGA, Toshiaki SAKAI
-
Publication number: 20230102800Abstract: Provided herein is an example heat sink including a heat dissipation unit including a plurality of heat dissipation fin groups including a plurality of heat dissipation fins, the plurality of heat dissipation fin groups forming a laminated structure and a plurality of heat pipes, one end portions of which are thermally connected to a heating element and other end portions of which are inserted into a space provided between the plurality of heat dissipation fin groups forming the laminated structure and thermally connected to the heat dissipation unit.Type: ApplicationFiled: October 28, 2022Publication date: March 30, 2023Applicant: Furukawa Electric Co., Ltd.Inventors: Yasuyuki TOCHIGI, Masahiro MEGURO, Hiroshi SAKAI, Kenya KAWABATA
-
Patent number: 11613110Abstract: A laminate, containing two or more polyolefin resin layers, wherein at least one polyolefin resin layer (A) contains a cellulose fiber including a cellulose fiber having a fiber length of 0.3 mm or more dispersed in the layer; a content of the cellulose fiber in the polyolefin resin layer (A) is 1% by mass or more and less than 60% by mass; and wherein a polyolefin resin layer (B) different from the polyolefin resin layer (A) is laminated in contact with the polyolefin resin layer (A).Type: GrantFiled: April 9, 2021Date of Patent: March 28, 2023Assignee: FURUKAWA ELECTRIC CO., LTD.Inventors: Masami Tazuke, Toshihiro Suzuki, Hidekazu Hara, Jirou Hiroishi, Jae Kyung Kim, Masato Ikeuchi, Jiro Sakato
-
Patent number: 11605935Abstract: An optical semiconductor device outputting a predetermined wavelength of laser light includes a quantum well active layer positioned between a p-type cladding layer and an n-type cladding layer in thickness direction. The optical semiconductor device includes a separate confinement heterostructure layer positioned between the quantum well active layer and the n-type cladding layer. The optical semiconductor device further includes an electric-field-distribution-control layer positioned between the separate confinement heterostructure layer and the n-type cladding layer and configured by at least two semiconductor layers having band gap energy greater than band gap energy of a barrier layer constituting the quantum well active layer. The optical semiconductor device is applied to a ridge-stripe type laser.Type: GrantFiled: February 26, 2021Date of Patent: March 14, 2023Assignee: FURUKAWA ELECTRIC CO., LTD.Inventors: Junji Yoshida, Hirokazu Itoh, Satoshi Irino, Yuichiro Irie, Taketsugu Sawamura
-
Publication number: 20230070010Abstract: A terminal-equipped electric wire includes a terminal and a coated conductive wire, which are electrically connected to each other. A crimp part of the terminal is crimped to the coated conductive wire, and has a conductive wire crimp part, which is crimped to a conductive wire that is exposed from a coating on the front-end side of the coated conductive wire, and a coating crimp part, which is crimped to the coating of the coated conductive wire. On the front-end side (terminal body side) of the conductive wire crimp part, an electric wire holding part, which applies a relatively strong holding force on the conductive wire, is provided, On the rear-end side (coating crimp part side) of the conductive wire crimp part, a conductive part for achieving conduction with the conductive wire is formed.Type: ApplicationFiled: November 10, 2022Publication date: March 9, 2023Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.Inventors: Hirofumi KAWANAKA, Tetsuya HIRAIWA, Junya TAKESHITA, Hirokazu TAKAHASHI, Kengo MITOSE, Yoshinari MOTOYAMA
-
Patent number: 11597818Abstract: The present disclosure relates to a molded article provided with a resin part formed with a thermoplastic resin composition. The thermoplastic resin composition containing thermoplastic resins and cellulose, wherein at least one of the thermoplastic resins is a resin having in a polymer molecule at least one group selected from a group containing a partial structure of an acid anhydride and a group containing an acylated cellulose structure.Type: GrantFiled: March 27, 2020Date of Patent: March 7, 2023Assignee: Furukawa Electric Co., Ltd.Inventors: Jaekyung Kim, Kenichi Suyama, Yasuo Nakajima, Eiji Kozawa
-
Patent number: 11597817Abstract: A thermoplastic resin composition, containing a thermoplastic synthetic resin, a cellulose and an ionic compound; in which a content of the cellulose is from 1 to 100 parts by mass, with respect to 100 parts by mass of the thermoplastic synthetic resin, and a content of the ionic compound is 0.001 times or more and less than 1.000 time of the content of the cellulose; a method of producing a thermoplastic resin composition; a molded article of a cellulose-reinforced resin; and a method of producing a molded article of a cellulose-reinforced resin.Type: GrantFiled: September 27, 2018Date of Patent: March 7, 2023Assignee: FURUKAWA ELECTRIC CO., LTDInventors: Eiji Kozawa, Takeshi Yagi, Yasuo Nakajima, Jae Kyung Kim
-
Patent number: 11597826Abstract: A cellulose-fiber-dispersing polyolefin resin composite material, containing a polyolefin resin containing a polypropylene resin, and a cellulose fiber dispersed in the polyolefin resin, in which a proportion of the cellulose fiber is 1 mass part or more and 70 mass parts or less in a total content of 100 mass parts of the polyolefin resin and the cellulose fiber, and the water absorption ratio satisfies the following Formula: (Water absorption ratio [%])<(Cellulose effective mass ratio [%])2×0.01; a pellet and a formed body using this composite material; and a production method for this composite material.Type: GrantFiled: February 21, 2020Date of Patent: March 7, 2023Assignee: FURUKAWA ELECTRIC CO., LTD.Inventors: Hidekazu Hara, Jirou Hiroishi, Yuka Sawada, Masami Tazuke, Toshihiro Suzuki
-
Publication number: 20230069333Abstract: A vapor chamber has: a container in which a cavity portion is formed in an inside; a wick structure provided in the cavity portion; a working fluid enclosed in the cavity portion; a vapor flow path which is formed in the cavity portion and through which the working fluid in a gas phase flows; and a hydrogen occlusion metal that is disposed in the cavity portion and absorbs hydrogen at 350° C. or lower and does not release hydrogen at 350° C. or lower, the hydrogen occlusion metal being coated in a region in contact with the working fluid in an inner surface of the cavity portion and/or the wick structure.Type: ApplicationFiled: November 8, 2022Publication date: March 2, 2023Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Yoshikatsu INAGAKI, Hirofumi AOKI
-
Patent number: 11591235Abstract: The present disclosure relates to a method for producing metal oxide nanoparticles includes a first step of preparing a reaction solution containing a metal complex, an alcohol, and water; a second step of heating the reaction solution for phase-separation under a hermetically sealed atmosphere where the volumetric expansion ratio of the reaction solution reaches 5 to 15%; a third step of holding the reaction solution heated in the second step for 30 minutes or more for dehydrating the metal complex to precipitate the metal oxide nanoparticles; and a fourth step of collecting the metal oxide nanoparticles after the metal oxide nanoparticles are cooled.Type: GrantFiled: January 23, 2020Date of Patent: February 28, 2023Assignees: FURUKAWA ELECTRIC CO., LTD., NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Yoshikazu Tsuzuki, Mariko Wakae, Kazuhiko Kurusu, Hideki Abe
-
Patent number: 11581706Abstract: An optical semiconductor device outputting a predetermined wavelength of laser light includes a quantum well active layer positioned between a p-type cladding layer and an n-type cladding layer in thickness direction. The optical semiconductor device includes a separate confinement heterostructure layer positioned between the quantum well active layer and the n-type cladding layer. The optical semiconductor device further includes an electric-field-distribution-control layer positioned between the separate confinement heterostructure layer and the n-type cladding layer and configured by at least two semiconductor layers having band gap energy greater than band gap energy of a barrier layer constituting the quantum well active layer. The quantum well active layer is doped with 0.3 to 1×1018/cm3 of n-type impurity.Type: GrantFiled: February 26, 2021Date of Patent: February 14, 2023Assignee: FURUKAWA ELECTRIC CO., LTD.Inventors: Junji Yoshida, Hirokazu Itoh, Satoshi Irino, Yuichiro Irie, Taketsugu Sawamura
-
Patent number: 11577984Abstract: A method for manufacturing an optical fiber preform includes: producing a core preform including a core portion made of transparent glass and a first cladding layer obtained by adding fluorine to the core portion; and forming, on an outer periphery of the first cladding layer, a second cladding layer made of glass having a refractive index higher than that of the first cladding layer. Further, a refractive index profile is formed in the first cladding layer due to a fluorine concentration profile, the refractive index profile being provided at least near a boundary surface with the second cladding layer and having a profile such that a refractive index difference between a refractive index of the first cladding layer and a refractive index of the second cladding layer decreases in accordance with a reduction in a distance from the boundary surface with the second cladding layer.Type: GrantFiled: July 8, 2020Date of Patent: February 14, 2023Assignee: FURUKAWA ELECTRIC CO., LTD.Inventors: Mitsuhiro Kawasaki, Tomohiro Gonda
-
Patent number: 11578192Abstract: The present disclosure relates to a molded article provided with a resin part formed with a thermoplastic resin composition. The molded article is provided with a resin part formed with a thermoplastic resin composition. The thermoplastic resin composition containing a thermoplastic resin, cellulose, and an ionic compound, wherein a content of the cellulose is 1 to 100 parts by mass based on 100 parts by mass of the thermoplastic resin, and a content of the ionic compound is 0.001 times or more and less than 1.000 times the content of the cellulose.Type: GrantFiled: March 27, 2020Date of Patent: February 14, 2023Assignee: Furukawa Electric Co., Ltd.Inventors: Jaekyung Kim, Kenichi Suyama, Yasuo Nakajima, Eiji Kozawa
-
Publication number: 20230038133Abstract: An optical fiber amplification. system includes: a first optical fiber amplifier including a first optical amplifying fiber including a core portion doped with a first rare-earth. element, a first input unit configured to receive first signal light, an excitation-light source configured to output pump light, a pump light combiner configured to input the pump light to the first optical amplifying fiber, and a residual pump light recovery device configured to recover residual pump light; and a second optical fiber amplifier including a second optical amplifying fiber including a core portion doped with a second rare-earth. element, a second input unit configured to receive second signal light, and a residual pump light combiner configured to input, to the second optical amplifying fiber, the residual pump light recovered by the residual pump light recovery device.Type: ApplicationFiled: September 29, 2022Publication date: February 9, 2023Applicants: FURUKAWA ELECTRIC CO., LTD., KDDI CORPORATIONInventors: Shigehiro TAKASAKA, Koichi MAEDA, Ryuichi SUGIZAKI, Takehiro TSURITANI, Hidenori TAKAHASHI, Itsuro MORITA
-
Publication number: 20230037550Abstract: A method of manufacturing a processed body having a hydrophobic and water-repellent surface, and a processed body having a hydrophobic and water-repellent surface. The method includes: a step of contacting a member made of a crystalline or semicrystalline polymer with a solvent in a solvent-contacting region; and a step of taking the member contacted with the solvent out of the solvent-contacting region and drying the member.Type: ApplicationFiled: September 29, 2022Publication date: February 9, 2023Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Ilona RACZ, Botond MAROSFOI, Csenge VAMOS, Yukako NAKAI, Yu Mimura
-
Publication number: 20230044747Abstract: An implantable medical instrument for use within a body includes a container that has an opening and holds a medicinal solution, and a soft portion that closes the opening. The medical instrument further includes a power receiver that receives power transmitted externally, and a light emitter that emits light by way of the power received by the power receiver. The light emitter includes at least one of a first light emitter that emits light having a center wavelength of 600 nm or more and 1100 nm or less, and a second light emitter that emits light having a center wavelength of 400 nm or more and 480 nm or less.Type: ApplicationFiled: April 16, 2021Publication date: February 9, 2023Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Atsushi HIMURA, Takeshi YAGI, Kazutaka NARA, Katsuki SUEMATSU, Tsunenori ARAI
