Patents by Inventor Shotaro Yoshida
Shotaro Yoshida has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20220117724Abstract: This disclosure provides a method of absorbing or discharging water of an ophthalmic medical device capable of absorbing and discharging water, and an ophthalmic medical device. The method of absorbing or discharging water of an ophthalmic medical device of the present disclosure includes using an ophthalmic medical device including a plurality of electrodes, and generating an electroosmotic flow inside and/or outside the medical device.Type: ApplicationFiled: March 4, 2019Publication date: April 21, 2022Applicant: TOHOKU UNIVERSITYInventors: Matsuhiko NISHIZAWA, Shotaro YOSHIDA, Shinya KUSAMA
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Publication number: 20200324107Abstract: This disclosure provides an electrode body in which an electrode is firmly fixed to a gel without performing electrolytic polymerization. In the electrode body, at a least part of a surface of an electrode is uneven, at least a part of the uneven surface of the electrode is covered with a gel, the gel has a three-dimensional network structure, at least a part of the uneven surface is in contact with the three-dimensional network structure and is embedded inside the three-dimensional network structure. The electrode is preferably a laminated body in which a resin layer is laminated on both surfaces of a conductive base material. It is more preferably that the conductive base material be a fabric woven from fibers and the uneven surface be a surface of the fabric.Type: ApplicationFiled: December 25, 2018Publication date: October 15, 2020Applicant: TOHOKU UNIVERSITYInventors: Matsuhiko NISHIZAWA, Atsuhiro NAKAGAWA, Kengo KATO, Shotaro YOSHIDA
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Patent number: 9478328Abstract: A method for manufacturing a high frequency cable that includes covering a central conductor made from aluminum or an aluminum alloy with a covering layer made from copper; and wire drawing of the central conductor covered by the covering layer using dies at multiple steps, each of the dies having a cross-section reduction rate of 20% to 29% with an entire reduction angle of 16 degrees, to form a fiber-like structure in a longitudinal direction in the covering layer, and to form an intermetallic compound layer having greater volume resistivity than the covering layer between the central conductor and the covering layer.Type: GrantFiled: July 21, 2014Date of Patent: October 25, 2016Assignee: FUJIKURA LTD.Inventors: Takashi Shinmoto, Shotaro Yoshida, Shinji Katayama, Taikou Toda, Takamasa Kato, Masanori Daibo, Akio Kawakawi
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Patent number: 9425662Abstract: An electric wire includes a conductive portion 11 made of a material having a volume resistivity higher than that of copper, wherein the volume resistivity of the conductive portion is specified so that, in a frequency range in which the electric wire is used, a ratio of AC resistance of the conductive portion 11 to AC resistance of reference copper wire is less than 1.Type: GrantFiled: May 29, 2014Date of Patent: August 23, 2016Assignee: FUJIKURA LTD.Inventors: Takashi Shinmoto, Shotaro Yoshida, Ning Guan
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Patent number: 9123456Abstract: A high frequency cable includes: a central conductor made from aluminum or an aluminum alloy; a covering layer made from copper covering the central conductor, and having a fiber-like structure in a longitudinal direction; and an intermetallic compound layer formed between the central conductor and the covering layer and having greater volume resistivity than the covering layer, wherein a cross-sectional area of the covering layer is 15% or less of an entire cross-sectional area including the central conductor, the intermetallic compound layer and the covering layer.Type: GrantFiled: September 21, 2012Date of Patent: September 1, 2015Assignee: FUJIKURA LTD.Inventors: Takashi Shinmoto, Shotaro Yoshida, Shinji Katayama, Taikou Toda, Takamasa Kato, Masanori Daibo, Akio Kawakami
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Publication number: 20150013153Abstract: A high frequency cable includes: a central conductor made from aluminum or an aluminum alloy; a covering layer made from copper covering the central conductor, and having a fiber-like structure in a longitudinal direction; and an intermetallic compound layer formed between the central conductor and the covering layer and having greater volume resistivity than the covering layer, wherein a cross-sectional area of the covering layer is 15% or less of an entire cross-sectional area including the central conductor, the intermetallic compound layer and the covering layer.Type: ApplicationFiled: July 21, 2014Publication date: January 15, 2015Applicant: FUJIKURA LTD.Inventors: Takashi SHINMOTO, Shotaro YOSHIDA, Shinji KATAYAMA, Taikou TODA, Takamasa KATO, Masanori DAIBO, Akio KAWAKAWI
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Patent number: 8866019Abstract: An electric wire includes a conductive portion 11 made of a material having a volume resistivity higher than that of copper, wherein the volume resistivity of the conductive portion is specified so that, in a frequency range in which the electric wire is used, a ratio of AC resistance of the conductive portion 11 to AC resistance of reference copper wire is less than 1.Type: GrantFiled: February 19, 2013Date of Patent: October 21, 2014Assignee: Fujikura Ltd.Inventors: Takashi Shinmoto, Shotaro Yoshida, Ning Guan
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Publication number: 20140265713Abstract: An electric wire includes a conductive portion 11 made of a material having a volume resistivity higher than that of copper, wherein the volume resistivity of the conductive portion is specified so that, in a frequency range in which the electric wire is used, a ratio of AC resistance of the conductive portion 11 to AC resistance of reference copper wire is less than 1.Type: ApplicationFiled: May 29, 2014Publication date: September 18, 2014Applicant: FUJIKURA LTD.Inventors: Takashi SHINMOTO, Shotaro YOSHIDA, Ning GUAN
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Patent number: 8723387Abstract: An electric wire includes a conductive portion 11 made of a material having a volume resistivity higher than that of copper, wherein the volume resistivity of the conductive portion is specified so that, in a frequency range in which the electric wire is used, a ratio of AC resistance of the conductive portion 11 to AC resistance of reference copper wire is less than 1.Type: GrantFiled: May 1, 2013Date of Patent: May 13, 2014Assignee: Fujikura Ltd.Inventors: Takashi Shinmoto, Shotaro Yoshida, Ning Guan
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Publication number: 20130234637Abstract: An electric wire includes a conductive portion 11 made of a material having a volume resistivity higher than that of copper, wherein the volume resistivity of the conductive portion is specified so that, in a frequency range in which the electric wire is used, a ratio of AC resistance of the conductive portion 11 to AC resistance of reference copper wire is less than 1.Type: ApplicationFiled: May 1, 2013Publication date: September 12, 2013Applicant: FUJIKURA LTD.Inventors: Takashi SHINMOTO, Shotaro YOSHIDA, Ning GUAN
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Publication number: 20130162097Abstract: An electric wire includes a conductive portion 11 made of a material having a volume resistivity higher than that of copper, wherein the volume resistivity of the conductive portion is specified so that, in a frequency range in which the electric wire is used, a ratio of AC resistance of the conductive portion 11 to AC resistance of reference copper wire is less than 1.Type: ApplicationFiled: February 19, 2013Publication date: June 27, 2013Applicant: FUJIKURA LTD.Inventors: Takashi SHINMOTO, Shotaro YOSHIDA, Ning GUAN
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Publication number: 20130014973Abstract: A high frequency cable includes: a central conductor made from aluminum or an aluminum alloy; a covering layer made from copper covering the central conductor, and having a fiber-like structure in a longitudinal direction; and an intermetallic compound layer formed between the central conductor and the covering layer and having greater volume resistivity than the covering layer, wherein a cross-sectional area of the covering layer is 15% or less of an entire cross-sectional area including the central conductor, the intermetallic compound layer and the covering layer.Type: ApplicationFiled: September 21, 2012Publication date: January 17, 2013Applicant: FUJIKURA LTD.Inventors: Takashi SHINMOTO, Shotaro YOSHIDA, Shinji KATAYAMA, Taikou TODA, Takamasa KATO, Masanori DAIBO, Akio KAWAKAMI
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Patent number: 5308162Abstract: A temperature abnormality detecting structure for a fluid pipe detects a temperature abnormality location by laying an optical fiber serving as a temperature detecting portion of a Ramam scattering optical fiber distribution type temperature sensor along a fluid pipe. The fluid pipe is divided into a plurality of sections in the longitudinal direction, independent optical fibers are laid along the fluid pipe in the respective sections. A portion of the optical fiber laid along one of the adjacent sections is superposed to be laid on a portion of the optical fiber laid along the other of the adjacent sections in the vicinity of each of the respective boundaries of the sections.Type: GrantFiled: February 10, 1993Date of Patent: May 3, 1994Assignee: Fujikura Ltd.Inventors: Kazuo Amano, Shotaro Yoshida
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Patent number: 5178465Abstract: In an optical fiber laying structure for an electric power cable line trouble occurrence location detecting system for detecting a trouble occurrence location by laying an optical fiber along an electric power cable line, the portion of the optical fiber laid along the cable of one of the two adjacent sections is superposed on the portion of the optical fiber laid along the cable of the other sections in an area in the vicinity of the boundary of the electric power cable line. Thus, if a temperature rise occurs due to a trouble such as a ground-fault in the boundary area, the temperature peak position, i.e., the trouble occurrence location can be detected by the two different optical fibers. Therefore, the trouble occurrence location in the boundary area can be accurately detected.Type: GrantFiled: July 9, 1991Date of Patent: January 12, 1993Assignee: Fujikura Ltd.Inventors: Kazuo Amano, Shotaro Yoshida
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Patent number: 4861148Abstract: A projection optical system for use in a precise copy which uses a pair of catadioptric optical systems consisting of convex mirrors, concave mirrors, and phase correction members is shown. Two catadioptric optical systems commonly use an entrance pupil on a coaxis and are coupled so as to respectively face the phase correction members. Each of the concave mirrors has an opening at the center. Each of the convex mirrors has no opening in one embodiment but has an opening portion at the center in another embodiment.Type: GrantFiled: March 11, 1987Date of Patent: August 29, 1989Assignee: Matsushita Electric Industrial Co., Inc.Inventors: Takeo Sato, Nobuhiro Araki, Koichi Kawata, Noboru Nomura, Atushi Ueno, Shotaro Yoshida
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Patent number: 4840552Abstract: An apparatus for continuously producing a heat-shrinkable crosslinked resin tube from a crosslinkable resin is provided, comprising in successive connection, an extruder head for extruding the resin into a hollow tube, a fluid under pressure being introduced into the interior of the tube being extruded, a crosslinking cylinder disposed downstream of the head for heating the tubular resin for crosslinking, a flare die disposed downstream thereof for allowing the tube to expand under the fluid pressure, a cooling cylinder disposed downstream thereof for cooling the tube, a guide for deforming the tube into a flattened form, and rollers for pressing and drawing the tube away from the extruder head, wherein a smooth interior surface free of a substantial gap or step extends continuously from the crosslinking cylinder to the cooling cylinder.Type: GrantFiled: July 7, 1987Date of Patent: June 20, 1989Assignee: Fujikura Ltd.Inventors: Akihumi Onishi, Masakasu Hasegawa, Michio Takaoka, Tsuneaki Motai, Motoyuki Ono, Shotaro Yoshida
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Patent number: 4757354Abstract: A projection optical system for photolithography includes a refraction sub-system and a cata-dioptric sub-system optically connected to each other. The refraction sub-system extends at an object side. The cata-dioptric sub-system extends at an image side. The refraction sub-system is generally composed of refracting members. The cata-dioptric sub-system is generally composed of a phase compensating member, a concave mirror, and a convex mirror. The phase compensating member adjoins the refraction sub-system. At least the concave mirror has a central opening through which light passes. The light forms an image at a rear of the concave mirror.Type: GrantFiled: April 28, 1987Date of Patent: July 12, 1988Assignee: Matsushita Electrical Industrial Co., Ltd.Inventors: Takeo Sato, Nobuhiro Araki, Koichi Kawata, Noboru Nomura, Atsushi Ueno, Shotaro Yoshida
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Patent number: 4626618Abstract: A DC power cable includes a conductor and an insulation of a thermoplastic resin formed around the conductor. The insulation contains carbon black in an amount of about 0.2 to about 5% of the total weight of the thermoplastic resin and the carbon black, and the ratio of mineral oil absorption (cc/100 g) to specific surface (m.sup.2 /g) in the carbon black is not less than 0.7. The carbon black has the hydrogen content of not more than 0.6% by weight. The specific surface is measured by BET equation. The carbon black has a particle size of 10 to 100 nm.Type: GrantFiled: May 3, 1985Date of Patent: December 2, 1986Assignee: Fujikura Ltd.Inventors: Michio Takaoka, Tsuneaki Motai, Motoyuki Ono, Shotaro Yoshida, Toshio Niwa, Toru Takahashi, Keiichiro Kataoka, Hiroshi Yamanouchi
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Patent number: 4411710Abstract: A method is disclosed in which an insulating film of an oxide of metal, of which a stranded conductor (30) is made, is formed on the surface of all strands in a stranded conductor, while the stranded conductor is held in the stranded form. In a step of oxidation-treating the strands of an electric cable the pressure of an oxidation treatment solution at the outer portion of the stranded conductor immersed therein is made higher than the pressure in the inner portion of the stranded conductor (30), causing the oxidation treatment solution (48) to be adequately penetrated from the outer portion into the inner portion of the stranded conductor to permit a desired oxide film to be formed on the surface of all the strands in the stranded conductor.Type: GrantFiled: November 23, 1981Date of Patent: October 25, 1983Assignee: The Fujikawa Cable Works, LimitedInventors: Masataka Mochizuki, Michio Takaoka, Tsuneaki Moutai, Shotaro Yoshida, Kazuo Watanabe