Patents by Inventor Kohki Ishikawa
Kohki Ishikawa 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).
-
Publication number: 20190383530Abstract: A heat exchanger 10 to be used in a magnetic heat pump device includes: an assembly 11 which is formed by bundling wires 12; a case 13 which accommodates the assembly 11 and is provided with at least one cutout 145 or 146; and a filling portion 16 which is filled in the cutout 145 or 146, in which the wire 12 is formed of a magnetocaloric material having a magnetocaloric effect and the filling portion 16 is in close contact with an outer periphery of the assembly 11.Type: ApplicationFiled: December 18, 2017Publication date: December 19, 2019Applicant: Fujikura Ltd.Inventors: Masahiro Kondo, Kohki Ishikawa, Katsuhiko Takeuchi, Takeshi Kizaki, Ryujiro Nomura
-
Publication number: 20190049158Abstract: [Object] To provide a wire capable of obtaining a wide temperature span. [Solving Means] An outer surface 121 of a wire 12A formed of a magnetocaloric material having a magnetocaloric effect partially has at least one of a concave portion 122 and a convex portion 123, the concave portion 122 is recessed in a radial direction of the wire 12A, and the convex portion 123 protrudes in the radial direction in a longitudinal direction of the wire 12A.Type: ApplicationFiled: February 28, 2018Publication date: February 14, 2019Applicant: Fujikura Ltd.Inventors: Ryujiro Nomura, Takeshi Kizaki, Katsuhiko Takeuchi, Masahiro Kondo, Kohki Ishikawa
-
Publication number: 20180350490Abstract: Provided is a gadolinium wire rod including gadolinium as a main component and having a Vickers hardness (HV) 120 or less.Type: ApplicationFiled: March 1, 2018Publication date: December 6, 2018Applicant: Fujikura Ltd.Inventors: Ryujiro Nomura, Takeshi Kizaki, Kota Ueno, Katsuhiko Takeuchi, Masahiro Kondo, Kohki Ishikawa
-
Publication number: 20180342337Abstract: Provided is a metal-covered gadolinium wire rod including: a gadolinium wire including gadolinium as a main component, as a core; and a clad layer including, as a main component, a metal other than gadolinium, the clad layer covering the periphery of the core.Type: ApplicationFiled: March 1, 2018Publication date: November 29, 2018Applicant: Fujikura Ltd.Inventors: Ryujiro Nomura, Takeshi Kizaki, Kota Ueno, Katsuhiko Takeuchi, Masahiro Kondo, Kohki Ishikawa
-
Publication number: 20180306470Abstract: An MCM heat exchanger 10 to be used in a magnetic heat pump device 1 comprises: an assembly 11 formed by bundling wires 12; and a cover layer 13 covering the assembly 11, each of the wires 12 is composed of a magnetocaloric material having a magnetocaloric effect, and the cover layer 13 includes: a tubular portion 14 surrounding the periphery of the assembly 11; and a filling portion 15 filling a gap between the outer periphery of the assembly 11 and the tubular portion 14.Type: ApplicationFiled: June 17, 2016Publication date: October 25, 2018Applicants: Fujikura Ltd., Fujikura Ltd.Inventors: Masahiro Kondo, Kohki Ishikawa, Kota Ueno
-
Publication number: 20180283739Abstract: Provided is a gadolinium wire rod including gadolinium as a main component, wherein the average particle size of a segregated phase containing fluorine atom and/or chlorine atom is 2 ?m or less. The present invention can provide a gadolinium wire rod high in strength and excellent in processability.Type: ApplicationFiled: May 29, 2017Publication date: October 4, 2018Applicant: Fujikura Ltd.Inventors: Ryujiro Nomura, Takeshi Kizaki, Kota Ueno, Katsuhiko Takeuchi, Masahiro Kondo, Kohki Ishikawa
-
Publication number: 20180252445Abstract: Provided is an MCM heat exchanger 10 including linear bodies formed of a magnetocaloric material having a magnetocaloric effect and a case 13 filled with the linear bodies, in which each of the linear bodies is a stranded wire 12 obtained by twisting at least two wires 121.Type: ApplicationFiled: March 31, 2017Publication date: September 6, 2018Applicant: Fujikura Ltd.Inventors: Kota UENO, Masahiro KONDO, Ryujiro NOMURA, Takeshi KIZAKI, Kohki ISHIKAWA
-
Publication number: 20180245823Abstract: Provided is a heat exchanger 10 including: wires 121 formed of a magnetocaloric material having a magnetocaloric effect; and a case 13 filled with the wires 121, wherein a wire diameter of the wire 121 is smaller than 1 mm. According to the invention, it is possible to provide a heat exchanger capable of improving a heat exchange efficiency without causing an increase in size of a device.Type: ApplicationFiled: March 31, 2017Publication date: August 30, 2018Applicant: Fujikura Ltd.Inventors: Kota Ueno, Katsuhiko Takeuchi, Masahiro Kondo, Ryujiro Nomura, Takeshi Kizaki, Kohki Ishikawa
-
Patent number: 9564690Abstract: A terminal structure includes: a terminal portion including a tip of a covered electric wire; a connection terminal having a crimp portion crimped to the terminal portion; and a mold resin of a hygroscopic reactive type covering the terminal portion and the crimp portion. The crimp portion includes a conductive crimp portion crimped to the tip. The mold resin includes a first portion covering the conductive crimp portion and the tip; a second portion covering a part of the connection terminal which is further toward a tip than the tip, the part having a thickness smaller than the conductive crimp portion; and a first step formed between the first portion and the second portion such that the height of the mold resin decreases from the first portion to the second portion. A first recess formed on the second portion.Type: GrantFiled: May 30, 2014Date of Patent: February 7, 2017Assignee: FUJIKURA LTD.Inventors: Masahiro Kondo, Kohki Ishikawa
-
Patent number: 9484647Abstract: A male connector (10) comprises: a male-side inner housing (30) which holds a plurality of male terminals (20) so as to expose circular portions (22) of the male terminals (20); and a partition member (40) which includes a rib (41) dividing the circular portions (22) of the plurality of the male terminals (30), and the male-side inner housing (30) and the partition member (40) are configured to be separate from each other.Type: GrantFiled: August 1, 2013Date of Patent: November 1, 2016Assignee: FUJIKURA LTD.Inventors: Kohki Ishikawa, Shigeru Ishikawa, Kazunori Sato
-
Publication number: 20160134028Abstract: The present invention provides a terminal structure for a covered electric wire, including: a terminal portion including a tip of a covered electric wire; a connection terminal having a crimp portion crimped to the terminal portion; and a mold resin of a hygroscopic reactive type covering the terminal portion of the covered electric wire and the crimp portion of the connection terminal. The crimp portion includes a conductive crimp portion crimped to the tip of the covered electric wire. The mold resin includes a first portion covering the conductive crimp portion and the tip of the covered electric wire; a second portion covering a part of the connection terminal which is further toward a tip than the tip of the covered electric wire, the part having a thickness smaller than the thickness of the conductive crimp portion; and a first step formed between the first portion and the second portion such that the height of the mold resin decreases from the first portion to the second portion.Type: ApplicationFiled: May 30, 2014Publication date: May 12, 2016Applicant: FUJIKURA LTD.Inventors: Masahiro Kondo, Kohki Ishikawa
-
Publication number: 20150017829Abstract: A connection structure of a braided-shield-type electric wire for connecting the braided-shield-type electric wire including a plurality of sheathed electric wires and a braided shield member surrounding the sheathed electric wires to a connector and for electrically connecting the braided shield member to a shield shell in a connector housing, the connection structure comprising: a retainer that is arranged inside the braided shield member to hold the sheathed electric wires in a slidable state; a first annular conductive member that is fitted to an outer peripheral side of the retainer in a state where the braided shield member is sandwiched therebetween; and a second annular conductive member that is fitted to an outer peripheral side of the first annular conductive member in a state where the braided shield member is sandwiched therebetween.Type: ApplicationFiled: September 26, 2014Publication date: January 15, 2015Applicant: FUJIKURA LTD.Inventors: Kohki Ishikawa, Isamu Yatougo
-
Publication number: 20140110165Abstract: In a terminal structure of a braided wire, in which a terminal of the braided wire (42) is interposed between an inner ferrule (26) and an outer ferrule (25) and the outer ferrule (25) is caulked inwardly, the inner ferrule (26) includes at least one first groove (264) along an axial direction of the inner ferrule (26) and the outer ferrule (25) is recessed along the first groove (264) of the inner ferrule (26).Type: ApplicationFiled: December 27, 2013Publication date: April 24, 2014Applicant: FUJIKURA LTD.Inventors: Kohki Ishikawa, Takamitsu Noguchi, Shigeru Ishikawa
-
Publication number: 20130322049Abstract: A male connector (10) comprises: a male-side inner housing (30) which holds a plurality of male terminals (20) so as to expose circular portions (22) of the male terminals (20); and a partition member (40) which includes a rib (41) dividing the circular portions (22) of the plurality of the male terminals (30), and the male-side inner housing (30) and the partition member (40) are configured to be separate from each other.Type: ApplicationFiled: August 1, 2013Publication date: December 5, 2013Applicant: FUJIKURA LTD.Inventors: Kohki Ishikawa, Shigeru Ishikawa, Kazunori Sato
-
Publication number: 20130316572Abstract: A connector assembly (1) comprises: a female connector (60) which includes a female terminal (70), a female-side housing (80) which holds the female terminal (70), and a bolt (86) which is held to be rotatable by the female-side housing (80); and a male connector (10) which includes a male terminal (20), a male-side housings (30 and 50) which holds the male terminal (20) and can be fitted with the female-side housing (80), and a female screw portion (531) which is provided in the male-side outer housing (50), the female connector (60) and the male connector (10) fit together by screwing the bolt (86) and the female screw portion (531) with each other, and the connector assembly (1) comprise a fitting indicator (514 and 824) which indicates fitting between the female terminal (70) and the male terminal (20).Type: ApplicationFiled: August 1, 2013Publication date: November 28, 2013Applicant: FUJIKURA, LTD.Inventors: Kohki Ishikawa, Shigeru Ishikawa
-
Patent number: 8276963Abstract: A storage structure, including: a main body portion including an opening portion and a cable outlet portion; a lid slidably mounted on the main body portion to open and close the opening portion, the lid including a cable introductory portion; and a flat plate-shaped cable including a first end at the cable outlet portion, a second end at the cable introductory portion, and a cable slack portion between the first and second ends, where the length of the cable slack portion between the cable outlet portion and the cable introductory portion is set to be equal to or more than the distance between the cable outlet portion and the cable introductory portion, both when the lid is positioned to open and to close the opening portion.Type: GrantFiled: December 22, 2005Date of Patent: October 2, 2012Assignees: Fujikura Ltd., Toyoda Gosei Co., Ltd.Inventors: Kohki Ishikawa, Ichiro Kamada, Yuuitsu Sakuraba, Yasuhiro Sakakibara
-
Publication number: 20110051393Abstract: Both end portions of a light guide body (3) are bent in respective directions towards a second main surface to form guide portions (31, 32). Light that is emitted from each light source (4, 5) mounted on a wiring board arranged on the rear side of the light guide body and that travels in a direction vertical to main surfaces of the light guide body is guided by each guide portion (31, 32) into light propagating in a direction along the main surfaces of the light guide body. Reflection surfaces of a plurality of grooves (13) formed on the light guide body radially from the center position thereof reflect the light from the light sources to a dial plate (2) side and a diffusion printing diffuses the reflected light, so that the diffused light transmissively illuminates a scale marks section (21) and a numerical characters section (22) of the dial plate with uniform brightness.Type: ApplicationFiled: April 16, 2009Publication date: March 3, 2011Applicants: FUJIKURA LTD., CALSONIC KANSEI CORPORATIONInventors: Kohki Ishikawa, Kiyotsugu Oba, Mitsuru Kamikatano, Kiyoshi Ina
-
Publication number: 20110038137Abstract: Light emitted from light sources is reflected toward a dial plate by reflecting surfaces of a plurality of grooves radially formed on a light guide body from the center position of the light guiding body which is arranged on the rear surface side of the dial plate and has a circular arc shape in plane view. Then, the reflected light is diffused by a light diffusion film, and the diffused light transmissively illuminates a scale marks section and a numerical characters section of the dial plate.Type: ApplicationFiled: April 16, 2009Publication date: February 17, 2011Applicant: FUJIKURA LTD.Inventors: Kohki Ishikawa, Kiyotsugu Oba, Mitsuru Kamikatano
-
Patent number: 7553650Abstract: The present invention relates to a method for designing and preparing mutant transglutaminases on the basis of the three-dimensional structure of MTG derived from Streptoverticillium mobaraense (MTG), and the mutant MTG thus prepared. The present invention provides a method for modifying MTG on the basis of the three-dimensional structure, and transglutaminase having reactivity on the substrate improved by the method. In the present invention, the binding site of MTG for the substrate is extrapolated based on the three-dimensional structure obtained by X-ray crystal structure analysis of MTG crystals, and the mutant transglutaminases are designed and produced by replacing, inserting or deleting amino acid residues positioned at the substrate-binding site of the transglutaminase.Type: GrantFiled: August 17, 2006Date of Patent: June 30, 2009Assignee: Ajinomoto Co., Inc.Inventors: Tatsuki Kashiwagi, Nobuhisa Shimba, Kohki Ishikawa, Ei-ichiro Suzuki, Keiichi Yokoyama, Kazuo Hirayama
-
Patent number: 7549776Abstract: A scuff plate of the invention is a scuff plate which has a luminous unit of which a side surface of side surfaces forms a luminous surface, a light source unit which emits light to the luminous unit, and a light guiding unit which is disposed in such a manner that a side surface thereof faces the luminous surface, wherein the light guiding unit has a luminous surface portion which expands in an intersecting direction relative to a front surface thereof. The scuff plate of the invention provides a scuff plate which has superior design properties without increasing the thickness of the whole thereof.Type: GrantFiled: November 21, 2006Date of Patent: June 23, 2009Assignees: Toyoda Gosei Co., Ltd., Fujikura Ltd.Inventors: Hideto Maeda, Daiichiro Kawashima, Tatsuo Ito, Tatsuya Oba, Mitsuru Kamikatano, Kohki Ishikawa