Patents by Inventor Yukiko Takahashi
Yukiko Takahashi 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).
-
Patent number: 11958392Abstract: A seat pad manufacturing method is provided. The method includes disposing a sheet member inside a foaming mold for shaping a seat pad, then injecting a foaming resin material into the foaming mold and foaming a resin foamed body through mold clamping, and demolding the resin foamed body in a state in which the sheet member is buried in the resin foamed body. Both end parts of the sheet member in the right-left direction and both end parts of the sheet member in the extending direction are each temporarily fastened to the surface of the mold through a fastener. The foaming resin material is injected into a space between the mold surface and the sheet member. A central part of the sheet member deforms into a shape curved in a convex shape as the sheet member is pressed upward through expansion of the foaming resin material.Type: GrantFiled: December 6, 2022Date of Patent: April 16, 2024Assignee: Archem Inc.Inventors: Yukiko Yamaguchi, Taisuke Yonezawa, Yoshiyuki Takahashi
-
Publication number: 20240100809Abstract: A cushion material manufacturing method for obtaining a cushion material is provided. The cushion material have a foam body having a surface portion formed of an air permeability control surface portion and an air permeability uncontrol surface portion and a covering material configured to cover the air permeability uncontrol surface portion. The cushion material manufacturing method includes covering the air permeability uncontrol surface portion of the foam body with the covering material.Type: ApplicationFiled: December 8, 2023Publication date: March 28, 2024Applicant: Archem Inc.Inventors: Taichi ITABASHI, Yukiko YAMAGUCHI, Satoshi IENAGA, Yoshiyuki TAKAHASHI
-
Patent number: 11841689Abstract: A policy creation unit creates a plurality of policies each including a predetermined number of rules in which a condition for determining a state of an object is combined with an action in the state. An action determination unit determines, for each of the plurality of created policies, an action to be performed while a state of the object is changed from a first state to a second state in accordance with the policy. A policy evaluation unit determines, in accordance with a difference between a state between the first state and the second state and a desired state, the quality of the determined action and determines, for each of the plurality of policies, the quality of the policy based on the determined quality of the action. A policy selection unit selects the policy that is determined to have a high quality.Type: GrantFiled: September 10, 2019Date of Patent: December 12, 2023Assignees: NEC CORPORATION, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Yukiko Takahashi, Takuya Hiraoka, Yoshimasa Tsuruoka
-
Publication number: 20230297958Abstract: A policy creation apparatus capable of creating policies with high quality and high visibility is provided. A rule creation unit (302) creates a plurality of rule sets including a plurality of rules that are a combination of a condition for determining a necessity of an action to be taken regarding an object and the action to be performed when the condition holds. An order determination unit (304) determines an order of the rules in each of the plurality of rule sets. An action determination unit (306) determines whether or not the condition holds in accordance with the determined order, and determines the action when the condition holds.Type: ApplicationFiled: August 3, 2020Publication date: September 21, 2023Applicant: NEC CorporationInventors: Yukiko TAKAHASHI, Yuzuru Okajima
-
Patent number: 11325847Abstract: A method of selectively and efficiently adsorbing an anion such as a phosphate ion which adversely affect the environment when discharged without any treatment, or an anion which can be used beneficially when recovered, from waste water or a solution including such ion using an adsorbent. A method of adsorbing an anion of interest from an aqueous solution (A) containing the anion of interest and the other anion using an anion adsorbent, including performing at least (1) a step of contacting the aqueous solution (A) having a pH of 5.8 or less with the anion adsorbent to allow the anions to be adsorbed to the anion adsorbent, and then (2) a step of contacting water or an aqueous solution (B) having a pH of 5.2 to 11 with the anion adsorbent to desorb at least a part of the other anion adsorbed to the anion adsorbent from the anion adsorbent.Type: GrantFiled: June 11, 2018Date of Patent: May 10, 2022Assignees: TAKAHASHI METAL INDUSTRIES CO., LTD., NIPPON SODA CO., LTD.Inventors: Toshiyasu Hirokawa, Tsuyoshi Noishiki, Nobuo Kimura, Yuichi Tateishi, Yukiko Takahashi
-
Publication number: 20220100154Abstract: A policy creation unit creates a plurality of policies each including a predetermined number of rules in which a condition for determining a state of an object is combined with an action in the state. An action determination unit determines, for each of the plurality of created policies, an action to be performed while a state of the object is changed from a first state to a second state in accordance with the policy. A policy evaluation unit determines, in accordance with a difference between a state between the first state and the second state and a desired state, the quality of the determined action and determines, for each of the plurality of policies, the quality of the policy based on the determined quality of the action. A policy selection unit selects the policy that is determined to have a high quality.Type: ApplicationFiled: September 10, 2019Publication date: March 31, 2022Applicants: NCE CORPORATION, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE ADN TECHNOLOGYInventors: Yukiko TAKAHASHI, Takuya HIRAOKA, Yoshimasa TSURUOKA
-
Publication number: 20210139347Abstract: A method of selectively and efficiently adsorbing an anion such as a phosphate ion which adversely affect the environment when discharged without any treatment, or an anion which can be used beneficially when recovered, from waste water or a solution including such ion using an adsorbent. A method of adsorbing an anion of interest from an aqueous solution (A) containing the anion of interest and the other anion using an anion adsorbent, including performing at least (1) a step of contacting the aqueous solution (A) having a pH of 5.8 or less with the anion adsorbent to allow the anions to be adsorbed to the anion adsorbent, and then (2) a step of contacting water or an aqueous solution (B) having a pH of 5.2 to 11 with the anion adsorbent to desorb at least a part of the other anion adsorbed to the anion adsorbent from the anion adsorbent.Type: ApplicationFiled: June 11, 2018Publication date: May 13, 2021Applicants: TAKAHASHI METAL INDUSTRIES CO., LTD., NIPPON SODA CO., LTD.Inventors: Toshiyasu HIROKAWA, Tsuyoshi NOISHIKI, Nobuo KIMURA, Yuichi TATEISHI, Yukiko TAKAHASHI
-
Patent number: 11004465Abstract: An object of the present invention is to provide a Magneto-Resistance (MR) element showing a high Magneto-Resistance (MR) ratio and having a suitable Resistance-Area (RA) for device applications. The MR element of the present invention has a laminated structure including a first ferromagnetic layer 16, a non-magnetic layer 18, and a second ferromagnetic layer 20 on a substrate 10, wherein the first ferromagnetic layer 16 includes a Heusler alloy, the second ferromagnetic layer 20 includes a Heusler alloy, the non-magnetic layer 18 includes a I-III-VI2 chalcopyrite-type compound semiconductor, and the non-magnetic layer 18 has a thickness of 0.5 to 3 nm, and wherein the MR element shows a Magneto-Resistance (MR) change of 40% or more, and has a resistance-area (RA) of 0.1 [??m2] or more and 3 [??m2] or less.Type: GrantFiled: June 23, 2017Date of Patent: May 11, 2021Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Shinya Kasai, Yukiko Takahashi, Pohan Cheng, Ikhtiar, Seiji Mitani, Tadakatsu Ohkubo, Kazuhiro Hono
-
Patent number: 10843166Abstract: Adsorbent particle includes iron oxyhydroxide as a main component, wherein 90% or more of volume of particle is constituted of a granular crystal having a crystal grain size of 20 nm or less or a columnar crystal having a width of 10 nm or less and length of 30 nm or less and particle has BET specific surface area of 250 m2/g or more. Above adsorbent particle is produced by a method including a step of generating iron oxyhydroxide by adding base represented by YOH (wherein Y represents a monovalent atom or atomic group) to solution including at least one selected from trivalent iron compounds represented by FeX3 (wherein X represents a monovalent atom or atomic group other than OH) while adjusting pH to pH 3 to 6, wherein solution has total concentration of FeX3, YOH and other electrolytes of 10% by mass or more at completion of the step.Type: GrantFiled: December 19, 2016Date of Patent: November 24, 2020Assignees: TAKAHASHI METAL INDUSTRIES CO., LTD., NIPPON SODA CO., LTD.Inventors: Toshiyasu Hirokawa, Tsuyoshi Noishiki, Nobuo Kimura, Masato Amaike, Yukiko Takahashi
-
Publication number: 20190237099Abstract: An object of the present invention is to provide a Magneto-Resistance (MR) element showing a high Magneto-Resistance (MR) ratio and having a suitable Resistance-Area (RA) for device applications. The MR element of the present invention has a laminated structure including a first ferromagnetic layer 16, a non-magnetic layer 18, and a second ferromagnetic layer 20 on a substrate 10, wherein the first ferromagnetic layer 16 includes a Heusler alloy, the second ferromagnetic layer 20 includes a Heusler alloy, the non-magnetic layer 18 includes a I-III-VI2 chalcopyrite-type compound semiconductor, and the non-magnetic layer 18 has a thickness of 0.5 to 3 nm, and wherein the MR element shows a Magneto-Resistance (MR) change of 40% or more, and has a resistance-area (RA) of 0.1 [??m2] or more and 3 [??m2] or less.Type: ApplicationFiled: June 23, 2017Publication date: August 1, 2019Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Shinya KASAI, Yukiko TAKAHASHI, Pohan CHENG, IKHTIAR, Seiji MITANI, Tadakatsu OHKUBO, Kazuhiro HONO
-
Publication number: 20180369782Abstract: Adsorbent particle includes iron oxyhydroxide as a main component, wherein 90% or more of volume of particle is constituted of a granular crystal having a crystal grain size of 20 nm or less or a columnar crystal having a width of 10 nm or less and length of 30 nm or less and particle has BET specific surface area of 250 m2/g or more. Above adsorbent particle is produced by a method including a step of generating iron oxyhydroxide by adding base represented by YOH (wherein Y represents a monovalent atom or atomic group) to solution including at least one selected from trivalent iron compounds represented by FeX3 (wherein X represents a monovalent atom or atomic group other than OH) while adjusting pH to pH 3 to 6, wherein solution has total concentration of FeX3, YOH and other electrolytes of 10% by mass or more at completion of the step.Type: ApplicationFiled: December 19, 2016Publication date: December 27, 2018Applicants: TAKAHASHI METAL INDUSTRIES CO., LTD., NIPPON SODA CO., LTD.Inventors: Toshiyasu HIROKAWA, Tsuyoshi NOISHIKI, Nobuo KIMURA, Masato AMAIKE, Yukiko TAKAHASHI
-
Patent number: 10090090Abstract: The invention provides a nanocomposite magnet, which has achieved high coercive force and high residual magnetization. The magnet is a non-ferromagnetic phase that is intercalated between a hard magnetic phase with a rare-earth magnet composition and a soft magnetic phase, wherein the non-ferromagnetic phase reacts with neither the hard nor soft magnetic phase. A hard magnetic phase contains Nd2Fe14B, a soft magnetic phase contains Fe or Fe2Co, and a non-ferromagnetic phase contains Ta. The thickness of the non-ferromagnetic phase containing Ta is 5 nm or less, and the thickness of the soft magnetic phase containing Fe or Fe2Co is 20 nm or less. Nd, or Pr, or an alloy of Nd and any one of Cu, Ag, Al, Ga, and Pr, or an alloy of Pr and any one of Cu, Ag, Al, and Ga is diffused into a grain boundary phase of the hard magnetic phase of Nd2Fe14B.Type: GrantFiled: October 16, 2017Date of Patent: October 2, 2018Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Hidefumi Kishimoto, Noritsugu Sakuma, Masao Yano, Weibin Cui, Yukiko Takahashi, Kazuhiro Hono
-
Patent number: 9899044Abstract: The present invention addresses the problem of providing an element which uses the current-perpendicular-to-plane giant magnetoresistance (CPPGMR) effect of a thin film having the three-layer structure of ferromagnetic metal/non-magnetic metal/ferromagnetic metal. The problem is solved by a magnetoresistive element provided with a lower ferromagnetic layer and an upper ferromagnetic layer which contain a Heusler alloy, and a spacer layer sandwiched between the lower ferromagnetic layer and the upper ferromagnetic layer, the magnetoresistive element being characterized in that the spacer layer contains an alloy having a bcc structure. Furthermore, it is preferable for the alloy to have a disordered bcc structure.Type: GrantFiled: July 28, 2015Date of Patent: February 20, 2018Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Takao Furubayashi, Yukiko Takahashi, Kazuhiro Hono, Ye Du
-
Publication number: 20180040404Abstract: The invention provides a nanocomposite magnet, which has achieved high coercive force and high residual magnetization. The magnet is a non-ferromagnetic phase that is intercalated between a hard magnetic phase with a rare-earth magnet composition and a soft magnetic phase, wherein the non-ferromagnetic phase reacts with neither the hard nor soft magnetic phase. A hard magnetic phase contains Nd2Fe14B, a soft magnetic phase contains Fe or Fe2Co, and a non-ferromagnetic phase contains Ta. The thickness of the non-ferromagnetic phase containing Ta is 5 nm or less, and the thickness of the soft magnetic phase containing Fe or Fe2Co is 20 nm or less. Nd, or Pr, or an alloy of Nd and any one of Cu, Ag, Al, Ga, and Pr, or an alloy of Pr and any one of Cu, Ag, Al, and Ga is diffused into a grain boundary phase of the hard magnetic phase of Nd2Fe14B.Type: ApplicationFiled: October 16, 2017Publication date: February 8, 2018Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Hidefumi KISHIMOTO, Noritsugu SAKUMA, Masao YANO, Weibin CUI, Yukiko TAKAHASHI, Kazuhiro HONO
-
Patent number: 9818520Abstract: The invention provides a nanocomposite magnet, which has achieved high coercive force and high residual magnetization. The magnet is a non-ferromagnetic phase that is intercalated between a hard magnetic phase with a rare-earth magnet composition and a soft magnetic phase, wherein the non-ferromagnetic phase reacts with neither the hard nor soft magnetic phase. A hard magnetic phase contains Nd2Fe14B, a soft magnetic phase contains Fe or Fe2Co, and a non-ferromagnetic phase contains Ta. The thickness of the non-ferromagnetic phase containing Ta is 5 nm or less, and the thickness of the soft magnetic phase containing Fe or Fe2Co is 20 nm or less. Nd, or Pr, or an alloy of Nd and any one of Cu, Ag, Al, Ga, and Pr, or an alloy of Pr and any one of Cu, Ag, Al, and Ga is diffused into a grain boundary phase of the hard magnetic phase of Nd2Fe14B.Type: GrantFiled: December 27, 2012Date of Patent: November 14, 2017Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Hidefumi Kishimoto, Noritsugu Sakuma, Masao Yano, Weibin Cui, Yukiko Takahashi, Kazuhiro Hono
-
MAGNETORESISTIVE ELEMENT, MAGNETIC HEAD USING MAGNETORESISTIVE ELEMENT, AND MAGNETIC PLAYBACK DEVICE
Publication number: 20170221507Abstract: The present invention addresses the problem of providing an element which uses the current-perpendicular-to-plane giant magnetoresistance (CPPGMR) effect of a thin film having the three-layer structure of ferromagnetic metal/non-magnetic metal/ferromagnetic metal. The problem is solved by a magnetoresistive element provided with a lower ferromagnetic layer and an upper ferromagnetic layer which contain a Heusler alloy, and a spacer layer sandwiched between the lower ferromagnetic layer and the upper ferromagnetic layer, the magnetoresistive element being characterized in that the spacer layer contains an alloy having a bcc structure. Furthermore, it is preferable for the alloy to have a disordered bcc structure.Type: ApplicationFiled: July 28, 2015Publication date: August 3, 2017Inventors: Takao FURUBAYASHI, Yukiko TAKAHASHI, Kazuhiro HONO, Ye DU -
Publication number: 20170092307Abstract: The CPPGMR element of the present invention has an orientation layer 12 formed on a substrate 11 to texture a Heusler alloy into a (100) direction, an underlying layer 13 that is an electrode for magneto-resistance measurement stacked on the orientation layer 12, a lower ferromagnetic layer 14 and an upper ferromagnetic layer 16 each stacked on the underlying layer 13 and made of a Heusler alloy, a spacer layer 15 sandwiched between the lower ferromagnetic layers 14 and the upper ferromagnetic layers 16, and a cap layer 17 stacked on the upper ferromagnetic layer 16 for surface-protection. This manner makes it possible to provide, inexpensively, an element using a current-perpendicular-to-plane giant magneto-resistance effect (CPPGMR) of a thin film having a trilayered structure of a ferromagnetic metal/a nonmagnetic metal/a ferromagnetic metal, thereby showing excellent performances.Type: ApplicationFiled: October 31, 2016Publication date: March 30, 2017Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Ye DU, Takao FURUBAYASHI, Yukiko TAKAHASHI, Kazuhiro HONO
-
Patent number: 9589583Abstract: The CPPGMR element of the present invention has an orientation layer 12 formed on a substrate 11 to texture a Heusler alloy into a (100) direction, an underlying layer 13 that is an electrode for magneto-resistance measurement stacked on the orientation layer 12, a lower ferromagnetic layer 14 and an upper ferromagnetic layer 16 each stacked on the underlying layer 13 and made of a Heusler alloy, a spacer layer 15 sandwiched between the lower ferromagnetic layers 14 and the upper ferromagnetic layers 16, and a cap layer 17 stacked on the upper ferromagnetic layer 16 for surface-protection. This manner makes it possible to provide, inexpensively, an element using a current-perpendicular-to-plane giant magneto-resistance effect (CPPGMR) of a thin film having a trilayered structure of a ferromagnetic metal/a nonmagnetic metal/a ferromagnetic metal, thereby showing excellent performances.Type: GrantFiled: October 31, 2016Date of Patent: March 7, 2017Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Ye Du, Takao Furubayashi, Yukiko Takahashi, Kazuhiro Hono
-
Patent number: 9558767Abstract: The CPPGMR element of the present invention has an orientation layer 12 formed on a substrate 11 to texture a Heusler alloy into a (100) direction, an underlying layer 13 that is an electrode for magneto-resistance measurement stacked on the orientation layer 12, a lower ferromagnetic layer 14 and an upper ferromagnetic layer 16 each stacked on the underlying layer 13 and made of a Heusler alloy, a spacer layer 15 sandwiched between the lower ferromagnetic layers 14 and the upper ferromagnetic layers 16, and a cap layer 17 stacked on the upper ferromagnetic layer 16 for surface-protection. This manner makes it possible to provide, inexpensively, an element using a current-perpendicular-to-plane giant magneto-resistance effect (CPPGMR) of a thin film having a trilayered structure of a ferromagnetic metal/a nonmagnetic metal/a ferromagnetic metal, thereby showing excellent performances.Type: GrantFiled: April 2, 2014Date of Patent: January 31, 2017Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Ye Du, Takao Furubayashi, Yukiko Takahashi, Kazuhiro Hono
-
Patent number: 9508373Abstract: Provided are an element structure in which a magnetic layer has a high magnetic anisotropy constant and saturated magnetization properties in a thickness of 1.5 nm or less, and a magnetic device that uses the element structure. A BCC metal nitride/CoFeB/MgO film structure that uses a nitride of a BCC metal as a seed layer is fabricated. The nitride amount in the BCC metal nitride is preferably less than 60% in terms of volume ratio based on 100% BCC metal. It is thereby possible to readily obtain a perpendicularly magnetized film having the magnetic properties that the perpendicular magnetic anisotropy is 0.1×106 erg/cm3 or more and the saturated magnetization is 200 emu/cm3 or more, even when the thickness of the magnetic layer is 0.3 nm or more and 1.5 nm or less.Type: GrantFiled: March 22, 2013Date of Patent: November 29, 2016Assignee: National Institute for Materials ScienceInventors: Masamitsu Hayashi, Sinha Jaivardhan, Masaya Kodzuka, Tomoya Nakatani, Yukiko Takahashi, Takao Furubayashi, Seiji Mitani, Kazuhiro Hono