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公开(公告)号：US20210238052A1
公开(公告)日：2021-08-05
申请号：US15734863
申请日：2019-06-04
Applicant: KOA CORPORATION , JFE MINERAL COMPANY, LTD.
Inventor： Naomi ISHIDA , Yoji GOMI , Kenichi IGUCHI , Etsurou UDAGAWA , Yuko ECHIZENYA , Yoshimi NAKATA
Abstract: Focusing on zinc oxide itself, which is a main raw material for a zinc oxide varistor (laminated varistor), a predetermined amount of additive is added to a zinc oxide powder having crystallite size of 20 to 100 nm, particle diameter of 20 to 110 nm found using a specific area BET method, untamped density of 0.60 g/cm3 or greater, and tap density of 0.80 g/cm3 or greater. This allows a zinc oxide sintered body to secure uniformity, high density, and high electric conductivity, resulting in a zinc oxide varistor with high surge resistance, capable of downsizing and cost reduction. Moreover, addition of aluminum (Al), as a donor element, to the zinc oxide powder allows control of sintered grain size in conformity with the aluminum added amount and baking temperature, and also allows adjustment of varistor voltage, etc.
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公开(公告)号：US11020427B2
公开(公告)日：2021-06-01
申请号：US16851862
申请日：2020-04-17
Applicant: JFE MINERAL COMPANY, LTD.
Inventor： Etsurou Udagawa , Yuko Echizenya , Chisaki Miura , Yoshimi Nakata , Osamu Yamamoto
Abstract: Provided is a low-cost, easy-to-handle, effective therapeutic agent for wounds that is a therapeutic agent for skin wounds or rough skin that includes at least one selected from the group consisting of zinc chloride, zinc hydroxide, and zinc oxide and may include a pharmaceutically acceptable carrier.
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公开(公告)号：US10987380B2
公开(公告)日：2021-04-27
申请号：US16468227
申请日：2017-12-08
Applicant: JFE MINERAL COMPANY, LTD.
Inventor： Yuko Echizenya , Yoshimi Nakata , Etsurou Udagawa , Osamu Yamamoto
Abstract: An inorganic composition that is useful as an active ingredient for pharmaceuticals and has excellent stability comprises hydrozincite-containing zinc carbonate hydroxide hydrate produced by drying a precipitate. The precipitate is obtained by adding aqueous zinc nitrate solution, aqueous zinc sulfate solution or aqueous zinc chloride solution and aqueous sodium hydroxide solution dropwise to aqueous sodium hydrogen carbonate solution, a pH of the aqueous sodium hydrogen carbonate solution being maintained within a range of 6.5 to 9 by means of a pH controller. The hydrozincite-containing zinc carbonate hydroxide hydrate has an amount of dissolved Zn2+ ions of not less than 0.1 μg/m2 but not more than 7.33 μg/m2 and pH of not less than 7.2 and less than 8.3 after a dissolution test using stirring method.
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公开(公告)号：US10780114B2
公开(公告)日：2020-09-22
申请号：US15735634
申请日：2016-06-10
Applicant: JFE MINERAL COMPANY, LTD.
Inventor： Etsurou Udagawa , Yuko Echizenya , Chisaki Miura , Yoshimi Nakata , Osamu Yamamoto
Abstract: Provided is a low-cost, easy-to-handle, effective therapeutic agent for wounds that is a therapeutic agent for skin wounds or rough skin that includes at least one selected from the group consisting of zinc chloride, zinc hydroxide, and zinc oxide and may include a pharmaceutically acceptable carrier.
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公开(公告)号：US20200237814A1
公开(公告)日：2020-07-30
申请号：US16851862
申请日：2020-04-17
Applicant: JFE MINERAL COMPANY, LTD.
Inventor： Etsurou UDAGAWA , Yuko ECHIZENYA , Chisaki MIURA , Yoshimi NAKATA , Osamu YAMAMOTO
Abstract: Provided is a low-cost, easy-to-handle, effective therapeutic agent for wounds that is a therapeutic agent for skin wounds or rough skin that includes at least one selected from the group consisting of zinc chloride, zinc hydroxide, and zinc oxide and may include a pharmaceutically acceptable carrier.
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Patent Agency Ranking
16.发明申请公开(公告)号：US20200061109A1
公开(公告)日：2020-02-27
申请号：US16467852
申请日：2017-12-08
Applicant: JFE MINERAL COMPANY, LTD.
Inventor： Yoshimi NAKATA , Yuko ECHIZENYA , Etsurou UDAGAWA , Osamu YAMAMOTO
Abstract: Provided are: zinc chloride hydroxide that is useful as a pharmaceutical ingredient, has excellent zinc ion sustained-releasbility when used as a pharmaceutical agent, and exhibits excellent stability as a pharmaceutical ingredient; and a production method therefor. Disclosed is zinc chloride hydroxide that can be used as a pharmaceutical ingredient, that has excellent zinc ion sustained-releasability, that includes at least one member selected from the group consisting of zinc chloride, zinc hydroxide, and zinc oxide.
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17.发明授权公开(公告)号：US11932544B2
公开(公告)日：2024-03-19
申请号：US16344955
申请日：2017-10-25
Applicant: JFE MINERAL COMPANY, LTD.
Inventor： Hidefumi Konnai , Shogo Shimazu
CPC classification number: C01B33/26 , B01J21/16 , B01J35/026 , C01B33/40 , C07B61/00 , C07D307/46 , C07H3/02 , C01P2002/82 , C01P2002/88 , C01P2004/13
Abstract: Disclosed is a novel solid catalyst having high catalytic activity, a method for producing the solid catalyst, and a catalytic reaction using the solid catalyst. A disclosed surface-modified halloysite is a halloysite having a carboxy group-containing group or a sulfo group-containing group on the surface thereof.
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公开(公告)号：US20220173391A1
公开(公告)日：2022-06-02
申请号：US17602422
申请日：2020-04-07
Applicant: JFE MINERAL COMPANY, LTD. , JFE STEEL CORPORATION
Inventor： Rintaro NAGANO , Yoshiaki HAMANO , Koki TOKUMASU , Mika EMA , Mikito SUTO , Akira MATSUZAKI , Hiroyuki MASUOKA
IPC: H01M4/525 , H01M4/505 , C01G53/00 , H01M4/04 , H01M10/0525
Abstract: A precursor of a positive electrode material with which it is possible to obtain a lithium-ion secondary cell having an excellent discharge capacity and cycle characteristics, and a method for manufacturing the precursor. The precursor is a precursor of a positive electrode material used for a lithium-ion secondary cell, wherein the precursor is at least one substance selected from the group made of nickel-manganese composite hydroxides and nickel-manganese composite oxides, the precursor contains nickel and manganese, the ratio of the nickel content relative to the nickel content and the manganese content is 0.45-0.60 inclusive in molar ratio, and the average valence of manganese is below 4.0.
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19.发明授权公开(公告)号：US11155932B2
公开(公告)日：2021-10-26
申请号：US16621993
申请日：2018-07-06
Applicant: JFE MINERAL COMPANY, LTD.
Inventor： Keiichiro Nakamura , Kazuhiko Echizenya
IPC: C30B29/32 , C04B35/499 , C30B11/00 , C30B29/30 , H01L41/187
Abstract: A method for producing a piezoelectric single crystal ingot shows small variation in the concentration of PbTiO3 in the growth direction of single crystal. A complete solid solution-type piezoelectric single crystal ingot is produced by using the Bridgman method, including: filling a starting material, wherein a relaxor having a compositional formula Pb(B1, B2)O3 is blended with lead titanate having a composition PbTiO3 to give a preset composition, into a crucible for growth; heating to the melting temperature to give a melted liquid layer; then moving the crucible for growth toward the low temperature side; and thus starting one-direction solidification from the lower part of the crucible to thereby produce a single crystal. During solidification, the feedstock containing the relaxor and lead titanate having a maximum grain size ≤3 mm is continuously supplied into the crucible.
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公开(公告)号：US20210246039A1
公开(公告)日：2021-08-12
申请号：US17049438
申请日：2019-04-24
Applicant: JFE MINERAL COMPANY, LTD.
Inventor： Hidefumi Konnai
IPC: C01B33/40
Abstract: The present invention provides a novel material using a meta-halloysite that does not exist prior art, and a production method therefor. The meta-halloysite powder of the present invention is characterized in that: the meta-halloysite is covered by elemental carbon; the meta-halloysite contains elemental carbon; the meta-halloysite powder is a powder containing granules formed by the aggregation of meta-halloysite comprising meta-halloysite nanotubes covered by elemental carbon; or the meta-halloysite powder is powder containing granules formed by the aggregation of meta-halloysite comprising meta-halloysite nanotubes, which are tubular meta-halloysite, wherein the meta-halloysite contains elemental carbon.
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