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1.发明申请MAGNETIC POWDER FOR MAGNETIC RECORDING, MAGNETIC RECORDING MEDIUM, AND METHOD OF MANUFACTURING MAGNETIC POWDER FOR MAGNETIC RECORDING 有权用于磁记录的磁性粉末，磁记录介质以及制造用于磁记录的磁粉的方法公开(公告)号：US20150187471A1
公开(公告)日：2015-07-02
申请号：US14584557
申请日：2014-12-29
Applicant: FUJIFILM Corporation
Inventor： Yoichi HOSOYA
CPC classification number: G11B5/70678 , C01G49/0036 , C01P2004/10 , C01P2004/20 , C01P2004/32 , C01P2004/54 , C01P2004/64 , C01P2006/42 , H01F1/11 , Y10T428/2982
Abstract: An aspect of the present invention relates to a method of manufacturing hexagonal ferrite powder, which comprises preparing a hexagonal ferrite precursor-containing water-based solution by stirring and mixing a reaction solution which comprises an iron salt, an alkaline earth metal salt, and a base in a reaction tank, and removing the hexagonal ferrite precursor-containing water-based solution that has been prepared from the reaction tank and continuously feeding the hexagonal ferrite precursor-containing water-based solution into a reaction flow passage while conducting heating and pressurizing to converting the hexagonal ferrite precursor to hexagonal ferrite, wherein the preparation of the hexagonal ferrite precursor-containing water-based solution comprises a continual feed period during which feeding of the iron salt, the alkaline earth metal salt, and the base into a reaction tank which comprises a prereaction solution in which an iron salt and a base are not both present is continuously or intermittently continued, during the continual feed period, at least a base is fed over a feed passage separate from feeding of the iron salt and the alkaline earth metal salt, and an amount of at least one from among the iron salt, the alkaline earth metal salt, and the base that is fed per unit time during the continual feed period is controlled and/or acid is added to the reaction solution in the reaction tank so that a pH of the reaction solution within the reaction tank during the continual feed period falls within a range relative to a pHbefore, a pH of the prereaction solution, of pHbefore−2≦pH≦pHbefore+2.
Abstract translation: 本发明的一个方面涉及一种六角铁氧体粉末的制造方法，其包括通过搅拌和混合包含铁盐，碱土金属盐和碱土金属盐的反应溶液来制备含六方晶系铁氧体前体的水溶液 将反应槽中的六方晶系铁氧体前体水溶液从反应槽中除去，并将含六角铁素体前体的水性溶液连续供给反应流路，同时进行加热加压 将六方晶系铁氧体前体转变成六方晶系铁氧体，其中含有六方晶系铁氧体前体的水性溶液的制备包括将铁盐，碱土金属盐和碱进料到反应槽中的连续供料周期， 包括其中不存在铁盐和碱的预反应溶液 非常或间歇地连续，在连续进料期间，至少一个碱被供给到与铁盐和碱土金属盐的进料分开的进料通道中，并且至少一种从铁盐，碱 土壤金属盐和在连续进料期间每单位时间进料的碱被控制和/或将酸加入到反应罐中的反应溶液中，使得在连续进料期间反应罐内的反应溶液的pH 时间在相对于pH之前的pH值，预反应溶液的pH，pH在2-nlE之前的pH范围内; pH＆lt; n1E; pH在+2之前。
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2.发明申请FERROMAGNETIC HEXAGONAL FERRITE POWDER, METHOD OF MANUFACTURING THE SAME, AND MAGNETIC RECORDING MEDIUM 有权FERROMAGNETIC HEXAGONAL FERRITE POWDER，其制造方法和磁记录介质公开(公告)号：US20150093600A1
公开(公告)日：2015-04-02
申请号：US14499679
申请日：2014-09-29
Applicant: FUJIFILM CORPORATION
Inventor： Yoichi HOSOYA
CPC classification number: G11B5/714 , B32B5/16 , B32B2307/208 , B32B2429/02 , C01G49/0036 , C01G49/02 , C01P2004/10 , C01P2004/20 , C01P2004/30 , C01P2004/54 , C01P2004/64 , C01P2006/12 , C01P2006/42 , G11B5/70678 , Y02P20/544 , Y10T428/2982
Abstract: An aspect of the present invention relates to ferromagnetic hexagonal ferrite powder, the average particle size of which is equal to or less than 20 nm, and which comprises, on a particle number basis, equal to or more than 50% of ellipsoid hexagonal ferrite powders satisfying relation (1): 1.2
Abstract translation: 本发明的一个方面涉及其平均粒度等于或小于20nm的铁磁性六方铁氧体粉末，并且其以粒子数为基准包括等于或大于50％的椭圆六方铁氧体粉末 满足关系（1）：1.2 <长轴长/短轴长<2.0。 。 。 （1）。
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公开(公告)号：US20140246629A1
公开(公告)日：2014-09-04
申请号：US14278666
申请日：2014-05-15
Applicant: FUJIFILM Corporation
Inventor： Nori MIYAGISHIMA , Ryoji NISHIMURA , Yoichi HOSOYA , Takeshi FUNAKUBO , Kenji NAOI
CPC classification number: C09D11/30 , B22F1/0025 , B22F9/24 , B82Y30/00 , H01B1/02 , Y10T428/12431
Abstract: The present invention provides metal nanowires containing at least metal nanowires having a diameter of 50 nm or less and a major axis length of 5 μm or more in an amount of 50% by mass or more in terms of metal amount with respect to total metal particles.
Abstract translation: 本发明提供的金属纳米线至少含有直径为50nm以下的金属纳米线，长轴长度为5μm以上，相对于总金属粒子而言，金属量以金属量计为50质量％以上 。
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公开(公告)号：US20190148451A1
公开(公告)日：2019-05-16
申请号：US16242152
申请日：2019-01-08
Applicant: FUJIFILM Corporation
Inventor： Hirotaka TAKISHITA , Yoichi HOSOYA , Tokuju OIKAWA , Hidenori TAKAHASHI
IPC: H01L27/146 , G02B1/04 , H04N5/225 , C09K3/10 , G02B5/24
Abstract: A composition includes a metal particle and a resin and has a wavelength band A having a wavelength band width of 1 μm or more in a wavelength range of 1 to 14 μm and a wavelength band B having a lower absorbance than the wavelength band A and having a wavelength band width of 1 μm or more, and a ratio Amin/Bmax between a minimum value Amin of an absorbance of the wavelength band A and a maximum value Bmax of an absorbance of the wavelength band B is 3 or more.
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5.发明申请PRODUCTION METHOD FOR METAL OXIDE PARTICLES, METAL OXIDE POWDER, AND MAGNETIC RECORDING MEDIUM 审中-公开金属氧化物颗粒，金属氧化物粉末和磁记录介质的生产方法公开(公告)号：US20160203894A1
公开(公告)日：2016-07-14
申请号：US15073730
申请日：2016-03-18
Applicant: FUJIFILM Corporation
Inventor： Masashi SHIRATA , Yoichi HOSOYA
CPC classification number: H01F1/113 , C01B13/366 , C01G49/0036 , C01P2004/22 , C01P2004/54 , C01P2004/64 , C01P2006/12 , C01P2006/42 , G11B5/70678 , G11B5/714 , H01F1/11
Abstract: A production method for metal oxide particles includes: obtaining precursor particles of a metal oxide by performing a synthesis reaction of the precursor particles in the presence of an organic compound; and converting the obtained precursor particles into metal oxide particles by heating an aqueous solution containing the precursor particles to 300° C. or higher and pressurizing the aqueous solution at a pressure of 20 MPa or higher.
Abstract translation: 金属氧化物粒子的制造方法包括：在有机化合物的存在下进行前体粒子的合成反应，得到金属氧化物的前体粒子; 并且通过将含有前体颗粒的水溶液加热至300℃以上，并将该水溶液加压至20MPa以上的压力，将得到的母体粒子转化为金属氧化物粒子。
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Patent Agency Ranking
6.发明申请ACIDIC GAS SEPARATION MODULE, ACIDIC GAS SEPARATION DEVICE, AND TELESCOPE PREVENTION PLATE 有权酸性气体分离模块，酸性气体分离装置和预防涂层公开(公告)号：US20150182917A1
公开(公告)日：2015-07-02
申请号：US14644212
申请日：2015-03-11
Applicant: FUJIFILM CORPORATION
Inventor： Yoichi HOSOYA , Kenichi ISHIZUKA
CPC classification number: B01D63/106 , B01D53/226 , B01D53/228 , B01D63/10 , B01D63/12 , B01D69/02 , B01D2053/223 , B01D2257/504 , B01D2313/08 , B01D2319/02 , B01D2325/30 , Y02C10/10 , Y10T428/214
Abstract: An acidic gas separation module 10, which improves gas separation efficiency and reduces pressure loss, includes: a permeating gas collecting tube 12 having tube walls in which through holes 12A are formed; a layered body 14 that has at least an acidic gas separation layer 32 and that is wound on the permeating gas collecting tube 12; and telescope prevention plates 18 (a gas supply side 18A and a gas discharge side 18B) provided at both end faces in an axial direction of the wound layered body 14, wherein the ratio (D2/D1) of the open area ratio D2 of the telescope prevention plate on the gas discharge side 18B relative to the open area ratio D1 of the telescope prevention plate on the gas supply side 18A is from 0.5 to 0.9. An acidic gas separation device includes the acidic gas separation module 10.
Abstract translation: 提高气体分离效率并降低压力损失的酸性气体分离组件10包括：具有管壁的渗透气体收集管12，其中形成有通孔12A; 具有至少酸性气体分离层32并且被卷绕在渗透气体收集管12上的层状体14; 以及设置在卷绕层叠体14的轴向两端面的望远镜防止板18（气体供给侧18A和排气侧18B），其中，开口面积比D2的比（D2 / D1） 气体排出侧18B相对于气体供给侧18A上的望远镜防止板的开口面积比D1的望远镜防止板为0.5〜0.9。 酸性气体分离装置包括酸性气体分离模块10。
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7.发明申请公开(公告)号：US20200335247A1
公开(公告)日：2020-10-22
申请号：US16904932
申请日：2020-06-18
Applicant: FUJIFILM Corporation
Inventor： Yoichi HOSOYA , Masashi Shirata , Tatsuo Mikami
Abstract: To provide magnetoplumbite-type hexagonal ferrite particles represented by Formula (1) and having a single crystal phase, and the application. In Formula (1), A represents at least one metal element selected from the group consisting of Sr, Ba, Ca, and Pb, and x satisfies 1.5≤x≤8.0. AFe(12-x)AlxO19 Formula (1)
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公开(公告)号：US20170287517A1
公开(公告)日：2017-10-05
申请号：US15475615
申请日：2017-03-31
Applicant: FUJIFILM Corporation
Inventor： Yoichi HOSOYA , Masashi SHIRATA
CPC classification number: G11B5/70615 , B82Y25/00 , G11B5/70678 , G11B5/714 , G11B5/78 , H01F1/0063 , H01F1/11
Abstract: Hexagonal ferrite powder has an average particle size falling within a range of 10 nm to 50 nm, a switching field distribution SFD23° C. measured at a temperature of 23° C. that is less than or equal to 0.80, and a ratio of a switching field distribution SFD−190° C. that is measured at a temperature of −190° C. to the SFD23° C. (SFD−190° C./SFD23° C.) that is greater than 0.80.
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9.发明申请FERROMAGNETIC HEXAGONAL FERRITE POWDER, METHOD OF MANUFACTURING THE SAME, AND MAGNETIC RECORDING MEDIUM 审中-公开FERROMAGNETIC HEXAGONAL FERRITE POWDER，其制造方法和磁记录介质公开(公告)号：US20170040032A1
公开(公告)日：2017-02-09
申请号：US15298432
申请日：2016-10-20
Applicant: FUJIFILM Corporation
Inventor： Yoichi HOSOYA
CPC classification number: G11B5/714 , B32B5/16 , B32B2307/208 , B32B2429/02 , C01G49/0036 , C01G49/02 , C01P2004/10 , C01P2004/20 , C01P2004/30 , C01P2004/54 , C01P2004/64 , C01P2006/12 , C01P2006/42 , G11B5/70678 , Y02P20/544 , Y10T428/2982
Abstract: An aspect of the present invention relates to ferromagnetic hexagonal ferrite powder, the average particle size of which is equal to or less than 20 nm, and which comprises, on a particle number basis, equal to or more than 50% of ellipsoid hexagonal ferrite powders satisfying relation (1): 1.2
Abstract translation: 本发明的一个方面涉及其平均粒度等于或小于20nm的铁磁性六方铁氧体粉末，并且其以粒子数为基准包括等于或大于50％的椭圆六方铁氧体粉末 满足关系（1）：1.2 <长轴长/短轴长<2.0。 。 。 （1）。
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10.发明申请METHOD OF MANUFACTURING HEXAGONAL FERRITE POWDER, HEXAGONAL FERRITE POWDER, AND MAGNETIC RECORDING MEDIUM 审中-公开制造六角形粉末粉末，六角粉末粉末和磁记录介质的方法公开(公告)号：US20150279407A1
公开(公告)日：2015-10-01
申请号：US14673180
申请日：2015-03-30
Applicant: FUJIFILM Corporation
Inventor： Yoichi HOSOYA
CPC classification number: G11B5/70678 , C01G49/0036 , C01P2002/70 , C01P2004/32 , C01P2004/64 , C01P2006/42 , G11B5/714 , H01F1/11 , Y10T428/2982
Abstract: An aspect of the present invention relates to a method of manufacturing hexagonal ferrite powder, which comprises introducing a hexagonal ferrite precursor and an organic compound, either simultaneously or sequentially, into a feed passage into which water is being continuously fed while being heated and pressurized, continuously feeding a water-based solution comprising at least the hexagonal ferrite precursor, the organic compound, and water through the feed passage to a reaction flow passage within which a fluid flowing therein is subjected to heating and pressurizing to convert the hexagonal ferrite precursor into hexagonal ferrite in the reaction flow passage, discharging and feeding a water-based comprising the hexagonal ferrite from the reaction flow passage to a cooling element, and recovering the hexagonal ferrite from the water-based solution that has been cooled in the cooling element, wherein a solution temperature at the point of first contact between the hexagonal ferrite precursor and the organic compound is equal to or higher than 200° C. but lower than 300° C., and a pH of the water-based solution that has been cooled is equal to or higher than 6.0 but equal to or lower than 12.0.
Abstract translation: 本发明的一个方面涉及六角铁氧体粉末的制造方法，该方法包括将六方晶系铁氧体前体和有机化合物同时或依次引入加热和加压水中连续进料的进料通道中， 将包含至少六方晶系铁氧体前体，有机化合物和水的水溶液通过进料通道连续供给到其中流过其中的流体进行加热和加压的反应流动通道，以将六方晶系铁氧体前体转化为六方晶系 在反应流路中的铁素体，从反应流路向包含六方晶系铁氧体的水性物质排出并供给到冷却元件，并从在冷却元件中冷却的水性溶液中回收六方晶系铁氧体，其中， 在六边形铁素体之间的第一次接触点处的溶液温度 前体和有机化合物等于或高于200℃但低于300℃，并且被冷却的水基溶液的pH等于或高于6.0但等于或低于12.0 。
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