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公开(公告)号：US5648170A
公开(公告)日：1997-07-15
申请号：US230405
申请日：1994-04-20
申请人： Yoji Okano , Eiichi Kurita , Kazuo Fujioka , Koso Aoki , Hiromitsu Misawa , Minoru Kozawa
发明人： Yoji Okano , Eiichi Kurita , Kazuo Fujioka , Koso Aoki , Hiromitsu Misawa , Minoru Kozawa
CPC分类号： G11B5/70647 , C09C1/24 , C09C3/063 , G03G9/0837 , H01F1/112 , C01P2002/88 , C01P2004/38 , C01P2004/41 , C01P2004/50 , C01P2004/62 , C01P2004/84 , C01P2006/12 , C01P2006/42 , C01P2006/60 , C01P2006/62 , C01P2006/63 , C01P2006/64 , C01P2006/66 , C01P2006/90 , Y10S428/90 , Y10T428/2991
摘要： The disclosure describes coated granular magnetite particles comprising:granular magnetite particle as a core, andM.sub.x Fe.sub.2+y O.sub.z as a surface layer, wherein M is Zn or Co, 0.4.ltoreq.x.ltoreq.1, x+y=1, and 4.0.ltoreq.z.ltoreq.4.3,the amount of M in said M.sub.x Fe.sub.2+y O.sub.z being 0.5 to 6 mol % based on the total Fe content in said granular magnetite particle as a core; anda process for producing the coated granular magnetite particles.
摘要翻译： 本公开内容描述了包括粒状磁铁矿颗粒作为核的涂覆颗粒磁铁矿颗粒，MxFe2 + yOz作为表面层，其中M是Zn或Co，0.4≤x≤1，x + y = 1和4.0 所述MxFe2 + yOz中的M的量相对于作为芯的所述粒状磁铁矿颗粒中的总Fe含量为0.5〜6摩尔％ 以及制造涂覆的粒状磁铁矿颗粒的方法。
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2.发明授权
公开(公告)号：US5599627A
公开(公告)日：1997-02-04
申请号：US318493
申请日：1994-10-04
申请人： Koso Aoki , Hiromitsu Misawa , Yoji Okano , Minoru Kozawa , Naoki Uchida , Kazuo Fujioka
发明人： Koso Aoki , Hiromitsu Misawa , Yoji Okano , Minoru Kozawa , Naoki Uchida , Kazuo Fujioka
CPC分类号： B82Y30/00 , C09C1/24 , G03G9/0834 , G03G9/0837 , G11B5/70689 , G11B5/712 , H01F1/111 , H01F1/112 , C01P2002/32 , C01P2004/01 , C01P2004/03 , C01P2004/04 , C01P2004/32 , C01P2004/41 , C01P2004/50 , C01P2004/61 , C01P2004/64 , C01P2006/10 , C01P2006/11 , C01P2006/12 , C01P2006/19 , C01P2006/22 , C01P2006/42 , C01P2006/60 , C01P2006/62 , Y10S428/90 , Y10T428/2991 , Y10T428/2993
摘要： Magnetic toner particles composed of magnetite core particles containing 0.10 to 1.00 wt % silicon and a hydrous coprecipiate of silica and alumina deposited or adhered on the surfaces of the magnetite core particles. The magnetic toner particles have an area-average diameter of 0.05 to 1.0 .mu.m.
摘要翻译： 由含有0.10〜1.00重量％的硅的磁铁矿颗粒和沉积或附着在磁铁矿颗粒表面上的二氧化硅和氧化铝的含水共沉淀组成的磁性调色剂颗粒。 磁性调色剂颗粒的面积平均直径为0.05-1.0μm。
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公开(公告)号：US5578375A
公开(公告)日：1996-11-26
申请号：US313580
申请日：1994-09-27
申请人： Yoji Okano , Kazuo Fujioka , Koso Aoki , Hiromitsu Misawa , Minoru Kozawa , Naoki Uchida
发明人： Yoji Okano , Kazuo Fujioka , Koso Aoki , Hiromitsu Misawa , Minoru Kozawa , Naoki Uchida
CPC分类号： B82Y30/00 , C01G49/08 , C09C1/24 , C01P2002/32 , C01P2002/70 , C01P2002/77 , C01P2004/03 , C01P2004/50 , C01P2004/62 , C01P2004/64 , C01P2004/84 , C01P2006/12 , C01P2006/42 , C01P2006/62 , C01P2006/63 , C01P2006/64 , C01P2006/66 , C01P2006/80 , C01P2006/90 , Y10S428/90 , Y10T428/2982 , Y10T428/2991 , Y10T428/2995
摘要： Granular magnetite particles useful as coloring pigments assuming a black color and containing elemental aluminum, 3 to 6 wt %, in the magnetite crystal lattice. The magnetite has a spinel structure with a lattice constant of 8.340 to 8.375 .ANG..
摘要翻译： 颗粒状磁铁矿颗粒可用作假色为黑色的着色颜料，并含有3至6重量％的元素铝，在磁铁矿晶格中。 磁铁矿具有晶格常数为8.340〜8.375的尖晶石结构。
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公开(公告)号：US5470660A
公开(公告)日：1995-11-28
申请号：US131668
申请日：1993-10-05
申请人： Hiromitsu Misawa , Kazuo Fujioka , Koso Aoki , Eiichi Kurita , Yoji Okano , Minoru Kozawa
发明人： Hiromitsu Misawa , Kazuo Fujioka , Koso Aoki , Eiichi Kurita , Yoji Okano , Minoru Kozawa
CPC分类号： C09D7/1275 , C09C1/0081 , C09C1/0084 , C09C1/24 , C09D7/1225 , G03G9/0834 , G03G9/0836 , G03G9/0839 , C01P2002/32 , C01P2004/03 , C01P2004/04 , C01P2004/30 , C01P2004/32 , C01P2004/38 , C01P2004/41 , C01P2004/50 , C01P2004/62 , C01P2004/82 , C01P2006/10 , C01P2006/12 , C01P2006/20 , C01P2006/22 , C01P2006/42 , C01P2006/60 , C01P2006/80 , C08K3/22 , C08K7/18 , C08K9/02 , Y10T428/24331 , Y10T428/24347 , Y10T428/24355 , Y10T428/2991
摘要： Disclosed herein is iron oxide particles comprising:100 parts by weight of material iron oxide particles having a specific surface area represented by the following formula (1):6/(.rho..multidot.d.sub.3).times..phi..sub.s (1) wherein .rho. represents a specific gravity of said iron oxide particles, d.sub.3 represents an area-average particle diameter (0.1 .mu.m.ltoreq.d.sub.3 .ltoreq.1.0 .mu.m) and .phi..sub.s represents an area shape factor) (1.0.ltoreq..phi..sub.s .ltoreq.2.0); and0.25 to 10 parts by weight (calculated as an oxide) of the fine particles of the oxygen compound, the fine particles of the hydrate or mixed fine particles thereof of one element selected from the group consisting of Al, Si, Zr and Ti, which are adhered to the surfaces of said iron oxide particles;the increment of said specific surface area of said iron oxide particles being 1 to 6 m.sup.2 /g, and the increment of said specific surface area with respect to the amount of said fine particles being not less than 0.35.
摘要翻译： 本文公开的是氧化铁颗粒，其包含：100重量份的具有由下式（1）表示的比表面积的氧化铁颗粒：6 /（rho xd3）x phi s（1）其中rho表示 所述氧化铁颗粒，d3表示面积平均粒径（0.1μm±d3 <1.0μm），phi表示面积形状因子）（1.0≤i≤2.0）。 和氧化合物的细颗粒的0.25至10重量份（以氧化物计算），选自Al，Si，Zr和Ti中的一种元素的水合物或其混合微细颗粒， 它们附着在所述氧化铁颗粒的表面上; 所述氧化铁颗粒的比表面积的增量为1〜6m 2 / g，所述比表面积相对于所述微粒的量的增量为0.35以上。
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5.发明授权Composite carrier particles for electrophotography and process for producing the same 失效用于电摄影的复合载体颗粒及其制造方法
公开(公告)号：US5108862A
公开(公告)日：1992-04-28
申请号：US480492
申请日：1990-02-16
申请人： Souichiro Kishimoto , Tsutomu Sakaida , Yoshiaki Echigo , Keiichi Asami , Tetsuro Toda , Kazuo Fujioka , Eiichi Kurita , Toshiyuki Hakata , Shigeru Takaragi
发明人： Souichiro Kishimoto , Tsutomu Sakaida , Yoshiaki Echigo , Keiichi Asami , Tetsuro Toda , Kazuo Fujioka , Eiichi Kurita , Toshiyuki Hakata , Shigeru Takaragi
CPC分类号： G03G9/1075 , G03G9/10 , G03G9/1135
摘要： Disclosed herein are composite carrier particles for electrophotography comprising 80 to 99% by weight of ferromagnetic fine particles and a phenol resin, and having a number-average particle diameter of 10 to 1,000 .mu.m, a bulk density of not more than 2.0 g /cm.sup.3, and a curved surface configuration, and a process for producing the same.
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6.发明授权
公开(公告)号：US5843610A
公开(公告)日：1998-12-01
申请号：US955104
申请日：1997-10-21
申请人： Naoki Uchida , Kazuo Fujioka , Koso Aoki , Hiromitsu Misawa , Minoru Kozawa
发明人： Naoki Uchida , Kazuo Fujioka , Koso Aoki , Hiromitsu Misawa , Minoru Kozawa
IPC分类号： G03G9/083
CPC分类号： G03G9/083 , G03G9/0833 , G03G9/0834 , G03G9/0835 , G03G9/0836 , G03G9/0837 , G03G9/0838 , G03G9/0839 , Y10T428/2991 , Y10T428/2993 , Y10T428/2995
摘要： A magnetic toner containing 100 parts by weight of magnetic Fe.sup.2+ -containing iron oxide particles having an average particle size of 0.05 to 0.30 .mu.m, containing not less than 0.9 atm % and less than 1.7 atm % of silicon, calculated as Si, based on Fe, having a substantially cubic shape each ridge of which has a curved surface, and having a ratio .phi. represented by the following formula of more than 1.0 and less than 1.4: .phi.=l/w wherein l represents an average maximum length of said Fe.sup.2+ -containing particles and w represents an average minimum length of said Fe.sup.2+ -containing particles, and 10 to 900 parts by weight of a toner resin.
摘要翻译： 含有100重量份平均粒径为0.05-0.30μm的含Fe 2+的含铁氧化物颗粒的磁性调色剂，其含有不低于0.9atm％且小于1.7atm％的硅，以Si计，基于 Fe，具有基本上立方体形状，其每个脊具有弯曲表面，并且具有由以下公式表示的大于1.0且小于1.4的比率phi = 1 / w，其中l表示所述Fe 2+的平均最大长度， 并且w表示所述含Fe 2+的颗粒的平均最小长度，和10至900重量份的调色剂树脂。
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公开(公告)号：US5688852A
公开(公告)日：1997-11-18
申请号：US482734
申请日：1995-06-07
申请人： Hiromitsu Misawa , Kazuo Fujioka , Koso Aoki , Eiichi Kurita , Yoji Okano , Minoru Kozawa
发明人： Hiromitsu Misawa , Kazuo Fujioka , Koso Aoki , Eiichi Kurita , Yoji Okano , Minoru Kozawa
CPC分类号： C09D7/1275 , C09C1/0081 , C09C1/0084 , C09C1/24 , C09D7/1225 , G03G9/0834 , G03G9/0836 , G03G9/0839 , C01P2002/32 , C01P2004/03 , C01P2004/04 , C01P2004/30 , C01P2004/32 , C01P2004/38 , C01P2004/41 , C01P2004/50 , C01P2004/62 , C01P2004/82 , C01P2006/10 , C01P2006/12 , C01P2006/20 , C01P2006/22 , C01P2006/42 , C01P2006/60 , C01P2006/80 , C08K3/22 , C08K7/18 , C08K9/02 , Y10T428/24331 , Y10T428/24347 , Y10T428/24355 , Y10T428/2991
摘要： Disclosed herein is iron oxide particles comprising: 100 parts by weight of material iron oxide particles having a specific surface area represented by the following formula (1): 6/(.rho..multidot.d.sub.3).times..phi..sub.S (1) wherein .rho. represents a specific gravity of said iron oxide particles, d.sub.3 represents an area-average particle diameter (0.1 .mu.m.ltoreq.d.sub.3 .ltoreq.1.0 .mu.m) and .phi..sub.S represents an area shape factor) (1.0.ltoreq..phi..sub.S .ltoreq.2.0); and 0.25 to 10 parts by weight (calculated as an oxide) of the fine particles of the oxygen compound, the fine particles of the hydrate or mixed fine particles thereof of one element selected from the group consisting of Al, Si, Zr and Ti, which are adhered to the surfaces of said iron oxide particles; the increment of said specific surface area of said iron oxide particles being 1 to 6 m.sup.2 /g, and the increment of said specific surface area with respect to the amount of said fine particles being not less than 0.35.
摘要翻译： 本发明公开了一种氧化铁颗粒，其包含：100重量份具有由下式（1）表示的比表面积的氧化铁颗粒：6 /（rho xd3）x phi S（1）其中rho表示比表面积 所述氧化铁颗粒，d3表示面积平均粒径（0.1μm×d3 <1.0μm），phi S表示面积形状因子）（1.0≤i≤2.0）。 和氧化合物的细颗粒的0.25至10重量份（以氧化物计算），选自Al，Si，Zr和Ti中的一种元素的水合物或其混合微细颗粒， 它们附着在所述氧化铁颗粒的表面上; 所述氧化铁颗粒的比表面积的增量为1〜6m 2 / g，所述比表面积相对于所述微粒的量的增量为0.35以上。
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8.发明授权
公开(公告)号：US5118587A
公开(公告)日：1992-06-02
申请号：US553807
申请日：1990-07-18
IPC分类号： G03G9/083
CPC分类号： G03G9/0839 , G03G9/0836 , G03G9/0838 , Y10S430/104
摘要： Disclosed herein are magnetic particles used for an electrostatic latent image developer comprising composite particles containing from more than 80% by weight to not more than 99% by weight of fine ferromagnetic particles and a cured phenol resin, and having a number-average particle diameter of from not less than 1 .mu.m to less than 10 .mu.m and an apparent density of not greater than 1.5 g/cm.sup.3.
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公开(公告)号：US5512405A
公开(公告)日：1996-04-30
申请号：US482733
申请日：1995-06-07
申请人： Hiromitsu Misawa , Kazuo Fujioka , Koso Aoki , Eiichi Kurita , Yoji Okano , Minoru Kozawa
发明人： Hiromitsu Misawa , Kazuo Fujioka , Koso Aoki , Eiichi Kurita , Yoji Okano , Minoru Kozawa
CPC分类号： C09D7/1275 , C09C1/0081 , C09C1/0084 , C09C1/24 , C09D7/1225 , G03G9/0834 , G03G9/0836 , G03G9/0839 , C01P2002/32 , C01P2004/03 , C01P2004/04 , C01P2004/30 , C01P2004/32 , C01P2004/38 , C01P2004/41 , C01P2004/50 , C01P2004/62 , C01P2004/82 , C01P2006/10 , C01P2006/12 , C01P2006/20 , C01P2006/22 , C01P2006/42 , C01P2006/60 , C01P2006/80 , C08K3/22 , C08K7/18 , C08K9/02 , Y10T428/24331 , Y10T428/24347 , Y10T428/24355 , Y10T428/2991
摘要： Disclosed herein is iron oxide particles comprising:100 parts by weight of material iron oxide particles having a specific surface area represented by the following formula (1):6/(.rho..multidot.d.sub.3).times..phi..sub.s ( 1)wherein .rho. represents a specific gravity of said iron oxide particles, d.sub.3 represents an area-average particle diameter (0.1 .mu.m.ltoreq.d.sub.3 .ltoreq.1.0 .mu.m) and .phi..sub.s represents an area shape factor) (1.0.ltoreq..phi..sub.s .ltoreq.2.0); and0.25 to 10 parts by weight (calculated as an oxide) of the fine particles of the oxygen compound, the fine particles of the hydrate or mixed fine particles thereof of one element selected from the group consisting of Al, Si, Zr and Ti, which are adhered to the surfaces of said iron oxide particles;the increment of said specific surface area of said iron oxide particles being 1 to 6 m.sup.2 /g, and the increment of said specific surface area with respect to the amount of said fine particles being not less than 0.35.
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公开(公告)号：US5328793A
公开(公告)日：1994-07-12
申请号：US959907
申请日：1992-10-13
申请人： Hiromitsu Misawa , Kazuo Fujioka , Eiichi Kurita , Yasuhiko Fujii , Yoji Okano
发明人： Hiromitsu Misawa , Kazuo Fujioka , Eiichi Kurita , Yasuhiko Fujii , Yoji Okano
CPC分类号： G03G9/08795 , G03G9/0832 , G03G9/0836 , G03G9/0838
摘要： Disclosed herein are magnetic particles for a magnetic toner containing a low-molecular binder resin having a weight-average molecular weight of not more than 150,000, said magnetic particles comprising particulate magnetic particles containing iron as the main ingredient and having an oil absorption of not more than 24 ml/100 g and a degree of compaction of not less than 56, and a magnetic toner containing the said magnetic particles.
摘要翻译： 本文公开了一种含有重均分子量不超过15万的低分子粘合剂树脂的磁性调色剂的磁性颗粒，所述磁性颗粒包含含有铁作为主要成分的颗粒状磁性颗粒，并且吸油量不大 超过24ml / 100g，压实度不小于56，以及含有所述磁性颗粒的磁性调色剂。
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