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1. 发明授权

US5962343A Process for producing crystalline ceric oxide particles and abrasive 失效
标题翻译：生产结晶二氧化铈颗粒和磨料的方法
公开(公告)号：US5962343A
公开(公告)日：1999-10-05
申请号：US899796
申请日：1997-07-24
申请人： Toshio Kasai , Isao Ota , Takao Kaga , Tohru Nishimura , Kenji Tanimoto
发明人： Toshio Kasai , Isao Ota , Takao Kaga , Tohru Nishimura , Kenji Tanimoto
IPC分类号： C01F17/00 , C09K3/14 , H01L21/3105 , B24D3/34
CPC分类号： B82Y30/00 , C01F17/0043 , C09K3/1409 , C09K3/1463 , H01L21/31053 , C01P2002/72 , C01P2002/76 , C01P2004/61 , C01P2004/62 , C01P2004/64 , C01P2006/12
摘要： According to the present invention, a process is provided for producing crystalline ceric oxide particles having a particle diameter of 0.005 to 5 .mu.m, which comprises the steps of reacting a cerium (III) salt with an alkaline substance in an (OH)/(Ce.sup.3+) molar ratio of 3 to 30 in an aqueous medium in an inert gas atmosphere to produce a suspension of cerium (III) hydroxide, and blowing oxygen or a gas containing oxygen into the suspension at a temperature of 10 to 95.degree. C. and at an atmospheric pressure.
摘要翻译：根据本发明，提供了一种制备粒径为0.005至5μm的结晶氧化铈颗粒的方法，其包括以下步骤：使铈（III）盐与（OH）/（ Ce 3+）摩尔比为3〜30，在惰性气体气氛中在水性介质中产生氢氧化铈（III）的悬浮液，并在10〜95℃的温度下向该悬浮液中吹入氧气或含氧气体，在大气压下。

2. 发明授权

US06372003B1 Polishing abrasive of crystalline ceric oxide particles having surfaces modified with hydroxyl groups 失效
标题翻译：具有用羟基改性的表面的结晶二氧化铈颗粒抛光研磨剂
公开(公告)号：US06372003B1
公开(公告)日：2002-04-16
申请号：US09350147
申请日：1999-07-09
申请人： Toshio Kasai , Isao Ota , Takao Kaga , Tohru Nishimura , Kenji Tanimoto
发明人： Toshio Kasai , Isao Ota , Takao Kaga , Tohru Nishimura , Kenji Tanimoto
IPC分类号： C09K1300
CPC分类号： B82Y30/00 , C01F17/0043 , C01P2002/72 , C01P2002/76 , C01P2004/61 , C01P2004/62 , C01P2004/64 , C01P2006/12 , C09K3/1409 , C09K3/1463 , H01L21/31053
摘要： According to the present invention, a process is provided for producing crystalline ceric oxide particles having a particle diameter of 0.005 to 5 &mgr;m, which comprises the steps of reacting a cerium (III) salt with an alkaline substance in an (OH)/(Ce3+) molar ratio of 3 to 30 in an aqueous medium in an inert gas atmosphere to produce a suspension of cerium (III) hydroxide, and blowing oxygen or a gas containing oxygen into the suspension at a temperature of 10 to 95° C. and at an atmospheric pressure.
摘要翻译：根据本发明，提供一种制备粒径为0.005〜5μm的结晶性氧化铈粒子的方法，其包括使铈（III）盐与（OH）/（Ce 3+）中的碱性物质反应的工序，）摩尔比为3至30，在惰性气体气氛中在水性介质中产生氢氧化铈（III）的悬浮液，并在10至95℃的温度下将氧气或含氧的气体吹入悬浮液中，并在大气压力。

3. 发明授权

US6007592A Polishing composition for aluminum disk and polishing process therewith 失效
标题翻译：铝盘抛光组合物及其抛光工艺
公开(公告)号：US6007592A
公开(公告)日：1999-12-28
申请号：US962720
申请日：1997-11-03
申请人： Toshio Kasai , Isao Ota , Takao Kaga , Tohru Nishimura
发明人： Toshio Kasai , Isao Ota , Takao Kaga , Tohru Nishimura
IPC分类号： C09G1/02 , C09K3/14 , B24B1/00
CPC分类号： C09G1/02 , C09K3/1463
摘要： A polishing composition for an aluminum disk includes water, an alumina abrasive agent and a polishing accelerator. The polishing accelerator is preferably basic aluminum nitrate. A process for polishing an aluminum disk using the polishing composition is also provided.
摘要翻译：铝盘用抛光组合物包括水，氧化铝研磨剂和抛光促进剂。抛光促进剂优选为碱式硝酸铝。还提供了使用抛光组合物抛光铝盘的工艺。

4. 发明授权

US5643497A Aqueous zirconia sol and method of preparing same 失效
标题翻译：氧化锆水溶胶及其制备方法
公开(公告)号：US5643497A
公开(公告)日：1997-07-01
申请号：US460593
申请日：1995-06-02
申请人： Takao Kaga , Yutaka Kimura , Fumio Saito , Hiroaki Tanaka
发明人： Takao Kaga , Yutaka Kimura , Fumio Saito , Hiroaki Tanaka
IPC分类号： B01J13/00
CPC分类号： B01J13/00
摘要： A stable aqueous sol of colloidal zirconia having lowered surface activity and useful for polishing semiconductors and the like, is prepared by a process comprising calcining a colloidal zirconia having a specific surface area of 10 to 400 m.sup.2 /g, a particle size of 20 to 500 nm and a dehydratable water content of 4 to 15% by weight at 400.degree. to 1,000.degree. C. to form a calcined zirconia having a dehydratable water content of 0.1 to 2% by weight, and pulverizing the calcined zirconia in the presence of a water-soluble acid or alkali in water, to form the stable sol of colloidal zirconia having a specific surface area of 5 to 200 m.sup.2 /g, a particle size of 20 to 1,500 nm and a dehydratable water content of 0.1 to 3% by weight. The stable sol of colloidal zirconia has a ZrO.sub.2 concentration of 5 to 80% by weight.
摘要翻译：通过包括煅烧比表面积为10-400m 2 / g，粒度为20-500的胶体氧化锆的方法制备具有降低的表面活性并可用于抛光半导体等的胶态氧化锆稳定的水性溶胶并且在400-1000℃下可脱水的含水量为4至15重量％，以形成可脱水水含量为0.1至2重量％的煅烧氧化锆，并在煅烧的水的存在下粉碎煅烧氧化锆在水中的可溶性酸或碱，形成比表面积为5〜200m 2 / g，粒径为20〜1500nm，脱水水分为0.1〜3重量％的胶态氧化锆的稳定溶胶。胶体氧化锆的稳定溶胶的ZrO2浓度为5〜80重量％。

5. 发明授权

US5620637A Preparation of sintered zirconia body 失效
标题翻译：烧结氧化锆体的制备
公开(公告)号：US5620637A
公开(公告)日：1997-04-15
申请号：US343881
申请日：1994-11-17
申请人： Takao Kaga , Yuzi Hoshi , Yutaka Kimura
发明人： Takao Kaga , Yuzi Hoshi , Yutaka Kimura
IPC分类号： C04B35/486 , C04B35/622 , C04B35/64 , C04B35/48
CPC分类号： C04B35/486 , C04B35/62218 , C04B35/64
摘要： A sintered zirconia sheet is prepared by firing a green sheet of zirconia while placing at least one weight on the sheet to apply a load thereto. Preferably a weight made of a porous material having a porosity of 5 to 30% and having a weight per unit area W (g/cm.sup.2) and a surface area S (cm.sup.2) is placed on the sheet to apply a load per unit area G (g/cm.sup.2) to the sheet under the conditions: S.ltoreq.200, G.ltoreq.5, and W/G.gtoreq.0.5. Sintered zirconia sheets free of camber, distortion or cracking are obtained, particularly when their dimensions are at least 15 cm.times.15 cm and up to 0.5 mm thick.
摘要翻译：烧结氧化锆片材是通过在生产片材的氧化锆上烧制而制备的，同时将至少一个重量放置在片材上以施加载荷。优选地，将由孔隙率为5〜30％，单位面积重量W（g / cm 2）和表面积S（cm 2））的多孔材料制成的重量放置在片材上，以施加每单位面积G （g / cm 2）在条件下：S <= 200，G / = 0.5。特别是当它们的尺寸至少为15cm×15cm，最大厚度为0.5mm时，得到没有弯曲的氧化锆烧结片，变形或开裂。

6. 发明授权

US5292693A Slurry composition and sintered part prepared therefrom 失效
标题翻译：浆料组合物和由其制备的烧结部件
公开(公告)号：US5292693A
公开(公告)日：1994-03-08
申请号：US837972
申请日：1992-02-20
申请人： Takao Kaga , Yuzi Hoshi , Yutaka Kimura
发明人： Takao Kaga , Yuzi Hoshi , Yutaka Kimura
IPC分类号： C04B35/622 , C01G25/02 , C04B35/48 , C04B35/486 , H01B1/08 , H01G4/12 , H01M8/12
CPC分类号： H01M8/1253 , C01G25/02 , C04B35/486 , C01P2002/52 , C01P2004/20 , C01P2006/10 , C01P2006/12 , C01P2006/22 , C01P2006/60 , Y02E60/525 , Y02P70/56
摘要： A sheet-forming slurry composition is composed of zirconia powder, an organic binder, and a solvent. The zirconia powder contains 2 to 10 mol % of yttria in solid solution form and has a BET specific surface area of up to about 12 m.sup.2 /g and a mean particle size multiplied by the specific surface area of up to 3 .mu.m.m.sup.2 /g. The composition is formed into a green sheet having improved flexibility, binder removal capability, sinterability, and dimensional stability, which is then fired into a sintered part having improved denseness, gas barrier property, and surface smoothness.
摘要翻译：片状浆料组合物由氧化锆粉末，有机粘合剂和溶剂组成。氧化锆粉末含有固体溶液形式的2〜10摩尔％的氧化钇，其BET比表面积高达约12m 2 / g，平均粒径乘以比表面积高达3（μm）。 m2 / g。将组合物形成为具有改善的柔性，粘合剂去除能力，烧结性和尺寸稳定性的生片，然后将其烧制成具有改善的致密度，阻气性和表面光滑度的烧结部分。

7. 发明授权

US5223176A Zirconia sol and method for making the same 失效
标题翻译：氧化锆溶胶及其制作方法
公开(公告)号：US5223176A
公开(公告)日：1993-06-29
申请号：US829583
申请日：1992-02-03
申请人： Masamichi Obitsu , Takao Kaga , Yasuhiro Fujii
发明人： Masamichi Obitsu , Takao Kaga , Yasuhiro Fujii
IPC分类号： A61K33/24 , C01G25/02
CPC分类号： A61K33/24 , C01G25/02 , C01P2002/52 , C01P2004/61 , C01P2004/80 , C01P2006/10 , C01P2006/80
摘要： A stable basic zirconia sol can be prepared by adding to an acidic aqueous zirconia sol a dispersion stabilizer selected from the group consisting of a water-soluble organic acid having a hydroxyl group and a water-soluble organic compound having at least two hydroxyl groups, and thereafter adjusting the sol with a basic compound to pH 6 to 14.
摘要翻译：稳定的碱性氧化锆溶胶可以通过向酸性含水氧化锆溶胶中加入选自具有羟基的水溶性有机酸和具有至少两个羟基的水溶性有机化合物的分散稳定剂，以及然后用碱性化合物调节溶胶至pH6至14。

8. 发明授权

US4985229A Process for manufacturing fine zirconium oxide powder 失效
标题翻译：氧化锆微粉的制造方法
公开(公告)号：US4985229A
公开(公告)日：1991-01-15
申请号：US100723
申请日：1987-09-25
申请人： Masamichi Obitsu , Isao Tomi , Takao Kaga
发明人： Masamichi Obitsu , Isao Tomi , Takao Kaga
IPC分类号： C01G25/00 , C01G25/02 , C04B35/48
CPC分类号： B82Y30/00 , C01G25/02 , C01P2004/61 , C01P2004/62 , C01P2004/64 , C01P2006/10 , C01P2006/90
摘要： A process for manufacturing fine zirconium oxide powder comprises adding a hydroxide of at least one metal selected from calcium, magnesium, yttrium and a lanthanide series element to a zirconia sol, which is dehydrated, dried and calcined. A zirconia sol prepared by hydrolyzing under heating an aqueous solution containing a zirconium salt, zirconium hydroxide or zirconia hydrate and then filtering the hydrolized aqueous solution through a ultra-filtration membrane is preferably used.
摘要翻译：制造细小氧化锆粉末的方法包括将选自钙，镁，钇和镧系元素的至少一种金属的氢氧化物加入到氧化锆溶胶中，所述氧化锆溶胶经脱水，干燥和煅烧。优选使用通过在加热下水解含有锆盐，氢氧化锆或氧化锆水合物的水溶液，然后通过超滤膜过滤水解的水溶液而制备的氧化锆溶胶。

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