专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5175199A High transparency silica-titania glass beads, method for making, and light transmission epoxy resin compositions 失效
标题翻译：高透明度二氧化硅 - 玻璃纤维珠，制造方法和光传输环氧树脂组合物
公开(公告)号：US5175199A
公开(公告)日：1992-12-29
申请号：US651438
申请日：1991-02-07
申请人： Eiichi Asano , Takaaki Shimizu , Masatoshi Takita , Toshio Shiobara , Koji Futatsumori , Kazuhiro Arai
发明人： Eiichi Asano , Takaaki Shimizu , Masatoshi Takita , Toshio Shiobara , Koji Futatsumori , Kazuhiro Arai
IPC分类号： C03C1/00 , C03C12/00 , C08K7/20 , H01L33/56
CPC分类号： C03C12/00 , C03C1/006 , C08K7/20 , H01L33/56
摘要： High transparency silica-titania glass beads are characterized by a linear transmittance of at least 70% as measured at a wavelength of 900 nm to 600 nm by a specific measurement method. Such beads are prepared by hydrolyzing and polycondensing a silicon alkoxide and a titanium alkoxide to form a silica-titania sol, converting the sol into a dry gel, and then grinding the gel followed by heating or heating the gel followed by grinding. A light transmisson epoxy resin composition comprising a curable epoxy resin, a curing agent, and the high tranparency silica-titania glass beads has crack resistance and high transparency in cured state. It is useful in encapsulating optical semiconductor devices.

2. 发明授权

US5013585A Method for the preparation of surface-modified silica particles 失效
标题翻译：表面改性二氧化硅颗粒的制备方法
公开(公告)号：US5013585A
公开(公告)日：1991-05-07
申请号：US534450
申请日：1990-06-06
申请人： Takaaki Shimizu , Tsutomu Ogihara , Masatoshi Takita
发明人： Takaaki Shimizu , Tsutomu Ogihara , Masatoshi Takita
IPC分类号： B01J20/32 , C01B33/145 , C01B33/149 , C09C1/30 , C10M113/16
CPC分类号： B82Y30/00 , C01B33/145 , C01B33/149 , C09C1/3081 , C10M113/16 , C01P2002/86 , C01P2004/64 , C01P2006/10 , C01P2006/12 , C10M2201/14 , C10M2227/04 , Y10T428/2995
摘要： A method for the preparation of a stable silica organosol in a hydrophobic organic solvent is proposed. The method comprises (a) hydrolyzing a tetraalkoxy silane, e.g. tetraethoxy silane, in an alcoholic medium in the presence of a limited amount of water and ammonia as a catalyst under controlled conditions so as to produce a silica alcosol in which the silica particles satisfy the requirements that the alkoxy groups and silanolic hydroxy groups are bonded to the silicon atoms on the surface in densities of at least 3.5 .mu. moles/m.sup.2 and not exceeding 2 .mu. mmoles/m.sup.2, respectively, and the specific surface area S given in m.sup.2 /g and the average particle diameter D given in nm of the silica particles satisfy the relationship of S.times.D.gtoreq.5000, D being 1 nm or larger, and (b) admixing the alcosol of silica particles with an organosilicon compound selected from the group consisting of the compounds represented by the general formula R.sub.4-n SiX.sub.n, (R.sub.3 Si).sub.2 NH, or YO--(--SiR.sub.2 --O--).sub.m --Y, in which each R is, independently from the others, a hydrogen atom or a monovalent hydrocarbon group, X is a hydroxy group or an alkoxy group, Y is a hydrogen atom or an alkyl group, n is 1, 2 or 3 and m is a positive integer not exceeding 20, in an amount, for example, in the range from 0.01 to 10 moles per mole of the silica particles under agitation of the mixture to effect a reaction for the modification of the surface of the silica particles followed by replacement of the alcoholic medium with a desired organic solvent.
摘要翻译：提出了一种在疏水性有机溶剂中制备稳定的二氧化硅有机溶胶的方法。该方法包括（a）水解四烷氧基硅烷，例如四乙氧基硅烷，在有限量的水和氨作为催化剂的存在下，在控制条件下在醇介质中，以产生二氧化硅颗粒，其中二氧化硅颗粒满足烷氧基和硅烷醇羟基键合的要求表面上的硅原子的密度分别为至少3.5μmol/ m 2并且不超过2um mmoles / m 2，并且以m2 / g给出的比表面积S和以二氧化硅计的平均粒径D 颗粒满足SxD> / = 5000，D为1nm以上的关系，（b）将二氧化硅粒子的醇溶胶与选自由通式R4-nSiXn表示的化合物的有机硅化合物混合，（ R3Si）2NH或YO - （ - SiR2-O-）mY，其中每个R独立地为氢原子或一价烃基，X为羟基或烷氧基，Y为氢原子或烷基，n为1， 2或3，并且m是不超过20的正整数，其量例如在混合物搅拌下每摩尔二氧化硅颗粒为0.01至10摩尔，以实现改性表面的反应二氧化硅颗粒，然后用所需的有机溶剂置换醇介质。

3. 发明授权

US5302556A Synthetic silica glass articles and a method for manufacturing them 失效
标题翻译：合成二氧化硅玻璃制品及其制造方法
公开(公告)号：US5302556A
公开(公告)日：1994-04-12
申请号：US862799
申请日：1992-04-03
申请人： Takaaki Shimizu , Masatoshi Takita
发明人： Takaaki Shimizu , Masatoshi Takita
IPC分类号： C03B8/02 , C03B19/06 , C03B19/10 , C03B19/12 , C03C1/00 , C03C3/06
CPC分类号： C03C3/06 , C03B19/06 , C03B19/066 , C03B19/1065 , C03B19/12 , C03B20/00 , C03C1/006 , C03B2201/03 , C03B2201/04 , C03B2201/07 , C03B2201/23 , C03C2201/23 , C03C2203/26 , Y10S65/90 , Y10T428/131 , Y10T428/1314
摘要： A synthetic silica glass article made by hydrolyzing an alkoxysilane and thermally sintering the resulting silica; this synthetic silica glass article has a viscosity of not lower than 10.sup.10 poise at 1400.degree. C., and contains, as metallic impurities, less than 1 ppm of Al, less than 0.2 ppm of Fe, less than 0.2 ppm of Na, less than 0.2 ppm of K, less than 0.01 ppm of Li, less than 0.2 ppm of Ca, less than 0.02 ppm of Ti, less than 0.01 ppm of B, less than 0.01 ppm of P, less than 0.01 ppm of As.
摘要翻译：一种通过水解烷氧基硅烷并热烧结所得二氧化硅制成的合成二氧化硅玻璃制品; 该合成石英玻璃制品在1400℃下的粘度不低于1010泊，并且作为金属杂质含有少于1ppm的Al，小于0.2ppm的Fe，小于0.2ppm的Na，小于 0.2ppm的K，小于0.01ppm的Li，小于0.2ppm的Ca，小于0.02ppm的Ti，小于0.01ppm的B，小于0.01ppm的P，小于0.01ppm的As。

4. 发明授权

US5021073A Method of manufacturing synthetic silica glass 失效
标题翻译：制造合成石英玻璃的方法
公开(公告)号：US5021073A
公开(公告)日：1991-06-04
申请号：US576224
申请日：1990-08-31
申请人： Masatoshi Takita , Takaaki Shimizu
发明人： Masatoshi Takita , Takaaki Shimizu
IPC分类号： C03B8/02 , C03B19/12 , C03B20/00 , C03C3/06
CPC分类号： C03B19/12 , C03C3/06 , C03C2201/02 , C03C2203/26 , C03C2203/32 , Y02P40/57 , Y10S65/901
摘要： A method for manufacturing synthetic silica glass by reacting methyl silicate and aqueous ammonia, dispersing the silica particles produced in water, solidifying the silica by the addition of methyl silicate and heating, dehydrating, de-solventing, decarburizing and sintering the solid silica to produce a glass product. The sintered glass may be pulverized to produce a powder. The inventive method is easily carried out and avoids the high energy costs of the prior art. The glass product obtained exhibits excellent high temperature viscosity.

5. 发明授权

US5141786A Synthetic silica glass articles and a method for manufacturing them 失效
标题翻译：合成二氧化硅玻璃制品及其制造方法
公开(公告)号：US5141786A
公开(公告)日：1992-08-25
申请号：US485954
申请日：1990-02-27
申请人： Takaaki Shimizu , Masatoshi Takita
发明人： Takaaki Shimizu , Masatoshi Takita
IPC分类号： C03B8/02 , C03B19/06 , C03B19/10 , C03B19/12 , C03C1/00 , C03C3/06
CPC分类号： C03C3/06 , C03B19/06 , C03B19/066 , C03B19/1065 , C03B19/12 , C03B20/00 , C03C1/006 , C03B2201/03 , C03B2201/04 , C03B2201/07 , C03B2201/23 , C03C2201/23 , C03C2203/26 , Y10S65/90 , Y10T428/131 , Y10T428/1314
摘要： A synthetic silica glass article made by hydrolyzing an alkoxysilane and thermally sintering the resulting silica; this synthetic silica glass article has a viscosity of not lower than 10.sup.10 poise at 140.degree. C., and contains, as metallic impurities, less than 1 ppm at Al, less than 0.2 ppm of Fe, less than 0.2 ppm of Na, less than 0.2 ppm of K, less than 0.01 ppm of Li, less than 0.2 ppm of Ca, less than 0.02 ppm of Ti, less than 0.01 ppm of B, less than 0.01 of P, less than 0.01 ppm of As.

6. 发明授权

US5063181A Synthetic silica glass article for dopant-diffusion process in semiconductors 失效
标题翻译：合成二氧化硅玻璃制品在半导体中的掺杂扩散过程
公开(公告)号：US5063181A
公开(公告)日：1991-11-05
申请号：US427792
申请日：1989-10-26
申请人： Masatoshi Takita , Takaaki Shimizu
发明人： Masatoshi Takita , Takaaki Shimizu
IPC分类号： C03B8/02 , C03B19/09 , C03B19/10 , C03B20/00 , C03C1/00 , C03C3/06 , C30B31/10 , C30B31/14 , C30B35/00
CPC分类号： C30B31/14 , C03B19/09 , C03B19/1065 , C03C1/006 , C03C3/06 , C30B31/10 , C30B35/00 , C03C2201/02 , C03C2203/26
摘要： The invention provides a synthetic silica glass article or tool for a dopant-diffusing process in semiconductors, which is quite satisfactory in use in respect of the outstandingly small creeping at high temperatures, by working from a silica glass block having such a creeping characteristic that the elongation under a tension of 62.5 g/mm.sup.2 at a temperature of 1250.degree. C. does not exceed 0.025% after 5 minutes.

7. 发明授权

US4979973A Preparation of fused silica glass by hydrolysis of methyl silicate 失效
标题翻译：通过硅酸甲酯的水解制备熔融石英玻璃
公开(公告)号：US4979973A
公开(公告)日：1990-12-25
申请号：US404585
申请日：1989-09-08
申请人： Masatoshi Takita , Takaaki Shimizu
发明人： Masatoshi Takita , Takaaki Shimizu
IPC分类号： C03B19/09 , C03B20/00 , C03C1/00 , C03C3/06 , C30B15/10 , C30B35/00
CPC分类号： C03C1/006 , C03B19/095 , C03B20/00 , C03C3/06 , C30B15/10 , C30B35/002 , C03C2201/02 , C03C2203/26 , C03C2203/32 , Y10S65/90 , Y10S65/901
摘要： The invention provides a method for the preparation of synthetic fused silica glass containing a very small amount of hydroxyl groups and has a high viscosity at high temperatures suitable for use as a material of articles for semiconductor processing at high temperatures, such as a crucible for Czochralski single crystal growing of semiconductor silicon. The method comprises hydrolyzing methyl silicate in a medium containing a specified amount of ammonia as a hydrolysis catalyst to form silica particles which are heat-treated in several successive steps.

8. 发明申请

US20120121493A1 METHOD FOR PURIFYING CHLOROSILANES 有权
标题翻译：纯化氯霉素的方法
公开(公告)号：US20120121493A1
公开(公告)日：2012-05-17
申请号：US13386926
申请日：2010-07-07
申请人： Naoki Nagai , Takaaki Shimizu , Katsuhiro Uehara , Tohru Kubota
发明人： Naoki Nagai , Takaaki Shimizu , Katsuhiro Uehara , Tohru Kubota
IPC分类号： C01B33/107
CPC分类号： C01B33/10778
摘要： The present invention provides a method for obtaining high purity chlorosilanes from chlorosilanes containing boron impurities and phosphorus impurities. On the basis of the finding that solid by-product formation in the purification of chlorosilanes by adding an aromatic aldehyde results from a catalytic reaction by iron ions or rust-like iron, a Lewis base having a masking effect is added to chlorosilanes. Examples of the Lewis base include a divalent sulfur-containing compound and an alkoxysilane. The divalent sulfur-containing compound is preferably a compound represented by the formula: R—S—R′ (wherein R is a hydrocarbon group or a carbonyl group; and the sum of the carbon atoms in R and R′ is 7 or more), and the alkoxysilane is preferably a compound represented by the formula: RxSi(OR′)4-x (wherein R and R′ are each an alkyl group having 1 to 20 carbon atoms).
摘要翻译：本发明提供从含有硼杂质和磷杂质的氯硅烷中获得高纯度氯硅烷的方法。基于通过添加芳族醛的氯硅烷纯化产生固体副产物的结果是由铁离子或铁锈铁的催化反应产生的，将具有掩蔽效应的路易斯碱加入到氯硅烷中。路易碱碱的实例包括二价含硫化合物和烷氧基硅烷。二价含硫化合物优选为由下式表示的化合物：R-S-R'（其中R为烃基或羰基; R和R'中的碳原子总数为7以上）烷氧基硅烷优选为下式所示的化合物：RxSi（OR'）4-x（式中，R和R'分别为碳原子数为1〜20的烷基）。

9. 发明授权

US06811087B2 Barcode scanner 失效
标题翻译：扫码机
公开(公告)号：US06811087B2
公开(公告)日：2004-11-02
申请号：US10410395
申请日：2003-04-10
申请人： Norio Nakamura , Nobuyasu Goto , Takaaki Shimizu , Yutaka Ichinohe
发明人： Norio Nakamura , Nobuyasu Goto , Takaaki Shimizu , Yutaka Ichinohe
IPC分类号： G06K710
CPC分类号： G06K7/10851
摘要： A barcode scanner comprising a laser driving circuit to drive a laser by a pulse signal generated by an oscillator, a preamplifier to amplify a voltage of a barcode signal from a photodetector corresponding to a reflected light from a barcode scanned by a light output of the laser driven by the pulse signal, a high-pass filter to remove a direct current component contained in an output signal of the preamplifier, a variable gain amplifier which controls an amplification gain of an output signal of the high-pass filter and performs automatic gain control to set an output level almost constant, a synchronous detector to detect a pulse signal contained in an output signal of the variable gain amplifier in synchronization with the output pulse of the oscillator, and a binarization circuit to binarize an output signal of the synchronous detector.
摘要翻译：一种条形码扫描器，包括：激光驱动电路，用于通过由振荡器产生的脉冲信号来驱动激光;前置放大器，用于放大来自光电检测器的条形码信号的电压，所述光电检测器对应于来自由激光的光输出扫描的条形码的反射光由脉冲信号驱动的高通滤波器，去除包含在前置放大器的输出信号中的直流分量;可变增益放大器，其控制高通滤波器的输出信号的放大增益，并执行自动增益控制为了使输出电平几乎恒定，同步检波器与振荡器的输出脉冲同步地检测包含在可变增益放大器的输出信号中的脉冲信号，以及二值化电路，对同步检波器的输出信号进行二值化。

10. 发明授权

US5851426A Twisted nematic liquid crystal composition containing a silacyclohexane compound 失效
标题翻译：含有硅环己烷化合物的扭曲向列型液晶组合物
公开(公告)号：US5851426A
公开(公告)日：1998-12-22
申请号：US873667
申请日：1997-06-12
申请人： Takaaki Shimizu , Tatsushi Kaneko , Tsutomu Ogihara , Mutsuo Nakashima
发明人： Takaaki Shimizu , Tatsushi Kaneko , Tsutomu Ogihara , Mutsuo Nakashima
IPC分类号： C09K19/40 , C09K19/58 , C09K19/34 , C09K19/30
CPC分类号： C09K19/588 , C09K19/40
摘要： This invention provides twisted nematic liquid crystal compositions obtained by adding a cyclohexane ring-containing optically active compound of the following general formula (1) to a mixture of nematic liquid crystal compounds including at least one silacyclohexane compound, as well as guest-host liquid crystal compositions and liquid crystal display devices utilizing the same. ##STR1##
摘要翻译：本发明提供通过将含有下列通式（1）的含环己烷环的光学活性化合物加入到包括至少一种硅环己烷化合物的向列型液晶化合物以及客体主体液晶的混合物中而获得的扭曲向列型液晶组合物组合物和使用其的液晶显示装置。（1）

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式