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1. 发明授权

US4772644A Method for resin encapsulation of a semiconductor device and a resin composition therefor 失效
标题翻译：半导体装置的树脂封装方法及其树脂组合物
公开(公告)号：US4772644A
公开(公告)日：1988-09-20
申请号：US459220
申请日：1983-01-19
申请人： Kunio Itoh , Kiyoshi Yokokawa , Tetuo Yoshida , Kazuo Koya
发明人： Kunio Itoh , Kiyoshi Yokokawa , Tetuo Yoshida , Kazuo Koya
IPC分类号： H01L23/29 , C01B33/12 , C01B33/18 , C08K3/36 , H01L23/31
CPC分类号： C08K3/36 , C01B33/12 , C01B33/183 , C01P2004/61 , C01P2004/62
摘要： While high-performance semiconductor devices encapsulated with a resin composition are subject to the problem of wrong operation due to the alpha-particles emitted from the trace amounts of radioactive impurities, e.g. uranium and thorium, contained in the silica filler incorporated in the resin composition, a means for solving this problem is provided by use of a silicon dioxide powder obtained by the pyrolysis of a volatilizable silicon compound free from radioactive impurities in an oxidizing condition and having an average particle diameter in the range from 0.5 to 100 .mu.m in place of the conventional silica fillers.
摘要翻译：虽然用树脂组合物封装的高性能半导体器件由于从微量的放射性杂质发射的α粒子，例如，包含在树脂组合物中的二氧化硅填料中的铀和钍通过使用通过在氧化条件下热解不含放射性杂质的挥发性硅化合物而获得的二氧化硅粉末来提供解决该问题的方法，并且具有平均粒径在0.5至100μm的范围内，代替常规的二氧化硅填料。

2. 发明授权

US4874416A Base material of optical fibers and a method for the preparation thereof 失效
标题翻译：光纤基材及其制备方法
公开(公告)号：US4874416A
公开(公告)日：1989-10-17
申请号：US188118
申请日：1988-04-25
申请人： Kiyoshi Yokokawa , Kazuo Koya
发明人： Kiyoshi Yokokawa , Kazuo Koya
IPC分类号： G02B6/00 , C03B8/04 , C03B19/14 , C03B20/00 , C03B37/012 , C03B37/014 , C03B37/018 , G02B6/036
CPC分类号： C03B37/01493 , C03B37/014
摘要： In place of the conventional rod-in-tube method, a novel method is proposed for the preparation of a high-quality base material of quartz glass for optical fibers according to which a glassy rod composed of the core portion of a larger refractive index and the first cladding layer of a smaller refractive index is first prepared by silica soot deposition by the flame hydrolysis of a gaseous silicon compound followed by dehydration and vitrification, and then the glassy rod is covered with a layer of further silica soot deposition which is subsequently converted to the second cladding layer by vitrification. The inventive base material for optical fibers is excellent in the geometry relative to the diameter of the core portion and thickness of the cladding layer as well as concentricity of the core and the cladding.
摘要翻译：代替传统的棒管式方法，提出了一种制备光纤石英玻璃的高质量基材的新方法，根据该方法，由折射率较大的芯部分组成的玻璃棒和首先通过二氧化硅烟灰沉积通过气态硅化合物的火焰水解然后进行脱水和玻璃化来制备较小折射率的第一包层，然后玻璃棒被另外的二氧化硅烟灰沉积层覆盖，随后将其转化通过玻璃化到第二包层。本发明的光纤基材相对于芯部的直径和包层的厚度以及芯和包层的同心度的几何形状优异。

3. 发明授权

US4608071A Method for reducing diameter of a glass rod or tube by drawing 失效
标题翻译：通过拉丝减小玻璃棒或管的直径的方法
公开(公告)号：US4608071A
公开(公告)日：1986-08-26
申请号：US691984
申请日：1985-01-16
申请人： Kiyoshi Yokokawa , Kazuo Koya , Syouji Hosino
发明人： Kiyoshi Yokokawa , Kazuo Koya , Syouji Hosino
IPC分类号： C03B23/08 , C03B23/047 , C03B37/012 , C03B37/027 , C03B23/13
CPC分类号： C03B23/047 , C03B37/0124 , C03B2205/02
摘要： The invention provides an efficient and accurate method for reducing the diameter of a rod or tube of glass, e.g. fused quartz glass rod as a base material of optical fibers, by drawing when the rod or tube is heated and in a softened and plastically deformable state. Different from conventional methods in which the glass rod or tube is held in a horizontal disposition and drawn in the horizontal axial direction or the rod or tube is held vertically and drawing is effected by the downward movement of the lower grip, the rod or tube in the inventive method is held vertically and drawing thereof is effected by the upward movement of the upper grip along with the gradual downward shift of the heating zone relative to the lower grip so that the problems in the prior art methods such as warp and an uneven diameter profile of the drawn rod or tube can be minimized.
摘要翻译：本发明提供了一种用于减小玻璃棒或管的直径的有效和精确的方法，例如，熔融石英玻璃棒作为光纤的基材，通过在棒或管被加热并且处于软化和塑性变形状态时拉伸。不同于传统方法，其中玻璃棒或管被保持在水平布置中并且在水平轴向方向上被拉伸或者杆或管被垂直地保持并且拉伸是通过下把手的向下运动来实现的，杆或管在本发明的方法被垂直地保持，并且通过上把手的向上运动以及加热区相对于下把手的逐渐向下移动来实现其绘制，使得现有技术方法中的问题如翘曲和不均匀直径拉制的杆或管的轮廓可以最小化。

4. 发明授权

US4690504A Quartz glass-made optical fibers and a method for the preparation thereof 失效
标题翻译：石英玻璃制造的光纤及其制备方法
公开(公告)号：US4690504A
公开(公告)日：1987-09-01
申请号：US739874
申请日：1985-05-31
申请人： Kiyoshi Yokokawa , Kazuo Koya
发明人： Kiyoshi Yokokawa , Kazuo Koya
IPC分类号： C03B37/014 , C03C13/04 , G02B6/00 , G02B6/02
CPC分类号： C03C13/045 , C03B37/014 , C03B37/01446 , G02B6/02 , C03B2201/12 , C03B2203/22
摘要： The quartz glass-made optical fiber of the invention is formed of the core portion and the cladding portion each doped with fluorine to decrease the refractive index, the concentration of fluorine being higher in the cladding than in the core, so that the core portion has a refractive index lower by 0.01 to 0.1% than that of an undoped fused quartz glass and the cladding portion has a refractive index lower by at least 0.2% than that of the core portion. By virtue of the fluorine doping throughout, the optical fiber is free from the drawbacks due to the oxygen deficiency in the fused quartz glass and the light transmission performance thereof is remarkably stable. A method for the preparation of the optical fiber is proposed including the steps of silica particle deposition by the flame hydrolysis of a silicon compound, doping with a fluorine compound and vitrification for each of the core and the cladding portions.
摘要翻译：本发明的石英玻璃制造的光纤由芯部和包层部分形成，每个芯部分和包层部分均掺杂有氟以降低折射率，在包层中氟的浓度高于芯中的浓度，使得芯部具有折射率比未掺杂的熔融石英玻璃的折射率低0.01〜0.1％，折射率比芯部的折射率低0.2％以上。由于整个氟掺杂，光纤没有由于熔融石英玻璃中的氧缺乏而导致的缺点，并且其光透射性能非常稳定。提出了一种制备光纤的方法，包括以下步骤：通过硅化合物的火焰水解沉积二氧化硅颗粒，掺杂氟化合物，并对每个芯和包层部分进行玻璃化。

5. 发明授权

US5540059A Method and apparatus for supplying gaseous raw material 失效
标题翻译：用于提供气态原料的方法和设备
公开(公告)号：US5540059A
公开(公告)日：1996-07-30
申请号：US378380
申请日：1995-01-25
申请人： Kiyoshi Yokokawa
发明人： Kiyoshi Yokokawa
IPC分类号： F17D1/04 , B01J4/00 , B01J7/00 , C03B8/04 , C03B37/014 , C03B37/018 , C23C16/44 , C30B25/14 , H01L21/205 , F17C3/10
CPC分类号： C23C16/44 , C03B37/01413 , C03B2207/81 , C03B2207/85 , C03B2207/88
摘要： Method and apparatus for supplying a gaseous raw material to plural users. A liquid raw material is evaporated by a single evaporation means and supplied to a gaseous raw material takeout portion provided with a plurality of takeout ports. The gas pressure is varied according to amounts of the gaseous raw material taken out of the takeout ports. The pressure variations are regulated by a main pressure-adjusting means mounted downstream of the gaseous raw material takeout portion. Extra gaseous raw material is sent to a gaseous raw material-condensing means, where the material is liquified. Then, the liquified material is fed back to the evaporation means. Thus, a closed circulatory loop circuit is formed. The gas pressure in the gaseous raw material takeout portion is regulated. The gaseous raw material is distributed to plural users at any desired time at their respective flow rates such that supply of the raw material to each individual user is carried out independent of supply to other users.
摘要翻译：向多个用户供应气态原料的方法和装置。液体原料通过单个蒸发装置蒸发并供给到设有多个取出口的气态原料取出部分。气体压力根据从取出口取出的气态原料的量而变化。压力变化由安装在气态原料取出部分下游的主压力调节装置调节。额外的气态原料被送到气态原料冷凝装置，在那里材料液化。然后，将液化材料反馈回蒸发装置。因此，形成封闭的循环回路电路。调节气态原料取出部分中的气体压力。气态原料以各自的流量在任何期望的时间分配给多个用户，从而独立于对其他用户的供应来执行向每个个体用户的原材料供应。

6. 发明授权

US4094949A Method for preparing shaped articles of a fluorinated elastomer 失效
标题翻译：制备氟化弹性体成型制品的方法
公开(公告)号：US4094949A
公开(公告)日：1978-06-13
申请号：US690971
申请日：1976-05-28
申请人： Kiyoshi Yokokawa , Noboru Shimamoto
发明人： Kiyoshi Yokokawa , Noboru Shimamoto
IPC分类号： B29B15/00 , B29C37/00 , C08J3/00 , C08J5/00 , C08F29/22
CPC分类号： C08J3/00 , C08J5/00 , C08J2327/12 , Y10S264/71
摘要： A fluorinated elastomer is blended with a poly(vinylidene fluoride) resin at a temperature between the temperature of 70.degree. C below the melting temperature of the resin and the decomposition temperature of the same resin to form a resin blend capable of giving shaped articles having superior mechanical strengths. The resin blend is suitable for preparing heat-shrinkable articles like heat-shrinkable tubes by heating with expansion by internal pressure at an elevated temperature higher than the melting temperature of the resin, followed by cooling without release of the pressure to room temperature where the pressure is released. Such heat-shrinkable tubes can readily become shrunken by re-heating.
摘要翻译：将氟化弹性体与聚（偏二氟乙烯）树脂在低于树脂的熔融温度70℃的温度和相同树脂的分解温度之间的温度下混合，形成能够赋予成型品的树脂共混物机械强度。树脂共混物适用于通过在高于树脂的熔融温度的升高的温度下通过内部压力进行加热加热制备热收缩制品，然后冷却而不将压力释放到室温，其中压力发行了。这种热收缩管容易通过再加热而收缩。

7. 发明授权

US5837334A Large sized quartz glass tube, large scale quartz glass preform, process for manufacturing the same and quartz glass optical fiber 失效
标题翻译：大型石英玻璃管，大型石英玻璃预制件，制造方法和石英玻璃光纤
公开(公告)号：US5837334A
公开(公告)日：1998-11-17
申请号：US710401
申请日：1996-09-17
申请人： Kiyoshi Yokokawa , Masaaki Aoyama , Gerhart Vilsmeier
发明人： Kiyoshi Yokokawa , Masaaki Aoyama , Gerhart Vilsmeier
IPC分类号： C03B37/022 , B24B19/22 , B28D1/04 , C03B23/047 , C03B37/012
CPC分类号： C03B37/01228 , B24B19/226 , B28D1/041 , C03B23/047 , C03B37/01205 , C03B37/01211 , C03B37/01231 , C03B37/0124 , C03B2201/23 , Y02P40/57 , Y10S65/08 , Y10T428/131 , Y10T428/24942 , Y10T428/26
摘要： A quartz glass tube, produced by mechanically processing a natural/synthetic quartz glass mother material, having 50-300 mm.phi. in outer diameter, from. 1 to 7 in outer to inner diameter ratio, 10 mm or more in thickness and 2% or less in thickness error; a large-scale quartz glass preform integrally combining the large-sized quartz glass tube with a core glass rod for an optical fiber using a rod-in-tube technique; and a method for manufacturing a large-scale quartz glass preform performing the mechanical processing with a high precision machine, i.e., integrating a core rod for an optical fiber under a rod in process with a quartz glass tube, a tube diameter of which is controlled by heating, hot drawing or hot drawing with pressure by using a tool-free drawing method.
摘要翻译：通过机械加工天然/合成石英玻璃母材制成的石英玻璃管，其外径为50-300毫米。外径比为1〜7，厚度为10mm以上，厚度误差为2％以下。大尺寸石英玻璃预制件，使用管棒技术将大型石英玻璃管与用于光纤的芯玻璃棒整体结合; 以及制造用高精度机械进行机械加工的大规模石英玻璃预制件的方法，即将石英玻璃管内的光纤纤维的芯棒与石英玻璃管一体化，其管径被控制通过使用无工具的拉伸方法通过加热，热拉伸或压力拉伸。

8. 发明授权

US5266596A L- or DL-threo-3-(3,4-dihydroxyphenyl)serine for the treatment of urinary incontinence 失效
标题翻译： L-或DL-苏式-3-（3,4-二羟基苯基）丝氨酸，用于治疗尿失禁
公开(公告)号：US5266596A
公开(公告)日：1993-11-30
申请号：US858184
申请日：1992-03-26
申请人： Kiyoshi Yokokawa , Shuji Takaori
发明人： Kiyoshi Yokokawa , Shuji Takaori
IPC分类号： A61K31/195 , A61P13/02 , A61P15/00 , C07C229/36
CPC分类号： A61K31/195 , Y10S514/869
摘要： DL- or L-threo-3-(3,4-dihydroxyphenyl)serine is effective for the treatment of urinary incontinence, shows no side effects such as urine discharge disturbance, palpitation and hypertension, and has low toxicity.

9. 发明授权

US5785729A Method for manufacturing large-sized quartz glass tube 失效
标题翻译：制造大型石英玻璃管的方法
公开(公告)号：US5785729A
公开(公告)日：1998-07-28
申请号：US874321
申请日：1997-06-13
申请人： Kiyoshi Yokokawa , Masaaki Aoyama , Gerhart Vilsmeier
发明人： Kiyoshi Yokokawa , Masaaki Aoyama , Gerhart Vilsmeier
IPC分类号： C03B37/022 , B24B19/22 , B28D1/04 , C03B23/047 , C03B37/012 , C03B20/00 , C03B23/26 , C03B37/00
CPC分类号： C03B37/01228 , B24B19/226 , B28D1/041 , C03B23/047 , C03B37/01205 , C03B37/01211 , C03B37/01231 , C03B37/0124 , C03B2201/23 , Y02P40/57 , Y10S65/08 , Y10T428/131 , Y10T428/24942 , Y10T428/26
摘要： A method for fabricating a large-sized primary treated quartz glass tube by perforating a cylindrical quartz glass mother material by a hot carbon drill press-in-process followed by etching and washing. The large-sized primary treated quartz glass tube is converted to a large-sized quartz glass preform by combining it with a core glass rod for an optical fiber. Another embodiment is a method for fabricating a large-sized quartz glass tube by heating, hot drawing or hot drawing under pressure using a tool-free drawing method under control of an inside pressure of the large-sized primary treated quartz glass tube at a temperature ranging from 1600.degree. C. to 3000.degree. C. to satisfy a specific equation.
摘要翻译：一种用于通过热碳钻压制工艺对圆柱形石英玻璃母材进行穿孔，然后蚀刻和洗涤来制造大型主要处理过的石英玻璃管的方法。通过将大尺寸的主要处理过的石英玻璃管与用于光纤的芯玻璃棒组合，将其转化为大尺寸的石英玻璃预制件。另一个实施例是一种通过在压力下的加热，热拉伸或热拉伸来制造大型石英玻璃管的方法，该方法是在大型主要处理过的石英玻璃管的内部温度的控制下，使用无工具的拉伸方法范围从1600℃到3000℃以满足特定方程。

10. 发明授权

US4000108A Silicone resin molding compositions 失效
标题翻译：硅树脂模塑组合物
公开(公告)号：US4000108A
公开(公告)日：1976-12-28
申请号：US510703
申请日：1974-09-30
申请人： Kiyoshi Yokokawa , Yasuhisa Tanaka , Jun Koizumi , Noboru Shimamoto , Tokio Sekiya
发明人： Kiyoshi Yokokawa , Yasuhisa Tanaka , Jun Koizumi , Noboru Shimamoto , Tokio Sekiya
IPC分类号： C08L83/00 , C08K7/14 , C08K7/20 , C08K7/28 , C08L83/04
CPC分类号： C08K7/20 , C08K7/28
摘要： Silicone resin-based molding compositions filled with spherical glass bodies, i.e., void-free glass beads or hollow glass spheres, have the possibility to give molded articles colored in white or light-tone colors different from conventional molding compositions filled with other inorganic fillers which are rather highly abrasive against metal surfaces of the apparatus employed for processing the molding compositions and which causes dark stains to the molding compositions leading to the necessity to color them in black or dark-tone colors in order to mask the stains. The molded articles fabricated with the molding compositions of the present invention colored in white or light-tone colors are very attractive where sanitary cleanliness or fashionableness is important.

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