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    • 1. 发明授权
    • Method of producing high purity zirconia powder from zircon powder
    • 从锆石粉生产高纯度氧化锆粉末的方法
    • US4755365A
    • 1988-07-05
    • US914020
    • 1986-10-01
    • Toshihiko FunahashiRyoji UchimuraYukio OguchiKenichi Ueda
    • Toshihiko FunahashiRyoji UchimuraYukio OguchiKenichi Ueda
    • C01G25/02
    • C01G25/02C01P2004/51C01P2004/61C01P2004/62C01P2004/80C01P2006/10C01P2006/80
    • In producing zirconia powder by desiliconizing heat treatment of a mixture of zircon powder and a powdery carbon-containing material, optionally with addition of a zirconia stabilizing oxide such as calcia or yttria, in a nonoxidizing atmosphere the conversion of silica into SiO and dissipation of gaseous SiO are promoted and completed by performing the heat treatment under reduced pressure, viz. at a pressure not higher than 0.6 atm. Zirconia powder of very high purity can surely be obtained, even when a large batch of the raw material mixture is treated, by performing the reduced pressure desiliconizing heat treatment in two stages: first at 1200.degree.-1550.degree. C. until almost complete conversion of silica to SiO and then at 1550.degree.-2000.degree. C. The mole ratio of C to SiO.sub.2 in the raw material mixture must be 0.4-2.0. For further enhancement of purity, zirconia powder obtained by the desiliconizing treatment may be subjected to oxidation heat treatment. Efficiency of the desiliconizing heat treatment can be enhanced by precedingly forming the raw material mixture into porous lump(s) whose bulk density is in the range from 0.7 to 2.0.
    • 在通过对锆石粉末和含粉状碳材料的混合物进行脱硅热处理来生产氧化锆粉末中,任选地在非氧化气氛中加入氧化锆稳定氧化物如氧化钙或氧化钇,将二氧化硅转化为SiO和气态 通过在减压下进行热处理来促进和完成SiO。 压力不大于0.6atm。 即使大批原料混合物被处理,也可以分两步进行减压脱硅热处理:首先在1200〜-1550℃直至几乎完全转化 二氧化硅至SiO,然后在1550°-2000℃。原料混合物中C与SiO 2的摩尔比必须为0.4-2.0。 为了进一步提高纯度,可以对通过脱硅处理获得的氧化锆粉末进行氧化热处理。 可以通过将原料混合物先前成型为堆积密度为0.7-2.0的多孔块来提高脱硅热处理的效率。
    • 3. 发明授权
    • Fiber laser unit
    • 光纤激光单元
    • US07372877B2
    • 2008-05-13
    • US10518234
    • 2003-06-20
    • Akira ShirakawaKenichi UedaHirofumi KanHirofumi Miyajima
    • Akira ShirakawaKenichi UedaHirofumi KanHirofumi Miyajima
    • H01S3/30
    • H01S3/2383H01S3/067H01S3/06708
    • Fiber laser unit 1 comprises a plurality of fiber lasers 2 and 3 that generate laser beams by exciting a laser active substance inside cores 2a and 3a by exciting light, propagate the laser beams inside the cores 2a and 3a, and output the laser beams from the end portions 2c and 3c, wherein the respective fiber lasers 2 and 3 have resonators 4 and 5 that reflect the laser beams on both ends 2b, 2c, 3b, and 3c thereof and have a structure in which a part of the cores 2a and 3a is reduced in diameter, the diameter reduced portions of the cores 2a and 3a are made proximal to each other, injection synchronization is carried out inside the resonators 4 and 5 by laser beams leaked from the cores 2a and 3a, and a loss is applied to the port of either one of the fiber lasers 2 and 3. According to this fiber laser unit 1, by a simple structure in which the cores 2a and 3a are made proximal to each other and injection synchronization is carried out by using laser beams leaked from the cores 2a and 3a, coherent addition of lasers with extremely high addition efficiency is realized.
    • 光纤激光单元1包括多个光纤激光器2和3,其通过激发光激发芯2A和3a内的激光活性物质来产生激光束,并将激光束传播到芯2a和3a内,并输出 来自端部2c和3c的激光束,其中各个光纤激光器2和3具有在两端2b,2c,3b和3c的反射激光束的谐振器4和5,并且具有结构 其中芯部2a和3a的一部分直径减小,芯部2a和3a的直径减小的部分彼此靠近,通过激光束在谐振器4和5内部进行注射同步 从芯部2a和3a泄漏,并且损耗被施加到光纤激光器2和3中的任一个的端口。 根据该光纤激光器单元1,通过使芯2a和3a彼此靠近并且通过使用从芯2a和3a泄漏的激光束进行注射同步的简单结构,将相干添加 实现了极高的附加效率的激光器。
    • 4. 发明申请
    • Fiber laser unit
    • 光纤激光单元
    • US20050238065A1
    • 2005-10-27
    • US10518234
    • 2003-06-20
    • Akira ShirakawaKenichi UedaHirofumi KanHirofumi Miyajima
    • Akira ShirakawaKenichi UedaHirofumi KanHirofumi Miyajima
    • G02B6/287H01S3/06H01S3/067H01S3/07H01S3/082H01S3/23H01S3/30
    • H01S3/2383H01S3/067H01S3/06708
    • Fiber laser unit 1 comprises a plurality of fiber lasers 2 and 3 that generate laser beams by exciting a laser active substance inside cores 2a and 3a by exciting light, propagate the laser beams inside the cores 2a and 3a, and output the laser beams from the end portions 2c and 3c, wherein the respective fiber lasers 2 and 3 have resonators 4 and 5 that reflect the laser beams on both ends 2b, 2c, 3b, and 3c thereof and have a structure in which a part of the cores 2a and 3a is reduced in diameter, the diameter reduced portions of the cores 2a and 3a are made proximal to each other, injection synchronization is carried out inside the resonators 4 and 5 by laser beams leaked from the cores 2a and 3a, and a loss is applied to the port of either one of the fiber lasers 2 and 3. According to this fiber laser unit 1, by a simple structure in which the cores 2a and 3a are made proximal to each other and injection synchronization is carried out by using laser beams leaked from the cores 2a and 3a, coherent addition of lasers with extremely high addition efficiency is realized.
    • 光纤激光单元1包括多个光纤激光器2和3,其通过激发光激发芯2A和3a内的激光活性物质来产生激光束,并将激光束传播到芯2a和3a内,并输出 来自端部2c和3c的激光束,其中各个光纤激光器2和3具有在两端2b,2c,3b和3c的反射激光束的谐振器4和5,并且具有结构 其中芯部2a和3a的一部分直径减小,芯部2a和3a的直径减小的部分彼此靠近,通过激光束在谐振器4和5内部进行注射同步 从芯部2a和3a泄漏,并且损耗被施加到光纤激光器2和3中的任一个的端口。 根据该光纤激光器单元1,通过使芯2a和3a彼此靠近并且通过使用从芯2a和3a泄漏的激光束进行注射同步的简单结构,将相干添加 实现了极高的附加效率的激光器。
    • 9. 发明申请
    • MOLDING DIE AND METHOD FOR MANUFACTURING SAME, AND METHOD FOR PROVIDING CONSISTENT GLOSSINESS
    • 成型模具及其制造方法以及提供一致性的方法
    • US20130141792A1
    • 2013-06-06
    • US13816898
    • 2012-02-21
    • Kenichi UedaMitsushi Sogabe
    • Kenichi UedaMitsushi Sogabe
    • B29C33/42G02B1/11G02B5/02
    • B29C33/424B29C37/0053G02B1/11G02B5/0268
    • [Problem to be Solved]Provided are a molding die by which a molded article with a reduced gloss can be molded; and a manufacturing method therefor, and provided are a method for matching the gloss levels of molded articles, by which the glosses of the surfaces of the molded articles molded with materials such as different synthetic resins can be matched; a molding die; and a manufacturing method therefor.[Solution]In a molding die 10 according to this invention, gloss control granules 20 comprising 50 to 80 parts by weight of a shape retention fixation base material 22, 30 to 80 parts by weight of a diffuse reflecting surface formation core material 24, and 5 to 10 parts by weight of a roughness enhancement material 26 are adhered to a mold plane 12 of a die at spacings; the gloss control granules 20 are each independently added to form gloss control projections 28 on the mold plane 12 of the die so that a surface of a molded product molded on the die forms a surface with small specular reflection or diffuse reflection; and the gloss control projections 28 having fine, uneven surfaces with recesses and projections are formed at a coating rate of 40 to 80% on the mold plane.
    • [待解决的问题]提供一种成型模具,通过该模具可以模制具有降低的光泽度的模制品; 并且提供了一种用于匹配模制品的光泽度的方法,通过该方法可以使与诸如不同合成树脂的材料成型的模制品的表面的光泽度相匹配; 成型模具 及其制造方法。 [方案]在根据本发明的成型模具10中,包含50至80重量份的形状保持固定基材22,30至80重量份的漫反射表面形成芯材24的光泽度控制颗粒20和 5〜10重量份粗糙度增强材料26以间隔的方式粘附在模具的模具平面12上; 光泽控制颗粒20各自独立地加入,以在模具的模具平面12上形成光泽度控制凸起28,使得模制在模具上的模制产品的表面形成具有小镜面反射或漫反射的表面; 并且在模具平面上以40〜80%的涂布率形成具有凹凸的精细不均匀表面的光泽控制突起28。