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公开(公告)号：US08638691B2
公开(公告)日：2014-01-28
申请号：US13258016
申请日：2010-03-15
申请人： Masato Tanaka , Itsuki Tanabe , Kuniyoshi Ueda , Li Zheng
发明人： Masato Tanaka , Itsuki Tanabe , Kuniyoshi Ueda , Li Zheng
IPC分类号： H04L12/28
CPC分类号： H04W8/005
摘要： A parent node includes: a signal reception unit receiving a parent node search signal transmitted from a child node; a RSSI measurement unit measuring a RSSI as an index indicating the intensity of wireless link with the child node transmitting the parent node search signal; a response wait time standby processing unit that, after waiting for a response wait time in accordance with the intensity of wireless link, returns a response signal to the child node as a sender of the parent node search signal; and a signal transmission unit. The child node includes: a signal transmission unit transmitting a parent node search signal; a signal reception unit receiving a response signal; and a parent node selection unit that selects a parent node for routine communication on the basis of a wait time from the transmission of a parent node search signal to the reception of a response signal.
摘要翻译： 父节点包括：信号接收单元，接收从子节点发送的父节点搜索信号; RSSI测量单元，测量RSSI作为指示与发送父节点搜索信号的子节点的无线链路的强度的索引; 响应等待时间待机处理单元，其在根据无线链路的强度等待响应等待时间之后，将响应信号作为父节点搜索信号的发送者返回给所述子节点; 和信号传输单元。 子节点包括：发送父节点搜索信号的信号发送单元; 信号接收单元，接收响应信号; 以及父节点选择单元，其基于从父节点搜索信号的发送到响应信号的接收的等待时间来选择用于例行通信的父节点。
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公开(公告)号：US5926595A
公开(公告)日：1999-07-20
申请号：US974650
申请日：1997-11-19
CPC分类号： G02B6/3859 , G02B6/3865
摘要： A novel optical fiber connector part is provided which comprises a ferrule having a capillary hole for holding an optical fiber, the ferrule being formed from a zirconia-alumina composite oxide containing yttria at a content ranging from 2 to 4 mol % in zirconia. In the optical fiber connector part, a sleeve for connecting and holding the ferrule may be formed from zirconia and/or a zirconia-alumina composite oxide. A process for producing the optical fiber connector part is provided wherein the granular zirconia-alumina composed of a particulate zirconia-alumina mixture having an average particle diameter of not more than 1 .mu.m is used as raw material. The granular zirconia-alumina preferably contains alumina at a content ranging from 0.1% to 50% by weight. The process comprises spray-drying a slurry containing a particulate zirconia-alumina mixture having an average particle diameter of not more than 1 .mu.m. The ferrule has a stable spherical face at the tip, and will not deform during long-term connection. The granular zirconia-alumina has excellent sintering characteristics.
摘要翻译： 提供了一种新颖的光纤连接器部件，其包括具有用于保持光纤的毛细孔的套圈，所述套圈由氧化锆中含有2至4摩尔％含量的含氧化钇的氧化锆 - 氧化铝复合氧化物形成。 在光纤连接器部分中，用于连接和保持套圈的套筒可以由氧化锆和/或氧化锆 - 氧化铝复合氧化物形成。 提供了一种用于制造光纤连接器部件的方法，其中使用由平均粒径不大于1μm的颗粒状氧化锆 - 氧化铝混合物构成的粒状氧化锆 - 氧化铝作为原料。 粒状氧化锆 - 氧化铝优选含有0.1〜50重量％的氧化铝。 该方法包括喷雾干燥含有平均粒径不大于1μm的颗粒氧化锆 - 氧化铝混合物的浆料。 套管在尖端处具有稳定的球面，并且在长期连接期间不会变形。 粒状氧化锆 - 氧化铝具有优异的烧结特性。
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公开(公告)号：US4770830A
公开(公告)日：1988-09-13
申请号：US943624
申请日：1986-12-18
IPC分类号： C01B21/068 , C01B33/06
CPC分类号： B82Y30/00 , C01B21/0687 , C01P2004/50 , C01P2004/64 , C01P2006/10
摘要： Disclosed is a process for the preparation of high .alpha.-type silicon nitride powder, wherein a nitrogen-containing silane compound and/or amorphous silicon nitride is crystallized to form crystalline silicon nitride. In this process, crystalline silicon nitride having a particle size not larger than 0.05 .mu.m is incorporated in an amount of at least 0.1% by weight into the nitrogen-containing silane compound and/or amorphous silicon nitride, the mixture is formed into a power or molded body having a powder bulk density of at least 0.1 g/cm.sup.3 as silicon, and the powder or molded body is heated to 1,350.degree. to 1,700.degree. C. while controlling the temperature-elevating rate to at least 15.degree. C./min throughout the temperature range of from 1,200.degree. to 1,350.degree. C. The resulting high .alpha.-type silicon nitride is composed of a fine granular crystal and the does not contain a needle crystal or columnar crystal.
摘要翻译： 公开了一种制备高α型氮化硅粉末的方法，其中含氮硅烷化合物和/或非晶氮化硅结晶以形成结晶氮化硅。 在该方法中，将粒径不大于0.05μm的结晶氮化硅以至少0.1重量％的量掺入含氮硅烷化合物和/或非晶氮化硅中，将该混合物形成为电力 或具有至少0.1g / cm 3的粉末堆积密度的成型体作为硅，并将粉末或模塑体加热至1350℃至1,700℃，同时将升温速率控制在至少15℃/分钟 在1200-11350℃的温度范围内。所得到的高α型氮化硅由细晶粒状晶体构成，不含有针晶或柱状晶体。
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公开(公告)号：US20120020237A1
公开(公告)日：2012-01-26
申请号：US13258016
申请日：2010-03-15
申请人： Masato Tanaka , Itsuki Tanabe , Kuniyoshi Ueda , Li Zheng
发明人： Masato Tanaka , Itsuki Tanabe , Kuniyoshi Ueda , Li Zheng
IPC分类号： H04W24/00
CPC分类号： H04W8/005
摘要： A parent node includes: a signal reception unit receiving a parent node search signal transmitted from a child node; a RSSI measurement unit measuring a RSSI as an index indicating the intensity of wireless link with the child node transmitting the parent node search signal; a response wait time standby processing unit that, after waiting for a response wait time in accordance with the intensity of wireless link, returns a response signal to the child node as a sender of the parent node search signal; and a signal transmission unit. The child node includes: a signal transmission unit transmitting a parent node search signal; a signal reception unit receiving a response signal; and a parent node selection unit that selects a parent node for routine communication on the basis of a wait time from the transmission of a parent node search signal to the reception of a response signal.
摘要翻译： 父节点包括：信号接收单元，接收从子节点发送的父节点搜索信号; RSSI测量单元，测量RSSI作为指示与发送父节点搜索信号的子节点的无线链路的强度的索引; 响应等待时间待机处理单元，其在根据无线链路的强度等待响应等待时间之后，将响应信号作为父节点搜索信号的发送者返回给所述子节点; 和信号传输单元。 子节点包括：发送父节点搜索信号的信号发送单元; 信号接收单元，接收响应信号; 以及父节点选择单元，其基于从父节点搜索信号的发送到响应信号的接收的等待时间来选择用于例行通信的父节点。
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公开(公告)号：US4587225A
公开(公告)日：1986-05-06
申请号：US661968
申请日：1984-10-17
申请人： Koji Tsukuma , Kuniyoshi Ueda , Takaaki Tsukidate
发明人： Koji Tsukuma , Kuniyoshi Ueda , Takaaki Tsukidate
IPC分类号： C04B35/488 , C04B35/645 , C04B35/48
CPC分类号： C04B35/6455 , C04B35/488 , C04B35/4885
摘要： A zirconia type sintered body consisting essentially of 50 to 98% by weight of zirconia (ZrO.sub.2) containing 1.5 to 5 mole % of yttria (Y.sub.2 O.sub.3) and 50 to 2% by weight of alumina (Al.sub.2 O.sub.3), spinal (MgAl.sub.2 O.sub.4) or mullite (3Al.sub.2 O.sub.3.2SiO.sub.2), and having a three-point bending strength of at least 1700 MPa is provided. This sintered body is prepared by a process wherein a powdery composition consisting essentially of 50 to 98% by weight of (a1) a powder of zirconia containing 1.5 to 5 mole % of yttria or (a2) a mixture comprising 1.5 to 5 mole % of a yttria powder and 95 to 98.5 mole % of a zirconia powder and 2 to 50% by weight of (b) a powder of an alumina type oxide selected from alumina, an alumina-magnesia type oxide, an alumina-silica type oxide, a mixture of alumina and magnesia and a mixture of alumina and silica is subjected to a hot isotactic pressing treatment under a pressure of at lesast 50 MPa at temperature of 1300.degree. C. to 1700.degree. C. or a monoazially compression-sintering treatment under a pressure of at least 20 MPa at a temperature of 1400.degree. C. to 1700.degree. C.
摘要翻译： 氧化锆型烧结体，主要由50〜98重量％的含有1.5〜5摩尔％的氧化钇（Y 2 O 3）和50〜2重量％的氧化铝（Al 2 O 3），氧化锆（MgAl 2 O 4）或莫来石 3Al2O3.2SiO2），并具有至少1700MPa的三点弯曲强度。 该烧结体通过以下方法制备：粉末组合物，其主要由50〜98重量％（a1）含有1.5〜5摩尔％氧化钇的氧化锆粉末或（a2）含有1.5〜5摩尔％ 氧化钇粉末和95〜98.5摩尔％的氧化锆粉末和2〜50重量％的（b）氧化铝型氧化物粉末，选自氧化铝，氧化铝 - 氧化镁型氧化物，氧化铝 - 二氧化硅型氧化物， 氧化铝和氧化镁的混合物以及氧化铝和二氧化硅的混合物在1300℃至1700℃的温度下在50MPa的压力下进行热全同立构压制处理，或在压力下进行单相压缩烧结处理 在1400℃至1700℃的温度下为至少20MPa。
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6.发明授权
公开(公告)号：US4774041A
公开(公告)日：1988-09-27
申请号：US704037
申请日：1985-02-21
申请人： Koji Tsukuma , Kuniyoshi Ueda , Takaaki Tsukidate
发明人： Koji Tsukuma , Kuniyoshi Ueda , Takaaki Tsukidate
IPC分类号： C04B35/488 , C04B35/645 , C04B35/48
CPC分类号： C04B35/6455 , C04B35/488 , C04B35/4885
摘要： A zirconia type sintered body consisting essentially of 50 to 98% by weight of zirconia (ZrO.sub.2) containing 1.5 to 5 mole % of yttria (Y.sub.2 O.sub.3) and 50 to 2% by weight of alumina (Al.sub.2 O.sub.3), spinal (MgAl.sub.2 O.sub.4) or mullite (3Al.sub.2 O.sub.3.2SiO.sub.2), and having a three-point bending strength of at least 1700 MPa is provided. This sintered body is prepared by a process wherein a powdery composition consisting essentially of 50 to 98% by weight of (a1) a powder of zirconia containing 1.5 to 5 mole % of yttria or (a2) a mixture comprising 1.5 to 5 mole % of yttria powder and 95 to 98.5 mole % of a zirconia powder and 2 to 50% by weight of (b) a powder of an alumina type oxide selected from alumina, and alumina-magnesia type oxide, an alumina-silica type oxide, a mixture of alumina and magnesia and a mixture of alumina and silica is subjected to a hot isotactic pressing treatment under a pressure of at least 50 MPa at temperature of 1300.degree. C. to 1700.degree. C. or a monoaxially compression-sintering treatment under a pressure of at least 20 MPa at a temperature of 1400.degree. C. to 1700.degree. C.
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