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    Methods of identifying and preparing a ceramic material exhibiting an electric field induced strain
    4.
    发明授权
    Methods of identifying and preparing a ceramic material exhibiting an electric field induced strain 有权

    公开(公告)号：US11124456B2

    公开(公告)日：2021-09-21

    申请号：US16483604

    申请日：2018-02-02

    申请人： David Cann ,  Brady Gibbons ,  Peter Mardilovich

    发明人： David Cann ,  Brady Gibbons ,  Peter Mardilovich

    IPC分类号： C04B35/46 ,  C04B35/468 ,  C04B35/475 ,  H01L41/187

    摘要： The present invention relates to a method for identifying a solid solution ceramic material of a plurality of perovskite compounds which exhibits an electric field induced strain derived from a reversible phase transition, as well as a method for making such ceramic materials and ceramic materials obtainable therefrom. In particular, the present invention is directed to a method of identifying a solid solution ceramic material of at least three perovskite compounds which exhibits an electric field induced strain derived from a reversible phase transition; said method comprising the steps of: i) determining a molar ratio of at least one tetragonal perovskite compound to at least one non-tetragonal perovskite compound which, when combined to form a solid solution, provides a ceramic material comprising a major portion of a tetragonal phase having an axial ratio c/a of greater than 1.005 to 1.04; and ii) determining a molar ratio of at least one additional non-tetragonal perovskite compound to the combination of perovskite compounds from step i) at the determined molar ratio which, when combined to form a solid solution, provides a ceramic material comprising a major portion of a pseudo-cubic phase having an axial ratio c/a of from 0.995 to 1.005 and/or a rhombohedral angle of 90±0.5 degrees.

    Ceramic material comprising a pseudo-cubic phase, a process for preparing and uses of the same
    5.
    发明授权
    Ceramic material comprising a pseudo-cubic phase, a process for preparing and uses of the same 有权

    公开(公告)号：US11078122B2

    公开(公告)日：2021-08-03

    申请号：US16483581

    申请日：2018-02-02

    申请人： David Cann ,  Brady Gibbons ,  Peter Mardilovich

    发明人： David Cann ,  Brady Gibbons ,  Peter Mardilovich

    IPC分类号： C04B35/475 ,  C04B35/49 ,  H01L41/187 ,  C04B35/626 ,  C04B35/634

    摘要： The present invention relates to a bismuth-based solid solution ceramic material, as well as a process for preparing the ceramic material and uses thereof, particularly in an actuator component employed, for example, in a droplet deposition apparatus. In particular, the present invention relates to a ceramic material having a general chemical formula (I): (I): x(Bi0.5Na0.5)TiO3-y(Bi0.5K0.5)TiO3-z1SrHfO3-z2SrZrO3, wherein x+y+Z1+Z2=1; y, (z1+z2)≠0; x≥0. In embodiments, the present invention also relates to a ceramic material having a general chemical formula (II): x(Bi0.5Na0.5)TiO3-y(Bi0.5K0.5)TiO3-y(Bi0.5K0.5)TiO3-ZiSrHfO3-z2SrZrO3, wherein x+y+z−i+z2=1; x, y, fa+z2)≠0; as well as a ceramic material of general formula (III): y(Bi0.5K0.5)TiO3-z1SrHfO3-z2SrZrO3, wherein y+z1,+z2=1; y, (z1+z2)≠0.

    Network Security Device
    6.
    发明申请
    Network Security Device 有权
    网络安全设备

    公开(公告)号：US20070261112A1

    公开(公告)日：2007-11-08

    申请号：US11745068

    申请日：2007-05-07

    申请人： John Todd ,  Sai Sivanesan ,  David Cann

    发明人： John Todd ,  Sai Sivanesan ,  David Cann

    IPC分类号： H04L9/32

    CPC分类号： H04L63/145 ,  G06F21/577 ,  H04L63/0272 ,  H04L63/1483 ,  H04L63/1491

    摘要： A network security device which acts as an “airlock” for traffic between a communications device and a network. Data is screened using rules based analysis by the security device to counter various threats, including viruses, phishing, attempts to “hijack” communications, communications with known malicious addresses or unknown addresses, and transmission of sensitive information. Data packets can be reassembled into files for screening, and decoded or expanded as necessary, but is never executed. The data path for the data being screened is kept separate from the operations of the network security device itself, so that the device is incorruptible—its programming cannot be compromised from outside sources. Updates for rules and entry of sensitive data for screening, etc., must be done through a physical interface, not via the normal data communications channel. The device is invisible—it cannot be “seen” by the network, and thus cannot be attacked.

    摘要翻译： 充当通信设备和网络之间流量的“气闸”的网络安全设备。 使用安全设备的基于规则的分析来筛选数据，以对付各种威胁，包括病毒，网络钓鱼，尝试“劫持”通信，与已知恶意地址或未知地址的通信以及敏感信息的传输。 数据包可以重新组合成文件进行筛选，并根据需要进行解码或扩展，但从不执行。 正在屏蔽的数据的数据路径与网络安全设备本身的操作保持分离，使得设备不可破坏，其编程不能从外部来源泄露。 必须通过物理接口，而不是通过正常的数据通信通道来进行更新规则和敏感数据的筛选等。 该设备是不可见的 - 它不能被网络“看到”，因此不会被攻击。

    Toothbrush with elastomer filled flexible head
    7.
    发明申请
    Toothbrush with elastomer filled flexible head 有权
    牙刷用弹性体填充柔性头

    公开(公告)号：US20060130257A1

    公开(公告)日：2006-06-22

    申请号：US11317842

    申请日：2005-12-23

    申请人： David Cann

    发明人： David Cann

    IPC分类号： A46B9/04

    CPC分类号： A46B5/02 ,  A46B5/002 ,  A46B5/0025 ,  A46B7/06 ,  A46B9/025 ,  A46B9/04 ,  A46B2200/1066 ,  B29L2031/425

    摘要： The invention relates to a toothbrush comprising: i) an elongated handle having distal and proximal ends and one or more elastomeric handle regions therein; and ii) a resiliently flexible head attached to the proximal end of the handle, the head including a pair of opposing faces, one of the pair being a bristle-bearing face with bristles attached to and extending from the face, wherein at least one of the pair has one or more elastomer-containing, transverse grooves therein; and iii) one or more elastomer supply channels extending between the elastomeric handle regions and the transverse grooves. Whereby at least one of the elastomeric handle regions and the traverse grooves can be filled with elastomer from a single injection point. The elastomeric regions in the head can be used to make the head flexible and the whole brush can conveniently be made on conventional machines.

    摘要翻译： 本发明涉及一种牙刷，包括：i）细长手柄，其中具有远端和近端以及其中的一个或多个弹性手柄区域; 以及ii）附接到所述手柄的近端的弹性柔性头部，所述头部包括一对相对面，所述一对中的一个是具有附着到所述面部并且从所述面延伸的刷毛的刷毛支承面，其中， 该对在其中具有一个或多个含弹性体的横向槽; 以及iii）在弹性手柄区域和横向凹槽之间延伸的一个或多个弹性体供应通道。 由此弹性手柄区域和横向槽中的至少一个可以从单个注射点填充弹性体。 头部中的弹性体区域可用于使头部柔性，并且整个刷子可以方便地在常规机器上制造。

    Method and apparatus for regulating data flow between a communications device and a network
    8.
    发明授权
    Method and apparatus for regulating data flow between a communications device and a network 有权
    用于调节通信设备和网络之间的数据流的方法和装置

    公开(公告)号：US07890612B2

    公开(公告)日：2011-02-15

    申请号：US11745068

    申请日：2007-05-07

    申请人： John Todd ,  Sai Sivanesan ,  David Cann

    发明人： John Todd ,  Sai Sivanesan ,  David Cann

    IPC分类号： G06F13/00

    CPC分类号： H04L63/145 ,  G06F21/577 ,  H04L63/0272 ,  H04L63/1483 ,  H04L63/1491

    摘要： A network security device which acts as an “airlock” for traffic between a communications device and a network. Data is screened using rules based analysis by the security device to counter various threats, including viruses, phishing, attempts to “hijack” communications, communications with known malicious addresses or unknown addresses, and transmission of sensitive information. Data packets can be reassembled into files for screening, and decoded or expanded as necessary, but is never executed. The data path for the data being screened is kept separate from the operations of the network security device itself, so that the device is incorruptible—its programming cannot be compromised from outside sources. Updates for rules and entry of sensitive data for screening, etc., must be done through a physical interface, not via the normal data communications channel. The device is invisible—it cannot be “seen” by the network, and thus cannot be attacked.

    摘要翻译： 充当通信设备和网络之间流量的“气闸”的网络安全设备。 使用安全设备的基于规则的分析来筛选数据，以对付各种威胁，包括病毒，网络钓鱼，尝试“劫持”通信，与已知恶意地址或未知地址的通信以及敏感信息的传输。 数据包可以重新组合成文件进行筛选，并根据需要进行解码或扩展，但从不执行。 正在屏蔽的数据的数据路径与网络安全设备本身的操作保持分离，使得设备不可破坏，其编程不能从外部来源泄露。 必须通过物理接口，而不是通过正常的数据通信通道来进行更新规则和敏感数据的筛选等。 该设备是不可见的 - 它不能被网络“看到”，因此不会被攻击。

    Fabrication of photonic band gap materials using microtransfer molded templates
    9.
    发明授权
    Fabrication of photonic band gap materials using microtransfer molded templates 失效
    使用微转移模塑模板制造光子带隙材料

    公开(公告)号：US06555406B1

    公开(公告)日：2003-04-29

    申请号：US10081729

    申请日：2002-02-22

    申请人： Wai Leung ,  Kristen Constant ,  Kai-Ming Ho ,  Mihail Sigalas ,  Henry Kang ,  Chang Hwan Kim ,  David Cann ,  Jae Hwang Lee

    发明人： Wai Leung ,  Kristen Constant ,  Kai-Ming Ho ,  Mihail Sigalas ,  Henry Kang ,  Chang Hwan Kim ,  David Cann ,  Jae Hwang Lee

    IPC分类号： H01L2100

    CPC分类号： B82Y20/00 ,  G02B6/1225 ,  G02B6/13

    摘要： A method of manufacturing photonic band gap structures operable in the optical spectrum has been presented. The method comprises the steps of creating a patterned template for an elastomeric mold, fabricating an elastomeric mold from poly-dimethylsiloxane (PDMS) or other suitable polymer, filling the elastomeric mold with a second polymer such as epoxy or other suitable polymer, stamping the second polymer by making contact with a substrate or multilayer structure, removing the elastomeric mold, infiltrating the multilayer structure with ceramic or metal, and heating the multilayer structure to remove the second polymer to form a photonic band gap structure.

    摘要翻译： 已经提出了在光谱中可操作的制造光子带隙结构的方法。 该方法包括以下步骤：创建用于弹性体模具的图案化模板，由聚二甲基硅氧烷（PDMS）或其它合适的聚合物制造弹性体模具，用第二聚合物如环氧树脂或其它合适的聚合物填充弹性体模具， 聚合物通过与基底或多层结构接触，去除弹性体模具，用陶瓷或金属渗透多层结构，并加热多层结构以除去第二聚合物以形成光子带隙结构。