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    • 1. 发明授权
    • Optical pickup and disc player
    • 光学拾音器和光盘播放器
    • US06097690A
    • 2000-08-01
    • US983617
    • 1998-01-09
    • Tsutomu MochizukiKatsuhiko Yamada
    • Tsutomu MochizukiKatsuhiko Yamada
    • G11B7/00G11B7/08G11B7/085G11B7/09G11B7/095G11B7/12G11B7/125G11B7/135
    • G11B7/1372G11B7/08G11B7/08582G11B7/0925G11B7/12G11B7/127G11B7/1374G11B2007/0006G11B7/0956
    • A disc player provided with an optical pick-up including plural object lens so that write and read operations of information signals can be carried out with respect to plural kinds of discs in which thicknesses of transparent bases are different from each other. In order that tracking error signal can be satisfactorily detected even in the case where either one of object lenses is used, a biaxial actuator 3 for supporting an object lens 5 moved on a line which is off the central axis C of a spindle motor 17 is disposed in a manner inclined by a predetermined angle .theta. with respect to the axis of a guide shaft 18, and movement operation direction of the object lens 5 is caused to be close to the direction perpendicular to recording tracks of the optical disc caused to undergo rotational operation by the spindle motor 17.
    • PCT No.PCT / JP97 / 01573 Sec。 371日期1998年1月9日 102(e)1998年1月9日PCT PCT 1997年5月9日PCT公布。 公开号WO97 / 42632 PCT 日期:1997年11月13日具有包括多个物镜的光学拾取器的光盘播放器,可以相对于透明基底的厚度彼此不同的多种盘来执行信息信号的写入和读取操作 。 为了即使在使用任一个物镜的情况下也能令人满意地检测到跟踪误差信号,用于支撑在主轴电动机17的中心轴线C的线上移动的物镜5的双轴致动器3是 以相对于引导轴18的轴线倾斜了预定角度θ的方式设置,并且使物镜5的移动操作方向接近垂直于光盘的记录轨道的方向,以使其经受旋转 由主轴电动机17进行操作。
    • 4. 发明授权
    • Autoconfiguration system for wireless sensor network and its method, and gateway apparatus for wireless sensor network
    • 无线传感器网络自动配置系统及其方法,无线传感器网络网关设备
    • US08942212B2
    • 2015-01-27
    • US12622051
    • 2009-11-19
    • Katsuhiko Yamada
    • Katsuhiko Yamada
    • H04W4/00H04W48/14H04W40/24H04W80/04
    • H04W48/14H04W40/24H04W80/04
    • The present invention enables connection between a wireless sensor node and a service server while reducing load on the wireless sensor node.The wireless sensor node transmits a router solicitation message to a gateway apparatus; the gateway apparatus analyzes the message to extract the discrete information of a device or service, searches for a service server based on such information and acquires the configuration information necessary for execution of a service application of the wireless sensor node; the gateway apparatus multicasts the received router solicitation message into a link; a router within the link receives the router solicitation message, and multicast a router advertisement message which contains the prefix information of an address, etc. into a link; the gateway apparatus sets the acquired configuration information in the router advertisement message and transfers the resultant message to the wireless sensor node; and the wireless sensor node analyzes the message.
    • 本发明能够在减少无线传感器节点上的负载的同时,实现无线传感器节点与服务服务器之间的连接。 无线传感器节点向网关设备发送路由器请求消息; 网关设备分析消息以提取设备或服务的离散信息,基于这样的信息搜索服务服务器,并获取执行无线传感器节点的服务应用所需的配置信息; 网关设备将接收的路由器请求消息多播到链路中; 链路内的路由器接收路由器请求消息,并将包含地址等的前缀信息的路由器通告消息组播到链路中; 网关装置将所获取的配置信息设置在路由器通告消息中,并将所得到的消息传送到无线传感器节点; 无线传感器节点分析消息。
    • 8. 发明授权
    • Continuous casting process and continuous casting/rolling process for
steel
    • 钢的连续铸造工艺和连续铸造/轧制过程
    • US5769152A
    • 1998-06-23
    • US348927
    • 1994-11-25
    • Katsuhiko Yamada
    • Katsuhiko Yamada
    • B22D11/128B21B1/08B21B1/18B21B1/46B22D11/10B22D11/115B22D11/12B22D11/14B22D11/20
    • B21B1/46B22D11/1206B22D11/142B21B1/08B21B1/0815B21B1/088B21B1/18
    • In a continuous casting process for steel, a molten core inside a strand is stalled at a specific point Q in a pass line of the strand to form a cored portion including no molten steel in the strand downstream of the specific point Q, and the cored portion is rolled by a pair of rolls under pressing into a solid strand in the latter half of a strand drawing stroke. The resulting solid strand comprises a skin formed of a chill crystal and the interior formed of a columnar crystal by addition of proper casting temperature. A through continuous casting/rolling process in which the above improved continuous casting process is combined with a subsequent hot rolling process is also disclosed. A drastic increase in the casting efficiency, an improvement in quality, and an equipment capable of freely adjusting a casting thickness can be resulted so that direct coupling between continuous casting and rolling is achieved and near-net-shaping of various steel materials is promoted.
    • 在钢的连续铸造工艺中,股线内的熔融芯在线的通过线中的特定点Q处停止,以形成在特定点Q下游的线中不包含钢水的芯部, 在拉丝笔的后半部分中,通过一对辊压制成实心线。 得到的固体链包含由冷却晶体形成的皮肤,并且通过添加适当的浇铸温度由柱状晶体形成的内部。 还公开了将上述改进的连续铸造工艺与随后的热轧工艺组合的贯穿连续铸造/轧制方法。 可以实现铸造效率的大幅提高,质量的提高,能够自由调整铸造厚度的设备,从而实现连续铸造和轧制之间的直接耦合,促进各种钢材的近净成形。