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48 条记录 (耗时 0.025 秒)

    Focus servo device of a system for reading out recorded information
    1.
    发明授权
    Focus servo device of a system for reading out recorded information 失效
    用于读出记录信息的系统的聚焦伺服装置

    公开(公告)号：US4637005A

    公开(公告)日：1987-01-13

    申请号：US516372

    申请日：1983-07-22

    申请人： Ryuichi Naito ,  Minoru Kosaka ,  Katsumi Kawamura

    发明人： Ryuichi Naito ,  Minoru Kosaka ,  Katsumi Kawamura

    IPC分类号： G02B7/28 ,  G05D3/00 ,  G05D3/12 ,  G11B7/08 ,  G11B7/09

    CPC分类号： G11B7/0941 ,  G11B7/0908

    摘要： In a system for optically reading out information recorded on a recording medium, the focus servo device includes an object lens supported by a resilient support member and a focus servo loop. The focus loop includes a driving current generating means for generating a driving current of a cylindrical coil of a focus actuator connected to the object lens in accordance with an output signal of a pickup means which includes the object lens. The improvement is that the dc loop gain of the focus servo loop is substantially raised to infinity, so as to reduce the magnitude of the focus error signal which is required to produce the driving current of the cylindrical lens for moving the object lens against the resilient force of the support member. Further, the focus servo device is characterized by a phase retarding circuit for reducing the amount of the phase rotation at the higher frequency range so as to assure the stability of the operation of the focus servo loop.

    摘要翻译： 在用于光学读取记录在记录介质上的信息的系统中，聚焦伺服装置包括由弹性支撑构件和聚焦伺服环路支撑的物镜。 聚焦环包括驱动电流产生装置，用于根据包括物镜的拾取装置的输出信号产生连接到物镜的聚焦致动器的圆柱形线圈的驱动电流。 改进之处在于，聚焦伺服环路的直流回路增益基本上升至无穷大，以便减小产生用于使物镜抵靠弹性的柱面透镜的驱动电流所需的聚焦误差信号的大小 支撑构件的力。 此外，聚焦伺服装置的特征在于用于减小较高频率范围内的相位旋转量的相位延迟电路，以确保聚焦伺服环路的操作的稳定性。

    Packing material for liquid chromatography
    4.
    发明授权
    Packing material for liquid chromatography 失效
    液相色谱填充材料

    公开(公告)号：US5651884A

    公开(公告)日：1997-07-29

    申请号：US469731

    申请日：1995-06-06

    申请人： Takeshi Ichitsuka ,  Tetsuro Ogawa ,  Katsumi Kawamura ,  Masaya Sumita ,  Akihiko Yokoo

    发明人： Takeshi Ichitsuka ,  Tetsuro Ogawa ,  Katsumi Kawamura ,  Masaya Sumita ,  Akihiko Yokoo

    IPC分类号： B01D15/08 ,  B01J20/04 ,  B01J20/32

    CPC分类号： B01J20/28059 ,  B01D15/3847 ,  B01J20/048 ,  B01J20/28004 ,  B01J20/28019 ,  B01J20/28078 ,  B01J20/282 ,  B01J20/286 ,  B01J20/3021 ,  B01J20/3028 ,  B01J20/3064 ,  B01J20/3078 ,  B01J20/3092 ,  B01J20/3204 ,  B01J20/3208 ,  B01J20/3234 ,  B01J2220/54 ,  B01J2220/58

    摘要： Column packing materials useful in applications such as liquid chromatography, as well as a process for producing such a packing material are described. A first aspect of the invention concerns a column packing material composed of a spherical substrate having a coating of a calcium phosphate based compound on the surface thereof.A second aspect of the invention concerns a packing material comprising porous calcium phosphate based granules having open pores with an average pore size of from 0.01 to 20 .mu.m, said granules being composed of crystalline particles with an average size of from 0.1 to 10 .mu.m.A third aspect of the invention concerns a spherical packing material for liquid chromatography comprising spherical particles of at least one material selected from the group consisting of Ca.sub.10 (PO.sub.4).sub.6 (OH).sub.2, Ca.sub.3 (PO.sub.4).sub.2, Ca.sub.2 P.sub.2 O.sub.7, Ca(PO.sub.3).sub.2, Ca.sub.10 (PO.sub.4).sub.6 F.sub.2 and Ca.sub.10 (PO.sub.4).sub.6 Cl.sub.2, said packing material having a dense stricture with a porosity of no more than 5%.A fourth aspect of the invention concerns a packing for liquid chromatography comprising particles having at least on the surface thereof a fluoroapatite represented by formula (I):Ca.sub.10 (PO.sub.4).sub.6 (OH).sub.2-2x F.sub.2x (I)wherein x is a number of from about 0.1 to 1.

    摘要翻译： 描述了可用于诸如液相色谱法的应用的柱状填料，以及用于生产这种包装材料的方法。 本发明的第一方面涉及一种柱状填充材料，其由在其表面上具有磷酸钙基化合物的涂层的球形基材构成。 本发明的第二方面涉及一种包含多孔磷酸钙基颗粒的包装材料，其具有平均孔径为0.01至20μm的开放孔，所述颗粒由平均尺寸为0.1-10μm的结晶颗粒组成 。 本发明的第三方面涉及一种用于液相色谱的球形包装材料，其包括选自Ca10（PO4）6（OH）2，Ca3（PO4）2，Ca2P2O7，Ca（PO3） 2，Ca10（PO4）6F2和Ca10（PO4）6Cl2，所述包装材料具有密度不大于5％的密度。 本发明的第四方面涉及一种用于液相色谱的填料，其包括至少在其表面上具有由式（I）表示的氟磷灰石的颗粒：Ca10（PO4）6（OH）2-2xF2x（I），其中x是 约0.1至1。

    Packing material for liquid chromatography
    6.
    再颁专利
    Packing material for liquid chromatography 失效
    液相色谱填充材料

    公开(公告)号：USRE35340E

    公开(公告)日：1996-10-01

    申请号：US105850

    申请日：1993-08-13

    申请人： Takeshi Ichitsuka ,  Tetsuro Ogawa ,  Katsumi Kawamura ,  Masaya Sumita ,  Akihiko Yokoo

    发明人： Takeshi Ichitsuka ,  Tetsuro Ogawa ,  Katsumi Kawamura ,  Masaya Sumita ,  Akihiko Yokoo

    IPC分类号： B01J20/04 ,  B01D15/08

    CPC分类号： G01N30/482 ,  B01J20/048 ,  B01J20/103 ,  B01J20/28004 ,  B01J20/28019 ,  B01J20/28054 ,  B01J20/28078 ,  B01J20/28095 ,  B01J20/282 ,  B01J20/283 ,  B01J20/3021 ,  B01J20/3078 ,  B01J20/3204 ,  B01J20/3236 ,  B01J2220/54

    摘要： Column packing materials useful in applications such as liquid chromatography, as well as a process for producing such a packing material are described. A first aspect of the invention concerns a column packing material composed of a spherical substrate having a coating of a calcium phosphate based compound on the surface thereof.A second aspect of the invention concerns a packing material comprising porous calcium phosphate based granules having open pores with an average pore size of from 0.01 to 20 .mu.m, said granules being composed of crystalline particles with an average size of from 0.1 to 10 .mu.m.A third aspect of the invention concerns a spherical packing material for liquid chromatography comprising spherical particles of at least one material selected from the group consisting of Ca.sub.10 (PO.sub.4).sub.6 (OH).sub.2, Ca.sub.3 (PO.sub.4).sub.2, Ca.sub.2 P.sub.2 O.sub.7, Ca(PO.sub.3).sub.2, Ca.sub.10 (PO.sub.4).sub.6 F.sub.2 and Ca.sub.10 (PO.sub.4).sub.6 Cl.sub.2, said packing material having a dense structure with a porosity of no more than 5%.A fourth aspect of the invention concerns a packing for liquid chromatography comprising particles having at least on the surface thereof a fluoroapatite represented by formula (I):Ca.sub.10 (PO.sub.4).sub.6 (OH).sub.2-2x F.sub.2x (I)wherein x is a number of from about 0.1 to 1.

    摘要翻译： 描述了可用于诸如液相色谱法的应用的柱状填料，以及用于生产这种包装材料的方法。 本发明的第一方面涉及一种柱状填充材料，其由在其表面上具有磷酸钙基化合物的涂层的球形基材构成。 本发明的第二方面涉及一种包含多孔磷酸钙基颗粒的包装材料，其具有平均孔径为0.01至20μm的开放孔，所述颗粒由平均尺寸为0.1-10μm的结晶颗粒组成 。 本发明的第三方面涉及一种用于液相色谱的球形包装材料，其包括选自Ca10（PO4）6（OH）2，Ca3（PO4）2，Ca2P2O7，Ca（PO3） 2，Ca10（PO4）6F2和Ca10（PO4）6Cl2，所述包装材料具有孔隙率不超过5％的致密结构。 本发明的第四方面涉及一种用于液相色谱的填料，其包括至少在其表面上具有由式（I）表示的氟磷灰石的颗粒：Ca10（PO4）6（OH）2-2xF2x（I），其中x是 约0.1至1。

    Virtual space information processor
    8.
    发明授权
    Virtual space information processor 失效
    虚拟空间信息处理器

    公开(公告)号：US06404430B1

    公开(公告)日：2002-06-11

    申请号：US09171361

    申请日：1998-10-16

    申请人： Katsumi Kawamura ,  Kengo Nakajima

    发明人： Katsumi Kawamura ,  Kengo Nakajima

    IPC分类号： G06T1500

    CPC分类号： G06F9/546 ,  G06F12/0223

    摘要： A virtual space information processor provides data relating to a virtual space to a plurality of client terminals on a real-time basis. All modules for processing all of the data defining the virtual space, and requests from the client terminals are pre-loaded on a memory. The modules include at least a request-storing module which stores more than one request from the client terminals and a space definition data-updating module which updates, according to the requests from the client terminals, the data defining the virtual space. The space definition data-updating module does not start processing of requests from other client terminals until the processing of the request from one of the client terminals is completed. Besides, the virtual space information processor includes a request processing control module which selects an appropriate module for processing a request stored in the request-storing module and instructs the selected module to process the request. Moreover, processing instructions from the request processing control module to individual modules are transmitted via a connection interface. Furthermore, modules of the same type are not double-loaded on the memory.

    摘要翻译： 虚拟空间信息处理器实时地向多个客户终端提供与虚拟空间有关的数据。 用于处理定义虚拟空间的所有数据的所有模块以及来自客户终端的请求被预加载在存储器上。 这些模块至少包括存储来自客户终端的多个请求的请求存储模块和根据来自客户终端的请求更新定义虚拟空间的数据的空间定义数据更新模块。 空间定义数据更新模块在来自其中一个客户终端的请求的处理完成之前，不开始对来自其他客户终端的请求的处理。 此外，虚拟空间信息处理器包括请求处理控制模块，该请求处理控制模块选择用于处理存储在请求存储模块中的请求的适当模块，并指示所选模块处理该请求。 此外，通过连接接口发送从请求处理控制模块到各个模块的处理指令。 此外，相同类型的模块不会在存储器上双重加载。

    Recording sheet cleaning apparatus for thermal printer
    9.
    发明授权
    Recording sheet cleaning apparatus for thermal printer 失效
    热敏打印机的记录纸清洁装置

    公开(公告)号：US5929888A

    公开(公告)日：1999-07-27

    申请号：US824730

    申请日：1997-03-26

    申请人： Katsumi Kawamura

    发明人： Katsumi Kawamura

    IPC分类号： B41J2/32 ,  B41J11/00 ,  B41J29/00 ,  B41J29/17 ,  B41F35/00

    CPC分类号： B41J11/0015 ,  B41J29/17

    摘要： A recording sheet cleaning apparatus is mounted on a printer having a thermal head and arranged to feed a recording sheet along a sheet feeding path. The recording sheet cleaning apparatus includes a wiping member located upstream of the thermal head along the sheet feeding path. The wiping member is located on the same side as the thermal head with respect to the sheet feeding path. The recording sheet introduced into the printer contacts with the wiping member, so that the printing surface of the recording sheet (the surface facing the thermal head) is wiped by the wiping member before printing.

    摘要翻译： 记录片材清洁装置安装在具有热敏头的打印机上，并布置成沿着片材馈送路径馈送记录片材。 记录纸清洁装置包括沿着纸张馈送路径位于热敏头的上游的擦拭构件。 擦拭构件相对于片材进给路径位于与热敏头相同的一侧。 引入打印机的记录纸与擦拭部件接触，使得记录纸的打印面（面对热敏头的表面）在打印之前被擦拭部件擦拭。

    Thermal printer and thermal printer head driving system
    10.
    发明授权
    Thermal printer and thermal printer head driving system 失效
    热敏打印机和热敏打印头驱动系统

    公开(公告)号：US5717837A

    公开(公告)日：1998-02-10

    申请号：US473918

    申请日：1995-06-07

    申请人： Tamotsu Asai ,  Minoru Suzuki ,  Kiyoshi Negishi ,  Katsumi Kawamura ,  Mikio Horie ,  Hiroshi Orita ,  Katsuyoshi Suzuki

    发明人： Tamotsu Asai ,  Minoru Suzuki ,  Kiyoshi Negishi ,  Katsumi Kawamura ,  Mikio Horie ,  Hiroshi Orita ,  Katsuyoshi Suzuki

    IPC分类号： B41J2/355 ,  G06K15/02 ,  G06F15/00

    CPC分类号： B41J2/355 ,  G06K15/028

    摘要： A thermal printer for forming an image on a sheet, with the image having a plurality of line image data. The thermal printer includes a thermal head having a plurality of linearly arranged thermal elements for forming the image. The total number of the thermal elements to be driven is determined. The thermal elements are driven for a predetermined time period in accordance with the line image data if the number of thermal elements to be driven is not greater than a predetermined value. If the total number of the thermal elements to be driven is greater than the predetermined value, then the predetermined time period is divided into a number of fractional time periods and the thermal elements are intermittently driven for each of the fractional time periods. The predetermined value is determined to avoid sticking between the thermal head and a thermosensitive sheet due to excess heat.

    摘要翻译： 一种用于在片材上形成图像的热敏打印机，其中图像具有多个线图像数据。 热敏打印机包括具有用于形成图像的多个线性排列的热元件的热​​敏头。 确定要驱动的热元件的总数。 如果要驱动的热元件的数量不大于预定值，则热元件根据线图像数据被驱动预定时间段。 如果要驱动的热元件的总数大于预定值，则将预定时间段分成多个分数时间段，并且对于每个分数时间段间歇地驱动热元件。 确定预定值以避免由于过热而在热敏头和热敏片之间粘附。