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    • 3. 发明授权
    • Filtering material of apatite and glucan used for surgical masks and
method of making it
    • 用于手术口罩的磷灰石和葡聚糖的过滤材料及其制备方法
    • US5143752A
    • 1992-09-01
    • US828359
    • 1992-01-30
    • Tooru NakajimaSumiaki Tsuru
    • Tooru NakajimaSumiaki Tsuru
    • A41D13/11B01D39/08B01D39/20B01J20/04B01J20/28
    • B01J20/2803A41D13/11B01D39/083B01D39/1607B01D39/2079B01J20/048B01J20/22B01J20/28026B01J20/28028B01J20/28033B01J20/3208B01J20/3236B01D2239/0407B01D2239/0478B01D2239/086B01J2220/4831Y10T442/2508Y10T442/2525
    • A filtering material for effectively adsorbing not only conventional foreign material such as dust, odoring gaseous substance but also very fine foreign material such as virus, bacteria, fungus, pollen or the like is disclosed. The filtering material includes as essential components porous apatite particles, a water soluble glucan and a sheet-shaped raw material in which the porous apatite particles are included with the aid of the water soluble glucan serving as a binder. A method of producing a filtering material of the foregoing kind is practiced by way of a step of preparing an aqueous treatment solution in which porous apatite particles of 0.5 to 40% by weight and a water soluble glucan of 0.5 to 15% by weight are dispersively dissolved, a step of immersing a sheet-shaped raw material in the aqueous treatment solution, and a step of drying the sheet-shaped raw material while the porous apatite particles are included in the sheet-shaped raw material with the aid of the water soluble glucan serving as a binder. Alternatively, a step of spraying the aqueous treatment solution to surfaces of a sheet-shaped raw material may be substituted for the step of immersing a sheet-shaped raw material in the aqueous treatment solution. It is preferable from the viewpoint of practice use that the porous apatite particles make up between 0.5 and 30% of the treatment solution.
    • 公开了一种过滤材料,不仅有效吸附诸如灰尘,气味物质等常规外来物质,而且非常细小的外来物质如病毒,细菌,真菌,花粉等。 过滤材料包括作为主要组分的多孔磷灰石颗粒,水溶性葡聚糖和片状原料,其中通过用作粘合剂的水溶性葡聚糖来包含多孔磷灰石颗粒。 制备上述过滤材料的方法是通过制备水性处理溶液的步骤,其中将0.5至40重量%的多孔磷灰石颗粒和0.5至15重量%的水溶性葡聚糖分散地 溶解,将片状原料浸渍在水性处理液中的工序,使片状原料干燥的工序,同时利用水溶性的方法将多孔磷灰石颗粒包含在片状原料中 葡聚糖作为粘合剂。 或者,将水性处理液喷射到片状原料的表面的步骤可以代替将片状原料浸渍在水处理溶液中的步骤。 从实践的观点出发,优选多孔磷灰石粒子占处理液的0.5〜30%。
    • 6. 发明授权
    • Switching power supply circuit and frequency converter
    • 开关电源电路和变频器
    • US07394668B2
    • 2008-07-01
    • US11599220
    • 2006-11-13
    • Tooru NakajimaMasahiro HiragaTetsuya KimuraSatoshi IboriMasayuki Hirota
    • Tooru NakajimaMasahiro HiragaTetsuya KimuraSatoshi IboriMasayuki Hirota
    • H09M3/335
    • H02M1/36
    • An object of the present invention is to lower the voltage applied to the starting resistor of the starting circuit in a switching power supply circuit to reduce the power loss especially when the receiving voltage is high and thereby provide a small and inexpensive switching power supply circuit.According to the present invention, a switching power supply circuit comprises: a DC voltage section having two or more capacitors connected in series; and a PWM control circuit for receiving DC power supply from the DC voltage section and performing switching control on a primary side of a transformer in order for the switching power supply circuit to output a DC voltage of different voltage specifications; wherein the starting resistor for the PWM control circuit is connected to a connection point of the capacitors.
    • 本发明的目的是降低施加到开关电源电路中的起动电路的启动电阻的电压,从而降低功率损耗,特别是当接收电压高时,从而提供小型廉价的开关电源电路。 根据本发明,开关电源电路包括:串联连接有两个或更多个电容器的直流电压部分; 以及PWM控制电路,用于从直流电压部分接收直流电源,并对变压器的初级侧进行开关控制,以使开关电源电路输出不同电压规格的直流电压; 其中用于PWM控制电路的启动电阻器连接到电容器的连接点。
    • 9. 发明授权
    • Switching power supply circuit and frequency converter
    • 开关电源电路和变频器
    • US07151680B2
    • 2006-12-19
    • US10444762
    • 2003-05-22
    • Tooru NakajimaMasahiro HiragaTetsuya KimuraSatoshi IboriMasayuki Hirota
    • Tooru NakajimaMasahiro HiragaTetsuya KimuraSatoshi IboriMasayuki Hirota
    • H02M3/335
    • H02M1/36
    • An object of the present invention is to lower the voltage applied to the starting resistor of the starting circuit in a switching power supply circuit to reduce the power loss especially when the receiving voltage is high and thereby provide a small and inexpensive switching power supply circuit.According to the present invention, a switching power supply circuit comprises: a DC voltage section having two or more capacitors connected in series; and a PWM control circuit for receiving DC power supply from the DC voltage section and performing switching control on a primary side of a transformer in order for the switching power supply circuit to output a DC voltage of different voltage specifications; wherein the starting resistor for the PWM control circuit is connected to a connection point of the capacitors.
    • 本发明的目的是降低施加到开关电源电路中的起动电路的启动电阻的电压,从而降低功率损耗,特别是当接收电压高时,从而提供小型廉价的开关电源电路。 根据本发明,开关电源电路包括:串联连接有两个或更多个电容器的直流电压部分; 以及PWM控制电路,用于从直流电压部分接收直流电源,并对变压器的初级侧进行开关控制,以使开关电源电路输出不同电压规格的直流电压; 其中用于PWM控制电路的启动电阻器连接到电容器的连接点。