摘要:
A substrate frame includes an insulative board (10a) having a pair of ear portions (13) extending along its longitudinal edges; a plurality of wiring substrate regions (11) arranged on the insulative board (10a) between the ear portions (13) at predetermined intervals; and a plurality of grooves (18) provided around said wiring substrate regions (11) from which wiring patterns are removed.
摘要:
A charging apparatus includes charging means for being supplied with an AC voltage and for electrically charging a member to be charged; current measuring means for measuring a current flowing between the charging means and the member to be charged when the AC voltage is supplied the charging means; and particular current extraction means for extracting from the current a particular current having a particular frequency.
摘要:
A method for testing a TMR element includes a step of measuring a plurality of resistances of the TMR element by applying a plurality of voltages with different voltage values each other to the TMR element, respectively, a step of calculating a ratio of change in resistance from the measured plurality of resistances of the TMR element, and a step of evaluating the TMR element using the calculated ratio of change in resistance.
摘要:
A semiconductor package includes a base plate; a sidewall provided at a periphery of the base plate; a sensor chip retained in a chip accommodation space defined by the sidewall; and a chip installation hole provided in the base plate for installing the sensor chip. The sensor chip is disposed in the chip installation hole provided in the base plate of the case. Accordingly, it is possible to reduce a thickness of the semiconductor package without changing a thickness of the sensor chip. The base plate has a relatively large thickness except for the chip installation hole. Accordingly, even when the semiconductor package is made thinner, rigidity of the base plate is maintained, thereby minimizing a strain in the base plate.
摘要:
A method for testing a TMR element includes a step of measuring a plurality of resistances of the TMR element by feeding a plurality of sense currents with different current values each other through the TMR element, a step of calculating a ratio of change in resistance from the measured plurality of resistances of the TMR element, and a step of evaluating the TMR element using the calculated ratio of change in resistance.
摘要:
A charging apparatus includes charging means for being supplied with an AC voltage and for electrically charging a member to be charged; current measuring means for measuring a current flowing between the charging means and the member to be charged when the AC voltage Is supplied the charging means; and particular current extraction means for extracting from the current a particular current in having a particular frequency.
摘要:
An image forming apparatus includes an image bearing member; a charging roller cooperable with the image bearing member to form a nip therebetween, for charging the charging roller is rotatable for counterdirectional peripheral movement relative to the image bearing member at the nip; a developing unit for developing with a developer an electrostatic image formed on the image bearing member; wherein the potential of a potential changing portion of the image bearing member changes with respect to the peripheral moving direction of the image bearing member; and wherein at tA (sec) after arrival at an upstream end of the nip, of the potential changing portion, the developing unit is supplied with a voltage for collecting particles from the image bearing member to the developing unit, where tA (sec) is a sum of a time duration required for a surface of the charging roller to move from the upstream end of the nip to a downstream end of the nip and a time duration required for a surface of the image bearing member to move from the downstream end of the nip to a developing zone of the developing unit.
摘要:
To provide a high-chromatic flaky pigment with good colorability, and to provide a method for producing the flaky pigment in a simple and inexpensive plant. A high-chromatic flaky pigment of which the entire surface of the flaky substrate coated with a metal oxide having an interference color is further coated with a semi-transparent thin metal film to enhance the interference color of the pigment.
摘要:
A charging device for electrically charging a member to be charged includes charging particles including electroconductive particles having particles diameters in the range of 10 nm-10 &mgr;m; and a charging particles carrying member, which has a nip with the member to be charged forming a nip with said member to be charged, for carrying the charging particle to the nip; wherein said charging particles have resistances in the range of 10−1-1012 &OHgr;cm; wherein (an amount, per unit area, of said charging particles carried by said charging particles carrying member)/(an average roughness Ra of a surface of said charging particles carrying member) is in the range of 0.005-1 mg/cm2/&mgr;m.
摘要翻译:用于对要充电的部件进行充电的充电装置包括具有粒径在10nm-10μm范围内的导电颗粒的充电颗粒; 以及充电颗粒承载构件,其具有与要充电的构件的辊隙,与待充电的构件形成辊隙,用于将填充颗粒带到辊隙; 其中所述带电粒子具有在10-1-1012欧米汞米范围内的电阻; 其中(所述带电粒子承载部件承载的所述带电粒子的每单位面积的量)/(所述带电粒子承载部件的表面的平均粗糙度Ra)在0.005〜1mg / cm 2 / m 2的范围内 。
摘要:
A heat exchanger for executing heat exchange between heat exchange between heat exchange bodies (6) on a heat radiation side and heat exchange bodies (3) on a heat absorption side, having low thermal resistance and high performance of heat conduction includes heat exchange bodies 6 on a heat radiation side and heat exchange bodies 3 on a heat absorption side, each being disposed hierarchically, thermoelectric conversion element modules 2 interposed between the heat exchange body 6 on the heat radiation side and the heat exchange body 3 on the heat absorption side through an insulating coat 16, and having a plurality of thermoelectric conversion elements 12, 13, wherein the insulating coat 16 is formed integrally on a surface of at least one of the heat exchange body 6 on the heat radiation side and the heat exchange body 3 on the heat absorption side, and a metal coat 17 keeping electric contact with a surface of the thermoelectric conversion elements 12, 13 on either the heat radiation side or the heat absorption side is integrally formed on the insulating coat 16.