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    • 1. 发明授权
    • Resinous circuit board with pins improved in joining strength
    • 带引脚的树脂电路板提高了接合强度
    • US06376782B1
    • 2002-04-23
    • US09494174
    • 2000-01-31
    • Kazuo KimuraHajime SaikiMitsuo ShiraishiYosuke Kondo
    • Kazuo KimuraHajime SaikiMitsuo ShiraishiYosuke Kondo
    • H05K111
    • H05K3/3426H01L23/49811H01L2924/0002H01L2924/15312H01R4/02H05K3/3463Y02P70/613H01L2924/00
    • In a resinous circuit board having a circuitized substrate having conductive layers therewithin, a plurality of pin pads formed on a rear surface of the substrate, and a plurality of pins, each pin having a tip end portion and a head portion and soldered to the pin pad in such a manner as to contact at the head portion to the pin pad. The head portion of the pin consists of a flange section which is larger in diameter than the tip end portion, and a part-spherical abutment section bulging from the flange section in the direction opposite to the tip end portion and brought into contact with the pin pad. The part-spherical abutment section is made of eutectic silver solder which is lower in melting point than solder such as Sn—Ag solder which is used for soldering the pin to the pin pad. Since the silver solder and soft solder are present between the flange section and the pin pad, they can release the stress applied to the pin, thus making it possible to increase the joining strength considerably. Further, the above structure can dispense with holes which are formed in the circuitized substrate and in which pins are press-fitted and fixed as in the prior art circuit board.
    • 在其中具有导电层的电路化基板的树脂电路板中,形成在基板的后表面上的多个引脚焊盘和多个引脚,每个引脚具有尖端部分和头部,并焊接到引脚 垫以这样的方式在头部与销垫接触。 销的头部由直径大于前端部的凸缘部和与前端部相反方向从凸缘部凸出的部分球形抵接部,与销的接触部 垫。 部分球形邻接部分由共熔银焊料制成,其熔点低于诸如Sn-Ag焊料的焊料,其用于将引脚焊接到引脚焊盘。 由于银焊料和软焊料存在于凸缘部分和销焊盘之间,它们可以释放施加到销的应力,从而可以显着提高接合强度。 此外,如现有技术的电路板那样,上述结构可以省略形成在电路化基板中的孔,并且其中的销被压入和固定。
    • 2. 发明授权
    • Sheet feeding apparatus
    • 送纸装置
    • US08630024B2
    • 2014-01-14
    • US12561968
    • 2009-09-17
    • Mitsuo Shiraishi
    • Mitsuo Shiraishi
    • B65H7/02
    • B65H7/14B65H2511/11B65H2511/12B65H2511/20B65H2511/30B65H2511/512B65H2511/514B65H2513/40B65H2513/511B65H2553/414B65H2553/46B65H2557/33B65H2701/1313B65H2801/06B65H2220/03B65H2220/01
    • A sheet feeding apparatus includes: a sheet loading unit configured to load a plurality of sheets; a sheet feeding unit configured to feed the sheets loaded on the sheet loading unit; a light emitting unit configured to irradiate a sheet loaded on the sheet loading unit; an image sensor disposed at a position opposing the sheet loaded on the sheet loading unit and configured to sense an image reflected with light irradiated by the light emitting unit; and a trailing edge detection unit configured to cause the image sensor to repetitively perform sensing during sheet conveyance by the sheet feeding unit, compare images sensed by the image sensor, and detect a trailing edge of the sheet currently being conveyed from the sheet feeding unit based on a determination of an area where a pattern remains unchanged.
    • 送纸装置包括:纸张装载单元,被配置为装载多个纸张; 送纸单元,被配置为输送装载在纸张装载单元上的纸张; 发光单元,被配置为照射装载在所述纸张装载单元上的纸张; 图像传感器,设置在与装载在所述纸张装载单元上的纸张相对的位置,并且被配置为感测由所述发光单元照射的光反射的图像; 以及后缘检测单元,被配置为使得所述图像传感器在由所述片材馈送单元输送片材期间重复执行感测,比较由所述图像传感器感测的图像,并且基于所述片材馈送单元检测当前正在传送的片材的后缘 在确定图案保持不变的区域。
    • 6. 发明授权
    • Squelch circuit for volume control of a radio transmitter and receiver
    • 无线电发射机和接收机的音量控制静噪电路
    • US5355531A
    • 1994-10-11
    • US928939
    • 1992-08-11
    • Yoshihiro IwataMitsuo Shiraishi
    • Yoshihiro IwataMitsuo Shiraishi
    • H04B1/10H03G3/00H03G3/34
    • H03G3/345H03G3/001
    • A squelch circuit for a radio transmitter/receiver includes an amplifier, a digitally-controlled electronic volume control, a volume adjusting variable resistor, and a volume controller. The amplifier amplifies a received audio signal input and provides the received audio signal to a loudspeaker. The digitally-controlled electronic volume control changes the output level of the amplifier. The volume adjusting variable resistor outputs data representing a volume value. The volume controller constantly detects changes in volume value data output from the variable resistor, and controls an attenuation amount of the digitally-controlled electronic volume control in accordance with the volume value represented by the variable resistor. While in a "mute" state, this volume control continues until a predetermined time has elapsed since the detection of the change in volume value data. The volume controller then sets the attenuation amount of the digitally-controlled electronic volume control to an infinite attenuation amount.
    • 用于无线电发射机/接收机的静噪电路包括放大器,数字控制电子音量控制,音量调节可变电阻器和音量控制器。 放大器放大接收到的音频信号输入,并将接收到的音频信号提供给扬声器。 数字控制电子音量控制改变放大器的输出电平。 音量调节可变电阻输出表示音量值的数据。 音量控制器不断地检测从可变电阻器输出的音量值数据的变化,并且根据由可变电阻器表示的音量值来控制数字控制的电子音量控制的衰减量。 当处于“静音”状态时,该音量控制继续,直到检测到音量值数据的改变为止已经过去了预定的时间。 然后,音量控制器将数字控制的电子音量控制的衰减量设定为无限衰减量。
    • 9. 发明申请
    • Frequency modulation apparatus and frequency modulation method
    • 调频装置及调频方式
    • US20090009582A1
    • 2009-01-08
    • US12230716
    • 2008-09-04
    • Mitsuo Shiraishi
    • Mitsuo Shiraishi
    • B41J2/435
    • H04N1/053H04N1/1135H04N1/12H04N2201/02439H04N2201/0471H04N2201/04732H04N2201/04744H04N2201/04774H04N2201/04793H04N2201/04794
    • A frequency modulation apparatus capable of reducing a peak level of a radiation noise of a characteristic frequency band due to an image clock.This frequency modulation apparatus is used in an image formation apparatus having an image bearing body to be scanned by a laser beam, and comprises an auxiliary clock calculating portion for calculating an auxiliary clock period based on a reference clock period and a modulation coefficient, and an image clock generating portion for generating the image clock in which a frequency is different at least in one portion and other portions of an image area on a main scan line to be scanned by the laser beam on said image bearing body based on the initial period value set in advance and said auxiliary clock period, and said image clock generating means perform a frequency modulation so that the frequency of said image clock changes within a predetermined fluctuation.
    • 一种能够降低由于图像时钟引起的特征频带的辐射噪声的峰值电平的频率调制装置。 该频率调制装置用于具有要由激光束扫描的图像承载体的图像形成装置,并且包括:辅助时钟计算部分,用于基于参考时钟周期和调制系数计算辅助时钟周期;以及 图像时钟产生部分,用于基于初始周期值,生成图像时钟,其中至少在一个部分中的频率不同,并且主扫描线上的图像区域的其他部分被激光束扫描在所述图像承载体上 所述图像时钟发生装置执行频率调制,使得所述图像时钟的频率在预定的波动内变化。
    • 10. 发明授权
    • Frequency modulation apparatus and frequency modulation method
    • 调频装置及调频方式
    • US07369148B2
    • 2008-05-06
    • US10795336
    • 2004-03-09
    • Mitsuo Shiraishi
    • Mitsuo Shiraishi
    • B41J2/435B41J2/47
    • H04N1/053H04N1/1135H04N1/12H04N2201/02439H04N2201/0471H04N2201/04732H04N2201/04744H04N2201/04774H04N2201/04793H04N2201/04794
    • A frequency modulation apparatus capable of reducing a peak level of a radiation noise of a characteristic frequency band due to an image clock. This frequency modulation apparatus is used in an image formation apparatus having an image bearing body to be scanned by a laser beam. An auxiliary clock calculating portion calculates an auxiliary clock period based on a reference clock period and a modulation coefficient, and an image clock generating portion generates the image clock in which a frequency is different at least in one portion and other portions of an image area on a main scan line to be scanned by the laser beam on the image bearing body based on the initial period value set in advance and the auxiliary clock period, and the image clock generating portion performs a frequency modulation so that the frequency of the image clock changes within a predetermined fluctuation.
    • 一种能够降低由于图像时钟引起的特征频带的辐射噪声的峰值电平的频率调制装置。 该频率调制装置用于具有要被激光束扫描的图像承载体的图像形成装置中。 辅助时钟计算部分基于参考时钟周期和调制系数来计算辅助时钟周期,并且图像时钟产生部分至少在图像区域的一部分和其他部分中生成频率不同的图像时钟 基于预先设定的初始周期值和辅助时钟周期的激光束在图像承载体上扫描的主扫描线,并且图像时钟产生部分执行频率调制,使得图像时钟的频率改变 在预定的波动范围内。