专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4700177A Sound generating apparatus with sealed air chamber between two sounding plates 失效
标题翻译：两个发声板之间具有密封空气室的发声装置
公开(公告)号：US4700177A
公开(公告)日：1987-10-13
申请号：US682755
申请日：1984-12-17
申请人： Toru Nakashima , Haruhiko Inoue , Sigeki Furuta
发明人： Toru Nakashima , Haruhiko Inoue , Sigeki Furuta
IPC分类号： G10K9/122 , H04R17/10 , G08B3/00
CPC分类号： G10K9/122
摘要： A sound generating apparatus using piezoelectric elements includes first and second sounding plates arrayed in parallel with each other. The first and second sounding plates respectively include first and second diaphragms, and first and second thin plate-like piezoelectric elements laminated onto the first and second diaphragms. The first and second sounding plates are coupled together at the outer peripheral portions by a ring, thereby forming a hermetically sealed internal air chamber. The first and second sounding plates coupled together by the ring, and containing the internal air chamber cooperate to form a sounding member. The sounding member is supported by means of four resilient supporting members made of, for example, rubber, in a housing. In the housing, a front air layer and a rear air layer are formed on both sides of the sounding member, respectively. The front and rear air layers communicate with each other through a ringlike sound path. A plurality of sound passing holes are distributed closer to the outer periphery portion, while confronting the front air layer. A drive circuit applies a drive voltage signal in parallel to the first and second sounding plates.
摘要翻译：使用压电元件的声音发生装置包括彼此平行排列的第一和第二声音板。第一和第二探测板分别包括第一和第二隔膜，以及层压在第一和第二隔膜上的第一和第二薄板状压电元件。第一和第二探测板通过环在外周部分耦合在一起，从而形成密封的内部空气室。通过环联接在一起并且容纳内部空气室的第一和第二探测板协作以形成探测构件。探测构件通过在壳体中由例如橡胶制成的四个弹性支撑构件支撑。在壳体中，分别在探测构件的两侧形成前空气层和后空气层。前后空气层通过环形声道相互连通。多个通声孔在面对前方空气层的同时更靠近外周部分布置。驱动电路将驱动电压信号并行地施加到第一和第二探测板。

2. 发明授权

US4724424A Warning chord sound producing apparatus including an integrated circuit 失效
标题翻译：包括集成电路的警报和声发声装置
公开(公告)号：US4724424A
公开(公告)日：1988-02-09
申请号：US815825
申请日：1986-01-02
申请人： Toru Nakashima , Haruhiko Inoue , Hirofumi Iwata
发明人： Toru Nakashima , Haruhiko Inoue , Hirofumi Iwata
IPC分类号： G10K1/063 , B06B1/02 , G10K9/12
CPC分类号： B06B1/0276 , B06B2201/20 , B06B2201/55
摘要： A 1-bit microcomputer driven by a clock signal has first and second output ports. The signals from these output ports control first and second transistors whose output signals are supplied to step-up transformers. The output signals from these transformers drive the sounding devices constructed of piezoelectric elements to produce a chord sound. The memory of the microcomputer stores a program by which first and second square-wave pulse-train signals formed of a combination of a plurality of square wave pulses and in which each unit pulse train has a mutually different basic frequency are output from the first and second output ports.
摘要翻译：由时钟信号驱动的1位微型计算机具有第一和第二输出端口。来自这些输出端口的信号控制其输出信号被提供给升压变压器的第一和第二晶体管。来自这些变压器的输出信号驱动由压电元件构成的探测装置以产生和弦声音。微型计算机的存储器存储由多个方波脉冲的组合形成的第一和第二方波脉冲串信号，其中每个单位脉冲串具有相互不同的基本频率的程序，从第一和第二方波输出，第二输出端口。

3. 发明授权

US4940938A Method and device for measuring characteristic magnetic distribution of a magnetic thin film using a magnetic head 失效
标题翻译：使用磁头测量磁性薄膜的特性磁分布的方法和装置
公开(公告)号：US4940938A
公开(公告)日：1990-07-10
申请号：US163104
申请日：1988-03-02
申请人： Seishi Naito , Shuji Tanabe , Toru Nakashima
发明人： Seishi Naito , Shuji Tanabe , Toru Nakashima
IPC分类号： G01R33/14
CPC分类号： G01R33/14
摘要： Primary and secondary coils are wound on a differential type magnetic head, and a low frequency signal is applied on the primary coil. Based on the difference between the output voltages from the head when an object of detection is placed near the magnetic head on the detection side and the output voltage therefrom when an object is not placed near the magnetic head, the magnetization characteristic curve of the magnetic flux and the magnetic field is calculated. Since the magnetization characteristic detection is determined by dividing a magnetic flux by the measured area cross section, once the magnetic flux is determined, a general B-H curve can be simply calculated. The magnetization characteristic measurement device includes a differential type magnetic head portion having plural differential type magnetic heads in linear arrangement which is positioned on or near the magnetic thin film of a detection object. The device can calculate magnetization characteristics of the magnetic thin film by applying a low frequency signal on the magnetic head, successively switching differential output voltages given to a cancellation core of the plural differential magnetic cores by a data converting section into digital data, and conducting software integration by a measured data analyzing section based on the data.
摘要翻译：初级线圈和次级线圈缠绕在差分型磁头上，低频信号施加在初级线圈上。当检测侧的磁头附近放置检测对象物的头部的输出电压与物体不靠近磁头时的输出电压之差时，磁通量的磁化特性曲线并计算磁场。由于通过将磁通除以测量面积横截面来确定磁化特性检测，所以一旦确定了磁通量，就可以简单地计算一般的B-H曲线。磁化特性测量装置包括具有多个位于检测对象的磁性薄膜上或附近的线性排列的差分型磁头的差动型磁头部分。该装置可以通过在磁头上施加低频信号来计算磁性薄膜的磁化特性，通过数据转换部分连续地将通过数据转换部分提供给多个差分磁芯的消除核心的差分输出电压切换成数字数据，并进行软件根据数据通过测量数据分析部分进行集成。

4. 发明授权

US4901016A Device having a magnetic head for measuring magnetization characteristics of a magnetic thin film 失效
标题翻译：具有用于测量磁性薄膜的磁化特性的磁头的装置
公开(公告)号：US4901016A
公开(公告)日：1990-02-13
申请号：US174448
申请日：1988-03-25
申请人： Sadatoshi Kusatani , Toru Nakashima
发明人： Sadatoshi Kusatani , Toru Nakashima
IPC分类号： G01R33/12 , G01R33/14 , G11B5/84
CPC分类号： G01R33/14
摘要： A magnetization characteristic measurement device includes a differential magnetic head, a signal generator for exciting the differential magnetic head with a low frequency signal, a magnetic head moving device for moving the differential magnetic head to a predetermined measuring position, a measured data converting device for sampling the differential output voltages from the magnetic head when it is positioned at the predetermined position and for converting the sampled values into digital values, and a measured data analyzing device for sequentially storing the obtained digital values and for calculating the magnetizing characteristics. The structure allows for simple and easy measurement of magnetization characteristics of magnetic thin films attached to a magnetic printing, magnetic tape, etc. by simply setting the magnetic thin film at a position. The result of the measurement is displayed on a display screen or indicated using a buzzing sound to thereby reduce inspection steps. Since the quality is displayed in reference to a predetermined standard, standardization of quality can be easily achieved.
摘要翻译：磁化特性测量装置包括差动磁头，用于激发具有低频信号的差分磁头的信号发生器，用于将差动磁头移动到预定测量位置的磁头移动装置，用于采样的测量数据转换装置当磁头位于预定位置时来自磁头的差分输出电压和用于将采样值转换成数字值;以及测量数据分析装置，用于顺序存储所获得的数字值并计算磁化特性。该结构允许通过简单地将磁性薄膜设置在位置来简单且容易地测量附着到磁性印刷，磁带等的磁性薄膜的磁化特性。测量结果显示在显示屏幕上或使用蜂鸣声指示，从而减少检查步骤。由于根据预定的标准显示质量，因此可以容易地实现质量的标准化。

5. 发明授权

US4844621A Fuel pump with passage for attenuating noise generated by impeller 失效
标题翻译：具有通道的燃油泵，用于衰减叶轮产生的噪音
公开(公告)号：US4844621A
公开(公告)日：1989-07-04
申请号：US230685
申请日：1988-08-10
申请人： Koji Umemura , Toru Nakashima , Yoshifumi Ina , Masashi Miyamoto
发明人： Koji Umemura , Toru Nakashima , Yoshifumi Ina , Masashi Miyamoto
IPC分类号： F02M37/04 , F02M37/08 , F02M37/20 , F04D5/00 , F04D9/00 , F04D29/66
CPC分类号： F04D5/002 , F02M37/048 , F02M37/08 , F02M37/20 , F04D29/669 , F04D9/003
摘要： A fuel pump of regenerative type mounted in a fuel tank. The fuel pump has a pump housing defining a pump chamber, an impeller rotatably mounted in the pump housing and provided with a multiplicity of blades formed thereon, and a driving device for driving the impeller. The fuel pump further has a vapor relief port for relieving, from the pump chamber into the space in the fuel tank, vapor of fuel generated as a result of rotation of the impellar, and a vapor relief extension passage connected to the vapor relief port and opening at least one end in the space in the fuel tank.
摘要翻译：安装在燃料箱中的再生式燃油泵。燃料泵具有限定泵室的泵壳体，可旋转地安装在泵壳体中并且设置有多个叶片的叶轮和用于驱动叶轮的驱动装置。燃料泵还具有用于从泵室释放到燃料箱中的空间中的蒸气释放口，由于所述叶轮的旋转而产生的燃料的蒸气以及连接到所述蒸汽释放口的蒸汽释放延伸通道和在燃料箱的空间中至少打开一端。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式