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    • 1. 发明授权
    • Piezoelectric resonator and piezoelectric resonator part
    • 压电谐振器和压电谐振器部分
    • US06404102B1
    • 2002-06-11
    • US09631699
    • 2000-08-03
    • Toshiyuki SuzukiNobuyuki MikiMasakazu HiroseMasayoshi Inoue
    • Toshiyuki SuzukiNobuyuki MikiMasakazu HiroseMasayoshi Inoue
    • H01L4108
    • H03H9/177H03H9/0207H03H9/02157H03H9/0504H03H9/1014
    • A piezoelectric substrate is constituted by a piezoelectric material of an effective Poisson's ratio being less than 1/3. The substrate has a pair of opposite faces and the opposite faces are provide with a pair of vibrating electrodes in correspondence. The opposite faces of the piezoelectric substrate are rectangular respectively. The sum of the lengths Lc of the one faces in the opposite faces 1a, 1b and the length Wc of the other side of the same is limited within range 2.22 mm≦≦2.24 mm or 2.34 mm≦≦2.48 mm, said one faces being vertical each other. The areas Sc of the opposite faces are 1.22 mm2≦Sc≦1.26 mm2 or 1.35 mm2≦Sc≦1.538 mm2. Accordingly, though using the piezoelectric material of the effective Poisson's ratio being less than 1/3, vibration in the thickness extensional fundamental waves can be steadily utilized.
    • 压电基板由有效泊松比的压电材料构成,小于1/3。 基板具有一对相对的面,相对的面相应地设有一对振动电极。 压电基板的相对面分别为矩形。 相对面1a,1b中的一个面的长度Lc和其另一面的长度Wc的总和被限制在2.22mm <= 2.24mm或2.34mm <= <= 2.48mm的范围内, 说一个人面对垂直。 相对面的面积Sc为1.22 mm2 <= Sc <= 1.26 mm2或1.35 mm2 <= Sc <= 1.538 mm2。 因此,尽管使用有效泊松比的压电材料小于1/3,但可以稳定地利用厚度延伸基波的振动。
    • 7. 发明授权
    • Digital AM transmitter
    • 数字AM发射机
    • US5450444A
    • 1995-09-12
    • US275415
    • 1994-07-15
    • Nobuyuki MikiHaruhiko Yura
    • Nobuyuki MikiHaruhiko Yura
    • H03C1/00H03F3/217H04B1/04H04B14/02H04L27/04H04L27/12H04L27/20
    • H04L27/04H03F3/2178H04B14/023
    • A digital AM transmitter according to the invention converts a audio signal to a digital audio signal of a plurality of bits by an A/D converter, outputs a logical code signal of "1" from each of those output terminals of a code unit, whose number corresponds to the digital value of the digital audio signal, selectively generates driving signals from those output terminals of a code shifter which are equal in number to the logical code signals of "1" from the code unit, while changing the driving-signal-generating output terminals of the code shifter from one to another (or some to others) with the lapse of time, selectively guiding, with the use of carrier wave switches, those portions of a carrier wave signal which have been divided by a carrier wave divider, to power amplifiers in accordance with driving signals generated from the code shifter, amplifies the guided portions of the carrier wave signal by power amplifiers, combined the amplified portions of the carrier wave signal by a combiner, and passes the combined signal through a band filter, thereby generating an amplitude modulation wave.
    • 根据本发明的数字AM发射机通过A / D转换器将音频信号转换成多位的数字音频信号,从代码单元的每个输出端输出“1”的逻辑码信号, 数字对应于数字音频信号的数字值,从编码单元选择性地生成与代码移位器的输出端相当于逻辑代码信号“1”的驱动信号,同时改变驱动信号 - 随着时间的推移,将代码移位器的输出端子从一个(或一些到另一个)生成,使用载波切换选择性地引导已经被载波分频器划分的载波信号的那些部分 ,根据从码移器产生的驱动信号到功率放大器,通过功率放大器放大载波信号的引导部分,将载波信号的放大部分合成, 组合器,并将组合信号通过带滤波器,从而产生振幅调制波。
    • 8. 发明授权
    • Rapid temperature rise heater element
    • 快速升温加热元件
    • US5773158A
    • 1998-06-30
    • US579422
    • 1995-12-27
    • Kentaro SawamuraEtsuo MitsuhashiMasaru NanaoNobuyuki MikiMasahiro KitajimaMasatada Yodogawa
    • Kentaro SawamuraEtsuo MitsuhashiMasaru NanaoNobuyuki MikiMasahiro KitajimaMasatada Yodogawa
    • F23Q7/00H05B3/14B32B9/00
    • H05B3/141F23Q7/001F23Q2007/004
    • The invention provides a rapid temperature rise heater element comprising an exothermic section (1) and a lead section (2), the exothermic section (1) comprising an exothermic section conductor of ceramic material which includes at least four stacked exothermic section conductive layers (1a) with an exothermic section insulating layer (1c) of ceramic material interposed therebetween and connections (1b) each for connecting adjacent exothermic section conductive layers (1a). The lead section (2) includes first and second lead section conductive layers (2a and 2b) electrically connected to the uppermost and lowermost exothermic section conductive layers (1a), respectively, the first and second lead section conductive layers (2a and 2b) being stacked with a lead section insulating layer (2c) of ceramic material interposed therebetween. A durable rapid temperature rise heater element can be efficiently fabricated at low cost while maintaining heater performance.
    • 本发明提供了一种包括放热部分(1)和引线部分(2)的快速升温加热器元件,所述放热部分(1)包括陶瓷材料的放热部分导体,其包括至少四个层叠的放热部分导电层 ),其间插入陶瓷材料的放热部绝缘层(1c),以及用于连接相邻的放热部分导电层(1a)的连接(1b)。 引线部分(2)包括分别与最上部和最下部的放热部分导电层(1a)电连接的第一和第二引线部分导电层(2a和2b),第一和第二引线部分导电层(2a和2b) 层叠有介于其间的陶瓷材料的引线部绝缘层(2c)。 可以以低成本有效地制造耐用的快速升温加热器元件,同时保持加热器性能。