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    • 1. 发明申请
    • ULTRASONIC WAVE GENERATOR
    • 超声波发生器
    • WO1984000821A1
    • 1984-03-01
    • PCT/JP1983000271
    • 1983-08-18
    • WEST ELECTRIC CO., LTD.IWATA, Hiroshi
    • WEST ELECTRIC CO., LTD.
    • G02B07/11
    • G03B3/10
    • This ultrasonic wave generator is particularly adapted for an ultrasonic automatic focusing device. The generator comprises a light-transmissive ultrasonic vibrator (2) of which at least at one layer is formed of a light-transmissive ceramic, fixing means (12), (6'), (6) for attaching the vibrator (2) to the front surface of a photographic lens (1), (1') such as that of a photographic camera, a video camera, or the like, and control means for controlling the supply of energy to the vibrator (2). A camera device which includes an ultrasonic automatic focusing unit can be very simply constructed by employing this ultrasonic wave generator with the vibrator (2) on the front surface of the lens (1), (1') in the automatic focusing unit of the photographic lens of a photographic camera, a video camera or the like.
    • 该超声波发生器特别适用于超声波自动聚焦装置。 该发生器包括至少在一层由透光陶瓷形成的透光超声波振动器(2),用于将振动器(2)连接到的固定装置(12),(6'),(6) 照相镜头(1),(1')的前表面,诸如照相机,摄像机等的前表面,以及用于控制向振动器(2)供应能量的控制装置。 包括超声波自动聚焦单元的相机装置可以非常简单地通过在摄影的自动聚焦单元中将透镜(1)的前表面上的振动器(2),(1')采用该超声波发生器 照相机的镜头,摄像机等。
    • 3. 发明申请
    • PIEZOELECTRIC TRANSFORMER
    • 压电变压器
    • WO1995021463A1
    • 1995-08-10
    • PCT/JP1995000151
    • 1995-02-06
    • WEST ELECTRIC CO., LTD.TOKUSHIMA, AkiraIWATA, Hiroshi
    • WEST ELECTRIC CO., LTD.
    • H01L41/08
    • H01L41/107
    • A piezoelectric transformer which can produce a high-voltage and large-current and has a low output impedance. Deterioration of the characteristics and breakage due to heat do not easily occur even when its thickness is an thin as 2.5 mm. The transformer is a rectangular plate having a thickness of 0.5-2.5 mm and made of a piezoelectric ceramic provided with a thickness-direction polarized section which is formed by polarizing part of the rectangular plate in the thickness direction and functions as an input section and a length-direction polarized section which is formed by polarizing the other part of the rectangular plate in the length direction and functions as an output section. The ratio of the length to the width of the rectangular plate is 0.2-0.6 so that the secondary resonance frequency generated when the transformer oscillates in the length direction while the output section is open is almost equal to the primary resonance frequency generated when the transformer oscillates in the width direction.
    • 一种可产生高电压和大电流且具有低输出阻抗的压电变压器。 即使当其厚度薄到2.5mm时,由于热量而导致的特性劣化和断裂也不易发生。 变压器是厚度为0.5-2.5mm的矩形板,由压电陶瓷制成,该压电陶瓷设置有厚度方向偏振部分,该厚度方向极化部分是沿厚度方向偏振矩形板的一部分而形成的,并用作输入部分和 长方向极化部,其通过使矩形板的另一部分在长度方向偏振而形成,用作输出部。 矩形板的长度与宽度之比为0.2-0.6,使变压器在长度方向上振荡而产生的二次谐振频率与输出部分断开时几乎相等。 在宽度方向。
    • 5. 发明申请
    • SEMICONDUCTOR DEVICE
    • 半导体器件
    • WO1998025307A1
    • 1998-06-11
    • PCT/JP1997004344
    • 1997-11-27
    • SHARP KABUSHIKI KAISHAIWATA, HiroshiKAKIMOTO, SeizouNAKANO, MasayukiMATSUOKA, Toshimasa
    • SHARP KABUSHIKI KAISHA
    • H01L27/08
    • H01L29/1087H01L27/092H01L29/7832
    • A semiconductor device which materializes dynamic threshold operation, on the assumption of the application of a bulk semiconductor substrate. The semiconductor substrate has a first conductivity type well region (11), a source region (12) and a drain region (13) of second conductivity type are made in the vicinity of the surface of the first conductivity type of well region (11), a channel region (14) is provided between these regions (12 and 13), a gate insulating film (15) and a gate electrode (16) are stacked in order on the channel region (14), and the gate electrode (16) is connected to the well region (11) through the contact hole (not shown in the figure) of the gate insulating film (15). In this transistor, as compared with a conventional SOI substrate, the resistance of the well region (11) can be lowered to about one-tenth.
    • 在假设应用体半导体衬底的情况下实现动态阈值操作的半导体器件。 半导体衬底具有第一导电类型阱区(11),在第一导电类型的阱区(11)的表面附近形成第二导电类型的源区(12)和漏区(13) 在这些区域(12,13)之间设置沟道区域(14),栅极绝缘膜(15)和栅极电极(16)依次层叠在沟道区域(14)上,栅电极(16) )通过栅极绝缘膜(15)的接触孔(图中未示出)连接到阱区(11)。 在该晶体管中,与传统的SOI衬底相比,阱区(11)的电阻可以降低到约十分之一。