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    • 5. 发明授权
    • Apparatus for ejecting liquid droplets
    • 用于喷射液滴的装置
    • US06736492B2
    • 2004-05-18
    • US10013756
    • 2001-12-10
    • Takahisa YamadaTakashi MatsuyamaMasanobu Shimizu
    • Takahisa YamadaTakashi MatsuyamaMasanobu Shimizu
    • B41J245
    • B41J2/14209B41J2002/14491B41J2202/20
    • An ink jet head includes four plate-like piezoelectric bodies each having a primary surface having a plurality of parallel grooves formed therein in a predetermined direction, a end surface on which a one end of the groove is open, and an electrode formed on the inner surface of the groove. These piezoelectric bodies are stacked one upon the other on the primary surfaces under the state that the openings of these piezoelectric bodies are allowed to face the same direction, and that the primary surfaces of these piezoelectric bodies are allowed to face the same direction. Further, formed is a common liquid supply path allowing the plural grooves of the piezoelectric bodies to communicate with each other to form ink flow path.
    • 一种喷墨头包括四个板状压电体,每个板状压电体的主表面在预定方向上形成有多个平行槽,其一端敞开的端面和形成在内部的电极 凹槽表面。 这些压电体在这些压电体的开口被允许面向相同方向的状态下在主表面上彼此堆叠,并且允许这些压电体的主表面朝向相同的方向。 此外,形成为允许压电体的多个沟槽彼此连通以形成墨水流路的常见的液体供给路径。
    • 10. 发明授权
    • Method of manufacturing stator for stepping motor
    • 制造步进电机定子的方法
    • US5548885A
    • 1996-08-27
    • US218255
    • 1994-03-28
    • Takahisa Yamada
    • Takahisa Yamada
    • B21D22/26B21D28/10B21D53/00H02K15/02H02K37/14
    • H02K15/022Y10T29/49009
    • A method of forming a stator for a stepping motor, including the steps of forming comb teeth by cutting a flat section of a plate having a cylindrical section around the flat section and bending the comb teeth up to a first angle. Next, the comb teeth are bent up to a second angle larger than the first angle and the thickness of the comb teeth is reduced so as to render uniform the thickness of all the comb teeth. Then, the cylindrical section is subjected to a drawing process at least one time. Finally, the comb teeth are bent up to a right angle. As a result, the occurrence of cambers in the comb teeth is eliminated and the comb teeth are not inclined in the peripheral direction. Also, the accuracy with which the comb teeth are bent to a right angle can be improved thereby.
    • 一种形成用于步进电机的定子的方法,包括以下步骤:通过切割具有围绕平坦部分的圆柱形部分的板的平坦部分并将梳齿弯曲成第一角度来形成梳齿。 接下来,梳齿弯曲成大于第一角度的第二角度,并且梳齿的厚度减小,使得所有梳齿的厚度均匀。 然后,对圆筒部进行至少一次拉伸处理。 最后,梳齿弯曲成直角。 结果,消除梳齿中的翘曲,并且梳齿不沿圆周方向倾斜。 此外,可以提高梳齿弯曲成直角的精度。