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    • 51. 发明授权
    • Ink jet printer head and piezoelectric actuator for the head
    • 喷墨打印机头和压电执行机构
    • US06719409B2
    • 2004-04-13
    • US10059184
    • 2002-01-31
    • Yasuhiro SasakiHirofumi NakamuraAtsushi Ochi
    • Yasuhiro SasakiHirofumi NakamuraAtsushi Ochi
    • B41J2045
    • B41J2/045B41J2/055B41J2/14B41J2002/14362B41J2202/11
    • An ink jet printer head and a piezoelectric actuator for the head, in which energy conversion efficiency from an electric energy to a mechanical vibration energy is high, and its mechanical displacement of a vibration transferring plate is large, are provided. An ink jet printer head having a piezoelectric actuator provides an upper electrode, a piezoelectric plate, a lower electrode, a vibration transferring plate, and a pressure chamber, whose shape is a rectangle and its length ratio of the short side to the long side is 0.8 or more and 1.0 or less. And the piezoelectric plate having the lower electrode is bonded to the vibration transferring plate at a position within the inside wall of the pressure chamber and the center positions of the piezoelectric plate and the pressure chamber are set to be almost equal. Therefore, the energy conversion efficiency of the piezoelectric plate can be utilized in its maximum, and the piezoelectric actuator whose mechanical displacement is large can be realized. Consequently, the industrial value of the ink jet printer head becomes large by applying the piezoelectric actuator to an ink jet printer.
    • 提供了一种喷墨打印机头和用于头部的压电致动器,其中从电能到机械振动能量的能量转换效率高,并且其振动传递板的机械位移大。 具有压电致动器的喷墨打印头具有矩形形状的上电极,压电板,下电极,振动传递板和压力室,其短边与长边的长度比为 0.8以上且1.0以下。 并且具有下电极的压电板在压力室的内壁内的位置处接合到振动传递板,并且压电板和压力室的中心位置被设定为几乎相等。 因此,能够最大限度地利用压电板的能量转换效率,能够实现机械位移大的压电致动器。 因此,通过将压电致动器施加到喷墨打印机,喷墨打印机头的工业价值变大。
    • 54. 发明授权
    • Ink jet head
    • 喷墨头
    • US06488355B2
    • 2002-12-03
    • US09813009
    • 2001-03-21
    • Hirofumi NakamuraTorahiko Kanda
    • Hirofumi NakamuraTorahiko Kanda
    • B41J215
    • B41J2/1632B41J2/14233B41J2/161B41J2/1623B41J2002/14419B41J2002/14459
    • In an ink jet head, in order to make the occupying area of a chamber associated to each nozzle as small as possible, while maintaining a discharge ink drop volume, and on the other hand, to locate a number of nozzles with a high density, the plan view shape of a pressure plate provided to each chamber is so configured to fulfill the relation of 1:≦A≦2, where “A” is the ratio of an circumscribed circle diameter of the plan view shape of the pressure plate to an inscribed circle diameter of the plan view shape of the pressure plate. For example, the pressure plate is formed to have the plan view shape of a substantial square or a substantial rhombus. The chambers having such a feature are located in the form of a matrix. Thus, a stably driven, highly reliable ink jet head can be realized.
    • 在喷墨头中,为了使与每个喷嘴相关联的室的占有面积尽可能小,同时保持排出墨滴体积,另一方面,为了定位高密度的多个喷嘴, 设置在每个室的压板的平面图形状被配置为满足1:<= A <= 2的关系,其中“A”是压板的平面图形的外接圆直径的比 达到压板的平面图形的内切圆直径。 例如,压板形成为具有大致正方形或大致菱形的平面图形状。 具有这种特征的腔室以矩阵的形式定位。 因此,可以实现稳定驱动,高可靠性的喷墨头。
    • 55. 发明授权
    • Crystalline 1-kestose and process for preparing the same
    • 结晶1-kestose及其制备方法
    • US06479657B1
    • 2002-11-12
    • US09091182
    • 1998-09-29
    • Koji NishizawaHitoshi MatsumotoHirofumi NakamuraTakashi KawakamiYuko NakadaMasao HirayamaTakashi Adachi
    • Koji NishizawaHitoshi MatsumotoHirofumi NakamuraTakashi KawakamiYuko NakadaMasao HirayamaTakashi Adachi
    • C07H106
    • C07H3/06C12P19/18C30B7/00
    • A process for producing crystal 1-kestose wherein granular crystal 1-kestose in the form of large crystals can be produced at a high yield is disclosed. A highly pure solution of 1-kestose is concentrated to a Brix of 75 or higher; either seed crystals are added, or the solution is vacuum-concentrated to generate microcrystals for use as nuclei; then, a crystal growing step by vacuum-concentration and a microcrystal dissolving step for redissolving microcrystals which have formed in the concentrate are repeated at least twice each. Alternatively, a highly pure solution of 1-kestose is concentrated to a Brix of 80 or higher; either seed crystals are added, or the solution is allowed to initiate crystallization; after crystals are allowed to grow, a cooling step where the temperature is lowered by 5° C. to 20° C. from the previous step and a crystal growing step where the concentrate is maintained at the temperature to allow the crystals to grow are repeated at least twice each. Also, an enzyme for producing 1-kestose efficiently from sucrose is disclosed.
    • 公开了一种生产晶体1-晶体的方法,其中可以以高产率制备大晶体形式的颗粒状晶体1-晶体。 1-kestose的高纯度溶液浓缩至75或更高的白利糖度; 加入晶种,或者将溶液真空浓缩以产生用作核的微晶; 然后,通过真空浓缩的晶体生长步骤和在浓缩物中形成的再溶解微晶的微晶溶解步骤重复至少两次。 或者,将高效纯化的1-kestose溶液浓缩至白利糖度为80或更高; 加入晶种,或使溶液开始结晶; 在使晶体生长之后,重复上述步骤的温度降低5℃至20℃的冷却步骤和将浓缩物保持在允许晶体生长的温度的晶体生长步骤 至少两次。 另外,公开了一种从蔗糖中有效产生1-kestose的酶。
    • 56. 发明授权
    • Electron gun
    • 电子枪
    • US06242852B1
    • 2001-06-05
    • US09303639
    • 1999-05-03
    • Hirofumi NakamuraKoichiro SumiShigenori Tagami
    • Hirofumi NakamuraKoichiro SumiShigenori Tagami
    • H01J900
    • H01J1/20H01J29/04
    • A heater is built in an inner sleeve of an electron gun, and an impregnated type cathode is fixed at an end portion, on the grid electrodes side, of the inner sleeve. The inner sleeve, having an outside diameter ranging from about 1.0 mm to 1.4 mm and a length substantially equal to a primary spiral length of the heater is inserted in an outer sleeve. The outer sleeve has on the grid electrodes side a small-diameter portion having an outside diameter ranging from about 2.2 mm to about 2.6 mm and on the base end side a large-diameter portion having an outside diameter ranging from about 2.6 mm to 3.0 mm. The inner sleeve is inserted in the small-diameter portion and is fixed thereto by means of strap-like tabs. A holder is fixed around the outer peripheral portion of the large-diameter portion, and is assembled in a ceramic disk via the holder.
    • 在电子枪的内套筒内装有加热器,在内套筒的电极侧的端部固定浸渍型阴极。 具有约1.0mm至1.4mm的外径和基本上等于加热器的主螺旋长度的长度的内套筒插入外套管中。 外套筒在栅格电极侧具有外径为约2.2mm至约2.6mm的小直径部分,并且在基端侧具有外径范围为约2.6mm至3.0mm的大直径部分 。 内套筒插入小直径部分并通过带状突片固定在其上。 保持器固定在大直径部的外周部周围,经由保持架组装在陶瓷盘中。