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    • 13. 发明申请
    • IMAGING LENS
    • 成像镜头
    • US20120200945A1
    • 2012-08-09
    • US13445154
    • 2012-04-12
    • Yoji KUBOTAKenichi KubotaHitoshi HiranoIchiro Kurihara
    • Yoji KUBOTAKenichi KubotaHitoshi HiranoIchiro Kurihara
    • G02B9/34
    • G02B13/004
    • An imaging lens includes a first lens having positive refractive power; a second lens having negative refractive power; a third lens having positive refractive power; and a fourth lens having positive refractive power, arranged from an object side to an image plane side. In the first lens, a curvature radius on an object-side surface is positive and a curvature radius of an image-side surface is negative. In the second lens, curvature radii of an object-side surface and an image-side surface are both positive. In the third lens, curvature radii of an object-side surface and an image-side surface thereof are both negative. When the whole lens system has a focal length f and a distance from the object-side surface of the first lens to an image-side surface of the fourth lens is L14, the imaging lens satisfies the following expression: 0.5
    • 成像透镜包括具有正折光力的第一透镜; 具有负屈光力的第二透镜; 具有正折射光焦度的第三透镜; 以及从物体侧到像面侧布置的具有正折光力的第四透镜。 在第一透镜中,物体侧表面上的曲率半径为正,图像侧表面的曲率半径为负。 在第二透镜中,物体侧表面和图像侧表面的曲率半径均为正。 在第三透镜中,物体侧表面和图像侧表面的曲率半径均为负。 当整个透镜系统具有焦距f并且从第一透镜的物体侧表面到第四透镜的像侧表面的距离为L14时,成像透镜满足以下表达式:0.5
    • 15. 发明授权
    • Sealing devices for doors
    • 密封装置用于门
    • US5237776A
    • 1993-08-24
    • US852862
    • 1992-03-17
    • Kenichi Kubota
    • Kenichi Kubota
    • E06B7/18
    • E06B7/18
    • A sealing device for movable panels such as doors, windows or the like, the panels being supported by rails and comprising a pivoting member extending from the support rail, the pivoting member has first and second ends and is rotatable between a normal horizontal position and an engagible vertical position. A weighted member is attached to the first end for maintaining the pivoting member in the normal horizontal position. A sealing member extends from the second end, the sealing member is engagible against a side of the panel to seal the same only when the pivoting member is in the vertical position. The pivoting member is only movable and maintainable in the engaged vertical position by a retractable actuator means capable of applying a sufficient force to move the weighted member and maintain the pivoting member in the engaged vertical position.
    • 一种用于可移动面板(例如门,窗等)的密封装置,所述面板由轨道支撑并且包括从所述支撑轨道延伸的枢转构件,所述枢转构件具有第一和第二端,并且可在正常水平位置和 可垂直的垂直位置。 加重构件附接到第一端以将枢转构件保持在正常水平位置。 密封构件从第二端延伸,密封构件可接合面板的侧面,以便仅在枢转构件处于垂直位置时密封构件。 枢转构件仅通过能够施加足够的力来移动加重构件并将枢转构件保持在接合垂直位置的可伸缩致动器装置可移动并保持在接合的垂直位置。
    • 16. 发明授权
    • Pump with rotating and reciprocating piston
    • 泵与旋转和往复活塞
    • US4797073A
    • 1989-01-10
    • US106370
    • 1987-10-09
    • Kenichi Kubota
    • Kenichi Kubota
    • F04B7/06F04B19/02
    • F04B7/06
    • A plunger pump has a plunger adapted to slide in the axial direction and rotate by a combination of worm and worm wheel. A cylindrical pump body has an axial extension at one free end through which a control pin extends upwardly at a right angle relative to the extension, while the plunger carried on the pump in a cantilever fashion has an inclined end face cam, an adjustment cam and a worm wheel on the same side as the axial extension. The worm wheel meshes with a worm directly connected to a crankshaft of an engine and the crankshaft is not held on the pump body. As the crankshaft is rotated, the plunger is caused to rotate by meshing engagement of the worm and the worm wheel and at the same time slide in the pump body by contact of the end face cam with the control pin whereby liquid held in the pump chamber is discharged from the delivery port. The axial extension is formed with plural pairs of stepped surfaces and by selecting one pair of the stepped surfaces and exchanging the subplunger with other one, a volume of the pump chamber can be changed as required, since the control pin has a tapered part at the upper part thereof and the latter contacts the adjustment cam on the plunger.
    • 柱塞泵具有适于沿轴向方向滑动并通过蜗轮和蜗轮的组合旋转的柱塞。 圆柱形泵体在一个自由端具有轴向延伸,通过该轴向延伸,控制销相对于延伸部以直角向上延伸,而以悬臂方式承载在泵上的柱塞具有倾斜端面凸轮,调节凸轮和 蜗轮与轴向延伸同一侧。 蜗轮与直接连接到发动机曲轴的蜗杆啮合,曲轴不被保持在泵体上。 当曲轴旋转时,通过蜗杆和蜗轮的啮合啮合使柱塞旋转,并且同时通过端面凸轮与控制销接触而在泵体内滑动,由此保持在泵室中的液体 从出货口排出。 轴向延伸部形成有多对台阶面,通过选择一对台阶面,并将其与另一对延伸,可以根据需要改变泵室的体积,因为控制销具有锥形部 其上部与后者接触柱塞上的调节凸轮。
    • 18. 发明授权
    • Lubricating oil pump
    • 润滑油泵
    • US4036326A
    • 1977-07-19
    • US600486
    • 1975-07-30
    • Osamu MukaiAkira MiyataniKokichi FukuzawaYoshiro NagaoKenichi KubotaMasakuni ShibuyaShigelu Kobayashi
    • Osamu MukaiAkira MiyataniKokichi FukuzawaYoshiro NagaoKenichi KubotaMasakuni ShibuyaShigelu Kobayashi
    • F04B7/06F16N13/04
    • F16N13/04
    • A lubricating oil pump comprising a distributor rotatably fitted in a cylinder chamber of a pump body, a plunger fitted to said distributor for the purpose of forming a pump chamber between said distributor and said plunger, said plunger being rotatable integrally with said distributor in rotational direction but being capable of performing relative movement in thrust direction in respect to said distributor, a cam and protuberance formed on one end face of said plunger, and a cam shaft comprising a cylindrical guide-column portion and control cam portion respectively engageable with said cam and protuberance for the purpose of controlling the stroke of said plunger, said lubricating oil pump thereby making it possible to manufacture at a low cost, being capable of maintaining high pumping efficiency and making it possible to control the delivery.
    • 一种润滑油泵,包括可旋转地装配在泵体的气缸室中的分配器,安装到所述分配器的柱塞,用于在所述分配器和所述柱塞之间形成泵室,所述柱塞可旋转地与所述分配器一体旋转 但是能够相对于所述分配器在推力方向上执行相对运动,形成在所述柱塞的一个端面上的凸轮和凸起,以及包括圆柱形引导柱部分和控制凸轮部分的凸轮轴,所述凸轮轴和凸轮分别可与所述凸轮接合, 用于控制所述柱塞的行程的突起,所述润滑油泵由此能够以低成本制造,能够保持高的泵送效率并且可以控制输送。
    • 20. 发明授权
    • Imaging lens
    • 成像镜头
    • US08508648B2
    • 2013-08-13
    • US13206136
    • 2011-08-09
    • Yoji KubotaKenichi KubotaHitoshi HiranoIchiro KuriharaYoshio IseSumio Fukuda
    • Yoji KubotaKenichi KubotaHitoshi HiranoIchiro KuriharaYoshio IseSumio Fukuda
    • H04N5/225G02B3/02G02B9/34
    • G02B13/004
    • An imaging lens includes an aperture stop ST, a first lens L1 that is shaped to form a meniscus lens that directs a convex surface to the object side near an optical axis and has positive refractive power, a second lens L2 that is shaped to form a meniscus lens that directs a convex surface to the object side near the optical axis and has negative refractive power, a third lens L3 that is shaped to form a meniscus lens that directs a concave surface to the object side near the optical axis and has positive refractive power, and a fourth lens L4 that is shaped to form a meniscus lens that directs a convex surface to the object side near the optical axis, arranged in this order from an object side to an image side. When the first lens L1 has a focal length f1 and the second lens L2 has a focal length f2, the imaging lens is configured such that a relationship 0.3
    • 成像透镜包括孔径光阑ST,第一透镜L1,其被成形为形成朝向光轴附近的物体侧的凸形表面并具有正折光力的弯月形透镜;第二透镜L2,其被成形为 弯曲透镜,其将凸表面引导到靠近光轴的物体侧并具有负折光力;第三透镜L3,其被成形为形成弯曲透镜,其将凹面指向靠近光轴的物体侧并且具有正折射率 功率以及第四透镜L4,其被成形为形成从物体侧到像侧依次布置的凸起表面朝向光轴附近的物体侧的弯月形透镜。 当第一透镜L1具有焦距f1并且第二透镜L2具有焦距f2时,成像透镜被配置为使得满足关系0.3 <| f1 / f2 | <0.7。