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    • 11. 发明授权
    • Half tone mask having multi-half permeation part and a method of manufacturing the same
    • 具有多半渗透部分的半色调掩模及其制造方法
    • US08133641B2
    • 2012-03-13
    • US12296563
    • 2007-05-11
    • Kap-Seok KangJae-Woo ParkSang-Uk ParkYu-Kyung SimKeun-Sik Lee
    • Kap-Seok KangJae-Woo ParkSang-Uk ParkYu-Kyung SimKeun-Sik Lee
    • G03F1/00
    • G03F1/50
    • Disclosed are a half tone mask having a multi semi-transmission part and a manufacturing method thereof that can pattern a plurality of layers using one mask, by having at least two or more semi-transmission parts with light transmission that are different from each other. The half tone mask having a multi semi-transmission part comprises a transparent substrate, a light transmission part formed the transparent substrate to transmit irradiation light of a predetermined wavelength band, a light shielding part formed the transparent substrate to shield the irradiation light of the predetermined wavelength band, and at least two or more semi-transmission parts formed by depositing semi-transmission material on the transparent substrate to pass through the irradiation light of the predetermined wavelength band with each different light transmission.
    • 公开了具有多重半透射部分的半色调掩模及其制造方法,其可以通过具有彼此不同的至少两个或更多个具有光透射的半透射部分,使用一个掩模来图案化多个层。 具有多重半透射部分的半色调掩模包括透明基板,形成透明基板以透射预定波长带的照射光的透光部分,形成透明基板的遮光部分,以屏蔽预定波长带的照射光 以及通过在透明基板上沉积半透射材料而形成的至少两个或更多个半透射部分,以通过每种不同光透射的预定波长带的照射光。
    • 13. 发明申请
    • HAND LIFT DEVICE
    • US20200277174A1
    • 2020-09-03
    • US16301416
    • 2018-09-20
    • Sang Uk Park
    • Sang Uk Park
    • B66F9/08B66F9/07B66F9/075B66F9/18B66F9/20
    • According to an embodiment of the present invention, there is provided a hand lift device including: a frame portion including a vertical frame, a first sprocket installed on an upper end of the vertical frame, and a second sprocket installed on a lower end of the vertical frame; a chain installed to engage with the first sprocket and the second sprocket; a cargo loading unit which is connected with the chain and disposed to be liftable along the vertical frame to load cargo; a power transmission portion which provides a driving force to the chain so that the cargo loading unit is lifted up and down; a sensor portion which is installed in an area where the frame portion is formed to be positioned at an upper side in a range where the cargo loading unit is lifted up and down and includes a proximity sensor to sense the cargo loaded on the cargo loading unit; and a controller which controls lifting up and down of the cargo loading unit by adjusting the driving of the power transmission portion according to a sensing signal from the sensor portion.According to the embodiment of the present invention, since the operator can automatically load the cargo by controlling through the cargo loading unit without manually loading the cargo, the hand lift device can operate faster than manual operation, load more cargo over the same time, and operate with a small number of persons, thereby reducing the cost.
    • 17. 发明申请
    • Motor having rivetless rotor core
    • 电机具有无铆钉转子芯
    • US20080284271A1
    • 2008-11-20
    • US12073899
    • 2008-03-11
    • Hong Jung KimSang Uk ParkHyung Chul Lee
    • Hong Jung KimSang Uk ParkHyung Chul Lee
    • H02K1/28H02K1/27
    • H02K1/276
    • The motor includes a cylindrical rotor core, a plurality of magnets axially penetrated in the rotor core, a pair of separation-preventing plates installed at both ends of the rotor core, and at least one fixing member to fix the separation-preventing plates to the rotor core. The fixing member includes a rod portion extending in an axial direction of the rotor core to be disposed on an outer circumferential surface of the rotor core, and supporting portions bent from both ends of the rod portion and used to support the separation-preventing plates. The separation-preventing plates can be fixed to the rotor core by the fixing member disposed on the outer circumferential surface of the rotor core. The fixing member has no risk of hindering the flow of magnetic flux generated from the magnets, resulting in an improvement in the performance of the motor.
    • 电动机包括圆柱形转子铁芯,轴向贯穿转子铁心的多个磁体,安装在转子铁芯两端的一对防分离板,以及至少一个固定部件,用于将防分离板固定到 转子芯。 固定构件包括沿转子芯的轴向方向延伸设置在转子芯的外圆周表面上的杆部分,以及从杆部两端弯曲并用于支撑防分离板的支撑部分。 分离防止板可以通过设置在转子芯的外周面上的固定构件固定到转子芯上。 固定构件没有阻碍磁体产生的磁通的流动的风险,导致电动机性能的提高。