公开(公告)号：US20070198766A1

公开(公告)日：2007-08-23

申请号：US11676847

申请日：2007-02-20

申请人： Makoto Mizukami ,  Shigeru Kinoshita ,  Shigeyuki Takagi

发明人： Makoto Mizukami ,  Shigeru Kinoshita ,  Shigeyuki Takagi

IPC分类号： G06F12/00

CPC分类号： H01L27/115 ,  G11C11/5628 ,  G11C16/0483 ,  H01L27/11521 ,  H01L27/11524

摘要： A semiconductor memory includes: a first memory cell transistor including: a first floating gate electrode provided on and insulated from the substrate; and a first control gate electrode provided on and insulated from the first floating gate electrode; and a second memory cell transistor including: a second floating gate electrode provided on and insulated from the substrate, an upper surface being larger than a lower surface, and the upper surface being lower than an upper surface of the first floating gate electrode; and a second control gate electrode provided on and insulated from the second floating gate electrode.

摘要翻译： 半导体存储器包括：第一存储单元晶体管，包括：设置在基板上并与基板绝缘的第一浮栅; 以及设置在所述第一浮栅上并与所述第一浮栅绝缘的第一控制栅极; 以及第二存储单元晶体管，包括：设置在所述基板上并与所述基板绝缘的第二浮栅，上表面大于下表面，并且所述上表面低于所述第一浮栅电极的上表面; 以及设置在第二浮栅上并与第二浮栅电极绝缘的第二控制栅电极。

公开(公告)号：US5598648A

公开(公告)日：1997-02-04

申请号：US671795

申请日：1991-09-09

申请人： Yukio Moriya ,  Shigeru Kinoshita ,  Takumi Onoda ,  Toshio Yokoyama

发明人： Yukio Moriya ,  Shigeru Kinoshita ,  Takumi Onoda ,  Toshio Yokoyama

IPC分类号： E02F3/43 ,  E02F9/22 ,  E12F3/32

CPC分类号： E02F3/437

摘要： The present invention is concerned with an apparatus for controlling a straight excavating operation with a hydraulic excavator such as a power shovel or the like machine including three working units, i.e., a boom, an arm and a bucket. When the straight excavating operation is performed, a hydraulic pressure of hydraulic oil in a hydraulic chamber on the boom lowering side of a boom cylinder is conducted to a drain tank while maintaining a predetermined set pressure, and a hydraulic pressure of hydraulic oil in a hydraulic chamber on the boom raising side of the boom cylinder is conducted to the drain tank via a check valve which serves to inhibit the hydraulic oil from flowing from the hydraulic chamber on the boom raising side of the boom cylinder to the drain tank, whereby the boom is held in the so-called floated state so as to enable a straight excavating operation to be performed merely by actuating the arm and bucket. In addition, according to the present invention, the apparatus is provided with an automatic bucket driving system for automatically controlling the present bucket angle so as to coincide with a preset bucket angle. This system contributes to remarkable reduction of a load to be borne by an operator while a straight excavating operation is performed.

摘要翻译： PCT No.PCT / JP90 / 00986 Sec。 371日期1991年9月9日 102（e）1991年9月9日PCT PCT 1990年8月2日PCT公布。 公开号WO91 / 02125 日期1991年2月21日本发明涉及一种用铲斗等机械的液压挖掘机进行直线挖掘操作的装置，该装置包括三个工作单元，即起重臂，臂和铲斗。 当进行直接挖掘操作时，在保持预定的设定压力的同时将动臂缸的动臂下降侧的液压室中的液压油的液压压力导向排水槽，并且液压油中的液压油的液压 动臂缸的悬臂升起侧的腔室通过止回阀传导到排水槽，该止回阀用于抑制液压油从动臂缸的动臂抬起侧的液压室流向排水箱，由此动臂 被保持在所谓的浮动状态，以便仅通过致动臂和铲斗才能进行直线挖掘操作。 此外，根据本发明，该装置设置有自动铲斗驱动系统，用于自动控制当前的铲斗角度以与预设的铲斗角度一致。 该系统在执行直线挖掘操作时有助于显着减少由操作者承担的负载。