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1. 发明授权

US6123329A Paper feeder and paper tray elevation device therefor 有权
标题翻译：供纸盒和纸盒升降装置
公开(公告)号：US6123329A
公开(公告)日：2000-09-26
申请号：US151351
申请日：1998-09-10
申请人： Mitsuo Sato , Hidetoshi Aizawa , Kenji Endo , Naoki Ashikaya , Kiyohiko Yakuwa , Masayuki Shima
发明人： Mitsuo Sato , Hidetoshi Aizawa , Kenji Endo , Naoki Ashikaya , Kiyohiko Yakuwa , Masayuki Shima
IPC分类号： B41L13/04 , B65H1/14 , B65H1/26 , B65H1/28 , B65H1/30 , B65H3/44 , G03G15/00
CPC分类号： B65H1/266 , B65H1/14 , B65H3/446 , B65H2801/21 , G03G2215/00447
摘要： A paper feeder for feeding papers to an image forming apparatus and a paper tray elevation device therefore are disclosed. A first tray is movable up and down with a plurality of papers stacked thereon. A paper feed member feeds the papers from the first tray in a preselected direction of paper feed. A second tray is positioned beside the first tray in substantially the horizontal direction and movable up and down with a plurality of papers stacked thereon. A shifting device shifts the entire paper stack from the second tray to the first tray. A horizontal elevating mechanism elevates the first tray while maintaining it in substantially the horizontal position. An interlocking mechanism at least elevates, when papers of greater in size than the papers to be stacked on the first or second tray are stacked over the first and second trays in a single stack, the second tray in interlocked relation to the elevation of the first tray while maintaining the second tray in substantially the horizontal position. The papers of greater size are capable of being stacked over the first and second trays and fed by the paper feed member.
摘要翻译：因此，公开了一种用于将纸张馈送到图像形成装置和纸盘升降装置的供纸器。第一托盘可堆叠在其上的多个纸张上下移动。供纸构件沿着预选的进纸方向从第一托盘供纸。第二托盘位于第一托盘的大致水平方向旁边，并且可堆叠在其上的多个纸张上下移动。换档装置将整个纸叠从第二托盘移动到第一托盘。水平升降机构使第一托盘升起，同时使其保持在大致水平位置。当互相重叠的纸张尺寸大于堆叠在第一或第二托盘上的纸张在单堆叠中堆叠在第一和第二托盘上时，互锁机构至少升高，第二托盘与第一托盘的高度互锁托盘，同时将第二托盘保持在基本上水平的位置。较大尺寸的纸能够堆叠在第一和第二托盘上并由进纸构件供给。

2. 发明授权

US5438347A Master making device for a stencil printer 失效
标题翻译：模具打印机的主制造设备
公开(公告)号：US5438347A
公开(公告)日：1995-08-01
申请号：US63609
申请日：1993-05-19
申请人： Kamichika Shishido , Hidetoshi Aizawa
发明人： Kamichika Shishido , Hidetoshi Aizawa
IPC分类号： B41L13/14 , B41C1/14 , B41L13/06 , B41L29/16 , B41J2/325
CPC分类号： B41L29/16 , B41C1/144 , B41L13/06
摘要： A master making device incorporated in a stencil printer. The operation for feeding the leading edge of a web or stencil toward a master clamper provided on a print drum is assigned to a platen roller. When the web is to be wrapped around the print drum, the operation for causing the web to form a slack and the operation for applying a tension to the web are implemented only by a tension member which selectively blocks or unblocks a web passageway.
摘要翻译：装在模板打印机中的主制造装置。用于将幅材或模板的前缘向设置在打印鼓上的主夹持器供给的操作被分配给压纸辊。当卷筒纸围绕印刷鼓卷绕时，用于使卷筒纸形成松弛的操作以及向纸幅施加张力的操作仅由选择性地阻挡或解开卷筒纸通道的张紧部件来实现。

3. 发明授权

US5424937A Gate drive power source for electric power converter 失效
标题翻译：电力转换器的栅极驱动电源
公开(公告)号：US5424937A
公开(公告)日：1995-06-13
申请号：US073392
申请日：1993-06-09
申请人： Ryuji Iyotani , Akiteru Ueda , Hiroshi Narita , Mitsuyuki Hombu , Hidetoshi Aizawa
发明人： Ryuji Iyotani , Akiteru Ueda , Hiroshi Narita , Mitsuyuki Hombu , Hidetoshi Aizawa
IPC分类号： H02J7/34 , H02M1/08 , H02M1/088 , H02M7/757 , H03K17/00 , H03K17/0814 , H02M7/521
CPC分类号： H03K17/08144 , H02M1/08 , H02M1/088 , H03K2217/0036 , H03K2217/0081
摘要： An electric power converter comprising a plurality of reactors, a plurality of self quenching type switching elements, the reactors and switching elements being series-connected per one arm, and surge-absorbing snubber circuits connected in parallel to the switching elements respectively, the switching circuits being driven by gate drive circuits connected to respective gates of the switching elements to thereby convert a DC voltage into an AC voltage or convert an AC voltage into a DC voltage. The electric power converter further comprises: an apparatus for recovering energy accumulated on at least one side of the reactors and the snubber circuits and an apparatus for generating a DC source for supplying electric power to each of the gate drive circuits, on the basis of the recovered energy. In the electric power converter constituted by a plurality of self quenching type semiconductor switching elements connected in series, high efficiency is attained through reduction in size of the gate driver and electric power saving.
摘要翻译：一种电力转换器，包括多个反应器，多个自熄型开关元件，每个臂串联连接的电抗器和开关元件以及分别与开关元件并联连接的浪涌吸收缓冲电路，开关电路由连接到开关元件的各个栅极的栅极驱动电路驱动，从而将DC电压转换为AC电压或将AC电压转换为DC电压。电力转换器还包括：用于回收积聚在电抗器的至少一侧的能量的装置和缓冲电路，以及用于产生用于向每个栅极驱动电路提供电力的DC源的装置，恢复能量。在由串联连接的多个自熄型半导体开关元件构成的电力转换器中，通过减小栅极驱动器的尺寸和节省电力来实现高效率。

4. 发明授权

US4455599A Pulse width modulation inverter 失效
标题翻译：脉宽调制逆变器
公开(公告)号：US4455599A
公开(公告)日：1984-06-19
申请号：US365598
申请日：1982-04-05
申请人： Kaoru Tamura , Hidetoshi Aizawa
发明人： Kaoru Tamura , Hidetoshi Aizawa
IPC分类号： H02M7/48 , H02M7/527 , H02M1/06
CPC分类号： H02M7/527 , H02M7/5155
摘要： A pulse width modulation inverter loaded with a three-phase AC motor is halted when a logical condition exists that a halt signal has been given and all of pulse width modulation signals applied to either three positive side or three negative side main thyristors in a three-phase bridge connection constituting the inverter are in their high level states.
摘要翻译：当存在已经给出停止信号的逻辑条件并且施加到三相交流电动机中的三个正侧或三个负侧主晶闸管的全部脉宽调制信号时，装载有三相交流电动机的脉宽调制逆变器停止，构成逆变器的相桥连接处于高电平状态。

5. 发明授权

US06305281B1 Stencil printer having controller for discharge tray and master making means 失效
标题翻译：模板印刷机具有用于排出托盘和主制造装置的控制器
公开(公告)号：US06305281B1
公开(公告)日：2001-10-23
申请号：US09401840
申请日：1999-09-22
申请人： Hidetoshi Aizawa
发明人： Hidetoshi Aizawa
IPC分类号： B41L1304
CPC分类号： B41L13/06
摘要： A stencil printer includes a document size sensing device for sensing the size of a document and a paper size sensing device for sensing the size of papers. A controller determines the orientation and size of the document and those of the paper on the basis of information output from the two sensing devices. If the document and paper are different in orientation, the controller controls a master making section on the basis of the orientation of the papers for forming a document image in a master in accordance with the orientation of the paper. At the same time, the controller controls a side fence moving device and an end fence moving device such that side fences and an end fence mounted on a paper discharge tray each are located at a particular position matching with the size of the papers. The side fences are movable in the widthwise direction of the paper while the end fence is movable forward and backward in the direction of paper discharge.
摘要翻译：模版印刷机包括用于感测文件尺寸的文件尺寸感测装置和用于感测纸张尺寸的纸张尺寸感测装置。控制器基于从两个感测装置输出的信息来确定文档和纸张的方向和尺寸。如果文件和纸张的方向不同，则控制器根据纸张的方向，基于用于在母版中形成文档图像的纸张的方向来控制主制造部分。同时，控制器控制侧挡板移动装置和挡板移动装置，使得安装在排纸托盘上的侧围栏和端栏围绕位于与纸张尺寸相匹配的特定位置。侧围栏可以在纸张的宽度方向上移动，而挡板可沿纸张排出方向前后移动。

6. 发明授权

US06490182B2 Power conversion apparatus 有权
标题翻译：电力转换装置
公开(公告)号：US06490182B2
公开(公告)日：2002-12-03
申请号：US09972981
申请日：2001-10-10
申请人： Shuji Katoh , Hiromitsu Sakai , Shigeta Ueda , Tomomichi Ito , Hidetoshi Aizawa
发明人： Shuji Katoh , Hiromitsu Sakai , Shigeta Ueda , Tomomichi Ito , Hidetoshi Aizawa
IPC分类号： H02H7122
CPC分类号： H03K17/0828 , H02M1/32 , H02M7/5387 , H02M2001/0048 , H03K17/168 , Y02B70/1491
摘要： A semiconductor electric power converter in accordance with the present invention comprises an arm consisting of an IGBT, a capacitor connected between a collector and a gate of said IGBT, and a gate circuit connected to the gate of said IGBT for controlling the switching operation of said IGBT, wherein a plurality of said arms connected in series are connected in parallel and each midpoint of said arms connected in of series is connected to a load. Thereby the impedance between the gate terminal of the IGBT and the gate circuit is decreased when the gate voltage is higher than the gate voltage command value or the impedance between the gate and the emitter of the IGBT is decreased when the collector voltage is high so that an electric charge stored in the gate is rapidly discharged.
摘要翻译：根据本发明的半导体电力转换器包括由IGBT组成的臂，连接在所述IGBT的集电极和栅极之间的电容器，以及连接到所述IGBT的栅极的栅极电路，用于控制所述IGBT的开关操作 IGBT，其中串联连接的多个所述臂并联连接，并且串联连接的所述臂的每个中点连接到负载。因此，当栅极电压高于栅极电压指令值时，IGBT的栅极端子与栅极电路之间的阻抗降低，或者当集电极电压高时IGBT的栅极和发射极之间的阻抗降低，从而存储在门中的电荷被快速排出。

7. 发明授权

US06380796B2 Semiconductor power converting apparatus 失效
标题翻译：半导体电力转换装置
公开(公告)号：US06380796B2
公开(公告)日：2002-04-30
申请号：US09838470
申请日：2001-04-20
申请人： Hiromitsu Sakai , Hidetoshi Aizawa , Shuji Katoh , Ryuji Iyotani , Masahiro Nagasu
发明人： Hiromitsu Sakai , Hidetoshi Aizawa , Shuji Katoh , Ryuji Iyotani , Masahiro Nagasu
IPC分类号： H03K17687
CPC分类号： H02M1/08 , H03K4/00 , H03K17/166 , H03K17/168
摘要： A semiconductor power converting apparatus includes a semiconductor element for controlling a current flowing between a collector and an emitter in response to a gate condition, a driving device connected to the gate, for driving the gate in response to a drive signal entered thereinto, a voltage applying device for applying both a forward bias and a reverse bias to the gate so as to set the emitter of the semiconductor element to a neutral potential, and a voltage dividing device for dividing a voltage appearing between the collector and the emitter of the semiconductor element, in which the drive signal is under OFF state, a voltage produced based upon the divided voltage by the voltage dividing device is applied to the gate, and the gate voltage is controlled in response to the voltage appearing between the collector and the emitter of the semiconductor element, thereby reducing the snubbed loss.
摘要翻译：半导体功率转换装置包括：半导体元件，用于响应于栅极条件控制在集电极和发射极之间流动的电流;连接到栅极的驱动装置，用于响应输入的驱动信号驱动栅极;电压施加装置，用于向栅极施加正向偏压和反向偏压，以将半导体元件的发射极设置为中性电位;以及分压装置，用于分割半导体元件的集电极和发射极之间的电压，其中驱动信号处于OFF状态，将通过分压装置分压的电压产生的电压施加到栅极，并且响应于集电极和发射极之间出现的电压来控制栅极电压半导体元件，从而减少缓冲损耗。

8. 发明授权

US06242968B1 Semiconductor power converting apparatus 有权
标题翻译：半导体电力转换装置
公开(公告)号：US06242968B1
公开(公告)日：2001-06-05
申请号：US09642816
申请日：2000-08-22
申请人： Hiromitsu Sakai , Hidetoshi Aizawa , Shuji Katoh , Ryuji Iyotani , Masahiro Nagasu
发明人： Hiromitsu Sakai , Hidetoshi Aizawa , Shuji Katoh , Ryuji Iyotani , Masahiro Nagasu
IPC分类号： H03K17687
CPC分类号： H02M1/08 , H03K4/00 , H03K17/166 , H03K17/168
摘要： A semiconductor power converting apparatus includes a semiconductor element for controlling a current flowing between a collector and an emitter in response to a gate condition, a driving device connected to the gate, for driving the gate in response to a drive signal entered thereinto, a voltage applying device for applying both a forward bias and a reverse bias to the gate so as to set the emitter of the semiconductor element to a neutral potential, and a voltage dividing device for dividing a voltage appearing between the collector and the emitter of the semiconductor element, in which the drive signal is under OFF state, a voltage produced based upon the divided voltage by the voltage dividing device is applied to the gate, and the gate voltage is controlled in response to the voltage appearing between the collector and the emitter of the semiconductor element, thereby reducing the snubbed loss.
摘要翻译：半导体功率转换装置包括：半导体元件，用于响应于栅极条件控制在集电极和发射极之间流动的电流;连接到栅极的驱动装置，用于响应输入的驱动信号驱动栅极;电压施加装置，用于向栅极施加正向偏压和反向偏压，以将半导体元件的发射极设置为中性电位;以及分压装置，用于分割半导体元件的集电极和发射极之间的电压，其中驱动信号处于OFF状态，将通过分压装置分压的电压产生的电压施加到栅极，并且响应于集电极和发射极之间出现的电压来控制栅极电压半导体元件，从而减少缓冲损耗。

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