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1. 发明申请

US20070217804A1 FIXING APPARATUS AND IMAGE FORMING APPARATUS INCLUDING THE SAME 有权
标题翻译：固定装置和图像形成装置，包括它们
公开(公告)号：US20070217804A1
公开(公告)日：2007-09-20
申请号：US11678076
申请日：2007-02-23
申请人： Toshiya MIKITA , Atsushi Ide , Kohji Aoki , Yasuhiro Takai
发明人： Toshiya MIKITA , Atsushi Ide , Kohji Aoki , Yasuhiro Takai
IPC分类号： G03G15/20
CPC分类号： G03G15/2039
摘要： In a fixing apparatus of the present invention, an end section fixing control temperature changing section selects an end section fixing control temperature in accordance with the number of paper sheets that have been processed in one continuous printing process. A sub-heater on/off determining section turns on or off a sub-heater in accordance with a temperature detected by an end section temperature sensor and the end section fixing control temperature selected by the end section fixing control temperature changing section. This prevents the occurrence of fixing failure even in continuous printing with respect to large-size paper sheets in an arrangement in which a temperature sensor is disposed outside a maximum-size sheet passing region at an end section of a fixing roller and controls energization of a heater which is disposed corresponding to the end section of the fixing roller in accordance with a temperature detected by the temperature sensor.
摘要翻译：在本发明的定影装置中，端部固定控制温度改变部根据在一个连续打印处理中已处理的纸张的数量来选择端部定影控制温度。副加热器开/关判定部根据由端部温度传感器检测的温度和由端部部分固定控制温度变化部选择的端部固定控制温度来开启或关闭副加热器。这样即使在将定影辊的端部处的温度传感器设置在最大尺寸的纸张通过区域之外的布置中，即使在大尺寸纸张的连续打印中也可防止发生定影故障，并且控制定影辊的通电加热器，其根据由温度传感器检测到的温度而对应于定影辊的端部设置。

2. 发明授权

US07570896B2 Fixing apparatus and image forming apparatus including the same 有权
标题翻译：固定装置和包括该固定装置的图像形成装置
公开(公告)号：US07570896B2
公开(公告)日：2009-08-04
申请号：US11678076
申请日：2007-02-23
申请人： Toshiya Mikita , Atsushi Ide , Kohji Aoki , Yasuhiro Takai
发明人： Toshiya Mikita , Atsushi Ide , Kohji Aoki , Yasuhiro Takai
IPC分类号： G03G15/20
CPC分类号： G03G15/2039
摘要： In a fixing apparatus of the present invention, an end section fixing control temperature changing section selects an end section fixing control temperature in accordance with the number of paper sheets that have been processed in one continuous printing process. A sub-heater on/off determining section turns on or off a sub-heater in accordance with a temperature detected by an end section temperature sensor and the end section fixing control temperature selected by the end section fixing control temperature changing section. This prevents the occurrence of fixing failure even in continuous printing with respect to large-size paper sheets in an arrangement in which a temperature sensor is disposed outside a maximum-size sheet passing region at an end section of a fixing roller and controls energization of a heater which is disposed corresponding to the end section of the fixing roller in accordance with a temperature detected by the temperature sensor.
摘要翻译：在本发明的定影装置中，端部固定控制温度改变部根据在一个连续打印处理中已处理的纸张的数量来选择端部定影控制温度。副加热器开/关判定部根据由端部温度传感器检测的温度和由端部部分固定控制温度变化部选择的端部固定控制温度来开启或关闭副加热器。这样即使在将定影辊的端部处的温度传感器设置在最大尺寸的纸张通过区域之外的布置中，即使在大尺寸纸张的连续打印中也可防止发生定影故障，并且控制定影辊的通电加热器，其根据由温度传感器检测到的温度而对应于定影辊的端部设置。

3. 发明授权

US07519306B2 Fixing apparatus and image forming apparatus including priority temperature control 有权
标题翻译：包括优先温度控制的固定装置和图像形成装置
公开(公告)号：US07519306B2
公开(公告)日：2009-04-14
申请号：US11679219
申请日：2007-02-27
申请人： Noriko Inoue , Atsushi Ide , Kohji Aoki , Yasuhiro Takai
发明人： Noriko Inoue , Atsushi Ide , Kohji Aoki , Yasuhiro Takai
IPC分类号： G03G15/20
CPC分类号： G03G15/2039
摘要： A fixing control section of a fixing apparatus according to the present invention includes an end section priority temperature control mode. In the end section priority temperature control mode, the fixing control section temporarily turns off a main heater heating a center section of a fixing roller among a plurarity of heaters disposed inside the fixing roller in a case where a surface temperature of the end section of the fixing roller has reached a preset upper-limit fixing temperature, even if the surface temperature of the center section of the fixing roller is lower than a preset fixing temperature. As a result, destruction of the fixing roller can be prevented by a simple arrangement in the fixing apparatus which includes a plurarity of the heaters disposed inside the fixing roller.
摘要翻译：根据本发明的定影装置的定影控制部分包括端部优先温度控制模式。在端部优先温度控制模式中，定影控制部临时关闭加热设置在定影辊内部的多个加热器中的定影辊的中心部分的主加热器，即使定影辊的中心部分的表面温度低于预设的定影温度，定影辊也达到预定的上限定影温度。结果，通过在定影装置中简单的布置来防止定影辊的破坏，该定影装置包括设置在定影辊内部的加热器的多次。

4. 发明申请

US20070217805A1 FIXING APPARATUS AND IMAGE FORMING APPARATUS INCLUDING THE SAME 有权
标题翻译：固定装置和图像形成装置，包括它们
公开(公告)号：US20070217805A1
公开(公告)日：2007-09-20
申请号：US11679219
申请日：2007-02-27
申请人： Noriko INOUE , Atsushi Ide , Kohji Aoki , Yasuhiro Takai
发明人： Noriko INOUE , Atsushi Ide , Kohji Aoki , Yasuhiro Takai
IPC分类号： G03G15/20
CPC分类号： G03G15/2039
摘要： A fixing control section of a fixing apparatus according to the present invention includes an end section priority temperature control mode. In the end section priority temperature control mode, the fixing control section temporarily turns off a main heater heating a center section of a fixing roller among a plurarity of heaters disposed inside the fixing roller in a case where a surface temperature of the end section of the fixing roller has reached a preset upper-limit fixing temperature, even if the surface temperature of the center section of the fixing roller is lower than a preset fixing temperature. As a result, destruction of the fixing roller can be prevented by a simple arrangement in the fixing apparatus which includes a plurarity of the heaters disposed inside the fixing roller.
摘要翻译：根据本发明的定影装置的定影控制部分包括端部优先温度控制模式。在端部优先温度控制模式中，定影控制部临时关闭加热设置在定影辊内部的多个加热器中的定影辊的中心部分的主加热器，即使定影辊的中心部分的表面温度低于预设的定影温度，定影辊也达到预定的上限定影温度。结果，通过在定影装置中简单的布置来防止定影辊的破坏，该定影装置包括设置在定影辊内部的加热器的多次。

5. 发明授权

US07609984B2 Fixing device 有权
标题翻译：固定装置
公开(公告)号：US07609984B2
公开(公告)日：2009-10-27
申请号：US11624725
申请日：2007-01-19
申请人： Kohji Aoki , Toyoaki Nanba , Yoshinobu Tateishi , Yasuhiro Takai
发明人： Kohji Aoki , Toyoaki Nanba , Yoshinobu Tateishi , Yasuhiro Takai
IPC分类号： G03G15/20
CPC分类号： G03G15/2039
摘要： The fixing device includes a pair of rotating bodies which conveys a recording medium between a nip; a heating unit which heats at least one of the rotating bodies; and a temperature detection unit which detects a temperature of at least one of the rotating bodies. The temperature detection unit detects a temperature change until an image forming apparatus is normally operated since the heating unit starts the heating, and the temperature change is stored. It is judged that the image forming apparatus is in an abnormal state when the temperature detection unit detects a temperature change different from the temperature change in the normal operation. A temperature control unit stops passage of current through the heating unit when it is judged that the image forming apparatus is in the abnormal state.
摘要翻译：定影装置包括：一对旋转体，其在辊隙之间传送记录介质; 加热单元，其加热所述旋转体中的至少一个; 以及温度检测单元，其检测至少一个旋转体的温度。由于加热单元开始加热，温度检测单元检测到图像形成装置正常操作之前的温度变化，并且存储温度变化。当温度检测单元检测到与正常操作中的温度变化不同的温度变化时，判断图像形成装置处于异常状态。当判断图像形成装置处于异常状态时，温度控制单元停止通过加热单元的电流。

6. 发明授权

US07944262B2 Duty correction circuit 有权
标题翻译：负责校正电路
公开(公告)号：US07944262B2
公开(公告)日：2011-05-17
申请号：US12453652
申请日：2009-05-18
申请人： Koji Kuroki , Yasuhiro Takai
发明人： Koji Kuroki , Yasuhiro Takai
IPC分类号： H03K3/017
CPC分类号： H03K5/1565
摘要： A duty correction circuit is formed using at least one delay circuit, which is constituted of a first inverter including three transistors of different conduction types and a second inverter including three other transistors of different conduction types and which delays and adjusts an input clock signal at the leading-edge/trailing-edge timing so as to convert it into an output clock signal based on a first or second bias voltage produced by a bias circuit detecting the duty ratio of the output clock signal. The duty correction circuit decreases the high-level period of the output clock signal having a high duty ratio based on the first bias voltage. Alternatively, the duty correction circuit increases the high-level period of the output clock signal having a low duty ratio based on the second bias voltage.
摘要翻译：使用至少一个延迟电路形成占空比校正电路，所述至少一个延迟电路由包括三个不同导电类型的晶体管的第一反相器和包括不同导通类型的三个其它晶体管的第二反相器组成，并且其延迟并调整在前沿/后沿定时，以便基于由检测输出时钟信号的占空比的偏置电路产生的第一或第二偏置电压将其转换为输出时钟信号。占空比校正电路基于第一偏置电压降低具有高占空比的输出时钟信号的高电平周期。或者，占空比校正电路基于第二偏置电压增加具有低占空比的输出时钟信号的高电平周期。

7. 发明授权

US07772911B2 Timing control circuit and semiconductor storage device 有权
标题翻译：定时控制电路和半导体存储设备
公开(公告)号：US07772911B2
公开(公告)日：2010-08-10
申请号：US12208978
申请日：2008-09-11
申请人： Akira Ide , Yasuhiro Takai , Tomonori Sekiguchi , Riichiro Takemura , Satoru Akiyama , Hiroaki Nakaya
发明人： Akira Ide , Yasuhiro Takai , Tomonori Sekiguchi , Riichiro Takemura , Satoru Akiyama , Hiroaki Nakaya
IPC分类号： G06F1/04
CPC分类号： H03K5/135 , G11C7/04 , G11C7/1072 , G11C7/222 , G11C11/4076 , G11C19/00
摘要： Disclosed is a timing control circuit that receives a first clock having a period T1, a group of second clocks of L different phases spaced apart from each other at substantially equal intervals and selection signals m, n supplied thereto and generates a fine timing signal delayed from the rising edge of the first clock signal by a delay td of approximately td=m·T1+n·(T2/L). The timing control circuit includes a coarse delay circuit and a fine delay circuit. The coarse delay circuit includes a counter for counting a rising edge of the first clock signal after an activate signal is activated and generates a coarse timing signal whose amount of delay from the first clock signal is approximately m·T1. The fine delay circuit comprises L-number of multiphase clock control delay circuits disposed in parallel, delays by n·T2/L the timing of sampling of the coarse timing signal by respective clocks of the group of L-phase second clocks, and takes the OR among the resulting delayed pulses to thereby produce the fine timing signal.
摘要翻译：公开了一种定时控制电路，其接收具有周期T1的第一时钟，以相等间隔彼此间隔开的L个不同相位的一组第二时钟，以及提供给其的选择信号m，n，并产生从第一时钟信号的上升沿大约为td = m·T1 + n·（T2 / L）的延迟td。定时控制电路包括粗延迟电路和精细延迟电路。粗略延迟电路包括用于在激活信号被激活之后对第一时钟信号的上升沿进行计数的计数器，并产生其第一时钟信号的延迟量大约为m·T1的粗略定时信号。精细延迟电路包括L个并联设置的多相时钟控制延迟电路，通过n·T2 / L延迟由L组第二时钟组的相应时钟对粗略定时信号进行采样的定时，或者产生延迟脉冲，从而产生精细定时信号。

8. 发明授权

US07734243B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US07734243B2
公开(公告)日：2010-06-08
申请号：US11336901
申请日：2006-01-23
申请人： Toshiki Takiguchi , Kouji Wakamoto , Tatsuya Inoue , Yasuhiro Takai
发明人： Toshiki Takiguchi , Kouji Wakamoto , Tatsuya Inoue , Yasuhiro Takai
IPC分类号： G03G15/00
CPC分类号： G03G15/5008
摘要： In an image forming apparatus of the present invention, an idle roller once stops rotating when a front edge of a sheet conveyed reaches the idle roller. The idle roller restarts rotating at such a timing that a front edge of a toner image on a photoreceptor and a front edge of an image writing position on the sheet are aligned with each other. Then, even if a rear edge of the sheet is still in the idle roller, the idle roller stops rotating when the front edge of the sheet is sandwiched between a transfer roller and the photoreceptor. By carrying out such operations, it is possible to avoid by a very simple way an occurrence of a slip phenomenon that is a phenomenon of slipping of the sheet with respect to the photoreceptor while suppressing a reduction in image quality as much as possible. In addition, it is also possible to surely secure a blank space formed at a rear edge portion of the sheet.
摘要翻译：在本发明的图像形成装置中，当传送的纸张的前缘到达空转辊时，空转辊一次停止旋转。空转辊重新开始旋转，使得感光体上的调色剂图像的前边缘和片材上的图像书写位置的前边缘彼此对准。然后，即使片材的后边缘仍然在空转辊中，当片材的前边缘夹在转印辊和感光体之间时，空转辊停止旋转。通过进行这种操作，可以通过非常简单的方式避免出现作为尽可能多地抑制图像质量降低的片材相对于感光体的现象的滑动现象。此外，还可以确保形成在片材的后边缘部分处的空白空间。

9. 发明授权

US07688655B2 Semiconductor memory device and test method therefor 失效
标题翻译：半导体存储器件及其测试方法
公开(公告)号：US07688655B2
公开(公告)日：2010-03-30
申请号：US11747552
申请日：2007-05-11
申请人： Yasuhiro Takai
发明人： Yasuhiro Takai
IPC分类号： G11C29/00
CPC分类号： G11C29/50016 , G11C11/401 , G11C11/406 , G11C11/40622 , G11C29/14
摘要： Disclosed is a semiconductor memory device, in which the refresh period of a fail cell or cells is set so as to be shorter than that of the normal cells, comprises a control circuit for exercising control in such a manner that, if, when refreshing the cell of a first address, generated responsive to a refresh command, with an input control signal being of a first value, a second address, differing as to the value of a predetermined bit from the first address, is determined to correspond to a fail cell, based on the information ore-programmed in a refresh redundant ROM, the cell of the second address is refreshed, and also in such a manner that, if, with the input control signal of a second value, the second address, differing as to the value of a predetermined bit from the first address, is determined to correspond to a fail cell, based on the predetermined information, only the cell of the second address is refreshed, without refreshing the cell of the first address, generated responsive to the refresh command.
摘要翻译：公开了一种半导体存储器件，其中将故障单元或单元的刷新周期设置为短于正常单元的刷新周期，包括用于以这样的方式进行控制的控制电路，即如果在刷新被确定为响应于刷新命令产生的第一地址的单元，其中输入控制信号是第一值，对于来自第一地址的预定位不同的第二地址被确定为对应于故障单元基于在刷新冗余ROM中编程的信息，第二地址的单元被刷新，并且还以这样的方式，如果利用第二值的输入控制信号，第二地址不同于来自第一地址的预定比特的值被确定为对应于故障小区，基于预定信息，仅刷新第二地址的小区，而不刷新第一地址的小区，生成的响应刷新命令。

10. 发明申请

US20090289676A1 DLL circuit 有权
标题翻译： DLL电路
公开(公告)号：US20090289676A1
公开(公告)日：2009-11-26
申请号：US12453764
申请日：2009-05-21
申请人： Yasuhiro Takai
发明人： Yasuhiro Takai
IPC分类号： H03L7/06 , H03L7/00
CPC分类号： H03L7/0814 , H03K5/13 , H03K5/133 , H03K2005/00052 , H03L7/0818
摘要： A DLL circuit includes a coarse delay adjustment circuit and a fine delay adjustment circuit, which further includes a first fine delay circuit and a second fine delay circuit serving as an interpolation circuit. The coarse delay adjustment circuit delays a reference clock signal by a plurality of delay stages so as to provide the first fine delay circuit with two phase signals having the phase difference of two delay stages, which are then converted into two delay signals having the phase difference of one delay stage. The delay signals are subjected to interpolation, thus producing an output clock signal. Due to a reduction of the phase difference in the first fine delay circuit, it is possible to reduce the minimum operation cycle of the interpolation circuit and to thereby increase the maximum operation frequency of the DLL circuit.
摘要翻译： DLL电路包括粗延迟调整电路和精细延迟调整电路，其还包括作为内插电路的第一精细延迟电路和第二精细延迟电路。粗延迟调整电路通过多个延迟级对参考时钟信号进行延时，以向第一精细延迟电路提供具有两个延迟级的相位差的两个相位信号，然后将其转换成具有相位差的两个延迟信号一个延迟阶段。对延迟信号进行内插，从而产生输出时钟信号。由于第一精细延迟电路中的相位差减小，可以减小内插电路的最小工作周期，从而增加DLL电路的最大工作频率。

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