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21. 发明授权

US10761470B2 Printing apparatus and light-emitting element driving device 有权
公开(公告)号：US10761470B2
公开(公告)日：2020-09-01
申请号：US16560884
申请日：2019-09-04
申请人： CANON KABUSHIKI KAISHA
发明人： Wataru Endo , Masanobu Ohmura , Hirotaka Shiomichi
IPC分类号： G03G15/04 , G03G15/00
摘要： A printing apparatus is provided. The apparatus comprises a light-emitting element, a light-receiving element including a first terminal and a second terminal, a reference current generator supplying a reference current, a comparator comparing a monitor current with the reference current, the light-receiving element supplying the monitor current to the second terminal in accordance with a light emission amount, a driver driving the light-emitting element based on an output of the comparator, and a reference voltage controller. The comparator includes a first input terminal connected to the second terminal and a second input terminal. The reference voltage controller supplies a reference voltage selected from at least two voltage values to the second input terminal, and to control the voltage of the second terminal to be a voltage according to the reference voltage.

22. 发明授权

US09205649B1 Discharge element substrate, recording head, and recording apparatus 有权
标题翻译：放电元件基板，记录头和记录装置
公开(公告)号：US09205649B1
公开(公告)日：2015-12-08
申请号：US14699497
申请日：2015-04-29
申请人： CANON KABUSHIKI KAISHA
发明人： Wataru Endo , Masanobu Ohmura , Kazunari Fujii , Tatsuhito Goden
IPC分类号： B41J2/14 , B41J2/16 , B41J2/045
CPC分类号： B41J2/14 , B41J2/04541 , B41J2/04543 , B41J2/0458
摘要： A substrate includes first and second power supply lines, and units. Each unit includes common transistor, discharge elements and individual transistors. One of source and drain of the common transistor is connected to the first power supply line, first nodes of the discharge elements are connected to other of the source and drain, one of source and drain of each individual transistor is connected to a second node of the discharge element, the other is connected to the second power supply line. Channel of the common transistor is wider than those of the individual transistors. Arrangement direction of the units and arrangement direction of the discharge elements are first direction, the first and second power supply lines extend in the first direction, and the second power supply line is wider than that of the first power supply line.
摘要翻译：基板包括第一和第二电源线以及单元。每个单元包括公共晶体管，放电元件和单独的晶体管。公共晶体管的源极和漏极之一连接到第一电源线，放电元件的第一节点连接到源极和漏极中的另一个，每个单独晶体管的源极和漏极中的一个连接到第二节点放电元件，另一个连接到第二电源线。公共晶体管的沟道比各个晶体管的沟道宽。单元的布置方向和放电元件的布置方向是第一方向，第一和第二电源线在第一方向上延伸，并且第二电源线比第一电源线宽。

23. 发明申请

US20150328888A1 DISCHARGE ELEMENT SUBSTRATE, RECORDING HEAD, AND RECORDING APPARATUS 有权
标题翻译：放电元件基板，记录头和记录装置
公开(公告)号：US20150328888A1
公开(公告)日：2015-11-19
申请号：US14699497
申请日：2015-04-29
申请人： CANON KABUSHIKI KAISHA
发明人： Wataru Endo , Masanobu Ohmura , Kazunari Fujii , Tatsuhito Goden
IPC分类号： B41J2/14
CPC分类号： B41J2/14 , B41J2/04541 , B41J2/04543 , B41J2/0458
摘要： A substrate includes first and second power supply lines, and units. Each unit includes common transistor, discharge elements and individual transistors. One of source and drain of the common transistor is connected to the first power supply line, first nodes of the discharge elements are connected to other of the source and drain, one of source and drain of each individual transistor is connected to a second node of the discharge element, the other is connected to the second power supply line. Channel of the common transistor is wider than those of the individual transistors. Arrangement direction of the units and arrangement direction of the discharge elements are first direction, the first and second power supply lines extend in the first direction, and the second power supply line is wider than that of the first power supply line.
摘要翻译：基板包括第一和第二电源线以及单元。每个单元包括公共晶体管，放电元件和单独的晶体管。公共晶体管的源极和漏极之一连接到第一电源线，放电元件的第一节点连接到源极和漏极中的另一个，每个单独晶体管的源极和漏极中的一个连接到第二节点放电元件，另一个连接到第二电源线。公共晶体管的沟道比各个晶体管的沟道宽。单元的布置方向和放电元件的布置方向是第一方向，第一和第二电源线在第一方向上延伸，并且第二电源线比第一电源线宽。

24. 发明授权

US09022497B2 Printing element substrate, printhead, and printing apparatus 有权
标题翻译：打印元件基板，打印头和打印设备
公开(公告)号：US09022497B2
公开(公告)日：2015-05-05
申请号：US14319073
申请日：2014-06-30
申请人： Canon Kabushiki Kaisha
发明人： Wataru Endo , Makoto Takagi , Masanobu Ohmura
IPC分类号： B41J29/38 , B41J2/015 , B41J2/045
CPC分类号： B41J2/0455 , B41J2/0458
摘要： A printing element substrate, comprising a printing element, a MOS transistor having a drain terminal, a source terminal and a back gate terminal, the drain terminal being connected to a first power supply node for receiving a first voltage, and a source terminal and a back gate terminal being connected to the printing element, and a unit including a second power supply node different from the first power supply node, and configured to supply a second voltage to a gate terminal of the MOS transistor, wherein, when the first voltage is not supplied to the first power supply node, the unit controls a potential of at least one of the gate terminal and the drain terminal so that a potential difference between the gate terminal and the drain terminal becomes lower than the second voltage.
摘要翻译：一种印刷元件基板，包括印刷元件，具有漏极端子的MOS晶体管，源极端子和背栅极端子，所述漏极端子连接到用于接收第一电压的第一电源节点，以及源极端子和背栅极端子连接到打印元件，以及包括与第一电源节点不同的第二电源节点的单元，并且被配置为向MOS晶体管的栅极端子提供第二电压，其中，当第一电压为不提供给第一电源节点，该单元控制栅极端子和漏极端子中的至少一个的电位，使得栅极端子和漏极端子之间的电位差变得低于第二电压。

25. 发明申请

US20150029246A1 PRINTING ELEMENT SUBSTRATE, PRINTHEAD, AND PRINTING APPARATUS 有权
标题翻译：打印元件基板，打印头和打印设备
公开(公告)号：US20150029246A1
公开(公告)日：2015-01-29
申请号：US14319073
申请日：2014-06-30
申请人： CANON KABUSHIKI KAISHA
发明人： Wataru Endo , Makoto Takagi , Masanobu Ohmura
IPC分类号： B41J2/045
CPC分类号： B41J2/0455 , B41J2/0458
摘要： A printing element substrate, comprising a printing element, a MOS transistor having a drain terminal, a source terminal and a back gate terminal, the drain terminal being connected to a first power supply node for receiving a first voltage, and a source terminal and a back gate terminal being connected to the printing element, and a unit including a second power supply node different from the first power supply node, and configured to supply a second voltage to a gate terminal of the MOS transistor, wherein, when the first voltage is not supplied to the first power supply node, the unit controls a potential of at least one of the gate terminal and the drain terminal so that a potential difference between the gate terminal and the drain terminal becomes lower than the second voltage.
摘要翻译：一种印刷元件基板，包括印刷元件，具有漏极端子的MOS晶体管，源极端子和背栅极端子，所述漏极端子连接到用于接收第一电压的第一电源节点，以及源极端子和背栅极端子连接到打印元件，以及包括与第一电源节点不同的第二电源节点的单元，并且被配置为向MOS晶体管的栅极端子提供第二电压，其中，当第一电压为不提供给第一电源节点，该单元控制栅极端子和漏极端子中的至少一个的电位，使得栅极端子和漏极端子之间的电位差变得低于第二电压。

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