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11. 发明授权

US08983318B2 Image forming apparatus with a density sensor for detecting density fluctuations 有权
标题翻译：具有用于检测浓度波动的密度传感器的图像形成装置
公开(公告)号：US08983318B2
公开(公告)日：2015-03-17
申请号：US13843147
申请日：2013-03-15
申请人： Atsufumi Omori , Masaaki Ishida , Kazuhiro Akatsu , Muneaki Iwata , Hayato Fujita
发明人： Atsufumi Omori , Masaaki Ishida , Kazuhiro Akatsu , Muneaki Iwata , Hayato Fujita
IPC分类号： G03G15/00
CPC分类号： G03G15/556 , G03G15/5058
摘要： An image forming apparatus is disclosed, including a light source; a drum; an optical scanning apparatus; and an endless belt. The image forming apparatus further includes a pattern forming unit which forms, on the endless belt along a conveying direction of the endless belt, a density fluctuation detecting pattern having a period; a density sensor which detects the density fluctuating detecting pattern and outputs a density signal including information on density fluctuations in the conveying direction of the endless belt; and a period detecting sensor which detects the period included in the density fluctuations.
摘要翻译：公开了一种图像形成装置，包括光源; 鼓光学扫描装置; 和无尽的皮带。图像形成装置还包括图案形成单元，其沿环形带的输送方向在环形带上形成具有周期的浓度波动检测图案; 密度传感器，其检测所述浓度波动检测图案，并输出密度信号，所述浓度信号包括关于环形带的传送方向上的密度波动的信息; 以及周期检测传感器，其检测包含在密度波动中的周期。

12. 发明授权

US08929759B2 Image forming apparatus and density change suppressing method 有权
标题翻译：图像形成装置和密度变化抑制方法
公开(公告)号：US08929759B2
公开(公告)日：2015-01-06
申请号：US13889781
申请日：2013-05-08
申请人： Muneaki Iwata , Kazuhiro Akatsu , Masaaki Ishida , Atsufumi Omori , Hayato Fujita
发明人： Muneaki Iwata , Kazuhiro Akatsu , Masaaki Ishida , Atsufumi Omori , Hayato Fujita
IPC分类号： G03G15/00 , G03G13/04 , G03G15/043
CPC分类号： G03G13/04 , G03G15/043 , G03G15/5041 , G03G15/5054 , G03G15/55
摘要： An image forming apparatus includes: a density detection unit that detects densities of an image developed by a developing unit at a plurality of positions in a main-scanning direction; a processing unit that obtains at least one of an amplitude and a phase of a first periodical density change of the image, of which cycle is a rotation cycle of a photosensitive drum, at the plurality of positions in the main-scanning direction on the basis of an output signal of the density detection unit, and corrects a drive signal for the light source so as to suppress the first periodical density change of the image at each position in the main-scanning direction on the basis of the rotation cycle of the photosensitive drum and at least one of the amplitude and the phase.
摘要翻译：图像形成装置包括：浓度检测单元，其检测由主扫描方向上的多个位置处的显影单元显影的图像的浓度; 处理单元，其基于在主扫描方向上的多个位置处获取图像的第一周期性密度变化的幅度和相位中的至少一个，哪个周期是感光鼓的旋转周期并且校正用于光源的驱动信号，以便基于感光体的旋转周期来抑制主扫描方向上每个位置处的图像的第一周期性密度变化鼓和振幅和相位中的至少一个。

13. 发明授权

US07969460B2 Optical scanning device and image forming apparatus 有权
标题翻译：光学扫描装置和图像形成装置
公开(公告)号：US07969460B2
公开(公告)日：2011-06-28
申请号：US12489728
申请日：2009-06-23
申请人： Kazuhiro Akatsu , Yasuyuki Shibayama , Takeshi Mochizuki
发明人： Kazuhiro Akatsu , Yasuyuki Shibayama , Takeshi Mochizuki
IPC分类号： B41J15/14 , B41J27/00
CPC分类号： G03G15/326 , G02B26/123 , G03G15/0435 , G03G2215/0404
摘要： Disclosed is an optical scanning device including a light source including multiple light-emitting elements, the multiple light-emitting elements being arranged in a linear manner, a collimator lens to collimate a light beam from the light source, a light-deflecting device to deflect a light beam having passed through the collimator lens to a medium to be scanned and scan the medium with the light beam, and a rear optical system arranged in an optical path between the collimator lens and the medium to be scanned, wherein the collimator lens deviates an image surface in a direction opposite to an image surface deviation on the medium to be scanned by a nearly same amount as the image surface deviation, the image surface deviation being caused by a change of an image height of the light source, and the change being caused by the rear optical system.
摘要翻译：公开了一种光学扫描装置，包括：包括多个发光元件的光源，多个发光元件以直线方式布置;准直透镜，用于准直来自光源的光束;光偏转装置，其偏转已经通过准直透镜的光束到要被扫描的介质并用光束扫描介质;以及后光学系统，布置在准直透镜和待扫描介质之间的光路中，其中准直透镜偏离在与要扫描的介质上的图像表面偏离相反的方向上的图像表面与图像表面偏差几乎相同的量，图像表面偏差是由光源的图像高度的变化引起的，以及变化由后方光学系统引起。

14. 发明授权

US5914800A Optical scanning system 失效
标题翻译：光学扫描系统
公开(公告)号：US5914800A
公开(公告)日：1999-06-22
申请号：US839751
申请日：1997-04-15
申请人： Kazuhiro Akatsu
发明人： Kazuhiro Akatsu
IPC分类号： B41J2/44 , G02B13/00 , G02B26/10 , G02B26/12 , H04N1/113 , H04N1/12 , H04N1/191 , G02B26/08
CPC分类号： B41J2/473 , G02B26/123 , H04N1/1911 , H04N1/1135 , H04N1/12
摘要： A predetermined relationship has been found between a number of beams and a ratio a between magnifications in an sub scanning direction. During scanning with a small number of beams, the allowable range of magnification ratio becomes comparatively large. During scanning with a large number of beams, the allowable range of magnification ratio is around 1. By setting the magnification ratio a in the sub scanning direction so as to satisfy the aforementioned allowable ranges, printing with less pitch error can be implemented even with a small magnification.
摘要翻译：已经发现多个光束之间的预定关系和副扫描方向上的放大率之间的比率a。在使用少量光束的扫描期间，放大率的允许范围变得相对较大。在大量光束的扫描期间，允许的倍率范围为1.通过将副扫描方向上的放大率a设定为满足上述允许范围，即使使用小放大倍数。

15. 发明授权

US10591602B2 Object detector and sensor 有权
公开(公告)号：US10591602B2
公开(公告)日：2020-03-17
申请号：US16384629
申请日：2019-04-15
申请人： Kazuhiro Akatsu , Tadashi Nakamura , Kohji Sakai
发明人： Kazuhiro Akatsu , Tadashi Nakamura , Kohji Sakai
IPC分类号： G01S17/42 , G01S7/486 , H05B37/02 , G01S17/93 , G01S7/481 , G01S7/484 , G01S7/51
摘要： An object detector includes a projector including a light source having a two-dimensionally arranged plurality of light emitter groups, each of the light emitter groups having a plurality of light emitters, a light receiver which receives light emitted from the projector, and reflected by an object, and a light source driver which lights on and lights off each of the light emitter groups of the light source.

16. 发明授权

US09817123B2 Object detector and sensor 有权
公开(公告)号：US09817123B2
公开(公告)日：2017-11-14
申请号：US15371650
申请日：2016-12-07
申请人： Kazuhiro Akatsu , Tadashi Nakamura , Kohji Sakai
发明人： Kazuhiro Akatsu , Tadashi Nakamura , Kohji Sakai
IPC分类号： G01S17/42 , H05B37/02 , G01S17/93 , G01S7/481 , G01S7/484 , G01S7/486 , G01S7/51
CPC分类号： G01S17/42 , G01S7/4815 , G01S7/484 , G01S7/4868 , G01S7/51 , G01S17/936 , H05B37/0227
摘要： An object detector includes a projector including a light source having a two-dimensionally arranged plurality of light emitter groups, ach of the light emitter groups having a plurality of light emitters, a light receiver which receives light emitted from the projector, and reflected by an object, and a light source driver which lights on and lights off each of the light emitter groups of the light source.

17. 发明授权

US09568605B2 Object detector and sensor 有权
标题翻译：物体检测器和传感器
公开(公告)号：US09568605B2
公开(公告)日：2017-02-14
申请号：US14554498
申请日：2014-11-26
申请人： Kazuhiro Akatsu , Tadashi Nakamura , Kohji Sakai
发明人： Kazuhiro Akatsu , Tadashi Nakamura , Kohji Sakai
IPC分类号： G01S17/42 , H05B37/02 , G01S17/93 , G01S7/481 , G01S7/484 , G01S7/486
CPC分类号： G01S17/42 , G01S7/4815 , G01S7/484 , G01S7/4868 , G01S7/51 , G01S17/936 , H05B37/0227
摘要： An object detector includes a projector including a light source having a two-dimensionally arranged plurality of light emitter groups, each of the light emitter groups having a plurality of light emitters, a light receiver which receives light emitted from the projector, and reflected by an object, and a light source driver which lights on and lights off each of the light emitter groups of the light source.
摘要翻译：一种物体检测器包括：投影仪，包括具有二维布置的多个发光体组的光源，每个发光体组具有多个发光体;受光器，接收从投影仪发出的光，并由物体和光源驱动器，其点亮并点亮光源的每个发光体组。

18. 发明授权

US09193197B2 Liquid droplet detecting device, inkjet recording device incorporating same, and liquid droplet detection method 有权
标题翻译：液滴检测装置，结合其的喷墨记录装置和液滴检测方法
公开(公告)号：US09193197B2
公开(公告)日：2015-11-24
申请号：US14620005
申请日：2015-02-11
申请人： Genichiro Kawamichi , Shigeru Morinaga , Hideharu Miki , Hiroshi Ando , Kahei Nakamura , Kazuhiro Akatsu , Hirotaka Kobayashi , Keiichi Watanabe
发明人： Genichiro Kawamichi , Shigeru Morinaga , Hideharu Miki , Hiroshi Ando , Kahei Nakamura , Kazuhiro Akatsu , Hirotaka Kobayashi , Keiichi Watanabe
IPC分类号： B41J29/393 , B41J2/21
CPC分类号： B41J29/393 , B41J2/125 , B41J2/16579 , B41J2/16585 , B41J2/2142 , B41J25/34
摘要： A liquid droplet detecting device includes nozzles arranged in a paper width direction orthogonal to a paper conveying direction to discharge liquid droplets, a light emitting element provided on one side of the paper width direction to emit a light beam for liquid droplet detection, a light receiving element provided on the other side of the paper width direction to receive the light beam, a storage in which correspondence information on each of the nozzles and a scan position of the light beam when discharge of a liquid droplet from each of the nozzles is detected is stored, a controller to allow the light beam to scan according to the correspondence information, and a detector to determine presence or absence a liquid droplet discharged from each nozzle from an output of the light receiving element.
摘要翻译：液滴检测装置包括沿与纸张传送方向正交的纸张宽度方向排列以排出液滴的喷嘴，设置在纸张宽度方向的一侧上的发光元件，以发射液滴检测用光束，设置在纸张宽度方向的另一侧以容纳光束的存储器，当检测到每个喷嘴的液滴的排出时，其中关于每个喷嘴的对应信息和光束的扫描位置的存储器是存储有用于允许光束根据对应信息扫描的控制器，以及检测器，用于确定从光接收元件的输出从每个喷嘴排出的液滴的存在或不存在。

19. 发明授权

US5818496A Exposure device of electrophotographic apparatus with optical path position deciding device 失效
标题翻译：具有光路位置决定装置的电子照相设备的曝光装置
公开(公告)号：US5818496A
公开(公告)日：1998-10-06
申请号：US502056
申请日：1995-07-14
申请人： Youji Hirose , Yasuyuki Tsuji , Shuuho Yokokawa , Kunitomo Takahashi , Isao Nakajima , Muneyoshi Akai , Satoshi Aita , Sho Sawahata , Shigeo Nemoto , Yukio Otome , Katsuhito Komoda , Keiji Kataoka , Kazuhiro Akatsu
发明人： Youji Hirose , Yasuyuki Tsuji , Shuuho Yokokawa , Kunitomo Takahashi , Isao Nakajima , Muneyoshi Akai , Satoshi Aita , Sho Sawahata , Shigeo Nemoto , Yukio Otome , Katsuhito Komoda , Keiji Kataoka , Kazuhiro Akatsu
IPC分类号： B41J2/44 , B41J2/47 , G02B26/12 , G03G15/04 , H04N1/04 , H04N1/047 , H04N1/113 , H04N1/191 , B41J2/435
CPC分类号： H04N1/0473 , B41J2/473 , G02B26/123 , H04N1/1135 , H04N1/1911 , H04N2201/0476
摘要： An exposure device of an electrophotographic apparatus which includes a rotary polyhedral mirror for scanning a plurality of laser beams on a photosensitive body, a beam interval adjusting member for adjusting an interval between the laser beams, a rotating mechanism for rotating the beam interval adjusting member, and an optical path position deciding device disposed on the side of the rotary polyhedral mirror in a laser beam advancing direction at the time of adjustment of the laser beam interval, the beam interval adjusting member being rotated so that the optical paths of the laser beams are decided by the optical path position deciding device. The optical path position deciding device may include a plate-like member with boresights or a CCD sensor and a CRT display.
摘要翻译：一种电子照相设备的曝光装置，包括用于扫描感光体上的多个激光束的旋转多面体镜，用于调节激光束之间的间隔的光束间隔调节部件，用于旋转光束间隔调节部件的旋转机构，以及在调整激光束间隔时在激光束行进方向上设置在旋转多面体镜侧的光路位置决定装置，使光束间隔调整部件旋转，使得激光束的光路为由光路位置决定装置决定。光路位置决定装置可以包括具有射影的板状构件或CCD传感器和CRT显示器。

20. 发明授权

US10209133B2 Wavelength estimation device, light-source device, image display apparatus, object apparatus, wavelength estimation method, and light-source control method 有权
公开(公告)号：US10209133B2
公开(公告)日：2019-02-19
申请号：US15454223
申请日：2017-03-09
申请人： Kohji Sakai , Kazuhiro Akatsu
发明人： Kohji Sakai , Kazuhiro Akatsu
IPC分类号： G01N21/00 , G01J3/50 , G01J3/02 , G01J3/10 , H01S5/068 , H04N9/31 , G01J3/46 , H01S5/00 , H01S5/06 , H01S5/0683 , H01S5/40 , H05B33/08
摘要： A wavelength estimation device including a light detector to receive light emitted from a light source and an estimation unit. The estimation unit estimates a wavelength of the light based on an amount of light received by the light detector.

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