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1. 发明授权

US06888559B2 Laser beam scanner forming a scanning line along a main scanning direction 有权
标题翻译：激光束扫描器沿主扫描方向形成扫描线
公开(公告)号：US06888559B2
公开(公告)日：2005-05-03
申请号：US09758144
申请日：2001-01-12
申请人： Koji Ito , Ryota Kato , Yasuo Tamaru , Yutaka Hattori
发明人： Koji Ito , Ryota Kato , Yasuo Tamaru , Yutaka Hattori
IPC分类号： H04N1/047 , H04N1/113 , B41J2/435
CPC分类号： H04N1/047 , H04N1/113
摘要： A laser beam scanner converges a laser beam by using a first fθ lens and a second fθ lens in a main-scanning direction and in a sub-scanning direction, respectively, onto a photosensitive medium, thereby forming a scanning line on the photosensitive medium along the main-scanning direction. Before scanning the photosensitive medium, the laser beam that has passed through and been converged by the first fθ lens, but not passed through the second fθ lens, is guided to a beam detector and converged by a cylinder lens in the sub-scanning direction so that the laser beam falls within a detection area of the beam detector. The beam detector determines a scan start time by detecting the laser beam.
摘要翻译：激光束扫描仪通过在主扫描方向和副扫描方向上将第一透镜和第二透镜分别在激光束上会聚到感光介质上，从而在感光介质上形成扫描线主扫描方向。在扫描感光介质之前，已经通过并被第一晶片透镜会聚但不通过第二透镜的激光束被引导到光束检测器并且被副透镜在副扫描方向上会聚，所以激光束落在光束检测器的检测区域内。光束检测器通过检测激光束来确定扫描开始时间。

2. 发明授权

US06583913B2 Multibeam scanner 有权
标题翻译：多波束扫描仪
公开(公告)号：US06583913B2
公开(公告)日：2003-06-24
申请号：US09756871
申请日：2001-01-10
申请人： Koji Ito , Ryota Kato , Yutaka Hattori
发明人： Koji Ito , Ryota Kato , Yutaka Hattori
IPC分类号： G02B2608
CPC分类号： H04N1/0408 , B41J2/473 , G06K15/1261 , H04N1/053 , H04N1/1135 , H04N1/12 , H04N1/1911 , H04N2201/02439 , H04N2201/04732 , H04N2201/04744 , H04N2201/04755 , H04N2201/04786 , H04N2201/04794 , Y10S359/90
摘要： A multibeam scanner for scanning an image area with a plurality of laser beams, comprising a plurality of beam emitting points that emit a plurality of laser beams reaching the image area with respective time lags therebetween, a time lag determination unit that determines at least one of the time lags during a predetermined calculation time, a scan controller that controls the plurality of beam emitting points to emit the plurality of laser beams successively in the image area with the at least one of the time lags determined by the time lag determination unit. The multibeam scanner of the invention, comprises a photodetector that detects any one of the laser beams at a predetermined beam detection position. The time lag determination unit determines the time lag between the nth laser beam and the n+1th laser beam. Therefore, to scan the image area, the photodetector detects the first laser beam at the predetermined beam detection position, prior to the image area, and determines a scan start time for the first laser beam. Then, the scan controller starts controlling the first beam emitting point at the determined scan start time to emit the first laser beam in the image area. The scan controller further controls the n+1th beam emitting point to emit the nth laser beam in the image area with the calculated time lag between the nth laser beam and the n+1th laser beam.
摘要翻译：一种多光束扫描器，用于利用多个激光束扫描图像区域，所述多光束扫描器包括发射多个激光束的多个光束发射点，所述多个激光束以相应的时间滞后到达所述图像区域;时间延迟确定单元，所述时间在预定计算时间期间滞后，所述扫描控制器控制所述多个光束发射点在所述时间延迟确定单元确定的所述时间滞后中的所述图像区域中连续地发射所述多个激光束。本发明的多光束扫描器包括在预定光束检测位置处检测任何一个激光束的光电检测器。时间延迟确定单元确定第n个激光束和第n + 1个激光束之间的时滞。因此，为了扫描图像区域，光电检测器在图像区域之前检测预定光束检测位置处的第一激光束，并确定第一激光束的扫描开始时间。然后，扫描控制器以确定的扫描开始时间开始控制第一光束发射点，以在图像区域中发射第一激光束。扫描控制器进一步控制第n + 1个光束发射点，以计算第n个激光束和第n + 1个激光束之间的时间滞后在图像区域中发射第n个激光束。

3. 发明授权

US06483529B1 Multibeam scanner 有权
标题翻译：多波束扫描仪
公开(公告)号：US06483529B1
公开(公告)日：2002-11-19
申请号：US09718478
申请日：2000-11-24
申请人： Koji Ito , Ryota Kato , Yutaka Hattori
发明人： Koji Ito , Ryota Kato , Yutaka Hattori
IPC分类号： B41J2435
CPC分类号： B41J2/471 , G02B26/123
摘要： A multibeam scanner capable of scanning an image forming area with constant beam amounts of laser beams. The multibeam scanner of the invention performs automatic power control (APC) on each of a plurality of beam emitting points one by one during corresponding time durations, respectively, in a non-image forming area. The laser beam emitted last among the plurality of laser beams is controlled to reach a predetermined beam detecting position within the corresponding time duration. Before scanning the image forming area, the multibeam scanner determines a scan start timing upon the detection of the laser beam emitted at the beam detecting position, which has been stabilized during APC. This arrangement allows the laser diode to avoid wasting time again and again, as rise time for stabilizing the laser beam for performing APC and for identifying the scan start timing, and to secure the time durations as long as possible. It is therefore possible to perform APC against the laser diodes properly during the sufficient time durations and, at the same time, possible to determine the scan start timing precisely by detecting the stabilized laser beam.
摘要翻译：一种能够以恒定光束量的激光束扫描图像形成区域的多光束扫描仪。本发明的多光束扫描器分别在非图像形成区域中的相应时间期间逐个地在多个光束发射点的每一个上执行自动功率控制（APC）。控制在多个激光束中最后发射的激光束在相应的持续时间内到达预定的光束检测位置。在扫描图像形成区域之前，多光束扫描器在检测到在APC期间已经稳定的光束检测位置处发射的激光束时确定扫描开始时刻。这种布置允许激光二极管避免一次又一次地浪费时间，作为用于稳定用于执行APC的激光束和用于识别扫描开始定时的上升时间，并且尽可能长地确保持续时间。因此，可以在足够的持续时间内适当地对激光二极管执行APC，并且同时可以通过检测稳定的激光束来精确地确定扫描开始定时。

4. 发明授权

US06410904B1 Multi-beam emitting device 有权
标题翻译：多光束发射装置
公开(公告)号：US06410904B1
公开(公告)日：2002-06-25
申请号：US09717154
申请日：2000-11-22
申请人： Koji Ito , Ryota Kato , Yutaka Hattori
发明人： Koji Ito , Ryota Kato , Yutaka Hattori
IPC分类号： H01L3300
CPC分类号： G02B27/09 , G02B7/02 , G02B26/12 , H01L2224/48091 , H01S5/02212 , H01S5/4031 , H01L2924/00014
摘要： A semiconductor laser device includes a metal case. The metal case includes a brass stem and a cap that covers an upper portion of the stem and has a laser emitting hole therein. The stem is provided with a laser diode having two laser emitting portions and a photodiode. Each cathode of the laser emitting portions and the photodiode is grounded to the metal case as a common lead. Each anode of the laser emitting portions and the photodiode is insulated from the metal case and connected to respective pin protruding downward from the stem. The semiconductor laser device is provided with conductivity to the metal case by press-fitting into an aluminum support plate that is a radiating plate. The support plate is connected to a drive circuit.
摘要翻译：半导体激光装置包括金属壳体。金属外壳包括一个黄铜杆和一个覆盖杆的上部并在其中具有激光发射孔的盖。杆设置有具有两个激光发射部分和光电二极管的激光二极管。激光发射部分的每个阴极和光电二极管作为公共引线接地到金属外壳。激光发射部分的每个阳极和光电二极管与金属壳绝缘，并连接到从杆向下突出的相应销。半导体激光装置通过压配合到作为散热板的铝支撑板而对金属壳体具有导电性。支撑板连接到驱动电路。

5. 发明授权

US06710792B1 Multibeam scanner 有权
标题翻译：多波束扫描仪
公开(公告)号：US06710792B1
公开(公告)日：2004-03-23
申请号：US09697144
申请日：2000-10-27
申请人： Koji Ito , Ryota Kato , Yutaka Hattori
发明人： Koji Ito , Ryota Kato , Yutaka Hattori
IPC分类号： B41J244
CPC分类号： B41J2/473 , G02B26/123 , G02B26/127
摘要： In a multibeam scanner, a control unit includes a velocity detecting circuit detecting a conveying velocity V of a photosensitive body; a comparison circuit comparing the detected conveying velocity V to a reference conveying velocity V0; a light intensity control circuit 93, a modulation circuit 94, an LD1 control circuit 95, and an LD2 control circuit 96. The LD1 control circuit 95 and LD2 control circuit 96 issue drive signals to laser diodes LD1 and LD2. The laser diodes LD1 and LD2 emit laser beams LB1 and LB2 that are modulated according to image signals outputted from the modulation circuit 94. The laser beams LB1 and LB2 are deflected by a polygon mirror onto the photosensitive body and perform a main scan over neighboring scanning lines SL1 and SL2, while the photosensitive drum is rotated. The light intensity from the laser diode LD1 is adjusted when the velocity of the photosensitive drum differs from a prescribed velocity in order to achieve a balanced image density.
摘要翻译：在多光束扫描器中，控制单元包括检测感光体的传送速度V的速度检测电路; 将检测到的输送速度V与基准输送速度V0进行比较的比较电路; 光强度控制电路93，调制电路94，LD1控制电路95和LD2控制电路96.LD1控制电路95和LD2控制电路96向激光二极管LD1和LD2发出驱动信号。激光二极管LD1和LD2发射根据从调制电路94输出的图像信号调制的激光束LB1和LB2。激光束LB1和LB2被多面反射镜偏转到感光体上，并通过相邻扫描进行主扫描线SL1和SL2，同时感光鼓旋转。为了实现平衡的图像浓度，当感光鼓的速度与规定的速度不同时，调整来自激光二极管LD1的光强度。

6. 发明授权

US06504147B1 Multibeam scanner 有权
标题翻译：多波束扫描仪
公开(公告)号：US06504147B1
公开(公告)日：2003-01-07
申请号：US09711103
申请日：2000-11-14
申请人： Koji Ito , Ryota Kato , Yutaka Hattori
发明人： Koji Ito , Ryota Kato , Yutaka Hattori
IPC分类号： H01J314
CPC分类号： H04N1/0411 , G02B26/123 , G06K15/1219 , G06K2215/111 , H04N1/0402 , H04N1/0414 , H04N1/0443 , H04N1/0455 , H04N1/1135 , H04N1/12 , H04N1/1911 , H04N2201/03108 , H04N2201/0471 , H04N2201/04725 , H04N2201/04731 , H04N2201/04734 , H04N2201/04756 , H04N2201/04791
摘要： In a multibeam scanner, the resolution switching circuit 91 of the control unit 9 transmits a control signal to the motor drive circuit 92 and controls the motor drive circuit 92 to rotate the drive motor 78 at a velocity corresponding to the resolution. The resolution switching circuit 91 transmits a resolution signal to the image generation circuit 93 and controls the image generated circuit 93 to generate output image data that conforms to the resolution. The LD1 control circuit 95 and the LD2 control circuit 96 are modulated by the modulation circuit 94 to oscillate the laser diodes LD1 and LD2 based on the output image data. When performing exposure at a low resolution, the rearmost scanning line SL2 in the previous group of lines and the forwardmost scanning line SL1 in the following group of scanning lines are exposed according to the same image signal, thereby preventing a loss of image quality by preventing open areas of the interval I2 between scanning lines from becoming noticeable.
摘要翻译：在多波束扫描器中，控制单元9的分辨率切换电路91将控制信号发送到马达驱动电路92，并控制马达驱动电路92以与分辨率对应的速度旋转驱动马达78。分辨率切换电路91将分辨率信号发送到图像生成电路93，并且控制图像生成电路93以生成符合分辨率的输出图像数据。 LD1控制电路95和LD2控制电路96由调制电路94进行调制，以便基于输出图像数据振荡激光二极管LD1和LD2。当以低分辨率进行曝光时，根据相同的图像信号曝光前一组线中的最后扫描线SL2和下一组扫描线中的最前面的扫描线SL1，从而防止图像质量的损失扫描线之间的间隔I2的开放区域变得明显。

7. 发明授权

US09073340B2 Ink jet printing apparatus and ink jet printing method with varied relative bias of printing permission ratio between print modes 有权
标题翻译：喷墨打印设备和喷墨打印方法，其打印模式之间的打印允许比例有相对偏差
公开(公告)号：US09073340B2
公开(公告)日：2015-07-07
申请号：US13270707
申请日：2011-10-11
申请人： Yoshitomo Marumoto , Hiromitsu Yamaguchi , Ryota Kato , Hitoshi Tsuboi , Yohei Masada
发明人： Yoshitomo Marumoto , Hiromitsu Yamaguchi , Ryota Kato , Hitoshi Tsuboi , Yohei Masada
IPC分类号： B41J2/205 , B41J2/21 , G06K15/10 , H04N1/60
CPC分类号： B41J25/001 , B41J2/04501 , B41J2/2132 , G06K15/107 , G06K2215/0094 , H04N1/6097
摘要： A printing apparatus that includes nozzle arrays, formed of nozzles for ejecting ink of the first to fourth ink color groups, and that scans a print medium while moving the nozzle arrays to perform printing. For printing a unit area of a print medium, where printing is to be completed by performing a plurality of scans, the printing apparatus performs a plurality of scans, and conveys, between movements, a print medium a predetermined amount, which is equivalent to the width of the unit area. Then, to perform a plurality of scans using the nozzle arrays for the first to fourth ink color groups, print data are generated, so that for the nozzle arrays that belong to two ink color groups, the nozzle array for the first ink color group is employed to eject ink into the unit area prior to the nozzle array for the second ink color group.
摘要翻译：一种打印装置，包括由用于喷射第一至第四墨水颜色组的墨水的喷嘴形成的喷嘴阵列，并且在移动喷嘴阵列进行打印的同时扫描打印介质。为了打印要通过执行多次扫描来完成打印的打印介质的单位区域，打印装置执行多次扫描，并且在运动之间传送打印介质预定量，其等于单位面积的宽度。然后，为了使用第一至第四墨水颜色组的喷嘴阵列执行多次扫描，产生打印数据，使得对于属于两个墨水颜色组的喷嘴阵列，第一墨水颜色组的喷嘴阵列为用于在用于第二油墨颜色组的喷嘴阵列之前将油墨喷射到单元区域中。

8. 发明申请

US20100214351A1 INK JET IMAGE-FORMING METHOD, INK JET COLOR IMAGE-FORMING METHOD AND INK JET RECORDING APPARATUS 有权
标题翻译：墨水喷射成像方法，喷墨打印彩色图像形成方法和喷墨记录装置
公开(公告)号：US20100214351A1
公开(公告)日：2010-08-26
申请号：US12664084
申请日：2008-07-22
申请人： Shoji Koike , Ryota Kato , Hitoshi Yoshino
发明人： Shoji Koike , Ryota Kato , Hitoshi Yoshino
IPC分类号： B41J2/015
CPC分类号： B41M5/0023 , C09D11/322
摘要： An ink jet image-forming method for forming an image by applying an ink in a fixed amount of 0.5 pl or more to 6.0 pl or less to plain paper. The ink contains a self-dispersion pigment, water, a water-soluble compound having a coefficient of hydrophilicity-hydrophobicity of 0.37 or more as defined by the equation (A) stated in the description and a water-soluble compound having a coefficient of hydrophilicity-hydrophobicity of 0.25 or less, and has a surface tension of 34 mN/m or less. The application of the ink is divided into plural times when an image having a portion where the ink is applied in a duty of 80% or more and an amount of 5.0 μl/cm2 or less in total is formed in a basic matrix for forming the image, and the amount of the ink applied at each of the times divided is 0.7 μl/cm2 or less.
摘要翻译：一种喷墨图像形成方法，用于通过将普通纸的固定量为0.5pl以上至6.0pl以下的墨水进行图像形成。油墨含有自分散颜料，水，具有亲水性 - 疏水性系数的水溶性化合物，如描述中所述的式（A）所定义的0.37以上，具有亲水性系数的水溶性化合物 - 疏水性为0.25以下，表面张力为34mN / m以下。当在具有80％以上的负荷的一部分的图像和总共5.0μl/ cm 2以下的总量的基底基体上形成具有油墨部分的图像时，油墨的涂布被分成多次，以形成图像，并且分配的每一次施加的油墨量为0.7μl/ cm 2以下。

9. 发明申请

US20100045723A1 INK-JET PRINTING APPARATUS AND INK-JET PRINTING METHOD 有权
标题翻译：喷墨打印设备和喷墨打印方法
公开(公告)号：US20100045723A1
公开(公告)日：2010-02-25
申请号：US12606835
申请日：2009-10-27
申请人： Ryota Kato , Yoshitomo Marumoto , Hitoshi Tsuboi , Eri Noguchi , Takeshi Egami
发明人： Ryota Kato , Yoshitomo Marumoto , Hitoshi Tsuboi , Eri Noguchi , Takeshi Egami
IPC分类号： B41J2/205
CPC分类号： B41J2/2132 , B41J2/2107
摘要： The print permitting ratios of the masks in the first to fourth passes of a C ink are respectively 6.2%, 37.5%, 37.5%, and 18.8%. On the other hand, the print permitting ratios of the masks in the first to fourth passes of an M ink are respectively 12.5%, 37.5%, 37.5%, and 12.5%. In this way, the respective masks are set such that a larger amount of the C ink is applied in a later pass as compared with the M ink. Thereby, it is possible to reduce an amount of the M ink to be applied later with respect to the C ink functioning to “reduce a permeation speed of an ink applied later by filling,” and it is possible to prevent a permeation speed from slowing down overall. As a result, it is possible to prevent the occurrence of beading due to a time to complete permeation becoming longer.
摘要翻译： C油墨的第一至第四道次的掩模的印刷许可比分别为6.2％，37.5％，37.5％和18.8％。另一方面，M墨水的第一至第四遍中的掩模的印刷许可比率分别为12.5％，37.5％，37.5％和12.5％。以这种方式，各个掩模被设置为使得与M墨水相比，稍后通过更大量的C墨水被施加。由此，可以减少相对于“降低通过填充涂敷的油墨的渗透速度”起作用的C油墨稍后施加的M油墨的量，并且可以防止渗透速度变慢整体下降。结果，可以防止由于完成渗透的时间变长而发生珠粒。

10. 发明授权

US07184185B2 Image-forming device and scanning unit for use therein 有权
标题翻译：图像形成装置及其中使用的扫描装置
公开(公告)号：US07184185B2
公开(公告)日：2007-02-27
申请号：US11186860
申请日：2005-07-22
申请人： Yasuo Tamaru , Ryota Kato
发明人： Yasuo Tamaru , Ryota Kato
IPC分类号： G02B26/08
CPC分类号： G02B27/0018 , G02B26/123
摘要： In an image-forming device, a plurality of laser beams is irradiated onto the reflecting surface of a polygon mirror so as to be obliquely incident thereon. A plurality of mixture preventing elements is provided for preventing a laser beam from mixing in optical paths for another light beams.
摘要翻译：在图像形成装置中，将多个激光束照射到多面镜的反射面上以倾斜入射。提供了多个混合防止元件，用于防止激光束在用于另一光束的光路中混合。

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