专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

71. 发明授权

US06639620B2 Light beam scanning apparatus 失效
公开(公告)号：US06639620B2
公开(公告)日：2003-10-28
申请号：US09970990
申请日：2001-10-05
申请人： Daisuke Ishikawa , Koji Tanimoto , Kenichi Komiya , Koji Kawai
发明人： Daisuke Ishikawa , Koji Tanimoto , Kenichi Komiya , Koji Kawai
IPC分类号： B41J2435
CPC分类号： H04N1/053 , G02B26/127 , G06K15/1219 , H04N1/1135 , H04N1/12 , H04N1/1911 , H04N2201/0082 , H04N2201/02439 , H04N2201/04712 , H04N2201/04734 , H04N2201/04744 , H04N2201/04749 , H04N2201/04762 , H04N2201/04794
摘要： A light beam is scanned in the main scanning direction on a scanned face. The light beam is detected by a pair of sensors arranged on the scanned face or a position equivalent thereto and is converted to an electric signal. A processing circuit having a plurality of operational amplifiers corrects electric signals from the pair of sensors based on a correction signal and integrates a difference between these electric signals. A correction amount of the correction signal is set based on a value integrated by the processing circuit and an offset amount present in the processing circuit.

72. 发明授权

US06539793B2 Flow rate detector 有权
公开(公告)号：US06539793B2
公开(公告)日：2003-04-01
申请号：US09983407
申请日：2001-10-24
申请人： Koji Tanimoto , Shinji Taniguchi , Tomoya Yamakawa , Ryuji Toyama
发明人： Koji Tanimoto , Shinji Taniguchi , Tomoya Yamakawa , Ryuji Toyama
IPC分类号： G01F168
CPC分类号： G01F5/00 , G01F1/6842 , G01F1/696
摘要： The invention provides a flow rate detector capable of precisely detecting a flow rate of an object fluid and effectively reducing a leaning error even when the object fluid is pulsating, thereby improving precision in detection of flow rate. The flow rate detector comprises a flow detector 50 for outputting a flow-detecting signal Sf according to a flow rate of the object fluid utilizing heat transfer phenomenon from an exothermic resistor 12 disposed in a fluid passage to the object fluid, and a gain compensator 60 for compensating an error in a flow-detecting signal Sf by amplifying the flow-detecting signal Sf from the flow detector 50, wherein the gain compensator 60 is arranged to amplify the flow-detecting signal Sf by a substantially constant alternating current gain G3 larger than a direct current gain G1 at the time of zero frequency, in a frequency range higher than a frequency f2A corresponding to the minimum pulsating frequency of the object fluid.

73. 发明授权

US06469730B2 Light beam scanning apparatus and image forming apparatus 有权
标题翻译：光束扫描装置和图像形成装置
公开(公告)号：US06469730B2
公开(公告)日：2002-10-22
申请号：US09770376
申请日：2001-01-29
申请人： Koji Tanimoto , Kenichi Komiya , Naoaki Ide , Jun Sakakibara
发明人： Koji Tanimoto , Kenichi Komiya , Naoaki Ide , Jun Sakakibara
IPC分类号： B41J2435
CPC分类号： H04N1/4005 , B41J2/473 , H04N1/0402 , H04N1/0411 , H04N1/0414 , H04N1/0443 , H04N1/0455 , H04N1/047 , H04N1/1135 , H04N1/12 , H04N1/1911 , H04N2201/02439 , H04N2201/0471 , H04N2201/04712 , H04N2201/04729 , H04N2201/04731 , H04N2201/04732 , H04N2201/04734 , H04N2201/04744 , H04N2201/04762 , H04N2201/04786 , H04N2201/04789 , H04N2201/04791 , H04N2201/04794
摘要： Four beams are caused to scan a scanning surface in the main scanning direction in parallel. The beams expose the target area between two optical sensors, not the surface of a photosensitive drum, to produce correction data to correct shifts in the exposure positions of the four beams in the main scanning direction with an accuracy of less than a small fraction of one pixel. On the basis of the correction data, an actual image formation area is set on the photosensitive drum. This makes it possible to always control the relative exposure scanning position accurately even when the relationship between the main scanning positions of the light beams is unknown.
摘要翻译：使四个光束平行扫描主扫描方向的扫描面。光束将目标区域暴露在两个光学传感器之间，而不是感光鼓的表面，以产生校正数据，以校正四个光束在主扫描方向上的曝光位置的偏移，精度小于一个像素。基于校正数据，在感光鼓上设置实际的图像形成区域。这使得即使当光束的主扫描位置之间的关系未知时，也可以精确地控制相对曝光扫描位置。

74. 发明授权

US06426767B1 Image forming apparatus for maintaining a constant beam scanning state 失效
标题翻译：用于保持恒定光束扫描状态的图像形成装置
公开(公告)号：US06426767B1
公开(公告)日：2002-07-30
申请号：US09750292
申请日：2000-12-29
申请人： Koji Tanimoto , Kenichi Komiya , Jun Sakakibara , Koji Kawai
发明人： Koji Tanimoto , Kenichi Komiya , Jun Sakakibara , Koji Kawai
IPC分类号： G03G1501
CPC分类号： H04N1/233 , G03G2215/0119 , H04N1/1135 , H04N1/12 , H04N1/2369 , H04N1/295 , H04N1/506 , H04N2201/0471 , H04N2201/04729 , H04N2201/04744 , H04N2201/33378
摘要： An image forming apparatus maintains a constant beam scanning state so that light beams scan each drum always in the same state once a desired color overlapping accuracy is obtained by controlling color registration in color image formation. This mechanism achieves constantly fine color overlapping without forming a test pattern several times or consuming toner unnecessarily. A beam passage switch is provided in a laser scanning system. Sensors provided near each photosensitive drum determine whether each light beam has scanned a certain portion with no inclination or a certain scanning area, or whether each image magnification provides a desired size. Sensors for detecting scanning light beam obtains the center of light beam in accordance with information on a point at which the sensors start to respond and another point at which they cease responding, for performing several types of control based on the positional information, which provides correct information even though the size or power is different over sevral light beam.
摘要翻译：图像形成装置保持恒定的光束扫描状态，使得一旦通过控制彩色图像形成中的颜色配准获得期望的颜色重叠精度，光束将始终处于相同的状态。这种机制实现了不间断地形成测试图案多次或不必要地消耗调色剂的颜色重叠。光束通过开关设置在激光扫描系统中。设置在每个感光鼓附近的传感器确定每个光束是否扫描没有倾斜或某个扫描区域的某个部分，或者每个图像放大是否提供期望的尺寸。用于检测扫描光束的传感器根据关于传感器开始响应的点的信息和其停止响应的另一个点获得光束中心，用于基于提供正确的位置信息执行几种类型的控制信息即使大小或功率不同于三光束。

75. 发明授权

US06411321B1 Light beam scanning apparatus and image forming apparatus 失效
公开(公告)号：US06411321B1
公开(公告)日：2002-06-25
申请号：US09150705
申请日：1998-09-10
申请人： Koji Tanimoto , Kenichi Komiya , Naoaki Ide , Jun Sakakibara
发明人： Koji Tanimoto , Kenichi Komiya , Naoaki Ide , Jun Sakakibara
IPC分类号： B41J2435
摘要： In a digital copying machine using a multi-beam optical system, a sensor pattern SH for sensing the power of each of the light beams a to d scanning the surface of a photosensitive drum and sensor patterns SB1 to SF1, SB2 to SF2 for sensing the passing positions of the beams are provided in a light beam position sensing unit. The sensor patterns SB1 to SF1, SB2 to SF2 are arranged linearly in the sub-scanning direction at intervals corresponding to two resolutions. The power of each light beam on the surface to be scanned is controlled so as to be in a specific range. Even when the light beams are scanned with different resolutions, they can be controlled with high accuracy so as to constantly have an ideal positional relationship between them. This always assures high picture quality.

76. 发明授权

US06297839B1 Light beam scanner unit and image forming apparatus with adjustment for contamination 失效
标题翻译：光束扫描器单元和具有调节污染的成像设备
公开(公告)号：US06297839B1
公开(公告)日：2001-10-02
申请号：US09541886
申请日：2000-03-31
申请人： Kenichi Komiya , Koji Tanimoto , Naoaki Ide , Jun Sakakibara
发明人： Kenichi Komiya , Koji Tanimoto , Naoaki Ide , Jun Sakakibara
IPC分类号： G02B2610
CPC分类号： G02B26/12
摘要： A light beam scanner unit includes a light beam generating unit for generating light beams at a fixed power, a polygon mirror for reflecting light beams generated from the light beam generating means toward a surface to be scanned, thereby scanning it, and a light beam power sensing unit for sensing light beam power for scanning a surface to be scanned with the polygon mirror. This light beam scanner unit further has a mirror contamination sensing unit for sensing contamination of the polygon mirror by comparing a sensing result obtained from the light beam power sensing unit when light beams are emitted by the light beam generating unit with a preset reference value.
摘要翻译：光束扫描器单元包括用于以固定功率产生光束的光束产生单元，用于将从光束产生装置产生的光束朝向待扫描表面反射，从而对其进行扫描的多角镜，以及光束功率感测单元，用于感测用于扫描要用多角镜扫描的表面的光束功率。该光束扫描器单元还具有镜面污染感测单元，用于通过比较当由光束产生单元发射光束与预设基准值时，从光束功率感测单元获得的感测结果来感测多面镜的污染。

77. 发明授权

US5995246A Light beam scanning apparatus for use with image forming apparatus 失效
标题翻译：用于图像形成装置的光束扫描装置
公开(公告)号：US5995246A
公开(公告)日：1999-11-30
申请号：US867655
申请日：1997-06-02
申请人： Kenichi Komiya , Koji Tanimoto , Naoaki Ide , Jun Sakakibara
发明人： Kenichi Komiya , Koji Tanimoto , Naoaki Ide , Jun Sakakibara
IPC分类号： B41J2/44 , B41J2/47 , G02B26/10 , G03G15/01 , G06K15/12 , H04N1/047 , H04N1/113 , H04N1/191 , H04N1/04 , H01J3/14
CPC分类号： H04N1/047 , B41J2/473 , G06K15/1219 , H04N1/1135 , H04N1/1911 , H04N2201/04729 , H04N2201/04789 , H04N2201/04791
摘要： In a digital copying mechine using a multi-beam optical system, first light receiving elements of a light beam detector placed on the extension of the surface of a photosensitive drum detects the positions of paths of scanning light beams in the sub-scanning direction. On the basis of the results of this detection, the amount of control for the position of the path of each light beam is calculated. Galvano mirrors, adapted to reflect the light beams onto the surface of the photosensitive drum, are driven accordingly, so that the paths of the light beams are properly positioned in the sub-scanning direction. Second light receiving elements of the light beam detector detect times at which the light beams move across the light beam detector. A sync clock is produced after a delay from when each light beam moves across the light beam detector. The spacing between each second light receiving element is set to an integral multiple of the length of one dot formed by a light beam on the photosensitive drum in the main scanning direction. In synchronism with the sync clocks, pixel clocks and image data are applied to laser oscillators to form an image on the surface of the photosensitive drum. A light beam scanning apparatus is provided which can properly control the positions of lines scanned by the light beams on the photosensitive drum surface and hence can maintain high image quality at all times.
摘要翻译：在使用多光束光学系统的数字复印机中，放置在感光鼓表面的延伸部上的光束检测器的第一光接收元件检测扫描光束在副扫描方向上的路径的位置。基于该检测的结果，计算出每个光束的路径的位置的控制量。相应地驱动适于将光束反射到感光鼓的表面上的电流镜，使得光束的路径在副扫描方向上适当地定位。光束检测器的第二光接收元件检测光束穿过光束检测器移动的时间。在从每个光束移动穿过光束检测器的延迟之后产生同步时钟。每个第二光接收元件之间的间隔被设定为由感光鼓上的光束在主扫描方向上形成的一个点的长度的整数倍。与同步时钟同步，将像素时钟和图像数据施加到激光振荡器以在感光鼓的表面上形成图像。提供一种光束扫描装置，其可以适当地控制由感光鼓表面上的光束扫描的线的位置，因此可以始终保持高的图像质量。

78. 发明授权

US5892533A Beam passage position control apparatus for controlling a beam passage position and an image forming apparatus using the same 失效
标题翻译：用于控制光束通过位置的光束通过位置控制装置和使用其的成像装置
公开(公告)号：US5892533A
公开(公告)日：1999-04-06
申请号：US821778
申请日：1997-03-20
申请人： Koji Tanimoto , Kenichi Komiya , Naoaki Ide , Jun Sakakibara
发明人： Koji Tanimoto , Kenichi Komiya , Naoaki Ide , Jun Sakakibara
IPC分类号： B41J2/44 , G02B26/10 , G02B26/12 , H04N1/04 , H04N1/047 , H04N1/113 , H04N1/191 , B41J2/47
CPC分类号： H04N1/0411 , G02B26/123 , G02B26/127 , H04N1/0402 , H04N1/0443 , H04N1/047 , H04N1/1135 , H04N1/1911 , H04N2201/04729 , H04N2201/04789 , H04N2201/04791
摘要： A beam passing position controlling apparatus comprises a light source for emitting a beam, a mechanism for reflecting the beam toward an image carrier surface to scan the image carrier surface, a sensor for detecting a position where the beam passes on the image carrier surface, a circuit for calculating a correction amount from the position detected, a mechanism for correcting the passing position of the beam on the basis of the correction amount, and a circuit for controlling respective operations of the apparatus.
摘要翻译：光束通过位置控制装置包括用于发射光束的光源，用于将光束反射到图像载体表面以扫描图像载体表面的机构，用于检测光束在图像载体表面上通过的位置的传感器，用于从检测到的位置计算校正量的电路，用于基于校正量校正光束的通过位置的机构，以及用于控制设备的各个操作的电路。

79. 发明授权

US5768671A Color image forming apparatus having misregistration correction 失效
标题翻译：具有不对准校正的彩色图像形成装置
公开(公告)号：US5768671A
公开(公告)日：1998-06-16
申请号：US528497
申请日：1995-09-14
申请人： Kenichi Komiya , Koji Tanimoto , Naoaki Ide
发明人： Kenichi Komiya , Koji Tanimoto , Naoaki Ide
IPC分类号： G03G15/00 , G03G15/01 , G03G21/00 , H04N1/50
CPC分类号： H04N1/506 , G03G15/0194 , G03G2215/0119 , G03G2215/0161
摘要： An image forming apparatus includes plural latent image forming units for forming latent images on plural image carriers, plural developing units for developing the latent image formed on the image carriers and plural transfer units for transferring the color images developed on the image carriers to an image receiving medium conveyed by a medium support member. This image forming apparatus also includes a first detector for detecting a test pattern. This first detector has a light projecting portion and a light receiving portion which is arranged in parallel with the running direction of the medium support member. The image forming apparatus has a computing unit which computes misregistration of color images developed and transferred onto one of the medium support member and the image receiving medium based on a difference between a detection result by the detector and a threshold value. The misregistration of color images are corrected based on the results of computation by the computing unit. This first detector may be positioned opposite a vibration control roller. Additionally, a second detector detects a variation of a quantity of light reflected from the medium support member and the threshold value is changed accordingly, or the test pattern is prevented from being formed on a contaminated section of the support member.
摘要翻译：图像形成装置包括：多个潜像形成单元，用于在多个图像载体上形成潜像;多个显影单元，用于显影形成在图像载体上的潜像;以及多个转印单元，用于将在图像载体上显影的彩色图像转印到图像接收介质由介质支撑构件输送。该图像形成装置还包括用于检测测试图案的第一检测器。该第一检测器具有与介质支撑构件的行进方向平行布置的光投射部和光接收部。图像形成装置具有计算单元，该计算单元基于检测器的检测结果与阈值之间的差异来计算显影并转印到介质支撑构件和图像接收介质之一上的彩色图像的对准。基于计算单元的计算结果来校正彩色图像的对准。该第一检测器可以与振动控制辊相对。此外，第二检测器检测从介质支撑构件反射的光量的变化，并且相应地改变阈值，或者防止测试图案形成在支撑构件的污染部分上。

80. 发明授权

US5156046A Switching control type thermal flow sensor 失效
标题翻译：开关控制式热流量传感器
公开(公告)号：US5156046A
公开(公告)日：1992-10-20
申请号：US446088
申请日：1989-12-05
申请人： Koji Tanimoto , Mikio Bessho
发明人： Koji Tanimoto , Mikio Bessho
IPC分类号： G01F1/698
CPC分类号： G01F1/6986
摘要： A thermal flow sensor of a switching control type for measuring the flow rate of intake air of an internal combustion engine comprises a bridge circuit including temperature sensing resistors, a differential amplification circuit, a pulse generating circuit, a power supply control circuit and a resonance preventing circuit. The amplification circuit amplifying the output from the bridge circuit. The pulse generating circuit receives the output from the amplification circuit and generates a pulse train which has a time ratio corresponding to the output level of the amplification circuit. The power supply control means comprises a switching transistor which is turned on and off by the pulse train from the pulse generating circuit and a smoothing circuit which makes the output from the transistor continuous and supplies the continuous voltage to the bridge circuit. The resonance preventing circuit comprises a phase lag compensation circuit including a resistor and a capacitor connected in series between a differential amplifier of the amplification circuit, or a variable DC unbalanced voltage generator including a V/I converter which converts the voltage received from the bridge circuit to a current corresponding to the level of the received voltage and a resistor which converts the current output from the V/I converter to a voltage and outputs a variable DC unbalanced voltage thereacross, whereby the resonance phenomenon in the full range of the flow rate is prevented.
摘要翻译：用于测量内燃机的进气流量的开关控制型的热流量传感器包括：桥接电路，包括温度检测电阻器，差分放大电路，脉冲发生电路，电源控制电路和共振防止电路。放大电路放大桥路电路的输出。脉冲发生电路接收来自放大电路的输出，并生成具有对应于放大电路的输出电平的时间比的脉冲串。电源控制装置包括由脉冲发生电路的脉冲串导通和断开的开关晶体管，以及使来自晶体管的输出连续并将连续电压提供给桥式电路的平滑电路。共振防止电路包括相位滞后补偿电路，该相位滞后补偿电路包括串联连接在放大电路的差分放大器之间的电阻器和电容器，或包括V / I转换器的可变直流不平衡电压发生器，V / I转换器转换从桥接电路接收的电压到与接收电压的电平相对应的电流，以及将从V / I转换器输出的电流转换成电压的电阻，并输出其上的可变直流不平衡电压，由此在整个流量范围内的共振现象是防止了

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式