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1. 发明授权

US5255351A Pulse-width modulation device 失效
标题翻译：脉宽调制装置
公开(公告)号：US5255351A
公开(公告)日：1993-10-19
申请号：US835898
申请日：1992-02-14
申请人： Itsuo Takanashi , Takashi Yamamura , Toshikatsu Ichitou , Kazunori Namiki
发明人： Itsuo Takanashi , Takashi Yamamura , Toshikatsu Ichitou , Kazunori Namiki
IPC分类号： B41J2/52 , B41J2/44 , G03G15/04 , G06F1/025 , H04N1/113 , H04N1/23 , H04N1/405 , G06K15/00
CPC分类号： G06F1/025 , H04N1/4056
摘要： A pulse-width modulation device for controlling shapes of dots printed out by a printer by regulating shapes of pulses of pulse-width modulation signals, which respectively represent gray levels of pixels of input image, according to code signals respectively indicating shapes of pulses of pulse-width modulation signals, each of which has a duration composed of time slots respectively corresponding to bits of image data representing a gray level of a pixel. The pulse-width modulation device is provided with a code converter for converting image data corresponding to each pixel of an input image into a predetermined code indicating a shape of a pulse of a corresponding pulse-width modulation signal and for outputting a code signal representing the predetermined code. The indicated shape of the pulse is formed by making the corresponding pulse modulation signal have a high level at a predetermined number of time slots thereof, which are serially counted from the time slot corresponding to the most significant bit of the image data or from the time slot corresponding to the least significant bit of the image data according to a gray level of each pixel. The pulse-width modulation device is further provided with a pulse generating circuit for receiving the code signal and for generating the pulse of the predetermined pulse-width modulation signal according to the code in response to a predetermined clock signal.

2. 发明授权

US5120624A Output device for proof and planograph using electrophotographic recording medium and printing medium thereby 失效
标题翻译：使用电子记录记录介质和打印介质进行验证和计算机的输出设备
公开(公告)号：US5120624A
公开(公告)日：1992-06-09
申请号：US531406
申请日：1990-06-04
申请人： Itsuo Takanashi , Takashi Yamamura , Toshikatsu Ichitou , Hiromichi Tai
发明人： Itsuo Takanashi , Takashi Yamamura , Toshikatsu Ichitou , Hiromichi Tai
IPC分类号： H04N1/29 , H04N1/407 , H04N1/60
CPC分类号： H04N1/29 , H04N1/4078 , H04N1/6011
摘要： An output apparatus for printing a proof sheet and making a planographic printing plate, comprising a printing image data generating means for producing the digital data of a plurality of different color images corresponding to a predetermined number of colors obtained by the color separation of the image data of an original to be printed; a proof sheet outputting means for sequentially forming a screened dot image of each color by using each color toner based on the printing image data derived from said printing image generating means; a planographic printing plate output means for forming a screened dot image of each color by using one recording medium for each color and the oil affinitive toner of each color based on the digital data of each color generated by said printing image data generating means. By providing further a means for compensating for the difference in characteristics between the printing of a proof sheet and the planographic printing (actual printing), one output apparatus can output both the data for printing a proof sheet and the data of the actual printing (the planographic printing).

3. 发明授权

US5065250A Image pick-up apparatus 失效
标题翻译：摄像装置
公开(公告)号：US5065250A
公开(公告)日：1991-11-12
申请号：US541903
申请日：1990-06-22
申请人： Itsuo Takanashi , Shintaro Nakagaki , Tsutou Asakura , Masato Furuya , Tetsuji Suzuki , Toshikatsu Ichitou , Takashi Yamamura , Hiromichi Tai
发明人： Itsuo Takanashi , Shintaro Nakagaki , Tsutou Asakura , Masato Furuya , Tetsuji Suzuki , Toshikatsu Ichitou , Takashi Yamamura , Hiromichi Tai
IPC分类号： G03G15/05 , G03G15/22
CPC分类号： G03G15/221 , G03G15/05
摘要： A charge recording and reproducing device is constituted by a transfer device which transfers a film shaped recording medium from one to other side, a recording head adapted to form an electrostatic latent image from an image formed on the recording medium, an eraser for erasing the electrostatic latent image, a developing apparatus for developing the electrostatic latent image, and a reading device for reading the developed image.
摘要翻译：电荷记录和再现装置由将成像记录介质从一个传送到另一侧的传送装置，适于从形成在记录介质上的图像形成静电潜像的记录头，用于擦除静电的擦除器潜像，用于显影静电潜像的显影装置和用于读取显影图像的读取装置。

4. 发明授权

US5017944A Control system for information recording laser beam 失效
标题翻译：信号记录激光束控制系统
公开(公告)号：US5017944A
公开(公告)日：1991-05-21
申请号：US486834
申请日：1990-03-01
申请人： Hiroki Kitamura , Itsuo Takanashi , Takashi Yamamura , Toshikatsu Ichitou , Hiromichi Tai
发明人： Hiroki Kitamura , Itsuo Takanashi , Takashi Yamamura , Toshikatsu Ichitou , Hiromichi Tai
IPC分类号： H04N1/40 , H04N1/405
CPC分类号： H04N1/4005 , H04N1/40037 , H04N1/4056
摘要： In a control system for an information recording laser beam, an intensity of a laser beam is varied in a predetermined variation pattern during each of sequential one-pixel periods. The laser beam is periodically activated and deactivated in synchronism with a change of the one-pixel periods. A duration of the activating the laser beam within each of the one-pixel periods is controlled in accordance with a density of each of pixels of an image to be recorded.
摘要翻译：在用于信息记录激光束的控制系统中，激光束的强度在每个连续的一个像素周期期间以预定的变化图案变化。与一个像素周期的变化同步地周期性地激活和去激活光束。根据要记录的图像的每个像素的密度来控制在每个一个像素周期内激活激光束的持续时间。

5. 发明授权

US4977417A Electrophotography system 失效
标题翻译：电子照相系统
公开(公告)号：US4977417A
公开(公告)日：1990-12-11
申请号：US450772
申请日：1989-12-14
申请人： Itsuo Takanashi , Toshikatsu Ichitou , Hiroki Kitamura , Takashi Yamamura , Koubun Sakagami , Atsushi Nakano
发明人： Itsuo Takanashi , Toshikatsu Ichitou , Hiroki Kitamura , Takashi Yamamura , Koubun Sakagami , Atsushi Nakano
IPC分类号： G03G13/22 , G03G15/04
CPC分类号： G03G13/22 , G03G15/04 , G03G15/0435
摘要： An electrophotography system for use in laser printers, printing machines and copying machines. The system includes a rototable drum having a photosensitive member which can take a first absorption spectrum state and a second absorption spectrum state, the variation from the first absorption spectrum state to the second absorption spectrum state being made by illuminating it with light whose intensity is above a predetermined threshold and whose wavelength is in a first predetermined wavelength region. Also included is an optical system including a light-emitting device for illumination of the photosensitive member so as to form thereon an electrostatic latent image, the optical system being arranged to directly illuminate the photosensitive member with light from the light-emitting device and further to illuminate it with reflected light from an original picture. The light-emitting device is arranged to emit light whose wavelength is in the first predetermined wavelength region and further light whose wavelength is in a second predetermined wavelength region. A control unit performs one selected from a laser-printing mode, a printing mode and a copying mode so as to form the corresponding electrostatic latent image on the photosensitive member by lights which are different in intensity and wavelength from each other.

6. 发明授权

US5087929A Method electrophotographic printing 失效
标题翻译：方法电子印刷
公开(公告)号：US5087929A
公开(公告)日：1992-02-11
申请号：US637171
申请日：1991-01-03
申请人： Itsuo Takanashi , Takashi Yamamura , Shintaro Nakagaki , Toshikatsu Ichito , Atsushi Nakano , Tadayuki Shimada , Toshio Konno
发明人： Itsuo Takanashi , Takashi Yamamura , Shintaro Nakagaki , Toshikatsu Ichito , Atsushi Nakano , Tadayuki Shimada , Toshio Konno
IPC分类号： G03G15/05 , G02F1/135 , G03G5/14 , G06K15/12
CPC分类号： G06K15/1295 , G02F1/135
摘要： A method of electrophotographic printing is disclosed. A recording medium comprising a photoconductive member and photo-modulation member laminated to each other, both exhibiting a photoelectric effect and a sensitized member made of a chargeable photoconductive member are arranged so as to face each other. A first electro-magnetic radiation beam (abbreviated in a beam hereinafter) which is intensity-modulated with data to be recorded is radiated to the recording medium at the photoconductive member side thereof to record the data to the photo-modulation member with the photoelectric effect. A second beam of constant intensity is radiated to the recording medium to emit therefrom a third beam exhibiting intensity variation subjected to the recorded data. The sensitized member is exposed with the third beam to form thereon a charge image corresponding to the recorded data. Toner is stacked onto the sensitized member formed with the charge image to form thereon a toner image. The toner image is then transferred onto a printing paper, thus to perform repeated printing utilizing the data once recorded to the recording medium.

7. 发明授权

US5226029A Electric charge image recording medium and recording/reproducing apparatus 失效
标题翻译：电荷图像记录介质和记录/再现装置
公开(公告)号：US5226029A
公开(公告)日：1993-07-06
申请号：US525400
申请日：1990-05-16
申请人： Itsuo Takanashi , Takashi Yamamura , Toshikatsu Ichito , Hiroki Kitamura , Hiromichi Tai
发明人： Itsuo Takanashi , Takashi Yamamura , Toshikatsu Ichito , Hiroki Kitamura , Hiromichi Tai
IPC分类号： G11B7/005 , G11B9/08 , G11B11/08 , G11B13/00 , G11B21/00 , G11B21/10 , G11B21/21
CPC分类号： G11B11/08 , G11B13/00 , G11B21/003 , G11B21/10 , G11B21/21 , G11B7/005 , G11B9/08
摘要： An electric charge recording/reproducing apparatus for focusing an electromagnetic radiation ray containing a recording object information signal onto a photoconductive layer member (PCL) in an electric charge image recording medium (D) comprising a laminate of at least an electric charge retention layer, member (CHL), photoconductive layer member (PCL) and a first electrode (E) using an objective lens (318) which is driven and displaced in an optical axis direction by an actuator (ACT) of an automatic focusing system; and to integratedly connect and fix a moving electrode (Em) onto the objective lens (318), the moving electrode (Em) being intended to generate an electric field for positioning the electric charge image recording medium (D) in the electric field of a predetermined electric field intensity, towards the electrode in, the electric charge image recording medium (D). The electric charge image recording medium (D) composed of a laminate of at least a first electrode (E), a photoconductive layer member (PCL), an optical modulation layer member (PML) and an electric charge retention layer member (CHL), the electric charge recording medium comprising said electric charge retention layer member (CHL) provided with an electric charge image pattern for tracking control recorded and formed.

8. 发明授权

US5493325A Graduation reproduction in optical recording 失效
标题翻译：光学记录中的毕业再现
公开(公告)号：US5493325A
公开(公告)日：1996-02-20
申请号：US266839
申请日：1994-06-28
申请人： Kazunori Namiki , Takashi Yamamura
发明人： Kazunori Namiki , Takashi Yamamura
IPC分类号： B41J2/52 , B41J2/44 , H04N1/113 , H04N1/23 , H04N1/40 , H04N1/405 , H04N1/21
CPC分类号： H04N1/40037
摘要： A graduation reproduction method in performing the halftone recording due to screen percentage by a light spot of a light beam with the light beam being intensity-modulated on the basis of digital image data in accordance with a binary recording technique. An illumination time value is reduced with respect to the normal illumination time value determined under a recording condition set to record a minimum recording dot on the recording medium. The reduced illumination time is set as a unit illumination time at the time of the recording of the halftone and the secondary scanning speed is reduced in correspondence with the rate of reduction of the unit illumination time relative to the normal illumination time value. Further, in the case that the recording operation is the screen percentage to be effected by the light spot only for the unit illumination time, the exposure is arranged so as not to be effected by the light spot, or arranged to be effected for the normal illumination time value.
摘要翻译：根据二进制记录技术，通过基于数字图像数据对光束进行强度调制的光束的光点进行由于屏幕百分比而进行的半色调记录的分级再现方法。相对于在设定为在记录介质上记录最小记录点的记录条件确定的正常照明时间值减小照明时间值。降低的照明时间被设定为在半色调记录时的单位照明时间，并且与根据单位照明时间相对于正常照明时间值的减小率相应地降低二次扫描速度。此外，在记录操作是仅在单位照明时间由光点实现的屏幕百分比的情况下，曝光被布置为不受光斑影响，或者被布置成为正常照明时间值。

9. 发明授权

US5366835A Graduation reproduction in optical recording 失效
标题翻译：光学记录中的毕业再现
公开(公告)号：US5366835A
公开(公告)日：1994-11-22
申请号：US16369
申请日：1993-02-11
申请人： Kazunori Namiki , Takashi Yamamura
发明人： Kazunori Namiki , Takashi Yamamura
IPC分类号： B41J2/52 , B41J2/44 , H04N1/113 , H04N1/23 , H04N1/40 , H04N1/405 , G03C5/00
CPC分类号： H04N1/40037
摘要： A graduation reproduction method in performing the halftone recording due to screen percentage by a light spot of a light beam with the light beam being intensity-modulated on the basis of digital image data in accordance with a binary recording technique. An illumination time value is reduced with respect to the normal illumination time value determined under a recording condition set to record a minimum recording dot on the recording medium. The reduced illumination time is set as a unit illumination time at the time of the recording of the halftone and the secondary scanning speed is reduced in correspondence with the rate of reduction of the unit illumination time relative to the normal illumination time value. Further, in the case that the recording operation is the screen percentage to be effected by the light spot only for the unit illumination time, the exposure is arranged so as not to be effected by the light spot, or arranged to be effected for the normal illumination time value.
摘要翻译：根据二进制记录技术，通过基于数字图像数据对光束进行强度调制的光束的光点进行由于屏幕百分比而进行的半色调记录的分级再现方法。相对于在设定为在记录介质上记录最小记录点的记录条件确定的正常照明时间值减小照明时间值。降低的照明时间被设定为在半色调记录时的单位照明时间，并且与根据单位照明时间相对于正常照明时间值的减小率相应地降低二次扫描速度。此外，在记录操作是仅在单位照明时间由光点实现的屏幕百分比的情况下，曝光被布置为不受光斑影响，或者被布置成为正常照明时间值。

10. 发明授权

US5442426A Wet type electro-photographic recording apparatus 失效
标题翻译：湿式电子照相记录装置
公开(公告)号：US5442426A
公开(公告)日：1995-08-15
申请号：US082884
申请日：1993-06-24
申请人： Takashi Yamamura , Kazunori Namiki , Toshiya Kobashi , Ryuji Horiuchi
发明人： Takashi Yamamura , Kazunori Namiki , Toshiya Kobashi , Ryuji Horiuchi
IPC分类号： G03G15/00 , G03G15/10
CPC分类号： G03G15/6597 , G03G15/10 , G03G2215/00801
摘要： The present invention discloses a wet type electro-photographic recording apparatus having a simple structure and a high quality without uneven density, and capable of miniaturizing the apparatus. Around a rotary drum, an exposing section, a pre-bath treatment portion and a developing portion are disposed. The exposing section is disposed on an upstream region in a rotating direction of the rotary drum with respect to a lower extreme position of the rotary drum, and in an upper portion of the rotary drum. The pre-bath treatment portion is disposed at a position between the upper portion where the exposing section is disposed and the lower extreme position of the rotary drum. The pre-bath treatment portion has at least a supply section provided at a high level position for dropping pre-bath liquid and a pre-bath coating section provided in a lower level position for coating the dropped pre-bath liquid on the electro-photograph recording sheet, whereby the electro-photographic recording is pre-bathed by using the high insulating liquid having phase solubility with electrically insulating liquid used as a wet type developer. The developing section having a developing electrode is disposed substantially close to the rotary drum and in an upstream in the rotating direction of the rotary drum with respect to the lower extreme position of the rotary drum.
摘要翻译：本发明公开了一种结构简单，质量好，密度不均匀，能够使装置小型化的湿式电子照相记录装置。围绕旋转鼓，暴露部分，预浴处理部分和显影部分。暴露部分相对于旋转鼓的下部极限位置设置在旋转磁鼓的旋转方向的上游区域上，并且位于旋转磁鼓的上部。预浴处理部设置在设置有曝光部的上部与旋转鼓的下端之间的位置。预浴处理部至少具有设置在高位置的用于滴加预浴液的供给部和设置在下位置的预浴涂布部，用于将滴下的预浴液涂布在电照片上记录纸，由此通过使用与用作湿式显影剂的电绝缘液体具有相溶性的高绝缘液体预先沐浴电照相记录。具有显影电极的显影部分相对于旋转鼓的下部极限位置基本上靠近旋转鼓并且在旋转鼓的旋转方向的上游设置。

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