Patents by Inventor Yoshihito Osari
Yoshihito Osari has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7333742Abstract: An image forming apparatus changes over an electric potential on an image bearing member in response to an attenuation region in which a remaining potential on a developing member is attenuating after a developing bias applied to the developing member has been turned off after completion of an image forming operations. Accordingly, it is possible to mitigate adherence of developer due to a large potential difference between the developing member and the image bearing member.Type: GrantFiled: May 27, 2005Date of Patent: February 19, 2008Assignee: Canon Kabushiki KaishaInventors: Kuniyasu Kimura, Eiichi Motoyama, Yoshihito Osari, Hiroaki Tomiyasu, Takahiko Yamaoka, Yuichi Yamamoto
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Patent number: 7307754Abstract: There is provided an image forming apparatus which is capable of quickly performing measurements required for obtaining a proper image density. The image forming apparatus having a plurality of image forming apparatuses performs an image density adjustment control process by carrying out a maximum density control process at a reference image forming speed, and carrying out a density gradation control process at each of the plurality of image forming speeds. Image forming conditions for carrying out the density gradation control process at speeds other than the reference image forming speed are determined by performing operation on image forming conditions determined by the maximum density control process carried out at the reference image forming speed.Type: GrantFiled: September 29, 2003Date of Patent: December 11, 2007Assignee: Canon Kabushiki KaishaInventors: Eiichi Motoyama, Mitsuhiko Sato, Yoshihito Osari, Takashi Fujimori
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Publication number: 20070211290Abstract: There is provided a printer control apparatus which can be applied to an image forming apparatus in which a plurality of types of readers and a plurality of types of printers can be connected to a single controller, and which enable efficient transfer of image data from the reader to the printer via an image memory of the controller. The controller receives image data from a reader and temporarily stores the same in an image memory, and transmits the stored image data to a printer. The controller acquires a reader processing speed from the reader and a printer processing speed from the printer, and determines, while the image data is being written to the image memory, timing for transmitting the image data written in the memory to the printer according to a difference between the reader processing speed and the printer processing speed and a sub-scan size of the image data.Type: ApplicationFiled: May 14, 2007Publication date: September 13, 2007Applicant: CANON KABUSHIKI KAISHAInventors: Nobuo SEKIGUCHI, Masahiro SERIZAWA, Yoshihito OSARI, Akinobu NISHIKATA
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Publication number: 20070189792Abstract: An image forming apparatus changes over an electric potential on an image bearing member in response to an attenuation region in which a remaining potential on a developing member is attenuating after a developing bias applied to the developing member has been turned off after completion of an image forming operations. Accordingly, it is possible to mitigate adherence of developer due to a large potential difference between the developing member and the image bearing member.Type: ApplicationFiled: April 26, 2007Publication date: August 16, 2007Applicant: Canon Kabushiki KaishaInventors: Kuniyasu KIMURA, Eiichi MOTOYAMA, Yoshihito OSARI, Hiroaki TOMIYASU, Takahiko YAMAOKA, Yuichi YAMAMOTO
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Patent number: 7233410Abstract: There is provided a printer control apparatus which can be applied to an image forming apparatus in which a plurality of types of readers and a plurality of types of printers can be connected to a single controller, and which enable efficient transfer of image data from the reader to the printer via an image memory of the controller. The controller receives image data from a reader and temporarily stores the same in an image memory, and transmits the stored image data to a printer. The controller acquires a reader processing speed from the reader and a printer processing speed from the printer, and determines, while the image data is being written to the image memory, timing for transmitting the image data written in the memory to the printer according to a difference between the reader processing speed and the printer processing speed and a sub-scan size of the image data.Type: GrantFiled: September 25, 2002Date of Patent: June 19, 2007Assignee: Canon Kabushiki KaishaInventors: Nobuo Sekiguchi, Masahiro Serizawa, Yoshihito Osari, Akinobu Nishikata
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Patent number: 7218425Abstract: In image reading apparatus capable of performing a read-while-feed operation in which an original is read while being fed by an image sensor placed at a fixed position, presence/absence of dust and/or dirt on a platen is detected, and, in a case where dust and/or dirt are detected at all of a plurality of predetermined positions by said detector, the read-while-feed operation is inhibited and the presence of dust and/or dirt is notified to a user. When, removal of dust and/or dirt on the platen is detected in a state that the read-while-feed operation is inhibited, the read-while-feed operation is allowed.Type: GrantFiled: December 13, 2001Date of Patent: May 15, 2007Assignee: Canon Kabushiki KaishaInventors: Tadaaki Saida, Yoshihito Osari, Akinobu Nishikata, Nobuo Sekiguchi, Rieko Akiba, Yuichiro Maeda
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Publication number: 20070071460Abstract: An image forming apparatus includes a position detection circuit which detects the registration error amount between a recording medium conveyance unit and an image forming unit positioned by a positioning mechanism, on the basis of reading of a reference pattern arranged on either unit, and a controller which calculates a correction amount on the basis of the detected registration error amount and controls the operation timings of the image forming unit and recording medium conveyance unit in accordance with the correction amount.Type: ApplicationFiled: September 28, 2006Publication date: March 29, 2007Applicant: CANON KABUSHIKI KAISHAInventors: Noriyoshi CHIZAWA, Yoshihito OSARI, Michio KAWASE, Masashi OYUMI, Shigeo HATA, Kiyoshi OKAMOTO
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Publication number: 20070053715Abstract: An image forming apparatus has a configuration in which a plurality of subsystems, each having a specific function, are interchangeably connected to a base platform. Each of the subsystems includes a plurality of units having a variety of different performances. A control unit is capable of control each of the subsystems so that the image forming apparatus flexibly provides functions that are tailored to individual users' requirements.Type: ApplicationFiled: August 31, 2006Publication date: March 8, 2007Applicant: CANON KABUSHIKI KAISHAInventors: Michio Kawase, Noriyoshi Chizawa, Masashi Oyumi, Shigeo Hata, Yoshihito Osari, Kiyoshi Okamoto
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Publication number: 20070053021Abstract: A plurality of subsystems having diverse individual functions can be connected to an image forming apparatus. Each of the subsystems is made up of, for example, plural kinds of units which are different in performance from each other. Each of the units has inherent information related to the performance, and decides the operation specification of the entire image forming apparatus according to the combination of those units.Type: ApplicationFiled: September 5, 2006Publication date: March 8, 2007Applicant: CANON KABUSHIKI KAISHAInventors: Yoshihito OSARI, Michio KAWASE, Noriyoshi CHIZAWA, Masashi OYUMI, Shigeo HATA, Kiyoshi OKAMOTO
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Publication number: 20070013977Abstract: In image reading apparatus capable of performing a read-while-feed operation in which an original is read while being fed by an image sensor placed at a fixed position, presence/absence of dust and/or dirt on a platen is detected, and, in a case where dust and/or dirt are detected at all of a plurality of predetermined positions by said detector, the read-while-feed operation is inhibited and the presence of dust and/or dirt is notified to a user. When, removal of dust and/or dirt on the platen is detected in a state that the read-while-feed operation is inhibited, the read-while-feed operation is allowed.Type: ApplicationFiled: September 21, 2006Publication date: January 18, 2007Inventors: Tadaaki Saida, Yoshihito Osari, Akinobu Nishikata, Nobuo Sekiguchi, Rieko Akiba, Yuichiro Maeda
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Publication number: 20060269300Abstract: An image forming apparatus that is capable of normally performing second side printing on a transfer material, even if the transfer material put on standby after completion of first side printing is pulled out by a user. A transfer material having image formed on its first side is fed until it is partly exposed to the outside of a printer, and is then fed to a refeeding path in the printer and further fed to a standby position prior to image formation on the second side of the transfer material. When it is detected that the transfer material caused to stop at the standby position is pulled out by a user, a warning to stop pulling out the transfer material is given to the user.Type: ApplicationFiled: May 30, 2006Publication date: November 30, 2006Applicant: Canon Kabushiki KaishaInventors: Eiichi Motoyama, Yoshihito Osari, Kuniyasu Kimura, Hiroaki Tomiyasu, Takahiko Yamaoka, Yuichi Yamamoto
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Publication number: 20060269340Abstract: An image forming apparatus capable of reducing a part of a sheet exposed outside the apparatus on standby after finishing printing a first side in both-sided printing. A transfer material P having an image formed on its first side is fed until a part thereof gets exposed outside a full-color printer 1 and is fed to a refeeding path in the full-color printer 1. The transfer material P inverted by a flapper 44 is fed to a standby position to form an image on a second side thereof and is stopped there. In the case where a preparation for forming the image on the second side is not completed, the standby position for having the transfer material P stopped is changed corresponding to length of the inverted transfer material P in a feeding direction.Type: ApplicationFiled: May 30, 2006Publication date: November 30, 2006Applicant: Canon Kabushiki KaishaInventors: Yoshihito Osari, Eiichi Motoyama, Kuniyasu Kimura, Hiroaki Tomiyasu, Takahiko Yamaoka, Yuichi Yamamoto
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Publication number: 20060250635Abstract: The invention provides an information processing apparatus in which print data is inputted, whether or not authentication information has been added to the print data is discriminated, and an output destination of the print data is controlled on the basis of the discrimination result, thereby making it possible to prevent the print data from being sent to an image output apparatus of a low security level.Type: ApplicationFiled: July 7, 2006Publication date: November 9, 2006Applicant: Canon Kabushiki KaishaInventors: Michiharu Masuda, Tsunao Hombo, Shunichi Komatsu, Michio Kawase, Yoshihito Osari
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Patent number: 7119926Abstract: In an image reading apparatus having a document feeder adapted to convey an original, an image sensor adapted to read the original conveyed to a platen by the document feeder, and a memory adapted to store image data for each pixel, control is executed to cause the image sensor to execute reading at a predetermined position a plurality of number of times without placing any original on the platen while driving the original convey member of the document feeder, the image data of the original output from the image sensor is compared with the image data of a corresponding pixel, which is stored in the memory, every time the original convey member is read, the image data stored in the memory is updated to data having a larger value, and the presence/absence and position of dust and/or dirt on the platen are detected on the basis of the number of times of reading the original convey member and the image data stored in the memory after the end of a plurality of number of times of reading the original convey member.Type: GrantFiled: December 10, 2001Date of Patent: October 10, 2006Assignee: Canon Kabushiki KaishaInventors: Shoji Takeda, Yoshihito Osari, Akinobu Nishikata, Nobuo Sekiguchi, Hidenori Sunada, Tadaaki Saida, Yuichiro Maeda
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Publication number: 20060222352Abstract: An information processing apparatus determines whether an authentication portion on an image forming apparatus side can authenticate user authentication information input on the information processing apparatus side. If it is determined that the authentication portion on the image forming apparatus side can authenticate the user authentication information input on the information processing apparatus side, transmission of image data from the information processing apparatus to the image forming apparatus is controlled.Type: ApplicationFiled: April 5, 2006Publication date: October 5, 2006Applicant: CANON KABUSHIKI KAISHAInventors: Michio Kawase, Shunichi Komatsu, Michiharu Masuda, Yoshihito Osari, Tsunao Hombo
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Publication number: 20060104653Abstract: An image forming apparatus includes an image bearing member; toner image formation means for forming a toner image on the image bearing member; removing means for removing deposited matter deposited on the image bearing member; detecting means for detecting a toner image to be detected, formed on the toner image formation means; control means for controlling a toner image forming condition of the toner image forming means in accordance with a result of detection of the toner image to be detected by the detecting means; the apparatus being operable in a mode in which the removing means operates to remove the deposition, and the detecting means operates to detect the toner image to be detected, executing means for executing an operation in the mode; and an operating portion for manually starting execution of the operation in the mode by the executing means.Type: ApplicationFiled: November 1, 2005Publication date: May 18, 2006Applicant: Canon Kabushiki KaishaInventors: Yuichi Yamamoto, Eiichi Motoyama, Yoshihito Osari, Kuniyasu Kimura, Hiroaki Tomiyasu, Takahiko Yamaoka, Jun Tomine, Yuichi Ikeda, Yasushi Takeuchi
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Publication number: 20050271405Abstract: An image forming apparatus changes over an electric potential on an image bearing member in response to an attenuation region in which a remaining potential on a developing member is attenuating after a developing bias applied to the developing member has been turned off after completion of an image forming operations. Accordingly, it is possible to mitigate adherence of developer due to a large potential difference between the developing member and the image bearing member.Type: ApplicationFiled: May 27, 2005Publication date: December 8, 2005Applicant: Canon Kabushiki KaishaInventors: Kuniyasu Kimura, Eiichi Motoyama, Yoshihito Osari, Hiroaki Tomiyasu, Takahiko Yamaoka, Yuichi Yamamoto
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Publication number: 20050220465Abstract: In an image forming apparatus which has an image bearing member for bearing a toner image, a transferring device for transferring the toner image, a cleaning device for recovering waste toner which remains on the image bearing member, a containing device for containing the waste toner which is recovered, a near-end position detecting device, an image information detecting device for detecting information about an image on the image bearing member, and an image formation state recognizing device for recognizing an image formation state, the image forming apparatus including a full determining device which accumulates pixel amount on the basis of detection result by the image information detecting device, and recognition result by the image formation state recognizing device when it is detected by the near-end position detecting device that the waste toner is contained to a near-end position in the containing device, and determines that the waste toner becomes full when accumulation result reaches a predeterminType: ApplicationFiled: March 24, 2005Publication date: October 6, 2005Applicant: Canon Kabushiki KaishaInventors: Takahiko Yamaoka, Eiichi Motoyama, Yoshihito Osari, Kuniyasu Kimura, Hiroaki Tomiyasu, Yuichi Yamamoto
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Patent number: 6892033Abstract: An image forming apparatus includes an apparatus main assembly, and a process cartridge detachably mountable to the apparatus main assembly, including a driving force receiver to be connected to a driver of the apparatus main assembly and a non-contact memory for carrying out non-contact data communication with a receiver of the apparatus main assembly, wherein the apparatus main assembly performs rotational driving of the driver before reading out data from the non-contact memory.Type: GrantFiled: October 22, 2003Date of Patent: May 10, 2005Assignee: Canon Kabushiki KaishaInventors: Hidenori Sunada, Eiichi Motoyama, Yoshihito Osari, Satoru Yamamoto
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Publication number: 20050029353Abstract: An RFID tag formed on an original includes a storage unit which stores data representing, e.g., the number of times of scan of the original and the generation from a parent original, and a transmitter/receiver which transmits and receives the data by radio. A read/write circuit receives data from an RFID tag of an original by radio. On the basis of the received data, read of the original is controlled. While the original is being read, the received data is edited in accordance with the control. The read/write circuit transmits and writes the edited data in the RFID tag.Type: ApplicationFiled: July 28, 2004Publication date: February 10, 2005Applicant: Canon Kabushiki KaishaInventors: Keizo Isemura, Toshio Hayashi, Mitsushige Murata, Masatoshi Tanabe, Junichi Intoh, Yoshihiro Funamizu, Yoshihito Osari