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91. 发明专利

JP2003252617A POLYCRYSTAL SILICON SUBSTRATE AND PRODUCTION METHOD FOR SOLAR CELL 审中-公开
公开(公告)号：JP2003252617A
公开(公告)日：2003-09-10
申请号：JP2002054340
申请日：2002-02-28
申请人： CANON KK
发明人： MIZUTANI MASAKI , ISHIHARA SHUNICHI , SATO HIROSHI , YOSHINO TOSHIHITO , IWASAKI YUKIKO , UKIYO NORITAKA , IWANE MASAAKI , NISHIDA AKIYUKI , NAKAGAWA KATSUMI
IPC分类号： C01B33/02 , C30B11/00 , C30B29/06 , C30B33/00 , H01L21/208 , H01L31/04 , H01L31/068 , H01L31/0747 , H01L31/18
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a polycrystal silicon substrate having an excellent characteristic as that for a solar cell. SOLUTION: A unidirectional solidified silicon ingot 10 is cut in such a way that the normal direction of a main surface 14 of the polycrystal silicon substrate 13 is substantially perpendicular to the longitudinal direction of the crystal grain 11 of the ingot 10. COPYRIGHT: (C)2003,JPO

92. 发明专利

JP2003208026A IMAGE FORMING DEVICE 审中-公开
公开(公告)号：JP2003208026A
公开(公告)日：2003-07-25
申请号：JP2002008701
申请日：2002-01-17
申请人： CANON KK
发明人： YOSHIDA MASAHIRO , KATO JUNICHI , OBA HIROYUKI , SHIMIZU YASUSHI , SATO HIROSHI
IPC分类号： G03G15/02 , G03F7/20 , G03G9/08 , G03G15/08 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide an image forming device capable of maintaining high conductivity by allowing conductive power to stably exist on the surface of a contact charging member 2 and preventing the accumulating of remaining transfer toner on the surface of the member 2 as to the image forming device using a contact injection charging means using the conductive powder 41 as the charging means 2 of an image carrier 1, adopting a cleanerless system and capable of supplying the powder 41 from a developing means 3 to the charging means 2 through the surface of the image carrier 1. SOLUTION: The image forming device has a cleaning sequence for impressing AC voltage to the charging member 2, impressing DC voltage almost equal to the intermediate potential of surface potential of the image carrier 1 which is generated by the AC voltage impressed to the member 2 to the developing means 3 and impressing the DC voltage of polarity reversed from the charged polarity of toner to the transfer member 4. COPYRIGHT: (C)2003,JPO

93. 发明专利

JP2003207959A IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE 审中-公开
公开(公告)号：JP2003207959A
公开(公告)日：2003-07-25
申请号：JP2002008702
申请日：2002-01-17
申请人： CANON KK
发明人： OBA HIROYUKI , KATO JUNICHI , SATO HIROSHI , SHIMIZU YASUSHI , YOSHIDA MASAHIRO
IPC分类号： G03G15/02 , G03G9/08 , G03G15/00 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To prolong the life of an image forming apparatus by maintaining and recovering potential by electrification in the transfer type image forming apparatus of a cleaner-less system that an electrifying means 2 for an image carrier 1 is an electrifying means using conductive impalpable powder (m) and the conductive impalpable powder (m) is supplied to an abutting part (n) between the electrifying means 2 and the image carrier 1 from a developing means 3 through the image carrier 1. SOLUTION: The current value of the image carrier is detected at the exposure time. When the detected value is equal to or under a fixed value, it is judged a situation is such that the electrified amount of the image carrier is low (potential by electrification is low), and then the potential by electrification is changed, the supply amount of the conductive powder (m) is increased or the apparatus is stopped in compliance with the situation. If the potential by electrification is not improved yet though the supply amount of the conductive powder (m) is tried to increase several times, the apparatus is allowed to perform the above-mentioned operation. COPYRIGHT: (C)2003,JPO

94. 发明专利

JP2003131477A IMAGE FORMING DEVICE AND PROCESS CARTRIDGE 审中-公开
公开(公告)号：JP2003131477A
公开(公告)日：2003-05-09
申请号：JP2001323811
申请日：2001-10-22
申请人： CANON KK
发明人： YOSHIDA MASAHIRO , KATO JUNICHI , SHIMIZU YASUSHI , OBA HIROYUKI , SATO HIROSHI
IPC分类号： G03G15/02 , G03G15/00 , G03G15/06 , G03G15/08 , G03G15/09
摘要： PROBLEM TO BE SOLVED: To stably supply conductive particles by a developing means and to improve the maintainability of dark potential Vd while securing a margin to a leak image in a cleaner-less image forming device of a transfer system in which an electrifying means for an image carrier 1 is a contact electrifying means 2 using the conductive particles 41 and the conductive particles are supplied to the contact electrifying means through the surface of the image carrier from the developing means by externally adding the conductive particles to developer T in a developing means 11. SOLUTION: When it is assumed that the mean value of a gap between the image carrier 1 and a developer carrier 3a is D (μm) and the potential of a non-latent image part on the image carrier electrified by an electrifying member is Vd (v), and the peak voltage continued for a specified time of AC voltage on an opposite side to the potential Vd (v) with respect to the DC voltage of developing bias is Va (v) and the time when the voltage Va (v) is continued is T (s), 150 μm are satisfied.

95. 发明专利

JP2002365574A OPTICAL SCANNER AND IMAGING DEVICE USING THE SAME 失效
公开(公告)号：JP2002365574A
公开(公告)日：2002-12-18
申请号：JP2001174433
申请日：2001-06-08
申请人： CANON KK
发明人： SATO HIROSHI , KATO MANABU , SHIMOMURA HIDEKAZU , ISHIHARA KEIICHIRO
IPC分类号： B41J2/44 , G02B13/00 , G02B13/18 , G02B26/10 , G02B26/12 , H04N1/036 , H04N1/113
摘要： PROBLEM TO BE SOLVED: To provide an optical scanner capable of restraining the curve of a scanning line caused by an error in the arrangement of a single lens which is an imaging optical system to be very small, and to provide an imaging device using the optical scanner. SOLUTION: In this optical scanner, the single lens is used as the imaging optical system, and the cross-sectional shape in the main scanning direction of an emitting surface is a circular arc; and power in the subscanning direction is nearly concentrated on the emitting surface, whose cross sectional shape in the main scanning direction is the circular arc, and the shape (curvature) of the circular arc in the main scanning direction is decided, so that magnification in the subscanning direction is fixed.

96. 发明专利

JP2002341725A IMAGE FORMING APPARATUS, IMAGE CARRIER AND PROCESS CARTRIDGE 失效
公开(公告)号：JP2002341725A
公开(公告)日：2002-11-29
申请号：JP2001144270
申请日：2001-05-15
申请人： CANON KK
发明人： OBA HIROYUKI , KATO JUNICHI , SHIMIZU YASUSHI , SATO HIROSHI , YOSHIDA MASAHIRO
IPC分类号： G03G15/02 , G03G21/14
摘要： PROBLEM TO BE SOLVED: To obtain a cleaner-less image forming apparatus where a contact injection electrifying means 2 using conductive impalpable powder (m) is set as an electrifying means for an image carrier 1, and with which excellent image formation can be performed over a long term by dispersing load on the image carrier 1 generated at the time of starting and stopping the apparatus and restraining the partial deterioration of the image carrier 1. SOLUTION: This image forming apparatus is provided with a means 1a.S.100 for detecting the stopping position of the image carrier 1, and constituted so that the stopping position of the image carrier may be different from the last stopping position.

97. 发明专利

JP2002284375A IMAGE FORMING DEVICE 失效
公开(公告)号：JP2002284375A
公开(公告)日：2002-10-03
申请号：JP2001093636
申请日：2001-03-28
申请人： CANON KK
发明人： SATO HIROSHI
IPC分类号： G03G21/14 , B65H3/06 , B65H5/06 , B65H9/14
摘要： PROBLEM TO BE SOLVED: To provide an image forming device with a paper feeding device realized in high through put and high reliability when feeding the sheet material to an image forming unit. SOLUTION: When a carrying sensor 27 detects a rear end of a former sheet material S, the operation for preparing feeding of a following sheet material S is started, and a register sensor 7 detects re-carrying of the former sheet material S to the image forming unit by a register roller 8, and informs with the TMG signal 47 to start the feeding operation of the following sheet material S. With this structure, the feeding operation of the following sheet material S is carried out step by step, confirming the normal carrying of the former sheet material S, and these operation are done in the earliest timing. An engine control unit 29 sends a command for reserving paper feeding before the timing of starting the paper feeding, and an option device control unit 30 received the reservation performs the paper feeding by itself in the described timing.

98. 发明专利

JP2002148900A IMAGE FORMING DEVICE AND PROCESS CARTRIDGE 失效
公开(公告)号：JP2002148900A
公开(公告)日：2002-05-22
申请号：JP2000340147
申请日：2000-11-08
申请人： CANON KK
发明人： OBA HIROYUKI , KATO JUNICHI , SATO HIROSHI , YOSHIDA MASAHIRO , SHIMIZU YASUSHI
IPC分类号： G03G15/02
摘要： PROBLEM TO BE SOLVED: To prevent an image carrier and a contact electrostatic charging member from partially deteriorating. SOLUTION: In equation (1) providing W=(DC-2Y)/x, where DC is the outside diameter of an electrostatic charging roller 2, DD the outside diameter of a photoreceptor drum 1, Z the nip width between the both, Y the intrusion quantity of the electrostatic charging roller 2, and X the absolute value of the peripheral speed ratio of the both, the relation is satisfied that MIN (A, B) is a larger numeral between A and B, and LCM (A, B) is the least common multiple between A and B. Consequently, the frequency at which the same parts of the photoreceptor drum 1 and electrostatic charging roller 2 come into contact with each other is decreased below a certain value and the photoreceptor drum 1 and electrostatic charging roller 2 are prevented from partially deteriorating.

99. 发明专利

JP2002137992A METHOD OF GROWING LIQUID PHASE AND DEVICE THEREFOR 失效
公开(公告)号：JP2002137992A
公开(公告)日：2002-05-14
申请号：JP2000333057
申请日：2000-10-31
申请人： CANON KK
发明人： NAKAGAWA KATSUMI , NISHIDA AKIYUKI , ISHIHARA SHUNICHI , OTOSHI HIROKAZU , KONDO TAKAHARU , SATO HIROSHI , SAITO KEISHI , MATSUDA KOICHI
IPC分类号： C30B19/00 , C30B29/06 , H01L21/208
摘要： PROBLEM TO BE SOLVED: To provide a method of growing liquid phase able to improve a wettability of the melt and to grow well with good repeatability even for a substrate which can't get sufficient effect (i.e., repeatability and productive efficiency) by a conventional method. SOLUTION: The method of growing the liquid phase by which crystal layer is grown on the substrate soaked in the melt melting raw material of the crystal is made to supersaturate in a furnace keeping airtight from outside for growing liquid phase, is characterized in that prior to soaking the substrate into the melt, the substrate is plasma treated in a room inside of the furnace or a room able to communicate with the furnace keeping airtight from outside.

100. 发明专利

JP2002107523A DIFFRACTIVE OPTICAL ELEMENT AND OPTICAL SYSTEM USING THE SAME 失效
公开(公告)号：JP2002107523A
公开(公告)日：2002-04-10
申请号：JP2000302605
申请日：2000-10-02
申请人： CANON KK
发明人： SUGIYAMA TAKAYUKI , SATO HIROSHI , SHIMOMURA HIDEKAZU , FUKAZAWA MOTOMU
IPC分类号： G02B5/18 , G02B13/18
摘要： PROBLEM TO BE SOLVED: To provide a laminated diffractive optical element whose manufacturing is simple and which has a high optical performance is easily obtained, and to provide an optical system using the same. SOLUTION: In the diffractive optical element in which a plurality of diffraction gratings are laminated, two diffraction gratings which are adjacent along the direction of incidence of a light beam satisfy 10 μm

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