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公开(公告)号：DE69706353T2
公开(公告)日：2002-05-29
申请号：DE69706353
申请日：1997-04-07
Applicant: CANON KK
Inventor： BABA YOSHINOBU , IKEDA TAKESHI , SATO YUKO , ITABASHI HITOSHI , TOKUNAGA YUZO
Abstract: A magnetic coated carrier suitable for constituting a two-component type developer for use in electrophotography is composed of magnetic coated carrier particles comprising magnetic coated carrier particles comprising magnetic carrier core particles each comprising a binder resin and metal oxide particles, and a coating layer surface-coating each carrier core particle. The metal oxide particles have been subjected to a surface lipophilicity-imparting treatment. The magnetic carrier core particles have a resistivity of at least 1x10 ohm.cm, and the magnetic coated carrier has a resistivity of at least 1x10 ohm.cm. The magnetic coated carrier has a particle size distribution such that (i) it has a number-average particle size Dn of 5 - 100 mu m, (ii) it satisfies a relationship of Dn/ sigma >/= 3.5, wherein sigma denotes a standard deviation of number-basis particle size distribution of the carrier, and (iii) it contains at least 25 % by number of particles having particle sizes of at most Dn x 2/3.
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公开(公告)号：DE69706352T2
公开(公告)日：2002-04-25
申请号：DE69706352
申请日：1997-04-07
Applicant: CANON KK
Inventor： BABA YOSHINOBU , SATO YUKO , TOKUNAGA YUZO , IKEDA TAKESHI , ITABASHI HITOSHI
Abstract: A magnetic coated carrier suitable for constituting a two-component type developer for use in electrophotography is composed of magnetic coated carrier particles comprising magnetic carrier core particles and a resinous surface coated layer coating the magnetic carrier core particles. The carrier is suitably constituted so as to satisfy the condition of: (a) the magnetic carrier core particles has a resistivity of at least 1x10 ohm.cm, and the magnetic coated carrier has a resistivity of at least 1x10 ohm.cm, (b) the magnetic coated carrier has a number-average particle size of 1- 100 mu m and has such a particle size distribution that particles having particle sizes of at most a half of the number-average particle size occupy an accumulative percentage of at most 20 % by number, (c) the magnetic coated carrier has a shape factor SF-1 of 100 - 130, (d) the magnetic coated carrier has a magnetization at 1 kilo-oersted of 40 - 250 emu/cm , and (e) the resinous surface coating layer comprises a coating resin composition which in turn comprises a straight silicone resin and a coupling agent. The straight silicone resin includes trifunctional silicon and difunctional silicon in an atomic ratio of 100:0 - 40:60.
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公开(公告)号：DE69706352D1
公开(公告)日：2001-10-04
申请号：DE69706352
申请日：1997-04-07
Applicant: CANON KK
Inventor： BABA YOSHINOBU , SATO YUKO , TOKUNAGA YUZO , IKEDA TAKESHI , ITABASHI HITOSHI
Abstract: A magnetic coated carrier suitable for constituting a two-component type developer for use in electrophotography is composed of magnetic coated carrier particles comprising magnetic carrier core particles and a resinous surface coated layer coating the magnetic carrier core particles. The carrier is suitably constituted so as to satisfy the condition of: (a) the magnetic carrier core particles has a resistivity of at least 1x10 ohm.cm, and the magnetic coated carrier has a resistivity of at least 1x10 ohm.cm, (b) the magnetic coated carrier has a number-average particle size of 1- 100 mu m and has such a particle size distribution that particles having particle sizes of at most a half of the number-average particle size occupy an accumulative percentage of at most 20 % by number, (c) the magnetic coated carrier has a shape factor SF-1 of 100 - 130, (d) the magnetic coated carrier has a magnetization at 1 kilo-oersted of 40 - 250 emu/cm , and (e) the resinous surface coating layer comprises a coating resin composition which in turn comprises a straight silicone resin and a coupling agent. The straight silicone resin includes trifunctional silicon and difunctional silicon in an atomic ratio of 100:0 - 40:60.
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公开(公告)号：DE69416992T2
公开(公告)日：1999-08-26
申请号：DE69416992
申请日：1994-12-23
Applicant: CANON KK
Inventor： MAYAMA SHINYA , SATO YUKO , AOTO HIROSHI , ITABASHI HITOSHI , IKEDA TAKESHI , BABA YOSHINOBU , HAYASHI YASUKO , TOKUNAGA YUZO
Abstract: A carrier for use in electrophotography has carrier particles. The carrier particles each comprise a carrier core particle and a resin for coating the carrier core particle and having a resistivity of 10 OMEGA .cm or above under conditions of a temperature of 23 DEG C and a humidity of 50%RH. The carrier particles have an average particle diameter of not larger than 100 mu m and a resistivity of 10 OMEGA .cm or above. The carrier particles comprise not less than 80% by number of resin-coated carrier particles whose carrier core particles are each coated with a resin in a coverage of not less than 90%.
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公开(公告)号：DE69226315T2
公开(公告)日：1999-02-04
申请号：DE69226315
申请日：1992-08-27
Applicant: CANON KK
Inventor： HAYASHI TOSHIYUKI , IKEDA TAKESHI , TAKANO TOSHIYUKI , OGUSHI HIROSHI
IPC: H04N1/00
Abstract: A facsimile apparatus, which includes a recording unit adopting serial recording type ink-jet recording means, and which can arbitrarily supply one recording sheet to the recording unit without warping (curling) a recording sheet, and has an optimal arrangement capable of decreasing the installation area, includes a main body forming the outer surface of the facsimile apparatus, the recording unit arranged in the main body; an original reader arranged in an upper portion of the main body; an original insertion port for an original, which port is formed in the upper surface of the main body; a sheet insertion port for a recording sheet, which port is formed in the upper surface of the main body; an original discharge port for the original, which port is formed in the front surface of the main body; a sheet discharge port for the recording sheet, which port is formed in the front surface of the main body; an original convey path for conveying the original from the original insertion port to the original discharge port through the original reader; and a recording sheet convey path for conveying the recording sheet from the sheet insertion port to the sheet discharge port through the recording unit.
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Patent Agency Ranking
公开(公告)号：DE602006005841D1
公开(公告)日：2009-04-30
申请号：DE602006005841
申请日：2006-11-10
Applicant: CANON KK
Inventor： FUKUI TATSUKI , TOMINAGA AKIKO , KENMOKU TAKASHI , MINAMI MASATO , YANO TETSUYA , IKEDA TAKESHI , TANI ATSUSHI , FUJIMOTO NORIKAZU
IPC: C08F12/02 , C07C233/00 , G03G9/08
Abstract: There is provided a polymer including a unit represented by Chemical Formula (1): wherein R represents -A1-SO2R1; R1w and R1x are each independently a halogen atom or a hydrogen atom; R1y is a CH3 group, a halogen atom or a hydrogen atom; A01 is a substituted or unsubstituted aromatic ring structure or a substituted or unsubstituted heterocyclic structure; A1 is a substituted or unsubstituted aliphatic hydrocarbon structure, a substituted or unsubstituted aromatic ring structure or a substituted or unsubstituted heterocyclic structure; R1 is OH, a halogen atom, ONa, OK or OR1a; R1a is a substituted or unsubstituted aliphatic hydrocarbon structure, a substituted or unsubstituted aromatic ring structure or a substituted or unsubstituted heterocyclic structure.
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公开(公告)号：DE69938075T2
公开(公告)日：2009-01-22
申请号：DE69938075
申请日：1999-11-17
Applicant: CANON KK
Inventor： TAKAWA YAYOI , IKEDA TAKESHI , BABA YOSHINOBU , ITABASHI HITOSHI , TOKUNAGA YUZO , AYAKI YASUKAZU
Abstract: A toner is comprised of toner particles composed of at least a binder resin and a clorant, wherein the toner particles each have a coating layer formed on their surfaces in a state of particulate matters being stuck to one another. The particulate matters contains at least a silicon compound.
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公开(公告)号：DE602004017562D1
公开(公告)日：2008-12-18
申请号：DE602004017562
申请日：2004-11-18
Applicant: CANON KK
Inventor： AYAKI YASUKAZU , IKEDA TAKESHI , ISHIDA TOMOHITO , ITOH NOBUYUKI
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公开(公告)号：DE60323794D1
公开(公告)日：2008-11-13
申请号：DE60323794
申请日：2003-08-07
Applicant: CANON KK
Inventor： IKEDA TAKESHI
IPC: G03B7/085 , H04N5/235 , G03B11/00 , H04N5/238 , H04N101/00
Abstract: An image pickup apparatus capable of preventing a decline of resolution of a still image while keeping a dynamic range of exposure control. The image pickup apparatus capable of photographing with changing over a moving image and a still image, includes an iris mechanism for changing an amount of light input to an image pickup element by changing an aperture diameter, a filter unit, having a single density or a plurality of densities, for changing the amount of the light input to the image pickup element by its advancing towards and withdrawing from the aperture diameter of the iris mechanism, a unit for driving the iris mechanism and the filter unit independently, and a control unit for setting the filter unit in one of two types of states such as fully covering the aperture diameter of the iris mechanism and fully withdrawing from the aperture diameter in the still image photography.
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公开(公告)号：DE60116550T2
公开(公告)日：2006-08-17
申请号：DE60116550
申请日：2001-08-07
Applicant: CANON KK
Inventor： TAKAYA ITARU , IKEDA TAKESHI , KAWAHARA MASATAKA
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