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1. 发明专利

JP2019019051A セラミックス造形用粉体、セラミックス造形物、およびその製造方法审中-公开
公开(公告)号：JP2019019051A
公开(公告)日：2019-02-07
申请号：JP2018130952
申请日：2018-07-10
申请人： CANON KK
发明人： YASUI NOBUHIRO , YABUTA HISATO , OSHIMA KANAKO , SAITO HIROSHI , OHASHI RYOTA , KUBOTA JUN , KAMIBAYASHI AKIRA
IPC分类号： C04B35/117 , B28B1/30 , C04B35/50 , C04B35/64 , C04B35/653
摘要：【課題】安定した造形が可能で、造形精度が確保された三次元造形物を得ることができるレーザー造形用粉体およびその使用方法を提供する。【解決手段】レーザー光の照射部における粉体を逐次焼結または溶融して凝固させることを繰り返して造形物を得るためのセラミックス造形用粉体であって、前記粉体は複数の組成物を含み、前記組成物の少なくとも1種類の組成物が、他の組成物より前記レーザー光に対し相対的に高い吸収を示す吸収体であり、前記レーザー光の照射により前記吸収体の少なくとも一部が前記レーザー光に対する吸収が相対的に低い他の組成物へ変化することを特徴とする粉体、および前記粉体を使用することを特徴とする粉体の使用方法。【選択図】なし

2. 发明专利

JP2012108437A CORONA DISCHARGE DEVICE, AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：JP2012108437A
公开(公告)日：2012-06-07
申请号：JP2010259018
申请日：2010-11-19
申请人： CANON KK
发明人： SAITO HIROSHI , INOUE HAKUJI
IPC分类号： G03G15/02 , H01T19/00
摘要： PROBLEM TO BE SOLVED: To provide a corona discharge device that reduces excessive amount of charge wire 106 to be taken up even after repeated take-up operation of the charge wire 106.SOLUTION: A corona discharge device includes a take-up control part 105 that counts the accumulated rotation amount of a take-up reel 110, and controls a take-up motor 107 so that the rotation amount of the take-up reel 110 is decreased relative to a unit take-up length of a charge wire 106 as the accumulated rotation amount of the take-up reel 110 increases. Accordingly, quantitative take-up of the charge wire 106 can be carried out even though the apparent reel diameter of the take-up reel 110 is increased as the take-up operation is repeated.

3. 发明专利

JP2010224062A IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：JP2010224062A
公开(公告)日：2010-10-07
申请号：JP2009069071
申请日：2009-03-19
申请人： CANON KK
发明人： SAITO HIROSHI
IPC分类号： G03G15/02
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of long term use of a driving motor which drives a cleaning member of a charging wire of an electrifier. SOLUTION: The image forming apparatus 100 includes a configuration in which the electrifier 1 is removed independently of the driving device 2 from an apparatus body 50 of the image forming apparatus. The driving device includes: a motor support member 104 which rockably supports a driving motor 110 such that the driving motor is brought into and out of contact with a spiral shaft 120; a first biasing member 105 for making the motor support member rock and biasing the driving motor toward the spiral shaft; and a second biasing member 103. When the electrifier is fixed at a predetermined position in the apparatus body, the second biasing member regulates a position in the longitudinal direction of the electrifier by pressing a pressing part 101a, provided in the electrifier, against the motor support member. When the electrifier is removed from the apparatus body, the second biasing member holds the driving motor at a position separated from the spiral shaft and also biases the electrifier in the removing direction from the apparatus body. COPYRIGHT: (C)2011,JPO&INPIT

4. 发明专利

JP2004012863A RANGE-FINDING/PHOTOMETRY DEVICE AND CAMERA 审中-公开
公开(公告)号：JP2004012863A
公开(公告)日：2004-01-15
申请号：JP2002167006
申请日：2002-06-07
申请人： CANON KK
发明人： SAITO HIROSHI
IPC分类号： G03B7/099 , G02B7/30 , G02B13/00 , G02B13/18 , G03B13/36
摘要： PROBLEM TO BE SOLVED: To provide a compact and low-priced range-finding/photometry device having high detecting accuracy required in a system provided with a range-finding system and a photometry system optically independently of a photographic system. SOLUTION: In the range-finding/photometry device detecting a subject distance by using luminous flux different from luminous flux transmitted through a photographic lens and also performing photometry by using the luminous flux different from the luminous flux transmitted through the photographic lens, a range-finding sensor and a photometry sensor are arranged on the same base plate, and a plurality of range-finding lenses and photometric lenses provided independently of each other are integrally formed so that a range-finding optical system including the range-finding lens is made an image forming system, and a photometry optical system including the photometric lens is made an image non-forming system. COPYRIGHT: (C)2004,JPO

5. 发明专利

JP2003186215A ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC DEVICE 审中-公开
公开(公告)号：JP2003186215A
公开(公告)日：2003-07-03
申请号：JP2001389093
申请日：2001-12-21
申请人： CANON KK
发明人： YOSHIMURA KIMIHIRO , MORIKAWA YOSUKE , NAKADA KOICHI , SAITO HIROSHI
IPC分类号： G03G5/06 , G03G5/147 , G03G21/18
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor which suppresses production of cracks in an electrophotographic photoreceptor during forming a protective layer or precipitation of a compound included in a charge transfer layer, which has high durability, no image defect and no accumulation of residual potential in repeated electrophotographic processes and which can maintain high picture quality, and to provide a process cartridge and an electrophotographic device. SOLUTION: In the electrophotographic photoreceptor, the protective layer contains at least conductive particles and a curing phenol resin, and the charge transfer layer contains at least one kind of compound expressed by general formula (1) as a charge transfer material. The process cartridge and the electrophotographic device have the above photoreceptor. In formula (1), X and Y are groups expressed by formula (2) or formula (3), n is an integer 0 or 1 and each of R 1 to R 7 is an alkyl group, an aryl group or the like. COPYRIGHT: (C)2003,JPO

6. 发明专利

JP2002350930A FINDER SYSTEM AND OPTICAL EQUIPMENT USING THE SAME 失效
公开(公告)号：JP2002350930A
公开(公告)日：2002-12-04
申请号：JP2001155003
申请日：2001-05-24
申请人： CANON KK
发明人： SAITO HIROSHI
IPC分类号： G03B13/06 , G02B17/08 , G02B25/00
摘要： PROBLEM TO BE SOLVED: To obtain a finder system where an entire optical system is small-sized and thinned, and optical equipment using the finder system. SOLUTION: The finder system has an objective lens system OL equipped with a plurality of lens surfaces, an image inverting optical system CL positioned more backward than an object image formed in the vicinity of a field frame 6 by the lens system OL and changing the object image to an erect image, and an eyepiece system EL for observing the erect image through the optical system CL in order from an object side. Then, the lens system OL has a 1st reflection surface 2 folding an optical path between the plurality of lens surfaces thereof and also the optical system CL has a roof reflection surface 8C.

7. 发明专利

JP2001125435A ELECTROPHOTOGRAPHIC SENSITIVE BODY, PROCESS CARTRIDGE, AND IMAGE FORMING DEVICE 失效
公开(公告)号：JP2001125435A
公开(公告)日：2001-05-11
申请号：JP30858099
申请日：1999-10-29
申请人： CANON KK
发明人： SAITO HIROSHI , SAKO SHUNKAI , TSUJI HARUYUKI , TAKAGI SHINJI
IPC分类号： G03G21/00 , G03G5/147 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic sensitive body which can obtain an image of high quality free of density unevenness, a white void, and scavenging and has high durability and long life, a process cartridge and an image forming device which use the electrophotographic sensitive body, for image formation of a counter-directional development system. SOLUTION: The electrophotographic sensitive body which has at least a photosensitive layer on a cylindrical conductive base body and also has one or both of a drive transmission member and a bearing member mounted on opening parts at both ends of the cylinder has a surface protection layer on the photosensitive layer and is used for an image forming device which moves a developer carrier in a counter direction for the movement direction of the electrophotographic sensitive body surface, and vibration precision at the time of the center axes of one or both of the drive transmission member and bearing member is

8. 发明专利

JP2001125300A ELECTROPHOTOGRAPHIC PHOTORECEPTOR, METHOD FOR ELECTROPHOTOGRAPHIC IMAGE FORMING, AND ELECTROPHOTOGRAPHIC DEVICE 失效
公开(公告)号：JP2001125300A
公开(公告)日：2001-05-11
申请号：JP30858399
申请日：1999-10-29
申请人： CANON KK
发明人： SAKO SHUNKAI , TSUJI HARUYUKI , TAKAGI SHINJI , SAITO HIROSHI
IPC分类号： G03G15/16 , G03G5/147 , G03G15/04 , G03G15/043
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor, and an electrophotographic image forming method, and an electrophotographic device that can obtain an excellent image quality by suppressing moire and interference fringes on an image. SOLUTION: In the electrophotographic photoreceptor used in the electrophotographic image forming method to form an image on a transfer material by executing at least electrifying, exposure, developing and transfer processes, the exposure process is executed by dot-like exposure, and exposure is set to be equal to or less than 4/5 times of a light quantity optically attenuated up to a residual electrostatic charge area after exposure, and also the surface layer of the electrophotographic photoreceptor incorporates a light scattering agent whose number average primary particle size is

9. 发明专利

JP2000347100A VARIABLE POWER FINDER 失效
公开(公告)号：JP2000347100A
公开(公告)日：2000-12-15
申请号：JP15605999
申请日：1999-06-03
申请人： CANON KK
发明人： SAITO HIROSHI
IPC分类号： G02B15/00 , G03B13/02
摘要： PROBLEM TO BE SOLVED: To obtain a high-performance real image type variable power finder having simple constitution of two groups and a comparatively wide angle, and having a variable power ratio exceeding 4 and the wide angle of visibility. SOLUTION: This variable power finder is provided with an objective lens system having a variable power function, an image inverting optical system making an object image formed by the objective lens system an erect image, and an ocular for observing the erect image through the image inverting optical system in order from an object side. In the finder, the objective lens system is provided with two lens groups, that is, a 1st group including one aspherical surface, consisting of a negative lens and having positive refractive power, and a 2nd group including two aspherical surfaces, consisting of a positive lens and a negative lens and having positive refractive power, and satisfies conditions 3

10. 发明专利

JP2000199865A FINDER OPTICAL SYSTEM 失效
公开(公告)号：JP2000199865A
公开(公告)日：2000-07-18
申请号：JP37764098
申请日：1998-12-30
申请人： CANON KK
发明人： SAITO HIROSHI
IPC分类号： G02B25/00 , G02B15/177
摘要： PROBLEM TO BE SOLVED: To obtain a finder optical system performing focusing by correcting the deviation of visibility based on temperature information or the like. SOLUTION: An objective lens consisting of a 1st group lens 1, a 2nd group lens 2 and a 3rd group lens 3, a roof prism 4 for inverting an image, a field lens 5, a field frame 6, a half mirror 7 and a contact lens 8 moving on an optical axis are arrayed along an optical path from a subject side, and an information recording surface 9 is arranged at the rear of the mirror 7. The value of the deviation of the visibility by temperature change is also changed by photographing magnification, and the visibility of the finder is changed according to a distance to the subject and the amount thereof is changed according to the finder magnification. By calculating the deviation of the visibility decided according to temperature, subject distance and photographing magnification and moving the objective lens on the optical axis, the visibility is automatically adjusted.

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