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1. 发明专利

JPH0436769A IMAGE RECORDER 失效
公开(公告)号：JPH0436769A
公开(公告)日：1992-02-06
申请号：JP14142290
申请日：1990-06-01
申请人： HITACHI LTD , HITACHI METALS LTD , HITACHI KOKI KK
发明人： OHARA SHUNICHI , OKUNA KENJI , OBA SAYOKO , NAKAJIMA ISAO , OUCHI KATSUFUMI , IIMURA TSUTOMU , KOJIMA RYOJI
IPC分类号： G03G15/05 , G03G15/00
摘要： PURPOSE:To obtain a high-quality toner image having high black density without fogging by providing a magnetic field generating means for generating a magnetostatic field in a hollow sleeve consisting of non-magnetic material which is provided on a recording electrode side and on a downstream side in the recording direction of the recording electrode. CONSTITUTION:The magnetic field generating means 11 for attracting a non-image toner which is just after passing through a very small gap part to the outer periphery of the sleeve 3 and a means for turning the sleeve 3 are provided in the cylindrical sleeve 3 consisting of the non-magnetic material which is provided in a space formed by the recording electrode 5 and a recording member and on the downstream side in the moving direction of the electrode 5. By the action of the carrying force of the recording member, the means 11 removes the non-image toner which flows out from the very small gap part at the edge of the electrode 5 from the recording member with the edge part of the electrode 5 spatially and temporarily in an instant by overcoming a gravity field, so that charges are not moved from image forming toner which is electrostatically charged to the non-image toner and the high-quality image having distinct image contour and high black density without fogging is obtained.

2. 发明专利

JP2005067852A Paper feeder and image forming device with the same 审中-公开
标题翻译：纸张进纸器和图像形成装置
公开(公告)号：JP2005067852A
公开(公告)日：2005-03-17
申请号：JP2003302263
申请日：2003-08-27
申请人： Hitachi Ltd , Ricoh Printing Systems Ltd , リコープリンティングシステムズ株式会社 , 株式会社日立製作所
发明人： SEKI HIROYUKI , OHARA SHUNICHI , YAMAUCHI YOSHIAKI , IKESUE TAKAMITSU , KIKUCHI KAZUO , OKUMIYA SEIJI
IPC分类号： B65H3/52
CPC分类号： B65H3/5223 , B65H2220/09 , B65H2402/31 , B65H2403/60
摘要： PROBLEM TO BE SOLVED: To provide a paper feeder capable of preventing abnormal noises that occur in a separation pad during paper feed without degrading feeding performance.
SOLUTION: This paper feeder is configured to dissipate the vibration energy of the separation pad 201 by fixing a shock absorber 30 to the separation pad 201 and making the shock absorber 30 vibrated when the separation pad 201 is shaken by paper 16 at the occurrence of stick slip between the paper 16 and the separation pad 201 during paper feed. By this configuration, the vibration of the separation pad 201 is suppressed to the minimum, thereby preventing the abnormal noises.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够防止在进纸期间在分离垫中发生的异常噪声而不降低进给性能的供纸器。解决方案：该供纸器被配置为通过将减震器30固定到分离垫201并使得当分离垫201在纸张16处被振动时使减震器30振动，从而消散分离垫201的振动能量在进纸期间纸16和分离垫201之间发生粘滑。通过这种结构，分离垫201的振动被抑制到最小，从而防止异常噪声。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2003202775A BELT TYPE PHOTORECEPTOR UNIT AND MULTICOLOR IMAGE FORMING APPARATUS USING THE SAME 审中-公开
公开(公告)号：JP2003202775A
公开(公告)日：2003-07-18
申请号：JP2002002546
申请日：2002-01-09
申请人： HITACHI LTD
发明人： FUJITA MASAYA , OHARA SHUNICHI , TAKEKOSHI TETSUJI , MIKAMI KATSUMASA , HANAJIMA TORU
IPC分类号： G03G15/01 , G03G15/00 , G03G15/16 , G03G21/00
摘要： PROBLEM TO BE SOLVED: To provide a belt type photoreceptor unit by which high accuracy image quality is stably obtained by restraining the positional deviation of each toner image. SOLUTION: In a belt type photoreceptor unit 112 equipped with a driving roller 119, one or more driven rollers 101 and the belt type photoreceptor 22 laid from the roller 119 to the roller 101 and driven to be rotated by the roller 119, many fine recessed parts 206 for storing foreign matter particulates 201 such as toner are formed on the peripheral surface of the roller 119. COPYRIGHT: (C)2003,JPO

4. 发明专利

JP2003015433A Image forming device 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2003015433A
公开(公告)日：2003-01-17
申请号：JP2001197658
申请日：2001-06-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： OHARA SHUNICHI , NAKANO MASARU , WAKAMATSU KAZUHIRO , SASAKI AKIRA , KIKUCHI KAZUO , SAITO MASAHIKO , ONOSE ATSUSHI , MATSUMOTO SHOGO , SHIMADA AKIRA , YAMAMOTO MASASHI
IPC分类号： G03G15/16 , G03G21/00
摘要： PROBLEM TO BE SOLVED: To provide an image forming device capable of outputting a high quality image by a simple structure. SOLUTION: The image forming device 1 has a photoreceptor belt 3 which is carried in order to form a toner image on the surface thereof, a driving means 4 which drives the photoreceptor belt, a developing means 15 for forming a toner image on the photoreceptor belt, and an intermediate transfer belt 2 which is disposed in contact with the photoreceptor belt, is driven by the photoreceptor belt, and on which the toner image on the photoreceptor belt is transferred. Carried paper is pressed against the surface of the intermediate transfer belt and thus the toner image on the intermediate transfer belt is transferred.
摘要翻译：要解决的问题：提供能够通过简单的结构输出高质量图像的图像形成装置。解决方案：图像形成装置1具有为了在其表面上形成调色剂图像而携带的感光带3，驱动感光带的驱动装置4，用于在感光带上形成调色剂图像的显影装置15 和与感光带接触设置的中间转印带2由感光带驱动，感光带上的调色剂图像被转印到感光带上。携带的纸压在中间转印带的表面上，因此中间转印带上的调色剂图像被转印。

5. 发明专利

JP2001125433A PHOTOSENSITIVE BELT CONVEYING DEVICE AND PRINTER USING SAME 失效
公开(公告)号：JP2001125433A
公开(公告)日：2001-05-11
申请号：JP30797099
申请日：1999-10-29
申请人： HITACHI LTD
发明人： OHARA SHUNICHI , MIKAMI KATSUMASA , TAKEKOSHI TETSUJI , HANAJIMA TORU
IPC分类号： G03G21/00 , F16H7/12
摘要： PROBLEM TO BE SOLVED: To solve the problem that the join of a guide member moves beyond a roller end and one-sidedness can not be suppressed when the speed of deviation to one side is fast although the one-sidedness was prevented before by providing guide members inside both the width-directional ends of a photosensitive body belt and applying roller end parts thereto. SOLUTION: A guide member has a join, for which the interval of an upstream end part in a conveyance direction is made narrower than the interval of a downstream end part.

6. 发明专利

JP2000305415A ELECTROPHOTOGRAPHIC DEVICE 失效
公开(公告)号：JP2000305415A
公开(公告)日：2000-11-02
申请号：JP11455199
申请日：1999-04-22
申请人： HITACHI LTD
发明人： HANAJIMA TORU , TAKEKOSHI TETSUJI , KIKUCHI KAZUO , OKANO TADASHI , NAKANO MASARU , OHARA SHUNICHI , SUZAKI MASABUMI , MIKAMI KATSUMASA
IPC分类号： G03G15/16 , G03G15/00 , G03G21/00
摘要： PROBLEM TO BE SOLVED: To provide a photoreceptor belt driving device and an electrophotographic device whose reliability is high and whose service life is long and which are constituted so that the traveling position of a photoreceptor belt can be adjusted even after an electrophotographic device main body is assembled. SOLUTION: The photoreceptor belt driving device and the electrophotographic device are constituted so that the bias of the photoreceptor belt 1 occurring because a projection part formed at the inside circumference of the belt 1 is brought into contact with a ring disposed at the shaft end of a roller where the belt 1 is laid and pressing force is applied is corrected when it occurs. At least, one shaft end of the roller where the belt 1 or an intermediate transfer body is laid is provided with a roller holding member 2c which can adjust the movement of the position of the shaft end part. Or it is provided with a supporting member which can adjust the movement of the supporting position of a spring giving tension by a tension roller 4 to the belt 1 or plural grooves and plural holes. Thus, the photoreceptor belt driving device or the electrophotographic device whose reliability is high and whose service life is long can be provided.

7. 发明专利

JPH0863326A IMAGE PROCESSING DEVICE/METHOD 失效
公开(公告)号：JPH0863326A
公开(公告)日：1996-03-08
申请号：JP19663294
申请日：1994-08-22
申请人： HITACHI LTD
发明人： OHARA SHUNICHI , EJIRI MASAKAZU , NEMOTO YASUHIRO , SASAKI NAOKI , OTSUKA HIDEFUMI , MATSUMOTO SHOGO , SATOU RIYOUKO , YOSHIDA KAZUJI
IPC分类号： G06F3/14 , G06F3/00 , G06F3/01 , G06F3/033 , G06F3/048 , G06T11/80
摘要： PURPOSE: To quickly and easily process the images with use of an operation cursor by providing a processing function and a change control means which changes the shape of the cursor. CONSTITUTION: A computer 30 includes a three-dimensional action detection means 301, a meaning decision means 302, a voice recognition means 303, etc. The means 301 calculates the three-dimensional positions of the hands and fingers of an operator 100 based on the signals receied by the receivers 22a-22c, monitors in time series these positions of hands and fingers to decide the operating states of fingers, and sends the data on the finger operating states to the means 302. The means 303 analyzes the voice signal supplied from a microphone 43 and converts it into an instruction signal. This instruction signal assists the decision of the means 302 and the display/input of operations for selection or operations of the functions shown at a display part of introductory remarks. Then the instruction input operation is assisted by a voice input operation so that there is no requirement to input an instruction through a keyboard 41 or a mouse 42 during the operation of a cursor. As a result, the operation efficiency of the cursor is improved and also the cursor can be operated by both hands.

8. 发明专利

JPH0736616A THREE-DIMENSIONAL COORDINATE INPUT DEVICE 失效
公开(公告)号：JPH0736616A
公开(公告)日：1995-02-07
申请号：JP17884093
申请日：1993-07-20
申请人： HITACHI LTD
发明人： OHARA SHUNICHI , OTSUKA HIDEFUMI , SATO TATSUNARI
IPC分类号： G06F3/033 , G06F3/038 , G06F3/048
摘要： PURPOSE:To transmit the power set by the operation of a computer to an operator by driving an arm mechanism by a pulse motor and a decelerating mechanism and providing a coordinate indicating part with a sensor which detects axial forces in three axial directions. CONSTITUTION:The number of pulses driven by a certain operation is counted with respect to each motor to obtain the position of a present indicated point in the coordinate system set by the computer, and the interference with an object set by the computing is calculated, and the axial force generated at the indicated point is obtained. This calculated axial force and the axial force at the indicated point read by the axial force sensor which detects the axial forces in three axial directions are compared with each other; and if they are different from each other, the rotating direction of a pulse motor 11 is so determined that measured value of the axial force sensor approached the calculated axial force, and pulses are generated to rotate the pulse motor 11. A driving circuit 24 is operated by a driving pulse 20 outputted from an input/output control part 22, and each pulse motor 11 is turned, and the repulsive force acting on the indicated point is controlled.

9. 发明专利

JPH04333067A IMAGE RECORDER 失效
公开(公告)号：JPH04333067A
公开(公告)日：1992-11-20
申请号：JP10412891
申请日：1991-05-09
申请人： HITACHI LTD
发明人： OHARA SHUNICHI , OTSUKA HIDEFUMI , SATO GORO , OKUNA KENJI , SHIMIZU HIDEO
IPC分类号： B41J2/385 , G03G15/00 , G03G15/05
摘要： PURPOSE:To provide the image recorder where magnetic flux density on a tip of a recording electrode is increased and an image of high quality is obtained by forming a toner image by injecting charge directly from a recording electrode stylus utilizing an electromagnetic toner. CONSTITUTION:A magnetic body 22 is provided on an opposite side of the recording electrode in a magnetic flux generation means 11 feeding magnetic flux to a tip of the recording electrode 5 installed in the vicinity of the recording member 1. The magnetic body 22 is protruded from the magnetic flux generation means in the direction facing the recording member 1 from the tip of the recording electrode 5. The magnetic flux density of the tip of the recording electrode is increased since the magnetic flux of the magnetic flux generation means is deviated to the recording member side, and an image of high quality is obtained.

10. 发明专利

JPH03231865A PRINT HEAD FOR WIRE DOT PRINTER 失效
公开(公告)号：JPH03231865A
公开(公告)日：1991-10-15
申请号：JP2867990
申请日：1990-02-08
申请人： HITACHI LTD
发明人： ARIGA MASAKI , OHARA SHUNICHI
IPC分类号： B41J2/28
摘要： PURPOSE:To reduce the size and the weight and to enhance reliability in strength by a constitution wherein the fitting part of a holder on the side subjected to tensile force of a leaf spring, upon attraction of an armature to a permanent magnet, retracts farther to the holder side than the side subjected to compression force of the leaf spring. CONSTITUTION:End face 21A at side A of a holder 21 where the average stress of a leaf spring 19, produced upon attraction of an armature to a permanent magnet, is plus(tension) is retracted farther by an amount of Z to the holder 21 side than the end face 21B at side B where the average stress is minus (compression). Consequently, effective length at side A is longer than that at side B and the tensile stress decreases correspondingly. Since imbalance between tensile stress and compression stress is eliminated at side B, no margin of strength is required at side B and thereby the leaf spring 19 can be reduced in size and weight resulting in the reduction of the size and the weight of the print head. When there is no dimensional restriction, reliability in strength is enhanced.

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