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1. 发明专利

JPH1165271A IMAGE FORMING DEVICE 失效
公开(公告)号：JPH1165271A
公开(公告)日：1999-03-05
申请号：JP24045797
申请日：1997-08-21
申请人： RICOH KK
发明人： KODAMA YUTAKA , EBI YUTAKA
IPC分类号： G03G15/16 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To inhibit a phenomenon in which toner scatters toward a transfer material and to improve toner image quality after transfer by making conductive members, which are grounded or have the same polarity as that of a voltage applied to a transfer roller and to which a voltage lower in absolute value than the voltage applied to it, abut on the surface of the transfer roller. SOLUTION: Conductive rollers 16 and 17, made of metal, which serve as the conductive members abut on the surface of the transfer roller 5. In the use of the conductive rollers 16 and 17 as the conductive members, they are freely rotatably supported with a transfer unit case and rotated and driven by a driving device such that both move in the same direction and at the same speed in the areas where they are in contact with the transfer roller 5. That is, the conductive rollers 16 and 17 are rotated and driven in the directions shown by the arrows. In the case, the conductive members composed as the conductive rollers 16 and 17 are grounded, or the voltage whose polarity is the same as that of the voltage applied to the transfer roller 5 and absolute value is lower than that of the voltage applied to it is applied to each of them.

2. 发明专利

JPH0895344A CONDUCTIVE BRUSH AND ELECTRIFYING DEVICE USING THAT 失效
公开(公告)号：JPH0895344A
公开(公告)日：1996-04-12
申请号：JP23461894
申请日：1994-09-29
申请人： RICOH KK
发明人： KADONAGA MASAFUMI , TAKAHASHI TOMOKO , KATO TOMOMI , EBI YUTAKA
IPC分类号： G03G15/02 , A46B15/00
摘要： PURPOSE: To stabilize the discharge from a conductive fiber to a photosensitive body and to avoid such problems that the conductive part is exposed by wear or the like and a toner remaining and depositing on the top end of the brush causes irregular electrification, by covering the fiber with a protective layer comprising a high resistance material. CONSTITUTION: This conductive brush 1 consists of a base cloth 3, conductive fiber 5 and base body 7. The base cloth 3 is applied to the base body 7 and the conductive fiber 5 is implanted to the base cloth 3. This conductive fiber consists of a fiber 51 and a protective layer 52. Since it is necessary that charges can easily move, the fiber 51 is preferably made to have rather low resistance as Ωcm volume resistance (R1). On the other hand, it is preferable that the protective layer 52 has rather high resistance to stabilize discharge so that a material having high resistance as >=10 Ωcm volume resistance (R2) is used. The protective layer 52 is formed to 0.7-15μm thickness.

3. 发明专利

JPH048182A POWDER TRANSPORTER 失效
公开(公告)号：JPH048182A
公开(公告)日：1992-01-13
申请号：JP10921390
申请日：1990-04-25
申请人： RICOH KK
发明人： SUZUKI EIKO , EBI YUTAKA , FURUKAWA TATSUYA
IPC分类号： H02N11/00 , H02N1/00
摘要： PURPOSE:To facilitate smooth transportation on a transforming surface by applying positive and negative voltages alternately on a stripe electrode and causing electrostatic repulsion or attraction with respect to charged particles on an insulation layer charged with positive or negative polarity thereby moving the particles. CONSTITUTION:Aluminum electrodes 3 are formed, in stripe, on a base 2 and covered with an insulation layer 4 to provide a transportation surface 5 for mounting powder (toner) 1. A voltage applying means for causing electrostatic repulsion or attraction between the electrode 3 and the toner 1 on the insulation layer 4 charged with positive or negative polarity is also provided. When the polarity of driving pulses C1-C5 is switched appropriately according to the moving position of the charged toner 1, only the toner 1 charged with positive polarity can be transported to the right. Consequently, the toner 1 can be transported smoothly without causing damage on the properties or profile thereof.

4. 发明专利

JPH03268081A METHOD AND DEVICE FOR PROCESSING SIGNAL 失效
公开(公告)号：JPH03268081A
公开(公告)日：1991-11-28
申请号：JP6794390
申请日：1990-03-16
申请人： RICOH KK
发明人： EGUCHI HIROTOSHI , FURUTA TOSHIYUKI , EBI YUTAKA , FURUKAWA TATSUYA , WATANABE YOSHIO , TSUKAGOSHI TOSHIHIRO
IPC分类号： G06G7/60 , G06F15/18 , G06N3/04 , G06N99/00
摘要： PURPOSE:To attain a learning action with a simple operation by providing a memory storing the input signal data and a memory storing the teacher signal data and controlling these two memories. CONSTITUTION:A system 21 consists of a hierarchical neural circuit network 22, a total system control part 23, a memory storing the input signal data 24B, and a memory 25 storing the teacher signal data 25B. An arithmetic circuit 26 is added to input the output result 22R of the network 22 and the teacher signal data 25B and to compare these result 22R and the data 25B with each other. When an operator gives an instruction to the part 23 to learn the system 21, the network 22 starts its learning action based on a control signal 32A received from the part 23 and with use of both data 24B and 25B. Thus just a single learning operation is required to the operator in regard of a signal processing method together with the easy handling.

5. 发明专利

JPH03259269A ELECTROSTATIC RECORDER 失效
公开(公告)号：JPH03259269A
公开(公告)日：1991-11-19
申请号：JP5852790
申请日：1990-03-09
申请人： RICOH KK
发明人： EBI YUTAKA , YAMAGUCHI TAKEO
IPC分类号： B41J2/39 , G03G15/00 , G03G15/05
摘要： PURPOSE:To carry out digital recording at a low voltage by selectively inverting a polarization on a laminated body, forming a latent image on the surface of a ferroelectric substance, and electrostatically developing the latent image. CONSTITUTION:When a positive voltage is applied on an aluminum drum 1 covered with the ferroelectric substance 2 by using a conductive rubber roller 3, static electricity is generated. Therefore, the polarization is selectively inverted on the layer of the wholly polarized ferroelectric substance 2 by a multistylus 4, and the latent image is formed on the ferroelectric substance 2. After the latent image is formed, developing is carried out by supplying negative toner and positive toner to a developing roller 6. Further, the transfer is performed by a conductive transfer roller 7, and attracting is carried out by a polarity opposite to a toner one to perform the transfer. Thus, the recording is carried out at the low voltage.

6. 发明专利

JPH03196360A NEURAL NETWORK USING LIQUID CRYSTAL OPTICAL SHUTTER 失效
公开(公告)号：JPH03196360A
公开(公告)日：1991-08-27
申请号：JP33947789
申请日：1989-12-26
申请人： RICOH KK
发明人： WATANABE YOSHIO , MOTOMURA SHUJI , EBI YUTAKA
IPC分类号： G06F15/18 , G06N3/04 , G06N99/00
摘要： PURPOSE:To enable other units to receive input signals by converting an electric input into a light signal, and converting it into an electric signal and sending it to other units. CONSTITUTION:The neural network consists of plural 'units' 1 and 2, each of which has a liquid crystal optical shutter 20 varying in light transmissivity with an impressed voltage and a photoconductive element 21 varying in resistance value according to whether light passed through the liquid crystal optical shutter is intense or not. Then a photoconductive element 21 of one unit and liquid crystal optical shutters 20 and power sources 25 of other units are connected electrically. Consequently, when fine cells 22 - 24 of some (i) liquid crystal optical shutters 20 enter light transmissive states, fine cells 22 - 24 of a unit 2 which receives its output are placed in light transmissive states and other units receive input signals.

7. 发明专利

JPH034389B2 失效
公开(公告)号：JPH034389B2
公开(公告)日：1991-01-22
申请号：JP11513979
申请日：1979-09-10
申请人： RICOH KK
发明人： EBI YUTAKA , KUBO KIKUO
IPC分类号： B41J2/06 , B41J2/065

8. 发明专利

JPS6453475A PHOTOELECTRIC CONVERSION APPARATUS 失效
公开(公告)号：JPS6453475A
公开(公告)日：1989-03-01
申请号：JP20933187
申请日：1987-08-25
申请人： RICOH KK
发明人： INOUE TOSHIHARU , EBI YUTAKA
IPC分类号： H01L31/04 , H01L39/22
摘要： PURPOSE:To provide a photoelectric conversion apparatus capable of high speed driving, by forming a photoelectric conversion part, a switching circuit part and peripheral wiring part of a superconductive material. CONSTITUTION:A pit (window 7) is formed in an Si substrate surface and a film 1 of superconductor YBaCuO is formed on the other surface by heat treatment after sputtered. Thereafter, this is made band-shaped by using a laser beam. In addition, a window 5 is formed on a side opposite to the window 7 by removing a superconductor 1. For a window 6, a superconductive layer 1 is left as a thin film. Next, ion implantation is performed with boron through the window 5 to form a P channel in the Si substrate. Thereafter, SiO2 is deposited as a protective layer by a CVD method and an A1 electrode is deposited on the window 7 to take out a wiring. When the photoelectric conversion element is cooled at a temperature of 77K, zero resistance and the Josephson effect peculiar to the superconductor are revealed.

9. 发明专利

JPS6451321A SHIELDING MATERIAL FOR ELECTROMAGNETIC WAVE 失效
公开(公告)号：JPS6451321A
公开(公告)日：1989-02-27
申请号：JP20418687
申请日：1987-08-19
申请人： RICOH KK
发明人： INOUE TOSHIHARU , KATANO YASUO , EBI YUTAKA
IPC分类号： C01G3/00 , C01G1/00 , C04B35/00 , C04B35/45 , H01B12/00 , H01L39/00 , H05K9/00
摘要： PURPOSE:To provide a shielding material for electromagnetic wave having high shielding effect for electromagnetic wave, superior workability and satisfactory formability by prepg. the shielding material from an electroconductive oxide expressed by the specified formula consisting of Sc, a IIa group element, Cu, a VIa group element, and B, etc. CONSTITUTION:A shielding material for electromagnetic wave is prepd. from an electroconductive oxide expressed by the molecular formula: RrXxZzDdeltaAepsilon (wherein R is at least one element among Sc, Y, La, lanthanides; X is a IIa group element, pref. Ba, Sr, Ca; A is at least one kind of element selected from B, C, N, and F; r is about 1.0; x is bout 2.0; z is about 3.0; 0.9>delta>0.2; 0.5>epsilon>0.001). By this constitution, a shielding material for electromagnetic wave having improved shielding effect for electromagnetic wave, superior workability, and formability, and being useful for shielding a cover of electronic parts, is provided.

10. 发明专利

JPS61233549A INK SUPPLY APPARATUS OF INK JET PRINTER 失效
公开(公告)号：JPS61233549A
公开(公告)日：1986-10-17
申请号：JP7603385
申请日：1985-04-10
申请人： RICOH KK
发明人： KOMAI HIROMICHI , EBI YUTAKA , SEKIYA TAKURO
IPC分类号： B41J2/175 , B41J2/19
摘要： PURPOSE:To remove air bubbles in an ink jet head with good efficiency and to enable the efficient control of temp., by guiding the ink in an ink tank to an ink liquid chamber from an ink inflow part through a change-over valve by an ink recovery pump at the time of the removal of air bubbles and further guiding the same from an ink outflow part to an ink sump. CONSTITUTION:In removing air bubbles (in the closed state of a valve V1), an ink recovery pump 14 guides the ink in the tank 1 to an ink sump 13 through a valve V4, a heater 5, a multinozzle head 6, an inflow port 7, an outflow port 15 and a valve V2. Because the ink recovery pump 14 usually has a flow amount several ten times or more as compared with an ink supply pump, air bubbles in an ink liquid chamber are easily removed at this time by the ink stream and the ink liquid chamber itself is rapidly heated by the ink heated by the heater.

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