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61. 发明专利

JP2004013018A PICTURE READER 审中-公开
公开(公告)号：JP2004013018A
公开(公告)日：2004-01-15
申请号：JP2002169156
申请日：2002-06-10
申请人： RICOH KK
发明人： KATSUKI MASANORI , FUKUDA MINORU , SHIGEMOTO MASAHIRO , HAYASHI SATOSHI
IPC分类号： G03B27/50 , H04N1/04
摘要： PROBLEM TO BE SOLVED: To provide a miniaturized picture reader by preventing an exposure lamp from high generating a large amount of heat by software run away and by stably supplying a constant light quantity from the exposure lamp. SOLUTION: Lighting control for lighting the lamp in advance movement and lighting out the lamp in retreat movement is executed by using the reciprocal signal of a reciprocal motor reciprocally moving a travelling body. Where, the exposure lamp is lit when the travelling body is in the forward advance movement. After a lighting state is stabilized, control for exposure and travelling body speed is executed so that the travelling body may have constant speed. When the travelling body is in the forward advance movement, the travelling body is reciprocally driven at least once or more prior to reading. Lighting control is applied to the exposure lamp so that the exposure lamp may reach the constant light quantity during this period of time. COPYRIGHT: (C)2004,JPO

62. 发明专利

JPH1155457A IMAGE READER 失效
公开(公告)号：JPH1155457A
公开(公告)日：1999-02-26
申请号：JP21696997
申请日：1997-07-29
申请人： RICOH KK
发明人： FUKUDA MINORU
IPC分类号： G03B27/50 , H04N1/00 , H04N1/028
摘要： PROBLEM TO BE SOLVED: To provide an image reader in which vibration of orthogonal mirrors is suppressed while precluding the possibility of making mirrors deformed. SOLUTION: A 2nd mirror 6 and a 3rd mirror 7 in the image reader are placed closely with reflecting faces orthogonal to each other. Then faces 6a, 7a closed to each other of the two mirrors 6, 7 are chamfered in parallel and an adhesive 11 is packed between them. The two mirrors 6, 7 are coupled and integrated to be an L-shape. Thus, the strength is increased and the mirror assembly withstands vibration.

63. 发明专利

JPH1117907A IMAGE READING UNIT 失效
公开(公告)号：JPH1117907A
公开(公告)日：1999-01-22
申请号：JP18050997
申请日：1997-06-20
申请人： RICOH KK
发明人： FUKUDA MINORU
IPC分类号： G03G15/04 , H01L27/14 , H04N1/028 , H04N1/19
摘要： PROBLEM TO BE SOLVED: To prevent adverse influences of external vibrations on a casing or holding a lens and an imaging device by fine adjustment, without changing an imaging device holding eccentric power, of a light shielding means for preventing flare light invasion into an imaging device and an imaging device angle to the opposed optical axis. SOLUTION: Fine adjustment, in the directions of arrows Xc and Xf (Xb), of an angle with the axis of an attachment plate 8 fixing a read sensor 17 vertical to an optical axis OP as a center and an angle to the vertical axis is performed by adjustment jigs C and F (B). At such a time, both ends of a spring 11 wound around a pulley 15 are fixed at the supporting points of the attachment board 8 on the adjustment jigs F and C. In a process for angle adjustment, the same eccentric force is always applied to the supporting points of the attachment board 8 on the adjustment jigs F and C, the supporting state of the attachment board 8 is not made unstable by the angle adjustment, and such a sate is not made weak to external vibrations by the angle adjustment. Then, a light shield panel provided on the wall body of a casing 1 prevents the invasion of flare light into the read sensor 17.

64. 发明专利

JPH08314342A IMAGE FORMING DEVICE 失效
公开(公告)号：JPH08314342A
公开(公告)日：1996-11-29
申请号：JP13868395
申请日：1995-05-12
申请人： RICOH KK
发明人： FUKUDA MINORU
IPC分类号： G03G21/10
摘要： PURPOSE: To provide an image forming device whose durability is high, whose cleaning ability, etc., is stabilized and capable of forming an image of high quality without generating defective cleaning by reducing the plastic deformation due to a temperature change and aging, of a cleaning blade for removing toner remaining on a photoreceptor drum and made of elastic rubber and increasing the fitness of the cleaning blade on the surface of the photoreceptor drum. CONSTITUTION: The device is provided with the cleaning blade 4 which is obtained by forming the elastic rubber sheet 2 abutting on the surface 1a of the photoreceptor drum 1 and an elastic metal plate 3 placed opposite to the elastic rubber sheet 2 in one body, a holding means 5 for rotatably holding the cleaning blade 4 and a pressure means 7 for imparting a pressing force so that the cleaning blade 4 may press the surface 1a of the photoreceptor drum 1 in order to remove the toner 6 remaining on the surface 1a of the drum 1.

65. 发明专利

JPH0669466A SEMICONDUCTOR MEMORY DEVICE 失效
公开(公告)号：JPH0669466A
公开(公告)日：1994-03-11
申请号：JP24563992
申请日：1992-08-21
申请人： RICOH KK
发明人： FUKUDA MINORU
IPC分类号： H01L21/8247 , H01L27/115 , H01L29/788 , H01L29/792
摘要： PURPOSE:To realize a high speed operation by reducing the resistance of a word line and to improve writing characteristics by reducing the resistance of a source line. CONSTITUTION:In order to connect source regions 4a along a direction parallel with a word line 12, a source connection metal wiring line 16 composed of a first metal wiring layer is formed. A drain connection metal wiring line 14 is composed of a second metal wiring layer and connects the drain regions 6 of a plurality of memory cells which are arranged along a direction perpendicular to the word line 12. A word line metal wiring line 24 composed of a third metal wiring layer is formed on an interlayer insulating film 22 in parallel with the word line 12.

66. 发明专利

JPH04167613A DELAY ADJUSTING CIRCUIT DEVICE 失效
公开(公告)号：JPH04167613A
公开(公告)日：1992-06-15
申请号：JP28944490
申请日：1990-10-26
申请人： RICOH KK
发明人： FUKUDA MINORU
IPC分类号： H03K5/13
摘要： PURPOSE:To set delay quantity while confirming delay characteristic by using a switching transistor which allows an electrical turn on/off to perform connection/disconnection between an internal signal node and a capacitor. CONSTITUTION:In a delay control circuit device which generates delay by delivering a prescribed signal when the internal signal node 1 to which the capacitor 2 is connected arrives at prescribed potential, the switching transistor 7 is provided between the internal signal node 1 and the capacitor 2. The switching transistor 7 performs an on/off operation by a signal level supplied to the gate of the transistor, and the connection/disconnection between the capacitor 2 connected to the internal signal node 1 and the internal signal node 1 via the switching transistor 7 can be easily performed. In such a way, it is possible to set the delay quantity as confirming the delay characteristic of the delay adjusting circuit device.

67. 发明专利

JPH03250494A SEMICONDUCTOR MEMORY DEVICE 失效
公开(公告)号：JPH03250494A
公开(公告)日：1991-11-08
申请号：JP4699990
申请日：1990-02-27
申请人： RICOH KK
发明人： FUKUDA MINORU , KAMEI YOJIRO , NAKANO AKIHISA
IPC分类号： G11C17/00 , G11C5/14 , G11C8/08 , G11C16/06 , G11C16/30
摘要： PURPOSE:To prevent the generation of malfunction in a storage element and to minimize a storage circuit part by connecting a clamping circuit for controlling the reading voltages of plural word lines to the word lines in common. CONSTITUTION:The clamping circuit 18 is formed by transistors(TRs) 10, 16 and a diode 17. In order to read out information stored in an FAMOS 1, the voltage Vcc of a power supply 15 is boosted, and when the voltage arrives at about 6V, an FET 16 is turned on, current flows from the power supply 15 through the FETs 10, 16 and the diode 17 and the voltage Vcc does not exceed 6V by the constant voltage action of the diode 17. Thereby, the FAMOS 1 set up to a high threshold voltage also is not turned on due to the voltage Vcc exceeding 6V and no leakage current flows from the FAMOS 1.

68. 发明专利

JPH0125049B2 失效
公开(公告)号：JPH0125049B2
公开(公告)日：1989-05-16
申请号：JP20120781
申请日：1981-12-14
申请人： RICOH KK
发明人： YAMADA HIROSHI , HOSHI HITOSHI , NOGUCHI YUKIO , FUKUDA MINORU
IPC分类号： G03B27/34 , G03B27/32 , G03B27/50 , G03G15/04 , G03G15/041

69. 发明专利

JPS63240579A TONER RECOVERING DEVICE 失效
公开(公告)号：JPS63240579A
公开(公告)日：1988-10-06
申请号：JP7377487
申请日：1987-03-27
申请人： RICOH KK
发明人： FUKUDA MINORU
IPC分类号： G03G21/10 , G03G21/00
摘要： PURPOSE:To deposit a toner in a toner recovering container until it becomes a full state, by providing a toner discharge pipe on the upper frame unit having an openable and closeable lower frame unit, and supporting a fitting part of the toner recovering container by using an axial part of the discharge pipe as a turning fulcrum. CONSTITUTION:A toner discharge pipe 21 is provided on the outside of the upper frame unit 19 from a side plate 19a of the upper frame unit being turnable, and in its inside, the end part of a spiral member 18 is positioned, and by the outside peripheral part, a fitting part 20a of a toner recovering container 20 is supported so as to be freely turnable. The toner recovering container 20 has a fitting part consisting of a tubular part 20a which can turn around the toner discharge pipe 21 and an end face part 20b which comes into contact with an end face part 21b of the toner discharge pipe 21 and fitted to a stepped screw 23, and supported so as to be freely turnable by the toner discharge pipe 21. In such a way, a toner which has collected in the lower part of the toner discharge pipe 21, in the toner recovering container can be moved into the toner collecting container 20 in the right direction separated from a position right under the toner discharge pipe 21, and the toner can be contained uniformly.

70. 发明专利

JPS6391679A CORRECTING DEVICE FOR UNEVENNESS OF EXPOSURE QUANTITY OF COPYING MACHINE WITH VARIABLE POWER OPTICAL SYSTEM 失效
公开(公告)号：JPS6391679A
公开(公告)日：1988-04-22
申请号：JP23616586
申请日：1986-10-06
申请人： RICOH KK
发明人： FUKUDA MINORU
IPC分类号： G03B27/34 , G03G15/04 , G03G15/043
摘要： PURPOSE:To obtain an excellent printout without unevenness at the time of unmagnified, reduced and enlarged copyings by arranging liquid crystal so that at least either one of optical paths for image exposure and erasure is interrupted, forming the liquid crystal and controlling the liquid crystal blocks independently. CONSTITUTION:The liquid crystal 17 of the erasure device 6 made up of plural divided liquid crystal blocks, and it is arranged near a photosensitive drum 4. The liquid crystal blocks are formed so as to be controlled independently. The liquid crystal blocks corresponding to parts other than an area with transfer sheet width are controlled transmissive at the time of transfer, transmits the light of a lamp 15 and exposes the surface of the photosensitive drum 4. Each block in the liquid crystal 17 is controlled in an image forming area according to the quantity of correcting the exposure quantity. The former is set according to a transfer magnification. The divided liquid crystal blocks are transfer magnification. The divided liquid crystal blocks are transmitted stepwise, and an electrification potential in a part with a small amount of exposure in an optical system is made lower. Thus the unevenness of the exposure quantity is corrected, and the unevenness of a copy density is eliminated.

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