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51. 发明专利

JPH05238575A 失效
公开(公告)号：JPH05238575A
公开(公告)日：1993-09-17
申请号：JP3786792
申请日：1992-02-25
申请人： RICOH KK
发明人： TAKEHIRA OSAMU , HORIGUCHI HIROYUKI , TAKAHASHI JUNICHI , KOZUKA NAOKI , OZAKI MOTOMI , OKANO SATORU
IPC分类号： B41J13/00 , B65H3/52 , B65H7/02 , G03G15/00
摘要： PURPOSE:To attain a feed of paper stable without a double feed and nonfeed by detecting a fluctuation of a pad pressure by a force sensor to adjust the pad pressure to a proper value. CONSTITUTION:Force sensors 14, 15 are arranged between a friction pad 1 and a supporting part 2a of a pad device 2. A strain generator 14 is arranged between a frame 13 and the supporting part 2a of the pad device 2, and the frame 13 is brought into contact in only a fixed part of this strain generator 14. A detecting part 15 like a strain gage is provided in a part of concentrating a strain generated in a surface according to deformation of the strain generator 14, in the case of applying a pad pressure to the strain generator 14, to constitute the force sensor. A moving part 4 of an elastic unit moving device is moved so that the pad pressure displayed by this force sensor obtains a predetermined value, and by adjusting elastic force of a spring 3, the pad pressure is always adjusted to an optimum condition.

52. 发明专利

JPH05238056A 失效
公开(公告)号：JPH05238056A
公开(公告)日：1993-09-17
申请号：JP3925692
申请日：1992-02-26
申请人： RICOH KK
发明人： HORIGUCHI HIROYUKI , OZAKI MOTOMI , TAKAHASHI JUNICHI
IPC分类号： B41J2/44 , G03G15/04 , H01J31/15
摘要： PURPOSE:To make a device small in size and the cost low by providing a photo detector wherein light issued from a light source fixed on an end of a micro discharge tube array monitors light reflected on a record medium, and an actuator for controlling the distance between the micro discharge tube array and the record medium in accordance with the output of the detector. CONSTITUTION:An optical writing device is constituted of a micro discharge tube 6 arranged opposite to a record medium 5, a height control circuit 7, and an actuator 8. A semiconductor laser 13 as a light source is attached on one bevel of an angle-shaped section in a direction intersecting rectangularly the longitudinal direction of the micro discharge tube 6. On the other bevel, a photo detector 14, wherein light issued from the semiconductor laser 13 monitors light reflected on the face of the record medium 5, is attached. When the distance between the record medium 5 and the semiconductor laser 13 changes, the position of the light received at the photo detector 14 changes. Therefore, by monitoring the change of the output of the photo detector 14, change of the distance between the record medium 5 and the micro discharge tube array can be monitored and the distance is controlled by the actuator 8 in accordance with the output of the photo detector 14.

53. 发明专利

JPH05231813A STYLUS FOR MEASURING SHAPE 失效
公开(公告)号：JPH05231813A
公开(公告)日：1993-09-07
申请号：JP3361992
申请日：1992-02-20
申请人： RICOH KK
发明人： OZAKI MOTOMI , TAKAHASHI JUNICHI , HORIGUCHI HIROYUKI
IPC分类号： G01B7/34 , B81B3/00 , G01B7/00 , G01Q60/16 , G01Q60/32 , G01Q60/38
摘要： PURPOSE:To obtain such a stylus for measuring shapes that all of its connecting sections are solid and the same shape of styluses can be manufactured at high reproducibility by integrally forming its pedestal and cantilever. CONSTITUTION:A pedestal 1, a cantilever 2 which is positioned to one pedestal 1 and provided with a conductive section 4 on its surface, and a tip 3 positioned to the front end section of the cantilever 2 are integrally formed of the same material. An electrode member 6 composed of a conductive thin film is provided on the cantilever 2 with an insulator 5 in between and a cantilever vibration control means which vibrates the cantilever 2 by applying a voltage across the member 6 and section 4 is provided on the cantilever 2.

54. 发明专利

JPH05207760A ELECTROSTATIC FORCE ACTUATOR 失效
公开(公告)号：JPH05207760A
公开(公告)日：1993-08-13
申请号：JP1174892
申请日：1992-01-27
申请人： RICOH KK
发明人： TAKAHASHI JUNICHI , HORIGUCHI HIROYUKI , OZAKI MOTOMI
IPC分类号： H02N1/00
摘要： PURPOSE:To increase moving speed by disposing a stator having a plurality of electrodes on the insulating board of an electrostatic actuator employing an ultra-thin film, mounting a ferroelectric mover on the stator, and then moving the mover through polarization of ferroelectric material. CONSTITUTION:An actuator comprises a stator 7 and a mover 8 wherein the stator 7 comprises an insulating board having a surface buried, at a predetermined interval, with stripe electrodes 9 interconnected through electrode wires. A mover 8 made of ferroelectric material is mounted on the stripe electrodes 9. Consequently, the mover 8 is moved with repelling force or attracting force functioning between charges produced through polarization of the ferroelectric material of the mover 8 and charges produced at the electrode 9 of the stator 7. Since charging time for the mover 8 and supplementary charging time in the way of operation are not required and the mover 8 is simply required to be applied with an electric field higher than the coersive electric field or the ferroelectric material, operating speed can be increased.

55. 发明专利

JPH05182261A INFORMATION STORAGE DEVICE 失效
公开(公告)号：JPH05182261A
公开(公告)日：1993-07-23
申请号：JP34604091
申请日：1991-12-27
申请人： RICOH KK
发明人： TAKAHASHI JUNICHI , HORIGUCHI HIROYUKI , OZAKI MOTOMI
IPC分类号： G11B9/02 , G11B9/00 , G11B9/14
摘要： PURPOSE:To detect the pyroelectric current flowing between a conductive substrate and a conductive film by heating a ferroelectric film with the Joule heat generated by the current flowing in a resistance layer from a conductive probe. CONSTITUTION:The conductive substrate 15 and conductive film 17 of the recording medium are previously impressed with the voltage at which an electric field above the anti-electric field of the ferroelectric film 16 is generated, by which the recording medium is put into a unidirecitonally polarized state. A voltage V1 is impressed between the conductive probe 23 and the conductive film 17 and a current I1 is passed through a resistance layer 18 into the film 17 by an electric discharge or tunneling from the tip of the probe 23. The Joule heat is generated in the part of the resistance layer 18 where the current I1 flows. The film 16 existing just thereunder is heated and the temp. is raised. The voltage generating the electric field which has the polarities meeting the information desired to be written and does not exceed the anti-electric field at room temp. is held impressed between the substrate 15 and the film 17 at this time and, therefore, all the polarization directions are the same. The parts where the temp. rises are reversed in the polarization directions and the pyroelectric current flowing between the substrate 15 and the film 17 is detected.

56. 发明专利

JPH0555655A VIBRATION TYPE ACTUATOR 失效
公开(公告)号：JPH0555655A
公开(公告)日：1993-03-05
申请号：JP21538991
申请日：1991-08-27
申请人： RICOH KK
发明人： TAKAHASHI JUNICHI , AKIYAMA ZENICHI , HORIGUCHI HIROYUKI , OZAKI MOTOMI
IPC分类号： B65H5/00 , H01L41/09
摘要： PURPOSE:To obtain a vibration type actuator wherein, an actuator part is miniaturized, a driving circuit for the actuator is simplified, the efficiency is high, and the moving velocity is large. CONSTITUTION:Protruding parts 8 are provided being arranged on a flat plate 6 at constant intervals, piezoelectric part members 9 are buried in notched parts 7 formed between the protruding parts 8, electrodes 10 for applying electric field are formed on the vertical surfaces of the protruding parts 8 sandwiching the piezoelectric part members 9, a slaking vibration generating means for shaking the whole surface of the flat plate 6 is installed, and a piezoelectric part member electric field applying control means for applying electric field wherein phase difference is generated to each piezoelectric part member 9 is installed.

57. 发明专利

JPH04368479A ELECTROSTATIC ACTUATOR 失效
公开(公告)号：JPH04368479A
公开(公告)日：1992-12-21
申请号：JP14475891
申请日：1991-06-17
申请人： RICOH KK
发明人： SUZUKI EIKO , HORIGUCHI HIROYUKI , TAKAHASHI JUNICHI , OZAKI MOTOMI , WATANABE YOSHIO , OKANDA JUNKO
IPC分类号： B65H5/00 , H02N1/00
摘要： PURPOSE:To provide an electrostatic actuator which can displace a movable unit even in a direction perpendicular to its plane by utilizing an electrostatic force and an elastic force of a beam. CONSTITUTION:A beam 8 is secured at one end to a board 7, a movable electrode 9 having pectinated teeth 9a, 9b is supported to the other end side of the beam 8, and at least two stationary electrodes 10, 11a, 11b are arranged on the lower surface side of the electrode 9 in the extended direction of the teeth 9a, 9b. Movable electrode control means for controlling to so move the electrode 9 as to be excited by electrostatic forces of the electrodes 10, 11a, 11b and an elastic force of the beam 8, is provided.

58. 发明专利

JPH04329244A MICRO VACUUM TRIODE ELEMENT 失效
公开(公告)号：JPH04329244A
公开(公告)日：1992-11-18
申请号：JP10023991
申请日：1991-05-02
申请人： RICOH KK
发明人： TAKAHASHI JUNICHI , HORIGUCHI HIROYUKI , OZAKI MOTOMI
IPC分类号： H01J21/10 , H01J21/06 , H01L29/80
摘要： PURPOSE:To provide a micro vacuum triode element which has a short gate charging time and is able to high speed operation just like a vacuum device originally is. CONSTITUTION:Electrons emitted to vacuum from the tip part 7a of an emitter 7 formed on a substrate by an IC process technique are controlled by gate voltage of a gate 8 and the controlled electron flow is detected by an anode to control the current. The emitter 1 is so formed as to part the tip part 7a from the bottom plane of the substrate and float it in vacuum and an emitter heating means 7b to heat the tip part 7a of the emitter 7 is installed.

59. 发明专利

JPH04325883A PLANAR ACTUATOR 失效
公开(公告)号：JPH04325883A
公开(公告)日：1992-11-16
申请号：JP9395791
申请日：1991-04-24
申请人： RICOH KK
发明人： HORIGUCHI HIROYUKI , TAKAHASHI JUNICHI , OZAKI MOTOMI
IPC分类号： H02N1/00
摘要： PURPOSE:To provide an extremely minute planar actuator which is realizable with a relatively simple process where LSI technology is applied. CONSTITUTION:An oscillation member 5, where an oscillator 8 is made at the center of a high resistant substrate both ends or one end of which is supported by beams 7, is provided, and fixed member 6, where a plurality of fixed electrodes 9 are made, is provided through a dielectric layer below the oscillator 8, thus a flexural oscillation generating means is constituted, which causes displacement of resonance mode in the oscillator 8 by generating electrostatic force between the fixed electrode 9 and the oscillator 8.

60. 发明专利

JPH04109884A ELECTROSTATIC MOTOR 失效
公开(公告)号：JPH04109884A
公开(公告)日：1992-04-10
申请号：JP22464990
申请日：1990-08-27
申请人： RICOH KK
发明人： TAKAHASHI JUNICHI , HORIGUCHI HIROYUKI , OZAKI MOTOMI
IPC分类号： H02N11/00 , H02N1/00
摘要： PURPOSE:To simplify an operation circuit by a method wherein corrugation is provided on the leg part of a moving unit which is touching a board on which the moving unit is placed in such a manner that a friction coefficient between the moving unit and the board is small to a direction to which the moving unit is to be moved and large to a direction opposite to it. CONSTITUTION:As the electrode parts 12 of a moving unit 10 are pulled toward stator electrode 16 when a voltage is applied between the stator electrode 16, the moving unit 10 expands vertically and contracts horizontally. At that time, the right side leg part 13 is pulled to a direction (b) and the left side leg part 13 is pulled to a direction (a). As a friction coefficient to the direction (b) is large, the right side leg part 13 does not move. As the friction coefficient to the direction (a) is small, the left side leg part 13 moves to the direction (a). On the other hand, when voltage application is discontinued, the moving unit 10 expands horizontally and is restored to an initial state but, because of the direction dependency of the friction coefficient, the right side leg part 13 moves to the direction (a) but the left side leg part 13 can not move to the direction (b).

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