baber/WOPTO huggingface dataset:
Patent JP-2000291660-A (JP)
Title: Fluid bearing spindle motor
Inventor: SAKATANI IKUNORI
IPC: F16C17/10
Filed: 1999-04-07
Abstract: PROBLEM TO BE SOLVED: To provide a fluid bearing spindle motor of high reliability capable of preventing a thrust fluid bearing from being damaged in the rotating of the fluid bearing spindle motor in a state that the sufficient amount of the lubricating fluid is not supplied to the thrust bearing. SOLUTION: In a fluid bearing spindle motor comprising a shaft 1, a sleeve having a shaft hole 3 capable of inserting the shaft 1, a recessed part 4 formed on one end of the sleeve 2 continuously from the shaft hole 3 and having a diameter larger than that of the shaft hole 3, a thrust plate 5 mounted in the recessed part 4 and capable of fitting the shaft 1, and a cover plate 6 fitted to an opening of the recessed part 4 in opposition to the thrust plate 5, further comprising the thrust fluid bearings 20 between the thrust plate 5 and the cover plate 6, and between the thrust plate 5 and a bottoms surface 2b of the recessed part 4, and comprising a radial fluid bearing 30 between an outer peripheral surface 1a of the shaft 1 and an inner peripheral surface 2a of the shaft hole 3, the cover plate 6 is made of a transparent material.
Patent JP-S62257488-A (JP)
Inventor: MIYAZAWA HIDEAKI
IPC: D07B5/00
Filed: 1986-04-30
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H02278907-A (JP)
Title: Semiconductor amplifier circuit
Inventor: MORIGAMI SEIICHI
IPC: H03F3/45
Filed: 1989-04-19
Abstract: PURPOSE:To quicken the operation of an output signal by employing a bipolar transistor(TR) as a load TR of an amplifier circuit so as to reduce the parasitic capacitance relating to an output signal. CONSTITUTION:The emitter area of NPN bipolar TRs 16, 17 for load is equal to each other, a base of the TR 16 connects to a gate and a source of a PMOS TR 11 and a gate of a PMOS TR 12 in common and a base of the TR 17 connects to a drain of the PMOS TR 12 in common. Thus, a parasitic capacitance caused at a node of an output signal OUT in the case of employing a bipolar TR is smaller than that in the case of employing a PMOS TR having been used in a conventional circuit and then the time required for increase or decrease in the level of the output signal OUT is decreased.
Patent JP-2000288939-A (JP)
Title: Electrodeposition grinder and its manufacture
Inventor: SHITAMAE NAOKI
IPC: B24B53/017
Filed: 1999-04-07
Abstract: PROBLEM TO BE SOLVED: To reduce the weight of base metal, and to prevent melting-out caused by strong alkaline and strong acidic slurry. SOLUTION: A base metal is made of a synthetic resin having ferromagnetic or paramagnetic magnetic powder (m) and a glass fiber dispersed inside. Its surface is covered with a conductive first metal covering layer 25. On the end surface 25a of the first metal covering layer 25 of the projection 14b of the base metal 22, an abrasive grain layer 23 is formed by a metal plated phase 15 having superabrasive grains 14 dispersed. Further, the surfaces of the first metal covering layer 25 and the abrasive grain layer 23 are covered with a second metal covering layer 26 having corrosion resistance.
Patent JP-H02278260-A (JP)
Title: Image forming device
Inventor: SAKAI ATSUSHI
IPC: B41J2/475
Filed: 1989-04-20
Abstract: PURPOSE:To normally allow the utilization of cured microcapsules and to prevent the unnecessary breakage of the microcapsules by applying the microcapsules internally contg. a material which has the thermal softening property to soften by heating and the photosensitivity to change in properties by sensing light and chromogens on recording paper. CONSTITUTION:The microcapsules 76 internally contg. the material which has the thermal softening property to soften by heating and the photosensitivity to change in properties by sensing light and the chromogens are applied on the recording paper 90. The microcapsules 76 are in a hard state at ordinary temp. and are, therefore, stably applied on the recording paper without being broken at the time of the application or during preservation and are exposed by an exposing means. The microcapsules are thereafter pressurized while the microcapsules are kept heated by a heating means, by which the softened microcapsules exclusive of the microcapsules sensing the light are broken and images are formed by the effect of the chromogens. Since the microcapsules have the constitution to be hard at ordinary temp. in this case, the unnecessary breakage of the microcapsules is obviated.
Patent JP-H08271738-A (JP)
Title: Optical fixed attenuator
Inventor: ABE TOSHIHIRO
IPC: G02B6/00
Filed: 1995-03-31
Abstract: PURPOSE: To provide a highly versatile fixed optical attenuator capable of acquiring stable characteristics by the use of a simple small--sized. CONSTITUTION: The input-side connector having an input-side optical fiber is connected with the output-side connector having an output-side fiber through an adaptor 1. The longitudinal axis line of the sleeve 2 which accepts the tips of the optical fibers of the two connectors in the adaptor 1 is formed staggerly on the input- and output-sides. By this, the core axis of the input-side optical fiber fA is displaced from that of the output-side optical fiber fB to form a fixed optical attenuator.
Patent JP-S5527944-A (JP)
Title: Ultrasonic wave transducer
Inventor: TODA KOUJI
IPC: G01S7/521
Filed: 1978-08-21
Abstract: PURPOSE: To provide the subject transducer wherein an AC voltage is applied to a screen-like electrode on a thin piezoelectric substrate thereby to inject an ultrasonic wave beam of a focusing property into a liquid contiguous to a substrate and to simplify the electrode structure.  
     CONSTITUTION: The thickness of a piezoelectric substrate 1 is made substantially equal to or less than the wavelength λ of a sound wave, and a screen-like electrode 2 is arranged on the surface thereof and a flat electrode 3 is provided on the rear surface thereof, said electrode 3 being in contact with a liquid-like member 4. When a three-phase AC voltage is applied to respective electrode terminals a through c, radiation of vertical sonic wave is generated, and sound wave can be injected efficiently in the liquid. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H05298629-A (JP)
Title: Device for testing magnetic head
Inventor: SEGI SHINICHI
IPC: G11B5/455
Filed: 1992-04-21
Abstract: PURPOSE:To test a nonparallel type MIG head by providing a means generating a test signal whose frequency increases/decreases according to a time lapse, the means mixing a high frequency bias signal with the signal and the means measuring the amplitude of a frequency component. CONSTITUTION:The device for testing a magnetic head is provided with a high frequency bias generator 61 and a mixer 62. Since the nonparallel type MIG head is constituted so that a boundary 34 between a ferrite 31 and a metal material 32 is nonparallel to a gap 33, no contour ripple occurs in a high frequency area by the azimuth loss of the boundary 34 and the contour ripple occurs in only a low frequency area. By a test signal generator 6, a test signal sweeping e.g. 0.2 to 1.2 MHz frequency is generated and mixed 62 with a bias generated by the high frequency bias generator 61 and amplified 5 and recorded on magnetic tape 2 by a magnetic head 3 to be tested. When the frequency of the high frequency bias is made 5 MHz extent, the inclination of the frequency characteristic of the low frequency area of a regenerative signal is reduced.
Patent JP-S582142-A (JP)
Title: Paper feeding euipment
Inventor: TAMURA TAKASHI
IPC: B65H1/12
Filed: 1981-06-29
Abstract: PURPOSE:To enable feeding paper forthwith after giving the initiating command in such a way that restraint of a letting out member is released by means of a deterrent member which releases the deterred flipping member through paper feeding initiating command signals, and of the follow-up of the deterrent member. CONSTITUTION:When paper feeding initiating command signals are given from the body (unshoen in the figure) of a duplicator, an electromagnetic clutch 33 is excited, at the same time as a belt drive shaft 19 is turned, a deterrent member 36 is turned, a follow-up level 16 is flipped up, and a flipping member 9 flips up a bottom plate 5 of a paper feeding cassette 4. And when recording paper X in the paper feeding cassette 4 is brought into forcible contact with a paper feeding roller 24, a boss 41a hits a stopper 42 to open a spring clutch 37, the deterrent member 36 is held at the same position, and a latch 43a of a latch member 43 which is disengaged from teeth 48. Thus, turning movement of a first output toothed wheel 32 which is constantly turned is transferred to a roller drive shaft 20, and the roller 24 initiates turning, so that the uppermost recording paper X is fed out to a paper feeding path 17.
Patent JP-S63266254-A (JP)
Title: Hydraulic control device for automatic transmission
Inventor: BOTA KEIJI
IPC: F16H61/10
Filed: 1987-04-23
Abstract: PURPOSE:To effectively relieve a gear shifting shock, by a method wherein, during the initial stage of engagement of a servo mechanism, the pilot pressure of a solenoid valve produces a working oil pressure on the servo mechanism, and approximately after completion of engagement, the line pressure of a pressure regulating valve produces a working oil pressure as usual. CONSTITUTION:When, during the initial stage of a demand for engagement of a servo mechanism 10 of a transmission, a pilot pressure on a pressure regulating valve 30 is set to a low value by means of a solenoid valve 38, a switching valve 41 is situated in a normal position, low pilot pressure is fed to the servo mechanism 10. Thereby, the engaging motion of the servo mechanism 10 is rapidly performed to effectively relieve a gear shifting shock. Thereafter, when the servo mechanism 10 is engaged and the pilot pressure is set to a high value by means of the solenoid valve 38, the switching valve 41 is switched from a normal position to a switching position, and the line pressure of the pressure regulating valve 30 is fed to the servo mechanism 10. In this case, since the working time of the pilot pressure on the servo mechanism 10 can be managed by the solenoid valve 38, it can be managed irrespective of viscosity of oil.
Patent JP-S60245115-A (JP)
Inventor: KURIBAYASHI TAKASHI
IPC: H01G9/00
Filed: 1984-05-18
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H11297917-A (JP)
Title: Semiconductor device and its manufacture
Inventor: SAKAMOTO HIRONORI
IPC: H01L23/50
Filed: 1998-04-13
Abstract: PROBLEM TO BE SOLVED: To reduce the manufacturing cost of a semiconductor device to the same level as that of the conventional SOP/QFP type resin-sealed semiconductor package and, at the same time, to increase the packaging density of the device to the same density as that of lead-less semiconductor device. SOLUTION: A resin sealed semiconductor package 18 has no outer lead. In the package 18 in which a semiconductor chip 15 is sealed with a resin in a package, in other words, the bottom and side faces of inner leads 12 are exposed from a molded resin section 17 and connected to the wiring pattern of a printed wiring board 19 through solder layers 20. Namely, the bottom and side faces of the inner leads 12 exposed from the molded resin section 17 function as the external connecting terminals of the resin sealed semiconductor package 18.
Patent JP-S60246048-A (JP)
Title: Video tape recorder
Inventor: KUBO MORIHIRO
IPC: H02P29/00
Filed: 1984-05-19
Abstract: PURPOSE:To attain the automatic control of each servo control part and to simplify the control of a video tape recorder, by comparing the phases of a capstan and a cylinder motor and a digital control signal obtained from a speed signal with the standard data stored previously. CONSTITUTION:The capstan reference phase data obtained by converting digitally the capstan phase control signal of a reference level, i.e., a capstan phase control signal of 1/2 power supply voltage V of a servo circuit is stored in a reference value memory 41 for capstan phase consisting of a ROM. A coincidence circuit 40 compares the capstan detection phase data with the capstan reference phase data with the timing of the 1st clock pulse for capstan control. When the coincidence is obtained from said comparison and the capstan phase control voltage is set at an optimum level, the circuit 40 delivers a count stop signal to a counter 37. Thus the counter 37 stops its counting action. In this case, the count value of the counter 37, i.e., the data on designation of a capstan speed time constant is written and stored to a capstan phase control voltage memory 42 consisting of a RAM. Thus the control is through with the capstan phase control voltage.
Patent JP-H04459-A (JP)
Title: Multicolor printing device
Inventor: FUKUSHIGE FUMIO
IPC: G02B27/00
Filed: 1990-04-17
Abstract: PURPOSE:To start to form a latent image by the specified surface of a rotary polygon mirror and to decrease color slurring by detecting the specified position of a photosensitive body and the specified rotating position of the polygon mirror and controlling the rotating speed of the polygon mirror in accordance with a time difference between them. CONSTITUTION:When the motor 7 of the rotary polygon mirror 6 is rotated, a timing pulse generation part 16 outputs a pulse synchronizing with the rotation to a timing pulse correction part 17. When scanning light reflected on the plane mirror M1 of the mirror 6 passes a photosensor 8, a scanning start pulse generation part 9 generates a scanning start pulse (a). Then, a signal from the generation part 9 is frequency- divided by a frequency divider circuit 14, ad a polygon mirror selection signal (b) is outputted. A comparison part 15 compares the time difference between the pulse (a) and the signal (b) and transmits the difference signal to the correction part 17, then the correction part 17 freqency-corrects the pulse from the generation part 16 in accordance with the output of the comparison part 15. Then, the comparison part 20 compares the phases of the signal from an oscillation part 19 and the signal from the correction part 17 and transmits the difference signal to a driving part 21 so as to control the driving of the motor 57.
Patent JP-H05296057-A (JP)
Title: Supercharger device
Inventor: TERAOKA MASAO
IPC: F16H9/18
Filed: 1992-04-22
Abstract: PURPOSE:To improve fuel consumption after holding drivability improved by providing a rotational speed changer driven by an internal combustion engine, mechanical supercharger for performing a supercharge of the internal combustion engine and a controller provided with an actuator. CONSTITUTION:A driven pulley 22 has a fixed sheave 24, fixed to an input shaft 10, in a right side and a movable sheave 25, movable in an axial direction, in a left side relating to this fixed sheave, to form a V-groove 29 onto which a belt 28 is wound. A centrifugal force generating roller (weight) 27 is held between a back surface of the movable sheave 25 and a cone plate 26 fixed to the input shaft 10. Five sheets of belleville springs 41 are provided in a movable sheave 38 between itself and an end plate 40 positioned in the back surface and a cylindrical part 36, and the sheave 38 can be moved in the axial direction by receiving energizing force of the springs 41. Since a rotational speed of a supercharger 1 is controlled so as to be changed by controlling energizing force of a belleville spring 41, provided in a drive pulley 34, by an actuator 44, hydraulic pressure source 54, valve 55 and a regulator 57, a control unit 59 is constituted to control a rotational speed changer 58.
Patent JP-S60245040-A (JP)
Title: Image display system
Inventor: KAWARAI KENJI
IPC: G06F3/153
Filed: 1984-05-18
Abstract: PURPOSE:To facilitate operation and to improve the efficiency, and to hold original images by inputting two images obtained by segmenting both original images and a segmentation mask image to an OR circuit directly. CONSTITUTION:When the composite image of two original images is generated and displayed, memories 1, 2 stored with the 1st and the 2nd original image data and a mask plane 3 stored with the mask image are scanned firstly. Output signals of an inverter 4 which inverts corresponding bit signals, i.e. signals of the mask plate 3 and the memory 1 are inputted to an AND circuit 5 to perform segmenting operation so that the 1st original image is made colorless in the shape of the image of the mask plane 3. Then, the signals of the mask plane 2 and memory 2 are inputted to an AND circuit 6, and extraction is performed on the basis of its output to extract only the mask plane area form the original images. Then, image segmentation outputs of both circuits 5, 6 are inputted directly to the OR circuit 9; the need for feedback is eliminated to facilitate the operation and improve the efficiency, and the original images are held.
Patent JP-S62256911-A (JP)
Title: Heat-resistant bellows device which can expand and contract multi-dimensionally
Inventor: KOYAMA YUJI
IPC: C21D1/00
Filed: 1986-04-30
Abstract: PURPOSE:To substantially assure the heat resistance of a device under flow conditions of high-temp. fluid by forming inside and outside connecting bodies in such a manner that said bodies can be expanded and contracted by the bellows connected to the inside surface and integrally forming the two connecting bodies via a sliding member. CONSTITUTION:The heat resistant inside bellows 8 formed by laminating rubber, etc., via a heat radiating material 6 is airtightly connected to the inside of the inside connecting body 2. The outside bellows 21 is similarly connected to the inside of the outside connecting body 3. A heat insulating material 9 is circumferentially provided to the inside peripheral side of the bellows 8 of the inside connecting body 2 and a heat insulating material 11 is internally provided to a sleeve 10 fixed to the other end side. The sleeve 10 is slid axially along a guide cylinder 12 by a sliding bar 13. Sealing materials 16, 17 are fixed to the flange 4 surface of the inside connecting body 2 and the two connecting bodies 2, 3 are relatively moved in contact with a flange 18 in common use for sliding the outside connecting body 3. The temp. to be transmitted to the outside of the high-temp. fluid flowing in the bellows devices 2, 3 is thereby decreased.
Patent JP-H09273100-A (JP)
Title: Paper having tacky agent
Inventor: SASAKI YASUKO
IPC: B32B7/12
Filed: 1996-03-31
Abstract: PROBLEM TO BE SOLVED: To obtain paper to which a tacky agent is attached, having simple structure, capable of readily printing by printer, etc., and capable of readily attaching to wall, desk, etc., after printing. SOLUTION: This paper to which a tacky agent is attached is obtained by folding end parts of sheet paper 1, forming overlapped parts 2 and 3 and applying tacky agents 4 and 5 capable of reattaching and releasing on at least one side of inner sides of the overlapped parts.
Patent JP-H06307986-A (JP)
Title: Power train test equipment
Inventor: BABA FUMIHIKO
IPC: G01M17/007
Filed: 1993-04-28
Abstract: PURPOSE:To test a power train with driving torque containing a pulsation torque equivalent to that of an engine by applying the low frequency output signal from a pulsation torque generating section to a torque control system whereas applying the high frequency output signal to a crrent control system thereby controlling the input current to a drive motor. CONSTITUTION:The number of cylinders of an engine 181 is set at a setting section 181 whereas the width, amplitude and waveform of pulsation torque are set at a setting section 182. A pulsation torque generating section 18 outputs a detected 11 rotational speed and pulsation torque signals corresponding to set values 181, 182. A low frequency signal passed through an LPF 19 is added to an output signal from a torque setting section 1 to produce a torque command signal whereas a high frequency signal passed through an LFP 20 is added to an output signal from a control section 3 to produce a current command signal. Input currents to drive motors 81, 82 are then controlled through a torque control system and a current control system thus driving a power train 12 through the output shaft of the driving section 23 of a machine to be tested having an inertial value equivalent to that of an engine.
Patent JP-H07288389-A (JP)
Title: Electronic device
Inventor: INOUE NOBUTAKA
IPC: H05K7/00
Filed: 1994-04-15
Abstract: PURPOSE:To provide an electronic device which can fix an AC code inside a case body easily without using an excessive member. CONSTITUTION:A recessed groove 8 is formed in a rear wall 5 of a case body 1. A projection piece 10 is formed in right and left side walls 9 in the recessed groove 8. An AC code 3 is put inside the recessed groove 8 meandering after the projection piece. The AC code 3 is not higher than the rear wall 5 in the circumference and does not project into a case.
Patent JP-H04257439-A (JP)
Title: Composite material
Inventor: NISHIHARA YOSHIO
IPC: C08J5/04
Filed: 1991-02-08
Abstract: PURPOSE:To provide a composite material on which the coating having heat resistance and being free from pinhole-like peeling is formed. CONSTITUTION:A composite material wherein a woven cloth or an unwoven cloth is coated with or impregnated with heat-resistant paint consisting of polyborosiloxane, a silicone resin, a granular inorganic filling material and a short-fibrous inorganic filling material.
Patent JP-H08295094-A (JP)
Title: Agitator for writing instrument
Inventor: TOYAMA SHOHEI
IPC: B43K7/02
Filed: 1995-04-26
Abstract: PURPOSE: To rapidly and efficiently redisperse the solid component of ink by improving the comminuting action of cake. CONSTITUTION: An agitator A contained in a barrel C together with ink B in which solid and liquid components are separated to comminute cake B-1 formed by precipitating and aggregating the solid component of the ink B at the time of vigorously shaking the barrel C and to agitate to redisperse the solid component comprises a weight 1 and an elastic member 2 elongated or contracted at the time of vigorously shaking the barrel C, wherein the weight 1 is connected to the member 2.
Patent JP-H05270097-A (JP)
Title: Method and apparatus for printing
IPC: G06F3/12
Filed: 1992-03-30
Abstract: PURPOSE:To print printing data bit map-developed on a record medium which can be fed at present in an optimum state. CONSTITUTION:Printing information to be externally input is analyzed, printing data is developed in a bit map memory 23, and printed on a record medium which can be fed while variably multiplying the printing data developed based on a comparison result of a sheet size to be able to be fed and an output size designated by the printing information.
Patent JP-S5625848-A (JP)
Title: Frame synchronizing system
Inventor: FUJIMOTO NAONOBU
IPC: H04J3/06
Filed: 1979-08-10
Abstract: PURPOSE:To make close the frame synchronizing pulse, by transmitting the frame synchronizing auxiliary pattern pulse signal in 7 bits when the specific channel is at noncommunication state, to constitute the synchronizing information of one-frame 8 bits. CONSTITUTION:When the channel CH5 is at noncommunication state, ground signal is fed to the transmission signal line 2. The ground signal is delivered to the auxiliary frame pulse generator 10 from the transmission end corresponding to the channel CH5, and thus, the auxiliary frame pulse generator 10 produces the specified pattern signal in 7 bits. At the reception side, besides the frame synchronizing bit, the pattern state of the frame synchronizing auxiliary pattern pulse signal is detected with the frame synchronizing circuit 17. If the frame synchronizing circuit 17 detects the error in the frame synchronizing pattern and regards it as the out of synchronizm, the synchronism is again taken.