baber/WOPTO huggingface dataset:
Patent JP-H01194790-A (JP)
Title: Digital chrominance signal demodulation circuit
Inventor: KAWANO TSUTOMU
IPC: H04N9/04
Filed: 1988-01-29
Abstract: PURPOSE:To eliminate a need for the fine adjustment of the DC potential of a chrominance signal by adding/subtracting the differential of input center values at the center potential of the chrominance signal and an A/D conversion means to/from the chrominance signal. CONSTITUTION:In the title circuit, between the output of the A/D conversion circuit 1 and sample-hold circuits 3, 4, a feedback circuit 10 consisting of a sample-hold circuit 7, a subtraction circuit 8, and an adder-subtractor circuit 9 is provided. The circuit 7 samples the chrominance signal at the timing of the leading edge of a horizontal synchronizing signal, and supplies as output to the circuit 8. The circuit 8 obtains the difference between this output and a reference data corresponding to the center value of the input range of the circuit 1, and supplies this difference to the circuit 9. The circuit 9 adds/subtract this differential to/from a ditized chrominance signal that is an output from the circuit 1.
Patent JP-H0619029-A (JP)
Title: Silver halide photographic sensitive material
Inventor: TAKADA SHUNJI
IPC: G03C7/396
Filed: 1993-01-14
Abstract: PURPOSE:To provide a high-sensitivity silver halide photographic sensitive material exhibiting a high contrast photographic characteristic and without the photographic characteristic being deteriorated even when the emulsion is kept for long term as the soln. CONSTITUTION:This photographic sensitive material has at least one silver halide emulsion layer on a substrate. The photosensitive silver halide grains including the plate grains having >=2 aspect ration in >=50% of the total projected area of the grains and a polymer shown by the formula by 10<-3>g to 10g per mol of silver halide are incorporated into at least one emulsion layer. In the formula, A is a repeating unit derived from an ethylenicaly unsaturated monomer having at least one basic nitrogen atom, B is a repeating unit derived from the monmer other than B, (x) and (y) are the wt.% of each component, x=0.1 to 100, and y=0 to 99.9.
Patent JP-2000222785-A (JP)
Title: Production of optical information recording medium and producing device therefor
Inventor: AMAN YASUTOMO
IPC: G11B7/26
Filed: 1999-01-29
Abstract: PROBLEM TO BE SOLVED: To provide a producing method of an optical information recording medium in which thermal deformation of a disk substrate is decreased or prevented in the medium consisting of a transparent substrate and a reflection layer, recording layer, protective layer and dielectric layer or the like formed as thin films by using a sputtering device on the substrate. SOLUTION: In the producing method and the producing device of an optical information recording medium, the optical information recording medium is produced by laminating thin films of reflection layer, recording layer, protective layer and dielectric layer on a disk substrate. In the process of laminating the layers on the substrate, the members such as a mask and a substrate carrier in contact with the substrate are made of a material having the same or almost the same thermal conductivity and/or coefft. of thermal expansion as those of the substrate.
Patent JP-H04259235-A (JP)
Title: Wafer chuck apparatus
Inventor: TANAKA KUNIYOSHI
IPC: B65H5/00
Filed: 1991-02-14
Abstract: PURPOSE:To provide a wafer chuck apparatus which can employ both vacuum and electrostatic chuck, by mounting two oscillators on a chuck surface, transferring an oscillation from a first oscillator through a wafer as a medium to a secondary oscillator, and observing conditions on a chuck surface by use of a received wave at the secondary oscillator. CONSTITUTION:An oscillator 16 is buried entirely in an arm 12 except for the top face thereof, wherein the top face is made flush with the top face of a chuck mechanical section 13 so that the top face of the oscillator 16 also constitutes a part of wafer chuck surface. Also, a ceramic oscillator 17 is set at a position closer to the end of an arm 13 than a chuck mechanism 15, wherein the top face of the oscillator 17 is make flush with that of a chuck mechanism 14 so as to constitute a part of the wafer chuck surface. When a normal wafer is normally taken up by the chuck, an oscillation is transferred with a given impedance for a normal wafer from the oscillator 16 to the oscillator 17.
Patent JP-S60165110-A (JP)
Title: High frequency power amplifier circuit
Inventor: MATSUZAKI KAZUHIRO
IPC: H03F3/24
Filed: 1984-02-08
Abstract: PURPOSE:To attain the miniaturization of the titled circuit and to improve the mass-productivity by inserting a negative feedback circuit between intermediate taps of an inductor placed between an emitter and a base of an amplification transistor (TR) and an inductor for collector feeding so as to eliminate the need for any ferrite core. CONSTITUTION:Inductors 22, 23 consisting respectively of a microstrip line are connected to an emitter and a collector of a TR21. Furthermore, a negative feedback circuit 28 is formed by a capacitor 27 and an inductor 26. The inductance of the inductor 22 is La, the inductance between an intermediate tap B and a common terminal is Lb, the inductance between the intermediate tap C and the collector is Lc and the inductance between the intermediate tap C and a power terminal 24 is Ld. In order to prevent the low frequency oscillation, the La, Lc are selected to a small value close to the limit possible for the impedance matching between the input side circuit and the output side circuit and various constants of the circuit is selected so that the phase of the current flowing from the input side to the Lb is opposite to the phase of the current flowing from the output side.
Patent JP-H08212561-A (JP)
Title: Data recording medium and recording/reproducing device using the same
Inventor: KAWAMURA MAKOTO
IPC: G11B27/00
Filed: 1995-01-13
Abstract: PURPOSE: To enable a multilayered disk to be accessed at a high speed. CONSTITUTION: Inner guard areas 2, program areas 3 and outer guard areas 4 are formed in respective layers of a multilayered disk 1 and positions in the radial direction of these areas are made to coincide with each other. The recording direction in the uppermost layer is made to be a recording direction heating from the inner peripheral side to the outer peripheral side and the recording direction in the next layer is made to be a recording direction heading from the outer peripheral side to the inner peripheral side. In this manner, recording directions are made alternative. Then, the recording completion position of the uppermost first layer and the recording start position of the next second layer are made to be at the same radial position.
Patent JP-S54113157-A (JP)
Title: Apparatus for automatically operating articulated robot
Inventor: HASEGAWA AKIRA
IPC: B25J9/16
Filed: 1978-02-24
Abstract: PURPOSE:To cause horizontal linear motion and its uniform motion of an articulated robot with ease, by automatizing turning, expansion and contraction of the robot while effecting only vertical movement by hand. CONSTITUTION:Turning bed 2 is mounted on base 1 in the manner that it can be turned about a vertical axis. Robot arm B is provided with an upper arm 4, fore arm 9 and cylinders 5, 11 for actuating the arms 4, 9. Turning angle theta of handle frame 14 is detected by potentiometer 19 which in turn produces a signal proportional to the turning angle theta, whereby servo valve 25 is set into operation and turning bed 2 is turned through rotation of turning motor 27. Further, servo valves 30, 31 are set into operation in response to signals from potentiometers 20, 21 adapted for detecting angles alpha and beta formed by upper handle 15, handle frame 14 and fore handle 17, respectively, so as to apply hydraulic pressure to cylinders 5, 11 and to thereby actuate arms 4, 9.
Patent JP-H02202110-A (JP)
Title: Chattering signal elimination circuit
Inventor: AKIYAMA SHINJI
IPC: H03K5/1254
Filed: 1989-01-30
Abstract: PURPOSE:To dissolve a defect which requires much time to eliminate a chattering signal in conventional technique by eliminating chattering by hardware. CONSTITUTION:In the case of inputting 29 a high level >= three clocks, the level 25 of an output terminal 10 goes to a low level, and in the case of inputting 32 the low level >= three clocks, the level 25 of the output terminal 10 goes to the high level. However, only the output level 22 of an EXOR gate 4 goes to the high level by high level input 27 equivalent to one clock or low level input 31 equivalent to one clock. Also, since only the output level 22 of the EXOR gate 4 and the output level 23 of a flip-flop 1 go to the high levels by high level input 28 equivalent to two clocks or low level input 30 equivalent to two clocks, no inversion of the level 25 of the output terminal 10 occurs. Thereby, the chattering signal can be eliminated at high speed.
Patent JP-H03226050-A (JP)
Title: Reception data resequencing system
Inventor: KIMURA MEGUMI
IPC: H04L12/70
Filed: 1990-01-30
Abstract: PURPOSE:To manage the sequence of a reception data without constituting a reception data chain by making a sequence number of the reception data coincident with a reception data management area individual entry number. CONSTITUTION:A window management area 11 points out a reception data management area 12 to manage a newest window range 14 and a data high order notice unit 15 by using reception data management area individual entry numbers 12-1-12-n. The reception data management area 12 manages data except for data at the outside of the window and duplicate data among the received data. A sequence number of a head data in the unit of succeeding host notice is always made coincident with a head entry number of the reception data management area 12 in the data storage system and the reception data management area individual entry number is calculated from the sequence number of the reception data and stored by chaining the reception data with a relevant entry.
Patent JP-S61178534-A (JP)
Title: Air-fuel ratio controller for engine
Inventor: TAWARA YOSHITAKA
IPC: F02D41/00
Filed: 1985-02-05
Abstract: PURPOSE:To prevent misfire without impairing output response by providing an air-fuel ratio adjusting means for adjusting the air-fuel ratio of an air-fuel mixture and a controlling quantity setting means for setting the varying rate of air-fuel ratio. CONSTITUTION:By measuring time at which flame is transmitted from a first ion sensor 10 to a second ion sensor 11, combustion speed is detected by means of an engine control unit 12. A load is detected by an air flow meter 4 and a crank angle sensor 14. The engine control unit 12 has an air-fuel ratio adjusting means and a controlling quantity setting means. The controlling quantity setting means sets the varying rate of air-fuel ratio. Thus, a misfire which takes place when shifting to low load, can be prevented without impairing output response on shifting to high load.
Patent JP-H11199313-A (JP)
Title: Plate for slide gate and its production
Inventor: ITO KAZUO
IPC: C04B35/103
Filed: 1998-01-19
Abstract: PROBLEM TO BE SOLVED: To provide a plate for a slide gate, having a small apparent porosity, a narrow pore diameter distribution and an improved balance among strength, heat shock resistance and corrosion resistance in comparison with conventional plates, and to provide a method for producing the same. SOLUTION: This plate for a slide gate comprises a sintered refractory obtained by adding 3-10 outer wt.% of a thermosetting resin as a binder to 100 wt.% of a mixture comprising (A) 73-96 wt.% of a refractory aggregate comprising one or more kinds of refractory inorganic materials, (B) 0.1-0.5 wt.% of fibrous metal aluminum, (C) 1-5 wt.% of flaky metal aluminum powder, (D) 2-10 wt.% of carbonaceous powder, and (E) metal silicon powder in an amount of 0.2-2 times the total wt.% of the fibrous metal aluminum and the flaky metal aluminum powder, kneading the mixture, molding the kneaded product and sintering the molded product.
Patent JP-H02202257-A (JP)
Title: Voice mailbox
Inventor: OOKATA HIROFUMI
IPC: H04M3/533
Filed: 1989-01-31
Abstract: PURPOSE:To increase the number of times of posting of messages by preparing an external interface part which can transmit the posted messages connected to a bus for improvement of the voice store service and accepts the operations of a supervisor to give the instructions to a mailbox main body. CONSTITUTION:A network control part 1, a voice coding/decoding part 2, a store control part 3, a CPU 4, a main memory part 5, and an external interface part 6 are connected to each other via a bus 7. When a switch 11 is pushed, the part 6 informs the CPU 4 of generation of an external instruction via the bus 7. The CPU 4 receives the information and checks the presence or absence of messages in a mailbox via the part 5. If the presence of a message is confirmed, an incoming message information call part 10 included in the part 1 issues an instruction to the owner of the mailbox to transmit a call. At the same time, an instruction is given to the part 3 to take a relevant message out of a store part 8. Then the message is sent from the part 1 after the message is decoded via the part 2.
Patent JP-S59147156-A (JP)
Title: Speed change gear for vehicle
Inventor: NISHIMURA SADANORI
IPC: F16H45/02
Filed: 1983-02-14
Abstract: PURPOSE:To prevent drop of power transmission efficiency by furnishing the fluid joint interposed between engine and clutch with an aux. clutch, which can be engaged and disengaged freely, and thereby lessening slip of the fluid joint while the car is in normal high-speed running. CONSTITUTION:Output from an engine 1 is transmitted to driving wheels 5 of the vehicle through a fluid joint 2, speed-changing clutch 3 and manually operated speed changer 4. This manual speed changer 4 is to carry out speed change with five forward positons associate with one backward positon, wherein five transmission systems G1, G2, etc. for said forward positons and one backward transmission system GR are provided between a driving shaft 4a in connection to said speed changing clutch 3 and a driven shaft 4b in connection to said driving wheels 5. The forward systems G1, G2, etc. shall be established selectively by each synchro- meshing mechanism 6 interlocked with a shift lever, while the backward system GR is equipped with an intermediate idle gear 8 to be changed over by a shift fork 7 interlocked with the shift lever, and is established by changing-over of the idle gear to the backward position.
Patent JP-H09195596-A (JP)
Title: Trap bar device for door
Inventor: IKAWA MASAKATSU
IPC: E05B15/02
Filed: 1996-01-12
Abstract: PROBLEM TO BE SOLVED: To eliminate the unsteadiness of a door in the opening and closing direction of the door by providing a slide holder urged by a spring in a box provided in a recess in the floor surface to lock a trap bar having an inclined surface at the lower end thereof. SOLUTION: In a slide holder 4, there are provided a vertical surface 44, locking surface 45, inclined part of the surface 45, and engaging surface 46. A stopper of the holder 4 is provided on the inner wall of a box 3. An urging inclined surface 24 is formed at the lower end of an insertion body 22 and a surface to be locked 25 is formed on both sides of the lower end of the body 22. The holder 4 together with a spring is incorporated into a box 31 fitted in a recess in the floor surface and fixed at a predetermined position on the floor surface together with a cover 33. If a lower end of the body 22 is brought into an opening 34, the surface 24 is first brought into line contact with the upper end of the surface 44 to retract the holder 4 against the force of the spring and finally the surface 25 of the body 22 is brought into contact with the surface 45 of the holder 4. As a result, there is no need to finely adjust the position of the holder 4.
Patent JP-H05185114-A (JP)
Title: Production of rolled clad seamless pipe
Inventor: KIMURA SHIGEMITSU
IPC: B21B19/02
Filed: 1992-01-10
Abstract: PURPOSE:To suppress the generation of the galling flaws on the inside surface of a clad pipe stock by an elongater, the degradation in yield by boundary peeling and the degradation in pipe making efficiency and working rate by rolling the pipe at an elnogation rate of a specific range. CONSTITUTION:The clad pipe consisting of an inside pipe of an austenitic stainless steel contg. <=0.2% C, >=16.0% Cr and >=12.0% Ni, further, contg. >=1 kinds among >=1.0% Mo, >=0.1% Ti and >=0.1% Nb at need, and consisting of the balance Fe and unavoidable impurities and an outside pipe consisting of an ordinary steel is rolled. The clad pipe stock is elongated at >=5 deg. inclination angle of rolls and >=1.2 and <=1.7 elongation rate by the elongater. The production ratio is thus suppressed and the boundary peeling is prevented while the galling flaws of the inside surface are prevented.
Patent JP-H08216673-A (JP)
Title: Electric compressor driving device for automobile
Inventor: GOTO NAOMI
IPC: B60H1/32
Filed: 1995-02-09
Abstract: PURPOSE: To provide an electric compressor driving device for an automobile high in reliability and capable of stably driving an electric compressor for air conditioning. CONSTITUTION: A temperature detector 20 to detect temperature in an electric compressor driving device 1 or in its periphery is provided, and output to drive an electric compressor 11 is adjusted in accordance with output from the temperature detector 20.
Patent JP-S56120811-A (JP)
Title: Crankshaft for engine
Inventor: MISUMI MASANORI
IPC: F16C3/08
Filed: 1980-02-23
Abstract: PURPOSE: To reduce an engine noise by forming a slit in a crankweb on a straight line interconnecting the center lines of the respective shafts of a crankpin and a crankjournal.  
     CONSTITUTION: Between the crankpin 4 and crankjournal 2 of the crankweb 5 in the crankshaft 1, the slit 6 is formed on the straight line interconnecting the center lines of the respective shafts of the crankpin 4 and the crankjournal 2. With such a construction, a shock transmitted to the crankshaft 1 is partly absorbed by a resilient deformation of the slit 6 part of the crankweb 5, thereby depressing the vibrations of a cylinder block and reducing the engine noise. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-S55117710-A (JP)
Title: Recording and reproducing device
Inventor: IMAMURA MAKOTO
IPC: G11B20/10
Filed: 1979-02-28
Abstract: PURPOSE: To reduce distortion of recording and reproduction by recording an analog input signal by converting to a fixed signal, by negatively feeding the converted signal back to an input via a power inverter, and then by increasing the gain of the negative feedback circuit.  
     CONSTITUTION: Analog input signal Vi is applied to comparing amplifier 11 to obtain FM-modulated wave f 0  through voltage frequency (V-F) converter 12, and it is recorded on magnetic tape 15 by way of switch 13 and magnetic head 14. At the same time, this signal is demodulated through frequency voltage (F-V) converter 16. In reproduction mode, on the other hand, an FM-modulated wave reproduced by magentic head 14 is demodulated by F-V converter 16 to obtain original analog signal input V 0 . In this constitution, we have formula I denoting gains of amplifier 11, V-F converter 12 and F-V converter 16 as K 1 , K 2  and K 3 . Therefore, when K 1 K 2 K 3 ≫1, V 0 =V i , resulting in reduction in distortion. Namely, increasing the gain of the circuit makes it possible to reduce the distortion of recording and reproduction. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S61182623-A (JP)
Title: Leader tape for magnetic tape
Inventor: SHINTANI YUJI
IPC: G11B5/78
Filed: 1985-02-08
Abstract: PURPOSE:To prevent the disengagement of a hub owing to the friction characteristic of a printing layer and to improve wear resistance and cleanability by providing the printing layer on an antistatic matt surface layer on a transparent substrate film. CONSTITUTION:The matt surface layer 2 is formed on at least one side of the transparent substrate film 1. The printing layer 3 is formed on said layer 2. The excellent antistatic property is thereby provided to the tape and the wear resistance and cleanability of the layer 2 are improved. The tape is applied for automatic reversing as well as the tape is transparent. The disengagement of the hub from the fitting part during the use is prevented by the high friction characteristic of the layer 2 and the stability is assured.
Patent JP-H07164527-A (JP)
Title: Method and device for joining a plurality of tubular workpieces made of thermoplastic material
Inventor: TOOMASU BURINKAA SEIGAA
IPC: B29C65/06
Filed: 1992-01-10
Abstract: PURPOSE: To well join a plurality of workpieces made of a thermoplastic resin. CONSTITUTION: A plurality of workpieces 10A-10D, 12 to be joined mutually are laminated so that the inner surfaces of them are matched mutually and high frequency vibration is applied to the inner surfaces of the workpieces so that the motion of vibration becomes the matching direction of workpieces mainly. The thermoplastic material of the inner surfaces is softened and fluidized by the dissipation of vibration energy and, when vibration is completed, the thermoplastic material is cured to join the workpieces mutually. High frequency vibration is given by a horn 38 constituted so as to pref. resonate as a half wavelength resonator at an ultrasonic frequency in the range between 16 and 25 kHz.
Patent JP-H10207263-A (JP)
Title: Image forming device
Inventor: KUMAI HIROAKI
IPC: G03G15/16
Filed: 1997-01-21
Abstract: PROBLEM TO BE SOLVED: To prevent the useless cleaning sequence from the execution, and to prolong a service life of hardware by performing a cleaning, only in the case a transfer roll is soiled. SOLUTION: An optical sensor 6 converting to an electric signal on detecting reflection light from a paper sheet rear side transported on a transporting path 9 at uniform speed, in the post step of a fixing device 11. A decision circuit 4, based on an output signal of the optical sensor 6, detects the dirt stuck on the rear side of the paper sheet 3 passing through a secondary transfer position 32, and decides whether the dirt is derived from the transfer roll 8, based on this detection result. Then, in the case of deciding that the dirt is derived from the transfer roll 8, the cleaning request signal is output to a computer 100. The computer 100, on inputting the cleaning request signal, executes the cleaning sequence in the suitable timing.  When the cleaning sequence is started, a switch 7 is turned to the cleaning power source 16, and high voltage opposite to the transferring period is applied on the transfer roll 8.
Patent JP-H08194331-A (JP)
Title: Electrophotographic color toner and image forming method
Inventor: HASHIMOTO MASAKI
IPC: G03G9/09
Filed: 1995-01-18
Abstract: PURPOSE: To provide an electrophotographic color toner which suppresses the brightness of color images, forms the images having less unequal gloss in spite of use of an original having parts to produce differences in development quantity, has excellent environmental stability, preservable property and flow property and is capable of forming the images having stable image quality in spite of many sheets of copying an an image forming method capable of stably forming many sheets of the images free from the unequal gloss. CONSTITUTION: This electrophotographic toner contains toner particles contg. a binder resin and coloring agents and fine powder having an average particle size of 0.22 to 1μm and a refractive index of 1.55 to 2.70 as a gloss control agent. This image forming method has a stage for forming a latent image on a latent image carrying member, a stage for developing the latent image by using the electrostatic charge image developing toner compsn., a stage for transferring the developed toner image on a transfer medium and a stage for heat-fixing the toner image on the transfer medium.