baber/WOPTO huggingface dataset:
Patent JP-H07220276-A (JP)
Title: Bias magnetic field generator for transfer in transfer device for magnetic recording information
Inventor: MORIYAMA MASARU
IPC: G11B5/86
Filed: 1994-02-03
Abstract: PURPOSE:To lower the magnetic field intensity in the skirt part of an attenuation gradient by weakening the magnetic field intensity in a position apart in the traveling direction of a magnetic recording medium from a main magnetic pole by the magnetic fluxes generated by eddy currents. CONSTITUTION:The eddy currents are generated by interlinkage of a part of the magnetic fluxes flowing between the main magnetic pole of a magnetic head TBH for generating bias magnetic fields for transfer and the outer peripheral surface of a rotating magnetic cylindrical body 9 in a correcting member 10E of a magnetic field intensity distribution constituted by a nonmagnetic and conductive metallic material. The magnetic field intensity in the position apart in the traveling direction of the magnetic recording medium 7 from the main magnetic pole 19 is weakened by the magnetic fluxes generated by such eddy currents. As a result, the magnetic field intensity of the skit part of the attenuation gradient in the magnetic field intensity distribution characteristic curve near the main magnetic pole is lowered.
Patent JP-H01208027-A (JP)
Title: Encoder
Inventor: HAYASHI SOKICHI
IPC: H03M7/00
Filed: 1988-02-15
Abstract: PURPOSE:To obtain an extremely thin encoder by arranging plural N-type or P-type semiconductors movable relatively as being brought into contact with P-type or N-type semiconductor pieces keeping an equal interval in a travel direction. CONSTITUTION:When a rotary shaft 12 rotates and the N-type semiconductor piece 11 is located between the P-type semiconductor pieces 5 and 8, the semiconductor pieces 5, 11, and 8 constitute a PNP transistor, and an electrode 14 functions as a base terminal, and an electrode 9 as an emitter terminal, and an electrode 6 as a collector terminal. Therefore, a switching current flows by a voltage impressed from the electrode 14 advancing to the electrode 9. When the rotary shaft 1 rotates further and a movable insulating substrate 10 is interposed between the semiconductor pieces 5 and 8, no transistor is formed, and a base current and the switching current are cut off. Thenceforth, the switching current repeats ON/OFF with a period decided by a pitch S according to the rotation of the rotary shaft 1, and the amount of rotation of the rotary shaft 1 is detected based on the ON/OFF of the switching current.
Patent JP-H0510455-A (JP)
Title: Fluid controller
Inventor: TANIGAWA TAKESHI
IPC: F16K31/50
Filed: 1991-02-26
Abstract: PURPOSE:To eliminate the generation of hammering noise at the slightly opened time from the totally closed state and enable fine flow adjustment. CONSTITUTION:The lower end part of a valve stem 19 is rotatably fitted to the upper end part of a valve body 26, and the valve stem 19 is rotated and moved vertically to move the valve body 26 vertically. With its downward movement, the valve body 26 is brought into contact with a valve seat 5 and seated thereon to close a fluid passage 4. With its upward movement, the valve body 26 is separated from the valve seat 5 to open the fluid passage 4. There is also provided a plate spring (elastic member) 32 for energizing the valve body 26 upward in the vicinity of its seated position where the valve body 26 is brought into contact with the valve seat 5 so as to press the valve body 26 to the valve stem 19 with the specified force.
Patent JP-S57145495-A (JP)
Title: Video signal processing circuit
Inventor: YOKOYAMA TAKEO
IPC: H04N5/775
Filed: 1981-03-03
Abstract: PURPOSE:To prevent the lowering of the picture quality, by separating the chrominance signal from the luminance signal through just a single wide-band comb filter and accordingly simplifying the circuit constitution as well as eliminating the shift of both the delay time and the phase. CONSTITUTION:A composite video input signal IN containing the luminance and chrominance signals and extracted out of a recording medium is modulated to the frequency of a TV picture receiver through a modulating circuit 41 and by the modulated frequency given from an oscillating circuit 40. This modulated signal is added with a modulated signal which is delayed by a prescribed time by an ultrasonic solid state delay line 32 of a wide-band comb filter CF through an adder circuit 42 and at the same time receives a subtraction through a subtractor circuit 43 to be separated into the luminance and chrominance signals. On the other hand, the output of the circuit 42 is demodulated to a luminance signal band by a demodulating circuit 44 and then added with the output of the circuit 43 to be turned into an output signal.
Patent JP-S54123917-A (JP)
Title: Optical information reproducer
Inventor: YAMAGUCHI TAKASHI
IPC: G11B7/1398
Filed: 1978-03-20
Abstract: PURPOSE:To improve the percentage modulation of information signal, achieve the reduction in waveform distortion and improve tracking characteristics by forming the spots for signals and tracking beams in specified shapes. CONSTITUTION:Laser beams which are slender to the junction faces and are large in spreading angle in the direction rectangular to the junction faces are emitted from double hetero type semiconductor lasers 11 thru 13. Hence, if the lasers 11 thru 13 are arrayed in the specified direction, an information disc 19 is radiated by the spot 22 for signals of an oval shape in the direction rectangular to a signal track 21 and 23, 24 of an oval shape in the track 21 direction. The reflected laser light from the disc 19 is then detected as information signal light and tracking signal light in photo detectors 111 thru 113, whereby the reproduction of the information and tracking are accomplished. Because of these shapes of the spot light, the spot length becomes shorter in the signal row, resulting in the improved percentage modulation of the reproduction signals. In addition, waveform distortions are decreased by the specified spot width. Likewise, the shape of the spot for tracking becomes sharp in rise and fall at the time of crossing the tracks, thus tracking control is accomplished with good sensitivity.
Patent JP-S53116508-A (JP)
Title: Vane pump
Inventor: YOSHIMURA TOSHIMITSU
IPC: F04C18/352
Filed: 1977-03-23
Abstract: PURPOSE: To prevent hammering sound by the impacts at the top of vane material and to improve sealing capacity when vane material passes outflow inlet part of vane pump which is used to supply secondary air into exhaust passage of engine. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-H04271577-A (JP)
Title: Gamma correction system for liquid crystal display device
Inventor: HAMAKAWA HIROYUKI
IPC: H04N5/202
Filed: 1991-02-27
Abstract: PURPOSE:To reproduce a picture with much fidelity to an object by implementing gamma correction so that a display of a liquid crystal screen is close to the unity overall gamma upon the receipt of a television picture signal similarly as on the display of a cathode ray tube. CONSTITUTION:The characteristic of a transmission factor of a liquid crystal display device with respect to a video signal inputted to the liquid crystal display device is corrected in such a way that it is approximated with three polygonal lines having two polygonal points from a black level to a white level of the video signal in the gamma correction system of the liquid crystal display device for television picture display.
Patent JP-H08227796-A (JP)
Title: Light emitting device
Inventor: IWATA HIROSHI
IPC: H05B41/24
Filed: 1995-02-20
Abstract: PURPOSE: To emit a light from a fluorescent discharge tube in high emission efficiency by setting a light emitting device by the combination of a specified whole horizontal length of a piezoelectric transformer and a specified bore diameter of the fluorescent discharge lamp. CONSTITUTION: In a fluorescent discharge tube light emitting device, a piezoelectric transformer 3 is provided on the output side of an inverter circuit to eliminate the influence of the distribution capacity accompanying wiring. When the vibration mode of the piezoelectric transformer is λ-mode, the light emitting device is set by the combination in which the whole horizontal length is less than 58mm, and the bore diameter of a fluorescent discharge tube 7 less than 1.5mm.  For ones in which the vibration mode of the piezoelectric transformer 3 is set to λ/2, 3λ/2, the bore diameter of the light emitting discharge tube 7 is set less than 1.5mm, and the emission with the highest emission efficiency can be performed by the combination with the whole horizontal length of the piezoelectric transformer 3 necessary for providing a lighting driving frequency of 60kHz or more.
Patent JP-H01316520-A (JP)
Title: Joint for transmitting torque
Inventor: KURISUCHIAN RUTSUTSU
IPC: F16D3/26
Filed: 1989-02-13
Abstract: PURPOSE: To compensate for a play in a joint by making the separation plane of an intermediate part composed of two symmetrical shell half members come near to the axis of an inner joint pin and intersect the axis of an outer joint pin at right angles, supporting a spring on the inner joint pin and pressing the other end part of the spring to the inside of the shell half members. CONSTITUTION: An intermediate part 20 is composed of two substantially symmetrical shell half members 19. The separation plane 25 of each shell half member 19 includes the axis 14 of an inner joint pin 11 or is located closely adjacent the axis 14 and further intersects the common axis of an outer joint pin 8. At least one spring 15 is supported on the inner joint pin 11 and the other end parts are pressed to the inside of the shell half members 19. Thus, an error or a play in the joint can be compensated for.
Patent JP-H07240564-A (JP)
Title: Temperature-controlled shg laser
Inventor: YANO KOZABURO
IPC: G02F1/37
Filed: 1994-03-01
Abstract: PURPOSE:To arbitrarily change the wavelength of a radiated laser beam by a method wherein a thin-film resistor for heating is attached to a semiconductor laser chip and the control temperature of the semiconductor laser chip is changed. CONSTITUTION:As a basic structure, a thin-film resistor 1 is attached, so as to sandwich an insulating film 2, to the upper-end electrode of a semiconductor laser chip 3 of a VSIS structure. The semiconductor laser chip 3 of the GaAlAs- based VSIS structure is manufactured by using an MOCVD (metal organic chemical vapor deposition) method. Then, the SiO2 insulating film 2 is formed on the upper part of the upper-end P-electrode by a reactive vapor deposition method. By this constitution, since the temperature-controlled SHG laser can be used so as to be adjusted to a definite temperature or an arbitrary temperature as compared with conventional elements, it is excellent in the stability of an output wavelength and strength. Inversely, when a control temperature is changed, the SHG laser is provided with an effect so as to be used in a system which requires an arbitrary wavelength.
Patent JP-H11227133-A (JP)
Title: Prefabricated decorative panel and manufacture thereof
Inventor: YASUDA TOMOHIKO
IPC: B32B27/20
Filed: 1998-02-13
Abstract: PROBLEM TO BE SOLVED: To provide a prefabricated decorative panel which shows a superb appearance giving a feel of sophistication and also gives an impression that it is applied as if a single large size decorative board were used, even when plural pieces of panel are actually used and can be used itself as a part of a facing decorative board. SOLUTION: A pictorial pattern layer 5, a transparent plastic film layer 6 and, as the case may be, a clear coat layer 7 are sequentially laminated on one of the faces of a base material sheet 4 of polypropylene resin containing 30-80 wt.% of inorganic filler. In addition, a projecting strip part 1 worked by cutting is provided on one of the lateral faces of opposed parallel lateral faces on both sides of the prefabricated decorative panel, at the same position on the other lateral face of which, a recessed strip groove 1' worked by cutting is provided so that the projecting strip part 1 is fitted into the recessed strip part 1'.
Patent JP-H04247737-A (JP)
Title: Enciphering device
Inventor: NAKAO KOJI
IPC: G06F21/62
Filed: 1991-02-01
Abstract: PURPOSE:To obtain an enciphering device which has superior secrecy at the time of communicating with an unspecified party and whose key is easily controlled. CONSTITUTION:An external storage part 2 which stores self-intrinsic information (Xa) and a self-intrinsic information recognition element (F(Xa)) obtained by the function processing of Xa at every communication equipment is provided. Self-intrinsic information of the external storage part 2 is fetched in an internal storage device 32 only when the recognition element obtained by executing the same processing as the function processing as against self-intrinsic information (Xa) supplied from the external storage part 2 coincides with F(Xa) at the inside of an access disabled encipherment processing part from an outside. Self-intrinsic information is exchanged with an opposite party prior to the communication, the enciphering key is formed at least by self-intrinsic information concerned and opposite party-intrinsic information transmitted from the communication opposite party and information is enciphered by the generated encipherment key and transmitted to a line.
Patent JP-S54123908-A (JP)
Title: Record player system
Inventor: TAKIZAWA KAZUYUKI
IPC: G11B3/085
Filed: 1978-03-17
Abstract: PURPOSE: To prevent the occurrence of errors with records of various sizes by turning a drop position adjusting lever about the turning center of a lead-in lever, adjusting the relative angle of both levers with an adjust cam and adjusting the drop position of a tone arm.  
     CONSTITUTION: A lead-in lever 30 is provided to the lower side of a control cam which controls turning of the tone arm and a drop position adjust lever 31 of the tone arm is provided thereunder turnably coaxially to the boss of the lever 30. An eccentric adjust cam 79 of a drop position adjusting device 78 is mounted to one end of the lead-in lever 30. A tension spring 85 is spanned between the levers 30 and 31 to energize the lever 31 turnably in the counterclockwise direction with respect to the lever 30, at which time the protrusion 87 of the lever 31 is in contact with an adjust cam 79. The relative angle of the levers 30 and 31 is adjusted by turning and adjusting the adjust cam 79 with a driver, whereby the drop position of the tone arm is adjusted. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H05227881-A (JP)
Title: Preservation house
Inventor: SHINOHARA NORIKO
IPC: A23B7/148
Filed: 1992-02-19
Abstract: PURPOSE:To obtain a preservation house capable of retaining the freshness of vegetables and fruits for a long period by regulating the atmosphere and pressure in a container with an oxygen-enriching membrane. CONSTITUTION:The objective preservation house is constructed of an oxygen- enriching membrane module 21 installed in a lid body (12a) capable of hermetically sealing a vegetable container (11a) housed in a vegetable chamber (8a), a pump 26, connected to the membrane module and sucking the atmosphere in the vegetable container, a discharge port 27 for discharging the sucked gas into a cold air convection passage 19 installed on the outer periphery of the vegetable container, a discharge duct 24 for directly leading cold air from a cooler 22 to the vegetable container and discharging the cold air, a cold air suction port (20a) for sucking the cold air, circulating through the interior of the cold air convection passage and containing a discharge gas from the pump into a cold air discharge port (18a) and a suction duct 28 for leading the sucked cold air to the cooler.
Patent JP-S52114915-A (JP)
Title: Dc-dc converter
Inventor: FURUKAWA MASAMICHI
IPC: H02M3/28
Filed: 1976-03-23
Abstract: PURPOSE: Owing to supply the base current to oscillating transistor not only through starting resistor from input power source, but also through a resistor from output of rectifier circuit, to turn the input power source on runs a reliable starting and fluctuation of output voltage lessens. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S53116288-A (JP)
Title: Disinfectant-attached adsorbent
Inventor: NAKAYAMA TOKIO
IPC: A61L9/00
Filed: 1977-03-23
Abstract: PURPOSE: To provide a disinfectant-attached adsorbent obtd. by coating the surface of an adsorbent with a disinfectant and exposing part of the adsorbent from the disinfectant, by which adsorption such as deodorization, moisture absorption, etc. and disinfection can be carried out at the same time. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S62190246-A (JP)
Title: Plastisol composition
Inventor: TAKEMOTO KATSUO
IPC: C08K5/10
Filed: 1986-02-18
Abstract: PURPOSE:A composition having small temperature-dependent properties of physical properties in a wide temperature range from room temperature to low temperature and improved impact resistance, obtained by blending a graft polymer of ethylene-vinyl acetate copolymer and vinyl chloride and a polymerizable plasticier. CONSTITUTION:A composition containing (A) a graft polymer of ethylene-vinyl acetate copolymer and vinyl chloride and (B) a polymerizable plasticizer. EVA- G-PVC containing 5-25wt% EVA is preferable as the component A. Allyl acrylate, allyl methacrylate, etc., are preferable as the component B. The amount of all plasticizers including the component B blended is 40-100pts.wt.
Patent JP-H09227713-A (JP)
Title: Anti-reflection film and image displaying device
Inventor: NAKAMURA KAZUHIRO
IPC: G02B1/18
Filed: 1996-02-20
Abstract: PROBLEM TO BE SOLVED: To obtain a film having excellent mass-productivity and stain resistance and useful for preventing the reflection of external light in a liquid crystal display device, etc., by forming a low-refractive index layer in a thin resin film by a simple method. SOLUTION: The objective film is composed of a thin film made of a resin and a layer having a low refractive index and containing microvoids of a size smaller than the wavelength of light formed by reversed phase emulsification and included in the thin resin film. The low-refractive index layer preferably contains >=0.10 and <=0.50vol. fraction of micro-void. The layer having low refractive index is also usable as the top layer of a multi-layer film. For example, an anti-reflection film effective over a wide wavelength range can be produced by forming a layer having a refractive index higher than that of the substrate on a film substrate and forming a layer containing micro-voids on the high-refractive index layer.
Patent JP-2000232417-A (JP)
Title: Optical transmission system and device
Inventor: SAKAI HIROKI
IPC: H04B10/07
Filed: 1999-02-09
Abstract: PROBLEM TO BE SOLVED: To automatically adjust the output levels of the respective wavelengths of a self-station side so that the input levels of the respective wavelengths in an opposite station become uniform. SOLUTION: An optical signal monitoring circuit 20 always monitors an optical signal from a photocoupler circuit 17 and outputs a variety of information on the respective wavelengths, the light levels of the respective wavelengths and SNR(signal to noise ratio) to a monitoring and controlling circuit 21 as monitoring information.  The monitoring and controlling circuit 21 works and displays and processes monitoring information inputted form the light signal monitoring circuit 20, outputs in to the overhead bit insertion circuit 3 of respective transmitter parts 11, selects one of received light signal monitoring information inputted from the overhead bit separation circuits 7 of the respective transmitter parts 11, monitors the optical signal levels for the respective wavelengths in received light signal monitoring information and controls the output levels of respective optical amplifier circuits 14 so that the light levels for the respective wavelengths, which are monitored in an opposite station, become constant.
Patent JP-H08228051-A (JP)
Title: Laser oscillation device
Inventor: SANO KENJI
IPC: H01S3/091
Filed: 1995-02-21
Abstract: PURPOSE: To provide a laser oscillation device having a large output and a wide wavelength range of excitation light. CONSTITUTION: Linear electrodes 31 , 32 are formed on glass substrates 21 , 22 . A dye-mixing liquid crystal 1 is sandwiched between the substrates. In a liquid crystal cell 7 thus composed, a light transmission part is formed such that a light is not transmitted through an electrode. Reflectors 81 , 82 , are set below and above the liquid crystal cell 7, respectively. By introducing an excitation light 9 to the liquid crystal cell 7 through the reflectors 81 , 82 , laser oscillation occurs.
Patent JP-S61191028-A (JP)
Title: Electron beam exposure method
Inventor: MACHIDA YASUHIDE
IPC: H01L21/30
Filed: 1985-02-20
Abstract: PURPOSE:To make an oblique section to be steep by a method wherein from the relation between the left film rate and sectional slant angle is set up so that the oblique section angle is to be most steep then it becomes the desired rate, and an electronic computer makes a picture computing projection volume to be an objective pattern size and size correction volume. CONSTITUTION:A spot position of electron beam 20 irradiated on a sample 15 by an exposure device 11 is controlled based on a computer's pattern data. At the time of making the data, projection volume and pattern size correction volume are computed so that oblique section angle theta of negative resist 2 becomes the most steep left film rate and an objective pattern size. That is, the left film rate at the time when any size pattern's oblique angle theta is to be most steep, is required previously and correction volume (projection volume and corrected pattern size) is computed according to the size of the pattern so as to be said left rate.
Patent JP-S58150032-A (JP)
Title: Fuel injection control method of diesel engine
Inventor: NAGASE MASAOMI
IPC: F02D41/38
Filed: 1982-03-01
Abstract: PURPOSE:To prevent the smoke from emitting, by reducing the fuel injection quantity, then compensating for the reduced value by degees when one of the accelertor opening, fuel injection and intake pressure variations exceeds the setting value in time of sudden acceleration, etc. CONSTITUTION:In time of engine rotation, the basic fuel injection quantity is read out of a map inside a read-only memory 32 in response to each output of a solenoid pickup sensor 20 and an accelerator sensor 9, then the maximum injection quantity is found by means of a central processing unit 31 on a basis of the output of an intake pressure sensor 6. Next, on discriminating whether there is a sudden acceleration or not from the deviation value between the last time value and this time one of the acclerator opening, when the sudden acceleration is discriminted, the specified value is subtracted from the value of said maximum injection quantity whereby a linear solenoid 22 controlling a spill ring for injection quantity adjustment of a fuel-injection pump is controlled to be brought in the reduction direction. After compensating for the above-mentioned reduced value by degrees, the reduced one is so designed as to be increased up to the desired maximum injection quantity in this method.
Patent JP-S60174857-A (JP)
Title: Sink roll for hot dipping
Inventor: ISHII TOSHIAKI
IPC: C22C38/00
Filed: 1984-02-21
Abstract: PURPOSE:To improve the wear resistance of a sink roll by using a steel contg. specified amounts of C, Si, Mn, P, S, Ni and Cr as the material of the body and by providing specified Shore hardness to the surface of the body by work hardening. CONSTITUTION:The composition of the body of a sink roll for hot dipping is composed of, by weight, 0.15-0.4% C, 1.5-2.25% Si, 0.75-1.25% Mn, <0.03% P, <0.03% S, 9-12% Ni, 22-25.5% Cr and the balance Fe with inevitable impurities. The body is work-hardened by pressing with a roll or other method to provide >=40 Shore hardness to the surface of the body.