baber/WOPTO huggingface dataset:
Patent JP-S5619528-A (JP)
Title: Optical recording and reproducing unit
Inventor: YOSHIDA TOMIO
IPC: G11B7/00
Filed: 1979-07-25
Abstract: PURPOSE: To prevent the track formed newly on the disc from being crossed or laminated on the track formed with recording in advance, by automatical control the recording light source and the driving unit for the light source according to the signal reproduced from the disc.  
     CONSTITUTION: The light L from the semiconductor laser 101 of the recording and reproduction optical unit 10 is focussed into a fine diameter, radiated on the optical recording disc 11, recorded and reproduced, and the light power of the light source is set for the power at signal reproduction and signal recording, the power at reproduction is irradiated in advance to the signal recording section of the disc 11, the reflection light of disc is detected at the photodetector 105 to detect the presence of the envelope of the reproducing signal, and if the reproduced light is in crossing with the track pre recorded or is abnormally close to it, the envelope signal is output according to the part, and control is made at the semiconductor laser driving circuit 20 based on the envelope signal. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H08288581-A (JP)
Title: Method and apparatus for regulating output of light emitting element
Inventor: OKADA TOMOYUKI
IPC: H01L33/00
Filed: 1995-04-20
Abstract: PURPOSE: To regulate the output of a light emitting element accurately regardless of fluctuation in the quantity of monitor output light. CONSTITUTION: The quantity of output light from a light emission element, i.e., a laser, is monitored by means of a power meter 6 and the drive signal or drive current for laser is controlled by subjecting a trimming resistor 8 to laser trimming thus regulating the quantity of monitor output light to a target value. More specifically, a correction value is determined as the regulation progresses by predicting the fluctuation in the quantity of monitor output light based on the quantity of monitor output light of laser and the regulation time thus controlling the quantity of monitor output light of laser to the correction value.
Patent JP-H02274065-A (JP)
Title: Image read element
Inventor: KUBOTA HIROMI
IPC: H04N1/19
Filed: 1989-04-17
Abstract: PURPOSE:To improve the resolution in the sub-scanning direction and to improve the read picture quality by forming a shape of each photodetecting area to a rectangular shape in which length in the sub-scanning direction is shorten than that in the main scanning direction. CONSTITUTION:The figure shows a shape of each photodetecting area of an image read element. The shape of each photodetecting area B is rectangular shape with its length in the sub-scanning direction shorter than that in the main scanning direction, and in this case, length in the sub-scanning direction is a/2 of 1/2 against length (a) in the main scanning direction. In such a way, length in the sub-scanning direction of the photodetecting area is 1/2 against length in the main scanning direction. Therefore, a read range of the photodetecting area become a/2+d being shorter than the conventional one of almost the same length, and the resolution in the sub-scanning direction is improved.
Patent JP-H10290181-A (JP)
Title: Surface acoustic wave device and communication equipment using the same
Inventor: YUHARA AKITSUNA
IPC: H04B1/707
Filed: 1997-04-14
Abstract: PROBLEM TO BE SOLVED: To enable interference resistant performance and acceleration and to attain miniaturization and price-down by providing plural transmission/reception electrodes at a central electrode element and on both the sides, specifying time intervals among these electrode elements and successively arranging the excitation strength of electrode elements based on a specified number determined from the binary encoding coefficient of the spreading code and the number of respective electrode elements arranged at an encoding electrode. SOLUTION: The time interval between electrode elements is defined as one-chip time Tc , for which time T for one symbol of the code to be handled is divided by a number N (natural number) of chips, and the numbers of electrodes to be set on both the sides are respectively set to (N-1) or the multiple of (N-1). Besides, the excitation strength of electrode elements is successively arranged according to the arrangement di' of the formula determined by binary encoding coefficients an (=±1, n=1, 2...N) of the spreading code and polarity arrangement bn (=aN+1-n =±1, n=1, 2...N) of respective electrode elements at the encoding electrode.  N-1 pieces of transmission/reception electrodes 3 are respectively arranged at the time interval of Tca and the excitation strength is weighted while including the polarity so that dealing with high-speed information, miniaturization and price-down can be performed.
Patent JP-H03292044-A (JP)
Title: Information processing unit
Inventor: YAMAGUCHI TAKASHI
IPC: H04M11/00
Filed: 1990-04-10
Abstract: PURPOSE:To carry and use the unit freely without limit by connection of a public line by adopting wireless communication by FM modulation for data transmission reception between a personal computer and a line control section of a telephone set of a personal computer with a communication function. CONSTITUTION:A personal computer consists of a personal computer 1 having an FM transmission reception function, a telephone set placing base 2 having the FM transmission reception function and a telephone set 3. When a call signal comes from a public line, the telephone set 3 rings and a call signal detection circuit is simultaneously operated, a detection signal is FM-modulated by a high frequency circuit unit and outputted from an antenna. Thus, the unit is used without being limit due to the personal computer 1 connecting to the public line.
Patent JP-H06291676-A (JP)
Title: Encoding device
Inventor: SHIMIZU TETSUYA
IPC: H04N19/134
Filed: 1993-03-30
Abstract: PURPOSE:To prevent deterioration in picture quality caused depending upon quantization characteristics of a selected quantizer as much as possible. CONSTITUTION:This device is equipped with a large block grouping means 1, a small block means 2, an orthogonal transforming means 3, a classifying means 5, a data quantity estimating means 6, a quantizing means 7, and a variable length encoding means 8. Control is so performed as to approximate the amount of information after the encoding of a large block to a certain value and the selection systems of classified quantizers selected for respective large blocks are switched according to the quantization characteristics of the selected quantizers. When quantization steps are relatively rough, the quantization steps are made gradually rougher from a part where sensitivity of visual characteristics is low and when the quantization steps are relatively fine, on the other hand, the quantization steps are made gradually finer from a part where the sensitivity of visual characteristics is high to suppress the deterioration in picture quality when the quantization steps are rough.
Patent JP-S61254239-A (JP)
Title: Dispersion stabilizer for coal-water slurry
Inventor: TERADA KAZUTOSHI
IPC: C09K23/52
Filed: 1985-05-06
Abstract: PURPOSE:To enhance flowablity and stability at coal concn. of 70wt% or more, by preparing a dispersion stabilizer for a coal-water slurry by compounding a block compolymer represented by a specific general formula as an effective component. CONSTITUTION:A block copolymer represented by formula I [wherein P<1> is a hydrophobic polymer, P<2> is a structural unit selected from groups represented by formulae II, III (wherein R<1> is H or an 1-6C hydrocarbon group and R<2> is H or an 1-10C hydrocarbon group and the content of the formula II is 50-100mol% and the polymerization degree of a polymer is 10-3,500 and n is 1 or 2] is used as a dispersion stabilizer for a coal-water slurry. The addition amount of this dispersion stabilizer to a coal-water slurry varies according to the kind or particle size of coal but usually 0.01-5.0, pref. 0.05-2.0% by wt. of coal in the slurry.
Patent JP-2000280285-A (JP)
Title: Molded article with window part and its preparation
Inventor: YAMAZAKI TETSUYA
IPC: B29C45/14
Filed: 1999-04-02
Abstract: PROBLEM TO BE SOLVED: To prepare a molded article which has no inferiority of appearance such as defects and deformation and wherein a window part and the main body of the molded article are bonded by enough bonding strength without requiring a special installation, by an existing installation, by a convenient process and inexpensively. SOLUTION: A method for preparing a molded article with a window part comprises the steps of using a mold for injection molding consisting of a top mold 5a and a bottom mold 5b wherein recessed parts are formed in corresponding to the inner peripheral part of a window member, pinching only the outer peripheral part 3 of the window member 1 between the top mold 5a and the bottom mold 5b, holding the inner peripheral part of the window member in such a way that it is not brought into contact with the top mold 5a and the bottom mold 5b and filling a molten resin into a mold for injection molding.
Patent JP-H02273080-A (JP)
Title: Inverter power supply
Inventor: YOSHIDA SHOJIRO
IPC: H02M7/5387
Filed: 1989-04-14
Abstract: PURPOSE:To avoid the simultaneously ON of both transistors by inserting a resistor in series with the base of each output transistor and by providing a capacitor in parallel with a resistor inserted into the base of one side transistor. CONSTITUTION:Output transistors on the earth side out of those 8, 9, 18, 19 in drive circuits 2, 3 are respectively made into NPN type transistor 8 and PNP type transistor 19. Then, the resistors 10, 11, 20, 21 are respectively inserted in series with the base of said transistors 8, 9, 18, 19, and capacitors 12, 22 are provided in parallel, e.g. with the resistors 10, 21 of said output transistors 8, 19 on the earth side. Therefore, one capacitor 8 functions as a speed-up capacitor, and the timing for the transistor 8 of said capacitor to reverse from OFF to ON is quickened as compared with that for the transistor 19 to reverse from ON to OFF. Thus, it is possible to prevent the simultaneously ON of said transistors 8, 19.
Patent JP-H08252560-A (JP)
Title: Heat melt mixing method and heat melt solidifying device for waste synthetic resins
Inventor: TAKEI YOSHIO
IPC: B09B3/00
Filed: 1995-03-17
Abstract: PURPOSE: To prevent the generation of harmful gaseous chlorine by specifying the compounding ratio and heating temp. range of polyvinyl chloride(PVC) resin and inorg. particles in a method for finely segmenting these resins, compounding inorg. particles therewith, melting and intimately mixing the mixture and press molding the mixture to form solids. CONSTITUTION: The particles 4 of river sand or inorg. matter having a grain size of 0 to 3mm are compounded at 10 to 20 pts.wt. with 100 pts.wt. fine pieces formed by coarse grinding of the PVC resins 1. Inorg. granule scraping curvilinear plates 6 inclining at 2 to 3 deg. forward are mounted at the front ends of the plural arms arranged at a revolving shaft 10 penetrating the central parts of both side surface plates of a horizontally held cylindrical body made of a steel sheet. The outer part on the lower side of the cylindrical body is provided with a heating chamber 9 contg. an electric heater. The inorg. particles 4 in the compds. scattered and integrated on the lower side part of the cylindrical body are heated to 160 to 190 deg.C to melt, intimately mix and move the compds.  After these compds. are discharged from a discharge port 11 in the rear part of the cylindrical body, the compds. are immediately press molded by a cylinder 15 for press molding, by which the solids are formed.
Patent JP-H07285557-A (JP)
Title: Gift case
Inventor: TAKAHASHI TERUYOSHI
IPC: B65D25/10
Filed: 1994-04-08
Abstract: PURPOSE:To automatically exhibit a document regarding a housed product in connection with opening of a case and also position the product. CONSTITUTION:An upper plate 2 and a lower plate 3 are connected via hinge lines (a) on both sides lengthwise a narrow back plate 1 while an intermediate plate 4 is connected to the upper plate 2 by fixing it with a liner plate via the hinge line (a) on an inner face of the back plate 1. In addition documents 5 are attached respectively to the inner face of the upper plate 2 and a connected face of the intermediate plate 4 connected to the above inner face by positioning pieces 6, while an inner case 7 like a rectangular dish having a positioning part 7a for a housed product is fixed to the inner face of the upper plate 3 so that an elastically pressing material 9 provided on the intermediate plate 4 is brought into elastic contact with the product 8 positioned inside.
Patent JP-S58212621-A (JP)
Title: Magnetic recording medium
Inventor: NARUSE SHIYOU
IPC: C09D127/04
Filed: 1982-06-04
Abstract: PURPOSE:To obtain a magnetic recording medium having high durability and causing little bleeding of a lubricant, by forming a magnetic layer contg. a magnetic material, a binder and a diamido compound on a support. CONSTITUTION:A magnetic layer contg. a diamido compound represented by the formula (where each of R and R' is 12-18C alkyl) as a lubricant as well as a conventional magnetic material and a binder is formed on a support. The diamido compound is m-xylenediaminebisstearoamide, m-xylenediaminebispalmitoylamide or the like. The proper amount of the bisamido compound to be used is about 0.5-5wt% of the amount of the magnetic material. The durability of the magnetic layer is improved only when the compound is used by said amount.
Patent JP-S63260599-A (JP)
Inventor: TAKEDA KIYOTAKA
IPC: D06F58/28
Filed: 1987-04-17
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-H08269578-A (JP)
Title: Method for preventing heat buckle of metallic strip
Inventor: HIROTA YOSHIAKI
IPC: C21D9/56
Filed: 1995-03-30
Abstract: PURPOSE: To prevent the occurrence of a heat buckle at the time a metallic strip heated to a high temp. travels while winding around rolls. CONSTITUTION: Auxiliary rolls 3 are arranged keeping a gap of >=0.1mm between the metallic strip 1 on the outer side of the metallic strop 1 winding round the rolls 2 from a position where the metallic strip 1 begins to wind around the rolls to a position where the winding ends. As the result, the occurrence of the heat buckle at hearth rolls, etc., is prevented at the time of subjecting the metallic strip to a continuous heat treatment. As the result, not only the product quality is improved but the damage of the rolls occurring in the heat buckle is prevented as well.
Patent JP-H08271832-A (JP)
Title: Micro-optical device
Inventor: UERUNAA SHIYUPEETO
IPC: G02B27/14
Filed: 1996-03-27
Abstract: PROBLEM TO BE SOLVED: To provide a micro optical device easily adjustable and obtaining conversion efficiency between 90 and 100%. SOLUTION: A micro optical device converts a first laser beam flux, composed of a large number of individual beams of strip cross section radiated in an x-direction of an orthogonal coordinate system 5 from one or more laser diode bars or a plurality of individual laser diode chips, into a second laser beam flux 17. A beam parallelizing optical system 11 parallelizes the individual laser beams of strip cross section, divergent in a z-direction of the coordinate system 5, of the laser beam flux, and in succession, a deflecting mirror device converts a laser beam flux 31, formed of parallelized individual laser beams 12 of strip shape, into the second laser beam flux 17.
Patent JP-H0755273-A (JP)
Title: Refrigeration system and refrigerator
Inventor: JIEEMUSU DEI
IPC: F25B41/00
Filed: 1994-05-10
Abstract: PURPOSE: To lower cost of a system by improving the refrigerating efficiency of the system. CONSTITUTION: This refrigeration system has a highly efficient free-draining evaporator 108. A refrigerant compressed by a compressor and condensed by a condenser flows to the evaporator via expansion means such as capillary tube. The evaporator 108 includes a conduit having an inlet 107 positioned higher than an outlet 109. The conduit is free from obstructions and portions which can inhibit free gravitational drainage of a liquid phase refrigerant flowing from the evaporator 108 into a phase separator 110 located below the evaporator.
Patent JP-S5523764-A (JP)
Title: Separately-excited dc-dc converter
Inventor: ADACHI HIROO
IPC: H02M3/337
Filed: 1978-08-07
Abstract: PURPOSE: To stabilize the output of a DC-DC converter despite the fluctuation in a load, by providing the converter with a feedback circuit.  
     CONSTITUTION: When the level of the load is zero or small, a transistor Q5 is turned off and the large primary current of the DC-DC converter is suppressed by a resistor R1. When the level of the load is high, the primary current flows through  the resistor R1 and a DC voltage +Vcc falls. At that time, the transistor Q5 is  turned on because the potential on the voltage division point of a voltage divider  circuit falls depending on the decrease in the DC voltage +Vcc. As a result, the  primary current increases depending on the fall in the voltage. The DC voltages + Dcc, -Dcc are thus maintained at prescribed levels despite the fluctuation in the  load. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H07299047-A (JP)
Title: Method for applying gradient magnetic field in mri device, and mri device
Inventor: KOSUGI SUSUMU
IPC: A61B5/055
Filed: 1994-05-10
Abstract: PURPOSE:To prevent the deterioration of image quality or error resulted from the disturbance of the leading and trailing of a gradient magnetic field waveform. CONSTITUTION:As the waveforms of gradient magnetic fields GS1, GS1 in slice axis and a gradient magnetic field Gr in reading axis, a waveform having a leading A of 1/4 sine waveform, a flat part, and a trailing B of 1/4 sine waveform is used. The change in leading or trailing of the gradient magnetic fields is smoothed, no high load is added to the source of a gradient magnetic field driving circuit, and the disturbance of the waveform is eliminated. Thus, the deterioration of image quality or error resulted from the leading or trailing of the gradient magnetic filed waveform can be prevented.
Patent JP-S59220574-A (JP)
Inventor: KASHIWAGI KAZUHITO
IPC: G06F1/26
Filed: 1983-05-31
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-S5219626-A (JP)
Title: Process for preparation of condensates containing phosphorus
Inventor: UMETANI KOUHEI
IPC: C08K5/00
Filed: 1975-08-06
Abstract: PURPOSE: Condensates containing phosphorus are prepared by the condensation of tetrakis (hydroxymethyl) phosphonium compound or tris (hydroxymethyl) phosphine with dicyan diamide by dehydration and de-roemaldehyde on heating under reduced pressure. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S55129880-A (JP)
Title: Automatic counter for rod steel
Inventor: MORITA SHICHIROU
IPC: G06M7/02
Filed: 1979-07-30
Abstract: PURPOSE: To reduce count mistake and to perform perfect automation, by providing the cam turned with rod steels carried and counting and classifying the rod steels through the detection of the operation of this cam with proximity switch or photoelectric tube.  
     CONSTITUTION: The two stabilizer plates 4s having unevenness and located at the both ends of the single carrying plate 3s are coaxially fitted, the rod steel is carried one by one by driving this, the count cam 5 is placed at the position of the tooth groove of the inlet of the carrier plate 3s, and this unit is located between the chain conveyors 21, 22. The advancement of the tooth of the cam 5 is sensed with the proximity switch 20 or photoelectric tube via the roll and striker to send signal to the automatic counter. Further, the classification and count of rod steel 1 are automatically made to avoid count mistake and keep sure operation and durability. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S5723169-A (JP)
Title: Specified data output system
Inventor: UESUGI YOSHINORI
IPC: G07G1/00
Filed: 1980-07-16
Abstract: PURPOSE: To check readout contents conveniently by storing a section code when a specific key is operated and by reading data between section codes when the stored data is read out.  
     CONSTITUTION: An input part 1 is provided with a section key 1a for discriminating between data having been inputted and data to be inputted. The input part 1 is being supplied with a timing signal KP from an I/O port 2 and on keying operation, the timing signal KP is selected and inputted as a key input signal KI to an input buffer IB. In the I/O port 2, a display buffer HB and a print buffer PB are equipped in addition to an input buffer IB; and the display buffer HB is connected to a display part 3, and the print buffer PB to a print part 4. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-H01267047-A (JP)
Title: Inkjet head
Inventor: KITAHARA TSUYOSHI
IPC: B41J2/14
Filed: 1988-04-19
Abstract: PURPOSE:To stabilize the discharging property of ink drops and to enhance the manufacturing yield, by so arranging that a movable part of a center beam vibrator held by a predetermined space from a nozzle plate is vibrated in a direction orthogonal to said nozzle plate to press out ink in the vicinity of said nozzle plate and to let it fly as ink drops. CONSTITUTION:When a voltage is applied between a common electrode using a spacer 22 and a pattern electrode 26, a piezoelectric element 24 is contracted. On the other hand, since a layer 23 of Ni foil has a high modulus of elasticity, the change of size thereof is restricted. Therefore, such bending moment is consequently generated as to bend the element 24 to the side of the Ni foil 23. As a result, a piezoelectric converter 40 is deformed and shifted towards a nozzle plate and, the ink in the vicinity of the nozzle plate is discharged out of a nozzle opening 20. Therefore, it becomes possible to manage a small gap between the nozzle plate 21 and the piezoelectric converter 40 with high accuracy. The gap influences the characteristic of the inkjet head, and accordingly highly accurate size control of the gap brings about stabilization of the discharging property of ink drops of the inkjet head, while exerting great influence upon the manufacturing yield of the head. It is desirable that the gap is not larger than 100mum and not smaller than 5mum.
Patent JP-H07300929-A (JP)
Title: Watertightening device for split mullion type curtain wall
Inventor: TAKEMURA MASAMI
IPC: E04B2/96
Filed: 1994-05-10
Abstract: PURPOSE:To provide a split mullion type curtain wall which has a good workability and also an excellent watertightness. CONSTITUTION:Joint packings 40 are arranged in the upper and lower connecting parts of split mullion 2, and draining grooves 15 communicated with these packings 40 are formed inside the split mullion 2. Further, draining grooves 54 communicated with the draining grooves 15 are formed in transoms 3, 4, and draining holes 57 communicated with the outdoors are formed in the draining grooves 54. The leakage water from the right and left connecting parts of the split mullion 2 is collected into the joint packings 40, and is discharged for each of the transoms 3, 4 from the draining holes 57 through the draining grooves 15, 54, so that the draining route can be shortened, and watertightness can be enhanced, and also because of dry seal, workability can be enhanced.