baber/WOPTO huggingface dataset:
Patent JP-S62227868-A (JP)
Title: Four wheel steering device for vehicle
Inventor: MIYOSHI AKIHIKO
IPC: B62D7/15
Filed: 1986-03-31
Abstract: PURPOSE:To restrain the behavior of a vehicle when the steering wheel is turned largely in particular during turning of the vehicle, in order to ensure the stability of the vehicle, by exerting a limitation to the speed of change in rear wheel steering ratio in accordance with the value of steering angle of front wheels. CONSTITUTION:In a four wheel steering device for a vehicle, in which the rear wheel steering ratio is variable, there are provided a steering angle detecting means 1 for detecting the steering angle of front wheels and a limiting means 2 for limiting the speed of change in rear wheel steering ratio. Further, there is provided a limiting value regulating means 3 receiving a signal from the steering angle detecting means 1, for setting a limiting value by the limiting means so that it is greater when the steering angle of the front wheels is large than when the steering angle is small. Further, a limitation is exerted to the speed of change in rear wheel steering ratio in accordance with the value of the front wheel steering angle in view of the fact that the drive condition is sensitive with respect to change in rear wheel steering ratio when the steering wheel is turned. Thereby it is possible to restrain the behavior of the vehicle from being changed in association with the change in rear wheel steering ratio.
Patent JP-S55164014-A (JP)
Title: Steel refining method
Inventor: HIRATA TAKEYUKI
IPC: C21C5/35
Filed: 1979-06-08
Abstract: PURPOSE:To reduce iron oxides within a molten slag by a method wherein, after blow refining by an oxygen top blown method is stopped, gas blowing under a bath level is carried out in a specified condition to reinforce a stirring force of a steel bath to promote dephosphorization. CONSTITUTION:A predetermined amount of oxygen is blown into an oxygen top blown rotary converter 1 from an oxygen lance 3 and, at the same time when oxygen is blown or after said oxygen blowing is completed, a gas such as carbon dioxide or the like is blown under a bath level within 5min or less in a flow amount 0.3Nm<3>/min or less per t of molten steel from a gas blow-in nozzle 2 provided to a furnace bottom. By this steel refining method, the equilibrium promotion between molten steel-molten slag and the cooling regulation during stopping high temp. blow refining can be controlled highly precisely and, moreover, the reducing effect of T, Fe is expected.
Patent JP-S55165246-A (JP)
Title: Automatic spring producing machine
Inventor: TAKAHATA YASUYUKI
IPC: B21F3/06
Filed: 1979-06-08
Abstract: PURPOSE: To improve the production efficiency of springs by supporting tools to the quadric links disposed with a quill in the central radial form and oscillating the same in cooperation with cams thereby advancing the tools to the required positions of the quill and performing coiling.  
     CONSTITUTION: The servomotor 9 of strand let-off rollers 4 and the servomotor 34 of a cam 29 are controlled by a numerical control unit with computer. As a result of this, if a cam shaft 28 is revolved by the servomotor 34, the 2nd crank lever 30 is turned at the respective cam action angles to release the defining of quadric links 14, 19, 15, 16 by way of a rod 32, the 1st crank lever 27 and rod 26. Then, the quadric links oscillates to the quill 13 side by the action of tension springs 23. This oscillation causes the tools 20 to continuously increase or decrease the distance up to the quill 13, thus the required operations of bending, coiling, cutting, etc. of the strand are accomplished by the required tools at the specified timings. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H02252695-A (JP)
Title: Crystal growth of compound semiconductor
Inventor: IMAIZUMI MITSURU
IPC: C30B29/42
Filed: 1989-03-24
Abstract: PURPOSE:To simplify temperature control of crystal growth and crystal growth control in growing single crystal of compound semiconductor on a Si substrate by growing crystal of compound semiconductor while raising temperature of the Si substrate to form a middle layer and successively growing crystal on the middle layer. CONSTITUTION:In a method of growing single crystal of compound semiconductor on a Si substrate, the following two processes A and B are adopted. (A) A middle layer forming process: crystal of compound semiconductor is growing while raising temperature of the Si substrate from a low-temperature first growth temperature to a high-temperature second growth temperature to form a middle layer to lighten unconformity between the compound semiconductor and Si: and (B) a main growth process which is successively carried out following the meddle layer forming process and grows the crystal of the compound semiconductor at the second growth temperature to successively form the compound semiconductor of single crystal on the middle layer. According to the above-mentioned method, control of heating temperature and control of change of raw material gas, etc., during crystal growth are simplified compared with an existing case of growing crystal at two stages.
Patent JP-S55165274-A (JP)
Title: Molten metal injection nozzle
Inventor: HATSUTA TOKUAKI
IPC: B22D41/50
Filed: 1979-06-09
Abstract: PURPOSE:To improve the stablility and continuity of pouring, casting work and process by providing the composite structure of which the inside surface side is of inorganic sintered body containing nitrogen and the outside surface side is spalling- resistant and erosion-resistant refractory material. CONSTITUTION:In the nozzle for ingot molding ladle, sliding nozzle, CC tundish nozzle, etc., both materials of the nitrogen compound sintered body such as sialon, Si3N4 and Si2ON2 as the inside surface side material of the nozzle and the refractory materials composed of combinations of one or two or more kinds of the groups consisting of alumina, zirconia, zirconium, molten quartz and graphite, for example, refractory materials of alumina-graphite base, alumina-zirconia graphite base, alumina-molten quartr-graphite base, zirconium-graphite base, zirconium-alumina base, alumina base, molten quartz-zirconium base, etc. as the outside surface side material are combined to constitute the nozzle.
Patent JP-S61232600-A (JP)
Inventor: TAKENAKA KENJI
IPC: H05B37/00
Filed: 1985-04-05
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-S61231077-A (JP)
Title: Heat-storing material and process for producing same
Inventor: NOBUTO YOSHIYASU
IPC: C09K5/00
Filed: 1985-04-05
Abstract: PURPOSE:To obtain a latent heat-storing material capable of being used in a predetermined temperature range and having CONSTITUTION:Anhydrous Na2CSO4 is incorporated with at least one compd. (e.g., LiCl or MgCl2) selected from the.
Patent JP-S56168514-A (JP)
Title: Electronic charging balance
Inventor: NISHIDA MANABU
IPC: G01G19/413
Filed: 1980-05-31
Abstract: PURPOSE:To improve the utility by altering unit price through ten-key inputting following designation of category and computing a price in the designated category based on the weight and the unit price altered. CONSTITUTION:As soon as a load is applied on a measuring base of a balancing section 30, a voltage signal is generated corresponding to the size of the load from a weight sensor 31 and inputted into a data processing section 34 by way of an amplifier 32, an A/D converter 33 and a data selector 37. CPU35 of the data processing section 34 controls a digit decoder 39 and a segment decoder 40 to have various indicators 6-9 to perform indications. Unit price is altered through ten-key inputting following the designation of category and a price is computed in the designated category based on the weight and the unit price altered.
Patent JP-H06257931-A (JP)
Title: Cooling device
Inventor: ONOUCHI SHINYA
IPC: F25D19/00
Filed: 1993-03-08
Abstract: PURPOSE:To perform a smooth cooling of each of compressors in a cooling device in which a plurality of freezing cycles are composed of a plurality of compressors and a condenser of each of freezing cycles is air-cooled with a common blower. CONSTITUTION:A plurality of compressors 17 and 18 are connected by pipes to construct each of a plurality of freezing cycles 46 and 47. The condenser 5 of each of the freezing cycles is air cooled with a common blower 44, and each of compressors 17 and 18 is cooled with cooling air got from the blower 44. Each of the compressors 17 and 18 has terminals 19 and 19, and refrigerant pipes 21, 22 projecting from the opposite side of each of the terminals 19 and 19 outwardly. Each of the terminals 19 and 19 is directed toward the blower 44 and mounted to be approached from each other.
Patent JP-H07192300-A (JP)
Title: Optical head
Inventor: YAMAZAKI TAKESHI
IPC: G11B7/126
Filed: 1994-04-12
Abstract: PURPOSE:To provide an optical head in which light from a semiconductor laser and light reflected and returned from an optical disk is exactly separated. CONSTITUTION:The optical head is provided with a semiconductor laser 1, collimator lens 2 for converting the light emitted from the semiconductor laser 1 into parallel light, and objective lens 6 for converging this parallel light onto an optical disk 8. A semiconductor substrate 4 for reflecting the parallel light is arranged on an optical path between the collimator lens 2 and the objective lens 4. At the semiconductor substrate 4, a photodetector is formed and on its surface, a polarizing film is formed for reflecting P-polarized light at a prescribed ratio (such as 80%, for example.) A 1/4 wavelength plate is arranged on an optical path between the semiconductor substrate 4 and the objective lens 6. A beam splitter 3 for guiding the returned light from the optical disk 8 to an information reproducing optical system is provided on an optical path between the colimator lens 2 and the semiconductor substrate 4.
Patent JP-S52156591-A (JP)
Title: Production of x-ray tube condensing electrode
Inventor: HAYASHI TADASHI
IPC: H01J35/14
Filed: 1976-06-23
Abstract: PURPOSE: To reduce the variation in the shape and dimensions of condensing electrodes and produce an X-ray tube of an accurate focus size by simultaneously forming and working the grooves of electron condensing electrodes and filament support mounting hole sizes. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S51149787-A (JP)
Title: X-ray mashine for dental surgery
Inventor: YAMANAKA TAICHI
IPC: H05G1/34
Filed: 1975-06-17
Abstract: PURPOSE: To prevent any excess current from being supplied to the X-ray tube. 
     COPYRIGHT: (C)1976,JPO&Japio
Patent JP-S60216836-A (JP)
Title: Fluidized bed reaction apparatus
Inventor: YAMAYA JIYOUJI
IPC: F23C10/00
Filed: 1984-04-12
Abstract: PURPOSE:To make combustion or reaction in a fluidized bed uniform in a main body and to prevent abnormal generation of NOX by providing a vibrating device for vibrating a bed material to a main body provided with an air feeding section for feeding air to the bed material and a reaction material feeding section. CONSTITUTION:A vibrating device 4 for vibrating a bed material 7 is provided to a main body 3 having an air feeding section 1 for feeding air to a bed material 7 suchas sand, and a feeding section 2 for a reaction material such as fuel. By this device, combustion or reaction in the fluidized bed can be made uniform in the main body, and abnormal generation of NOX or abnormal reaction can be prevented.
Patent JP-H08268564-A (JP)
Title: Bucket and chain replacing method of continuous unloader
Inventor: IDA TAKASHI
IPC: B65G17/38
Filed: 1995-03-30
Abstract: PURPOSE: To sharply shorten its replacing work time by collectively and continuously replacing buckets and a chain in a bucket elevator of a continuous unloader. CONSTITUTION: A new chain 12N on which buckets 9 corresponding to a revolving total length quantity of a bucket elevator 5 are preinstalled, is arranged in series on a quay 1 in the rail laying direction, and a chain 12 in the bucket elevator 5 is divided, and its one end part 12a is fixed to the quay 1, and the other end part 12b is connected to an opening end part 12Na of the new chain 12N, and a traveling frame is made to travel, and respective sprockets are rotated at equal peripheral velocity. Therefore, the new chain 12N is wound round respective sprocket groups in the bucket elevator 5, and when the installed chain 12 is delivered, the delivered chain 12 and the wound chain 12N are divided, and both ends of the new chain 12N wound in the bucket elevator 5 are connected to each other.
Patent JP-S552117-A (JP)
Title: Odd caisson for breakwater
Inventor: MOTO KOUJI
IPC: E02B3/06
Filed: 1978-06-20
Abstract: PURPOSE:To construct economically and easily a breakwater prominent in the wave pressure stability even under hard conditions by junctioning multi-staged cured slop ing walls to the body of an odd caisson. CONSTITUTION:Multi-staged, curved sloping walls 1, 2, 3 which constitutes a wave pressure receiving surface are junctioned to the body 4 of an odd caisson. These sloping walls 1 to 3 form an upper hollow portion A and a lower hollow portion B. The water entering these hollow portions A, B due to the wave effect is stored therein with a portion thereof sprayed upwardly. The inside of the caisson body 4 is full of water or sand and the offshore side of the hollow portions A, B is formed in a slit wall so that a high wave eliminating effect can obtained. Thus a breakwater prominent in the wave pressure stability even under large depth or high wave condition can be constructed economically and easily.
Patent JP-S6041085-A (JP)
Inventor: MIROSURABU ONDORISU
IPC: G09F9/30
Filed: 1984-04-12
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-S58190747-A (JP)
Title: Method for judging alloying degree of alloyed zinc plated steel plate
Inventor: NAKAMORI TOSHIO
IPC: G01N23/20
Filed: 1982-04-30
Abstract: PURPOSE:To judge alloying validity in high preciseness, by utilizing strong diffraction rays in the vicinity of grating constant d=2.17-2.12Angstrom . CONSTITUTION:I0, I1, I2 and I3 are the differences of max. intensities (in the case of I3, intensity) and background values at 2.21-2.195Angstrom , 2.17-2.15Angstrom , 2.145- 2.124Angstrom  and 2.124Angstrom  of grating constant (d) when characteristic X-rays are irradiated. An alloyed Zn plating steel plate as a sample subjected to X-ray diffraction to detect above-mentioned I0-I3 and the moldability of a plating film is asked by the situation of a substance adhered to a tape when a sticky tape is adhered to the aforementioned each sample and peeled therefrom while the relation beteen two factors of I2/I0-I1/I0 and I3/I2 is asked. When a situation almost free from the substance adhered to the tape is designated with a mark O, a situation slightly adhered therewith with a mark o, a situation adhered therewith in a relatively large amount with a mark   and a situation remarkably adhered therewith with a mark X, the straight line P shows the boundary of X and   and moldability is changed in almost parallel relation to the line P. From this fact, the infallibility wherein alloying validity is estimated based on the aforementioned two factors is shown.
Patent JP-S57154-A (JP)
Title: Fluorine-containing elastomer composition
Inventor: EBINA YOSHIAKI
IPC: C08K5/50
Filed: 1980-06-02
Abstract: PURPOSE: To provide the titled compsn. which has excellent vulcanization characteristics, storage stability and processing safety and can produce vulcanized materials having good physical properties, by blending a vulcanizing system composed of various specified compd. in combination.  
     CONSTITUTION: 100pts.wt. Fluorine-contg. elastomer (A) (e.g. a vinylidene  fluoride-hexafluoropropene copolymer), 1W40pts.wt. bivalent metal oxide or hydroxide (B) (acid-acceptor), 0.5W10pts.wt. arom. polyhydroxy compd. (C) (e.g. bisphenol A) (crosslinking agent), 0.1W10pts.wt. quaternary phosphonium compd. (D) (e.g. tetraphenylphosphonium chloride) (vulcanization accelerator), and not more than 0.1pst.wt. at least one member selected from 1,8-diazabicyclo [5,4,0,]- undec-7-ene, 1,5-diazabicyclo [4,3,0]-non-5-ene and 4-dialkylamino-pyridine having 1W4C alkyl groups, are blended together. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-S52156530-A (JP)
Title: Information position detection
Inventor: FUNATO HIROYOSHI
IPC: G06F17/30
Filed: 1976-06-23
Abstract: PURPOSE: Two points are recorded at every information position of recording medium and these are detected by two light detectors to be compared, thereby detecting information positions at high precision. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H10269007-A (JP)
Title: Writing tool type coordinate input device
Inventor: TAKAGI KUNIHIKO
IPC: G06F3/0488
Filed: 1997-03-26
Abstract: PROBLEM TO BE SOLVED: To provide a writing tool type coordinate input device improved in the accuracy of coordinate calculation, by correcting errors generated by the allowance of the sensitivity axis of an acceleration sensor and the initial value of rotation angle velocity integration, in the writing tool type coordinate input device for detecting and integrating acceleration and the rotation angular velocity and obtaining the coordinate of a tip. SOLUTION: This device is provided with a pressure detection means 3 for detecting pressure distribution applied to this writing tool type input device, a pressure computing means 4 for calculating a force vector by the detected pressure and a correction circuit 11 for performing correction so as to match the direction of an acceleration vector detected by the acceleration sensor with the direction of the force vector. Also, the pressure computing means 4 judges which surface of the writing tool type coordinate input device is held by the respective fingers of a writer based on the pressure detected in the pressure detection means 3 and calculates the rotation angle of the writing tool type coordinate input device as well.
Patent JP-H10226406-A (JP)
Title: Tire storage rack
Inventor: OKUYAMA TERUO
IPC: B65G1/14
Filed: 1997-02-18
Abstract: PROBLEM TO BE SOLVED: To provide a tire storage rack that facilitates the loading or unloading of tires thereinto or therefrom for its convenience and prevents degradation of tires stored therein to the utmost. SOLUTION: A tire storage rack 1 comprises a frame 2 made of L-shaped steel, and racks 4 each constituted of a pair of beam members 3 arranged inside the frame 2. The beam member 3 is constituted of a round bar-like core 10 adapted to be attached to a rack support member 7, and plural tubular members 11 fitted on the core 10. The tubular member 11 has inside diameters larger than the outside diameter of the core 10 so as to be held thereon rotatable.
Patent JP-S53441-A (JP)
Title: Cooled burner for liquid fuel
Inventor: ISHIBASHI YOUJI
IPC: F23D11/44
Filed: 1976-06-25
Abstract: PURPOSE: To stabilize the combustion and thereby reduce the generation amount of NOx by providing a flowing passage of a fluid to be heated in adjacent to a porous material having capillary function to supply combustion air at high temperature. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S531003-A (JP)
Title: Self-focusing system
Inventor: IZUMIDA MORIJI
IPC: G03B13/36
Filed: 1976-06-25
Abstract: PURPOSE: To eliminate lens focus shift by having the axis of a cylindrical lens placed about 45° in angle against the direction of the reproduction information track of the video disc. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S63242499-A (JP)
Title: Crank shaft controller
Inventor: MAEDA SHUJI
IPC: B30B15/14
Filed: 1987-03-30
Abstract: PURPOSE:To provide the titled controller for a crank shaft having big fail safe effect of preventing an accident by enabling to discover even small abnormality, made by equipping with a checking circuit checking the signal state of a relay circuit on each azimuth. CONSTITUTION:The controller of the shaft 5 controlling a member to be controlled of crank shaft 5 by using a relay circuit 31 is composed as the following. Namely, plural limit switches LS detecting the azimuth of said shaft 5 are provided. And, a checking circuit to check whether the state of the input signal of the circuit 31 is normal or not according to the azimuth, i.e., a fail safe checking part 39 connected to an angle arithmetic part 37 is provided. Now, in the case of causing an abnormal signal in one signal on the circuit 31, the state of signal abnormality is made to detect by a detection circuit. Consequently sure inspection can be effected by this crank shaft controller 3 and the shaft 5 can be controlled so that an accident may be prevented by finding future abnormality in advance.
Patent JP-H08242897-A (JP)
Title: Replication and amplification of gene
Inventor: IMAI HIDEKI
IPC: C12N15/09
Filed: 1995-03-07
Abstract: PURPOSE: To provide a method for the replication and amplification of a gene having unknown base sequence. CONSTITUTION: A DNA complementary to a double stranded DNA or RNA of a gene having unknown base sequence is dissociated into a single stranded DNA, a primer is partially bonded to an unspecified position of the single stranded DNA, a DNA segment complementary to the single stranded DNA is synthesized by a DNA polymerase using the bonded primer as the starting point of the DNA synthesis &nd the above procedures are repeated twice or more to replicate the unspecified part of the gene. The gene is amplified by a PCR method. The process enables the replication and amplification of a gene having unknown base sequence and is utilizable for the clarification of unknown pathogenic microorganism, the diagnosis of the infectious diseases caused by the microorganism and the development of a vaccine for the diseases.
Patent JP-S59199167-A (JP)
Title: Surface treatment of casting
Inventor: TAGUCHI CHIYOUBEE
IPC: C23C4/04
Filed: 1983-04-26
Abstract: PURPOSE:To suppress formation of rust by casting a steel or cast steel into a casting mold on which Ti, Ti alloy, stainless steel or Ni alloy is coated and forming an alloy layer on the skin of the casting. CONSTITUTION:A casting mold is coated thereon with a metal selected from Ti, Ti alloy, stainless steel or Ni alloy having excellent corrosion resistance. If a steel or cast iron is cast by using such casting mold, said metal or alloy is fused to the casting surface part and the alloy layer having excellent corrosion resistance is formed on the skin. The formation of rust is thus suppressed.
Patent JP-2000267047-A (JP)
Title: Polarized light conversion device as well as polarized light illumination device using the same and liquid crystal projector
Inventor: HAMADA TETSUYA
IPC: H04N5/74
Filed: 1999-03-19
Abstract: PROBLEM TO BE SOLVED: To obtain a polarized light conversion device which is small in size and light in weight and has good light utilization efficiency. SOLUTION: A polarized light conversion section consists of a central section 20G0 and its peripheral section. Since the polarized light conversion section 20G0 is arranged in the central part of the polarized light conversion device 20G, even if the parallelism of the polarized light conversion section 20G0 is degraded by the passage of light therethrough, the most of the light, can be made incident on a liquid crystal panel. The thickness DA of the polarized light conversion section 20G1 arranged in the side part of the polarized light conversion section 20G0 is smaller than the radius at the opening end of a parabolic mirror 12.