baber/WOPTO huggingface dataset:
Patent JP-H01199191-A (JP)
Title: Nuclear reactor
Inventor: FUKAZAWA YUKIHISA
IPC: G21C7/00
Filed: 1988-02-04
Abstract: PURPOSE:To enable a realization of a high burn up reactor, by using boron as a neutron absorbing material of control rods for a reactor shut down and hafnium as a neutron absorbing material of control rods for an output power regulation of a nuclear reactor. CONSTITUTION:Control rods 5B can be easily exchanged with new control rods because there are no upper grid plates 14. Therefore, the control rods 5B are used as control rods for output power regulation of a nuclear reactor, in which a neutron absorbing material is rapidly consumed. Hafnium is used as a neutron absorbing material of this control rods 5B and therewith a life extension of the control rods can be attained. On the other hand, it is pretty hard for control rods 5A to be taken out from a reactor core and to be exchanged with new ones due to the existence of grid plates 14 above them. Therefore, the control rods 5A are used as control rods which is used during a full life of the reactor. As a neutron absorbing material for the control rods 5A, a boron carbide (B4C) is used. With a usage of the B4C, a high burn up reactor with an enough reactor shut off margin can be realized.
Patent JP-S63191114-A (JP)
Title: Microscope for ophthalmologic operation
Inventor: TANAKA SHINYA
IPC: G02B21/06
Filed: 1987-02-03
Abstract: PURPOSE:To surely observe the rear pocket of an eye to be inspected by forming exit pupils on two areas in ring bands close to be respective effective light beams on the eye to be inspected sides in a pair of right and left stereoscopic observation optical systems in an illuminating optical system and positioning the two areas in the same direction about respective effective light beams in the stereoscopic observation optical systems. CONSTITUTION:Light beams radiated from a light source 6 are guided to an incident end 7a of an optical fiber bundle 7 by a reflector 5 and projected from a projection end 7b to an eye E to be inspected. The rear pocket image of the eye E illuminated by the optical fiber bundle 7 are guided to the stereoscopic observation optical systems Ma, Mb and observed by an inspector O. In the illuminating optical system for directly illuminating the eye E to be inspected by using the optical fiber bundle 7, the projecting end 7b of the fiber bundle 7 becomes an exit pupil in the illuminating optical system. Consequently, the area of portions fL, fR observed as red parts due to dispersed reflection from the eyegrounds are expanded to the whole peripheries in the pupils and the stereoscopic observation of the rear pocket of the eye E to be inspected occupying the same portion in the right and left eyes can be attained.
Patent JP-S59148281-A (JP)
Title: Electrolyte holding matrix of fuel cell
Inventor: MITSUTA KENROU
IPC: H01M8/02
Filed: 1983-02-14
Abstract: PURPOSE:To provide an electrolyte holding matrix of fuel cell which is chemically stable, and has good electric insulating property by using diamond powder as its main component. CONSTITUTION:An electrolyte holding matrix is prepared by using diamond powder as its main component and 1-10% of fluorin resin such as polytetrafluoroethylene as a binder to diamond powder. Diamond is chemically stable in hot, concentrated phosphoric acid compared with carbon or graphite which is used as an electrode substrate in a phosphoric acid type fuel cell. Diamond does not deteriorate after tens of thousands operation. After operation is finished, a matrix is dissolved in a suitable solvent and filtered to recover diamond. Recovered diamond is used again as a new matrix.
Patent JP-H06242134-A (JP)
Title: Engine tachometer
Inventor: KANRI HIDEFUMI
IPC: F02D35/00
Filed: 1993-02-12
Abstract: PURPOSE:To recognize a number of revolutions easily by finding an average time interval from the inputted number of revolution pulses, calculating the number of revolutions, and equalizing the engine revolutions even though they have the swell so as to reduce deflection of an indicating needle. CONSTITUTION:According to the existence (absence) of an idling condition in the previous time, four (two) average time intervals are calculated on the basis of the duration from four (two) times previous point to the point when a pulse is inputted to I/O 7-1 to the present time [1]. Therefore, pulse generation intervals are equalized even though the engine revolutions have the swell and the pulse generation intervals are varied. On the basis of these time intervals, the number of revolutions RN is calculated [2], and idling (NO) is determined when the number of revolutions RN is smaller (larger) than the fixed value R [3]. An average cumulative number of revolutions D. of past ten times is calculated [4]. An output control part, 5 outputs the number of revolutions RN-1 to an indicator 6 when the gap between the number of revolutions of this time RN and the number of revolutions of previous time RN-1 is less than the fixed value H. When the gap between the numbers of revolutions RN and RN-1 is more than the value II, the output control part, 5 outputs the number of revolutions RN if the engine does not idle, or it outputs the average number of revolutions found by calculating DN/10 [4] if the engine idles, so that the time intervals are equalized while deflection of an indicating needle of a meter 6 is eased.
Patent JP-S62181541-A (JP)
Title: Data transmission control circuit
Inventor: URAMOTO TORU
IPC: H04J3/04
Filed: 1986-02-06
Abstract: PURPOSE:To increase input channels only by connecting a control circuit additionally in parallel to a line driver by providing counters which operate with a common clock and a monitor circuit which detects whether or not there is output-side data and stopping the operation of the counters according to the detection result. CONSTITUTION:Counters 6 count common clock pulses and preset values P1, P2, P3...Pn corresponding to addresses A1-An of a data transmission control circuit 4 are given previously. The counters 6 when reset begin to count from the preset values as their initial values. The preset values are different, so the counters 6 differ in counting-up timing from one another. While a transmitting circuit 7 starts transmitting operation with the count-up signal of a counter 6, a gate control circuit 8 outputs a gate opening signal, the state of a tri-state buffer 9 is entered, and the transmission path of the transmitting circuit 7 is opened, thereby transmitting sent data. Consequently, the presence of data at an output pin 11 is detected by the monitor circuit 10, which outputs a stop signal to the counter 6.
Patent JP-S62181163-A (JP)
Title: Thermal printer
Inventor: KANEKO HIROMI
IPC: B41J2/375
Filed: 1986-02-06
Abstract: PURPOSE:To prevent a thermal head from being broken, by a construction wherein when the thermal head is mounted on a main body of a printer in an abnormal condition, the printer detects the abnormal condition, and interrupts the energization of the head. CONSTITUTION:A short-circuit part 6 for electrically short-circuiting both end terminals 2, 4 in a connector terminal row and a power source terminal 3 are provided on the side of a thermal head 1. A supply power source terminal 5 is provided on the side of a main body of a printer, and the terminal 2 is correspondingly brought into contact therewith. A short-circuit part 7 is provided for electrically short-circuit the terminals 3, 4 on the head side. For example, when the head 1 is inserted into the main body side deeply on the left side and slightly on the right side, the source power supplied from the main body side reaches the terminal 5, terminal 2, short-circuit part 6 and terminal 4, but the contact between the terminal 4 and the terminal 7 is unsatisfactory, so that an electric current is not passed, and the head 1 is not supplied with the source power.
Patent JP-2000219196-A (JP)
Title: Outboard engine
Inventor: FUKUOKA YOSHIHITO
IPC: B63H20/00
Filed: 1999-02-01
Abstract: PROBLEM TO BE SOLVED: To discharge the all amount of lubricating oil in an oil reservoir as far as possible by a suction pipe. SOLUTION: In this outboard engine, an oil reservoir 81 is arranged below an engine 13, and lubricating oil in the oil reservoir 81 is circulated and supplied to the engine. The outboard engine is provided with a rod-shaped oil gauge 147 for measuring the amount of lubricating oil in the oil reservoir 81, an insertion port 149 through which the oil gauge 147 is to be inserted, and an oil drain 81a for draining lubricating oil in the oil reservoir 81. The oil drain 81a is provided on the lower end on the right or left side of the oil reservoir 81, the insertion port 149 is provided on the upper part on right or left side of the oil reservoir 81, and the axis of the insertion port 149 extends toward the oil drain 81a.
Patent JP-S56121686-A (JP)
Title: Poison neutralization and reutilization of liquid absorbed hydrogen cyanide
Inventor: NISHIYAMA AKINOSUKE
IPC: C02F1/78
Filed: 1980-02-27
Abstract: PURPOSE: To make poisonous gases harmless and, at the same time, to prevent environmental pollution to the outside so that the operations are carried out safely, by treating poisonous HCN-containing gases in such way that the gases are absorbed in an alkaline solution, oxidized by ozone, treated by hydrolysis, etc.  
     CONSTITUTION: HCN-containing gas 1 used for exterminating noxious insects of vegetables and fruits is introduced into absorber tower 2, and the gas is ontacted with an alkaline solution such as NaOH, and the HCN is changed to NaCN. After the NaCN-containing liquid is introduced into ozone tank 8 and changed to NaCNO by oxidation with O 3 , the NaCNO is introduced into adjusting tank 30 where it is changed into NaHCO 3  by means of ozone oxidation and hydrolysis generated by heating. The NH 3  and O 3  generated during the course of this chemical change are removed by ozone absorber 16 and NH 3  absorber tower 17, and the poisonous CN is resolved and removed. Moreover, the NaHCO 3  is resolved into Na 2 CO 3 , CO 2  and H 2 O, Na 2 CO 3  is into NaOH and CaCO 3  after it is reacted with slaked lime in lime reacting tank 21, and the NaOH is recovered for the reutilization. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H07234445-A (JP)
Title: Camera
Inventor: OTSUKA YASUNOBU
IPC: G11B5/09
Filed: 1994-02-22
Abstract: PURPOSE:To provide a camera whose magnetic head can be miniaturized and which is provided with a recording means which can be easily controlled having a simple structure. CONSTITUTION:As for the camera using a film 12 provided with a magnetic recording layer, the camera is provided with a main head 1 installed on the pressure plate of a back cover so as to be opposite to the magnetic recording layer of the film 12, and also whose face opposite to the magnetic recording layer is constituted so that a magnetic part constituted of a magnetic body 7 and a spacer part 8 constituted of a diamagnetic substance or a diamagnetic substance may be alternately laminated while changing the thickness in accordance with a recording signal, and the camera is also provided with a sub head 2 with a wound coil 3 installed on the camera main body side so as to be opposite to the main head 1 with the film 12 interposed so as to impart a magnetic force to the main head 1, and the main head 1 is separated from the camera main body side by a back cover side magnetic connector, then, the main head 1 is moved with the back cover in accordance with the back cover opening/closing operation.
Patent JP-H07234851-A (JP)
Title: Neural network integrated circuit
Inventor: AIZAWA SHIGEKI
IPC: H01L27/10
Filed: 1994-02-22
Abstract: PURPOSE:To decrease the number of pins when the circuit is enclosed in a package and make crosstalk small by supplying a synapse load and a threshold control signal as light signals. CONSTITUTION:Synapse load multiplying circuits OWM and threshold circuits OTM to which the synapse load control signal Wij and threshold control signal thetai are inputted as the light signals, respectively are equipped with photoelectric conversion parts which convert the light signals into electric signals. In this case, N-input and N-output constitution (e.g. N=10) is employed and the NXN synapse load multiplying circuits OWM are arranged. Then, the synapse load control signals are inputted as the light signals from (i)th (i=1, 2...N) input ports to (j)th (j=1, 2...N) output ports. A reference voltage VT=VT1-VT2 is inputted to the threshold circuits OTM and threshold control signals thetaj are inputted as the light signals to the threshold circuits OTM related to (j)th outputs.
Patent JP-S57139866-A (JP)
Title: Accumulation system and retrieval system of picture
Inventor: SAKAI TOSHIYUKI
IPC: G06F17/30
Filed: 1981-02-20
Abstract: PURPOSE:To automatically generate and retrieve a necessary picture file, by utilizing the structure and meaning of a picture. CONSTITUTION:A picture is divided into a non-information area being a blank part and an information area, and the information area is divided into a graphic area and a character area. Also, the character area is divided into each meaning information, for instance, a full name, a belonging section, a title, a address, etc. In a structure extracting part 2, a character frame is cut by a circumscribed rectangle from the picture, the meaning information borne by the character frame is extracted by use of knowledge information related to its structure, and a binary picture in the character frame is stored in a primary information file 4. In a feature parameter generating part 3, as to each character pattern in the character-string, a mean black random digit is calculated as an eight-dimensional fearture parameter, and is stored in a secondary information file 5. When executing the retrievel, for instance, a key input such as a full name, a company name, etc. is executed, and its corresponding Chinese character pattern is generated.
Patent JP-S55120920-A (JP)
Title: Trimming of metal band
Inventor: FUJII KATSUHIKO
IPC: B23D19/08
Filed: 1979-03-05
Abstract: PURPOSE: To prevent occurrence of edge folding at trimming portions by a method wherein a metal band is trimmed while being so curved that the radius of curvature accords approximately to the radius of circular shear blades.  
     CONSTITUTION: A metal band 10 is guided by two rollers 8, 9 of which the vertical positions are slightly staggered. Circular shear blades 11a, 11b, 12a, and 12b arranged at both ends of the roller 9 are rotated by the feeding rotation of the roller 9, to separate the band 10 into a trimmed metal band 13 and shear wastes 14a, 14b. The lower blades 11b, 12b have the same outside diameter as the roller 9 and are arranged concentrically with the roller 9. Trimming is conducted under the condition where the radius of curvature of the band 10 accords to the radius of the blades 11a, 11b, 12a, and 12b, preventing occurrence of edge folding. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H04263584-A (JP)
Title: Recorder
Inventor: FUKUDA SHINICHI
IPC: H04N5/91
Filed: 1991-02-19
Abstract: PURPOSE:To record without generating the doubling of pictures when a still picture is changed at reproduction time. CONSTITUTION:A MUSE signal from a BS tuner 2 is digitalized to be supplied to RAM6A and 6B. The RAM 6A and 6B are alternately written by taking four fields of the MUSE signal as one unit of still picture data. Dummy data DD is inserted between still picture data of each screen to be read out alternately from the RAM 6A and 6B to be supplied to a DAT 50 so as to record. The time for inserting the dummy data DD is time (1/15 seconds) corresponding to the four fields of data in a video system rate. At reproduction time, the role of the two RAMs is changed when the writing of the still picture data in the RAM is completed and the reading from the other RAM goes to the end of one screen of the still picture data. The role of the RAM is not changed during the reading of one screen of the still picture data so that the doubling of two still pictures can be eliminated.
Patent JP-H03230757-A (JP)
Title: Self-excited switching regulator
Inventor: ITO SEIJI
IPC: H02M3/338
Filed: 1990-02-02
Abstract: PURPOSE:To improve efficiency and control characteristics by providing an element for current control between one end of the driving winding of a transformer and the base of a main transistor, and controlling said element for current control so that the current of said driving winding may be reversely proportional to output voltage. CONSTITUTION:Tr 33 for current control is connected between the base of a main transistor(Tr)4 and the top of a driving winding 11. To the Tr 33 is added a circuit comprising a resistance 34, a diode 35, and a resistance 36 for controlling it. When it becomes light load and output voltage becomes high, the resistance of a phototransistor 23 becomes small, and the base potential of the Tr 15 for bypass control becomes low, and the base current of the Tr 33 falls, and the collector current also falls. For this reason, the current flowing in the resistance 13 becomes small. Reversely, when output voltage falls due to heavy load, the resistance of Tr 23 becomes large, and the potential at the left end of the resistance 34 becomes high, and the collector current of the Tr 33 becomes large.
Patent JP-S56120956-A (JP)
Title: Detecting device for direction of rotation
Inventor: KISO MATAICHIROU
IPC: G01P13/04
Filed: 1980-02-28
Abstract: PURPOSE:To perform discrimination of the rotational direction simply and accurately by a method wherein the outputs of a pair of rotation detectors whose phases are varied in a preceding-backing manner in accordance with the rotational direction of a rotary body are inputted in FF circuits through waveform shaping devices, differentiators and rectifying circuits respectively. CONSTITUTION:The outputs of rotation detectors 2a and 2b arranged perpendicularly to the key groove of the rotational shaft 1 of a motor are inputted right- side FF6a and left-side FF6b through waveform shaping devices 3a, 3b, the differentiators 4a, 4b and the rectifying circuits 5a, 5b respectively. The outputs thereof are inputted in a shift circuit 7 to shift the zero level to the center of a rectangular wave and thereafter in a smoothing circuit 8. The smoothing circuit 8 delivers a positive signal when the pulse of the detector 2a precedes that of the detector 2b while delivering a negative signal when the relation is reverse, in accordance with the property of FF6. By monitoring those signals by a level-indicating device 9, the direction of rotation can be discriminated simply and accurately.
Patent JP-H10216151-A (JP)
Title: Clamp which can remove already fitted crown under recyclable shape
Inventor: WATANABE YUJI
IPC: A61C3/16
Filed: 1997-02-07
Abstract: PROBLEM TO BE SOLVED: To remove a crown in such a manner that it can be recycled in a short period of time by eliminating the time which is required for a re-treatment. SOLUTION: In a clamp wherein a pinching part 3 and a gripping part 2 are formed by axially supporting two members at an intermediate part, on one end of the pinching part 3 of the clamp, a slip preventive part 4 which comes into contact with a crown fitted on a tooth, is provided, and at the other end of the pinching part 3, a conical insertion part 5 on which a slide surface treatment is applied, in order to insert the small hole of large and small holes eccentrically provided on the crown, is provided, and the clamp can remove the already fitted crown under a recyclable shape. Then, a limiter 6 is provided on the gripping part 2 or the pinching part 3 so that the tips of the slip preventive part 4 and the insertion part 5 may not come into contact with each other, and the clamp can remove the already fitted crown under a recyclable state.
Patent JP-S62183316-A (JP)
Title: Manufacture of unified structural matter of base and foam skin material
Inventor: MAEKAWA MASAHIRO
IPC: B29C41/18
Filed: 1986-02-07
Abstract: PURPOSE:To enable a reduction in a sticking-in process of the skin material by eliminating residual stress of the skin material and to give soft feeling, by a method wherein a base is set on a mold surface of a slush mold under a heated state and then slush molding of foamable resin powder is applied to the upper part of the base. CONSTITUTION:A base 2 set on a mold surface of a slush molding tool 1 is heated up to a high temperature. Foamable vinyl chloride resin powder 3 is spread over the same by inverting (R direction) a tank body 4. In this instance, the foamable vinyl chloride resin is not cured completely. The base 2 to which foamed vinyl chloride resin is stuck is set on a bottom force 8. Then a top force 5 which is embossed or stitched 6 is lowered, the vinyl chloride resin is cured completely and forming of a skin layer is performed further. In this instance, as the skin material has been molded through slush molding by making use of the foamable vinyl chloride resin powder and a foamed layer is formed underneath the skin layer, through which soft feeling is given.
Patent JP-S56120788-A (JP)
Title: Aerosol antistatic agent
Inventor: MINEGISHI YUTAKA
IPC: D06M13/224
Filed: 1980-02-29
Abstract: PURPOSE:An aerosol antistatic agent, suitable for clothing or hair, having softening action without causing choking due to the irritation on the mucous membrane of a respiratory organ, and containing a cationic surfactant and a nonionic surfactant at a specific weight ratio. CONSTITUTION:A cationic surfactant and a nonionic surfactant are dissolved or dispersed in a 2-3C lower alcohol at a weight ratio of the cationic to the nonionic surfactants of 1:0.1-1:2, and the resultant solution of dispersion is contained in the aerosol contents to give the total content of the surfactants of preferably 0.01- 5wt%. Thus, the aimed aerosol antistatic agent is obtained. An ammonium salt expressed by the formula [one or two of R1, R2, R3 and R4 are 8-20C (hydroxy) alkyl, and the rest are 1-3C (hydroxy)alkyl, etc.; x is halogen, 1-2C alkylsulfuric acid, etc.] is preferred as the cationic surfactant, and a polyoxyethylene adduct is preferred as the nonionic surfactant.
Patent JP-S52108496-A (JP)
Title: Preparation of polyimide resins
Inventor: HOSOKAWA ETSUO
IPC: C09D5/25
Filed: 1976-03-09
Abstract: PURPOSE: To prepare polymide resins useful as insulating coatings consisting of water as a solvent, be reaction of a specific bistrimellitic acid upon a diamine in an organic solvent having alcoholic hydroxyl groups. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S62184608-A (JP)
Title: Rotary head type digital information signal recorder
Inventor: OKADA HIROSHI
IPC: G11B20/10
Filed: 1986-02-07
Abstract: PURPOSE:To record digital information signals different in number of quantizing bits and sampling frequency by generating a system synchronizing system and a master clock from a word clock synchronized with digital input signals, and supplying data of each 8 bits made by halving 16 bits of one word to two PCM processors. CONSTITUTION:Digital output of a digital tape recorder is supplied to PCM processors 18, 19 of an 8mm VTR as input data together with a word clock. Two sets of PCM processors are provided and data of 8 bits made by dividing 16 bits of input data are supplied respectively to PCM processors 18, 19. PCM processors are operated in parallel by a master clock synchronized with the word clock and two output data are formed, and the two output data are recorded in different recording area of a magnetic tape 3. As sampling frequency is different, servo is operated making a system synchronizing signal formed by frequency dividing word clock of input digital data by rotation of rotary heads 1A, 1B a reference signal.