baber/WOPTO huggingface dataset:
Patent JP-2001026567-A (JP)
Title: Purification of shikimic acid
Inventor: SASAKI SATOSHI
IPC: C07C51/50
Filed: 1999-07-01
Abstract: PROBLEM TO BE SOLVED: To purify shikimic acid in high yield and high purity by putting a solution containing shikimic acid under a basic condition to dehydrate dehydroshikimic acid as an impurity and isomerize the resultant product to protocatechuic acid, or the like. SOLUTION: Shikimic acid is purified by putting a solution containing shikimic acid under a basic condition preferably at >=pH 8, more preferably >=pH 10. The solution containing the shikimic acid is, for instance, an aqueous solution produced by a chemosynthesis or a synthesis from quinic acid, a cultured product or culture solution produced by fermentation, or the treated product thereof. The method for putting the solution under the basic condition comprises preferably using an aqueous metal hydroxide solution (e.g. an aqueous sodium hydroxide solution) to prepare the basic condition, more preferably contacting the solution with a basic anion exchange resin and adsorbing shikimic acid to the basic anion exchange resin followed by eluting the shikimic acid with a basic aqueous solution.
Patent JP-H0852976-A (JP)
Title: Writing instrument
Inventor: IKEDA YASUO
IPC: B43K5/18
Filed: 1994-08-09
Abstract: PURPOSE:To supply an ink in a stable condition to a paper-contacting section of a pen member to maintain a width of writing in a character or the like and the density of the ink at a constant level by a constitution wherein a tip portion of the pen member of which an ink passage is formed by stacking a plurality of sheet members is fitted into a housing groove provided to a pen core. CONSTITUTION:A main part of a writing instrument 10 is constituted of a neck cylinder 11, a pen core 12 and a pen member 13 and an ink tank 14 is detachably fitted to a rear end section 11a of the neck cylinder 11. In the pen member 13, a plurality of sheet members 13a, 13b are stuck with each other to form an ink passage 20 having a small gap in the whole length thereof. In the pen core 12, a housing groove 16 is formed in the whole length. A tip portion of the pen member 13 is fitted into the housing groove 16 by being projected in the front direction and the ink passage 20 of the pen member 13 is communicated to an inner section of the ink tank 14. Thereby, it is possible to supply the ink in the ink tank 14 to a paper-contacting section of the pen member 13 in a stable condition and to always maintain a width of writing in a written character or the like and the density of the ink at a constant level.
Patent JP-H06108-A (JP)
Title: Automatic opening umbrella
Inventor: FURUKAWA YASUAKI
IPC: A45B25/12
Filed: 1992-06-22
Abstract: PURPOSE:To eliminate a malfunction, to prevent a shock of a dew receiving body, and to beautify an external appearance by protruding a release claw simultaneously with retraction of a detaining claw, and moving back the dew receiving body against a spring along a cam of the release claw by a driven part. CONSTITUTION:In the course of pushing stroke of a spring 8, an operation for retracting a detaining claw 8a into metal rod 1, and an operation for protruding a release claw 8c from the metal rod 1 are executed simultaneously. Accordingly, it is safe because it does not occur that a dew receiving body 16 moves backward and releases a rib 2 by only a small push-motion of a push-button 9. While protruding the release claw 8c by the push-motion of the push-button 9, the dew receiving body 16 is moved backward against a spring 20 through a cam 22 and a driven part 23. When the dew receiving body 16 moves forward and backward, no shock is generated, it is not feared that the dew receiving body 16 and a housing 13 are damaged and it is fit for use extending over a long period. Also, the spring 20 is installed between the dew receiving body 16 and the housing 13, and the spring 20 can be constituted so as not to visible from the outside, therefore, the umbrella whose external appearance beauty is excellent can be provided.
Patent JP-S57112937-A (JP)
Title: Patterning method for nameplate
Inventor: KITOU MAMORU
IPC: B21D22/02
Filed: 1980-12-29
Abstract: PURPOSE: To express delicate patterns possessed by a material directly on the surface of the material of a nameplate in manufacturing a nameplate, etc. by placing the material for nameplate and the material for pattern between a punch and a die to press them.  
     CONSTITUTION: In manufacturing a nameplate, external part and case of a watch, decoration, etc. by striking, a plate 10 of soft metal such as annealed brass plate puts in layers with a blank 11 such as paper, cloth, leather that has intended letters and patterns is placed between the punch 9 and die 12. This is pressed by a friction press, etc. to form letters or pattern possessed by the blank 11 on the surface of the plate 10. A product that shows little warp after striking can be obtained easily by pressure about half that of conventional way. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-H0477056-A (JP)
Title: Picture communication control system
Inventor: FUKUOKA SHIGERU
IPC: H04L29/08
Filed: 1990-07-16
Abstract: PURPOSE:To attain picture communication with a high transmission efficiency by returning the result of communication to a sender side after an HDLC frame of picture information and control information for one communication is received. CONSTITUTION:Picture information and control information sent by a high speed transmission control circuit l are sent continuously with HDLC frame structure shown in figure (start flag F, address A, control C, information I, frame check sequence FCS and end flag F) and the HDLC frame from a satellite communication line is continuously received by a high speed reception control circuit 2. The received resulting information Ii is configured as the HDLC frame shown in figure 3 and it is sent by a low speed transmission control circuit 3 and received by a low speed reception control circuit 4. In the content of the resulting information Ii in the figure 3 for transmission and reception, a bit b<7> set to 0 indicates the reception result of control information and a bit b<7> set to 1 depicts the result of end of one communication. A bit b<0> set to 0 shows the normal state and a bit b<0> set to l depicts a fault state.
Patent JP-S6166176-A (JP)
Title: Sonar apparatus
Inventor: IWASAKI KIYOHIKO
IPC: G01S15/32
Filed: 1984-09-07
Abstract: PURPOSE:To obtain a high signal processing gain even for a receiving signal of a moving target by widening the whole band of a branching filter of a receiving signal than a frequency deviation width of wave-transmitting wave and further, by addition processing of each multi-frequency component detecting element in the specified band. CONSTITUTION:A supersonic-echo signal receiving signal is subjected to detection process by a detector 31 after flawless detection even for the signal receiving signal from a moving target by the Doppler effect by a distributor 21 the whole band of which is wider than a frequency deviation width of the signal transmitting sound wave. Further, a plurality of wave detecting components 301-324 in the specified band is pulse-compressed per each band width after processings by delaying apparatuses 401-417 adding apparatuses 501-507 and the targeted Doppler frequency is detected after selection of the adding apparatuses 501-517 issuing out the highest valued signal among the compression signals simultaneously issued. By an addition process of this wide-band branched wave and multiple wave-detecting component, a signal processing of a high gain can be available for a signal receiving signal of a moving target also.
Patent JP-S6345922-A (JP)
Title: Error correction method
Inventor: OSHIBA MITSUO
IPC: H03M13/00
Filed: 1986-08-12
Abstract: PURPOSE:To improve the correction capability to a burst error and to improve the efficiency of error correction by forming a 3rd arranging state comprising the plural 1st check words and the plural 2nd check words, recording the signal in the unit of sector, applying decoding again to the result of decoding in the unit of sector at the recovery and stopping the decoding based on the comparison of the number of the 1st code series disabled for correction. CONSTITUTION:A read data is received from a data input/output terminal 62 and stored in a RAM 70. Then the total number (n) of a C2 code series is written in a prescribed address 1 of a RAM 71 as N1 and zero is written respectively in prescribed addresses 2, 3 as a correction disable flag and N2. Then the C1 decoding is applied and if any error exists in the syndrome, error correction is applied and the result is transferred again to the RAM 70. Then the C2 decoding is applied. The C2 decoding is applied similarly as the C1 decoding and the result is outputted to a multiplexer 68 as a flag. The program selects again the flag from an operation circuit 69 as the output of the multiplexer 68 and in case of N2>=N1, the signal representing the correction disable is outputted to complete the decoding.
Patent JP-H1042550-A (JP)
Title: Control method for step-up/step-down chopper
Inventor: AOYANAGI YOSHIKI
IPC: H02J7/10
Filed: 1996-07-18
Abstract: PROBLEM TO BE SOLVED: To prevent the output voltage of a step-up/step-down chopper from being lowered below an allowable lower limit value, when the operation of the step-up/step-down chopper is switched from a step-down mode to a step-up mode, without increasing the capacitance of a smoothing capacitor and the rush current applied to the smoothing capacitor also. SOLUTION: If a DC voltage outputted by a step-up/step-down chopper 20 is stepped up not from zero but from a voltage higher than the allowable lower limit voltage of a 1st load 14, when a DC power supply 11 is interrupted and the operation of the step-up/step-down chopper 20 is switched from a step-down mode to a step-up mode, the output voltage of the step-up/step-down chopper 20 is not lowered to a voltage below the allowable lower limit voltage. Or a voltage command value which is given to an automatic voltage regulator 23 is started from a value higher, than the allowable lower limit value of the 1st load 14 to reach a required value at a predetermined voltage step-up speed. At that time, the proper step-up speed of the voltage command value is selected to protect a smoothing capacitor from excessive rush current.
Patent JP-S6082215-A (JP)
Title: Method for adjusting and controlling rolling reduction of rolling mill roll
Inventor: KITAMURA TAKASHI
IPC: B21B37/00
Filed: 1983-10-07
Abstract: PURPOSE:To obtain a large economical effect by constituting a liquid pressure cylinder in such a way that the pressure on the rod side thereof can be changed over to two kinds of pressures, i.e., high and low pressures by a pressure change valve. CONSTITUTION:A command position is fed to a servo position control device which performs ordinary position control. On the other hand, if a position command signal is in an advance mode, the solenoid A of a selector valve 10 is energized to put the rod side under low pressure P2L. Conversely when said signal is in a retreat mode, the solenoid B of the valve 10 is energized and the pressure on the rod side is controlled to attain high pressure P2H. The back pressure P2 which is not necessary in the stage of advance is set to the low pressure P2L according to the above-mentioned control method and therefore the differential pressure of the servo valve can be taken large with respect to the pressure P1 of a specified pressure line and the substantial cylinder response speed is obtd. with a servocontrol valve having small capacity.
Patent JP-S6081219-A (JP)
Title: Curable resin composition
Inventor: TAKIYAMA EIICHIROU
IPC: C08F290/00
Filed: 1983-10-11
Abstract: PURPOSE:A composition having extremely improved adhesivity, water resistance, chemical resistance and mechanical strength, and improved curing properties, obtained by blending a specific resin of side chain unsaturated bond type with a specified oligo(meth)acrylate. CONSTITUTION:(A) A resin of side chain unsaturated bond type having a main chain made of a polymer obtained by polymerization of vinyl monomer, and a side chain having acryloyl group or methacryloyl group with putting a urethane bond between them, is blended with (B) an oligo(meth)acrylate having at least one acryloyl group or methacryloyl group in one molecule. Preferably a vinyl ester resin and a urethane-acrylate are used together as the component B. 5- 95wt%, preferably 20-80wt% component A is blended with 95-5wt%, preferably 20-80wt% component B. Preferably the blend is further mixed with a polymerizable monomer.
Patent JP-H04327219-A (JP)
Title: Production of carbon fiber
Inventor: KAKAZU TAKANORI
IPC: D01F9/145
Filed: 1991-04-24
Abstract: PURPOSE:To provide a process for the production of an optically isotropic pitch-based carbon fiber capable of shortening the infusibilization step of pitch fiber and giving a carbon fiber having excellent mechanical properties. CONSTITUTION:A pitch fiber produced by the melt-spinning of an optically isotropic pitch is infusibilized, carbonized and optionally graphitized. In the above process, the infusibilization is performed in two stages. The first stage infusibilization is carried out in an ozone-containing air atmosphere and the second stage is carried out in air free of ozone.
Patent JP-S6080167-A (JP)
Title: Controller of digital disk player
Inventor: ISHIWATARI HIROHARU
IPC: G11B27/10
Filed: 1983-10-07
Abstract: PURPOSE:To simplify the system constitution with elimination of misoperation and to attain installation of a disk player into a small space, by using just a single controller to perform the program search and reproduction of plural players as well as a display for the program search and reproduction. CONSTITUTION:When a start button 72 is pushed after confirmation of glowing of one or more of pilot lamps 74-81, the program search is automatically carried out for a player corresponding to the 1st music with a stand-by mode. In an automatic play mode, a switch 73 is set at the AUTO side. Then a play button 21 or a monitor button 23 is pushed to set the player in a reproduction mode. When the play is ended with the 1st music, the program search is carried out automatically for the 2nd music. When all programs are ended with continuation of said actions, the player is stopped. While a display circuit 86 displays the lamps 74-83 for programs. Thus this method is especially suited to such a case where two CD players are reproduced alternately.
Patent JP-S5977140-A (JP)
Title: Thrust releaser
Inventor: HIKARI KAZUO
IPC: F16F7/00
Filed: 1982-10-25
Abstract: PURPOSE:To stop a sliding motion of a push shaft member upon occurrence of stronger resistance than predetermined force, by providing a safety device constituted of balls put into a groove made on the periphery of the push shaft member, the balls being held in place by springs adjusted so as to exert predetermined force to the balls. CONSTITUTION:An advancing and retreating arm 1 is constructed of a shaft member 3 slidably fitted into a cylinder body 2 at the inner end portion thereof. The shaft member 3 is provided with a groove on its periphery, against which balls 6 are pressed by springs 5 energized with compressive force. A threaded shaft 15 provided at the outer end of the cylinder body 2 is coupled with an advancing and retreating apparatus, e.g. a cylinder, and a threaded shaft 16 at the outer end of the shaft member 3 is coupled with a push plate. The arm 1 is slidingly advanced and retreated by the reciprocating motion of the advancing and retreating apparatus. When the arm 1 is slid, if it undergoes stronger resistance than predetermined force, the balls are pushed out of the grooves 4, the ring 8 is pushed back resisting the compressive force of the springs 5, and the balls 6 are put in between the rings 7 and 8, and as a result, the shaft member 3 is disengaged from the cylinder 2 to be set free, and the sliding motion is thus stopped immediately.
Patent JP-H0475696-A (JP)
Title: Air conditioner
Inventor: NAGATA YOICHI
IPC: F24F1/00
Filed: 1990-07-17
Abstract: PURPOSE:To efficiently execute the local air conditioning by providing an air conditioning means for executing cooling and heating of air, and an unsealed bag for accumulating temporarily air exhausted from a heat insulating tube for leading cooled or heated air exhausted from the air conditioning means. CONSTITUTION:An air conditioning means 11 is a regular air conditioner, exhausts air of a temperature set by a user, and to an air blowout part, a heat-insulated and freely bendable tube 12 is coupled, and air exhausted from the air conditioning means 11 passes through the inside of the tube 12. To the tube 12, a bag 13 of the same shape as usual bedclothes is coupled, and it is sewn by using cloth having gas diffusibility. In such a state, air which comes out of the tube 12 and goes into the bag 13 is exhausted to the outside through the cloth. In such a way, by accumulating cooled or heated air by the air conditioning means in the bag, and using its bag as bedclothes, air conditioning of the necessary minimum is enough and it becomes greatly profitable for saving energy.
Patent JP-2000022667-A (JP)
Title: Optical amplification device and optical communication system
Inventor: KATO TOMOYUKI
IPC: H04J14/00
Filed: 1998-07-03
Abstract: PROBLEM TO BE SOLVED: To provide an optical amplification device capable of improving the S/N characteristics of main signal components and reducing the scale of an optical transmitter. SOLUTION: This device is provided with an optical amplifier 20 for amplifying optical signals S42 inputted through an optical fiber cable 4 by an amplification factor indicated by an amplification factor control signal S52, an optical spectrum analyzer 51 for detecting the optical intensity of the optical signals branched from the amplified optical signals S45 while changing a detection wavelength and holding the peak value of the detected light intensity and an amplification factor decision device 52 for deciding the amplification factor so as to make the held peak value be more than a reference value and generating the amplification factor control signal S52 for indicating the decided amplification factor.
Patent JP-S5891085-A (JP)
Inventor: TANIZAWA YOSHIHIRO
IPC: B32B15/04
Filed: 1981-11-27
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-H0536684-A (JP)
Title: Manufacture of semiconductor device
Inventor: AOKI HIDEMITSU
IPC: H01L21/306
Filed: 1991-07-30
Abstract: PURPOSE:To prevent the occurrence of disconnection in wiring and improve the accuracy of upper-layer wiring at the time of forming the wiring on a base insulating film having a level difference on a semiconductor substrate by treating with concentrated nitric acid a sidewall film which is the oxide of a wiring film adhering to an organic film after etching. CONSTITUTION:After an aluminum film 2 is formed on a base insulating film 1 having a level difference, a polyimide film 3 is formed and flattened. After flattening the film 3, an SOG film 4 and photoresist film 5 are formed on the film 3. Then the SOG and polyimide films 4 and 3 are successively etched by respectively using the photoresist and SOG films 5 and 4 as masks. At the time of etching, a sidewall film 6 composed mainly of aluminum is stuck to and formed on the side face of the polyimide film 3 on the upper section of the level difference. Then aluminum wiring 2A is formed by etching the aluminum film 2 by using the polyimide film 3 as a mask. After forming the wiring 2A, the film 3 is removed by isotropic etching using oxygen plasma. Since the sidewall film 6 cannot be removed by the isotropic etching, the film 6 is removed with concentrated nitric acid.
Patent JP-H11124022-A (JP)
Title: Braking force control device of vehicle
Inventor: WATABE YOSHITOMO
IPC: B60T8/48
Filed: 1998-07-03
Abstract: PROBLEM TO BE SOLVED: To reflect the braking demands of a driver on braking power of wheels that are not controlled by automatic brake control. SOLUTION: This control device allows yaw moment in the drift out control direction of the vehicle (S 90) by applying braking force to the revolving inside rear wheels during drift out control as automatic brake control, and cuts off the wheel cylinder of the revolving outer rear wheels that are not controlled from both the master cylinder and the brake booster via a control valve. During drift out control, the pressure within the accumulator controls as the source of fluid pressure the brake pressure of the revolving outer rear wheels according to the change in master cylinder pressure Pm. This results in an increase or decrease in control of the braking force of the revolving outer rear wheels according to the pressure applied to the brake pedal (S 50-80).
Patent JP-S6432509-A (JP)
Title: Gain control circuit
Inventor: ISHII HIDEKAZU
IPC: H03G3/10
Filed: 1987-07-28
Abstract: PURPOSE:To increase the maximum ATT quantity and to prevent the distortion due to a change in a signal current by connecting anodes of two diodes to gain control current input terminals respectively and connecting a current source terminal having been connected so far to ground to an output of a load. CONSTITUTION:1st and 2nd diodes 8, 10 whose anode is connected respectively to 1st and 2nd gain control current input terminals (a), (b) and whose cathodes are connected in common, 1st and 2nd NPN transistors (TRs) 9, 11 whose base is connected respectively to the terminals (a), (b) and a signal current source 13 connecting to the common emitter, are provided, and the current from the signal current source 13 is divided and flows from the collectors of the TRs 9, 11 in response to the current ratio of 1st, 2nd TRs 1', 3' and the current is extracted to 1st and 2nd loads 14, 15. Thus, the maximum ATT quantity is used largely and independent of the capacity of the signal current source and the current amplification factor of the TRs.
Patent JP-H0239416-A (JP)
Title: Solid electrolytic capacitor
Inventor: NAKAI KYOICHI
IPC: H01G9/04
Filed: 1988-07-28
Abstract: PURPOSE:To extremely reduce the capacity and the size by forming a capacitor part on the surface, on which a dielectric oxidation coating layer can be formed or having a substance capable of forming a dielectric oxidation coating layer, of a metallic bar. CONSTITUTION:An insulating band layer 2 is formed by applying a resin material on the specific part of the surface of an aluminum bar 1 to divide the surface thereof into two parts and an aluminum oxide layer 3 as a dielectric oxidation coating layer and a conductive pyrrole polymer layer as a polymer layer of a heterocyclic compound, i.e., a polypyrrole layer 4 are formed on one of the parts. A graphite layer 5 and a silver paste layer 6 for taking out an electrode are formed in this order to form a capacitor part C, which is inserted into a metallic electrode comprising a metallic bar 8 connected to one of the side faces of a metallic cylinder 7, and the metallic cylinder 7 is filled up with silver paste to form a solid electrolytic capacitor.
Patent JP-S5980184-A (JP)
Title: Speed control system for induction motor
Inventor: KUSUMOTO SATOSHI
IPC: H02P25/26
Filed: 1982-10-29
Abstract: PURPOSE:To prevent circuit parts from being damaged in case of recovering a power interruption by providing means for detecting the power interruption and the recovery. CONSTITUTION:When a power source is recovered after a power interruption, a recovery signal is outputted from a voltage comparator 21, analog switches 11, 15, 17 are respectively recovered by the recovery signal after the prescribed period set by a timer 20, and a chopper ON/OFF pulse amplifier 19 releases the output inhibit of the ON/OFF pulse. However, since the input of an acceleration/ deceleration calculator 12 maintains the value in response to the rotating speed of a motor at the recovery time, the input deviation of a speed regulator 16 becomes zero. Accordingly, the overcurrent flowed to a transistor chopper 7 can be prevented at the recovery time.