baber/WOPTO huggingface dataset:
Patent JP-S63211277-A (JP)
Title: Separation and purification of biphenyltetracarboxylic acid dianhydride
Inventor: AIZAWA TERUKI
IPC: C07D307/89
Filed: 1987-02-27
Abstract: PURPOSE:To separate and purify an isomer mixture of biphenyltetracarboxylic acid dianhydride and separate into each isomer readily and in high purity, by using a specific compound having no problems of irritation to human body, ignition and explosion properties and metallic corrosion of device as a solvent. CONSTITUTION:An alkoxy-substituted aromatic compound such as preferably anisole or ethoxybenzene is used as a solvent, an isomer mixture of 2,3,3',4'- biphenyltetracarboxylic acid dianhydride useful as a raw material for polyimide resin and 3,4,3',4'-biphenyltetracarboxylic acid dianhydride is separated and purified, 3,4,3',4'-isomer is crystallized and precipitated by solubility difference and then the filtrate is concentrated to precipitate 2,3,3',4'-isomer crystal. The crystal can be further purified by washing or recrystallization from the above- mentioned solvent. This method shows effects of not requiring extreme improvement in operation and of not specifying device material.
Patent JP-S59171066-A (JP)
Title: Magnetic recording and reproducing device
Inventor: TAKAHASHI SHIYOUKICHI
IPC: G11B25/06
Filed: 1983-03-18
Abstract: PURPOSE:To drop exactly a cassette holder by a prescribed timing by turning a turning arm by an inserted cassette, turning a hook arm by its idle end, and detaching an engagement to a link arm. CONSTITUTION:As for turning arms 50L, 50R, an X link system is adopted, and a hook arm 62 is provided on a turning shaft of the arm 50L, its engaging piece 64 is engaged to a link arm 13L for moving upward and downward a holder 5L, and the other engaging piece 57 is engaged to a link arm 13R. When a cassette 6 is inserted, the turning arms 50L, 50R are pushed, a pressing projection 58 of the arm 50R pushes the arm 62, the engagement of the arm 62 and the arm 13L is detached, the arm 13L is turned by a spring, and the holders 5L, 5R drop. As a result, the hook arm 62 is turned by a movement of the idle end of the turning arm, therefore, even if there is a variation in dimensions or accuracy, the holder can be dropped exactly by a prescribed timing.
Patent JP-S57161816-A (JP)
Title: Optical connector
Inventor: MASUKO TAKAYUKI
IPC: G02B6/38
Filed: 1981-03-31
Abstract: PURPOSE:To reduce connection loss as compared with an error in an end-surface gap, by making the connection end surface of an optical fiber into a plane end surface slanting at a desired angle to an optical axis, and forming a wedge- shaped gap between both end surface. CONSTITUTION:A couple of optical fibers 3 and 3' to be connected are held and fixed on the same axial line by collars 5 and 5', a sleeve 7 having screws 7a and 7a' at external circumferences of both end parts, and hollow nuts 9 and 9' having internal screws 9a and 9a'. Further, the circumferential relative positions of the butt end surfaces 5a and 5a' of the collars 5 and 5' are held constant to the sleeve 7 with positioning keys 11 and 11. The opposite end surfaces 3a and 3a' of the optical fibers 3 and 3' are made into plane end surfaces having a prescribed angle phi to optical axes together with the end surfaces 5a and 5a' of the collars, and a wedge-shaped gap is provided between the opposite end surfaces. Consequently, interference fringes are formed on the fiber end surfaces and the width of variation in the quantity of transmitted light with the end surface gap is reduced.
Patent JP-S57162545-A (JP)
Title: Data transmitting system
Inventor: MATSUDA TAKASHI
IPC: H04J3/06
Filed: 1981-03-31
Abstract: PURPOSE:To realize a change of speed of transmission, by turning on and transmitting the control signal at the transmitting side when the signal in the data region is significant and fetching the signal in the data region after regarding it significant when the control signal is turned on at the receiving side. CONSTITUTION:At a transmitting station A, the series transmitting data DS is supplied to an SP converter 3 by the timing pulse (a) and then converted into a parallel data signal (b) to be supplied to a multiplexing part 5. At the part 5, the data information signal D1 including the signal (b) and the control signal (c) is multiplexed along with another signal D2 and a sound signal S1, etc. to be transmitted in the form of a transmitting frame signal (d). At the receiving side, the signal (d) is supplied to a clock extracting circuit 6, a receiving timing circuit 7 and an SP converter 8 respectively. On the other hand, the control signal in the transmission channel of the signal (d) is extracted at an AND gate 10 and by the latch timing signal (e) given from a circuit 7 to be applied a speed converting circuit 9 in the form of the latch timing signal (h). The signal (h) is set at a high level only when the control signal is on, and an output (f) of the converter 8 is fed into the circuit 9.
Patent JP-H03248066-A (JP)
Title: Digital frequency measuring apparatus
Inventor: HINO HITOSHI
IPC: G01R23/02
Filed: 1990-02-26
Abstract: PURPOSE:To obtain frequency data of pulse modulation RF signals larger than the level of continuous RF signals even when the continuous RF signal is inputted by generating a latch timing only when the level of an input signal is increased. CONSTITUTION:While a pulse modulation RF signal is not present, an I/Q video of a continuous RF signal is outputted from an I/Q phase discriminator 3c. On the contrary, when the pulse modulation RF signal is present, an I/Q video of the pulse modulation signal is outputted from the discriminator 3c. The I/Q video is quantized by zero cross slicers 3d, 3e and inputted to a latch circuit 3f. After the RF signal is converted to a video signal by a wave detector 5, one is inputted to a plus terminal of a comparator 6, while the other is inputted to a delay line 7. The video signal input to the delay line 7 is delayed, and then a predetermined level is added to the signal by an adder 8, which is inputted to a minus terminal of the comparator 6. Therefore, only when the level of the input signal is increased, a Q video is outputted from the comparator 6 to be a latch timing for an I/Q video quantizing signal.
Patent JP-S57162561-A (JP)
Title: Digital demodulator
Inventor: FURUYA NOBUO
IPC: H04L27/156
Filed: 1981-03-31
Abstract: PURPOSE:To obtain a miniature demodulator which is capable of detection even for a carrier wave, by sampling the FSK signal with an equal time interval, converting the sampled FSK signal into a digital value and demodulating the digital value through a calculating process. CONSTITUTION:The calculating process is divided into 4 time slots. In the 1st time slot, a digital filter 33 functions as a BPF and pushes out the signal of frequency fl of a low frequency of the FSK signal to deliver the sample value A1. In the 2nd time slot, a signal of high frequency fh is extracted through the filter 33 to deliver the sample value B1. In the 3rd time slot, the difference¦A1¦-¦B1¦is calculated by an adder/substractor 28 between the sample  value and the absolute value and delivered in the form of an output of demodulation after the low band filtering carried out through the filter 33. In the  4th time slot, a calculation is carried out for ¦A1¦+¦B1¦-L' through an  adder/subtractor 35, a register 36 and an adder/subtractor 38 respectively to  deliver a carrier wave detection signal after the low band filtering carried out  through the filter 33.
Patent JP-H07254388-A (JP)
Title: Sputter ion pump
Inventor: OKUBO KAZUO
IPC: H01J41/12
Filed: 1994-03-17
Abstract: PURPOSE:To provide a sputter ion pump easily built up from the low-vacuum region and capable of being miniaturized and integrated with an electron gun by exhausting the glow discharge region and orbitron pump operating region. CONSTITUTION:A relatively high potential is applied to a Ti deposition face 12 from a Ti target 11 to cause a glow discharge in an exhausted chamber having the gas pressure in the region of several Pa. The target 11 is sputtered with generated gas ions to form a clean Ti surface on the surface of the target 11, the clean Ti film is formed on a deposition face 12, and the chamber is exhausted via the getter action between the target 11 and the deposition film 12. When the gas pressure is in the region lower than 10<-1> Pa, a low potential is applied to the target 11 and deposition face 12, a high potential is applied to a Ti filament 13, and the electrons from a electron emitting source 15 are orbited to ionize gas. Gas ions are adsorbed on the deposition face 12 of the target 11 for exhaust.
Patent JP-S56143461-A (JP)
Title: Electrophotographic copier
Inventor: SAITOU FUSAMITSU
IPC: G03G15/04
Filed: 1980-04-09
Abstract: PURPOSE:To prevent the occurrence of an overheated state and to reduce power  consumption by focusing the radiation light of a barlike light source to line on an original for scanning by using a reflection mirror opposing to said original. CONSTITUTION:A platelike plane surface reflection mirror 13 is provided in the advancing path of transmitted light of a cylindrical lens 12 inclinedly so as to direct obliquely upward with respect to the center line l1, so that the light transmitted through the cylindrical lens 12 is reflected by the mirror 13 and is focused at the focus P1 folded back and formed on the surface position of the original 5 of an original supporting glass 1 or near the same. In this way, the linear scanning light is formed on the original 5, and unnecessary overheating of the original supporting glass and the members around the same does not occur. Since light condensation efficiency could have been enhanced, the power consumption of the light source is correspondingly reduced.
Patent JP-H10236414-A (JP)
Title: Automatic packaging method and its device
Inventor: SAKURA YASUHIRO
IPC: B65B11/54
Filed: 1997-02-28
Abstract: PROBLEM TO BE SOLVED: To obtain an automatic packaging device which reduces packaging defects and rust even in a high humidity condition. SOLUTION: Both breadthwise side edges of an extensible film sent out from a film supply part in a packaging part 12 are held by a pair of approachable and separable side grippers 62 to stretch the film breadthwise and further, fold it in the outside face of the bottom of a tray 17 (to be packaged) containing an article from both breadthwise sides and both longitudinal sides to package the tray 17. This automatic packaging device 1 is provided with a dehumidifier 4 generating dehumidifying air and sending it and opened parts (passages) 7, 8 leading the dehumidifying air blown out of the dehumidifier 4 to the packaging part 12. In this way, even in a high humidity condition and in much temperature difference, the environment in the packaging part 12 is kept in a dehumidifying atmosphere to package the tray without dewdrops on the film and a gripper rubber 65 or the like.
Patent JP-H09216130-A (JP)
Title: Working fluid supplying device to machining tank in immersion type wire electric discharge machine
Inventor: SHIGA TAKEO
IPC: B23H7/36
Filed: 1996-02-09
Abstract: PROBLEM TO BE SOLVED: To prevent accumulation of machining chips and adhesion of foam to a workpiece by keeping working fluid in a machining tank at an appropriate fluid surface and applying flow motion to the working fluid in a working fluid supplying device to a machining tank in an immersion type wire electric discharge machine. SOLUTION: To a machining tank 2, working fluid 10 is supplied through working fluid supply tubes 58, 59, and a controller 50 controls flow rate regulation valves 46, 47 and a discharge open/close valve 41 so as to control a flow rate of the working fluid 10. Inside the machining tank 2, fluid surface sensors 51, 52 are arranged, and the height of a fluid surface 36 from an electric discharge machining upper face 60 in a workpiece 11 is kept in a fixed allowable range by means of a command from the controller 50, while control is carried out so as to provide circulating movement flow to the working fluid 10.
Patent JP-H05250891-A (JP)
Title: Shift register circuit
Inventor: NIIMURA TETSUYA
IPC: G11C19/00
Filed: 1992-03-04
Abstract: PURPOSE:To unnecessitate an element for compensating delay and to make do with one piece of a clock wiring in a shift register preventing the malfunction of the poststage of a shift register circuit due to the delay of a clock caused by a wiring delay. CONSTITUTION:Respective delay flip-flops are constituted of the latch 1 and the latch 2 of FF-1 and the latch 4 and the latch 5 of FF-2 respectively. The latch 3 and the latch 6 are added to the poststage of the latch 2 of FF-1 and the latch 5 of FF-2 and the data of a terminal E is operated after timing (c) when the clock raises. Thus, interval from timing (b) to timing (c) becomes a hold time and sufficient margin is obtained and the malfunction of the poststage of the shift register circuit is prevented.
Patent JP-S62203056-A (JP)
Title: Oxygen concentration detector
Inventor: OKADA YASUSHI
IPC: G01N27/409
Filed: 1986-03-03
Abstract: PURPOSE:To enhance air/fuel ratio control accuracy by obtaining oxygen concn. detection output having a good linearity over a range from a lean region to a rich region, by changing over the gain of the variable amplifier of a pump current according to the flow direction of the pump current. CONSTITUTION:At the time of the air/fuel ratio of a lean region, the voltage Vs generated between the electrodes 7a, 7b of a battery element 9 is lower than the reference voltage Vr or a voltage source 12 and the output of an error amplifier 11 comes to a positive level to be applied to the electrode 6a of an oxygen pump element 8 and a pump current flows to the element 8 from the electrode 6a toward an electrode 6b to pump out oxygen in a gas stagnation chamber 2. At the time of the air/fuel ratio of a rich region, the voltage Vs exceeds voltage Vr and the output of the amplifier 11 comes to a negative level to reverse the pump current direction between the electrodes 6a, 6b and oxygen is sucked in the chamber 2. As mentioned above, by supplying the pump current so as to make oxygen in the chamber 2 constant, the pump current value and the output of the amplifier 11 can be made proportional to the concn. of oxygen in exhaust gas in a range from the lean region to the rich region.
Patent JP-S55139893-A (JP)
Title: Soil-permeation type cleaning method and its apparatus
Inventor: UCHIDA TATSUYA
IPC: E03F1/00
Filed: 1979-04-16
Abstract: PURPOSE: To clean polluted water constantly without blocking the permeation of the polluted water in cleaning the polluted water by soil-permeation process, by laying a film having capillary action adhered to a porous net horizontally in the soil, then by dropping the polluted water from the film downward.  
     CONSTITUTION: Water-collecting film or groove 7 is buried by digging soil 1 which is used to treat polluted water, and a device for uniformly scattering polluted water is buried horizontally above the groove 7 and 20W40cm under the earth's surface. Said device is made by laying horizontally a porous net 3 made of synthetic resin of a large void ratio, and void diameter not larger than 2mm in slide frames 6 made of polyvinyl chloride resin, and the ends of the porous net are fixed to the slide frame 6. Then foamed sythetic fiber cloth or synthetic resin sheet 2 having capillary action is placed on the net 3 and in the frame. Above these net and sheet, a polluted water scattering pipe 5 having many holes is arranged, and above the pipe a porous net 4 is placed which covers the frame 6. Polluted water is scattered through the holes of the scattering pipe 5, suspended solid being caught by the cpillary sheet 2, then the polluted water falls from the under surface of the capillary sheet 2 onto the porous net 3, and permeates from the under surface of the net 3 uniformly into the soil 1, finally it is collected in the groove 7 as cleaned water. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H03248749-A (JP)
Title: Method for preventing transverse crack in cast strip in twin roll type strip casting
Inventor: KOKITA MASAHIKO
IPC: B22D11/06
Filed: 1990-02-26
Abstract: PURPOSE:To obtain a cast strip having good inner and surface qualities by casting a cast strip, which completes solidification at neighborhood of the nearest part between twin rolls, under the specific rolling reduction ratio to the thickness direction. CONSTITUTION:Pouring basin 3 for receiving molten metal from a tundish is formed with horizontal rolls 1, 1 and side dams 2, 2 arranged at both ends thereof. Then, the solidification of cast strip is completed at neighborhood of the nearest part between twin rolls 1, 1. This cast strip 4 is cast under the rolling reduction ratio of <=50% to the thickness direction thereof. By this method, transverse crack developed on the surface of cast strip can be prevented.
Patent JP-H09243236-A (JP)
Title: Show case
Inventor: FUKAZAWA FUMIO
IPC: F25D25/02
Filed: 1996-03-05
Abstract: PROBLEM TO BE SOLVED: To prevent an insertion part of a final end member from being exposed outside of a display member. SOLUTION: Once insertion parts 4b, 4c of an end cover 4 are inserted into a final end of a price rail 3, an end cover 4 is held by the insertion parts 4b, 4c, and a protrusion 4d of the insertion part 4c is engaged with a hole 3f in the price rail 3, and hence the end cover 4 is restricted in its movement in the reverse direction of the insertion. In this case, the other insertion part 4c of the end cover 4 is inserted into between a support part 3b and a front end of a commodity shelf 2 so that the insertion part 4c is prevented from being exposed to the outside.
Patent JP-H01221829-A (JP)
Title: Diaphragm type keyboard switch
Inventor: INABA MASAKAZU
IPC: H01H13/76
Filed: 1988-02-29
Abstract: PURPOSE:To prevent the occurrence of malfunction, erroneous input, switch damage or dew condensation, and improve reliability by keeping the required gap on the upper part of the operation panel of n diaphragm type keyboard switch and providing a transparent flexible insulation sheet therein. CONSTITUTION:Transparent flexible insulation sheets 1 and 5 are arranged on the upper part of a diaphragm type keyboard switch via a transparent spacer means 3 in order to keep the required gap. Also, the transparent flexible insulation sheet faced to the gap is fitted with a transparent conductive film 7 for heat generation. The gap, therefore, works as an insulation region and forms a cushion layer against heat applied from the upper surface of the keyboard switch. According to the aforesaid construction, the heat resistance of the keyboard switch proper is enhanced. Also, in an operation environment at a low temperature, dew condensation and the like are pertinently prevented via the effect of heat generation by the conductive film 7 and high reliability can be ensured.
Patent JP-H04265986-A (JP)
Title: Method and device for exposing photosensitive material for hologram
Inventor: FUKUI TAKUOMI
IPC: G03H1/04
Filed: 1991-02-21
Abstract: PURPOSE:To finish the exposure of a photosensitive material for a hologram in a short time. CONSTITUTION:A ray R2 for object light scans a photosensitive material 7 for a hologram through an acousto-optical element 11 and a vibrating scanner 13. Desired letters or a desired figure is drawn on the photosensitive material 7 by opening and closing a shutter 14 set just behind the element 11. The photosensitive material 7 is exposed by irradiation with a ray R1 for reference light diffused by an optical system 6 for light diffusion.
Patent JP-S61209977-A (JP)
Inventor: NAKABASHI MASAKO
IPC: C04B41/88
Filed: 1985-03-12
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-S62204309-A (JP)
Title: Method for controlling output current of controller
Inventor: KUMANO MASAKAZU
IPC: G05B19/18
Filed: 1986-03-04
Abstract: PURPOSE:To improve reliability with easy control and a small number of control parts for the titled control method, by detecting side of a current output circuit to input the correction indicating information to a microcomputer according to said error and correcting the output signal received from the microcomputer. CONSTITUTION:The prescribed signal voltage is inputted to a microcomputer 1 and the current flowing to a solenoid 6 is measured by an ammeter 27. Thus an error between the measured current and the set current is detected and the jumper lines 29a-29e are cut off according to the level of said detected error. The percentage of the correction value can be controlled fast and accurately against the current value measured by the ammeter 27 by producing previously a comparison table between the current value ensuring previously a comparison table between the current value ensuring the best conditions and its corrected value by calculation. Thus no fluctuation is produced after control unlike the conventional volume control and therefore the reliability is improved. Furthermore the control of the output current is simplified since no replacement is needed for resistances, etc.
Patent JP-H02297145-A (JP)
Title: Document editing processing system in structured document processing system
Inventor: TAKANARITA TAIJI
IPC: G06F17/21
Filed: 1989-02-28
Abstract: PURPOSE:To deal respective documents in such a way that they are stored in one document file by permitting a structured document processing system to judge in which document files the document contents corresponding to respective nodes are stored based on the content of the structured document. CONSTITUTION:A structured document file 11 where the contents of the document files 2 generated by respective document processing software 3-1 to 3-7 are unified by the structured documents corresponding to hierarchy structure in respective documents is provided. The document files 2 which are respectively different and continuous can be edited for respective documents by using the contents of the structured document. Thus, the target document can be generated by using document processing software, and the document files which respectively differ can be edited by using the contents of respective documents.
Patent JP-H04336799-A (JP)
Title: Manufacture of ultrasonic converter
Inventor: RUUDORUFU TOURUN
IPC: B06B1/06
Filed: 1992-02-03
Abstract: PURPOSE: To simplify and improve the manufacture by aligning a transducer element in an elastomer and mounting the element, while being aligned by an outer surrounding line and connecting the element to a matching layer. CONSTITUTION: In the manufacture of an ultrasonic wave transducer, having a piezoelectric transducer element 1 connecting to an acoustic matching layer 3 made of a vibration elastomer, as a only single body, the single body made of an elastomer is manufactured at first as a mold frame member 2 having an outer surrounding line 4, the transducer element 1 is mounted while being aligned with the outer surrounding line 4 in the elastomer 2 in the succeeding processing processes and connected to the matching layer 3. In this case, it is preferable to adhere the transducer element 1 to the matching layer 3. Thus, it is possible to test characteristics of the matching layer 3, with respect to physically important parameters such as density, sound velocity and uniformity. In the case that a negative test result is produced, the mold frame member 2 has only to be removed. Thus, the manufacture is simplified.
Patent JP-H09216965-A (JP)
Title: Vinyl chloride resin composition for expansion molding
Inventor: TANAKA YOJI
IPC: C08J9/06
Filed: 1996-02-09
Abstract: PROBLEM TO BE SOLVED: To provide a vinyl chloride resin composition having good processability and giving expansion-moldings having excellent heat distortion resistance and a good state of expanded cells and surface properties. SOLUTION: This composition comprises 100 pts.wt., in total, resin comprising 20-60 pts.wt. vinyl chloride resin and 80-40 pts.wt. chlorinated vinyl chloride having a chlorine content of 60-70wt.%, 0.5-30 pts.wt. polymethyl methacrylate processing aid, and organic and inorganic blowing agents.