baber/WOPTO huggingface dataset:
Patent JP-S58204613-A (JP)
Title: Differential amplifier
Inventor: FUKUSHIMA ISAO
IPC: H03F3/45
Filed: 1982-05-24
Abstract: PURPOSE:To obtain a signal without harmonics of an even number order, by connecting the emitter of two bipolar transistors (TRs) in common and connecting a drain of an MOSFET of common source connection to this connecting point. CONSTITUTION:Emitters of TRs1, 2 constituting a differential amplifier are connected in common, a drain D of the MOSFET16 the source S of which is grounded is connected to this connecting point, and this FET16 is operated as a constant current souce. In this circuit constitution, the voltage change of an input power supply 14 appears at the drain of the FET16 and the drain current is changed with the voltage change of the TR2. But the rate of this change is changed with the thickness of a gate oxide film constituting the MOS. Since the thickness of the gate oxide film is selected almost independently of the construction of the TR, the change in the drain current is very small against the change in the drain-source voltage. That is, since the output impedance of the drain side of the FET16 is increased, the hermonics of an even number order are reduced.
Patent JP-S5421294-A (JP)
Title: Avalanche photo diode
Inventor: WATASE MANABU
IPC: H01L31/107
Filed: 1977-07-19
Abstract: PURPOSE: To reduce the noise at carrier multiplying region and to increase the quentized efficiency at photo electric conversion region, by using semiconductor crystal materials mutually differnet and sufficeintly acting the functions of each region, for photo electric conversion region and carrier multiplying region. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H05286297-A (JP)
Title: Sheet stack body, such as drawing block and calender
Inventor: SAKURAI SHOICHI
IPC: B42D5/04
Filed: 1992-04-08
Abstract: PURPOSE:To obtain a sheet stack body, such as a drawing block and a calender, which can expose an arbitrary one selected out of a plurality of stacked sheets. CONSTITUTION:On the inner surfaces of support plates 3, 4 opposed to each other, guide lugs 9 having guide curved surfaces are disposed with a shift rightward or lefttward from the radially vertical center line of a shaft. The height of the guide lug 9 is lower than an interval formed by shafts at least by the thickness of a sheet stack item 2. The shafts are inserted through a shaft hole 6 of the sheet stack item. In this state, the sheet stack item 2 is clamped between the first and second support plates 3, 4. In this manner, the right and left edge parts of the sheet stack item split by a slit 7 are opened crosswise without any manual operation to abut on the guide lugs 9. By rotating one of the sheets about the shaft hole along the sheet surface, an exposed sheet can be changed.
Patent JP-S5711113-A (JP)
Title: Cooling-load reduction device for car
Inventor: FUKAMI AKIRA
IPC: B60H3/00
Filed: 1980-06-25
Abstract: PURPOSE: To reduce the cooling load in a car room and the required power of a compressor by arranging a louver blind at a position where the reflection of the scattered light from the blind by a rear window cannot enter the rear sight obtained by a room mirror for preventing the rear part of the car room against the direct radiation of the sun without disturbing the rear sight of the driver.  
     CONSTITUTION: A louver blind 8 is arranged nearer to a rear seat 5 than a rear window 2 by a fixed amount so that the light scattered by the blind 8 and reflected by the rear window 2 may not enter a rear sight A of a driver 7. In the blind 8, when louvers 9 are pulled upward and fixed by a fixing pin 13, they are all arranged horizontally in parallel, and at this stage, the rear seat 5 is properly prevented against the radiation of the sun shines in through the rear window 2 not to give any unpleasantness to the crew in the rear seat. Simultaneously, sufficient gaps are ensured among louvers 9 not to disturb the rear sight A of the driver 7. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-S529978-A (JP)
Title: Method for cleaning pallet
Inventor: NAKAMURA TSUKASA
IPC: E04G19/00
Filed: 1975-07-14
Abstract: PURPOSE: To provide a method for removing concrete pieces adhered to a pallet easily without using a sender of shot blast, etc. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S57202294-A (JP)
Title: Preparation of coenzyme q9
Inventor: KIMIZUKA FUSAO
IPC: C12P7/66
Filed: 1981-06-05
Abstract: PURPOSE: To prepare coenzyme Q 9 , by cultivating a bacterium belonging to the genus Rhodopseudomonas.  
     CONSTITUTION: A bacterium such as Rhodopseudomonas capsulate (FERM-P 879) belonging to the genus Rhodopseudomonas, capable of producting coenzyme Q 9  is inoculated into a nutritive medium, cultivated preferably nuder aerobic conditions, and coenzyme Q 9  is collected from the culture mold. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-S59212814-A (JP)
Title: Zoom lens system
Inventor: DOI RIYOUICHI
IPC: G02B15/173
Filed: 1983-05-18
Abstract: PURPOSE:To suppress the generation of distortion and aberration by providing the 1st divergent, the 2nd convergent, and the 3rd convergent lens groups as movable lens groups for zooming, and inhibiting the 1st divergent lens group from moving on a wide-angle side. CONSTITUTION:This zoom lens system consists of a lens group L1 which is fixed at zooming, the 1st moving divergent lens group L2, the 2nd moving convergent lens group L3, the 3rd moving convergent lens group L4, and an aperture F image forming lens group L5 successively from an object side. For zooming to the wide-angle side, the interval between the 2nd moving convergent lens group L3 and the 3rd moving convergent lens group L4 is increased and the 1st moving lens group L2 is inhibited from moving. Consequently, almost no shift in incident pupil position on the wide-angle side is made and the distortion and aberration is compensated.
Patent JP-H05288889-A (JP)
Title: Method and equipment for visualization through sodium
Inventor: TAKEISHI MASAYUKI
IPC: G21C17/003
Filed: 1992-04-08
Abstract: PURPOSE:To make it possible to reduce considerably an area which can not be visualized, to construct a visualizing system effectively, to reduce a dead angle, to reduce the effect of positioning precision, vibration, etc., produced by driving of a transducer and thereby to improve the quality of an image and further to attain miniaturization and weight reduction of an integrated type multitransducer for reception, simplfi-cation of a structure and an improvement in a leak performance, in addition. CONSTITUTION:When inspection of a structure being present in sodium of a sodium-cooled type reactor and detection of an extraneous substance therein are conducted, an ultrasonic beam is applied to an object 103 from a transducer 102 for transmission while the transducer 102 for transmission and an integrated type multitransducer 101 for reception are moved relatively. The ultrasonic beam reflected on the object 103 is received by the integrated type multitransducer 101 for reception, processed by a signal processing device 104 and visualized by an image monitor 105.
Patent JP-S60232865-A (JP)
Title: Polishing device
Inventor: OONO IETATSU
IPC: B24B31/02
Filed: 1984-04-30
Abstract: PURPOSE:To polish highly accurately by pivoting a spinning frame having a spinning shaft parallel with the revolving shaft at the outercircumference of revolving frame such that the axis of spinning frame will incline against the spinning shaft then holding many polishing tanks on the spinning frame and rotating the spinning frame and the revolving frame with proper speed. CONSTITUTION:The revolving frame 1 is journaled rotatably through spindle 3 to the base while spinning shafts 5, 5 at the opposite ends of spinning frame 4 for fixing a polishing tank are journaled between the outercircumferences of the opposite sideboards 1a, 1a of the frame 1. Material (a) to be polished is thrown together with abrasive (b) into respective polishing tank 17 and contained in respective partition 4C of spinning frame 4 to drive a motor 7 thus to rotate the spindle 3 and to revolve the spinning frame 4 around the spindle 3. Consequently, centrifugal force will function onto the spinning frame tank 4 to provide acceleration in radial direction of the revolving locus higher than the acceleration of gravity to the spinning frame 4 at anytime. Since the spinning shaft 5 and the inclined spinning frame 4 will perform pestle motion, materials (a), (b) contained in respective partition 4C will perform 8-character motion against acceleration thus to polish the entire circumference of material (a) uniformly.
Patent JP-S5422981-A (JP)
Title: Tubular incandescent lamp
Inventor: KAMIO NOBUYUKI
IPC: H01K1/14
Filed: 1977-07-22
Abstract: PURPOSE: To make unnecessary the machining of short bars inserted into a filament and improve the operating property etc. of a tubular incandescent lamp with the filament having luminous and non-luminous parts sequentially coupled with each other in the axial direction of the lamp. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S5313489-A (JP)
Title: Colorimetric analysis
Inventor: FURUTA YOSHITERU
IPC: G01J3/42
Filed: 1976-07-23
Abstract: PURPOSE:To make measured values of absorbance stably constant irrespective of the temperature change of a sample solution without use of a thermostat measurement cell by allowing two kinds of specific buffer agents co-present in the solution.
Patent JP-S59215075-A (JP)
Title: Front loading record player
Inventor: UEMATSU MOTOHISA
IPC: G11B19/02
Filed: 1983-05-20
Abstract: PURPOSE:To continue the performance by providing a logical control section, moving a main body backward after elevating a tone arm if under performance, stopping the movement of main body when it is discriminated that the main body is closed and descending the tone arm. CONSTITUTION:When an OIC button 1 is depressed with a record player main body in open position, a microcomputer 2 discriminates whether or not performance is being conducted at present. If under performance, the tone arm 5 is elevated via a tone arm control circuit 3 and the performance state is stored. Then the main body 6 is moved backward via a main body moving control circuit 4. The microcomputer 2 continues the movement of the main body 6 until an input to a close position detecting switch 7 is obtained, and after the input is confirmed and the movement of the main body 6 is stopped via the main body movement control circuit 4, the microcomputer 2 causes the tone arm 5 to be descended via the tone arm control circuit 3 by the stored information. The performance at the open position is continued after the movement of the main body.
Patent JP-H03285783-A (JP)
Title: Laser cutting and processing device
Inventor: SUGIYAMA HISAO
IPC: B23K26/00
Filed: 1990-04-03
Abstract: PURPOSE:To shorten the time for cutting and processing by providing an ejection hole for a detecting gas near the processing gas ejection hole of a nozzle and detecting the change in the gaseous pressure in a detecting gas supply path communicated therewith. CONSTITUTION:A laser beam 2 is emitted from the tapered end nozzle 11 of a processing head 5 and the processing gas is injected. A work 7 is cut and processed by utilizing the energy of the laser beam 2. The ejection hole 11c for the detecting gas for the purpose of detecting whether the boring of a through-hole to the work 7 by the laser beam 2 is completed or not is, thereupon, provided near the processing gas ejection hole 11a of the nozzle 11 and a pressure change detector 22 which detects a change in the gaseous pressure in a detecting gas supply route 11b is installed in the route 11b which is communicated with this hole and has nearly the same bore as the bore of the hole. The through-hole is surely detected din this way.
Patent JP-S57202526-A (JP)
Title: Fllm rewinding speed display device
Inventor: NAMIKI YASUSHI
IPC: G03B17/18
Filed: 1981-06-09
Abstract: PURPOSE:To ensure the ease panning, by providing a film rewinding speed adjusting mechanism and a film rewinding speed display device and by synchronizing the apparent moving speed of objects with the film rewinding speed. CONSTITUTION:Since photographing is performed under synchronizing condition of the apparent moving speed of objects and the film rewinding speed, film rewinding speed displaying LEDs 6 are provided and the film rewinding speed is displayed through the movement of flashing of the ten LEDs 6 arranged in one line, and then, a rewinding speed adjuster 8 is adjusted so as to synchronize the film rewinding speed with the apparent moving speed of objects. A magnet 4 on a rotating board fitted to the shaft of a motor traverses a magnetic sensor 5 as the motor rotates and generates a pulse. This pulse is inputted into a decoder circuit from a counting circuit 11 and successively flashes the LEDs 6. Movement of the flashing displays the film rewinding speed. Moreover, this pulse is counted and a LED 6 which displays the end of film rewinding is lighted through an FF circuit 13.
Patent JP-H01259566-A (JP)
Title: Semiconductor device and manufacture of the same
Inventor: AZUMA MASAHIKO
IPC: H01L29/788
Filed: 1988-04-08
Abstract: PURPOSE:To improve the efficiency of write and erase operations of a reloadable fixed storage element, by installing both specific semiconductor storage element and insulated gate type transistor on one semiconductor substrate. CONSTITUTION:A logical element MOS transistor TL of LDD structure and a reloadable fixed storage element not of LDD structure--EPROM (TM) are installed on one semiconductor substrate. This means that a logical element short-channelized for high integration and a high speed operation is composed of the insulated gate type transistor TL of LDD structure for prevention of the changes of the element characteristic caused by the formation of hot carrier. The reloadable fixed storage element TM having a floating gate is not of LDD structure and a drain area 16 and a source area 17 are directly connected with the lower part of a gate 14 to enhance the electric field strength of the edge of the drain 16. This improves the efficiency of write and erase operations.
Patent JP-S5421818-A (JP)
Title: Magnetic recorder-reproducer
Inventor: AKAMINE TAKENORI
IPC: G11B15/66
Filed: 1977-07-20
Abstract: PURPOSE: To perform high speed running of cassette tape smoothly and stably by such thing as detaching a pinch roller from a capstan by cooperating with fastfeed and rewinding operating member. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S59209078-A (JP)
Inventor: RARUFU DONARUDO JIESHII
IPC: H02M7/5387
Filed: 1984-04-27
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-H05257644-A (JP)
Title: Adding and subtracting circuit
IPC: G06F7/50
Filed: 1992-03-11
Abstract: PURPOSE:To obtain the adding and subtracting circuit which can operate fast even for addition and subtraction wherein a large number of digits are handled. CONSTITUTION:For (i)th digits except a 1st digit, AND circuits 1i and NOR circuits 2i which AND and NOR preceeding arithmetic results B1-Bi of the 1st-(i-1)th digits are provided. The outputs of those AND circuits 1i and NOR circuits 2i are selected and taken out by selectors 3i corresponding to a+1 command 7 and a -1 command 8 and inputted to other input sides of EXOR gates 4i. The preceeding arithmetic results Bi are inputted to one-input sides of the EXOR gates 4i, whose outputs are stored as arithmetic results in D-FFs 5i for the digits. Thus, the respective digits are processed independently of one another, so the need to wait for carries for preceding digits is eliminated to speed up the processing.
Patent JP-2000281740-A (JP)
Title: Preparation of polyurethane emulsion
Inventor: TANIMOTO SEIJI
IPC: C08G18/00
Filed: 1999-03-30
Abstract: PROBLEM TO BE SOLVED: To provide a preparation process for a polyurethane emulsion showing an improved stability when blended with other aqueous emulsions. SOLUTION: In an aqueous medium, a polyurethane prepolymer containing less than 3 wt.% anionic groups which are linked via covalent bonds in a molecule, is allowed to react with (a) a vinyl alcohol polymer having at least one functional group chosen from an amino group, a primary hydroxyl group and an acetoacetyl group in a molecule, and (b) a low-molecular weight compound hating an active hydrogen atom chosen from a primary amino group, a secondary amino group, a primary hydroxyl group and a secondary hydroxyl group in a molecule.
Patent JP-H01259574-A (JP)
Title: Nonlinear photoelectric conversion device
Inventor: AMANO CHIKARA
IPC: H01L27/14
Filed: 1988-04-08
Abstract: PURPOSE:To make an incident light strength to output voltage characteristic to show a hysteresis by a method wherein the first electrode is attached to a semiconductor substrate, the second electrode is attached to a semiconductor layer for the second photoelectric element and the third electrode is attached to a semiconductor layer for the second negative temperature coefficient resistance element respectively, while the third electrode is connected to the semiconductor substrate or to the first electrode. CONSTITUTION:A laminar electrode 16 having transmittivity is ohmicly attached to a semiconductor layer 5a for a photoelectric conversion of a semiconductor layer 4 for a photoelectric conversion element of a laminate 2 for a photoelectric conversion element through a window 13; further, a laminar electrode 17 is ohmicly attached to a semiconductor 9 for a negative temperature coefficient resistance element of a laminate 7 for a negative resistance element through a window 14. In this case, the electrode 17 is extended to the main surface 19 of a semiconductor substrate 1 passing over an insulating layer 12 and its extension end is ohmicly connected to the semiconductor substrate 1. Thereby, an incident light strength to output voltage characteristic shows a hysteresis characteristic and is obtained in the wavelength range of the specially wide incident light 22.
Patent JP-S5313473-A (JP)
Title: Electronic watch
Inventor: KASAI YOSHIHIKO
IPC: G04C10/00
Filed: 1976-07-23
Abstract: PURPOSE:To provide an electronic watch, in which generators, in use of liquid for converting kinetic energy produced by the motion of wrist into electrical energy, are disposed respectively at positions near six o'clock and twelve o'clock of the timepiece dial, whereby electricity can be charged in a stable manner.
Patent JP-H08287567-A (JP)
Title: Optical disk device
Inventor: YAMAGUCHI HIDEO
IPC: G11B33/14
Filed: 1995-04-13
Abstract: PURPOSE: To obtain a small-sized optical disk device having an efficient spindle motor capable of relieving the temp. rise in the optical disk device. CONSTITUTION: A turntable 14 which rotates in synchronization with an optical disk 1 and has vanes 14a to be mounted with the optical disk 1 and a clamper 15 which has vanes 15a for fixing the optical disk 1 to the turntable 14. The optical disk device has an attraction magnet 11 which is disposed at the turntable 14 attracted to the clamper plate 12 disposed at the clamper 15 and a driving coil 8 for rotating the turntable 14. Then, the flow of wind is generated by rotation of the vanes 14a, 15a, by which the temp. rise of the driving coil 8 and the attraction magnet 11 is relieved. The temp. rise in the device is thus relieved coupled with the flow of the wind according to the rotation of the optical disk 1.
Patent JP-H08287500-A (JP)
Title: Information reproducing device
Inventor: MATSUBA HIROYUKI
IPC: G11B33/12
Filed: 1995-04-13
Abstract: PURPOSE: To prevent an objective lens from soiling when an optical disk drive is detached from a personal computer. CONSTITUTION: A movable shutter 21 is provided on a drive main body 13 of the optical disk drive, which is furnished with a turntable 15 loaded with the optical disk 14, an optical pickup 17 having the objective lens 16, and the like. The shutter 21 is pressed by a spring material 24 in the direction shielding the optical lens 16. When the drive main body 13 is loaded on a fitting groove of a main body of the note type personal computer, the shutter is opened by hitting against a stopper of the main body side of personal computer, thereby the objective lens 16 is exposed. When it is unloaded from the fitting groove, the shutter 21 is closed by the spring material 24 to shield the objective lens 16.
Patent JP-S60230533-A (JP)
Title: Fuel feeding apparatus for internal-combustion engine
Inventor: SAITOU MASAAKI
IPC: F02D41/10
Filed: 1984-05-01
Abstract: PURPOSE:To improve the response in control by learning the fuel feeding amount suitable for the aimed air-fuel ratio in correspondence with the delay time between the fuel feeding time and the fuel feeding amount calculating time and carrying-out feed-forward control according to the learned value in the next acceleration operation. CONSTITUTION:The captioned apparatus is equipped with a control unit 20 into which the output of the engine operation-state detecting means including an air flow meter 5, opening-degree sensor 22 for detecting the opening-degree of a throttle valve 6, and an air-fuel ratio sensor 24 for detecting the concentration of O2 in exhaust with the air-fuel ratio ranging from rich region to lean region. In said control unit 20, the fuel feeding timing and the fuel feeding amount of an injector 7 are determined so that an aimed air-fuel ratio is obtained according to the engine operation state. When acceleration state is detected, the delay time between the fuel feeding time and the fuel feeding amount calculating time is calculated, and feed-forward control is performed to correct the fuel feeding amount in the next acceleration operation in correspondence with the delay time.
Patent JP-H02267725-A (JP)
Title: Magnetic recording medium
Inventor: KANAZAWA KIYOSUMI
IPC: G11B5/708
Filed: 1989-04-10
Abstract: PURPOSE:To obtain a recording medium having excellent durability and electric characteristics by incorporating at least one of Al and Si by a specified amt. into the magnetic layer. CONSTITUTION:The magnetic recording medium has a magnetic layer essentially comprising Co-Cr formed on a nonmagnetic substrate 10. The magnetic layers 12, 14 contain at least one of Al and Si by 0.003 - 5wt.%. The nonmagnetic substrate is, for example, a plastic film. The first layer 12 improves the magnetic coupling with a head to improve the recording/reproducing efficiency, while the second layer 14 comprising Co-Cr with addition of a little amt. of oxidative inorg. material such as Al, Si and Ti works for magnetic recording of data. The added inorg. material produces oxide of Co or Cr to protect the medium, and therefore, Al and Si are more preferable. Then a protective layer 16 and a lubricating layer 18 are formed on the second magnetic layer 14.
Patent JP-H11263087-A (JP)
Title: Information recording medium
Inventor: HASHIMOTO KATSUSUKE
IPC: B42D15/02
Filed: 1998-03-18
Abstract: PROBLEM TO BE SOLVED: To provide an information recording medium in which readout of information by visual observation is made impossible by sticking a concealment label in the recording part of information desirous of concealment and readout is mechanically enabled in such a state that the concealment label is left stuck on the recording part in the case of reading this information. SOLUTION: The information recording medium is constituted of a concealment label 13 in which an adhesive layer 11 is formed on the rear of a member 12 having infrared rays permeability and visible light impermeability or infrared rays reflecting properties and visible light impermeability, of releasing paper 14 releasably adhering to a face removing one end edge of the adhesive layer 11 of the concealment label 13, of superposition of the concealment label 13 on at least a concealment information-entering column of a concealment information-entering sheet 4 and also of adhesion and integration of one end edge of the adhesive layer 11 and the concealment information-entering sheet 4.