baber/WOPTO huggingface dataset:
Patent JP-S60251778-A (JP)
Title: Video signal amplifier circuit
Inventor: HIRAMA MASAMI
IPC: G11B20/02
Filed: 1984-05-29
Abstract: PURPOSE:To simplify the adjustment of a video signal and to stabilize the brightness by detecting a deviation between a setting value of a black level and the black level of a video signal and controlling the titled circuit that the deviation of the black level is decreased when the deviation of the black level is detected. CONSTITUTION:A video signal inputted from an input terminal is amplified by a pre-stage amplifier circuit 1, a middle stage amplifier circuit 2, and a final stage amplifier circuit 3. A black level control section 17 receives an output of a black level detecting section 16 to control the black level. A control section 20 receives an output of a horizontal synchronizing signal detecting section 19 to control the black level detecting section 16 and the black level control section 17. When the black level detection section 16 detects the deviation between the setting value of the black level and the black level of the video signal, the black level control section 17 controls the deviation of the black level to decrease it by utilizing the deviation between currents flowing to the black level setting circuit and the detecting circuit.
Patent JP-H02292734-A (JP)
Title: Optical head for recording and reproducing disk
Inventor: YANAGAWA NAOHARU
IPC: G11B7/135
Filed: 1989-05-01
Abstract: PURPOSE:To prevent defects in read, write and erasure of a signal occurring by varying the external force to be applied on an optical member with refractive change corresponding to the output of the semiconductor laser, thereby focusing light on the recording plane of a disk in spite of the strength of the output of a semiconductor laser. CONSTITUTION:The optical member 6 with refractive change in which the refractive state of the light is varied with the external force is arranged in an optical path from the semiconductor laser 1 to the recording plane 4 of the disk, and the external force applied on the member is varied relating to the strength of a laser beam. Therefore, focusing shift attending on the change of the wavelength of the laser beam generated when the emitting power of the laser beam is increased can be automatically corrected, and de-focusing generated in such case can be corrected. Also, as for the speed of the focusing shift, that of the servo mechanism of an objective lens can be increased to several tens GHz though it is at several tens kHz in a conventional system which can respond to the speed required for the focusing shift. Thus, no write or erasure defect, etc., at a data part can be prevented from occurring.
Patent JP-H04337650-A (JP)
Title: Manufacture of semiconductor integrated circuit device
Inventor: INOUE TETSUHIRO
IPC: H01L21/316
Filed: 1991-05-14
Abstract: PURPOSE:To prevent a high concentration region to be formed as a channel stop in an isolation region from spreading to an element region and to suppress the rise of the impurity concentration of a silicon substrate in the element region. CONSTITUTION:An opening 15 is formed in a silicon nitride film 12 and silicon oxide film 13 to be formed on a silicon substrate 10 via thin silicon oxide film 11 and a silicon substrate 10 surface to be exposed in this opening 15 is oxidized selectively so that a silicon oxide film 17 constituting an isolation region is formed. Further, impurity ions of the same conductive type as the silicon substrate 10 is injected while the silicon oxide film 13 is used as a mask so that a high concentration region 16 is formed in the silicon substrate 10 region under the silicon oxide film 17. Then, a resist 18 is applied onto the silicon oxide film 13, the silicon oxide film 13 is exposed by etch back, the silicon oxide film 17 in the isolation region is protected by the resist 18, and the silicon oxide film 13 is removed by etching.
Patent JP-H02288575-A (JP)
Title: Electronic still camera equipment
Inventor: SO SHOJI
IPC: H04N9/73
Filed: 1989-04-28
Abstract: PURPOSE:To attain accurate white balance control even when a light of a strobo does not sufficiently reach and a distance from an object is far by using the distance between the object and an image pickup element, and correcting color temperature information at strobo flash. CONSTITUTION:In the case of strobo flash, a distance up to an object outputted by an AF sensor 10 and an arrival distance of a strobe are compared by a comparator circuit 11. Then color temperature information around the object at strobo non-flash and the color temperature information in response to the color temperature of the strobo are used and the result is calculated by a strobo color temperature information correction circuit 12 to obtain color temperature information for white balance control at strobo flash. Thus, even when the distance up to the object is far and the light of the strobo does not sufficiently reach the object, the white balance is made accurate regardless of the distance.
Patent JP-S5536050-A (JP)
Title: Ultrasonic wave wire bond method
Inventor: YOKOZAWA MASAMI
IPC: B23K1/06
Filed: 1978-09-05
Abstract: PURPOSE: To enable the perfect weld without placing cavities just under the electrode section by detecting the cavities if there are in the wax or not when a metallic thin lead is welded on the semiconductor base plate adhered with wax on the support of the base plate.  
     CONSTITUTION: The semiconductor base plate 1, where the Al electrodes 2, 3 are formed on, is adhered on the support 4 of the semiconductor base plate with the use of wax 5 for adhesion. Previous to connect the metallic thin lead to this electrode, the electrosonic wave probe 13 of the cavity detector 11 is contacted to the specified position of the electrode 2 or 3 and the ultrasonic wave generated by the ultrasonic wave generaltor 12 is propagated to the adhesive portion of the base plate 1 through the probe 13. As shown this, detection is made if there is cavity 6 or not in the wax layer 5 corresponding to the change of reflecting condition of ultrasonic wave. When the existence of cavity is confirmed, the probe 13 is moved to the portion of different electrode and the electrode position where the cavity does not exist is detected. The metallic thin leads 9, 10 are ultrasonic-wave welded here by using the ultrasonic wave wire bond. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S59314-A (JP)
Title: Electromagnetic filter
Inventor: KAWASAKI MICHIO
IPC: B03C1/034
Filed: 1982-06-25
Abstract: PURPOSE:To provide an electromagnetic filter, constituted so as to be capable of uniformly distributing magnetic flux even if the heights of a filler layer and an exciting coil are lowered by providing magnetic pole pieces to the upper and the lower parts of the filler layer comprising a magnetic filter material formed in a container. CONSTITUTION:An upper magnetic pole piece 10 is arranged to the upper part of the filler layer 2 comprising a granular or a powdery magnetic filter material formed in a container 1 and a lower magnetic pole piece 11 is arranged to the lower part thereof through a support plate 3. In addition, a magnetism blocking plate 5 comprising a magnetic material is provided so as to permit the end part thereof to be opposed to the magnetic pole pieces 10, 11. In this case, at least the upper magnetic pole piece 10 is formed into a wheel or a grid shape by a plate like body 10a held at a definite height and set to an opening ratio permitting the development of the filter material when the backwashing of the filler layer 2 is carried out. When a current is supplied to an exciting coil 4, magnetic flux is uniformly passed through the upper and the lower magnetic pole pieces 10, 11 from the magnetism blocking plate 5. Therefore, the distribution of magnetic flux passing the filler layer 2 is almost equalized and the passing direction thereof becomes linear.
Patent JP-H02290127-A (JP)
Title: Power supply circuit
Inventor: MORITA SATORU
IPC: H02H7/20
Filed: 1989-04-28
Abstract: PURPOSE:To obtain a power supply circuit with a protective function by connecting a diode making the input terminal side of an anode between an output point short-circuiting with an earth and the input terminal, and making the diode reverse-biased in the event of normal operation. CONSTITUTION:In the event of normal operation, an input of AC plug 25 is converted into DC by a DC conversion circuit 26, and a power input pin of a power IC 11, a control transistor 23, a reproducing switch 24 and an auxiliary connecting terminal of a function switch 7-1 are applied to a radio terminal to make a protective circuit diode 10 reverse-biased. In the event of such abnormal operation that an output line (a) of the control transistor 23 short-circuits with an earth, the cathode of the protective circuit diode 10 is connected to the output line (a) of the control transistor 23 to make an earth, and powers of the control transistor 23 and power amplifiers 12, 13 are turned OFF. According to the constitution, a power circuit with a protective function can be obtained.
Patent JP-H04337905-A (JP)
Title: Antenna
Inventor: USUI TAKESHI
IPC: H01Q1/42
Filed: 1991-05-15
Abstract: PURPOSE:To enable assembly and manufacture with a little man-hour and to reduce the number of parts. CONSTITUTION:An antenna element formed by a metal plate is fixed to the inner face of a housing 1 in counter to an opening part 2. A dielectric plate 4 is fitted into the housing 1, and a ground 5 formed by a metal plate is fitted and fixed to the opening part 2 of the housing, and the dielectric plate 4 is sandwiched between the ground 5 and the antenna element 3. The antenna can be constituted by respectively integrating the antenna element 3, ground 5, which are formed by the metal plates, and the dielectric plate 4 forming a dielectric layer into the housing 1. By fitting the ground 5 formed by the metal plate into the opening part 2 of the housing 1, it can be also used as the cover of the housing 1.
Patent JP-H1079416-A (JP)
Title: Placement stage for semiconductor wafer
Inventor: KIN KOSHOKU
IPC: H01L21/68
Filed: 1997-04-25
Abstract: PROBLEM TO BE SOLVED: To reduce the size of placement surfaces for placing a wafer and the size of a chuck for wafer loading by a method, wherein a plurality of the placement surfaces for placing the wafer are formed and the wafer is supported at three places. SOLUTION: Three cylindrical placement surfaces 12 are protuberantly formed on the upper surface of a stage 11, these three placement surfaces 12 are respectively arranged at the positions of three vertexes of a virtual regular triangle, and a wafer 13 is provided in such a way that the bottom of the wafer 13 can be stably supported at the three vertexes. Moreover, a chuck 14 of a robot, which loads the wafer 13 on the placement surfaces 12 or makes the wafer 13 unload from the placement surfaces 12, penetrates from the gap between the two placement surfaces 12 and supports the center part of the wafer 13/ Thereby, the size of the placement surfaces 12 for placing the wafer 13 and the size of the chuck 14 are reduced to enable lightening a burden of a drive source.
Patent JP-S62266445-A (JP)
Title: Printed circuit inspecting device
Inventor: TAKIZAWA HIDEO
IPC: G01N21/88
Filed: 1986-05-15
Abstract: PURPOSE:To speed up the inspection of a wire pattern, by providing a means on the top surface of a base plate where a printed circuit board is placed to reflect or diffuse an excitation light transmitted through a printed circuit board after irradiated from a light source. CONSTITUTION:Light 5 emitted from a light source 6 is selected 8 through a collimator lens 7 and an excitation light 14 thereof is made to irradiate a printed circuit board 1 through a dichroic mirror 9. A coating 16 with a high reflection factor and a high diffusibility is applied on the top surface of a base plate 4. Therefore, the excitation light 14 transmitted through a base material 3 is reflected or diffused by the coating 16 to be incident thereinto 3 again so that the quantity of fluorescence generated from the base material 3 will be increased. Light 17 as combination of the fluorescence generated from the base material 3 and the excitation light reflected on a wire surface 2 is turned to fluorescence 18 through a mirror 9 and a fluorescence transmitting filter 19 to be incident into a light receiver 12 through an image forming lens 11. This enables the processing of a wire pattern of the circuit board 1 at a high speed by processing the detection signal from the light receiver 12.
Patent JP-S591861-A (JP)
Title: Mechanical stepless transmission gear
Inventor: TAKAHASHI MASAYOSHI
IPC: F16H37/02
Filed: 1982-06-28
Abstract: PURPOSE:To enable reversing of rotation of an output shaft and to improve durability of cones and a ring, by combining a planet gear mechanism with a friction transferring device consisting of 2 cones, positioned in the opposite direction to each other and having the outer sides parallel to each other, and a single common ring. CONSTITUTION:Two cones 2 and 3 are positioned in the opposite direction to each other, and the geometrical position relation of the two cones 2 and 3 to a fixed ring 4 is symmetrical about the direction of an axis through movement of the fixed ring 4. Through the working of each planet mechanism 11, this arrangement has no relation with the direction of input rotation, and an output shaft 12 is reversely rotatable. The movement of the fixed ring 4 brings a speed ratio No/Ni to a positive or a negative valve, and the rotating direction of the output shaft 12 is also brought to a positive or a negative value. In case the fixed ring 4 makes contact with the small size part of the one cone 2, it makes contact with the large size part of the other cone 3, whereby a total sum of the contact areas between the fixed ring 4 and the two cones 2 and 3 is kept constant irrespective of the position of the fixed ring 4 i.e. the speed ratio No/Ni.
Patent JP-H04316318-A (JP)
Title: Surface structure of compound semiconductor and fabrication thereof
Inventor: WADA YOSHIKI
IPC: H01L21/304
Filed: 1991-04-15
Abstract: PURPOSE:To retard pinning of Fermi level and increase absolute amount of reforming effect, on the surface of a compound semiconductor. CONSTITUTION:A quite thin distortion layer of compound semiconductor composed of one or more atoms selected from In, Ga, Al, B and one or more atoms selected from As, P is provided on the surface of GaAs crystal or mixed crystal of III-V compound semiconductor containing Ga and As. An oxide layer of P or S is then formed on the distortion layer so that the upper end of the valence band of the distortion layer is located at a position of lower electronic energy than the upper end of the valence band of the crystal.
Patent JP-H11305755-A (JP)
Title: Image display device
Inventor: ISHII NOBUAKI
IPC: G06F3/048
Filed: 1998-04-20
Abstract: PROBLEM TO BE SOLVED: To maintain the relation with remaining characters even when a desired specific character is enlarged when the image display device is used for a monitor and control device, etc., and many characters are displayed with high density. SOLUTION: To enlarge the character of a transformer shown in an area A on a monitor screen of a power skeleton drawing shown by (a), an area V1 is enlarged vertically about a reference point P as shown by (b), an area H1 is enlarged horizontally, and vertical areas V2 and V3 and horizontal areas H2 and H3 are reduced. Consequently, some or all of remaining characters do not disappear and while all the characters are displayed, only the specific character can be enlarged; even after the character is enlarged, the relation with the remaining characters can be maintained and the position of the specific character on the screen can be grasped.
Patent JP-H08321966-A (JP)
Title: Tilt correcting circuit of monitor
Inventor: CHIN YOUTOKU
IPC: H04N3/22
Filed: 1996-04-30
Abstract: PROBLEM TO BE SOLVED: To improve image quality by removing a tilt phenomenon by adjusting a scanning angle of an electronic beam according to directions and bulk of electric current to be varied, depending on a difference in sizes between a first signal and a second signal. SOLUTION: A control signal Vin is supplied t a first control part, transistors 231, 234 are switched, a first electric current signal i1 is generated, a signal i1 is smoothed and the first signal OUT1 is outputted. On the other hand, an input signal Vdc is supplied to a second control part, the transistor 321, 324 are switched, a second electric current signal i2 is smoothed, and a second signal OUT2 is outputted. When the varied signal OUT1 is larger than the signal Vdc, the electric current flows in a direction A, and when the varied signal OUT1 is smaller than the signal Vdc, the electric current flows in a direction B. The scanning angle of the electronic beam is varied according to the direction and the bulk of the electric current flowing into such a tilt correction coil 1, and the tilt phenomenon is corrected.
Patent JP-H02286088-A (JP)
Title: Phospholipase a2 inhibitor
Inventor: YOSHIDA TADASHI
IPC: A61P7/00
Filed: 1989-04-28
Abstract: NEW MATERIAL:Thielocin alpha obtained by culturing a strain Thielavia.terricola RF-143. Molecular formula; C54H60O18. Secondary ion mass spectrometry (SI-MS); m/z 997(M+1). Appearance and properties; acidic colorless powder. Melting point; 190-194 deg.C. Solubility; soluble in acetone, etc., slightly soluble in methanol, etc., sparingly soluble or insoluble in hexane, etc. USE:A phospholipase A2 inhibitor useful for preventing and treating diseases caused by phospholipase A2. PREPARATION:A strain Thielavia.terricola RF-143 is cultured at 28 deg.C in a shaken flask for 1-10 days while being aerated and the objective substance is separated and purified from the resultant culture.
Patent JP-S5734486-A (JP)
Title: Electronic sound reporting watch
Inventor: TAJIMA AKIO
IPC: G04G5/00
Filed: 1980-08-11
Abstract: PURPOSE:To make it possible to grasp the contents of a memory circuit by verifying sound and to eliminate compensation errors, by differentiating the compensation verifying sound which is generated in response to the generation of compensating pulses for the contents of a memory circuit for every hour on the hour based on the contents of the memory circuit. CONSTITUTION:The time reporting signal of the number corresponding to the every hour on the hour is generated in a generating circuit 8 from the outputs of the memory circuit 4 for every hour on the hour and a counter 5 which counts the number of reporting hour. The compensating pulses are generated by the manual operation of a compensation switch, and the contents of the memory circuit 4 is compensated. The compensation verifying signal corresponding to the contents of the memory circuit 4 is generated in a variable frequency divider 9 in response to the generation of said compensating pulses, and the compensation verifying sound is generated 11. Since the compensation verifying sound is differentiated based on the contents of the memory circuit, the contents of the memory circuit can be grasped by the verifying sound, and the compensation errors can be eliminated.
Patent JP-H02293465-A (JP)
Title: Production of nonwoven fabrics
Inventor: OIKAWA KATSUHIKO
IPC: D06C29/00
Filed: 1989-04-27
Abstract: PURPOSE:To obtain a nonwoven fabric which has no thickness fluctuation and filament drop with high chemical and heat resistance and non-tackiness by needle-punching fabrics which are prepared by weaving or knitting yarns of a thermoplastic fluorine polymer and heat-treating them at specific pressure and temperature. CONSTITUTION:Yarns made of a thermoplastic fluorine polymer such as tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer are woven or knitted and the fabrics are subjected to the needle punching or air jet process to allow the filaments to entangle with one another. The resultant fabrics are heat-treated in a temperature range from the melting point of the copolymer to that 15 deg.C higher than the melting point at a pressure of from 5 to 20kg/cm<2>, or 15 to 40kg/cm<2> to bond the desired parts of the fabrics.
Patent JP-H06301443-A (JP)
Title: Portable information processor
Inventor: OSADA TAKETO
IPC: G06F1/16
Filed: 1993-04-13
Abstract: PURPOSE:To easily obtain a hard copy of output data by the portable information processor such as a notebook type personal computer and an electronic notebook. CONSTITUTION:A display panel part 14 consisting of a liquid crystal display unit is coupled with a device body 12 equipped with a keyboard 11 through a connection part 13 in a back and forth rotatable state. The display panel part 14 is rotatable by >=180 deg. on the device body 12. The display panel part 14 has none of members such as a stopper and a switch projecting from the display surface by >=5mm equivalent to the depth of focus of a copying machine and the difference between the maximum projection surface (frame surface) of a panel casing and the display surface is set to <=5mm. Consequently, the device body is placed on the original platen of the copying machine with the display surface down and data can easily be printed out through normal copying operation.
Patent JP-S5811921-A (JP)
Title: Diaphragm controlling device for internal lighting system single-lens reflex camera
Inventor: NAKAI MASAAKI
IPC: G03B7/16
Filed: 1981-07-16
Abstract: PURPOSE:To control the stopping-down of a diaphragm by releasing the stop of releasing a diaphragm controlling system at the output of a signal from a light emitting means. CONSTITUTION:When a stroboscope ST completes the preparation of light emitting, a signal ''0'' is outputted to a light emitting diode LD and it is displayed in a finder that stroboscopic photographing is made ready by the lighting of the diode LD. Simultaneously with said operation, a signal ''0'' is outputted from the stroboscope ST to an AND circuit G3. The AND circuit G3 outputs the received signal to a latch circuit LT. Thus the output ''0'' is latched in the circuit LT and an output from the circuit LT opens the gate of an AND circuit G1. Consequently a signal ''1'' from a self-holding circuit SH is passed through the circuit G1 and applied to the input terminal IN6 of the AND circuit G2 and the input terminal IN8 of a electromagnet driving circuit MD1. The electromagnet MG1 is excited in response to the close of the release switch RS and a diaphragm controlling means is released, so that stopping-down of a diaphragm A is started.
Patent JP-S5335460-A (JP)
Title: Antenna
Inventor: NISHIOKA YONEO
IPC: H01Q3/46
Filed: 1976-09-14
Abstract: PURPOSE:To extend the coverage of radar, by commonly using the array surface thru the provision of a pair of primary radiators on the both sides of array section.
Patent JP-S5735759-A (JP)
Title: Current detecting circuit for thyristor converter
Inventor: TOBIYO MASAHIRO
IPC: H02M7/17
Filed: 1980-08-13
Abstract: PURPOSE:To detect d.c. current equivalently including polarity with one set of current transformers and without using insulating amplifier by combining a gate block signal and output signal of current transformer. CONSTITUTION:Output of electric power source 1 is applied to a d.c. motor 6 through a positive side thyrstor cnverter 3 and a reverse side thyristor converter 4 which are controlled by a positive side gate block release signal 10 and a reverse side gate block release signal 11. On the other hand, output of a current transformer 2 is applied to a subtracter 20 through a rectifier 8 and a resistor 9. At the same  time, output of the resistor 9 is applied to the substracter 20 through a relay controlled by a gain circuit 19 and the reverse side gate block release signal 11, and an  equivalent d.c. signal I6 of polarity corresponding to d.c. current ID is obtained. By  this way, detection can be made without using an expensive insulating amplifier  and two sets of current transformers, and the cost of the detecting circuit can be  reduced.