baber/WOPTO huggingface dataset:
Patent JP-H03228336-A (JP)
Title: Velocity-modulated field-effect transistor
Inventor: MAEZAWA KOICHI
IPC: H01L21/338
Filed: 1990-02-02
Abstract: PURPOSE:To obtain velocity-modulated field-effect transistors with desired drain-current characteristics with no difficulties in manufacture by composing the first and second channel layers in a complex channel layer of the respective specific semiconductors, and the first and second barrier layers of the respective specific semiconductors or insulators. CONSTITUTION:The title transistor is so designed as to have a complex channel layer 60', barrier layers 51', 52', and gate electrode layers 31, 32, a source electrode layer 71, and a drain electrode layer 72: in this case, the first and second channel layers 61', 62' consist of the first and second semiconductors, as viewed on a wave-vector space, different in valleys which define the lowermost end of conduction band and in electron effective mass at the lowermost end of conduction band, the first barrier layer 51' consists of the third semiconductor or the first semiconductor having the lower end of conduction band at an energy level higher than the lowermost end of conduction band of the first semiconductor that constitutes the first channel layer 61', and the second barrier layer 52' consists of the fourth semiconductor or the second insulator having the lower end of conduction band at an energy level higher than the lowermost end of conduction band of the second semiconductor that constitutes the second channel layer 62'.
Patent JP-H02206396-A (JP)
Title: Current controller for dc motor
Inventor: SASAKI TAKASHI
IPC: H02P7/29
Filed: 1989-02-03
Abstract: PURPOSE:To prevent uneven current flow through respective FETs and to improve efficiency by connecting a plurality of FETs having such characteristic as ON resistance thereof increases with temperature to limit current, in parallel. CONSTITUTION:A pulse width control system PWM speed control circuit 34 varies ON time ratio (duty ratio) for single period of a group of FETs 16 by varying the pulse width of a gate signal G from the output voltage from an accelerator manipulated variable detecting section 20, and controls motor current through chopper system. The FET group 16 is constituted of a plurality of FETs connected in parallel, while diode group 18 constituted of a plurality of diodes connected in parallel. By such arrangement, current does not become partial by uneven elements, surge voltage can be suppressed during commutation by shortening the connecting wires between the elements, and the wiring can be simplified.
Patent JP-H10293179-A (JP)
Title: Distance measuring device
Inventor: WETTEBORN HAINER
IPC: G01S17/14
Filed: 1998-02-05
Abstract: PROBLEM TO BE SOLVED: To develop a distance measuring device of a kind initially specified so that production cost is reduced and the measuring accuracy in producing and exact repeatability are especially increased. SOLUTION: A single beam pulse laser distance meter in this device consists of a light transmitter 1, a light receiver 2, a light attenuator 11 and a time measurement unit 13 measuring time of light running between the transmission and reception of the light signal. The light transmitter 1 is formed as single and compact module which integrates a semiconductor laser 17, connection elements 18 for the semiconductor laser 17, a reference pulse separator 19 and a fiber plug connector 21 connecting the transmission light to an optical transmission fiber 4. The light receiver 2 also is formed as single and compact module which integrates a photodiode, connection elements for the photodiode, connection device for the reference pulse and a fiber plug connector for connecting reception light generated via a photoconduction fiber 10b.
Patent JP-S63194592-A (JP)
Title: Speed regulator for motor
Inventor: NAKAMURA YASUHIKO
IPC: H02P23/07
Filed: 1987-02-04
Abstract: PURPOSE:To operate a motor at ultra-high speed without changing the size of the motor when an air speed higher than a peed available with a strong notch is required in a short period of time, by connecting a thermal switch and a capacitor for ultra-high speed in parallel to a phase advance capacitor. CONSTITUTION:When a motor is not operated, the movable contact 12 of a thermal switch 14 is connected to the fixed contact 11 of the same. When ultra- strong notch operation is started under this condition, the terminals 20, 21 of a speed regulating switch 8 become conductive and a capacitor 15 for ultra-high speed is connected in parallel to a phase advance capacitor 5, therefore, the torque of the motor is increased and ultra-strong airflow may be obtained. When the winding 26 of the motor generates heat and the temperature of the winding 26 arrives at the operating tempe rature of the thermal switch 14, a heat sensitive element 13 is operated and the movable contact 12 is separated from the fixed contact 11. Therefore, the parallel condition of the capacitor 15 for ultra-high speed and the phase advance capacitor 5 is released and the motor may be operated in a normal operation under a strong notch operation.
Patent JP-H08255526-A (JP)
Title: Preparation of insulating material
Inventor: ERIASU YURUKE
IPC: H01B19/00
Filed: 1996-02-09
Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing an insulator having an electric insulating material applied to an undercoating covering layer, in which uniformity of the applied undercoating covering layer can be checked with relative ease. SOLUTION: An undercoating solution is applied to at least one element. The applied undercoating solution is dried to form an undercoat covering layer 12. Thereafter, an electric insulating material is applied onto the undercoating covering layer 12. Before the application of the electric insulating material, a fluorescent material is dissolved in the undercoating solution, and the undercoating covering layer 12 is exposed to a light source. Consequently, it is possible to find a point at the surface of at least one element where the undercoating covering layer 12 is incompletely applied. The undercoating solution is applied to the point at the surface of at least one element where the undercoating covering layer 12 is incompletely applied, if desired.
Patent JP-H10224554-A (JP)
Title: Control method for image reader
Inventor: YAMAZAKI NOBUHISA
IPC: H04N1/028
Filed: 1997-02-06
Abstract: PROBLEM TO BE SOLVED: To provide a control method of a color image reader for facilitating the correction of color information and to provide a control method for setting the specifications of colors to be eliminated in the reader corresponding to the color applied to an original to be the object of read in the image reader for specifying a specified color and eliminating it at the time of read. SOLUTION: In the color image reader, a light emitting part 2 to be a light source is composed of the single color light emitting part 2R of red, the single color light emitting part 2G of green and the single color light emitting part 2B of blue, and by making the respective single color light emitting parts respectively independently emit light, individual spectral optical signals are supplied to a light receiving part 3. Also, by controlling the respective light emitting time values of the single color light emitting part 2R of red, the single color light emitting part 2G of green and the single color light emitting part 2B of blue, the color tone of images acquired by the image reader is corrected and the specifications of the colors requiring elimination in the image reader are set.
Patent JP-H11222365-A (JP)
Title: Elevator control device
Inventor: KOKUBU MATSUO
IPC: B66B5/02
Filed: 1998-02-05
Abstract: PROBLEM TO BE SOLVED: To prevent the effacement of data of a memory caused by power source loss and easily resume operation at the time of power source recovery. SOLUTION: Upon the output of a power source loss signal 5 from a power source detecting device 1 at the time of loss of a power source, an elevator control device 3 records data of RAM 4 in an RAM data recording device 2. Upon the output of a power source recovery signal 7 from the power source detecting device 1 at the time of power source recovery, the data of the RAM data recording device 2 is returned to the RAM 4. The elevator control device 3 can take subsequent control action using this data.
Patent JP-S63195130-A (JP)
Title: Production of glass for laser
Inventor: OMAE TOSHIKAZU
IPC: C03C11/00
Filed: 1987-02-04
Abstract: PURPOSE:To obtain a high-purity glass for laser, by embedding a rare earth element chloride in a porous glass preform and heat-treating the porous glass preform in a dehydrating gas atmosphere. CONSTITUTION:A rare earth element chloride is embedded in a porous glass preform and the preform is heat-treated in a dehydrating gas atmosphere to obtain a transparent glass for laser. The rare earth element chloride used in the above process is e.g. NdCl2, ErCl2, etc. The embedding of the rare earth element chloride in a porous glass preform can be carried out by boring a hole at an end of a porous glass preform, putting a rare earth element chloride in the hole and filling the hole with powder of porous glass preform. Since porous glass preform is brittle, it may be difficult to bore a hole in the porous glass preform. In such a case, the porous glass preform may be heat-treated at 1,200 deg.C for the about 30min., hardened to an extent and bored to form a hole for embedding the chloride.
Patent JP-S58140419-A (JP)
Title: Scavenging device for 2-cycle engine
Inventor: NAKATANI MITSUNOBU
IPC: F02B25/14
Filed: 1982-02-16
Abstract: PURPOSE:To perform a reliable firing in a manner to maintain a fuel-air mixture at an ignition plug part, by a method wherein a seal part, being capable of sliding in a manner to hold an airtightness between a scavenging port, formed in a head part of a piston, and a cylinder, and a heat-resisting rubber seal are located at the inside. CONSTITUTION:A seal part 7, being capable of sliding in a manner to maintain an airtightness between a scavenging port 3, formed in head part 2 of a piston 1, and a cylinder 4 is located. At air feed path is constituted through the formation of the scavenging port 3 and a concavity 5 in the inner periphery of the cylinder. With the piston 1 raised, the scavenging port 3 and the concavity 5 are closed, and an exhaust port 11 is also closed to bring it into a compression stroke a scavenging flow is compressed, and a fuel-air mixture is held at an ignition plug part. This allows the reliable firing.
Patent JP-S55117100-A (JP)
Title: Bubble pump
Inventor: HAGIWARA KOUICHI
IPC: F04B47/00
Filed: 1979-03-01
Abstract: PURPOSE: To make it possible to effectively obtain a large pumping rate at initial pumping stroke of each of pump-up pipes, as well as large pumping power, by providing a bubble pump having two pump-up pipes and two air pipes, the supply of compressed air to the air pipes being switched alternatingly and automatically.  
     CONSTITUTION: A pair of discharge ports 1 are provided at the upper parts of two pump-up pipes 6. A water receiving plate 2 with a pushing rod 3 is incorporated in each discharge port. A connecting lever 4 is connected at its both ends to the upper ends of two pushing rods. A change-over valve 5 is operatively connected to the connecting laver 4. An air pipe 7 is divided by the change-over valve 5 into two sections which are connected to lower ends of the pump-up pipes 6. As compressed air is supplied to one of the sections of air pipe 7, the water in the corresponding pumping-up pipe 6 is displaced and discharged through the discharge port after colliding with the water receiving plate 2, so that the latter is pushed upward to switch the change-over valve 5 through the action of the connecting lever 4. In consequence, the compressed air is charged into the other section of the air pipe 7. This operation is automatically repeated to obtain large amount of water effectively at the initial pumping action of each pumping-up pipe. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H01199252-A (JP)
Title: Memory device
Inventor: MORI YASUSHI
IPC: G06F21/60
Filed: 1988-02-03
Abstract: PURPOSE:To permanently inhibit the rewrite of the data on a PROM which are once written by applying the negative voltage to a write power supply terminal and cutting a fuse in a program terminal to invalidate the signals applied to the program terminal. CONSTITUTION:In a normal write mode the positive voltage is applied to a write power supply terminal VPP with a write program applied to a program terminal PRG respectively. Thus the data are written into a PROM. When the inhibition of the data write is desired in the PROM after said write of data is through, the negative voltage is applied to the terminal VPP. As a result, the fuse is cut and the terminal PRG is always kept at '0' in a chip. Thus the subsequent writing actions are inhibited for ever.
Patent JP-H09217129-A (JP)
Title: Production of sintered ore
Inventor: KAWAGUCHI TAKUYA
IPC: C22B1/20
Filed: 1996-02-09
Abstract: PROBLEM TO BE SOLVED: To enhance a magnetic floating effect and enhance the productivity, yield and quality of sintered ore by deliberately development of cracking in sinter cake at the time of producing the sintered ore by using a magnetic froating device by an air suctioning sintering machine. SOLUTION: One or 2>= pieces of straight injection nozzle 11 which inject water flow perpendicularly downward and has a bore of 3 to 5mm are fixed right above a pallet 3 on the ore feed side of an ignition device 5 in such a manner that the front ends of the nozzles exist apart 50 to 150mm from the surface of a raw material layer. While water of 3 to 10 liter/min per piece of the nozzles 11 is supplied to the surface of the raw material layer, the surface of the raw material layer is fired by the succeeding ignition device 5. The unfired parts are made to act as the cracking by the supply of the water in the subsequent sintering process or after the cracking are developed in the unfired parts, the sinter cake is subjected to sintering while magnetic buoyancy is acted thereon.
Patent JP-2000218055-A (JP)
Title: Game device, information storage medium and game system
Inventor: OHATA TAKAHISA
IPC: A63F13/45
Filed: 1999-02-02
Abstract: PROBLEM TO BE SOLVED: To provide a game device capable of increasing the marguee and working ratio of a gondola. SOLUTION: This game device for the gondola 110 capable of viewing scenery on the outside from the inside and moving along a prescribed moving route is provided with an information-for-playing-game storage means for storing information for playing a game related to the scenery changed along with the movement of the gondola 110, a means for making a player perform input relating to the game inside the gondola, a processing means for performing a game arithmetic operation corresponding to the moving position of the gondola based on the information inputted by the player and the information for playing the game and a means for outputting at least one of images and sound corresponding to the game arithmetic operation.
Patent JP-S63212427-A (JP)
Inventor: JIYOSEFU EI AAMONDO
IPC: B23Q3/15
Filed: 1988-02-04
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-H01199190-A (JP)
Title: Production of fuel element with axial distribution of enrichment
Inventor: AOKI GIICHI
IPC: G21C3/28
Filed: 1988-02-04
Abstract: PURPOSE:To prevent a wrong arrangement of nuclear fuel pellets, by changing the pellets' height according to difference of enrichments at forming of the fuel pellets and by filling the pellets in a fuel cladding so as to attain a predetermined axial distribution of enrichment. CONSTITUTION:When mixed powder of an UO2 and a PuO2 is formed to fuel pellets, the fuel pellets are formed with different heights according to differences of enrichments. If a low enrichment pellet is formed with the height by some 2mm lower than that of a high enrichment pellet, for instance, the two kinds of the pellets are distinguishable even visibly. These formed pieces are sintered and ground to produce manufactured fuel pellets. When the pellets are filled into a fuel cladding 22, low enrichment pellets 20a and high enrichment pellets 20b are arranged in an arranging plate so that a predetermined axial enrichment distribution may be attained, thereafter the arranged pellets row 26 is inserted into the fuel cladding 22 by a pusher 24. At this process, whether an arrangement of the pellets 20a and 20b is wrong or not, can be confirmed by a visible checking of the pellets' height.
Patent JP-S61184432-A (JP)
Title: Method for monitoring thermal stress
Inventor: SASABUCHI AKIRA
IPC: G01K13/00
Filed: 1985-02-12
Abstract: PURPOSE:To accurately monitor the thermal stress of an object to be monitored, by measuring the specific fluid condition in the object to be monitored and the outer surface temp. of said object to calculate non-steady temp. distribution near to actual temp. CONSTITUTION:The stress of an object to be monitored is calculated on the basis of temp. distribution calculated by a temp. distribution apparatus and internal pressure by a stress calculation apparatus. The stress value calculated by a temp. distribution calculation apparatus 2 is compared with a limit stress value by an objective value setting apparatus 4 to set an objective value used in controlling an object causing the generation of stress. A control apparatus 5 controls objective quantity so as to set the same to the objective value set by the setting apparatus 4. In this case, the calculation of temp. distribution is performed from the atmospheric temp. and heat conductivity of the single surface not insulated from heat of the object and the calculated value is corrected by suing the actually measured temp. of the heat-insulated surface to obtain temp. distribution near to actual one and, by this method, thermal stress can be accurately monitored.
Patent JP-S56123371-A (JP)
Title: Enameled bathtub
Inventor: NAKATANI MASANOBU
IPC: C23D5/00
Filed: 1980-02-28
Abstract: PURPOSE: To give a lacquerlike appearance of an excellent design to the titled bathtub by sprinkling mica powder on the hot enamel layer of the bathtub base immediately after melt sticking enamel, reheating the base, and applying transparent enamel frit as cover coat.  
     CONSTITUTION: Ground coat 2 is applied to casting base 1 of the bathtub, and base 1 is heated to the necessary temp. in a heating furnace. Heated base 1 is taken out of the furnace, and simultaneously ordinary colored enamel frit blended with pigment is applied to form colored enamel layer 3. While layer 3 is at a hot semimolten state, mica powder is sprinkled on layer 3 like lacquer and stuck. Base 1 is put in the furnace again and heated to a temp. slightly below the melting temp. of the frit. By this heating sprinkled mica powder layer 4, 4... changes the color variously. Base 1 is then taken out of the furnace, and simultaneously transparent enamel frit is applied to layer 4 and melt stuck to form transparent enamel layer 5. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H01201182-A (JP)
Title: Sonar display device
Inventor: TANNO MASAYUKI
IPC: G01S7/536
Filed: 1988-02-05
Abstract: PURPOSE:To easily recognize the levels of input video signals from targets from the degree of the coloration of a video on a display by composing a signal of respective video output signal and displaying it on a color CRT. CONSTITUTION:This sonar display device is so constituted that the output of a 1st threshold value comparison control circuit 5 is inputted to a 1st color video signal generating circuit 7 and the output of a 2nd threshold value comparison control circuit 6 is inputted to a 2nd color video signal generating circuit 8. Then the brightness of a color image on the CRT display device is higher and higher as the signal levels from the respective threshold comparison control circuits are higher and higher. A 1st color video signal and a 2nd color video signal which are thus obtained are put together by a composing circuit 9 and applied to the CRT display device 10 to displays the color image on its screen. An input video signal higher than a threshold value is displayed with enough brightness to maintain its level information (even if the threshold value is varied) and the level is easily recognized from the degree of coloration of the image.
Patent JP-H08223049-A (JP)
Title: Signal coding method and device, signal decoding method and device, information recording medium and information transmission method
Inventor: SONOHARA MIFUYU
IPC: G10L19/00
Filed: 1995-02-14
Abstract: PURPOSE: To improve the coding efficiency and to prevent the occurrence of pre-echoes without complicating a signal coding device by converting a waveform signal into plural frequency components and then coding the control information used for the gain control and also those frequency components. CONSTITUTION: A signal coding device consists primarily of a window circuit 32, an attack part detection circuit 33, a gain control circuit 34, a forward spectrum conversion circuit 35, a normalization/quantization circuit 36, and a coding circuit 37. When a waveform signal is coded, an attack part where the levels of elements of the waveform signal suddenly rise is detected. Then one of plural gain controlled variables expressed in two prescribed powers is adaptively selected in response to the characteristic of the waveform signal. This selected gain controlled variable is used to give the gain control to at least those waveform elements preceding the attack part. Then the waveform signal is converted into plural frequency components, and the control information used for the gain control and these frequency components are coded.
Patent JP-H04251808-A (JP)
Title: Light input/output structure of semiconductor optical resonator
Inventor: TANAKA HIDENAO
IPC: G02B6/12
Filed: 1991-01-28
Abstract: PURPOSE:To realize the light input/output structure of the semiconductor optical resonator where a constant quantity of light is guided out from a mirror except for the end surface of the semiconductor optical resonator and also made incident. CONSTITUTION:In the light input/output structure of the semiconductor optical resonator consisting of a mirror 13 for light input and output, two photosemiconductors 14 and 15 which have optical paths incident on the mirror 13 at an angle smaller than the angle of total reflection, and two mirrors 19 and 20 which bend the optical paths from the semiconductor optical resonator to these optical waveguides 14 and 15, a light input/output part is provided halfway in the optical resonator, so input light and output light are coupled in the longitudinally direction of the optical resonator and the light input/output characteristics are determined by the reflection factor of the light input/output mirror, so that a stable constant quantity of input and output light can be obtained except on the end surface mirror.
Patent JP-S59151055-A (JP)
Title: Image processing device of flaw pattern in magnetic particle inspection
Inventor: MITSUYOSHI TERUMASA
IPC: G01B11/00
Filed: 1983-02-17
Abstract: PURPOSE:To enable detection without errors in a flawed part by forming a synthesized image in which a background is erased from the continuously photographed flaw pattern by magnetic particles. CONSTITUTION:When the negatives P1, P2- on which the flaw patterns of magnetic particles are continuously photographed are superposed, the parts of a flaw 4 overlap and the magnetic particles move in the other parts and therefore the other parts do not overlap. If the negatives P1, P2- are photographed in the overlapped state, only the part of the flaw 4 appears and the synthetic image in which the part of the background is erased is formed on a negative Ps. As a result, the flaw part is detected without any error.