baber/WOPTO huggingface dataset:
Patent JP-H04333243-A (JP)
Title: Iii-v compound semiconductor device
Inventor: SHIMIZU MASABUMI
IPC: H01L29/20
Filed: 1991-05-08
Abstract: PURPOSE:To improve the gate breakdown strength of an AlInAs/InGaAs HEMT by a method wherein an electron transit layer is made to adjoin a gate Schottky layer and is arranged. CONSTITUTION:This HEMT is a high-electron mobility transistor formed using an I-type InGaAs electron transit layer 5 provided over a semi-insulative InP substrate 1 and the heterojunction modulation doped structure of an N-type AlInAs electron supply layer and the transistor has the so-called reverse HEMT structure, wherein the I-type InGaAs layer (the electron transit layer) 5 formed over an N-type AlInAs layer 3 making to interpose an I-type AlInAs layer 4 between the layers 3 and 5 is installed, as shown in the diagram. The transistor is characterized by having a P-type AlInAs layer (a gate Schottky layer) 6a between the layer 5 and a gate electrode 8. The AlInAs/InGaAs HEMT capable of ensuring a gate breakdown strength can be realized.
Patent JP-S585009-A (JP)
Title: Single mixer
Inventor: SAKA HIROSHI
IPC: H03D9/06
Filed: 1981-06-30
Abstract: PURPOSE:To obtain performance of a mixer whose noise is low, extending over a wide band, by providing an intermediate frequency obstructing circuit on a main line. CONSTITUTION:A high frequency signal inputted from a terminal 1 is propagated through a main line 2, and is applied to a mixer diode 3. On the other hand, a local oscillating signal inputted from a terminal 4 is coupled with the main line 2 through a local oscillating BPF5, and is applied to the mixer diode 3. An output of an intermediate frequency signal is fetched from a terminal 8 through a low-pass filter 6. Onto the main line 2, an intermediate frequency signal obstructing circuit 9 which shows a passing characteristic against a high frequency signal, but shows open-circuit impedance against an intermediate frequency signal is connected, and in the vicinity of this intermediate frequency signal obstructing circuit, a low-pass filter 10 of a terminal open-circuit is connected in parallel to the main line 2. A distance between an open terminal of the low-pass filter 10 of a terminal open-circuit and the mixer diode 3 is set to 1/4 wavelength of the intermediate frequency signal.
Patent JP-H044222-A (JP)
Title: Raw material for optical equipment
Inventor: SHIGEMATSU KAZUYOSHI
IPC: C08G64/00
Filed: 1990-04-20
Abstract: PURPOSE:To provide the subject raw material comprising a polycarbonate containing two kinds of specific repeating units and having a specified viscosity- average mol.wt., having small optical anisotropy and depressed in the generation of the birefringenence of molded products thereof. CONSTITUTION:The objective raw material comprises a polycarbonate resin containing repeating units of formulas V and VI in a formula V/(V+VI) repeating unit (mole) ratio of 0.05-1 and having a viscosity-average mol.wt. of 12000-25000 and, if necessary, various additives, etc., the polycarbonate being prepared by reacting one kind or more of dihydric phenols of formula I (R<1>, R<2> are 1-6C alkyl, pheny; R<3> is 1-6C alkyl, 6-12C aryl) and one kind or more of dihydric phenols of formula II [R<4>, R<5> are H, 1-6C alkyl, cyclohexyl, etc.; X is single bond, a group of formula III (R<6>, R<7> are H, 1-6C alkyl, etc.) or a group of formula IV (n is 4-8)] with a carbonate ester-forming compound (e.g. phosgene).
Patent JP-S61260456-A (JP)
Title: Tape player
Inventor: AKITA KAZUNORI
IPC: G11B15/30
Filed: 1985-05-13
Abstract: PURPOSE:To switch rotational force transmission passage surely by expanding a cam face, where the first part is switched to the second part, of the first cam groove according as going way from a supporting shaft and expanding the similar cam face of the second cam groove similarly. CONSTITUTION:A cam plate idler 210 is arranged between an idler base PL 220 and a main base 100. The motion of the idler base PL 220 is controlled by cams 206 and 208 provided on the cam plate idler 210, and the cam plate idler 210 has two kinds of cam which control the motion of the idler base PL 220 and that of an idler base FF 230 and egages motions of the idler base PL 220 and the idler base FF 230 properly in accordance with reproducing and fast feeding of a magnetic tape. A shaft PL 221 as the revolving shaft of a gear PL 320 is provided on the idler base PL 220. A spring PL 222 is arranged between the idler base PL 220 and the gear PL 320. Thus, the rotational force transmission passage is switched easily.
Patent JP-S5730112-A (JP)
Title: Disk controller
Inventor: KONNO KAORU
IPC: G11B5/09
Filed: 1980-07-28
Abstract: PURPOSE:To control a disk efficiently by setting cylinder address numbers, prescribed prior to operation, to cylinder addresses. CONSTITUTION:A means of counting the current cylinder address of a head and a means 32 of storing cylinder addresses 34 prescribed on the basis of the frequency of the existence of a fault on the disk surface are provided. Then, two cylinder addresses 35 and 36 obtained from both the means are compared 33 mutually and according to the comparison result, a method of retrying when an error occurs is selected.
Patent JP-H042072-A (JP)
Title: Video camera adapter
Inventor: AMANO FUTOSHI
IPC: H01R31/06
Filed: 1990-04-18
Abstract: PURPOSE:To prevent interruption of recording images without exposing cord by providing an accommodation part inside of the back face of a camera adapter, accommodating a connector, connecting a battery cord with the body side, and covering the accommodation part with a lid. CONSTITUTION:An opening 12c is formed in the back face of a camera adapter 12, and an accommodation part 18 is provided between battery mounting parts 12a, 12b, wherein the opening 12c is enclosed with an accommodation lid 19. The oversurface of this accommodation part 18 is notched, and a connector 20 is provided in its inside, and there a battery cord 21 is connected. A cord 22 on the battery 15 side is drawn out of an opening in a metal fixture 17 and connected with the connector 20. Upon accommodating the connector 20 in the accommodation part 18 the lid 19 is screwed fast, and the battery 15 is mounted to the adapter 12 and the battery unit is fixed by screwing fast the metal fixture 17. Accordingly no relay cables are exposed, and interruption of image recording resulting from disconnecting by mistake can be prevented.
Patent JP-S5730150-A (JP)
Title: Head positioning mechanism of magnetic disk device
Inventor: KOMATSUZAKI TOSHIAKI
IPC: G11B21/10
Filed: 1980-07-28
Abstract: PURPOSE:To reduce troubles by simplifying constitution by providing magnetic pole teeth to a magnetic-head supporting moving element and a stator which has counter magnetic pole teeth. CONSTITUTION:A disk 1 is turning as shown by an arrow Q, and on its surface, information tracks are formed concentrically at a prescribed pitch. When a magnetic head 2 is position at one track, a moving element 3 is driven as shown by an arrow R. Namely, magnetic pole tooth groups 31 and 33 provided to the moving element 3 are applied with magnetic suction force and magnetic repulsion force from counter magnetic pole tooth groups 61 and 62 provided to stators 4 and 5 respectively to move linearly in the radius direction of the disk 1 immediately.
Patent JP-S63268096-A (JP)
Title: Warning signal transmitter having ground impedance compensated
Inventor: MATSUNO TATSUJI
IPC: G08C19/02
Filed: 1987-04-27
Abstract: PURPOSE:To compensate automatically a drop in received signal voltage by increasing a transmission output for a specific time when the leak current of a low frequency signal larger than a specific value is detected. CONSTITUTION:A voltage induced between a cable run 1 and a grounding point (E2) by applying a sent signal of low frequency to the cable run is denoted as (e) and the received voltage of a receiver 7 is denoted as V. Then this received voltage V becomes lower because of increases in grounding resistance (r) and electrostatic capacity (c) to the ground and a decrease in ground insulation resistance R. Further, a feedback current (i) based upon the low-frequency signal voltage (e) fed back to a grounding line 1 increases as a leak current (i) as the parallel impedance of the ground insulation resistance R and electrostatic ground capacity decreases. Consequently, the output of a current transformer which passes through the grounding line 1 is applied to a detecting circuit 10 and applied to the system consisting of a filter F, a rectifying circuit DET, and a comparing circuit COMP for a reference value i0; when the output (i) of the filter F increases above the specific value i0, the transmission output is increased to compensate the drop in the received voltage.
Patent JP-H06295492-A (JP)
Title: Brake mechanism for motor
Inventor: SAKASHITA HIROSHI
IPC: G11B15/22
Filed: 1993-04-06
Abstract: PURPOSE:To obtain a brake mechanism which is inexpensive and has stable brake performance. CONSTITUTION:A brake surface 15 is formed on the outer periphery of a rotor case 1. A brake lever 22 to which a brake pad 23 is fixed is provided on the outer periphery of the rotor case 1. The brake pad 23 acts to come into contact with or separate from the brake surface 15 of the rotor case 1. Grooves are formed on the brake surface 15, so that the contact area of the brake surface 15 with the brake pad 23 is increased and brake pressure in the case of obtaining the same brake performance as that of a conventional brake is reduced in comparison with the conventional structure.
Patent JP-H06286089-A (JP)
Title: Biaxially oriented composite polyethylene naphthalate film for metal thin film magnetic recording medium
Inventor: OKAMURA YUJI
IPC: B29K67/00
Filed: 1993-04-07
Abstract: PURPOSE:To perform higher density recording by utilizing high picture quality of a metal thin film magnetic recording medium and high strength, high heat resistant characteristics of fundamental characteristics of polyethylene-2,6- naphthalate. CONSTITUTION:A biaxially oriented composite film has a layer A made of polyethylene-2,6-naphthalate containing germanium compound and magnesium compound, and a layer B made of polyethylene-2,6-naphthalate containing inactive solid fine particles and laminated on the layer A. The layer A is covered with a coating film in which a discontinuous film or fine particles having a mean particle size of 3nm or more or both exist in such a manner that its surface roughness is 5nm or less. The layer B is formed of polyethylene-2,6- naphthalate containing 0.001-1wt.% of particles having mean particle size of 0.1-0.5mum and a biaxially oriented composite polyethylene naphthalate film for a metal thin film magnetic recording medium has a surface having surface roughness of 25nm or less.
Patent JP-S5438272-A (JP)
Title: Centrifugal, countercurrent contact apparatus
Inventor: FUJIWARA KIYOSHI
IPC: B01J19/00
Filed: 1977-08-31
Abstract: PURPOSE: To excercise stirring effect and to make the diameters of dispersed particles smaller so as to increase contact efficiency, by countercurrent contact of lighter liq. introduced to the peripheral part of a rotary drum with heavier liq. introduced to the central part of the drum due tocentrifugal force caused by the rotation of the rotary drum. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H08298041-A (JP)
Title: Switch
Inventor: NAKAJIMA TOKIO
IPC: H01H1/60
Filed: 1995-04-27
Abstract: PURPOSE: To ensure an input operation even if a close command contact is contaminated by providing a signal transmission switching means for normally carrying an activating current to an input coil through a switching element and carrying an input current according to an input signal. CONSTITUTION: When a pure close command contact 12 is ON, a prescribed voltage is generated in a voltage dividing resistance 13, and an input signal is transmitted from an input signal transmitting means 14. A signal transmission switching means 16 then continues the means 14 to a switching element 17, and an input current is carried to an input coil 18 to make a switch. Although no prescribed voltage is generated in the resistance 13 even by the ON of the contact 12 when the surface of the contact 12 is contaminated with an oxidized film, and no input signal is transmitted from the means 14, the means 16 continues an activation signal transmitting means 15 to the element 17. Thus, an activating current is carried to the contact 12 through the coil 18 by the ON of the contact 12 to activate the surface, and a normal input operation can be thus performed.
Patent JP-H06296235-A (JP)
Title: Facsimile equipment
Inventor: KOIKE KAZUMASA
IPC: H04N1/40
Filed: 1993-04-07
Abstract: PURPOSE:To obtain a satisfactory multilevel output picture where the high resolution of a multilevel printer is put to practical use in the case tha this multilevel printer whose resolution is higher than the communication density is provided by selecting the density of a noticed picture element depending on whether multilevel picture data is a halftone picture or a thresh picture. CONSTITUTION:The binary picture received by a communication part 4 is inputted to a matrix part 12 from an input part 11 of a picture conversion part 3 to form an mXn matrix having the noticed picture element as the center. An average part 13 obtains the average value of constituting picture elements, and a smoothing SU part 14 outputs a prescribed intermediate density or a multilevel data value as the density of the noticed picture element. A selecting part 15 takes the code, which is discriminated by the protocol for data reception, as the select signal and selects the average value from the average part 13 in the case of a halftone picture but select multilevel data from the SU part 14 in the case of a thresh picture and outputs it from an output part 16. Thus, the picture whose resolution is higher than the communication density is obtained.
Patent JP-S5227629-A (JP)
Title: Device for arranging movie film
Inventor: TAKECHI MORIO
IPC: G11B27/06
Filed: 1975-08-27
Abstract: PURPOSE: To provide an arranging device for a small size movie film capable of shifting a sound signal antecedent by a constant distance to a position adjacent to an image or a sound signal recorded in the position adjacent to the image to the antecedent position. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H11281688-A (JP)
Title: Constant-current source and resistancemeasuring device
Inventor: TERAJIMA TAKAYUKI
IPC: G01R27/02
Filed: 1998-03-30
Abstract: PROBLEM TO BE SOLVED: To provide a constant-current source that can supply a constant current without being affected by the fluctuation of load conditions while limiting the maximum output voltage to a specific voltage or less. SOLUTION: The constant-current source 3 is provided with an error amplification circuit 11 for controlling an output current to a constant current by amplifying the differential voltage between a feedback voltage VFB and a reference voltage VR according to an output current that is outputted to a load circuit 2, and a voltage-dividing circuit 17 for limiting the maximum output voltage to a first specific voltage by dividing the output voltage of the error amplification circuit 11. The constant-current source 3 is provided with voltage- limiting circuits 13 and 14 for limiting the output voltage of the error amplification circuit 11 to a second specific voltage or less when the output voltage of the error amplification circuit 11 exceeds a second specific voltage that is at least a higher voltage than the first specific voltage.  Then, the voltage- dividing circuit 17 divides the output voltage of the voltage-limiting circuits 13 and 14, thus limiting the maximum output voltage to the first specific voltage.
Patent JP-H0847427-A (JP)
Title: Frame structure with large number of rod members
Inventor: PAURU SHIEERAA
IPC: A47B96/14
Filed: 1995-04-27
Abstract: PURPOSE: To make it possible for a curvedly extending arrangement positioning an axis with one hole within a flat surface formed by two main axis and displacing the axis with one hole by an angle not to exceed a specific value against one main axis relating to a connection member having several holes arranged on the main axis which are in vertical to one another. CONSTITUTION: A pole member 1 made, for example, of metal, as a connection member, has six holes 2.1-2.6 equipped with inner screws. Five holes of the six are on three pairs of main axis X, Y, Z arranged relatively at right angles. The holes 2.1 and 2.3 conform to each other on the X axis and so the holes 2.5 and 2.6. On the Y axis only the hole 2.4 is installed and the hole 2.2 is installed on an axis S different from the main axis. The axis S is positioned on a flat surface formed by the axis Y and Z and forms an angle with Y axis not exceeding 20.5 deg.. Thus, the hole 2.2 forms an angle with the hole 2.6 not exceeding 69.5 deg. and the hole 2.5 forms an angle with the hole 2.5 not exceeding 110.5 deg. while the hole 2.2 forms an angle of 90 deg. with the hole 2.3.
Patent JP-S5228181-A (JP)
Title: Wastes compressing disposal apparatus
Inventor: MIYAZAKI YUKIO
IPC: B65F1/08
Filed: 1975-08-27
Abstract: PURPOSE: Safety device for wastes compressing disposal apparatus comprises fixing a movable compressing vessel to the apparatus body with a lock mechanism which permits safety compressing operation. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H02284359-A (JP)
Title: Manufacture of thermo-battery and positive-electrode active material for thermo-battery
Inventor: HARAGUCHI KAZUNORI
IPC: H01M4/48
Filed: 1989-04-24
Abstract: PURPOSE:To raise the internal temperature of a battery to a high temperature region and lengthen duration during high-efficiency discharge by containing 3-15wt.% molybdenum formed as molybdenum sulfide in positive-electrode active material. CONSTITUTION:An element battery 4 is constituted by a positive electrode layer 1, a negative electrode layer 2 and an electrolytic layer 3 and the positive electrode layer 1 has molybdenum sulfide with the mixture ratio of molybdenum being 3-15wt.% contained in iron disulfide as positive-electrode active material. Accordingly, as discharge reaction proceeds on, molybdenum metal is produced in positive-electrode combining agent, however the production of the molybdenum metal first occurs in the vicinity of a positive-electrode collector where the discharge reaction proceeds therefore to cover the face in contact with the iron disulfide of the collector, so that the deterioration of the iron disulfide due to reaction on the collector, caused in a high temperature region, can be prevented. As the produced molybdenum metal has better electronic conductivity than iron, collective resistance can be also reduced during high-efficiency discharge and short circuit resulting from the occurrence of dendrite is hardly caused. It is thus possible to raise the internal temperature of a battery to a high temperature region and lengthen duration during high-efficiency discharge.
Patent JP-S58223695-A (JP)
Title: Device for vapor-phase epitaxial growth
Inventor: KOBAYASHI NAOKI
IPC: H01L21/205
Filed: 1982-06-18
Abstract: PURPOSE:The tube for introducing the compound of an element of group V into the reaction tube is made to pass through inside the heating means which is set inside the reaction tube to promote the thermal decomposition of the hydride of the V-group element and improve the reaction efficiency in the vapor-phase growth of the III-V group compound semiconductor. CONSTITUTION:At first, valves 30, 40 are opened to introduce trimethylindium diluted with hydrogen from the tube 13 and phosphine from the tube 12 into the reaction tube 1 which is heated with RF coil 10. The phosphine introduced from the tube 12 is heated, when it passes through in the carbon pedestal 11 which is heated by action of the RF coil 10, suffering thermal decomposition into a gas containing a sufficient amount of P4. The resultant gas passes through the inlet 12a of the tube for introducing the starting material of V-group element and goes up, as shown by the black arrows, inside the pedestal 11 at the outside of the tube 12, mixes with the gas of organometallic compound of group III. Then, the mixed gas reaches on the base plate 2 by running as shown with the black and white arrows to effect the growth of InP.
Patent JP-H06314345-A (JP)
Title: Cpu series system interface procedure and its device
Inventor: RIN CHIN YUAN
IPC: G06F15/78
Filed: 1993-04-30
Abstract: PURPOSE: To provide series interface processing method/device for reducing control pins in CPU and for simplifying electric line connection. CONSTITUTION: In CPU interface processing, a mix series signal containing a data pulse signal and a trigger signal, which are alternately outputted by CPU 41, is converted into a trigger(TGR) signal separated from parallel data signals D0-D7 and the mix series signal by a series-parallel data conversion processing and a debounce processing. Thus, the number of the pins connected with a prescribed peripheral circuit device 43 of CPU 41 can considerably be reduced.
Patent JP-S63268922-A (JP)
Title: Intake device of engine
Inventor: HITOMI MITSUO
IPC: F02B27/02
Filed: 1987-04-27
Abstract: PURPOSE:To improve the charging efficiency by connecting a closed passage part with an intake passage communicating to each intake port of each cylinder whose intake cycle is not overlapped. CONSTITUTION:A closed passage part 6b or 7b whose terminal edge is closed is connected into an intake passage 6 or 7 communicating to each intake port 4a-4c or 4d-4f of each cylinder 3a-3c or 3d-3f whose intake cycle is not overlapped. The pressure wave propagated to the closed passage parts 6b and 7b from an intake port is reflected free from the reversal of positive and negative at the closed edge, superposed with the pressure wave of another cylinder. Therefore, the dynamic effect of intake can be developed, and the charging efficiency can be improved.
Patent JP-H04256915-A (JP)
Title: Automatic focus adjustor
Inventor: UENAKA YUKIO
IPC: G03B13/36
Filed: 1991-02-08
Abstract: PURPOSE:To take an in-focus photograph at all times by driving a lens when a discrimination means decides that a focusing lens is in an in-focus state. CONSTITUTION:A CPU 3 calculates a defocusing quantity with measurement data obtained by a range finding sensor 1 and calculates the relative moving direction and moving speed of the object in the optical-axis direction from the defocusing quantity. Then a lens driving circuit 4 is controlled according to the calculation result of the CPU 3 to drive the focusing lens 100 to a position where focusing is obtained at a position where the object is to move a specific time later. A driving control means performs the lens driving even when the discrimination means decides that the focusing lens 100 is in the in- focus state.
Patent JP-S5329709-A (JP)
Title: Production of magnetic head
Inventor: FUJIOKA YOSHIHARU
IPC: G11B5/17
Filed: 1976-08-31
Abstract: PURPOSE: To facilitate volume productivity and reduction in size by alternately laminating and forming insulation layers and conductive films on the periphery of a head core along its axial direction and forming windings with the conductive films thus made. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S58223396-A (JP)
Inventor: URAJIMIIRU IOSHIFUOUITSUCHI RI
IPC: H05K1/02
Filed: 1982-06-18
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。