baber/WOPTO huggingface dataset:
Patent JP-H04291509-A (JP)
Title: Dc compensation circuit
Inventor: TAKANO ISAMU
IPC: H04L25/06
Filed: 1991-03-20
Abstract: PURPOSE:To compensate a DC component of a signal whose DC component is interrupted by means of a transmission line and an AC coupling amplifier circuit or the like in a receiver in the receiver of a digital communication system. CONSTITUTION:A differentiating equalization circuit 2 generates a differentiating equalizing waveform of a binary input signal 1 subjected to DC interruption. A positive/negative output circuit 3 outputs a positive/negative output signal of the differentiating equalization circuit 2. An OR circuit 8 receives the positive and negative output signals of the positive/negative output circuit 3 via a capacitor while receiving a prescribed bias. A 1/2 frequency divider circuit 9 receives an output signal of the OR circuit 8.
Patent JP-H11261998-A (JP)
Title: Surrounding display device for vehicle
Inventor: NAKAGAWA NAOKI
IPC: B60R1/00
Filed: 1998-03-06
Abstract: PROBLEM TO BE SOLVED: To immediately recognize which surrounding part around a vehicle is shown by at least one piece of display information of plural imaging devices when displaying the surroundings of the vehicle through these imaging devices. SOLUTION: Video cameras 10-40 photograph the matually different surrounding parts around the vehicle. Based on the ON operation of any one of operating switches SWL1 , SWL2 , SWR1 and SWR2 , a microcomputer 60 selects the photographic data of the video cameras 10-40 through a photographic data selector circuit 50 and composites the picture of these selected photographic data with a character specifying the surrounding part corresponding to these photographic data. A liquid crystal panel 80 displays this composite picture.
Patent JP-S56153251-A (JP)
Title: Analytical method of imidodisulfonate
Inventor: NOGUCHI TATSUHIKO
IPC: G01N31/00
Filed: 1981-04-13
Abstract: PURPOSE:To ensure a consecutive and highly precision operation from the pretretament of sample through the titration for a quantitative analysis of the imidodisulfonate, by using a device incorporating a column chromatographic tube, a crooked heating tube, a potentiometric titration bath and others. CONSTITUTION:The imidodisulfonate that is produced when the nitrogen oxide contained in the boiler exhaust gas, etc. is absorbed to the aqueous solution containing the iron salt and sulfite is quatitatively analyzed by supplying the sample containing the imidodisulfonate and the KMnO4 solution onto the glass filter 1 of the column chromatographic tube 4. Then the air is introduced through the side tube 2 and stirred to oxidize the reductive material in the sample solution, and then made to pass through the tube 4 filled with the ion exchange resin 7. Thus an ion exchange is carried out. Then the sample is made to pass through the crooked heating tube 5 to hydrolyze the imidodisulfonic acid into the sulfamic acid. After this, the sulfamic acid is titrated in the potentiometric titration bath 6 for determination.
Patent JP-S58173874-A (JP)
Title: Amorphous si solar battery
Inventor: TANABE HIDEO
IPC: H01L31/04
Filed: 1982-04-05
Abstract: PURPOSE:To obtain a solar battery of excellent characteristics with a sufficiently flat surface and improved insulating feature by a method wherein a flexible and heat-resistant substrate is coated with a thin film of heat-resistant resin whereon electrodes and an amorphous Si film are formed into lamination. CONSTITUTION:A 100mum-thick stainless steel substrate 1 is so polished as to contain no difference in level larger than 0.1mum and is rotationally coated with heat-resistant resin to be subjected to baking for the formation of a 0.1-100mum- thick thin film 2. The substrate 1 is subjected to sputtering for the formation of lower electrodes 3a-3e that are to be arranged at prescribed intervals. The substrate 1 is then kept at temperatures near 250 deg.C and is exposed to plasma CVD to build an amorphous Si film 4 for the formation of a lamination in the order of P-I-N or N-I-P. An upper transparent electrode 5 is attached according to a prescribed pattern, opposed to the electrodes 3a-3e and with ends straddling over adjoining electrodes 3a-3e. The entirety is coated with an SiO2 film 6 for the completion of a serially connected amorphous Si solar battery. With the titled device being thus designed, a high quality solar battery is obtained rigid against bending and free of insulating defects between cells.
Patent JP-2000251235-A (JP)
Title: Processing method for head slider
Inventor: YOKOI MITSURU
IPC: G11B5/60
Filed: 1999-03-03
Abstract: PROBLEM TO BE SOLVED: To omit processing for obtaining a curved surface by polishing, thereby improving mass-producibility, by forming a mask on a surface of a head slider to perform an etching process and, after the etching process, performing a powder particle injection process with the mask being remained to process an edge portion of the head slider into a curved surface. SOLUTION: A work 50 corresponding to a plurality of head sliders, in which a coil, a magnetic circuit, an MR device, and an electrode are formed on one side of a disk plate made of a hard ceramic, are cut out for each device row of the thin film pattern. A mask 51 is formed on the surface of the work 50, and an etching process is performed therefor. Thereafter, a solid-gaseous bi- phase flow in which abrasive materials are scattered into high-pressure air is injected from a nozzle 12 while the mask is still remained. The abrasive materials are fine particles with an average particle diameter of 1 to 6.7 μm. The entire air bearing surface is simultaneously processed into a curved shape by scanning the nozzle 12 in the direction indicated by an arrow. Thus, mass- producibility can be enhanced, and improved characteristics can be realized.
Patent JP-S58173933-A (JP)
Title: Transmission system of code signal
Inventor: YAMADA TSUKASA
IPC: H04L27/00
Filed: 1982-04-05
Abstract: PURPOSE:To improve the effect of error correction, by multiplexing a reception signal, outputting a level having high probability of error generation as a missing bit, calculating a parity bit and restoring the missing bit. CONSTITUTION:An A/D converter 608 converts a character code signal into a digital signal 609 in response to the level in the timing of a clock signal 607. A DMA (Direct Memory Access) controller 610 transfers a signal 611 comprising a parallel signal equivalent to one block and line information to an RAM 612. In case of the transfer, DMA vertical/horizontal synchronizing signals 604, 605 are used for driving. At the same time when the DMA transfer is finished, a CPU 613 discriminates data on the RAM 612 whether it is a missing bit or not, and a reception binary signal (discriminated as missing) confirmed as 0, 1 and regarding the levels 7, 8 as the discriminating levels is allocated on another RAM. When it is discriminated as the missing bit, the discriminated data is set to ''1'', and codes are decoded while allowing the received binary signal to correspond to the missing discrimination data.
Patent JP-S56155028-A (JP)
Title: Preparation of optical glass
Inventor: MATSUYAMA IWAO
IPC: C03B37/00
Filed: 1980-04-28
Abstract: PURPOSE:To prepare a glass block suitable for optical use in high yield, by hydrolyzing Si(OCH3)4 with water of adjusted pH, and heat-treating the resultant porous silica gel material. CONSTITUTION:A raw material Si(OCH3)4 is hydrolyzed with water of pH adjusted to 9.5-11.5 with NH3, etc. to prepare a porous easily sinterable silica gel material. The resultant silica gel material is then heat-treated in an oxidizing gas atmosphere, an atmosphere containing chlorine or vacuum or He atmosphere and vitrified. According to the method, a massive glass of high silica content for optical use can be obtained readily.
Patent JP-H10236266-A (JP)
Title: Occupant crash protection device
Inventor: HASHIMOTO YOICHI
IPC: B60R21/16
Filed: 1997-02-24
Abstract: PROBLEM TO BE SOLVED: To reliably actuate an occupant crash protection device according to a seat position by supplying it to a control means by detecting a moving distance of a seat, detecting that the seat is positioned in the forefront part or the rearmost part, and outputting a setting signal to the control means, by a seat position detecting means. SOLUTION: A moving distance sensor 30 outputs it by calculating an absolute position of a seat by an absolute position detecting circuit 31 on the basis of output of the pulse number according to a moving distance of the seat of a vehicle and outputs from a seat moving direction detecting switch 32. When the switch 32 to move the seat in the longitudinal direction is brought down rightward, the seat is moved forward by a motor, and when it is brought down leftward, the seat is moved backward. A control means is formed of transistors 21 to 23, a control circuit 20, the absolute position calculating circuit 31 or the like.  A moving distance of the seat is received by the absolute position detecting circuit 31 as a pulse signal of a moving distance sensor 30, and when a zero position signal is supplied from a zero position signal generating part, it is judged that the seat exists in the forefront part, and in the case of a maximum position signal, it is judged as the rearmost part, and a counting result is set to a maximum value.
Patent JP-S52138915-A (JP)
Title: Magnetic head
Inventor: OGAWA KOUICHI
IPC: G11B5/187
Filed: 1976-05-14
Abstract: PURPOSE:To prevent influence given by a next track at the time of entry and reading by fitting shield material at the side of a head gap unit.
Patent JP-H04228288-A (JP)
Title: Composite solder/polymer paste and method for producing the same
Inventor: UU-SON HOWAN
IPC: B23K35/363
Filed: 1991-02-28
Abstract: PURPOSE: To provide the meltable alloy powder/polymer composite paste which is prepared by reinforcing the metal alloy powder with a polymer and partially fusing to form an electroconductive solder connection of an interconnected network structure. CONSTITUTION: A thermoplastic polymer, which has a softening temp. equal to or lower than the reflow temp. and is stable at the reflow temp., is dissolved in a volatile organic solvent having a boiling point which is higher than the melting point of the alloy powder filler and is lower than the reflow temp of the composition. A transient fluxing agent is used as a metal-oxide reducing agent having a boiling point higher than the melting point of the alloy powder filler and lower than the reflow temp. Reflow of the paste is carried out in substantial absence of the fluxing agent and the solvent. The electroconductive solder connection of the interconnected network structure is formed by reinforcing the metal alloy powder with the polymer and partially fusing. By this method, the paste free from expensive noble metal fillers or harmful lead metal filler can be prepared.
Patent JP-H02233745-A (JP)
Title: Adhesive composition for hemming part of automotive body
Inventor: SHIBATA SEISHI
IPC: C09J127/04
Filed: 1989-03-08
Abstract: PURPOSE:To obtain an adhesive composition excellent in flexibility, bonding durability, rust preventing properties, etc., and useful for hemming parts of automotive bodies by blending a vinyl chloride-based polymer with a plasticizer, epoxy resin, latent curing agent and filler at a specific ratio. CONSTITUTION:An adhesive composition, consisting of (A) 100pts.wt. vinyl chloride-based polymer, (B) 20-100pts.wt., preferably 30-80pts.wt. plasticizer (e.g. di-2-ethylhexyl phthalate), (C) 10-80pts.wt., preferably 15-60pts.wt. epoxy resin (e.g. glycidyl ester type epoxy resin), (D) 3-40pts.wt., preferably 5-30pts.wt. latent curing agent (e.g. dicyandiamide) and (E) 30-100pts.wt., preferably 30-80pts. wt. filler (e.g. calcium carbonate) and obtained by finely dispersing the total amount of the components (D) and (E) in 20wt.% component (B) and the total amount of the component (C), then kneading and blending the resultant dispersion with a plastisol consisting of the total amount of the component (A) and the residual component (B).
Patent JP-H05257020-A (JP)
Title: Production of substrate type directional coupler
IPC: G02B6/122
Filed: 1992-03-13
Abstract: PURPOSE:To control the gap of the coupling parts of optical waveguides with high precision, to reduce variance in characteristics, and to form the coupling parts which have plural branching ratios by using one kind of mask. CONSTITUTION:The 1st optical waveguide 24 and a clad layer 23 are formed on a substrate 22 and the 2nd optical waveguide 25 is formed on a clad layer 23 so that the coupling part of the 2nd optical waveguide 25 is parallel to the coupling part of the 1st optical waveguide 24. Further, the 1st optical waveguide 24 and 1st clad layer 23 are formed on the 1st substrate and the 2nd optical waveguide 25 and a 2nd clad layer 38 are formed on a 2nd substrate respectively; and the 1st substrate and 2nd substrate are put opposite each other and positioned so that the coupling part of the 1st optical waveguide 24 and the coupling part of the 2nd optical waveguide 25 are parallel to each other. Then, the 1st clad layer 23 and 2nd clad layer 38 are stuck together in one body.
Patent JP-H07260631-A (JP)
Title: Abnormality detector
Inventor: KAJI HIROSUKE
IPC: G01M13/04
Filed: 1994-03-25
Abstract: PURPOSE:To provide an abnormality detector for detecting AE from a shaft rotating at high speed with high sensitivity. CONSTITUTION:The abnormality detector comprises a nonrotating annular body 5 being applied to the outer periphery 2a of a rotary shaft 2 through an oil film 3, and an AE sensor 6 fixed to the annular body 5. The rotary shaft 2 rotates at high speed while the AE sensor 6 remains stationary. Since the AE sensor 6 detects AE from the rotary shaft 2 only through the oil film 3 and the annular body 5, attenuation of the AE is suppressed as compared with the case where the AE is detected through a rolling bearing 7.
Patent JP-S55150186-A (JP)
Title: Data transfer system of magnetic bubble memory device
Inventor: INAGAKI HIROSHI
IPC: G11C19/08
Filed: 1979-05-09
Abstract: PURPOSE: To make the volume of transfer data unlimited by reading address data by making it possible to exercise individual control by providing a data bus where read and write data are transferred and an address bus for transferring address information.  
     CONSTITUTION: Once address information is input to address register 15, magnetic bubbles are actuated to transfer address information to read enable generating circuit 14, and bus driver 16 is put into operation. Then, read-write unit 17 reads data on magnetic bubble chip 18 and when the signal and an enable signal meet AND conditions, data are stored in register 12 via driver 16 and address bus 3. The outputs of registers 12 and 15 are compared to each other by comparing circuit 13 and written on chip 18 by write unit 17 by way of register 11 and data bus 4 and data on chip 18 are read by read unit 17 and written in register 11 via data bus 4. Therefore, the volume of transfer data is unlimited by reading address data. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H10242065-A (JP)
Title: Method of manufacturing and patterning polysilicon layer and layer structure
Inventor: DREYBRODT JOERG DR
IPC: C23C16/24
Filed: 1998-02-20
Abstract: PROBLEM TO BE SOLVED: To improve the patterning, its surface property and adhesion to adjacent layers, by stopping feeding of a coping compd. to a process gas after lapse of desired deposition time and attaining desired doping element concn. SOLUTION: A P-doped polycrystal Si layer is deposited on a gate oxide film of a wafer by the chemical vapor deposition, using SiH4 as a starting material for the polycrystal Si and PH3 added to a process gas for doping. To obtain a good doping homogeneity over the entire wafer, PH3 is first 10% and then 100% added and this is repeatedly alternated at e.g. every 2-3sec, until desired thickness of the deposited layer is reached. The adding of PH3 to the process gas is stopped and an undoped polysilicon layer is deposited on the doped polysilicon.
Patent JP-H01230465-A (JP)
Title: Light-transmitting spinel sintered material and production thereof
Inventor: SHIBATA KENICHIRO
IPC: C04B35/44
Filed: 1988-03-09
Abstract: PURPOSE:To promote high-density formation and to make a thick material as an infrared light transmitting window exhibit excellent light transmission, by further subjecting a high-density sintered material of magnesia-alumina spinel to hot static pressure treatment at high temperature under high pressure. CONSTITUTION:Fine magnesia-alumina spinel powder having >=99.9% purity and >=10m<2>/g (BET value) specific surface area is molded under static pressure of >=1.0 ton/cm<2> pressure. The molded article is sintered at multiple stages in vacuum or H2 or He atmosphere at 1,400-1,800 deg.C for 2-24 hours and made into high density of >=95% theoretical density. Then the sintered material is further subjected to hot static pressure treatment at 1,400-1,800 deg.C under 500-2,000kg/cm<2> pressure in an atmosphere of N2, Ar, O2, etc., to give a light transmitting spinel sintered material. The spinel sintered material has >=75% straight-chain percent transmission in 3mm thickness by infrared light at 3-4mum wavelength.
Patent JP-2000210345-A (JP)
Title: U-shaped pad for preventing and treating bedsore
Inventor: FUJIWARA SHOZO
IPC: A47C27/14
Filed: 1999-01-25
Abstract: PROBLEM TO BE SOLVED: To provide a U-shaped pad for preventing and treating bedsores. SOLUTION: This U-shaped pad is made of a soft material (such as sponge) and this is fitted to the buttocks and wrapped with a paper diaper so that the pressure to the sacrum, where bedsores occur most frequently, can be reduced.
Patent JP-H05225957-A (JP)
Title: Flat type fluorescent lamp device
Inventor: YOSHIOKA MASAKI
IPC: H01J61/54
Filed: 1992-02-07
Abstract: PURPOSE:To eliminate a discharge lag under darkness via the supply of electric energy to an auxiliary electrode, even when no additional space is available for a resistor or the like, by providing a conductor in such a way as sandwiching a printed circuit board. CONSTITUTION:The same copper foil as a copper foil (conductor) 41 pasted to the upper surface of a printed circuit board 3 is applied to the reverse side as well, in such a way as opposite to each other like a sandwich form. This copper foil is connected to a pair of anode lead fixing sections 31 via printed wiring connected to a positive high voltage section at the secondary side of a high-frequency transformer 5. Then, when secondary high voltage is generated and a flat type fluorescent lamp 1 is turned on, main discharge between an anode 21 and a cathode 22 is not disturbed after discharge between an electrode 23 and the cathode 22, because a line branched from the positive high voltage section and connected to an auxiliary electrode 23 is fitted with a capacitor comprising the foil 41 or the like via the board 3. Consequently, even when there is no space available for fitting a resistor, a discharge lag under darkness can be eliminated, and a viewfinder can be made compact, because the electrode 23 is fitted.
Patent JP-H08254624-A (JP)
Title: Quartz optical waveguide
Inventor: HIHARA HIROSHI
IPC: G02B6/30
Filed: 1995-03-15
Abstract: PURPOSE: To lower the light loss by connection to an optical fiber by forming a lower second clad layer and upper clad layer of the same compsn. and setting the glass temp. thereof lower than the glass temp. of a lower first clad layer. CONSTITUTION: The upper clad layer 5 having the same compsn. as the compsn. of the lower second clad layer 3 is laminated in a soot state by a flame deposition method and is vitrified. As a result, the Ge in the core layer diffused at the same speed in the lower second clad 3 and the upper clad layer 5 and a mode field is expanded to an approximately round shape at the time of heating the connecting end of the core layer 4. The light loss with another device, such as, for example, optical fiber, at the connecting end is, therefore, lessened. The lower first clad layer 2 is previously prepd. to the glass temp. lower than the upper clad layer 5, by which the amt. of the additive to lower the glass temp. is not much increased and consequently, the mechanical strength of the lower first clad layer 2 is maintained and the thermal deformation of the quartz optical waveguide is prevented.
Patent JP-S56157907-A (JP)
Title: Fluidic pressure chuck
Inventor: ITOU TERUHISA
IPC: B23B31/30
Filed: 1980-04-30
Abstract: PURPOSE: To hold a work with equal force even if the work is eccentrically placed, by arranging toward the central part of a chuck at least two holding pawls moved forward and backward by fluidic pressure cylinders.  
     CONSTITUTION: In a chuck body 2 three cylinders 4 are arranged toward its central part inner circumferentially with an equal space. A holding pawl 16 is replaceably mounted to the end of a piston 6 in the cylinder 4. For instance, in case for a work t be eccentrically placed, since presure oil chambers 18 in the three cylinders are communicated, reaction force applied to one of the holding pawls 16 in accordance with the displacement of eccentricity from a work 14 is transmitted to the rest of the two cylinders, permitting the action with a quite equal amount of holding force to the work by each of the pawls 16. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-S58172564-A (JP)
Title: Integrated circuit
Inventor: YAMADA TAKAAKI
IPC: G01R31/316
Filed: 1982-04-05
Abstract: PURPOSE:To facilitate a characteristics evaluation, deficiency analysis or the like for a main circuit by arranging a plurality of circuits in a single IC package to be so symmetrical with respect to a plurality of power source polarities that the power source polarity will be switched properly. CONSTITUTION:When a positive potential VDDA is provided to a power source terminal 6 and an earth potential GNDA provided to a power source terminal 7, a circuit 2A works and a circuit 2B is disabled as the sum of threshold voltages of FET transistors used is larger than the potential VDDA. A signal INA fed from an input terminal 3 is processed with the circuit 2A and then, taken out an output terminal 9 via transistors 4A and 8A as signal OUTA. When a positive potential VDDB is provided to the terminal 7 and a ground potential GNDB to the terminal 6, the circuit 2B works and the circuit 2A disabled. When the main circuit is to function as such intrinsically, either of the circuits and made to work. When it is to function for a characteristics evaluation or a deficiency analysis, the other circuit is made to work simply by changing the polarity of the power source.
Patent JP-S58173974-A (JP)
Title: Processing method of picture sharpening
Inventor: YAMAGUCHI SHINGO
IPC: G06T5/00
Filed: 1982-04-05
Abstract: PURPOSE:To improve the processing method of multi-value quantizing picture and to attain sharpening of picture, by applying the MTF compensation to a noted picture element when there exist one or more signals in which the noted picture element has a larger density level than a prescribed value. CONSTITUTION:Outputs of registers 102B, 102D, 102E, 102F, and 102H, that is the noted picture element E and density data of picture elements B, D, F, H positioned up/down/left/right to the E, are inputted to a discrimination circuit 106. The circuit 106 consists of four comparators 106B, 106D, 106F, 106H and an OR gate 109 taking the OR of the outputs of each comparator. The comparator 106B compares the density level difference (absolute value) ¦B-E¦ between the peripheral picture element B and the noted picture element E with a prescribed discrimination threshold value K, outputs ''1'' signal when ¦B-E¦>=K, and outputs ''0'' signal when not. The OR signal of the output signals of the comparators 106B, 106D, 106F and 106H is given to a selector 108 as the output signal of the discrimination circuit 106 from the OR gate 109.