baber/WOPTO huggingface dataset:
Patent JP-H02111224-A (JP)
Title: Overcurrent preventing circuit
Inventor: KIRA MASAKI
IPC: H02H9/02
Filed: 1988-10-20
Abstract: PURPOSE:To prevent an overcurrent at the time of power source ON by comparing a voltage value responsive to the charging state of a capacitive element with a predetermined voltage value, and controlling the opening and closing operations of switching means in response to the compared result. CONSTITUTION:Comparing control means 119 compares a predetermined voltage value to be output from voltage setting means 117 with a voltage value responsive to the charging state of a capacitive element 115, and controls the opening or closing of switching means 113 in response to the compared result. The means 113 is opened until the element 115 is charged. When the element 115 is charged, it is closed, and a resistance element 111 is short-circuited. Thus, it can prevent an overcurrent at the time of power source ON, for example, in a noise filter circuit.
Patent JP-H10111996-A (JP)
Title: Pedal device
Inventor: YAMASHITA RIICHIRO
IPC: G01L1/20
Filed: 1996-10-04
Abstract: PROBLEM TO BE SOLVED: To obtain a low-cost, high-reliability pedal device of simple constitution by forming a plane electrode of a high-conductivity material on the substrate in elastic structure of an upper electrode plate and forming a plane electrode in striped zigzag pattern of a low-conductivity material on the substrate of an upper electrode plate. SOLUTION: The upper electrode plate is formed by adhering an insulating film onto the substrate formed of a steel plate and forming an electrode pattern of a metal thin film on the insulating film. The lower electrode plate 1b is formed by adhering an insulating film 3b onto the substrate 2b of a steel plate and forming an electrode pattern of a metal thin film 4b on the insulating film 3b. A lower contact part 5b is formed in striped zigzag pattern having specific thin line width on the left side of the substrate 1b corresponding to the position of an upper contact part of the upper electrode, and the zigzag pattern is formed repeatedly along the length of the substrate 1a and extends along the length.
Patent JP-H07120632-A (JP)
Title: Manufacture of glass waveguide
Inventor: TOKUNAGA TOSHIHIDE
IPC: G02B6/13
Filed: 1993-10-22
Abstract: PURPOSE:To suppress the shrinkage of a porous glass at sintering treatment at minimum and prevent the deformation of a base, in a method for manufacturing a glass waveguide by accumulating the porous glass on the base by flame accumulation, then sintering it to form a transparent glass film on the base, and working the transparent glass film. CONSTITUTION:An oxyhydrogen quartz burner 4 different from a porous glass forming quartz burner 3 is arranged, facing the base placing face of a turn table rotated with a base 2 placed thereon, and a porous glass is accumulated on the base 2 by use of the porous glass forming quartz burner 3, and the base 2 is then thermally treated by the oxyhydrogen flame of the oxyhydrogen quartz burner 4. Thus, the bulk density of the porous glass accumulated on the base 2 is improved, and the shrinkage of the porous glass at glassing by the following sintering treatment can be suppressed to the minimum.
Patent JP-H07123246-A (JP)
Title: Binary picture reduction device
Inventor: YAMADA HIDEAKI
IPC: H04N1/393
Filed: 1993-10-22
Abstract: PURPOSE:To prevent deterioration in picture quality due to error spread of a line drawing by calculating a 1st tentative reduction picture element value of a picture element block based on a counted black picture element number and a reduction rate and calculating a 2nd tentative reduced picture element based on an exception processing condition. CONSTITUTION:An adder section 2 counts number of block picture elements Gxy in a picture element block of a line buffer 1. A comparator section 3 compares the number of block picture elements Gxy with a preset threshold level T to set a 1st tentative reduced picture element Txy of the picture element block as Txy=1 (black level) in the case of Gxxy>=T and (to set the 1st tentative reduced picture element T., of the picture element block as Txy=0 (white level) in the case of Gxy<T. An except processing section 4 uses a conversion picture element block already converted and a picture element block processed at present to discriminate whether or not the picture element block has an except pattern. When the picture element block is the except pattern, a 2nd tentative picture element value Exy is set to 0 (white level) to provide an except discrimination signal s=0 and when not the except pattern, an exception discrimination signal s-1 is outputted. A reduced picture element decision section 5 sets the conversion picture element Qxy to be Txy in the case of s=1 and sets the conversion picture element Qxy to be Exy in the case of s=0.
Patent JP-H05105466-A (JP)
Title: Production of base material for optical fiber
Inventor: ITO MASUMI
IPC: C03B37/014
Filed: 1991-10-14
Abstract: PURPOSE:To produce a base material for an optical fiber used for optical fiber laser, an optical amplifier, etc., by a novel method. CONSTITUTION:When a base material for an optical fiber with a core doped with a dopant compd. and a clad is produced, an SiO2-based coating film contg. the dopant compd. is formed by a sol-gel process on the inner wall of a core- clad type glass tube with a hole at the center of the core and vapor of a metal compd. is fed into the glass tube while heating the tube. The coating film is then converted into transparent glass while feeding a gaseous chlorine-oxygen mixture and the glass tube is collapsed. Silicon alkoxide is preferably used as starting material for SiO2 forming the coating film. A compd. of a rare earth element is preferably used as the dopant compd. and the chloride of Si, Ge, Ti, B, Al or P as the metal compd. By this invention, a preform contg. the rare earth element at high concn. can easily be produced.
Patent JP-H02111449-A (JP)
Title: Rotary cutting treatment apparatus
Inventor: YAMATE TADATAKA
IPC: B02C18/18
Filed: 1988-10-19
Abstract: PURPOSE:To cut a material to be treated into small pieces by arranging lengthwise edges and breadthwise edges to faced rotary edges. CONSTITUTION:The rotary edges 11, 12 are set as facing with a motor 13 to cut the material to be treated charged from the upper part. Then, in each rotary edges 11, 12, plural disk-like edge parts 21, 22, which form gear-like at the circumference and the breadthwise edges 23 at the tip part and the lengthwise edges 24a at least in one part of the side part, and round groove part 24, which the breadthwise edges 23 of the rotary edges formed at intermediate part of the disk-like edge part as facing abut on the bottom part 25, are arranged. In this result, the material to be treated can be treated by finely cutting.
Patent JP-S63119672-A (JP)
Title: Measuring device for oxygen concentration
Inventor: NUNOGAKI YOSHIAKI
IPC: G01N21/27
Filed: 1986-11-06
Abstract: PURPOSE:To make it possible to measure oxygen concentration rapidly and in high precision, by irradiating a reaction system in a constant temperature bath with light rays from the outside of the constant temperature bath, measuring absorbance of light with specific wavelength, subjecting a function of time showing change in the absorbance to Fourier transformation and calculating oxygen concentration. CONSTITUTION:In a constant temperature bath 8 equipped with an optical window 14 to transmit light rays to inside and outside, a reaction system 1 which is in a steady state at a fixed temperature in a condition free from light irradiation is set. The reaction system 1 is irradiated with light rays in a pulse state by a light source part 3 at the outside of the constant temperature bath. Further absorbance of light rays with specific wavelength in the reaction system is measured by an absorbance measuring means 5. A function of time showing change in absorbance is subjected to Fourier transformation by a calculating part 6 to calculate each concentration of oxygen contained in the reaction system. Consequently oxygen concentration can be instantly measured, measurement is carried out rapidly and measurement precision can be improved by preventing error factors with time from entering into the reaction system.
Patent JP-H08124720-A (JP)
Title: Varistor and its manufacture
Inventor: MATSUYAMA YOSHIO
IPC: H01C7/12
Filed: 1994-10-28
Abstract: PURPOSE: To provide a varistor having an excellent plating resistance and a moisture resistance by forming a high-resistance layer composed mainly of a Zn-X-O material on at least the areas of the surface of a varistor element which are not covered with electrodes. CONSTITUTION: A plurality of Ag internal electrodes 2 are provided in a varistor element 1. The electrodes 2 are alternately led out to both ends of the element 1 and electrically connected to external electrodes 3 at both ends. Then the element 1 is buried in an X oxide (X=Fe, Sb, Ti, or Al), and baked in the air or an oxygen atmosphere. When the element 1 is baked, the ZnO which is the main component of the element 1 reacts with the X oxide and a high- resistance layer 4a made mainly of a Zn-X-O material is formed on the surface of the element 1 except the parts covered with the external electrodes 3. When Bi2 O3 which is the accessory component of the element 1 reacts with the X oxide, another high-resistance layer 4b made mainly of a Bi-X-O material is formed on the surface of the element 1. Therefore, a varistor element having an excellent chemical resistance and a moisture resistance can be obtained.
Patent JP-H02112323-A (JP)
Title: Radio communication equipment
Inventor: IWAHASHI KOJI
IPC: H04B1/40
Filed: 1988-10-20
Abstract: PURPOSE:To provide only a single oscillator requiring high stability, to simplify a constituting element, and to reduce a cost by using the output frequency signal of a second local oscillator for a reference frequency signal. CONSTITUTION:In a radio communication equipment provided with a first local oscillator 4, a first frequency mixer 3, a second local oscillator 8, a second frequency mixer 7, a frequency discriminating circuit and a transmission part, the second local oscillating signal of a second local oscillator 8 is applied to the first local oscillator 4 and the transmission part as the reference frequency signal. Thus, the number of the oscillators with the high stability is reduced, and the equipment costs can be made economical. Further, the second local oscillator 8 is made into a voltage controlled oscillator whose frequencies are made variable, and the oscillated frequencies can be corrected based on the received signal frequencies.
Patent JP-H04141845-A (JP)
Title: Magneto-optical recording medium
Inventor: TACHIKAWA SHINJI
IPC: G11B11/105
Filed: 1990-10-02
Abstract: PURPOSE:To provide the recording medium which is free from a change in characteristics and is thermally stable even in the case of repetitive use by including the thin film of a magneto-optical recording material consisting of an amorphous rare earth/transition metal alloy supported on a substrate, specifying the oxygen concn. in the amorphous rare earth/transition metal alloy and subjecting this film to a heating treatment. CONSTITUTION:This recording medium includes the substrate and the thin film of the magneto-optical recording material consisting of the amorphous rare earth/transition metal alloy supported on the substrate. The oxygen concn. in the amorphous rare earth/transition metal alloy is confined to <=3at.% and this film is subjected to the heating treatment. The heating treatment temp. of this film is preferably specified to 90 to 120 deg.C and the heating treatment time to 5 to 60 minutes. The amorphous rare earth/transition metal alloy, such as Tb-Fe or Dy-Fe, is usable as the amorphous alloy. The thickness of the thin film of the magneto-optical recording material is preferably in a 200 to 1,000Angstrom  range. The change in the characteristics is obviated and the thermal stability is obtd. in spite of the repetition of writing, reproducing and erasing many times in the same place.
Patent JP-H03129364-A (JP)
Title: Method for correcting deterioration of photosensitive body with time
Inventor: KANEKO TOSHIO
IPC: G03G21/00
Filed: 1989-10-16
Abstract: PURPOSE:To exactly correct the deterioration of the photosensitive body with time by measuring the accumulated revolving speed of the photosensitive body and correcting the conditions for forming images by the quantity which is preset with respect to the respective accumulated revolving speeds at every passage of the set specified revolving speed. CONSTITUTION:The accumulated revolving speed of the photosensitive body is measured and the conditions for forming images are corrected by the quantity which is preset with respect to the respective accumulated revolving speeds at every time when the accumulated revolving speed passes the preset specified revolving speed. Namely, the accumulated revolving speed of the photosensitive body is corrected by the preset quantity for each of the specified revolving speeds of the photosensitive body, by which the same correction of the image forming conditions is executed with the accumulated revolving speed of the same photosensitive body regardless of whether the continuous image formation is frequent or the image formation of a small number of sheets, such as one sheet or two sheets, is frequent in the form of the copying or printing to the attainment of the above-mentioned accumulated revolving speed. The exact correction is executed in this way.
Patent JP-S63120320-A (JP)
Title: Microprocessor and microcontroller
Inventor: YAMADA AKIRA
IPC: G06F1/04
Filed: 1986-11-08
Abstract: PURPOSE:To omit a matching job of a tester and to facilitate a test job by using an external pin to control the internal clock signal and deciding the working start point of said clock signal. CONSTITUTION:An external clock signal 1 is applied from a tester and an L level is provided to a signal 2 of an external pin which controls an internal clock signal 3. Under such conditions, the signal 3 is kept in pause within a device. Then the signal 2 is changed to an H level from the L level. In the case of this device, the signal 3 has a rise and starts its working after a single machine cycle 4 from said change of levels of the signal 2. Thus the rise point of the signal 3 is defined as a test reference point 7 to carry out the subsequent tests. As a result, a test job is facilitated owing to omission of a matching job where synchronism is secured between both signals 1 and 3 by means of a tester.
Patent JP-H08127147-A (JP)
Title: Thermal printer
Inventor: HYODO TETSUHARU
IPC: B41J2/355
Filed: 1994-10-31
Abstract: PURPOSE: To provide a thermal printer miniaturized in its drive control circuit and capable of being produced in low cost as compared with a conventional thermal printer. CONSTITUTION: A large number of heating resistors, a plurality of switching elements controlling the current flowing to the heating resistors and a power supply 9 supplying power to the heating resistors through feed paths 3a, 3b, 3c are provided and the heating resistors are divided into two groups and diodes Xa set to a continuity state in a predetermined direction are connected to the heating resistors of one group in series while diodes Xb set to a continuity state in the direction reverse to the predetermined direction are connected to the heating resistors of the other group in series. The conversion means 10 converting the direction of the current flowing through the feed paths 3b, 3c is provided between the feed paths 3b, 3c and the power supply 9.
Patent JP-H1086815-A (JP)
Title: Reservoir
Inventor: OTSUKA YUKINORI
IPC: B60T17/06
Filed: 1996-09-18
Abstract: PROBLEM TO BE SOLVED: To provide a reservoir in which production of a piston is facilitated for lowering a production cost while deterioration of sealing performance of a seal member is prevented. SOLUTION: A reservoir is provided with a cylinder 11 in which a fluid pressure path 12 is opened, a piston 13 which is arranged to be freely slidable in the inside of the cylinder 11, and a seal member 21 arranged in a slide contact part between the cylinder 11 and the piston 13. The piston 13 is formed of a synthetic resin material into a bottomed cylinder shape, and in the outer circumference of the bottom part, 13a in the piston 13, a shrunk diameter stepped part 14 and a ring type groove 15 provided with a diameter smaller than that of the shrunk diameter stepped part 14 are formed.  A ring type pressing plate 17 whose inner circumference side base end part 17a is engaged in the ring type groove 15 is arranged, and by means of the outer circumference part 17b of the pressing plate 17 and the shrunk diameter stepped part 14, a circumferential groove 20 opened toward the outer circumference side is formed, and the seal member 21 is fitted inside the circumferential groove 20.
Patent JP-2000100202-A (JP)
Title: Task ambient illumination system
Inventor: NAKAYAMA MASATOYO
IPC: F21S4/00
Filed: 1998-09-21
Abstract: PROBLEM TO BE SOLVED: To provide a task ambient illumination system that secures an appropriate illumination environment and saves the energy of the illumination system. SOLUTION: Ambient illumination 11 are installed in rows at proper intervals inside a ceiling above an illumination region, multiple suspending tools 12 are fixed at proper intervals between the lines of the ambient illumination inside the ceiling, power feeding rails 16 are suspended and fixed between the suspending tools 12 generally parallel with a ceiling slab surface 10, supporting frame members 14 positioned generally parallel with and below the power feeding rails 16 are suspended and fixed between the suspending tools 12, and grid louver units 17 wherein task illuminations 18 are formed in predetermined grid boxes 17b are transferrably mounted between the supporting frame members 14.
Patent JP-H04144859-A (JP)
Title: Paper sheet carrying device
Inventor: IKEDA EIJI
IPC: B65H9/10
Filed: 1990-10-04
Abstract: PURPOSE:To precisely perform correction by detecting a skew amount and its direction, and, according to this, giving different rotating speeds and moving quantities to two aligner rollers disposed in parallel to carrying direction to conduct the alignment. CONSTITUTION:A feed system for supplying a paper sheet (a) one by one, a carrying system for carrying the supplied paper sheet (a), skew detectors 12, 13 for detecting the skew amount of the paper sheet (a), and two rollers disposed in parallel to the carrying detection are provided. In this case, the skew amount of the carried paper sheet (a) is detected by the skew detectors 12, 13, and, on the basis of the detected skew amount, different rotating speeds are given to each of the two rollers (7, 7A), (8, 8A) disposed in parallel to the carrying direction to correct the skew of the paper sheet (a) by the difference in rotating speed.
Patent JP-H0715863-A (JP)
Title: Transformer protective relay device
Inventor: SHINOZAKI NOBUHIKO
IPC: H02H7/045
Filed: 1993-10-26
Abstract: PURPOSE:To eliminate a delay of a fault removing time, to enhance reliability of protection and to prevent an unnecessary operation against an exciting rush current in a transformer protective relay device for tripping a breaker to protect by a ratio differential relay element to be operated on the basis of a ratio of a difference current of input and output currents to and from a transformer to be protected to a suppressing current. CONSTITUTION:The transformer protective relay device comprises a three-phase overcurrent relay element 17 with a second harmonic wave suppressing function which operates when a ratio of a total value SIGMAIf2 of three phases of a fundamental wave component in a difference current to a total value SIGMAIf2 of three phases of a second harmonic wave component satisfies a condition of SIGMAIf2/SIGMAIf1 <=alpha(for example, 0.15). AND circuits 14, 15, 15 carry out ANDs of operating outputs of the element 17 and ratio differential relay elements 1, 2, 3, and a trip output is obtained through an OR circuit 10.
Patent JP-2001094180-A (JP)
Title: Aperture
Inventor: MATSUZAKA FUMIO
IPC: H01S3/098
Filed: 1999-09-21
Abstract: PROBLEM TO BE SOLVED: To prevent heating of ambient members by reducing reflection and scattering of laser light. SOLUTION: An aperture 9 for reducing the diameter of a laser beam R, emitted from the end in the axial-direction of a laser rod through an opening 10. The aperture is made of a material through which the beam R can transmit, both surfaces of an edge 11 for reducing an excessive laser light Ra to reduce the diameter of the beam are provided as incident surfaces 12 perpendicular to the laser light R, and a notch having reflection surfaces 13 which totally reflects the laser light Ra entered from the planes 12 of incidence toward a prescribed interior.
Patent JP-H03127398-A (JP)
Title: Readout circuit for semiconductor memory device
Inventor: ISHIBASHI KENJI
IPC: G11C11/41
Filed: 1989-10-13
Abstract: PURPOSE:To contrive the shortening of readout time and the stabilization of readout operation by connecting a charging circuit to plural spots of bit line or one spot of nearly center so as to charge the whole bit line at nearly uniform speed. CONSTITUTION:The subject readout circuit is provided with the bit line 1 connected to plural memory cells 5,5,... in the constant interval and an amplifier 8 connected to an end part 1a of the bit, plural charging circuits, i.e. the charging circuit 2 constituting of N channel MOSFETs 2a, 2b,... And one side of terminal of transistors 2a, 2b,... of the charging circuit 2, e.g. is connected to each bit line 1 in the nearly constant interval at every 3 memory cell 5, on the other hand, another side of terminal of the transistors 2a, 2b,... is connected to each the power source. The respective gates are connected to a common charging control signal 3. Consequently, even the bit line 1 having the electric resistance the whole of circuit is charged in high-speed, moreover in the nearly constant speed. In such a manner, the readout time of data is shortened and the readout operation is stabilized.
Patent JP-H08128748-A (JP)
Title: Multi-room type air conditioner
Inventor: SAKAI HIROAKI
IPC: F24F3/14
Filed: 1994-10-31
Abstract: PURPOSE: To improve the efficiency of a dehumidifying operation in which the indoor air temperature is not lowered and cooling and heating operations. CONSTITUTION: Motor driven expansion valves 106a, 106b are provided in an outdoor unit 101. Capillary tubes 111a, 111b and indoor solenoid valves 112a, 112b are provided in parallel between first room indoor heat exchangers 1a, 1b and second room indoor heat exchangers 2a, 2b largely set at the lower side by several stages as large as the exchangers 1a, 1b in indoor units 107a, 107b, and the part of the heat exchanged air heat exchanged by the exchangers 2a, 2b is not passed through the exchangers 1a, 1b.
Patent JP-H01107923-A (JP)
Title: Chamfering method for pipe
Inventor: NAGATA NOBUYUKI
IPC: B21D19/00
Filed: 1987-10-22
Abstract: PURPOSE:To execute one side chamfering by one shot and to improve the work efficiency by pressing a chambered part of a pipe by a slant face of a bending die which has been aligned with said part and bending it in the desired direction, pressing a deformation generated on the opposite side by this bending, by a slant face of a straightening die and restoring it to its original form. CONSTITUTION:A pipe 1 which has been supported by a supporting body 2 is pressed by a bending die 4 provided with a slat face 3 for bending and a straightening die provided with a slant face 5 for straightening a deformation. As a result, the slant face 3 of the bending die 4 bends the end of the pipe 1 to the inside and forms a chamfer 7 on the outside, and also, the slant face 5 of the straightening die 6 straightens a deformation 8 of the pipe 1 generated by bending, so as to coincide with the inside diameter of the pipe 1, and a one side chamfer whose inside diameter is not generated is formed on the outside of the pipe.