baber/WOPTO huggingface dataset:
Patent JP-H11238240-A (JP)
Title: Optical pickup and recorder, reproducing device and recording/reproducing device using it
Inventor: YAMADA MASATO
IPC: G11B7/00
Filed: 1998-02-23
Abstract: PROBLEM TO BE SOLVED: To provide an optical pickup, a reproducing device, a recorder, a recording/ reproducing device capable of selectively switching an aspect ratio of a laser beam outgoing from a semiconductor laser and setting the aspect ratio suited to an optical disk. SOLUTION: When a signal is recorded on the optical disk 6, the laser beam of a wavelength 635 nm outgoing from the semiconductor laser 1 is made into parallel beams by a collimate lens 2 to be made incident on an optical means 3. The incident laser beam is converted to a prescribed aspect by applying a voltage from a liquid crystal drive circuit 9 to the optical means 3 to be made incident on an objective lens 5 through a half mirror 4. The laser beam made incident on the objective lens 5 is converged by the objective lens 5, and the signal recording surface 6a of the optical disk 6 is irradiated by the laser beam, and the signal is recorded. When the signal is reproduced, the voltage isn't applied from the liquid crystal drive circuit 9 to the optical means 3.  The laser beam outgoing from the semiconductor laser 1 is made incident on the objective lens 5 in the state that the aspect ratio isn't changed through the collimate lens 2, the optical means 3 and the half mirror 4 to be converged, and the signal recording surface 6a of the optical disk 6 is irradiated by the laser beam.
Patent JP-H10243515-A (JP)
Title: Tester for cable protective pipe
Inventor: KAMEI HIDENOBU
IPC: H02G9/00
Filed: 1997-02-25
Abstract: PROBLEM TO BE SOLVED: To improve the efficiency for inserting a test bar after burying a cable protective pipe. SOLUTION: On end of a cable protective pipe 1 is blocked by the plug 7 of a plug device 6, and a wire 17 is led into the cable protective pipe 1, and also a test bar 2 is connected to the tip of the wore 17, and further a diaphragm device 28 is connected to the tip of the test bar 2, and the inside is supplied with compressed air through the plug 7, and air pressure is made to work on the diaphragms 30, 31, and 32 of the diaphragm device 28 so as to make it run, taking the test bar 2 along with itself.
Patent JP-H06229697-A (JP)
Title: Heat exchanger
Inventor: KASAI TAKASHI
IPC: F28F9/02
Filed: 1993-02-05
Abstract: PURPOSE:To provide a heat exchanger wherein an effective usage of a cooled air can be contrived in response to a shape of a cooled air taking-in portion. CONSTITUTION:Between header pipes 2, 3, there is arranged a main heat exchanger 1 wherein a tube 4 and a heat discharging fin 5 are arranged with a laminated condition. There is set a subsidiary heat exchanger 13 having a smaller heat exchanging area than that of a main heat exchanger and having a storage tank storing heat exchanging medium, a plurality of tubes in connection with the tanks and a heat discharging fins 5 arranged between these tubes. The storage tanks 14 to 17 are made flat to a vertical direction and the tanks 14 to 17 executes a plurality of superposing arrangements at a predetermined position of the main heat exchanger 1. On vertically opposing faces of the storage tanks 14 to 17, transparent holes are formed, and these transparent holes are arranged with position displacement each other to the same direction as an arrangement direction of the tubes and these transparent holes are in communication with the storage tanks which execute a superposing arrangement.
Patent JP-S52123874-A (JP)
Title: Producing device for plastic molded type semiconductor devices
Inventor: YANAGIYA KOUJI
IPC: H01L23/48
Filed: 1976-04-09
Abstract: PURPOSE:To readily remove flashes produced at the molding by providing resindepository grooves in molds so as to adjoin to one side of lead conductors.
Patent JP-H10237483-A (JP)
Title: Detergent composition
Inventor: SUZUKI YASUO
IPC: C11D1/28
Filed: 1997-02-25
Abstract: PROBLEM TO BE SOLVED: To obtain a detergent composition which is lowly irritating to the skin and the hair, has excellent foamability and foam quality, can be easily separated by rinsing and has excellent feeling of use during and after washing by using a combination of an N-alkylamidoalkanolsulfuric acid ester salt with a water-soluble anionic or nonionic polymer. SOLUTION: This composition contains desirably 1-70wt.%, based on the total composition, N-alkylamidoalkanolsulfuric acid ester salt of the formula (wherein R<1> is a 6-22C alkyl or alkenyl; R<2> is a 1-22C alkyl, an alkenyl or hydrogen; R<3> is a 1-5C alkylene; R<4> O is a 2 or 3C oxyalkylene; n is 0-20; and M is hydrogen, an alkali metal, ammonium, a basic amino acid or the like). The water-soluble anionic or nonionic polymer may be a natural or synthetic one, exemplified by pectin, gelatin of hydroxyethylcellulose, especially desirably polyvinylcellulose having a molecular weight of 300-5,000,000 and is used in an amount of desirably 0.01-5wt.%, based on the total composition.
Patent JP-H03243043-A (JP)
Title: Digital radio wave demodulating circuit
Inventor: KASHIWAGI TAKASHI
IPC: H04L27/148
Filed: 1990-02-21
Abstract: PURPOSE:To correctly reproduce codes by providing this digital radio wave demodulating circuit with a switch for connecting a reference voltage source to a capacitor when a voltage value exceeds a regulated value. CONSTITUTION:When an adjacent channel wave is inputted and its level is increased, DC voltage values outputted from low pass filters(LPFs) 51, 52 are shifted up and down in accordance with a leakage value into the band of a required channel. When the voltage value exceeds the regulated range, an identification circuit 11 changes over a switch 12 so as to connect the capacitor C to the reference voltage source 13 to suppress the generation of a potential difference between both terminals of the capacitor 6. When the desired channel wave arrives in this state, the DC voltage values outputted from the LPFs 51, 52 are led into the regulated range and the circuit 11 changes over the switch 12 again to connect the LPF 52 to the capacitor 6 and drives a code reproducing circuit 7 and a clock reproducing circuit 8.
Patent JP-H10242536-A (JP)
Title: Manufacture of thermoelectric module
Inventor: KAMEI KATSUMOTO
IPC: H01L35/34
Filed: 1997-02-25
Abstract: PROBLEM TO BE SOLVED: To provide a manufacturing method wherein bonding strength of electrodes and thermoelectric elements is improved and change of thermoelectric module size is easy, in a thermoelectric module wherein P type thermoelectric elements and N type thermoelectric elements are adjacently arranged to each other, both end surfaces of the aligned thermoelectric elements are connected by using conductive electrodes, and heat exchanging boards are fixed on both of the electrode surfaces. SOLUTION: A billet capsule 7 wherein a filling hole 8 is arranged in the longitudinal direction of a stick member is formed. The filling hole 8 is filled with P-type thermoelectric elements 6a and N-type thermoelectric element 6b in the state that they are made adjacent to each other. The billet capsule 7 is stretched by extrusion working, and an extrusion work capsule is formed. This extrusion work capsule is cut so as to cross the longitudinal direction, and a plurality of plate members 12 are formed. Conductive electrodes 2 are formed on both of the cut surfaces of the plate members 12. Heat exchanging boards are fixed on the electrode surfaces, and a thermoelectric module is manufactured.
Patent JP-2000245064-A (JP)
Title: State estimation equipment of distribution system and its method
Inventor: IMAMURA YUZURU
IPC: H02J3/00
Filed: 1999-02-19
Abstract: PROBLEM TO BE SOLVED: To enable high precise state estimation of a distribution system by adequately processing calculation and correction of the section power flow-in value which is the total sum of a plurality of power flow-in in a section, about each section. SOLUTION: This state estimation equipment of distribution system distributes the measured value of power to be sent to each section of a distribution line where a distribution system is divided. A means 110 calculates dispersion (distribution) of flow-in power in each section, on the basis of sample information of power value in each section or measured information of specially high consumers. A means 140 obtains an initial value and a correction ratio of the power in each section on the basis of the dispersion, and calculates a correction value of the power of each section. A means 115 obtains a flow-in power by adding the correction value to the initial value, and estimates the power to be sent out. A means 520 obtains mismatch between the estimated value of the power to be sent out and a practically measured value.  When the mismatch is larger than a specified value, process is repeated by setting the estimated value as an initial value.
Patent JP-H02221320-A (JP)
Title: Pitch changer of transporting material for roller hearth type heat treatment furnace
Inventor: YAMAMOTO MITSURU
IPC: F27B9/24
Filed: 1989-02-21
Abstract: PURPOSE:To prevent the generation of rubbing flaws on the surface of materials to be heated by a difference in the speeds of rollers and to improve the productivity of the heating furnace by disposing non-driven roller groups to at least one point between the plural driving roller groups in a roller hearth. CONSTITUTION:The hearth rollers in the heat treatment furnace are constituted of the driving roller groups F1 to F6 and the non-driven roller groups E1, E2 between these groups. The transporting speed of the driving roller group F1 is increased from V1 to V2 at the point of the time when the rear end of the preceding material 72 to be heated passes the driving roller group F1. The transporting speed of the driving roller group F1 is then reset again to the same speed V1 as the speed of the driving roller group F2 at the point of the time when the material pitch L1 attains the prescribed charging pitch Lip. The charging pitch is thus shortened down to the prescribed value LiP. Since the rollers 81 to 83 are the non-driven rollers, the flawing of the rear end of the preceding material 72 and the front end of the succeeding material 71 does not arise. The same procedures may be followed in the case of extracting the materials to be heated from the furnace, by which the flawing of the material to be heated is prevented.
Patent JP-H04357404-A (JP)
Title: Measuring method and apparatus for thin film
Inventor: ISOBE TAMI
IPC: G01B11/06
Filed: 1991-02-13
Abstract: PURPOSE:To measure the refractive index and the thickness of an anisotropic film in three orthogonal directions in a noncontact and nondestructive manner. CONSTITUTION:A first through (m)th thin film layers (m>=1) are formed on a substrate 10 having the complex index of refraction (n)(*b) sequentially from the far side towards the substrate 10. When the first thin film 1 is an anisotropic film, and the second through (m)th thin films have the known complex of refraction n(*J) and the known film thickness d(J) (J=2-m), and moreover the substrate has the known complex index of refraction n(*b), supporting that the two directions set parallel to the surface of the first thin film 1 and orthogonal to each other are X-, Y-directions and the set direction of the film thickness is Z, the index of refraction n(1;X) of the light beam having the oscillating direction of the electric field in the X axis, the index of refraction n(1;Y) of the light beam having the oscillating direction of the electric field in the Y-axis, the index of refraction n(1;Z) of the light beam having the oscillating direction of the electric field in the Z-axis, and the film thickness d(1) of the first thin film 1 are measured.
Patent JP-H08207927-A (JP)
Title: Paper carton for liquid
Inventor: CHIYOU ISHIYUU
IPC: B32B9/00
Filed: 1995-02-06
Abstract: PURPOSE: To provide a paper carton for liquid without an aluminum foil used which can be burned in an incinerator and has high oxygen gas barrier property similar to a paper carton using the aluminum foil. CONSTITUTION: A paper carton for liquid is formed of a laminated blank sheet mainly comprising a laminated body of, sequentially from inner to outer layers, a plastic layer (I) 1, a plastic layer (II) 2, a thin vapor-deposited layer 2a of silicon oxide, a thermoplastic resin layer 3 containing hydroxyl group, a paper layer 4, an adhesive layer 5 and a cardboard layer 6.
Patent JP-S5241378-A (JP)
Title: Stairs of escalator
Inventor: HARA TAKESHI
IPC: B66B29/02
Filed: 1976-04-14
Abstract: PURPOSE: To provide a construction of stairs of escalator, in which a crosspiece taller than those of central portion of the foot step is formed on both sides of the foot step facing respective railing skirt guard, along the entire length thereof, thereby preventing passengers from cominb close to the railing panel and their clothes from being caught between the stairs and skirt guard. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H11220164-A (JP)
Title: Light-emitting element array and light-emitting element
Inventor: OGIWARA MITSUHIKO
IPC: H01L27/15
Filed: 1998-02-24
Abstract: PROBLEM TO BE SOLVED: To provide a high-density light-emitting element array and a light- emitting element of high light emission efficiency, of low-cost, high-yield and capable of mass production. SOLUTION: In an LED array, an n-type GaAs buffer layer 110 is provided on an n-type GaAs substrate 101, and over it, an n-type Alx Ga1-x As layer (epi- layer 1) 102 of thickness d1 of epitaxial growth, an n-type Aly Ga1-y As layer (epi-layer 2) 103 of thickness d2, a diffused region 104 formed by having Zn diffused, a diffused front 105 of the diffused region 104, a p-side electrode 106, an interlayer insulating film 107, and an n-side electrode 108 are provided, so that an energy band gap Eg1 of the epi-layer 1 becomes smaller than an energy band gap Eg2 of the epi-layer 2 (Eg1<Eg2).
Patent JP-2000240610-A (JP)
Title: Cushion device for hydraulic cylinder
Inventor: YASUOKA TOMOHIKO
IPC: F15B15/22
Filed: 1999-02-19
Abstract: PROBLEM TO BE SOLVED: To maintain enough tightening strength by a nut applied to a piston by constituting such that a collar is interposed between the piston and a step provided on a piston rod, and simultaneously to maintain a stable cushion characteristic with a cushion ring while the cushion ring is maintained in a state where the cushion ring does not directly slide on the piston rod. SOLUTION: A piston 11 is provided slidably in a cylinder 10 to apply a damping force near the stroke ends in the extension or the contraction of a piston rod 12 in the cylinder 10, and is fixed to the piston rod 12 by tightening a nut 20. A step wall 19 is provided on the piston rod 12. A collar 21 is interposed between the step wall 19 and the piston 11. A cushion ring 22 is fitted to the collar 21. The cushion ring 22 can be displaced freely between a position where the cushion ring abuts the step wall 19 and a position where the cushion ring abuts an end face of the piston 11. A one way passage 24 is formed on an end face part of the cushion ring 22 on the side that abuts the end face of the piston 11.
Patent JP-S57156270-A (JP)
Title: Multinozzle ink jet printer
Inventor: TAMAI MASAYOSHI
IPC: B41J2/15
Filed: 1981-03-24
Abstract: PURPOSE:To enhance a printing speed by a method wherein a printer head is provided with a plurality of printing nozzles so as to attain a plurality of printing bits at the same time. CONSTITUTION:One head is provided with a plurality of nozzles and a picture to be printed is divided into fragments in the same number as that of the nozzles, so that plural printing spots are generated simultaneously with the respective nozzles thereby to provide printing with plural bits. For example, when a nozzle A prints 11, 43 is printed by another nozzle B at the same time. Then, when the nozzle A prints 21, there is no character to be printed at a position corresponding to 53 of the nozzle B and hence ink droplets fall into a gutter. Next, the nozzle A prints 31, while the nozzle B has no character to be printed. Thereafter, when the head moves by one bit in the row direction, there is no character at both a position corresponding to 12 of the nozzle A and a position corresponding to 44 of the nozzle B, so that ink jetting from both nozzles fall into the gutter. Assuming that the number of nozzles is n, a printing time can be reduced to 1/n.
Patent JP-S56138953-A (JP)
Title: Semiconductor device
Inventor: WADA KUNIHIKO
IPC: H03F1/52
Filed: 1980-03-31
Abstract: PURPOSE:To obtain a protection diode effectively functioning without supplying a bias voltage thereto by forming a gate oxide film having desired charge at a part of an MOS semiconductor device and applying a potential effectively to the gate. CONSTITUTION:An N<+> type silicon layer 14 is formed on the first element region 13a isolated by the field silicon oxide film 12 of a P type silicon substrate 11. A gate oxide film 17 having negative charge made of alumina covering the P-N junction 16 of the peripheral edge of an N<+> type Si layer 14 and P type Si substrate 11 is formed on a gate oxide film 15 made of SiO2 formed on the surface of the element region 13a. A wire 20 is formed through an insulating film 18, and connected to the drain 22 of an MOS transistor. Negative potential is applied to the gate oxide film 17' by the negative load of the alumina layer 17, the breakdown voltage of the P-N junction is decreased to protect the drain.
Patent JP-S55133491-A (JP)
Title: Brake fluid composition
Inventor: GENJIDA FUMIHIDE
IPC: C10N40/08
Filed: 1979-04-05
Abstract: PURPOSE: A polyoxyalkylene or borate ester brake fluid composition that contains a specific nitrogen-containing borate ester, thus having high boiling point and low rubber-swelling properties.  
     CONSTITUTION: The objective polyoxyalkylene and/or borate ester brake fluid composition includes preferably 10W45wt% of nitrogen-containing borate ester of formula I (A 1 , A 2  are 2W4C alkylene; R 1 , R 2  are 1W4C alkyl; m1, m2 are 2W8; R 3  is residue of the alkylene oxide adduct to heterocyclic or alicyclic amine; x, y are 0W2; x is 1W3; x+y+z is 3; B is boron atom) such as compound of formula II or III. The compound of formula I is obtained, e.g., by making boric anhydride act on an alkylene oxide adduct to heterocyclic and/or alicyclic amine under a reduced pressure of 100W1mmHg at 50W200°C. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S51118279-A (JP)
Title: Group driving device for self-running cars
Inventor: SATOU JIROU
IPC: G08G1/00
Filed: 1975-04-08
Abstract: PURPOSE: To provide means for controlling a self-running car reliably with a feasible maintanance in a manner to prevent collisions. 
     COPYRIGHT: (C)1976,JPO&Japio
Patent JP-H01216851-A (JP)
Title: Laser marker
Inventor: YANO MAKOTO
IPC: B41J2/44
Filed: 1988-02-26
Abstract: PURPOSE:To make possible the improvement of a laser utility factor by using a liquid with an index of refraction indicating a specific range of physical property value as a coolant. CONSTITUTION:A laser marker projects a linear polarized laser beam 6 to be emitted from a pulsed laser to a liquid crystal mask 4 equipped with a liquid crystal cell part 1 to which pattern information is provided from the outside and with cooling parts 3a, 3b consisting of the liquid crystal cell part 1 sandwiched with sheet glass 2a, 2b on both sides and cooled by a coolant. The laser beam, which reflects the pattern information, of the transmission light penetrating the liquid crystals mask 4 is projected to a workpiece 7. In this way, the patter information is marked on the surface of the workpiece. The laser marker uses a liquid with a physical property value within a range of 1.4 to 1.53 of refractive index, for instance, silicone oil 8a, 8b, in addition to the sheet glass 2a, 2b employed in conformity with the wavelength of a linear deflected laser beam. Thus the reflection of the laser beam 6 in the surface between the liquid crystal mask 4 and an atmosphere and the Fresnel reflection generat ed in the sheet glass 2a, 2b, silicone oil 8a, 8b and the glass bases 9a, 9b of the liquid crystal cell part 1 are almost eliminated. Consequently, the laser marker which enables the laser utility factor to be improved is obtained.
Patent JP-H03244102-A (JP)
Title: Thermistor
Inventor: KAWAGUCHI YUKIO
IPC: H01C7/04
Filed: 1990-02-22
Abstract: PURPOSE:To improve thermal response and to prevent a crack by increasing the thickness of a thermistor element between both end faces larger than that of a glass body formed therearound, and slightly increasing the thermal expansion coefficient of the element than those of leads and the body. CONSTITUTION:A thermistor 1 has a predetermined thickness, and is formed of a thermistor element 2 having both flat end faces, a pair of leads 3a, 3b connected both one end faces of the element 2, and a glass body 4 for sealing the element 2 and one end regions of the leads. The thicknesses of both end faces of the element 2 are set to that larger than that of the body 4 around the element 2, and the element 2 having a thermal expansion coefficient magnified by (1.1+ or -20%) of those of the leads 3a, 3b and the body 4 is employed. Thus, the element 2 becomes nearer to the outer atmosphere to improve its thermal response, the differences of the thermal expansions of the elements upon measurement of the temperature of a heat generation source is reduced to prevent generation of crack of the body 4 and to improve the value of a product.
Patent JP-S60187108-A (JP)
Title: Signal reproducing device
Inventor: SATOU TETSUO
IPC: G11B20/02
Filed: 1984-03-07
Abstract: PURPOSE:To prevent generation of abnormal sound due to the 2nd signal by bringing the reception side into the standby state until the 2nd signal is a normal signal and receiving the signal after a prescribed time is elapsed in switching the signal from the 1st signal to the 2nd signal. CONSTITUTION:When a switch S1 is thrown to the position of +VCC power supply while a reproducing head LB is switched to a head LA, the voltage level of a time constant circuit RA.CA rises, transistors (TR)Q12, Q13 are turned on, a TRQ9 is driven, a differential amplifier consisting of TRs Q5, Q6 is operated and a speaker SP is brought into the silent state. Then a TRQ11 is turned on succeedingly, a TRQ7 is driven, the differential amplifier comprising the TRs Q5, Q6 is inoperative, the differential amplifier comprising TRs Q1, Q2 is operative and a signal obtained by the reproducing head LA is reproduced by the speaker SP.
Patent JP-S58158541-A (JP)
Title: Water quality meter
Inventor: SHIGIYAMA KEIGOROU
IPC: G01N21/33
Filed: 1982-03-16
Abstract: PURPOSE:To make it possible to measure ultra-violet ray absorptivity without using an expensive ultra-violet ray receiving element by generating fluorescence by directing ultra-violet ray through a specimen to a fluorescent plate and receiving this fluorescence by means of a visible light receiving element. CONSTITUTION:The light from a mercury lamp 7 that contains ultra-violet ray passes through the specimen A in a cell 4 via holes 3 and 3'. Within the light that passes through the specimen A and through the hole 3 only the visible light passes through a filter 9 and it is received by a light receiving element 10 and converted into electric signal. On the other hand only the ultra-violet ray in the light that passes through the specimen A and the hole 3' passes through a filter 11. The ultra-violet ray through the filter 11 is directed to a fluorescent plate 12 to generate fluorescence. The fluorescence is received by a visible light receiving element 13 provided at the end of a hole 3'' and converted into electric signal. With this arrangement the absorptivity of visible light through the specimen A is given by the output of the light receiving element 10, and also the absorptivity of ultra-violet ray is given by the output of the light receiving element 13.