baber/WOPTO huggingface dataset:
Patent JP-H04132658-A (JP)
Title: Ceramic sintered compact and production thereof
Inventor: HAYASHI KATSURA
IPC: C04B35/58
Filed: 1990-09-26
Abstract: PURPOSE:To obtain the subject sintered compact, excellent in hardness, toughness and abrasion resistance and useful as an abrasion-resistant material or material for cutting tools by the presence of specific needlelike grains in a sintered compact composed of Al, B, O and inevitable impurities at a prescribed ratio. CONSTITUTION:A ceramic sintered compact is obtained by the presence of needlelike grains, composed of at least Al, B and O and having >=1.5 aspect ratio in a sintered compact (e.g. a sintered compact composed of Al2O3, AlB12 and aluminum borate at a prescribed ratio) composed of 30-45wt.% Al, 3.0-50wt.% B and the remainder of O and inevitable impurities in the total amount thereof.
Patent JP-H04134443-A (JP)
Title: Silver halide photographic emulsion and photosensitive material
Inventor: YOSHIDA TETSUYA
IPC: G03C1/015
Filed: 1990-09-27
Abstract: PURPOSE:To obtain the silver halide photographic emulsion in which an adsorptive additive is substantially uniformly absorbed to the silver halide particles in the emulsion and which is stabilized by specifying the coefft. of fluctuation relating to the reflected spectral light absorption quantity on the additive- absorbed surface of the silver halide particles to a specific value or below. CONSTITUTION:The coefft. of the fluctuation relating to the reflected spectral light absorption quantity on the additive-absorbed surface of the silver halide particles is specified to <=0.4 and further, if the absorptive additive is a spectral sensitizing dye, the emulsion is so formed that the max. absorption wavelength of >=60% of the total silver halide particles is confined within a + or -10nm range of the average max. absorption wavelength.
Patent JP-2000086341-A (JP)
Title: Piezoelectric composition and its production
Inventor: MURAKAMI KENJI
IPC: H01B3/12
Filed: 1998-09-11
Abstract: PROBLEM TO BE SOLVED: To provide a piezoelectric composition of the PbZrO3-PbTiO3 compositional system that has high piezoelectric distortion properties and can be fired at a lower temperature. SOLUTION: This composition mainly comprises PbZrO3-PbTiO3-Pb(Zn1/3 Sb2/3)O3 and the elements of Bi and Fe are included in a range of 5 wt.% <=BiFeO3<=15 wt.% calculated as BiFeO3 or Li, Bi as well as at least one of element of Cd, B, Pb, Si and Zn are included in the range of 0 wt.% <Li2CO3 <=1.0 wt.%, 0 wt.% < Bi2O3<=1.0 wt.%, and 0 wt.% <CdCO3+B2O3+Pb3O4+ SiO2+ZnO<=2.0 wt.% whereby the objective piezoelectric composition is constituted.
Patent JP-H03119176-A (JP)
Title: Treatment of pitch-based carbon fiber
Inventor: YAMADA KOJI
IPC: D06M101/00
Filed: 1989-10-03
Abstract: PURPOSE:To remarkably improve the tensile strength and tensile modulus of carbon fiber by etching the surface of a pitch-based carbon fiber having a specific tensile strength and recarbonizing the fiber at a temperature higher than the temperature of the carbonization process performed before the etching treatment. CONSTITUTION:A pitch-based carbon fiber having a tensile strength of 100-400kg/mm<2> is subjected e.g. to electrolytic oxidation to etch the surface of the fiber. The etched fiber is washed with water, dried and recarbonized at a temperature higher than the temperature of the carbonization process of the carbon fiber performed before the pretreatment (e.g. about 1500-3000 deg.C) to remarkably improve the tensile strength and tensile modulus of the fiber. The strength of a composite can be surely improved by compounding the pitch- based carbon fiber produced by this process.
Patent JP-H0569083-A (JP)
Title: Structure for parting metallic mold
Inventor: SEKIGUCHI TAKEO
IPC: B22C9/06
Filed: 1991-09-10
Abstract: PURPOSE:To provide the structure for parting a copper-made metallic mold, in which a high quality work can be efficiently cast without wearing or damaging the metallic mold and parting mold pins. CONSTITUTION:In the copper-made metallic mold used to the metallic mold casting, the parting mold parts 10 having plural cavity parts communicated with a runner 9, are arranged at both side faces of the runner 9 lead to a sprue 4 and pin holes penetrated at the center part of these parting mold parts 10 are bored in a fixed mold 2 and the parting mold pins 12 as freely advancing/ retreating faced to the parting mold parts 10 are inserted into these holes.
Patent JP-H09102635-A (JP)
Title: Driving equipment and driving method of a piezoelectric actuator
Inventor: ASAI MITSURU
IPC: B23Q5/28
Filed: 1995-10-05
Abstract: PROBLEM TO BE SOLVED: To provide a driving equipment and a driving method of a piezoelectric actuator wherein crack and fracture are not generated in the piezoelectric actuator when the stroke of the piezoelectric actuator is sufficiently operated. SOLUTION: This driving method of a piezoelectric actuator has a safe region setting process for setting a safe region Vlim1 , and a driving process for applying a voltage to the piezoelectric actuator. In this safe region a 180 degree domain inversion amount (thick formed part) of piezoelectric material at either one out of a positive and negative applied voltages to the piezoelectric actuator is at most 1/3 of the whole 180 degree ferroelectric inversion amount S1 (shaped portion). In the driving process, and applied voltage is limited within the safe range Vrange1 . In the safe region Vrange1 , the applied voltage is generated. Temperature compensation is performed at need.  Since the 180 deg. ferroelectric inversion amount is limited, local stress concentration in the piezoelectric actuator is little, and the capability of the actuator is maximumly exhibited in the range wherein crack and fracture are not generated.
Patent JP-H1196411-A (JP)
Title: Automatic ticket examining device and method therefor
Inventor: AOKI TAKASHI
IPC: G07B15/00
Filed: 1997-09-24
Abstract: PROBLEM TO BE SOLVED: To shorten a ticket examination processing time and to improve a ticket examination processing efficiency by permitting the reception of the next ticket medium when any ticket medium is not left in a receiving means, and at least one of first and second preserving parts is empty. SOLUTION: A ticket medium inputted by the previous customer is successively ejected toward a downstream side, and when another preserving path 44 of the fourth maintaining path as an inverting path 40 is empty, the separate carriage of a ticket medium inputted by the next customer is successively started. Then, the separately carried ticket medium of the next customer is successively preserved in the preserving path 44 in a preserving path except the fourth preserving path. Then, the ticket medium of the precedent customer is laminated in the order of size in a second preserving path 60, and ejected from an ejection port 14 in a batch. On the other hand, the ticket medium of the next customer is preserved in each preserving path, and successively ejected after a passage judgment processing. Thus, while the ticket medium of the precedent customer is processed, the ticket medium of the next customer can be processed in parallel.
Patent JP-H1194673-A (JP)
Title: Sensor and its manufacture
Inventor: USUDA HIROSHI
IPC: G01L9/04
Filed: 1997-09-24
Abstract: PROBLEM TO BE SOLVED: To enhance the manufacturing efficiency by enabling a sensor to be miniaturized and to be made thinner. SOLUTION: When the sensor has a sensor chip 12 where a strain gage element is placed on a diaphragm 121 to detect the physical quantity of the diaphragm 121 and convert the same into an electric signal, a flexible board 13 is provided via a bump 21 on the upper surface of the diaphragm 12, on which the strain gage element is placed, and an electric circuit 23 amplifying the electric signal for output is provided on the flexible board 13. Since the electric circuit 23 on the flexible board 13 and the strain gage element on the diaphragm 121 are electrically connected together by the bump 21, a thinner thickness is achieved and a connection can be made through die bonding, so that the manufacturing time of the sensor can be reduced greatly.
Patent JP-H1194202-A (JP)
Title: Steam producing equipment
Inventor: KAWAMURA TAIZO
IPC: F22B1/28
Filed: 1997-09-24
Abstract: PROBLEM TO BE SOLVED: To provide steam producing equipment which enables quick start of operation until rating is reached, in the case when a boiler part and a superheating part are so provided as to be divided from each other. SOLUTION: This equipment is constructed of a boiler part 2 which turns a liquid into steam by heating and a superheating part 3 which is so provided as to be divided from the boiler part 2 and turns the steam into superheated steam by heating, and the superheating part 3 is disposed horizontally. This part needs only to be in a horizontal position or in upward inclination from the horizontal position in such a degree as to leave a passage through which the steam from the boiler part 2 can pass in the axial direction even when it is condensed in the superheating part 3 at the time of starting.
Patent JP-2001085256-A (JP)
Title: PRODUCTION OF RARE-EARTH-Fe-Co-B MAGNET
Inventor: MORI KATSUHIKO
IPC: B22F3/14
Filed: 1999-09-13
Abstract: PROBLEM TO BE SOLVED: To provide a method for produce a rare-earth-Fe-Co-B magnet having a superior magnetic characteristic without providing a demagnetizing step. SOLUTION: An R-Fe-Co-B alloy powder with a weak coersive force and residual hydrogen (R: at least one kind of rare-earth element including Y) which has a residual hydrogen of 0.01 to 0.5 wt.% and a coersive force of 0.01 to 8 kOe is oriented in a magnetic field, and it is molded by a press to form a green compact. Then the green compact is dehydrogenized at 700 to 900 deg.C in a vacuum atmosphere of 1 Torr or lower, and it is hot-pressed to form a rare-earth-Fe-Co-B magnet.
Patent JP-H04135673-A (JP)
Title: Patterned decorative material and production thereof
Inventor: KATSUYAMA HIROKI
IPC: B05D5/06
Filed: 1990-09-28
Abstract: PURPOSE:To obtain the patterned decorative material consisting of a metallic plate, such as precoated metallic plate in particular, as a base material by forming a 2nd coating film consisting of a coating material for forming crystal-like crepe patterns on a 1st cured and coated film of a primer coat consisting of a specific linear polyester resin as the component for forming the coating film. CONSTITUTION:The 1st cured and coated film 3 consisting of the primer coat is formed on the base material 2 and the 2nd cured and coated film 4 consisting of the coating material for forming the crepe patterns is formed on this film. The 2nd cured and coated film 4 uniformly generates the hexagonal network crepe patterns 5 consisting of the amorphous network (cell) patterns formed of the crepe patterns of a large height over the entire surface and is further formed with the fine striate crepe patterns 6 exhibiting the appearance like the crystals of frost on the inner side of the network of the network crepe patterns 5, thus forming the crystal-like crepe patterns as a whole. The patterned decorative sheet 1 is most adequately used as the patterned decorative material consisting of the metallic plate, such as precoated metallic plate, as the base material by using the metallic plate as the base material and forming the 1st and 2nd cured and coated films thereon.
Patent JP-H0680828-A (JP)
Title: Rubber composition
Inventor: HIGUCHI MOTOHARU
IPC: C08K3/34
Filed: 1992-09-02
Abstract: PURPOSE:To obtain a rubber composition of high hardness, excellent in roll processability, extrusion processability, weatherability and heat resistance, useful for automotive parts, etc., by incorporating an olefin rubber with a specified proportion of an inert silica-based white filler. CONSTITUTION:The objective rubber composition can be obtained by incorporating (A) 100 pts.wt. of an olefin rubber such as an ethylene-alpha-olefin rubber with (B) 20-200 pts.wt. of an inert silica-based white filler (pref. 0.1-0.5mum in mean particle diameter).
Patent JP-H0794334-A (JP)
Title: Deterioration diagnostic system and life predictive system of oil-immersed transformer
Inventor: HAYAMIZU EIJI
IPC: H01F27/00
Filed: 1993-09-21
Abstract: PURPOSE:To provide a system which is capable of easily diagnosing or predicting the current deterioration state or the life expectancy of an oil-immersed transformer at a low cost. CONSTITUTION:A gas quantity analyzer 2 measures the volume of prescribed gas component contained in insulating oil which is regularly or irregularly sampled from oil-immersed transformers 11 to 1n. A data processing device 3 estimates a variation range of dissolved gas quantity in a normal operation through a probability method basing on the past data of measured dissolved gas quantity, and the measurement result of current dissolved gas quantity is compared with the estimated variation range of dissolved gas quantity, whereby it is judged that the oil-immersed transformers 11 to 1n operate normally or not. When it is judged that the oil-immersed transformers 11 to 1n operate normally, the average polymerization degree retention rate of the insulating papers in the oil-immersed transformers 11 to 1n is calculated basing on time measurement results of the current dissolved gas quantity. Basing on a change in dissolved gas quantity with time, a time (termination of life) when a dissolved gas quantity reaches to a previously determined threshold value is predicted by calculation.
Patent JP-2001083062-A (JP)
Title: Method and device for measuring density variation
Inventor: YOSHIDA YOSHIO
IPC: G01N9/00
Filed: 1999-09-13
Abstract: PROBLEM TO BE SOLVED: To compute density variations with high accurately and speedily in micro parts of a sheet-shaped sample. SOLUTION: This device is provided with holding means 12 and 36-30 for holding a sheet-shaped sample S, laser distance finders 14 and 15 for measuring the thickness of the sample S in every micro unit of a prescribed area, divided virtually along first and second directions which alternately intersect a measurement region of the sample S, a radiation mass meter 16 for measuring the mass of the sample S by each micro unit, drive control means 13 and 40 for controlling the relative movements of the holding means 12 and 36-39, laser distance finders 14 and 15, and radiation mass meter 16 in the first and second directions, and a density computing part 34 for obtaining the density variations in the measurement region of the sample S by computing the density of the sample S by each micro unit,  on the basis of the measurement results of the laser distance finders 14 and 15 and radiation mass meter 16.
Patent JP-H0794531-A (JP)
Title: Lead frame carrying equipment
Inventor: TANOKURA SHINICHI
IPC: H01L21/50
Filed: 1993-09-22
Abstract: PURPOSE:To make the feed rate of a lead frame variable, by configuring the feed mechanism of the lead frame out of the rotational member for feeding the lead frame through a rotational motion and out of the driving source for driving the rotational member rotationally. CONSTITUTION:In case of the carriage of a lead frame, the rotation of a pulse motor 20 is controlled, and the lead frame is moved intermittently every predetermined feed rate. Therefore, by the phase control of the pulse motor 20, its fine rotation control, i.e., the feed control of the lead frame can be performed precisely. Further, in case of the carriage of the lead frame, a tension roller 22 is so rotated by a torque motor 23 provided on a supplying side P of a carriage path that the lead frame is returned to the supplying side P. As a result, the lead frame is energized in its anti-carriage direction (arrow M). Thereby, even though when a part to be manufactured is chaned the lead frame is altered too, the dealing with the alteration of the feed rate which is accompanied by the alteration of the lead frame can be performed easily.
Patent JP-2000075645-A (JP)
Title: Developing device, developing cartridge, and image forming device
Inventor: FUJITA AKIRA
IPC: G03G15/08
Filed: 1998-08-31
Abstract: PROBLEM TO BE SOLVED: To prevent a developer leakage caused by fusion of developer in the area where a developing blade and an end-periphery seal member overlap. SOLUTION: On the surface of the end-periphery seal member 58 bonded to a developing container 54, a face corresponding to the overlap between the developing blade 29Yb and the end-periphery seal member 58 is a recessed shape 100. And in the face corresponding to the overlap, the abutting pressure of the developing blade 29YB on a developing sleeve 29YS is 10-200 g/cm.
Patent JP-S63113137-A (JP)
Title: Fuel supply controlling method for internal combustion engine
Inventor: HIBINO YOSHITAKA
IPC: F02D41/12
Filed: 1986-10-30
Abstract: PURPOSE:To perform a fuel cut early enough, by equalizing this time value of the engine speed detected by the specified sampling timing with the detected value of up to the last time, and increasing a fuel-cut speed at the time of deceleration at a time when a difference between this time value and the equalized value is more than the specified one. CONSTITUTION:Each detected value out of a throttle opening sensor 23, a suction absolute pressure sensor 24, a water temperature sensor 26 and a crank angle sensor 25 is inputted into a control circuit 30, and a fuel cut at time of deceleration is carried out on the basis of throttle opening and engine speed via a fuel-cut solenoid valve 15. The control circuit 30 detects the engine speed on the basis of the count value made by a TDC signal of the specified cylinder, and when it is decreased from the last time value, it judges to be deceleration, and this time value and the weighted average value are weightedly equalized, thereby calculating the equalized value. When a difference between this time value and the equalized valve is more than the specified one, the basis engine speed that performs the fuel cut as suddent deceleration time is set to the higher value.
Patent JP-S62118943-A (JP)
Title: Die for casting
Inventor: TAKASAKI NORIMASA
IPC: B22D27/04
Filed: 1985-11-19
Abstract: PURPOSE:To accelerate the cooling in the thick walled part of a product and to improve the efficiency and quality of production by mounting a cooling pipe to mounting holes bored to either or both of a fixed die and moving die and passing cooling fluid therein. CONSTITUTION:Two through-holes 17b are axially bored into a tubular body 17a and hoses 20 are connected to the outside end of the holes 17b. Air or cooling fluid mixed with air and water is passed into the cooling route formed in such a manner to cool the dies. A turning lever 21 for turning the pipe 17 is fixed to the outside circumference on the hose connection side of the body 17a to control the cooling efficiency. The efficiency and quality of the production are improved by such dies.
Patent JP-H1188750-A (JP)
Title: Electronic camera
Inventor: SHIOZAKI TOSHIKATSU
IPC: H04N5/225
Filed: 1997-09-09
Abstract: PROBLEM TO BE SOLVED: To provide a miniaturized electronic camera which can effectively use the upper space of a camera main body and whose thickness dimension of the depth direction of the camera main body is reduced. SOLUTION: The electronic camera is provided with a beam splitter dividing luminous flux passing through a photographing lens and emitting them as plural luminous fluxes, an image pickup element converting one luminous flux emitted from the beam splitter into an electric signal and an optical finder using the other luminous flux emitted from the beam splitter for viewing an object image. The eyepiece section 11 of the optical finder is arranged on an upper part at the left end of the back of the camera main body. Thus, the space of the upper part of the camera main body is not cut by the finder and it can effectively be used. The optical path of the finder is bent midway and the thickness of the depth direction of the camera main body cant be thinned.
Patent JP-H06108827-A (JP)
Title: Exhaust emission control device of engine
Inventor: TAKAMI AKIHIDE
IPC: F01N3/08
Filed: 1992-09-29
Abstract: PURPOSE:To promote an NOX purification rate by increasing the amount of CO in the exhaust gas which is fed to a catalyst when the exhaust gas catalyst of an engine is in a prescribed NOX purification condition to utilize the oxidization reaction of CO, and expediting the NOX purification rate by raising catalyst temperature. CONSTITUTION:A catalyst device 3 for NOX purification in which noble metal is carried by metal-containing silicate is disposed in the exhaust pipe 2 of an engine 1. The respective detected signals of an engine water temperature sensor 5 and a catalyst temperature sensor 6 are inputted to an ignition control means 4 respectively. The CO amount control means of the ignition control means 4 increases CO amount in the exhaust gas which is supplied to the catalyst device 3 when the catalyst device 3 is in the prescribed NOX purification condition. In the catalyst device 3, Pt and Ir as noble metal are carried on zeolite. The CO amount control means 4 controls ignition of the engine 1 when catalyst temperature is less than the prescribed value to cause misfire intermittently, thus increasing CO amount in the exhaust gas.
Patent JP-H06108961-A (JP)
Title: Water turbine control device
Inventor: MATSUZAKI KENICHI
IPC: F03B15/04
Filed: 1992-09-29
Abstract: PURPOSE:To provide a control device for a water turbine, especially a Pelton turbine, enabling the safe discharge of overflow in the case of a control power source in a hydraulic power plant being lost or control oil pressure being lowered in the hydraulic power plant where a spillway is omitted. CONSTITUTION:Pressure water proportional to the water level of a head tank 5 with water taken in from an intake 8 acts as force upon a differential piston 19 so as to drive a distributing valve piston 10 by the deviation between this force and the resilience of a spring preset to balance with the neutral position of the distributing valve piston 10. The movement of a needle servo motor piston 4 is controlled by pressure oil flowing into a needle servo motor A3a from an accumulator 12 so as to regulate the opening of a needle A2a, thus regulating the discharge of overflow.
Patent JP-H02107752-A (JP)
Title: Controlling device for plating build-up amount of molten metal
Inventor: KAWAGUCHI TARO
IPC: C23C2/20
Filed: 1988-10-14
Abstract: PURPOSE:To make follow-up properties of dummy plate good and to obtain stable and uniform plating build-up amount by providing a means for driving a positioning control device on the basis of detected value of the edge positions of steel plate. CONSTITUTION:A dummy plate 3 is arranged to the outside part of a steel plate M on the same plane while keeping a small gap G. The dummy plate 3 is provided in the position of the height direction covering the spraying position of gas injected through a wiping nozzle 2. An edge detector 13A is provided in plating liquid 1 in the upstream side of the dummy plate 3 and an edge detector 13B is provided in the downstream side thereof and the side edge positions of the steel plate M are detected respectively. The signals of the respective detectors 13A, 13B and the signals of a pulling-up velocity detector 14 and a current position detector 16 of the dummy plate 3 are output to a positioning control device 17. Control signal is output to a servomotor 11 and the dummy plate 3 is followed up to the edge positions of the steel plate M. Thereby the plating build-up amount in the direction cutting a line is uniformized and the build-up in the edge of the coil can be prevented.