baber/WOPTO huggingface dataset:
Patent JP-H1154669-A (JP)
Title: Semiconductor device and lead frame used therein
Inventor: KUROSAWA AKIRA
IPC: H01L23/28
Filed: 1997-07-30
Abstract: PROBLEM TO BE SOLVED: To improve a close contact between a beat sink and sealing resin and also to improve fluidity of the sealing resin to reduce internal voids. SOLUTION: A semiconductor device 1 has a thick beat sink 5, with one surface fixed to a plurality of leads 3 via an adhesive tape 4 and the other surface exposed from a package 2. The semiconductor device 1 has projections 8, projecting from side surfaces of the radiation plate 5 along one surface of the belt sink, a plurality of first holes 9a in the projections 8 and second holes 9b in the adhesive tape 4 corresponding to the holes 9a. In this structure, the contact area between the leads and the beat sink 5 by the adhesive tape 4 and the contact area between the beat sink 5 and the package 2 can be increased, thus the contact of the beat sink 5 can be improved. Further, the formation of the holes 9a and 9b improves the fluidity of the sealing resin upon resin sealing, which prevents the occurrence of internal voids and failure of non-filling of the seal resin into the projections 8.
Patent JP-S6265373-A (JP)
Title: Semiconductor device
Inventor: TAKAMATSU AKIRA
IPC: H01L29/78
Filed: 1985-09-18
Abstract: PURPOSE:To improve the reliability of a semiconductor device and to increase the lifetime, by covering a polycide electrode of the semiconductor device with nitride film for protecting the polycide electrode. CONSTITUTION:An MOSFET 3 has a polycide electrode 5 located n a thin gate insulation film 4 of silicon dioxide, and an N<+> type source region 6 and a drain region 7 both formed n the surface of a silicon substrate 1. The electrode 5 is composed of two polycide layers consisting of a polycrystalline silicon layer 51 formed on the surface of the gate insulation film 4 and a layer 52 of a silicide of a high-melting metal superposed in the layer 51. The electrode 5 is covered with nitride films 510 and 520; particularly, the nitride film 10 covers the side face of the polycrystalline silicon layer 1 while the nitride film 520 covers the top and side faces of the silicide layer 52. These of the polycrystalline silicon layer 51 and of the silicide layer 52, respectively.
Patent JP-S6096735-A (JP)
Title: Arc heating method of molten metal
Inventor: OZAWA MICHIHARU
IPC: C22B9/20
Filed: 1983-10-31
Abstract: PURPOSE:To enhance heat efficiency, by applying rotary motion to the molten metal in a container while applying arc heating to said molten metal so as to make the depth of the cavity formed to the surface of the molten metal by said rotary motion longer than the length of the arc. CONSTITUTION:A molten metal 2 such as molten iron is stored in a ladle 1 and a rotary magnetic field is generated along the peripheral direction of the ladle 1 by the electromagnetic pole arranged to the outside of the ladle 1. The molten metal 2 receives rotary motion along the peripheral direction of the ladle 1 and a cavity is created to the center part of the ladle 1. In this case, the height (h) from the bottom part of the cavity to the edge of a peripheral built-up part is set so as to be made larger than the length (l) of an arc column 5. Therefore, radiation heat 6 generated from the arc column 5 is absorbed with the surface of the molten metal 2 built up along the inner wall of the ladle 1 and heat efficiency is enhanced.
Patent JP-H0253627-A (JP)
Title: Heating, cooling and air-conditioning device for automobile
Inventor: SUZUKI YOSHIAKI
IPC: B60H1/00
Filed: 1988-08-17
Abstract: PURPOSE:To enable to regulate the temperature of a seat together with the temperature inside an automobile or singly by feeding the air-conditioning wind from an air-conditioning equipment for heating and cooling inside the automobile into the inside of the seat through an air duct. CONSTITUTION:The air-conditioning wind 5 from an air-conditioning equipment for heating and cooling an automobile is sent into a seat 1 through a deflective air duct 2, and the temperature of a seat 1 is regulated together with the temperature inside the automobile or single, that is, the air-conditioning wind is absorbed into an inlet port 4 provided at the one end part of the air duct 2 and then discharged out of many outlets 3 provided at the intermediate part and the other end part so as to regulate the temperature of the seat 1.
Patent JP-S58105641-A (JP)
Title: Light receiving circuit
Inventor: YAMANE KAZUO
IPC: H04B10/293
Filed: 1981-12-17
Abstract: PURPOSE:To improve the performance of the titled circuit, by compensating for temperature of the optimum amplification factor of a photodetector and the optimum discrimination level of a discrimination circuit. CONSTITUTION:An optical input signal inputted from an input terminal Vin is converted into an electric signal by an avalanche photodiode 1, the electric signal is amplified by an amplifier 2 and the amplified signal is reproduced by a DC reproducing circuit 3. The reproduced signal is discriminated by a discrimination circuit 4 in accordance with a gain controlling voltage and discrimination level voltage generating circuit 7 and an output is generated from an output terminal Vout. On the other hand, the peak-to-peak value of the output  signal of the DC reproducing circuit 3 is detected by a peak-to-peak value  detecting circuit 6 and gain controlling voltage is applied from the circuit 7 to  a bias voltage controlling circuit 5 so as to keep the peak-to-peak value constant, and the circuit 5 determines the bias voltage of the avalanche photodiode  1. Thus temperature compensation is attained by the circuit 7.
Patent JP-S6181038-A (JP)
Title: Telephone device
Inventor: HAYASHI CHIKAHISA
IPC: H04B7/26
Filed: 1984-09-28
Abstract: PURPOSE:To improve the operability in a dark place by providing an illuminat ing device in a handset where functions are integrated, and a hand set is remov able from a case and lighting the illuminating device automatically to illuminate operation switches such as push buttons or the like if the handset is detached from a casing in the dark. CONSTITUTION:A handset 13 incorporates an off-hook detecting circuit 54, a lightness detecting circuit 62, a controller 63, and an illuminating device 64. When the handset 13 is detached from the casing, a terminal 65 is open, and a potential V1 becomes OV, and an output V2 goes to the high level. Meanwhile, a photoelectric element 621 is provided near push buttons 133 on the back of the handset 13, and its output V3 is lowered according as it is darker around the handset; and when the output V3 is lower than a reference potential V4, an output V5 of a comparator 631 goes to the high level. Consequently, if the handset 13 is detached from the casing and the lightness around it is lower than a prescribed value, and output V6 of a NAND gate 632 goes to the low level, and the illuminating device 64 is driven to illuminate operation switches such as push buttons 133 or the like, and the call operation is facilitated.
Patent JP-S6449129-A (JP)
Title: Actuator driver for optical pickup
Inventor: YOKOYAMA KENJI
IPC: G11B7/09
Filed: 1987-08-18
Abstract: PURPOSE:To suppress vibration due to the transient response of an actuator by providing the titled driver with a 2nd servo loop for feeding back the detecting output of a moving distance or moving speed of the actuator to a driving part to suppress movement independent from the control of a 1st servo loop. CONSTITUTION:An optical pickup 10 is constituted so that a laser beam 38 projected from a laser diode 36 radiates a recording face of a disk 44 through a grating 40, a beam splitter 42 and an objective lens 16 and its reflected light is reversely advanced and made incident upon a four-divided detector 50 through a beam splitter 42 and a cylindrical lens 48. A diagonal sum signal which is a detecting output from the detector 50 goes to tracking error signal through a differential amplifier 54. The signal is inputted to a tracking coil 24 through a compensating amplifier 56, a switch 58, an adder 64, and a drive amplifier 60 to form the 1st servo loop and execute tracking control. On the other hand, an output from a speed detecting coil 22 is inputted to the coil 24 through the adder 64 and the amplifier 60 to form the 2nd servo loop and suppress vibration due to the transient response of the actuator.
Patent JP-S6361821-A (JP)
Title: Gas cooker
Inventor: NANGO HARUYUKI
IPC: F24C3/12
Filed: 1986-08-29
Abstract: PURPOSE:To improve the quality of finishing of boiled rice and shorten the cooking time by estimating the amount of rice to be cooked from the time period required for a predetermined temperature span, and controlling the cooking by computing the time of completion of cooking on the basis of said estimation. CONSTITUTION:When the temperature of a rise cooker rises to an extent that a thermistor 3 detects the temperature theta0=90 deg.C, a timer 30 is started. When the thermistor 3 thereafter detects the temperature theta1=100 deg.C, the timer 30 is stopped. Then, a computing means of a micro computer 36 multiplies the time T counted by the timer 30 by (m). The time mT is stored in a memory 31. Further, the micro computer 36 as a sensing means determines the moment of boiling point from a predetermined reference. Because of this, heating can be continued at a high flame intensity level without reducing the calorific value after the boiling has set in until the time mT elapses, the temperature reduction is delayed by a length corresponding to mT. Therefore, as the boiling temperature can be maintained during the time period mT, the quality of boiled rice can be improved.
Patent JP-H0869188-A (JP)
Title: Transfer current supply circuit for electrophotographic printer
Inventor: KOSHIO TAKASHI
IPC: G03G15/16
Filed: 1994-08-30
Abstract: PURPOSE: To prevent a transfer defect caused by the change of a transfer roller impedance due to the humidity change at the time of performing the image transfer to a paper sheet with use of the transfer roller. CONSTITUTION: The transfer current supply circuit for the electrophotographic printer is provided with the constant current source 2 for supplying the constant current to transfer roller 3 for transferring the toner developed on the photoreceptor drum 4 as an electrostatic latent image carrier to the paper sheet and the control part 1 for controlling the output of the constant current source 2. Then, the device is provided with the humidity recognition part 8 for recognizing either the ambient humidity or the surface temp. of the recording medium, otherwise both of them, and the current transformation circuit 9 for transforming the constant current to the transfer current 7 having the current value corresponding to the humidity by inputting the current variable signal 10 from the humidity recognition part 8 to the constant current source 2.
Patent JP-H0254117-A (JP)
Title: Meter for vehicle
Inventor: FUJIOKA SHIRO
IPC: G01D7/00
Filed: 1988-08-18
Abstract: PURPOSE:To perform necessary display even when a power supply is cut off by providing a display device holding a display state of predetermined data even when the application of display voltage is cut off. CONSTITUTION:The output of the fuel amount sensor 3 provided to a fuel tank 1 and imparting the output corresponding to the position of a float 2 which corresponds to a fuel level is converted to a digital value by an A/D converter to be read in a computer 5. Further, the relation between the output of the sensor 3 and the residual amount of the fuel tank is preliminarily written in the memory 6 of the computer 5. The computer 5 reads the real amount of fuel from the memory 6 on the basis of the output subjected to A/D conversion of the fuel amount sensor 3 to output the data thereof to the decoder driver 8 of a fuel meter 7. The decoder driver 8 drives an electrochromic display (ECD) device 9 having memory function. Since the ECD 9 has display holding function, that is, memory function, a display state of a fuel amount is held even when a power source is cut off.
Patent JP-2001031925-A (JP)
Title: Screw-adsorbing tape and tape installer using same
Inventor: HARA SHUICHI
IPC: C09J7/02
Filed: 1999-07-19
Abstract: PROBLEM TO BE SOLVED: To provide a novel screw-adsorbing tape which does not undergo rapid deterioration of screw-holding powers, therefore can dispense with frequent replacement and is free from a risk of peeling from a tip of a driver to be left on the top of the screw, and to provide a tape installer that can easily and efficiently attach the screw-adsorbing tape to the tip of the driver. SOLUTION: The subject screw-adsorbing tape has, on the surface opposite to the surface having a pressure-sensitive adhesive layer formed thereon, a screw-adsorbing layer, which comprises a soft resin having a JIS A hardness of 15 or less and a 50% tensile stress at 20 deg.C of 1.8 kgf/cm2 or less and is forced into a groove at the top of a screw and contact-bonded in a state attached, by tack strength of the pressure-sensitive adhesive layer, to the tip of a driver thereby sticking to the screw and holding it at the tip of the driver. The subject tape installer unwinds the screw-adsorbing tape wound in a roll form while peeling off a peeling layer laminated on the pressure-sensitive adhesive layer and attaches the tape on the tip of a driver.
Patent JP-S6363437-A (JP)
Inventor: HARADA HIDEO
IPC: G01S15/89
Filed: 1986-09-02
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H1031328-A (JP)
Title: Both-side image forming device
Inventor: YAMAMOTO MITSUO
IPC: G03G15/00
Filed: 1996-07-16
Abstract: PROBLEM TO BE SOLVED: To excellently form images for both sides with high productivity, with a simple constitution, further, to facilitate the maintenance work of an involved device and to miniaturize an image forming part for forming a recorded image on the rear side of a recording sheet and moreover, the whole of an image forming device. SOLUTION: This both-side image forming device is provided with a front side image forming part 2 for forming the recorded image on the front surface of the recording sheet 1 and a rear side image forming part 3 which is located on a side opposite to the front side image footing part 2 across the carrying path of the recording sheet 1 and for forming the recorded image on the rear side of the recording sheet 1 with an intermediate transfer body 4 or directly and constituted so that the recording sheet 1 is held/carried by the intermediate transfer body 4 or the image carrier 5 of the rear side image forming part 3, for transferring the recorded images to the front and rear sides of the recording sheet 1.  In the secular use of the involved device, the durability of a part 3a constituting the rear side image forming part 3 is set to be lower than that of the part 2a of the front side image forming part 2.
Patent JP-S6447902-A (JP)
Title: Paper-thickness measuring device
Inventor: OTAKE MAKOTO
IPC: G07D7/00
Filed: 1987-08-19
Abstract: PURPOSE:To omit adjustment of a gap between rollers in double-feed check of paper leaves having the different thicknesses, by measuring an output voltage from a voltage output means based on the movement of a lever. CONSTITUTION:When a paper leaf 1 passes between a movable roller 4 and a fixed roller 5, the roller 4 is moved by the thickness of the paper, and a lever 9 is moved. Then, a voltage, which is proportional to the moving angle of the lever 9, is outputted from a voltage output means 10. In general, the paper leaf has the ordinary thickness of 0.2mm or less. The output voltage for the thickness can be linearly determined with the output means 10 within said range. The voltage is measured, and the thickness of the paper leaf can be measured. When the double-feed detecting preset value in correspondence with the kind of the paper leaf 1 is determined, the thickness of the paper leaf 1 having the different thickness can be checked. The adjustment of a gap is not required. The paper leaves 1 of a plurality of the different kinds can be checked.
Patent JP-S6183973-A (JP)
Title: Self-diagnostic apparatus of engine control apparatus for motor car
Inventor: NAJIMA HIROHISA
IPC: G01R31/28
Filed: 1984-10-02
Abstract: PURPOSE:To attain the cost reduction of the titled apparatus, by performing self- diagnosis by forcibly turning the control output to control machinery ON and OFF. CONSTITUTION:The output signal of an output circuit B, of which the output level changes between at the time when the control output issued to control machineries A1-A4 at the time of self-diagnosis is constant and at the time when said control output changes by 1, is inputted to the single self-diagnostic input port of a control apparatus C. The control output to the control machineries A1-A4 is temporarily prohibited by a self-diagnostic output oscillation means D to emit a self-diagnostic control signal having an ON-state and an OFF-state to one control machinery selected according to a predetermined order and, from the level change of the signal inputted through the output circuit B, a diagnostic means E diagnoses whether the control output is normal. Therefore, because a signal can be inputted to the apparatus C by using a single signal circuit, miniaturization is attained. The control output is forcibly turned ON and OFF in spite of the control characteristics of the control machineries A1-A4, the diagnosis of the output signal of the control machinery can be performed by same diagnostic sequence and cost reduction can be attained.
Patent JP-S6450742-A (JP)
Title: Squirrel-cage induction motor
Inventor: KANDA AKIO
IPC: H02P23/00
Filed: 1987-08-18
Abstract: PURPOSE:To shorten axial length by making the outside diameters of a first stator core and a second stator core differ and the outside diameters of first and second stator windings are also made to differ. CONSTITUTION:The outside diameter D of a first stator core 18A is made larger than that (d) of a second stator core, and a first stator winding 8A is arranged so as to cover the outer circumferential side of a second stator winding 8B. Both ends of a rotor conductor 5 are short-circuited by end rings 6A, 6B. Accordingly, the first and second stator windings 8A, 8B are lapped, thus shortening axial length.
Patent JP-H0253399-A (JP)
Title: Multi-transmitting and receiving device
Inventor: MORI SHIGERU
IPC: H04J3/00
Filed: 1988-08-18
Abstract: PURPOSE:To detect the abnormality of a power source system with including electric parts in a receiving side while wiring is reduced and to send the abnormality to a transmitting side by switching detecting information transmitted through a transmitting path, to be receivable in correspondence to the high and low of a control command pulse. CONSTITUTION:The receiving part of a transmitting side 1 is switched to be receivable in correspondence to the high and low of the control command pulse. Then, during intervals between the control command pulse, the detecting information, which show whether the power source system is normal or abnormal with including the electric parts driven in a receiving side 2, are transmitted from a transmitting part 29 of the receiving side 2 through transmitting pathes 3a-3c to the receiving part of the transmitting side 1. Thus, while saving the wiring, an abnormal spot is identified when abnormality is generated in the power source system to include the electric parts, then, the countermeasure of repair, etc., can be executed.
Patent JP-H0953818-A (JP)
Title: Gas drift prevention plate
Inventor: TOYOMARU MAKOTO
IPC: F23J13/00
Filed: 1995-08-11
Abstract: PROBLEM TO BE SOLVED: To achieve prevention of the accumulation and back flow of ash and lowering of the maximum speed concerning a gas drift prevention plate applied for a part having a heat exchanger tube of a rear flue of a boiler. SOLUTION: A mounting plate 9 is welded securely near a group 3 of heat exchanger tubes of a rear flue wall pipe 2 of a boiler and a gas drift prevention plate 6 is mounted being inclined by an angle θby a support member 7. A refractory material 8 is mounted on the mounting plate 9. Traditionally, the gas drift plate 6 is mounted at the right angle to the flow of a gas. But in this invention, the inclination of the gas drift plate by the angle θ can prevent not only the accumulation of ash but also back flow thereof behind the gas drift prevention plate thereby lowering the maximum speed as well.
Patent JP-S6363599-A (JP)
Title: Flux cored wire for welding
Inventor: TAKEUCHI HIROKIMI
IPC: B23K35/40
Filed: 1986-09-03
Abstract: PURPOSE:To uniformize the structure of a deposited metal and to improve weldability by compressing raw material powder under a prescribed compressive force to form a green compact, and filling the binder particulate matter formed by crushing the green compact into a metallic sheath. CONSTITUTION:A horizontal rolling mill 11 is provided and a crusher 19 having a pair of crushing rolls 17, 18 is disposed; furthermore, an oscillation type packing machine 25 is installed. The raw material powder 10 of a flux for welding having about 60-100 mesh grain size is supplied to the rolling mill 11 and is rolled between rolls 14 and 15 under >=2.0ton/cm to form the green compact 16. The green compact 16 is then crushed to the binder particulate matter 20 by the machine 19. The particulate matter is packed into the metallic sheath 1 by the oscillation type packing machine 25 provided with an oscillation table 21, leaf springs 23, 24, a driving cylinder, etc. Since the dispersion of the flux components in the longitudinal direction of the wire is eliminated, the structure of the deposited metal is uniformized and the weldability is improved.
Patent JP-2000018431-A (JP)
Title: External water pressure reduction facility for pipe and its execution method
Inventor: ARITA KENICHI
IPC: E02D31/10
Filed: 1998-07-06
Abstract: PROBLEM TO BE SOLVED: To enlarge the catchment area of a catching part and to improve the outside water catchability in a facility comprising a catchment area for collecting the outside water bled out onto a pipe surface from the ground at the outside of the pipe buried in the ground, by forming the drainage part into the band shape with a mat member having the flexibility and water permeability. SOLUTION: Relating to a pipe body 4 such as a hydraulic iron pipe or the like which is mounted in a tunnel 1 digged in the ground through a timbering 2 and around which the concrete 3 is placed, a catching part 50, a drainage part 60, a connection pipe 8 and a by-pass 9 are mounted as an outside water pressure reducing equipment. The catching part 50 is formed into the band shape with a mat member having the water permeability, and comprises a core material and a filter.  In a case when the concrete 3 is placed around the pipe body 4, the outside water fleeding from the ground onto an outer surface of the pipe body through the concrete 3 flows into the approximately triangular voids formed at both side edges of the catching part 50, then uniformly entered into the water permeable space of the catching part 50, and discharged to the external through the connection pipe 8 and the drainage part 60.
Patent JP-H0625058-A (JP)
Title: Liquid crystal compound and composition
Inventor: SATO MASAHIRO
IPC: C09K19/32
Filed: 1992-07-08
Abstract: PURPOSE:To obtain a new compound useful as a liquid crystal material used in a liquid crystal display element. CONSTITUTION:The compound of formula I [R<1> is 1-18C alkyl; NAP is 2,6- naphthylene; (n) is 0-9; * indicates asymmetric carbon; R<2> is 2-10C alkyl]. The compound of formula I is obtained by reacting a compound of formula II with a compound of formula III in an inert gas atmosphere using a Pd catalyst. The compound of formula I can be used as a component of a liquid crystal composition capable of exhibiting a chiral smectic C phase to provide a liquid crystal composition good in orienting properties without any zigzag defects and a liquid crystal display element at a high contrast ratio can be obtained. Since other smectic phases are not exhibited in a low-temperature region, this compound can be used as a component of the chiral smectic C phase liquid crystal composition to extend the chiral smectic C phase.