baber/WOPTO huggingface dataset:
Patent JP-H01225169-A (JP)
Title: Manufacture of field effect transistor
Inventor: ARAI SHIGEMITSU
IPC: H01L29/80
Filed: 1988-03-04
Abstract: PURPOSE:To reduce a parasitic resistance and to enhance the breakdown strength of a drain by forming in advance a recess, implanting acceptor ions to an operating layer forming region, and forming a P-type layer directly under the operating layer of the recess. CONSTITUTION:Doner ions are implanted to one main surface of a semi- insulating semiconductor substrate 101 to form an operating layer 23, and a recess 15 is formed on a gate electrode forming region of the layer 23. Then, acceptor ions 16 are implanted to at least part of the layer 23 including the recess 15 to form a P-type layer 27, and the substrate 101 is annealed. Accordingly, although it has the thick layer 23, a high concentration thin P-type layer 27 can be formed directly under the layer 23 of the region formed with the recess 15. Thus, a high drain breakdown strength and a low parasitic resistance can be realized.
Patent JP-H09242655-A (JP)
Title: Igniting method in multi-cylinder engine
Inventor: YAMAMOTO TAKAO
IPC: F02P5/153
Filed: 1996-03-07
Abstract: PROBLEM TO BE SOLVED: To increase engine output by making the ignition timing of each cylinder of a serial multiple-cylinder engine to differ from each other according to its cooling condition. SOLUTION: No. 1 cylinder and No. 4 cylinder positioned at both ends of the cylinder row of serial four-cylinder engine, have larger dimension brought in contact with cooling water so as to be comparatively set at a low temperature, and No. 2 cylinder and No. 3 cylinder positioned on the inside of the cylinder row have smaller dimension brought in contact with cooling water so as to be set at a comparatively high temperature. The low temperature No. 1 and No. 4 cylinders have high knocking limits so that the advance phase amount of ignition timing is set larger, and the high temperature No. 2 and No. 3 cylinders have low knocking limits so that the advance phase amount of ignition timing is set smaller. Hereby, engine output can be increased to a maximum extent while avoiding occurrence of knocking.
Patent JP-H08242612-A (JP)
Title: Low-deck tractor
Inventor: IKEDA KAZUNARI
IPC: B62D55/10
Filed: 1995-03-09
Abstract: PURPOSE: To provide a low-deck tractor capable of moving a working machine vertically by maintaining the required height above the ground of an elevation device without interference with fender devices, etc., facilitating mode interchange between standard type and low-deck type, and securing the lifting height of the rear working machine even in the case of low-deck mode. CONSTITUTION: This low-deck tractor is equipped with a rear axle housing 2 revolvable around a final driving shaft 3, a fixing member to fix the housing 2 on the machine body 1, left and right fender devices 10 covering both the sides and upper surface of rear wheels 5, a connecting member 11 to mutually connect these fender devices 10, and an elevation device 7 for a working machine. When the vehicle height is to be lowered by horizontally revolving the housing 2 around the final driving shaft 3, the left and right fender devices 10 and the connecting member 11 are integrally moved upward as a unit, and the elevation device 7 is maintained at a required height above the ground without interference with these fender devices 10 and the connecting member 11, thus enabling the working machine to be moved vertically.
Patent JP-H11232744-A (JP)
Title: Inserting and ejecting type tray
Inventor: SATO MASAKI
IPC: G11B17/056
Filed: 1998-02-16
Abstract: PROBLEM TO BE SOLVED: To load and unload a loading matter to and from the inside of a tray even at either time of supplying a power or stopping a power by making a tray the duplicated type tray of an outer tray and an inner tray and making either of them insertable and ejectable with an electrically driving system and making the other one insertable and ejectable with a manually driving system. SOLUTION: At the time of supplying of an utility power, a motor-driven driving mechanism is actuated by the On of a make-and-break switch 6 and an outer tray 4 is pushed out while being integrated with an inner tray 5. In this state, the loading, the unloading or the exchanging of a CD-ROM is performed as necessary and after a prescribed processing, the outer tray 4 is housed into a cabinet 1 integrally with the inner tray 5. At the time of stopping the power, the inner tray 5 is pulled out from the cabinet 1 by a manual operation in a state in which the outer tray 4 is kept housed in the cabinet 1 and after a prescribed processing, the inner tray 5 is pushed into the inside of the tray 4 by being pushed in with the manually operating system.
Patent JP-S56146131-A (JP)
Title: Pressurizing device
Inventor: YOSHIDA SHIYUNTAROU
IPC: G03B27/18
Filed: 1980-04-15
Abstract: PURPOSE:To pressurize an object always with fixed pressing force by providing a switching device which detects the rate of deformation of the spring of a spring type supporting device when it reaches a prescribed rate and inverts the driving direction of a reversible power device. CONSTITUTION:An electric pad 5 which is a stationary pressurizing member and a pressure plate 4 which opposes to said pad 5 and pressurizes the object P sandwiched between these cooperatively with this are provided. Also, a lever 10 which engages the pressure plate 4 in the intermediate part, a reversible motor 15 which engages one end of this lever 10 and selectively drives the lever 10 in the pressurizing direction of the pressure plate 4, and a microswitch 28 which detects the rate of deformation of the spring 22 of a spring type supporting device including a spring flexibly supporting the reaction to be given by the pressure plate 4 to the lever 10 at the other end of the lever 10 by means of a sensing lever 25 etc, when said rate attains the prescribed rate and inverts the driving direction of the reversible motor 15 are provided.
Patent JP-H01223309-A (JP)
Title: Magnetic encoder
Inventor: SEI MAKIO
IPC: G01D5/245
Filed: 1988-03-03
Abstract: PURPOSE:To provide a small-scale highly accurate magnetic encoder capable of simultaneously outputting a plurality of detection signals, by providing increment phases different in the number of magnetic poles in plural rows and forming the gap with the magnetism-sensitive part opposed to the increment phase having a large number of magnetic poles so as to make the same larger than that with the magnetism-sensitive part opposed to the increment phase reduced in the number of the magnetic poles. CONSTITUTION:Magnetism-sensitive parts 32, 33 are respectively opposed to increment phases 12, 13 through gaps 92, 93. Therefore, when magnetism- sensitive parts 31-33 are provided on the same plane, the increment phase 13 is formed on a rotary drum 1 so that the radius thereof is smaller than that of the increment phase 12 on the rotary drum 1. An absolute phase 11 is formed so that the diameter thereof becomes the same to that of the increment phase 12. By this method, output voltages almost equal in a level can be obtained in the magnetism-sensitive parts 31-33 and a plurality of detection signals can be simultaneously outputted with high accuracy by a small-scale magnetic encoder.
Patent JP-H11229434-A (JP)
Title: Revolving construction machine
Inventor: SUNAMURA KAZUHIRO
IPC: E02F9/18
Filed: 1998-02-16
Abstract: PROBLEM TO BE SOLVED: To shorten the total length of a revolving frame and reduce the total revolving radius and enable an operator to revolve the upper revolving body at ease. SOLUTION: A cab 32, a cover 39, a counterweight 40, etc., are fitted to a revolving frame 23 of the upper revolving body 21. The counterweight 40 is formed by casting. The distance from the revolving center 0 to the corner 32B of the cab 32 is made nearly equal to the distance from the revolving center 0 to the rear face side of the counterweight 40. A handle 37 projecting to the outside of the revolving radius is attached at the corner 32B of the cab 32, and the rear face side of the counterweight 40 is arranged within an imaginary circle 22 with a radius R3 decided by the handle 37.
Patent JP-H01223813-A (JP)
Title: Spatial filter
Inventor: ENARI MASAHIKO
IPC: H04N19/42
Filed: 1988-03-03
Abstract: PURPOSE:To obtain a final output in a round-off form and to reduce the deterioration in the picture quality by outputting a value being addition/subtraction of a prescribed constant to/from a product in a coefficient ROM. CONSTITUTION:A conventional multiplier is revised into an arithmetic circuit 73 having a function of multiplication and addition. That is, the operation is applied as an output of (xXk4+A/2) of the arithmetic circuit 73 with respect to an input (x). Concretely, the coefficient ROM having such relation between a memory address and a stored value is used. For example, let (x) be an 8-bit data being a value of 0-255, k4 be 15, a divisor of a divider 76 be 16, then with an input of the (x) to an address of the said coefficient ROM, an output corresponding to (xX15+8) is outputted. Thus, the result of final operation is formed to be in a form of round-off without increasing the hardware constitution and the video signal processing with less picture quality deterioration is attained.
Patent JP-H10245570-A (JP)
Title: Process for fractionating crude oil
Inventor: OGAWA HISATOSHI
IPC: C10L3/12
Filed: 1997-03-05
Abstract: PROBLEM TO BE SOLVED: To provide a process for fractionating crude oil whereby the amount of an off-gas produced can be reduced, and the yields of LPG, light gasoline or heavy gasoline can be increased. SOLUTION: The overhead fraction 6 from an atmospheric distillation tower 3 is separated into a gas fraction 15 and a mixture 21 containing LPG and full-range gasoline by means of a separation drum 13. In a stabilizer 22, the mixture is separated into LPG 23 and a full-range gasoline fraction 24, and the fraction 24 is separated into light gasoline 26 and heavy gasoline 27 by means of a splitter 25. At least portions of the gasoline 26, the gasoline 27 and the fraction 24 are added to the overhead fraction 6 from the tower 3 through lines 30, 31 and 35. Thus, the gas fraction (off-gas) leaving from the drum 13 can be decreased.
Patent JP-S59176902-A (JP)
Title: Variable corner waveguide
Inventor: AOKI SHIGEO
IPC: H01P1/02
Filed: 1983-03-28
Abstract: PURPOSE:To prevent the deterioration of transmission characteristics by providing four shafts and three posts and always holding a reflector vertically to a bisector on an XY plane. CONSTITUTION:Center lines 11a and 12a of pipes 11 and 12 respectively cross each other, and the 1st shaft 21 is provided at the intersection of both center lines 11a and 12a. The 2nd and 3rd shafts 22 and 23 are set at a position which is away from the shaft 21 by a distance l1, and the 4th shaft 24 is supported by the lat and 2nd posts 25 and 26 at a point away from the shaft 21 by a distance l2. The 3rd post 27 is fixed to the shaft 21 through its end of one side with a slit bearing part 28 formed at the other end and supports the shaft 24 slidably in the lengthwise direction. Therefore the angle phi formed with lines 11a and 12a can be changed within a certain range. Thus the angles theta1 and theta2 formed with the lines 11a and 12a and a center line 27a of the post 27 are always equal to each other regardless of the angle phi. A reflector 29 is fixed to the post 27 via the pipe 11 and therefore always vertical to a bisector on the XY plane.
Patent JP-H08215895-A (JP)
Title: Powder molding press device and its powder molding press method
Inventor: KOJIMA KAZUNARI
IPC: B30B11/04
Filed: 1995-02-15
Abstract: PURPOSE: To suppress the deformation after sintering and to prevent the occurrence of crack, etc., with a powder molding press device by simultaneously changing over an upper punch and a lower punch to pressurization in the process of lowering the die in a die plate operating cooperatively with a lower ram and an upper punch disposed at an upper ram. CONSTITUTION: The die 29 and the die plate 27 begin to descend simultaneously at the same descending speed as the descending speed of the upper punch to apply pressurization on the lower part of the boss part of the powder in the die 29 at the point of the time the upper punch 23 brings into contact with the upper part of the die 29. Next, the upper punch 23 and the die 29 descend at the specified ratio and the powder is simultaneously pressurized by the upper and lower punches 23 and 31 in midway of the compression. While the air in the powder is allowed to escape from the boss part side toward the upper part of the flange part side, the intermediate part near the boss part and the flange part is solidified. Finally, the die 29 and the die plate 27 stop by coming into contact with a stationary plate 26 and only the upper punch 23 descends to press the flange part of the powder.  As a result, the air in the powder is allowed to escape successively from downward to upward.
Patent JP-H0621876-A (JP)
Title: Private branch exchange constituted of cordless telephone, base station and telephone transmitter-receiver
Inventor: KOSMANN ERWIN DIPL ING
IPC: H04W84/10
Filed: 1993-03-11
Abstract: PURPOSE: To minimize the circuit and the cost in the private branch of exchange configured by a plurality of cordless telephone sets where a duplex communication radio channel is provided between each transmitter-receiver and a base station for a call and information signal exchange. CONSTITUTION: A sole duplex communication radio channel is provided for all transmitter-receiver sets M1-M7 arranged in one base station BS. The base station having been suitable only for in pairs with a single cordless telephone set is used for a private branch of exchange consisting of a plurality of cordless telephone sets M1-M7 without revising the hardware.
Patent JP-H02228392-A (JP)
Title: Method for monitoring concentration of odorant in city gas having sulfide odorant incorporated therein
Inventor: TAGUCHI FUJITAKA
IPC: C10L3/10
Filed: 1989-03-01
Abstract: PURPOSE:To continuously and economically determined the concentration of the odorant in city gas having a sulfide odorant incorporated therein by using an odor sensor to measure the sulfide odorant in a sample of the gas mixed with air and having regulated pressure and temperature. CONSTITUTION:On the downstream side of a heating means 12, a measuring line 7 is divided into two, each of which is provided with an odor sensor 13 and a switching sensor 15. When the sensitivity of the odor sensor 13 on one side lowers, it is possible to switch over to the odor sensor 13 on the other side by means of a change-over valve 16 to make measurement. Air is blown into the measuring line out of operation through a regeneration line 17 to perform regeneration. The regeneration is effected by turning a change-over valve 18 by means of a controller 14. In this system, after the flow rate and pressure of air and a sample gas respectively are regulated with flowmeters 3 and pressure regulators 4, the air is mixed with the sample gas at a ratio less than that of detonating gas, this mixture is adjusted to a certain temperature by means of the heating means 12, and the concentration of the odorant is determined with the odor sensor 13.
Patent JP-S60196407-A (JP)
Title: Solenoid-operated proportional flow control valve with pressure compensating part
Inventor: INOUE KAZUO
IPC: F16K31/383
Filed: 1984-03-19
Abstract: PURPOSE:To make flow control from neutral attainable, by making up an interconnecting passage between a pressure oil source and a pressure receiving chamber of a flow control spool into being throttled by a poppet-type pilot valve, while interconnecting this pressure receiving chamber to a drain port. CONSTITUTION:Each of poppet-type pilot valves 25 and 26 for throttling is installed in position between the outlet side of a pressure compensation part X and pressure receiving chambers 17 and 18 of a flow control spool 10. And, these symmetrical pressure receiving chambers 17 and 18 are interconnected to each of symmetrical drain ports 13 and 14. With this constitution, since a fluid is always flowing in space between these symmetrical pressure receiving chambers 17 and 18 and a pressure oil source, solenoids 27 and 28 are energized with current from neutral, producing a difference in pilot pressure inside these symmetrical pressure receiving chambers 17 and 18, and thereby the flow control spool 10 can be moved in both directions from the neutral. Therefore, flow control is performable from the neutral without installing any other pressure oil source or solenoid valve.
Patent JP-H01224460-A (JP)
Title: Fuel injection valve of internal combustion engine
Inventor: ASAYAMA YOSHIAKI
IPC: F02M69/00
Filed: 1988-03-03
Abstract: PURPOSE:To enhance the fuel injection characteristic in high-speed operation by furnishing No.1 fuel jet, which opens at the tip of a nozzle and is opened and closed by a needle valve, and No.2 fuel jet which opens at the periphery of the nozzle and is opened and closed by a holder for fuel injection valve. CONSTITUTION:A fuel injection valve 4a is formed by winding a solenoid 11 incorporated in a housing 10 round a fixed core 12, wherein a compression spring 13 is interposed between this fixed core 12 and a needle valve 14. This needle valve 14 is lifted by supplying current to the solenoid 11 and sunk by the mentioned compression coil spring 13 with shutting-off of the supplied current. At this time, No.1 fuel jet 16 which opens at the tip of a nozzle 15 is opened and closed with rise and sink of the needle valve 14. On the other hand, No.2 fuel jet 17 which opens at the periphery of the nozzle 15 is opened by a holder 6a installed between a suction pipe 2a and the nozzle 15 when the internal combustion engine is operated at a high speed.
Patent JP-H04286344-A (JP)
Title: Observing device for semiconductor chip
Inventor: KAWAGUCHI SHINTARO
IPC: H01L21/60
Filed: 1991-03-15
Abstract: PURPOSE:To prevent dust from adhering to outer leads, which are led outside from a semiconductor chip, and to observe precisely the outer leads by a camera. CONSTITUTION:Outer leads L of a semiconductor chip P attracted to a nozzle 27 of a transfer head 26 are made to land on a landing material 21 like a glass plate and are observed by a camera 6. At that time, the charge on the landing material 21 is eliminated by an ion generator 31 which is used as an antistatic means. Thereby, dust in the air is attracted to the landing material 21 and this dust is prevented from adhering to the outer leads L.
Patent JP-H03253275-A (JP)
Title: Oscillation wave linear motor
Inventor: KIMURA ATSUSHI
IPC: H02N2/00
Filed: 1990-03-02
Abstract: PURPOSE:To stabilize a contact state of oscillation bodies and a moving body even if there is variation in the thickness of the moving body such as a sheet, etc., by bringing a linear section side which is not used for driving the moving body into contact with a fixed section through the moving body, providing roller members to prevent the inclination of a vibrator. CONSTITUTION:When a contact surface of rollers 15 and 16 and a sheet 5 is level with a contact surface of oscillation bodies 3 and 4 and the sheet 5, even if there is a variation in the thickness of the sheet 5, the upper oscillation body 3 is always level, contact with the sheet forms a stabilized surface contact, and smooth delivery of the sheet can be made. Roller shafts 13 and 14 are joined to the outsides of the oscillation bodies 3 and 4, but they may be joined to the insides of them. According to the constitution, when the roller shafts 13 and 14 are joined to positions of neutral surfaces of the oscillation bodies 3 and 4, oscillation does not largely disorder, smooth driving can be made, and an efficient linear motor can be obtained.
Patent JP-H05255994-A (JP)
Title: Ceiling
IPC: E04B9/04
Filed: 1992-03-10
Abstract: PURPOSE:To enhance the workability by providing a plurality of ceiling plates each provided at its opposite sides with base bars, a plurality of ceiling plate support bars which are arranged in parallel and having rail parts for receiving end parts of the base bars. CONSTITUTION:Base bars 1 are provided at the opposite sides of a ceiling plate 2 and at the enter thereof. A pair of channel stool bars 3, 4 are laid in parallel with each other so as to be spaced from each other, the front ends of their flanges being faced to each other so as to form ceiling plate support bars 5. A pair of cut-outs 1a in each of the base bars are engaged with rails parts formed by the lower flange parts of the channel steel bars 3, 4. Further, the ceiling plate 2 is pushed in the direction of the arrow Y so that the support bar 5 is moved toward the other end side of the support bar 5, and thereafter, similar steps are repeated so as to a plurality of such ceiling plates 2 are attached to the support bars 5.
Patent JP-H05245664-A (JP)
Title: Laser beam machine
Inventor: FUJIWARA SHIGENORI
IPC: B23K26/00
Filed: 1992-03-10
Abstract: PURPOSE:To avoid direct reflection and to prevent reflected light from damaging optical parts and peripheral equipments by forming a pattern to be marked by laser beam on a material to be worked and providing a pattern mask worked so that its surface absorbs and disperses the laser beam. CONSTITUTION:This device is provided with a laser beam machine 10 which oscillates laser beam L, a transmitting optical system 12 which transmits the laser beam from this laser beam machine and a converging optical system which converges the laser beam sent by this transmitting optical system. It is, further, provided with a pattern mask 13 worked so that the surface of the pattern formed to be marked by this laser beam absorbs and disperses the laser beam. Since direct reflection of the laser beam on the surface of the pattern mask can be prevented, damages of the optical part and its peripheral equipment of a resonator, etc., of the transmitting optical system or the laser beam machine and danger to the human body can be prevented.
Patent JP-H04286620-A (JP)
Title: Extruder
Inventor: NAKAGAWA TERUBUMI
IPC: B29C48/92
Filed: 1991-03-15
Abstract: PURPOSE:To provide an extruder capable of measuring easily, accurately and continuously the conditions of wear for the purpose of finding the time for adjustment and replacement of thrust bearings of the extruder. CONSTITUTION:The wear amount of thrust bearings 3a, 3b, 3c, 3d, 6a and 6a can be measured by taking into consideration that screw shafts 1a and 1b and output shafts 2a and 2b are moved backward by the length equivalent to the amounts and measuring the displacement of metal pieces 4a and 4b installed on the output shafts 2a and 2b by using proximity sensors 5a and 5b set at the back of the pieces.
Patent JP-H08250962-A (JP)
Title: Lc filter
Inventor: AKACHI YOSHIAKI
IPC: H01F17/00
Filed: 1995-03-10
Abstract: PURPOSE: To improve the attenuation characteristic at a high frequency band by providing a ground pattern between spiral conductor patterns forming different inductors arranged side by side. CONSTITUTION: Plural sets of inductors consisting of one set of spiral conductor patterns 2a, 2b formed on both sides of a board 9 and of conductor patterns of throughhole sections 4a, 4b provided in the center of the spiral to connect the one set of the conductor patterns 2a, 2b are connected in series. Furthermore, a capacitor 8 is connected to a connection section or both the connection section and a non-connection section of plural inductors. Then a ground pattern 3 is provided between the spiral conductor patterns 2a, 2b being components of the different inductors. Thus, stray capacitance between the conductor patterns 2a, 2b is reduced and the attenuation characteristic at a high frequency band is improved.