baber/WOPTO huggingface dataset:
Patent JP-H05308082-A (JP)
Title: Semiconductor device and its manufacture
Inventor: YANO HIROSHI
IPC: H01L21/338
Filed: 1992-04-30
Abstract: PURPOSE:To enable a mesa-shaped part to be an element region by etching a buffer layer, a channel layer, and a carrier supply layer in the mesa shape, at the same time prevent contact between a Schottky gate electrode and the channel region by contacting the Schottky gate only to the top surface of the mesa-shaped part. CONSTITUTION:A buffer layer 2, a channel layer 3, and a carrier supply layer 4 are laminated on a substrate 1 in sequence and then an ohmic source electrode and a drain electrode as well as a Schottky gate electrode 11 are formed on the carrier supply layer 4 in the title semiconductor device. In this device, the buffer layer 2, the channel layer 3, and the carrier supply layer 4 are etched in mesa shape so that they surround the source electrode, the drain electrode, and the Schottky gate electrode for forming the mesa-shaped part as an element region and at the same time the Schottky gate electrode 11 is extended for formation to the other part of the edge on the top surface from one part of the edge of the top surface so that it contacts only the top surface of the mesa- shaped part.
Patent JP-2000305384-A (JP)
Title: Fixing device
Inventor: MATSUZAKI TETSUYA
IPC: G03G15/20
Filed: 1999-04-20
Abstract: PROBLEM TO BE SOLVED: To provide a fixing device rapidly fixing a toner image on a recording medium by blowing hot air uniformly to the entire surface of the recording medium. SOLUTION: This fixing device 101 is attached to an image forming device in which the toner image on a toner image carrier is pressured and transferred to the recording medium 207 from a direction orthogonal to the carrying direction of the medium 207 and fixes the toner image transferred to the medium 207 on the medium 207.  In such a case, the device 101 is provided with a ventilation means 215 generating the hot air by making the air blow off a heat source 213 which performs heat generating operation, a carrying guide 217 through which the recording medium 207 passes, and a flow straightening and heat exchanging means 102 which is provided to hold the heat source 213 in between from both sides, where plural through-holes through which the air from the means 215 flowing in from either side is made to flow out from the other side and sent to the guide 217 after adjusting its blow-off direction are formed and which changes the air from the means 215 heated by the heat source 213 to the hot air.
Patent JP-H02293223-A (JP)
Title: Constant speed running device
Inventor: SATOU MORIO
IPC: B60K31/00
Filed: 1989-05-02
Abstract: PURPOSE:To improve the stability of running at a constant speed by detecting pulse interval times till a predetermined number of pulses are outputted from a pulse type speed senser, and comparing the previous value of the pulse detection time with the current value sequently for determining the degree of rotation dispersion of the speed senser. CONSTITUTION:A fluctuation value DELTAtni for a cable rotation cycle for every rotation of a speed senser 7 is detected, and the fluctuation values are added sequently based on if each fluctuation value is positive or negative to calculate DELTAtnp and DELTAtnm. Though when a vehicle is running at a constant speed, an absolute value of an addition DELTAtnp of the positive values and an absolute value of an addition DELTAtnm of the negative values are equal to each other, if the vehicle is accelerated, the absolute value of the negative addition DELTAtnm is larger, while if the vehicle is decelerated, the absolute value of the positive addition DELTAtnp is larger. In this case, both addition values can be said to be errors by rotation dispersion, etc., of the senser 7 basically, and the smaller value is taken as DELTAtn, and when this value is large, it is determined that the rotation dispersion is large, so a throttle valve control quantity U is decreased.
Patent JP-H0411361-A (JP)
Title: Automatic gain control circuit
Inventor: KAWAKUBO ISAO
IPC: G11B20/10
Filed: 1990-04-27
Abstract: PURPOSE:To stably reproduce a signal just after a gap part without modulating by fixing the AGC gain only in the gap part, where the signal does not exist from the first, in a data signal reproducing system of an optical disk driving device. CONSTITUTION:The output of an AGC amplifier 10 is supplied to a binarizing circuit 12, and the binarized signal is supplied to a pattern detecting circuit 16. Since the head of an ID part is a signal having a certain pattern, a trigger signal is inputted from a pattern detecting circuit 16 to a control signal generating circuit 17 when this pattern is detected. This control signal circuit 17 outputs a signal corresponding to the gap part a certain time after being triggered. A switch 14 is turned off by this signal, and the gain is kept fixed value in the gap part by the voltage held in a capacitor as the voltage holding circuit, and the signal is outputted without being modulated. Thus, the signal just after the gap part is not modulated to stably reproduce the signal.
Patent JP-H05279022-A (JP)
Title: Production of granular rare-earth element oxide
IPC: C01F17/241
Filed: 1992-04-03
Abstract: PURPOSE:To improve the powder characteristic by precipitating an ammonium- type oxalate double salt of a rare-earth element shown by a specified formula, separating the reacting mother liquor, then cleaning the double salt with an acidic soln. and calcining the double salt. CONSTITUTION:A rare-earth element oxide such as Y2O3 is dissolved in an inorg. acid such as nitric acid, and the soln. is diluted with water to preapre a soln. contg. <=1.5mol/l free acid and 0.1-1mol/l of the rare-earth element. Meanwhile, aq. NH3 is agitated and added by 2-4mols for the oxalic acid to 1-30wt.% aq. oxalic acid equivalent to 2-2.5mols for the rare-earth element to prepare the aq. soln. A soln. of the nitrate of the rare-earth element is admixed with the aq. soln. and subjected to a reaction at 30-100 deg.C to precipitate the ammonium-type oxalate double salt of the rare-earth element shown by NH4M(C2O4)2.n2O (M is rare-earth elements and (n) is >=1). The precipitate is cleaned with 0.05-2N nitric acid for a specified time, dried and then calcined at 800-1000 deg.C for 1-4hr to obtain a granular rare-earth element oxide having uniform shape and grain size.
Patent JP-S5538966-A (JP)
Title: Nitriding method for titanium and titanium alloy
Inventor: MUROI KATSUMI
IPC: C23C8/24
Filed: 1978-09-14
Abstract: PURPOSE:To form excellent nitride layer without formation of oxide coating, by nitriding Ti or Ti alloy with usual nitrogen after filling a metal powder, which possesses affinity to oxygen of the same degree as that of Ti, around the Ti or Ti alloy. CONSTITUTION:Parts 2 to be nitrided made of Ti metal or Ti alloy such as Ti-6Al- 4V etc. are previously put into a pipe 4, and Ti powder of 100 mesh is filled to the space around the parts 2. For the Ti powder is used a powder previously nitrided to TiN. At the inlet of the reaction pipe 4 is packed fresh Ti powder 3. The pipe is heated to 850 deg.C while introducing usual nitrogen gas contg. very small amount of oxygen for 20hrs. to nitride the surface of the parts 2. The small amount of oxygen is consumed for the reaction with Ti powder 3 to form TiO2, consequently the nitrogen gas which nitrides the surface of the parts 2 contains no oxygen, so that nitride layer is formed by use of inexpensive usual nitrogen gas.
Patent JP-H02110487-A (JP)
Title: Picture forming device
Inventor: TAMURA YASUYUKI
IPC: G03G21/00
Filed: 1989-05-01
Abstract: PURPOSE:To superimpose two pictures upon each other with a simple constitution by separating a cleaning means from an image carrying body when the 1st toner image on the image carrying body passes a cleaning position. CONSTITUTION:In this picture forming device which forms a picture in such a way that the 1st toner image is formed by developing the 1st latent image formed on n image carrying body 1 and, after forming the 1st toner image, the 2nd toner image is formed on the image carrying body 1 on which the 1st toner image is formed by developing the 2nd latent image formed on the carrying body 1, a cleaner 6 is retreated to the nonoperating position shown by the double dotted chain line in the figure by means of an advancing and retreating mechanism 22 while the toner images pass through a cleaning position when the toner images pass through the cleaning position. Since the cleaner 6 is retreated, the toner images are not removed or disturbed and can advance to the next image forming process. Therefore, the first formed toner image can be synthesized with the succeedingly formed toner image without being disturbed by the cleaning means 6and such kind of picture synthesization can be put to practical use easily.
Patent JP-H11304262-A (JP)
Title: Condenser
Inventor: MURAYAMA AYAKO
IPC: F25B39/04
Filed: 1998-04-22
Abstract: PROBLEM TO BE SOLVED: To enable an supercooled core to exhibit its cooling ability by providing a first blower which sends air to a subcool condenser side and a second blower which sends air to the supercooled core side. SOLUTION: A condenser is provided with a first blower 180 which sends air to a subcool condenser 160 side and a second blower 190 which sends air to the part of a supercooled core 120 corresponding to the refrigerant flowing-in side. Therefore, the supercooled core 120 is enabled to sufficiently exhibit its cooling ability without increasing the size of the first blower 180, because the amount of the air sent to the core 12 can be increased without increasing the blowing capacity of the first blower 180.
Patent JP-S602571-A (JP)
Title: Winding device for rubber tube
Inventor: INUI YOSHIHARU
IPC: B65H54/00
Filed: 1983-06-21
Abstract: PURPOSE:To be enabled to wind on a rubber tube only revolving a wind-on bar without revolving a winding spool itself by winding on said rubber tube along the bottom face, making a scroll, by the revolution of said bar in a winding-on device for rubber tubes and the like. CONSTITUTION:A winding-on case 1 for rubber tubes is constituted in such a way that an outlet 2 for rubber tube is installed at the center of the cover plate, the bottom board is formed with a setting plate 3 for arranging-part of said rubber tube, and a winding spool 4 is installed at the center of said bottom and further an outlet for said rubber tube at the center of said spool. A winding-on bar 6 which is supported by said spool 7 is installed at the center of said bottom, and it is forced to orient to the winding-on direction with a torsion spring 8. When a force F which is greater than that of said spring 8 is applied to a rubber tube 9 pulled out from said outlet 2, said rubber tube 9 can be taken out freely, and when said stretching force F is smaller than the force of said spring 8, said winding-on bar 6 is forced to revolve with said spring 8 and wind on said rubber tube 9 successively along said setting plate 3 making a scroll. Accordingly, disadvantages such as twist of said rubber tube or blocking of the inside of said tube can be surely prevented.
Patent JP-S596304-A (JP)
Title: Preparation of coated surface cutting tool made of sintered hard alloy
Inventor: YOSHIMURA HIRONORI
IPC: B23B27/14
Filed: 1982-07-01
Abstract: PURPOSE:To prepare the titled tool excellent in anti-wear property and toughness and having no decarburization layer at all, by a method wherein a pressed powder body based on a WC powder and containing carbide of a metal belonged to groups IVa, Va or VIa and a ferrous metal is sintered after nitrification treatment and the sintered one is subsequently coated by a hard layer. CONSTITUTION:A pressed powder body is molded from a mxed powder based on a WC powder and containing carbide of a metal belonged to groups IVa, Va or VIa or one kind or more solid solution powder comprising two kinds or more thereof and a ferrous metal powder. This pressed powder body is subjected to nitrification treatment at 1,000-1,300 deg.C in a nitrogen-containing atmosphere and the carbide powder of the above mentioned metal other than the WC powder is converted to a fine carbonitride powder to precipitate fine free carbon. Succeedingly, the pressed body is sintered at 1,350-1,500 deg.C under vacuum of 0.5Torr or less to prepare a hard alloy substrate having a surface layer with a thickness of 5-100mum comprising WC, free carbon and the ferrous metal and an interior comprising WC, free carbon and metal carbonitride. This surface layer is 5-40% lower than the interior in hardness Hv. In the next step, the surface of the substrate is coated with an anti-wear hard layer.
Patent JP-S61269808-A (JP)
Inventor: ITONAGA SADAMI
IPC: H01B7/18
Filed: 1985-05-24
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-H01283365-A (JP)
Title: Electron beam vapor deposition apparatus
Inventor: KAWADA NORIYUKI
IPC: C23C14/30
Filed: 1988-05-11
Abstract: PURPOSE:To uniformly heat a metal for evaporation by providing electromagnets consisting of plural slots and coils wound round respective slots on both sides of an electron beam in the outgoing direction of this electron beam and supplying two-phase or three-phase A.C. voltage to the above coils so as to form a continuously shifting magnetic field. CONSTITUTION:An electron gun 2 emitting an electron beam 3 is fixed to the casing 10 of a vapor deposition chamber, and electromagnets deflecting the electron beam 3 are provided on both sides of a vapor deposition tank 4, respectively. Each electromagnet consists of an iron core 11 having many slots 18 arranged in the longitudinal direction and coils 12 continuously wound round the slots 18. Then, a D.C.-biased two-phase or three-phase A.C. current is supplied to the above coils 12, by which a continuously shifting magnetic field is formed. By this method, a metal 5 for vapor deposition in the vapor deposition tank 4 can be uniformly irradiated by the electron beam 3, by which this metal 5 can be uniformly heated.
Patent JP-H07321315-A (JP)
Title: Semiconductor device
Inventor: MARUYAMA YASUO
IPC: H01L29/78
Filed: 1994-05-26
Abstract: PURPOSE:To reduce the ON resistance of a lateral MISFET by increasing the breakdown voltage of a drain region at a first semiconductor region and compensating the reduction in an impurity concentration at the surface region of the first semiconductor region at a second semiconductor region. CONSTITUTION:An offset region 7 of a lateral MISFETQ is formed by an n-type semiconductor region 5 which is formed on the main surface of a semiconductor substrate 1 and where the peak value of an impurity concentration distribution is set to a position which is deeper than the main surface from the main surface of the semiconductor substrate 1 toward the depth direction and an n-type semiconductor region 6 which is formed on the main surface of the n-type semiconductor region 5 and where the peak value of the impurity concentration distribution is set to a position which is shallower than the peak value of the impurity concentration distribution of the n-type semiconductor region 5, thus increasing the breakdown voltage of a drain region and reducing the resistance of an offset region 7 and hence reducing the UN resistance of a lateral MISFETQ and increasing the power gain of the title semiconductor device.
Patent JP-S62269301-A (JP)
Inventor: TANNO ZENICHI
IPC: H01C7/10
Filed: 1986-05-19
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-H10296878-A (JP)
Title: Bag cutting device
Inventor: SATO KAZUHIRO
IPC: B31B1/14
Filed: 1997-04-30
Abstract: PROBLEM TO BE SOLVED: To automatically and accurately cut a folded up in a ridge part of the pleat of a bag along the folding line by a method wherein a press part which presses each folded up in a ridge part from the outside, and a cutting part which cuts the folded up in a ridge parts of a pair of pleats along the folding lines while adjusting to the driving of the press part. SOLUTION: This bag cutting device 1 is arranged in a manner to be confronted with a chain carrying path 3 to carry a bag 2 which is used for a food packaging, etc., and is equipped with a press part 4 which presses each folded up in a ridge part 2a of the bag 2. The press part 4 is equipped with an upper press plate 5 and a lower press plate 6. To the upper press plate 5, an air jetting apparatus 8 which jets air to the bag 2 from the outside and prevents the folded up in a ridge part 2a of the bag 2 from being folded back to a folded down in a valley form, is attached. Then, after bonding the upper press plate 5 and the lower press plate 6, the end part of the folded up in a ridge part 2a is cut by a cutter blade 10, and the folded up in a ridge part 2a can be surely cut along the folding line.
Patent JP-S591749-A (JP)
Inventor: SAIGA HISAO
IPC: D04B21/04
Filed: 1982-06-28
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-S5815719-A (JP)
Title: Controller for supercharger of engine
Inventor: YOSHIMURA JIYUNJIROU
IPC: F02B33/44
Filed: 1981-07-21
Abstract: PURPOSE:To heighten the output of an engine and economize its fuel, by connecting the pressure chamber of an actuator for operating a supercharging control valve, to pressure detection ports opened upstream and downstream to the valve, to effectuate supercharging of high accuracy. CONSTITUTION:A supercharging control valve 14 is provided in an intake passage 8. A supercharger 18 is provided in a supercharging passage 17. In the slow rotation of an engine, an electromagnetic valve 40 is operated to keep the valve 14 in open position through an actuator 25. For that reason, motive power for  driving the supercharger 18 is not needed, so that the output of the engine is hightened and its fuel is economized. In the rapid rotation, the supercharging  control valve 14 is closed so that the supercharger 18 fulfills its function.
Patent JP-H04341767-A (JP)
Title: Organic electrolyte secondary battery
Inventor: WATANABE KIYOTO
IPC: H01M4/134
Filed: 1991-05-17
Abstract: PURPOSE:To increase a speed for Li ions from lithium alloy to go in and out for an organic electrolyte secondary battery to be used for various electric appliances, and provide the organic electrolyte secondary battery having good characteristics for the charging efficiency for high-rate charging. CONSTITUTION:A member 2 is a sealing plate also acting as a negative pole terminal. The member 2 is a negative pole collector having a net of stainless or Ti spot welded with the sealing plate 1. A member 3 is a negative pole of lithium alloy, stamped in a circular form, pressure applied to the negative pole collector on the inner surface of the sealing plate 1, and embossed in the surface of the lithium alloy. A member 4 is a separator to insulate a positive pole 5 from the negative pole 3, and 5 is positive pole active material of vanadium pentoxide mixed with conductive agent and binding agent and molded to be a pellet having a thickness of 1mm. Electrolyte comprises equal volume mixed solvent of propylene carbonate with 1, 2-dimethoxyethane in which lithium is dissolved at a ratio of 1mol/l, and a quantity of the electrolyte is 100mg. A battery composed of such material members and sealed has a good charging efficiency for high-rate charging because of the negative pole 3 using lithium alloy.
Patent JP-S604300-A (JP)
Inventor: SATAKE TOMOMITSU
IPC: H01L23/00
Filed: 1983-06-23
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-S61272750-A (JP)
Title: Light receiving member
Inventor: SHIRAI SHIGERU
IPC: G03G5/08
Filed: 1985-05-28
Abstract: PURPOSE:To always stabilize electric, optical, and photoconductive characteristics by incorporating Ge, a conductivity governing substance, and O in a photoconductive layer in a specified distribution. CONSTITUTION:A light receiving layer is formed by laminating the first photoconductive layer 102 of an amorphous material made of Si as a matrix, and the second layer 103 of an amorphous material made of Si as a matrix containing C and a conductivity governing substance on a substrate 101. In the light receiving layer, Ge is incorporated into a partial layer region in contact with the substrate 101 in a uniform distribution, the conductive governing substance is incorporated into the whole or partial layer region of the first layer in a uniform distribution, and O is incorporated into the whole or partial layer region of first layer in a nonuniform distribution, and when needed, into the second layer in a uniform distribution.
Patent JP-S60256980-A (JP)
Title: Control mode selector of recording medium reproducing device
Inventor: INABA SHIZUO
IPC: G11B19/02
Filed: 1984-06-02
Abstract: PURPOSE:To make ease of operation of the control mode changeover compatible with inhibition of unprepared mode changeover when the restraint of control mode is intended by combining changeover switches. CONSTITUTION:In throwing changeover switches 11a, 11b to the position A, a normal control signal and a special control signal are fed to fixed contacts. The normal control signal and the special control signal are selected optionally depending on the operating state of a switch 12, and they are fed to a reproducing section 3. In throwing the switches 11a, 11b to the position B, the special control signal is fed to both fixed contacts and the special control signal is fed to the reproduction section 3 independently of the operation of the switch 12.
Patent JP-S5637007-A (JP)
Title: Block polyether urethane selective permeable membrane and its manufacture
Inventor: KANDA TAKUMA
IPC: B01D71/54
Filed: 1979-09-04
Abstract: PURPOSE: To obtain a better performance membrane as a selective permeable membrane easily from a block polyether-urethane copolymer composed of polyurethane and polyethylene glycol.  
     CONSTITUTION: The block polyether-urethane copolymer is prepared from ethylene glycol, a polyurethane whose main component is 4,4'-diphenylmethanediisocyanate, and polyethylene glycol, and then the copolymer thus obtained is made into the membrane which can be used as the selective permeable membrane for the dialysis of blood, etc. Thus, the membrane having excellent selective perviousness can be easily manufactured by a simplified process. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-S60256598-A (JP)
Title: Electric blower
Inventor: FUKUMOTO MASAMI
IPC: F04D29/30
Filed: 1984-06-01
Abstract: PURPOSE:To improve a degree of blowing efficiency, by making a distance from a motor shaft at a front shroud inlet of a blade smaller in proportion as approaching to a rear shroud of the blade, in case of an electric blower. CONSTITUTION:If the inlet form of a blade 23 of an electric blower is expressed with length of a distance from the center of a motor shaft 11 to a blade inlet end port, the vicinity of a front shroud 21 is equal to a distance of up to a front shroud inlet and paralleled with the motor shaft, thus it is designed so as to make the distance smaller from the point midway heading for a rear shroud 22. Therefore, even at a low flow range, airflow is filled up inside an impeller and flows in consequence, thus improvement in blowing efficiency and reduction in surging generating flow are well promoted.