baber/WOPTO huggingface dataset:
Patent JP-S57177563-A (JP)
Title: Junction type filed effect transistor and manufacture thereof
Inventor: TANAKA YUUJI
IPC: H01L29/80
Filed: 1981-04-24
Abstract: PURPOSE:To improve the channel current cut off characteristics by means of making the time for the depletion layer to reach the substrate from the gate region surpass the time from the electrode fetch region by a method wherein the gate electrode fetch region in the gate region comprising J-FET is formed shallower than the gate regions following said region. CONSTITUTION:The N type layer of Si substrate 12 combined with the P<+> type and the N type is coated with the SiO2 film 22 and the part of film 22 shown by the oblique lines is removed by etching. Next the sharrow cavity is formed on the surface of the N type layer by the etching and the film 22 corresponding to the gate contact region is removed. Then the P<+> type gate region 32 is formed on the surface layer of the N type layer by means of the diffusion on the ion injection making the part of said region 32 not etched sharrow. Moreover, the entire surface is covered with the SiO2 film 22 again and a hole is opened corresponding to the sharrow part of said region 32 fixing the gate electrode 62 to the hole.
Patent JP-H02244683-A (JP)
Title: Magnetosensor
Inventor: ITAKURA KEIJIRO
IPC: H03K17/90
Filed: 1989-03-16
Abstract: PURPOSE:To obtain a magnetodetective output in a wide range of temperature by a method wherein a drive voltage is applied to a Hall sensor through the intermediary of a Schottky diode. CONSTITUTION:When a drive voltage is applied to a Hall sensor 6 through the intermediary of a Schottky diode 7, the magnetosensor 6 which detects a Hall voltage induced by a magnetic field follows the forward voltage temperature property of the Schottky diode 7, so that a drive voltage rises with temperature. Therefore, a Hall voltage can be prevented from decreasing due to the reduction in mobility with the rise of temperature, so that a magnetosensor of this design can be improved in reliability.
Patent JP-H04297526-A (JP)
Title: Production of high strength hot rolled steel plate well balanced between strength and ductility
Inventor: ASANO HIROHIDE
IPC: C21D8/02
Filed: 1991-03-26
Abstract: PURPOSE:To produce a hot rolled steel plate having >=600N/mm<2> tensile strength and well balanced between strength and ductility. CONSTITUTION:A steel having a composition which contains 0.05-0.20% C, 2.5-6.0% Mn, <=0.1% Al, and <=0.01% S and where Si, Cr, Mo, Ni, and B are added, if necessary, is subjected, immediately or after heating up to 1000-1300 deg.C, to rolling at a temp. not lower than the Ar3 point and coiled at <=300 deg.C. The resulting hot rolled steel strip having a fine metallic structure consisting of >=95% bainite and martensite is subjected to reheating treatment up to 600-850 deg.C. By this method, the hot rolled steel plate having >=600N/mm<2> tensile strength and well balanced between strength and ductility can be produced.
Patent JP-S62217624-A (JP)
Title: Bonding structure of semiconductor device and manufacture thereof
Inventor: HIRATA KATSUHIRO
IPC: H01L21/60
Filed: 1986-03-18
Abstract: PURPOSE:To prevent the corrosion of aluminum at a bonding pad, by removing a smooth coating film including phosphorous directly beneath the bonding pad comprising aluminum alloy or aluminum. CONSTITUTION:A polysilicon electrode . interconnecting film 3 including phosphorus is formed at the specified part of the surface of a insulating film 2. A bonding pad 61 comprising aluminum alloy or aluminum is formed on the surface of the polysilicon electrode . interconnection film 3. A smooth coating film 41 including phosphorus is formed on the surface of the insulating film 2 so as to surround the polysilicon . interconnecting film 3 and the bonding pad 61. Then, the yield of phosphoric acid, which is caused by the reaction of water intruded to the surrounding part of the bonding pat 61 and the smooth coating film 41, is suppressed. Thus, corrosion of the aluminum in the bonding pad 61 is prevented.
Patent JP-H05263799-A (JP)
Title: Multidirectional screen blowing up device
IPC: F04D29/70
Filed: 1992-03-18
Abstract: PURPOSE:To provide a screen blowing up device which can prevent the generation of the disorder of air currents without any relation to the hindrance of air currents such as a filter receiving frame and which is handy. CONSTITUTION:This is a multidirectional screen blowing up device 1 which is made up by containing at least each lower part portion that is formed of a meshlike sheet and consists of plural slanting surface portions 2a-2c that extend from a frame 5 connecting plural filters 4, so as to be separated from filters 4, and a plane portion 3 that extends from the end portions of the slanting surface portions 2a-2c in parallel with filters 4.
Patent JP-S57176777-A (JP)
Title: Semiconductor device and manufacture thereof
Inventor: EHATA TOSHIKI
IPC: H01L29/812
Filed: 1981-04-23
Abstract: PURPOSE:To improve high frequency characteristics in an MESFET wherein the gate electrode on the semiconductor material layer on a substrate and both sides of the gate electrode have an insulating compound film for themselves and two ohmic electrodes are provided. CONSTITUTION:A gate electrode 5 is directly provided on the semiconductor material operation layer 2 on a substrate 1. The metallic compound film 5' for the gate electrode is provided on the gate electrode 5. A source electrode 3 and a drain electrode 4 are provided on the semiconductor material operation layer 2. Thus the MESFET is obtained. In this structure, the distance between the source electrode and the gate electrode, the distance between the drain electrode and the gate electrode, and the width of the gate electrode are minutely controlled in the submicron range. Thus the excellent high frequency characteristics can be obtained.
Patent JP-S58182486-A (JP)
Title: Control device of induction motor
Inventor: NAGASE HIROSHI
IPC: H02P23/08
Filed: 1982-04-16
Abstract: PURPOSE:To perform speed control precisely regardless of running frequency by a method wherein the primary current of an induction motor is detected to receive any direct current signals corresponding to the active component controlling the direct current to cancel the deviation thereof from the command signals. CONSTITUTION:The primary frequency command values are input into an oscillator 14 to output the sine wave output signals. The signal component of the primary current detective signals are processed at the current component processing circuit 15 conforming to the output signals to detect the torque current It of the component perpendicular to the flux axial position as the direct current signals. Firstly the deviation of the torque current command value I*t from the actual value It is input into a current control circuit 16 to make the circuit 16 operate corresponding to the deviation. Secondly the voltage command value V*m from an exciting voltage command circuit 17 and the other voltage command value V*t from a current control circuit 16 are input into a voltage command processing circuit 18 to process an instantaneous voltage command value V*i commanding the instantaneous value of the primary voltage.
Patent JP-H08263231-A (JP)
Title: Device and method for controlling semiconductor disk
Inventor: MURAYAMA TAKASHI
IPC: G06F3/08
Filed: 1995-03-22
Abstract: PURPOSE: To improve work efficiency and to easily allocate dynamic resources at high speed by changing a contents of allocation information and excluding a request of access to a storage area of a semiconductor disk device to be changed when the change is instructed. CONSTITUTION: After the semiconductor disk device is activated, the change of extension or exclusion is instructed from a change instructing means 11 provided at a CA to the storage area of the semiconductor disk device designated for each prescribed data unit such as a cylinder corresponding to a channel command or a request from an FST. Even during an on-line state, an access request excluding means 14 provided at a resource managing part excludes the other access request to the storage area of the designated semiconductor disk device. Next, an allocation information changing means 12 changes the allocation information concentrated and stored in a concentrated allocation information storage means 13 so that a memory area to allocate the storage area of the designated semiconductor disk device can be changed.
Patent JP-S60204628-A (JP)
Title: Purity enrichment in iron oxide obtained by solvent extraction
Inventor: UCHINO KAZUHIRO
IPC: B01D11/04
Filed: 1984-03-30
Abstract: PURPOSE:When iron oxide is recovered from waste solution containing Fe ions such as waste solution from iron acid rising, the iron oxide is treated in a specific manner to remove P and F, resulting in production of high-purity iron oxide. CONSTITUTION:Fe ions in waste water after rising iron materials with acid are extracted with an organic solvent composed of a phosphorus-containing extracting agent such as alkyl phosphate and a petroleum hydrocarbon diluent and a fluoride releasing solution is used to precipitate the Fe ions in the form of ammonium ferrofluoride or crystals of iron fluoride. The precipitates are separated and roasted in the air to recover iron oxide. In this iron oxide, the P from the extracting agent and F remain, because the decomposition of the salt is insufficient, and so the iron fluoride crystals are rinsed with the same hydroacarbon as that of the diluent to reduce the P content. Further, the reasting temperature is raised up to 700-900 deg.C to promote the decomposition of the crystals to give iron oxide of high purity of reduced F content.
Patent JP-2000260984-A (JP)
Title: High breakdown-strength semiconductor element
Inventor: YAMAGUCHI SHOICHI
IPC: H01L29/78
Filed: 1999-03-10
Abstract: PROBLEM TO BE SOLVED: To provide a high breakdown-strength semiconductor element which has a low on-resistance as well as a high-speed switching performance. SOLUTION: This semiconductor element is provided with a first conductivity drain layer 1, a first conductivity semiconductor layer 2 and a second conductivity semiconductor layer 3, which are formed on the first conductivity drain layer 1 and are arranged alternately and repetitively in the horizontal direction thereon, a first conductivity base layer 4 formed on the first and second conductivity semiconductor layers 2 and 3, a second conductivity base layer 5 formed adjacent to the first conductivity base layer 4, a first conductivity source layer 6 formed on the surface of the second conductivity base layer 5, a gate electrode 8 formed opposite to the surface of the second conductivity base layer 5 between the first conductivity source layer 6 and the first conductivity base layer 4 with a gate insulating film 7 interposed,  a first main electrode 9 formed in the first conductivity drain layer 1, and a second main electrode 10 formed in the first conductivity source layer 6.
Patent JP-S54152986-A (JP)
Title: Semiconductor logic-circuit device of electrostatic induction type
Inventor: NAGAO SHIGEO
IPC: H01L27/06
Filed: 1978-05-24
Abstract: PURPOSE:To improve frequency characteristics by substituting nearly the entire gate layer surrounding conventionally a drain layer by an insulating layer and by providing an original gate of the irreducible area of demand right under the drain layer. CONSTITUTION:On N<+>-type Si substrate 21, N<-> epitaxial layer 22, SiO2 23 and Si3N4 24 are stacked. Films 23 and 24 are selectively removed and layer 22 is partially etched; and oxidized film 25 is formed thick enough and film 24 is removed.  Further, film 23 is provided with an opening to form P-type gate 26a of a SIT  and P-type emitter layer 26b of a lateral PNP transistor. Layer 26a is formed of belt-shaped part (a) opposite to layer 26b and belt part (b) away from layer 26b,  layer 25 surrounds layer 26a at three sides. By the mask of SiO2 23, N<+> drain layer 27 of the SIT is formed and an Al electrode are fitted, thereby completing a SITL. In this constitution, drain-gate and source-gate capacities can be reduced without changing substantial channel width and frequency characteristics improve.
Patent JP-H01233660-A (JP)
Title: Input system for kana attached to beside kanji
Inventor: YAMASHITA HISAO
IPC: G06F17/22
Filed: 1988-03-15
Abstract: PURPOSE:To use the input of the reading of KANJI (Chinese character) in KANA (Japanese syllabary) for a KANA-KANJI conversion also as the input of KANA attached to beside KANJI by making the reading of inputted KANJI saved in a reading saving area into KANA to be attached to the KANJI and retaining the KANA in an output data area under an attached state to the KANJI to exist in the output data area. CONSTITUTION:A KANA-KANJI converting means 1 executes the KANA-KANJI conversion when a user P inputs the reading of KANJI for a person's name, an address, etc., to the means 1, and the means 1 retains data composed of both KANA and KANJI in an output data area D. Further, a reading saving means 2 saves the reading of the KANJI inputted to the KANA-KANJI converting means 1 in a reading saving area T. Moreover, a KANA to be attached attaching means 3 makes the reading of the inputted KANJI saved in the reading saving area T into the KANA to be attached to the KANJI according to an instruction to attach the KANA to be attached to the KANJI from the user P and retains the KANA to be attached to the KANJI in the output data area D under the attached state to the KANJI to exist in the output data area D. Thus, the input of the reading of KANJI in KANA for inputting the KANJI in the KANA-KANJI conversion can be also used as the input of the KANA being attached to beside the KANJI.
Patent JP-H08265015-A (JP)
Title: Dielectric resonator and high frequency band pass filter
Inventor: ISHIKAWA YOHEI
IPC: H01P7/10
Filed: 1995-03-22
Abstract: PURPOSE: To obtain an inexpensive dielectric resonator and a high frequency band pass filter used for a millimeter band and a change in a resonance frequency is made very small with respect to a change in a temperature. CONSTITUTION: This resonator has a dielectric board 3, a 1st electrode 1 formed on a 1st side of the dielectric board 3 and having a 1st opening, a 2nd electrode 2 formed on a 2nd side of the dielectric board 3 and having a 2nd opening, a 1st conductor board 211 provided apart from a prescribed interval from the dielectric board 3, and a 2nd conductor board 212 provided apart from a prescribed interval from the dielectric board 3. Then the dielectric board 3 resonated by a prescribed resonance frequency and inserted between the 1st electrode 1 and the 2nd electrode 2, a free space 10 between the 1st electrode 1 and the 1st conductor board 211 and a free space 10 between the 2nd electrode 2 and the 2nd conductor board 212 form a cut-off area in which a high frequency signal with the same frequency as the resonance frequency is attenuated.
Patent JP-H11261991-A (JP)
Title: Moving image signal encoding device for monitoring device
Inventor: HAGIWARA TSUYOSHI
IPC: H04N19/00
Filed: 1998-03-13
Abstract: PROBLEM TO BE SOLVED: To enable encoding operation optimum for plural alarm signals and to deal with a change in the number of alarm signal inputs without changing a moving image signal encoding device. SOLUTION: An alarm vector generating part 15 generates an alarm vector based on N pieces of alarms from plural alarm generators 14. An operating mode vector generating part 16 generates an operating mode vector based on the alarm vector and a weight matrix 17. An encoded parameter vector generating part 18 generates an encoded parameter vector based on the operating mode vector and a table 19 for encoded parameter selection. A moving image signal encoding device 12 encodes the input image from a fixed camera 11 based on the encoded parameter vector and outputs a code from an encoded data output part 13.
Patent JP-H05266447-A (JP)
Title: Movable head device and drum device
IPC: G11B5/588
Filed: 1992-03-19
Abstract: PURPOSE:To provide a movable head device and a drum device having a head position detecting mechanism improving attaching workability and reducing the influence of internal magnetic field to a position senser. CONSTITUTION:In an electromagnetic driving type, the movable head device of a voice coil type in particular, in the movable head device 1 consisting of a head loading body 100 consisting of a magnetic head 12 and gimbals springs 16a and 16b attaching the head, a driving coil 6 wound around a bobbin 11 and a magnet 3 and a yoke 4 forming a magnetic circuit between the magnet 3, a penetration hole 32 is provided on the yoke 4 and a part 33 of the bobbin 11 is prolonged and the head position detection mechanism 200 is provided on the outside of the yoke.
Patent JP-H11254478-A (JP)
Title: Production of resin-sealed optical semiconductor
Inventor: ITO TAKAYUKI
IPC: B29C45/14
Filed: 1998-03-13
Abstract: PROBLEM TO BE SOLVED: To provide an industrially advantageous method for producing a resin-sealed optical semiconductor in which various thermoplastic resin are used as raw materials and no complex process is required. SOLUTION: First, a split type primary molding is prepared by using a thermoplastic resin having good light transmittance, an optical semiconductor is inserted/fixed into/to the primary molded product to form a bonded/integrated insert part. Next, the insert part is inserted/fixed into/to an injection molding mold cavity, a thermoplastic resin for coating molding is injected/packed into a part excluding the light transmitting window of the optical semiconductor for coating molding, and simultaneously a resin-sealed molded product having a desired outer shell form is formed.
Patent JP-S61223754-A (JP)
Title: Sorting method for copy of color copying machine
Inventor: IKESUE MASUMI
IPC: B65H7/02
Filed: 1985-03-29
Abstract: PURPOSE:To reduce misrecognition of marks and to facilitate sorting operation by forming marks for sorting copies in a color different from that of an original image. CONSTITUTION:An original 3 is placed on contact glass 2 and copied in black and transfer paper after fixation is discharged and stacked in an intermediate tray 7. Then, the development color is changed to red with a selection key on a console panel. The original on the contact glass 2 is removed and a pattern which has a position and a shape according to a classification is placed on the contact glass 2. Then, a photosensitive body is exposed to the pattern to form its latent image. The formed pattern latent image is developed with red toner, transferred to the original image copying surface of the transfer paper fed from the intermediate tray 7 and fixed as a mark 21 for sorting and then discharged in a paper discharge tray. This is an example of the use of a monochromatic copying machine whose development color is switched to one optional color between at least two colors and reduces misrecognition of marks and facilitates the sorting operation.
Patent JP-S61224359-A (JP)
Title: Manufacture of thin film transistor array
Inventor: TAKEDA MAMORU
IPC: H01L27/12
Filed: 1985-03-29
Abstract: PURPOSE:To obtain a TFT array without using lift-off by patternizing the 2nd. insulation layer, an impurity semiconductor layer and a transparent conductive film by self-alignment, using the gate electrode on a transparent insulation substrate as a mask and each film into a required shape, using the mask again. CONSTITUTION:An insulator 3, a semiconductor 4 and an insulator 5 are piled on a transparent insulation substrate 1 which is provided with a gate electrode 2, a positive resist is applied, a mask is made by exposing from the back surface and the photoresist on the layer 5 is removed by etching. //an impurity semiconductor layer 6 is piled and a negative resist is applied, a mask is made by exposing from the back surface and the layer 6 is etched. Then, the layers 6 and 4 are etched, suing another mask and a TFT PART 10 and an intersection 9 are made. Then, a transparent conductive layer 8a is piled, a mask is made by exposing the back surface of a resist and a picture element electrode 8 is formed, using another mask after etching. Then, the lead wire of the gate electrode is exposed patterning the layers 3, 4, 5, a source electrode 7a and a drain electrode 7b are attached and a final array is made. This construction enables to obtain a TFT array wherein the impurity semiconductor layer 6 and the picture element electrode 8 are self-aligned with the gate electrode 2.
Patent JP-H03262401-A (JP)
Title: Rear cover structure of rotary tiller
Inventor: TAKAHASHI TOKO
IPC: A01B33/12
Filed: 1990-03-14
Abstract: PURPOSE:To stably control the tilling depth by dividing a rear cover into an upper rear cover and a lower rear cover and connecting the rear covers with a flexible member and a connecting link. CONSTITUTION:A rear cover is divided into an upper rear cover 3 and a lower rear cover 4 and the upper and the lower rear covers are connected with a flexible member 1 and a connecting link 2. Preferably, the top of the connecting link is pivoted to the upper rear cover with a pivoting part 10 and a stopper 9 is inserted between the connecting link and the upper rear cover to prevent the excessive lowering of the cover.
Patent JP-H09252605-A (JP)
Title: Remote operation device for working machine
Inventor: SUGIMOTO MAKOTO
IPC: H04Q9/00
Filed: 1996-03-19
Abstract: PROBLEM TO BE SOLVED: To provide a remote operation device for a working vehicle which is superior in operability. SOLUTION: An operation board 27 for remotely operating the working vehicle is provided with a hand rest part 28 which supports the part of a hand nearby the wrist and plural steering switch groups 29 and 30 are arranged side by side within a range wherein finger tips reach them while the hand is placed on the hand rest part 28. The steering switch groups 29 for indicating rightward steering and the steering switch group 30 for indicating leftward steering are arranged separately on a right and a left side. The indication steering angle of a steering switch 31 is set smaller than that of a steering switch 31 outside the steering switch 31 in the center of the each steering switch group, and respective steering switches 31 are so constituted as to output steering signals indicating mutually different steering angles.
Patent JP-S52147355-A (JP)
Title: Direct fired absorption type high temperature
Inventor: KOBAYASHI HIROSHI
IPC: F25B35/02
Filed: 1976-06-02
Abstract: PURPOSE: To obtain smaller device in providing steam liquid separating tower, wherein cyclone is located, in the steam liquid separator and to obtain high purity steam in improving separation efficiency of liquid drop in locating the above cyclone separately from steam pipe group. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S59190467-A (JP)
Title: Distributing type fuel injection pump
Inventor: NAKAMURA ICHIROU
IPC: F02M41/14
Filed: 1983-04-13
Abstract: PURPOSE:To prevent secondary injection and as well ununiform injection to obtain stable fuel injection, by providing means for reducing the residual fuel pressure, in a discharge passage. CONSTITUTION:A communication groove 23 formed in a rotor 4 prevents a pressure rise causing a secondary injection. The groove 23 is communicated with the supply side of a passage 27 through a barrel 3. Therefor, the communication groove 23 is communicated with a passage 22 soon after the discharge of fuel from a pressure chamber 12 is completed and the communication between a passage 18 and the passage 22 is blocked, and the residual pressure in the passage 22 is communicated with the passage 27. Accordingly, the pressure in the passage 22 is decreased and then maintained at a constant pressure. The range of the groove 23 may be determined in consideration with the dimensions of the passages 18, 22, but the range may be normally set 10-25 deg..
Patent JP-S63231160-A (JP)
Inventor: SAITO KAZUO
IPC: F25D11/02
Filed: 1987-03-20
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。