baber/WOPTO huggingface dataset:
Patent JP-H03201483-A (JP)
Title: Resonant tunneling semiconductor device
Inventor: IMAMURA KENICHI
IPC: H01L29/205
Filed: 1989-12-28
Abstract: PURPOSE:To enable a resonant tunneling semiconductor device to operate well even if it is low in breakdown strength between a base and a drain by a method wherein a part of semiconductor layers laminated for constituting a resonant tunneling semiconductor device possessed of a negative conductance is isolated into a separate island by insulating, and the isolated island is constituted as a resistive layer which acts as a resistor taking advantage of that carriers travelling through a semiconductor are speed-saturated. CONSTITUTION:A load resistor RL' is composed of a resistive layer 11 and a resistor lead-out electrode 12 in contact with the layer 11, where a part of an N-type InGaAs base layer 4 in an RHET is air-isolated to serve as the separate resistive layer 11. As the load resistor RL' is determined in resistivity basing on the thickness of the resistive layer 11 and the dose of the doped impurity (silicon), to obtain the load resistor RL' of required resistance, a resistive pattern may be controlled in size. In this case, as a resistor takes advantage of the speed saturation of carriers occurred in a semiconductor, it has such characteristics that it sharply increases in resistance at a certain potential and saturated. Therefore, a resonant tunneling semiconductor device of this design can be made to operate even if it is small in breakdown strength between a collector and a base as compared with a case that a conventional load resistor of linear characteristic is used by setting a condition under which an EXNOR gate functions well.
Patent JP-H04206839-A (JP)
Title: Semiconductor device and its manufacture
Inventor: AZUMA CHINATSU
IPC: H01L29/812
Filed: 1990-11-30
Abstract: PURPOSE:To extremely reduce source resistance and Cgs, by making a source electrode and a drain electrode exist on a recess whose depth reaches the midway of an N<-> type buffer layer or the junction surface of the N<-> type buffer layer and an N-type active layer. CONSTITUTION:An etching window 6 is formed at positions where a source electrode and a drain electrode are formed. The part from the etching window 6 to the midway of an N<-> type buffer layer 3 or to the junction surface of the N<-> type buffer layer 3 and an N-type active layer 2 is etched, thereby forming an ohmic recess 7. After resist 5 is eliminated and an insulating film 9 is evaporated on the whole surface, an aperture part is formed in the insulating film 9 by using an ordinary exposure method, a dry etching method, etc. The width of the aperture is made wider than that of the ohmic recess 7. A metal film 10 is evaporated on the whole surface. A source electrode 11 and a drain electrode 12 are formed by a photolithography method or the like. After the recess is formed in a gate region, a gate electrode 13 is formed. An MESFET is completed by wiring.
Patent JP-H03199329-A (JP)
Title: Cold supplying method to rapid melting furnace
Inventor: NUKAZUKA MASARU
IPC: C22B21/00
Filed: 1989-12-28
Abstract: PURPOSE:To prevent the damage of a furnace wall by specifying the operation of a cold body clamping device during charging at the time of transferring the clamping device in vertical and horizontal directions by the pneumatic operation of an air cylinder, thereby charging the cold body from a stocker into a furnace. CONSTITUTION:The cold body clamping device 19b is lowered by the pneumatic operation of an air cylinder 19c for transporting in a vertical direction to grip the cold bodies 20 facing each other among plural pieces of the cold bodies arrayed in the cold body stocker 19a. The clamping device is then risen to an upper position in the state of gripping the cold bodies by the pneumatic operation of an air cylinder 19c and is moved in the state of gripping the cold bodies to the upper position of a rapid melting furnace 12 by the pneumatic operation of an air cylinder 19d for horizontal transfer. The air clyinder 19c for vertical transfer is thereafter slowly lowered while the air therein is gradually released into the atmosphere to transfer the clamping device 9b in the state of gripping the cold bodies to the upper position right above the furnace 12. The gripping of the clamping device 19b is then released and the cold bodies are dropped by their own weight into the furnace 12.
Patent JP-H11173184-A (JP)
Title: Control device of internal combustion engine
Inventor: OBATA TAKEAKI
IPC: F02D41/30
Filed: 1997-12-09
Abstract: PROBLEM TO BE SOLVED: To improve the performance in the converting time of a stratified combustion and a homogeneous combustion in a high response torque controlling condition. SOLUTION: When the converting request from a stratified combustion to a homogeneous combustion is generated in a high response torque controlling condition, the conversion to the homogeneous combustion is permitted (S1 →S2 → S6), and it is converted to a high response torque control by an ignition timing correcting amount (S7 → S8).  When the converting request from a homogeneous combustion to a stratified combustion is generated, the conversion of combustion is prohibited until the torque correcting amount of the high response torque control is made less than a specific value, the high response torque control by the ingnition timing correcting amount is continued (S9 →S10 → S7 → S8), and the conversion to the stratified combustion is permitted after the torque correcting amount is made less than the specific value (S10 →S11), so as to convert to a high response torque control by an equivalence ratio correcting rate (S4 → S5).
Patent JP-H07196669-A (JP)
Title: Compound containing plural 1-aza-3-oxo-4silacyclohex-1-enyl groups and its tautomer
Inventor: TACHIKAWA MAMORU
IPC: C07F7/10
Filed: 1993-12-28
Abstract: PURPOSE:To obtain a new azaoxosilacyclohexene compound capable of quickly cross-linking a hydroxyl group-containing organic or inorganic compound without formation of a by-product. CONSTITUTION:A compound of formula I (R<1> and R<2> are each a 1 to 6C hydrocarbon; A is a 1 to 30C di- to tetra-valent hydrocarbon; Me is methyl; n is 2 to 4), e.g. 1,4-bis-(1-aza-3-oxo-4silacyclohex-1-enyl)benzene. This compound of formula I can be synthesized by reacting a 1-aza-2-silacyclobutane compound of formula II with a carbonyl compound of formula III (X is chlorine, bromine, etc.). In addition, the compound (tautomer) of formula I can be utilized for cross-linking a hydroxyl group-containing organic or inorganic compound by reacting it with the organic or inorganic compound in the presence of water or without using water.
Patent JP-2000158037-A (JP)
Title: Device and method for extruding and rolling, and metallic strip manufactured by the same method
Inventor: STEPHEN L FELDBAUER
IPC: B21B15/00
Filed: 1999-11-29
Abstract: PROBLEM TO BE SOLVED: To obtain surface finish equal to or more excellent pickled surface finish without using acid for a pickling agent by removing an oxidic scale by mechanically cleaning the surface of a strip by grinding, brushing, polishing and these combination after releasing a coiled strip and executing leveling. SOLUTION: The metallic strip uncoiled from a pay-off reel 1 is fed to a strip leveler 2, its dimensions are substantially uniformly decided and completely flattened. This metallic strip is fed to a cleaning device 3, ground with a grinder such as a grinding disk, brushed with a suitable brush and wire brush and polished with a suitable polisher such as a polishing wheel. Next, this metallic strip is coiled with a recoiling device 7 through a tensioning device 4 and, a surface conditioning device 5 and post-treating device 6 which are provided selectively.
Patent JP-H06189175-A (JP)
Title: Image pickup device
Inventor: KURIWAKA YOSHIOMI
IPC: H04N5/232
Filed: 1992-12-18
Abstract: PURPOSE:To provide clear moving images and still pictures by processing image signals in the unit of a field with the encoder of a moving image signal output means and the encoder of a still picture signal output means and separately displaying them. CONSTITUTION:One frame of a subject formed by an image pickup optical system 1 is scanned at the unit of the field obtd. by dividing one frame into plural parts, successively converted to electric signals and outputted by a solid- state imaging device 3. Then, an encoder 7 of the moving image signal output means outputs one frame signal moving image signal obtd. by synthesizing the same kind of field signals in plural frames, and the moving image is displayed on a monitor 9 or a VCR 8. Similarly. The still picture signal of one frame signal is generated by an encoder 17 of the still picture signal output means, outputted and displayed on a monitor 19 or a VCR 18. Since the device uses this simultaneous processing and the respective display parts, clear moving images and still pictures can be provided.
Patent JP-H02225474-A (JP)
Title: Preparation of 2,4-diamino-6-piperidinyl-pyrimidine- 3-n-oxide
Inventor: RESUTAA MIRUZU
IPC: C07D239/48
Filed: 1989-12-28
Abstract: PURPOSE: To obtain the subject substance for blood pressure lowering agent and safe cosmetics economically in a high yield by using hydroxyamine and cyanamide as starting materials, converting them into the corresponding hydroxyguanidine, chlorinating the novel intermediate and reacting the product of chlorination with piperidine.  
     CONSTITUTION: Hydroxyamine and cyanamide as starting materials are reacted with each other in a solvent in the presence of an alkali alcoholate formed in situ to obtain the corresponding hydroxyguanidine. Desirably, an aqueous cyanamide solution is used as a starting material, this is reacted with an aqueous hydrogen halide solution to convert it into the corresponding halogen formamidinium halide compound. Next, this is reacted with hydroxylamine in the presence of an alkali alcoholate in a lower alcohol solvent to obtain the corresponding hydroxyguanidine. This is cyclized by treatment with a cyanoacetic acid ester, and the obtained novel compound is chlorinated with POCl 3  in the presence of an amine catalyst, and the product is reacted with piperidine to obtain the objective compound. 
     COPYRIGHT: (C)1990,JPO
Patent JP-2001149330-A (JP)
Title: Measuring device
Inventor: KAMATA YASUYOSHI
IPC: G01R27/02
Filed: 1999-11-30
Abstract: PROBLEM TO BE SOLVED: To provide a measuring device capable of measuring electric parameters accurately. SOLUTION: This measuring device 1 comprises a conductive electrode part 2, an automatically returning switch means SW to be turned on or off when pressed by a subject H for measurement by way of the electrode part 2, and a control part 3 for making a measuring part 7 measure the electric parameter between the electrode part 2 and a prescribed part 1b when the switch means SW is operated and notifying the result of the measurement to a notification means 4. If the switch means SW returns automatically before either condition is satisfied that a prescribed time has passed since the switch means SW is operated or that the value of the electric parameter being measured has become stable, the control part 3 notifies the notification means 4 of an error in the measurement as the result of the measurement.
Patent JP-2001154808-A (JP)
Title: Information processing system and controller and device to be controlled and connected state confirming method
Inventor: TAIRA KAZUHISA
IPC: G11B20/10
Filed: 1999-11-30
Abstract: PROBLEM TO BE SOLVED: To provide an information processing system for confirming the connected state of a controller and a device to be controlled through an interface for transferring an information signal between the devices and an interface for transferring related information in addition to the information signal between the devices according to a command from the controller. SOLUTION: A drive select signal is transmitted through an FDD I/F by a floppy disk controller 13 of a personal computer 10, and the state of a drive select signal in the post stage of switch parts 232 and 242 of a multi-function HiFD device 20 is held in a DSF memory 331 of a system controlled 31. The information held in the DSF memory 331 is returned through an ATAPI cable 51 to the personal computer 10 according to the request supplied from the personal computer 10 tough an ATAPI cable 51.
Patent JP-H06186037-A (JP)
Title: Method for detecting position of laser level and position detector therefor
Inventor: YOSHINO KENICHIRO
IPC: G01C15/02
Filed: 1992-12-18
Abstract: PURPOSE:To provide a method for detecting the position of a laser level and a position detector which can enhance the accuracy for detecting the position of a laser level without making its circuit structure complex. CONSTITUTION:A laser level position detector has a received light detection system for receiving laser beams P modulated according to an oscillator that oscillates at a predetermined oscillation frequency and for converting the beams into electric signals H1; and an electric signal averaging means 15 for generating a fluctuating voltage whose frequency is smaller than the oscillation frequency by detecting fluctuation of the average voltage of the electric signals obtained through reception of the laser beams modulated according to a transmission side oscillator, the means 15 having a light-reception side oscillator 34 whose oscillation frequency differs from but can be regarded as being almost the same as that of the transmission side oscillator; and detects the position of a laser level from the fluctuating voltage.
Patent JP-H04207869-A (JP)
Title: Image converter
Inventor: TANAKA SADAAKI
IPC: H04N5/262
Filed: 1990-11-30
Abstract: PURPOSE:To obviate the generation of unsightly staircase-like zigzags on displayed images in an address discontinuous region of the output images by previously forming a blanking region in the region where addresses are discontinuous on the input images to the above-mentioned region of the output image. CONSTITUTION:A comparator circuit 18 is inputted with the writing address signal S3 inputted via a writing address generating circuit 17 from a CPU 15 and transmits a blanking addition signal S1 to a BLK adding circuit 11 when the writing address assigned by this writing address signal S3 coincides with the address previously assigned by an address discontinuous position assignment signal S4, by which the prescribed region including this discontinuous assigned part of the input video signal SVIN is changed to a black level. The input video signal SVIN changed to the black level in this discontinuous assignment part is stored as the output image to the address region allotted to the discontinuous part (TN) in the frame memory 12.
Patent JP-2001158456-A (JP)
Title: Liquid storing container and refill container for liquid storing container
Inventor: IGARASHI KOJI
IPC: B65D47/06
Filed: 1999-11-30
Abstract: PROBLEM TO BE SOLVED: To provide a liquid storing container and a refill container for the liquid storing container in which its inner plug can be easily removed, stored liquid can be efficiently refilled and the inner plug can be changed into a sanitary one every time the inner plug is replaced with a new one. SOLUTION: A liquid storing container is comprised of a container main body 2, an inner plug 7 and an outer cap 18. An upper outer surface of a port 3 of the container main body is provided with an engaging protuberance 5. A plurality of upward engagement protrusions 6 are spaced apart by a predetermined space at an interface position between the upper and lower segments of the port. The inner surface of the inner plug is provided with an engagement protuberance 5 and an engagement projection 11 engaged when the inner plug is installed. The lower end of the inner plug is provided with an engagement protuberance 13 engaged when the engagement protrusions 6 and the inner plug are installed, wherein the inner plug is turned in a circumferential direction when the inner plug is removed, ridden over the engagement protuberances to lift up the inner plug and the engaged state of both engagement protuberances is released.
Patent JP-2000160108-A (JP)
Title: Method for adhering fiber to rubber
Inventor: YAMAMOTO YOSHIYUKI
IPC: B29D30/40
Filed: 1998-11-30
Abstract: PROBLEM TO BE SOLVED: To adhere a fiber to a rubber with improving working environment and without essentially spoiling fiber-rubber adhering properties by using an adhesive solution in which used amount of formaldehyde is brought to zero or reduced. SOLUTION: This method for adhering a fiber to a rubber is to impregnate a fiber in an adhesive liquid comprising (A) resorcin or an initial condensate of a novolak type resorcin formaldehyde, (B) a melamine-based compound expressed by the formula [R is H, CH2OR' (R' is H,CH3 or C2H5)] and (C) a rubber latex, thereafter bury the treated fiber in an unvulcanized rubber and vulcanize the unvulcanized rubber to integrate the fiber with the rubber.
Patent JP-H10178349-A (JP)
Title: Coding and decoding method for audio signal
Inventor: GOTO MICHIYO
IPC: H04N19/00
Filed: 1996-12-19
Abstract: PROBLEM TO BE SOLVED: To encode lots of additional information simultaneously in the case of coding a digital audio signal. SOLUTION: Relating to the coding method for an audio signal generating an audio bit stream according to an MPEG 1 audio layer 1 format, a header 11, an error check 12 and audio data 13 consisting of only bit assignment, and at least one or more frames consisting of ancillary data 14 are included, then lots of additional information is coded in the ancillary data.
Patent JP-2001149549-A (JP)
Title: Pinball game machine
Inventor: UGAWA SHOHACHI
IPC: A63F7/02
Filed: 1999-11-30
Abstract: PROBLEM TO BE SOLVED: To provided a pinball game machine capable of enhancing visual interest by a ball rolling motion by increasing the number of balls to be guided to a ball rolling part and also extending a state where the ball stays in the ball rolling part. SOLUTION: This game machine is constituted in such a way that the ball introduced by an introduction nail group 213 collides with an introduction nail group 212 to be guided to a stage part 200 by arranging a shot ball passage possible interval between the groups 213 and 212 and setting the longitudinal directions of the groups 213 and 212 not to be on the same straight line. Then the jump-back of the ball with the collision with the group 212 is enlarged so that the number of the balls to be introduced to the stage part 200 is increased. Besides, the ball is guided to the deep part of the stage part 200 to stay long on the part 200, so that visual interest by the ball rolling motion is enhanced.
Patent JP-2001156583-A (JP)
Title: Piezoelectric resonator
Inventor: NISHIKAWA HIROYUKI
IPC: H03H9/17
Filed: 1999-11-30
Abstract: PROBLEM TO BE SOLVED: To provide a small-sized piezoelectric resonator with less vibration energy loss. SOLUTION: In the piezoelectric resonator formed by providing a vibrator 5 consisting of a piezoelectric body 3 held between a pair of electrodes 2 and 4 onto a substrate 1, at least either of the electrodes of the piezoelectric resonator is formed to sawtooth-shape and slopes 9a and 9b configuring its teeth 8 have an angle of about 45 degrees with respect to the surface 3a of the piezoelectric body 3.
Patent JP-2000164673-A (JP)
Title: Transfer device, and holder and transfer arm
Inventor: SUZUKI YASUHIRO
IPC: H01L21/677
Filed: 1998-11-30
Abstract: PROBLEM TO BE SOLVED: To cope with members having various shapes or sizes to be transferred, without changing the finger of a transfer arm. SOLUTION: This device is provided with a holder 8, which is provided with a pair of holding members 16 and 16 that hold a member R to be transferred, when they become close to each other with respect to the member R and release the member R when they become apart from each other, a transfer arm 7 which is provided with a holder-holding member 13 for holding the holder 8 and moves the holder 8 held by the holder-holding member 13 to a predetermined position, and a moving mechanism 24 for moving the holding members 16 and 16 of the holder 8 which is held by the holder holding member 13, in the direction such direction that the holding members 16 and 16 move in approaching or parting to/from each other.
Patent JP-H11171918-A (JP)
Title: Production of norbornene-based random copolymer
Inventor: YAMAGUCHI MASAYOSHI
IPC: C08F232/08
Filed: 1997-12-11
Abstract: PROBLEM TO BE SOLVED: To obtain the subject copolymer having a high glass transition point, by copolymerizing an α-olefin with a specific norbornene in the presence of a prescribed catalyst and specifying a glass transition point, etc. SOLUTION: (A) An 2-20C α-olefin is copolymerized with (B) a norbornene of formula I (R<1> to R<8> are each H, a halogen or a hydrocarbon and R<5> is bonded to R<6> and R<7> is bonded to R<8> to form an alkylidene) in the presence of (C) (i) a transition metal compound of formula II [M is Ti, Zr or the like; R<11> and R<12> are each a (substituted) indenyl or the like; R<13> and R<14> are each a 1-10C alkyl a 6-10C aryl or the like; X<1> and X<2> are each an O-containing group, H or the like], (ii) an organoaluminum oxy compound and /or a compound which is reacted with the component (i) to form a counter ion and (iii) optionally an organoaluminum compound to give the objective copolymer containing >=60 mol.% of a constituent unit derived from the component B and having >=160 deg.C glass transition point.
Patent JP-H07162340-A (JP)
Title: Synchronization tracking circuit for spread spectrum communication
Inventor: OE ICHIRO
IPC: H04B1/7085
Filed: 1993-12-10
Abstract: PURPOSE:To reduce the number of parts to be used in a high frequency band in a delay lock loop type spread spectrum synchronization tracking circuit. CONSTITUTION:Respective PN code sequences P1, Pr, Pe are codes having the same pattern, the Pr is delayed from the P1 by 1/2 chip and advanced from the Pe by 1/2 chip. A local oscillation signal S1 and the PN code sequence are mutually multiplied by a multiplier 34. A correlator 36 executes the down conversion and inverse spread of a spread received signal Sr. A multiplier 24 mutually multiplies the sequences P1 and Pr. A correlator 14 finds out correlation between the multiplied result and the output of the correlator 36. A multiplier 26 mutually multiplies the sequences Pe and Pr. A correlator 16 finds out correlation between the multiplied output and the output of the correlator 36. Correlation outputs from both the correlators 14, 16 are added to an adder 18 to find out an error signal (e), which is inputted to a VCO 12 to control its clock frequency.
Patent JP-H10178793-A (JP)
Title: Motor controller
Inventor: TSURUTA KAZUHIRO
IPC: H02P29/00
Filed: 1996-12-20
Abstract: PROBLEM TO BE SOLVED: To eliminate the influence of friction, disturbance, etc., on a motor by identifying the inertia of the motor from the ratio of the value obtained by integrating the absolute value of the speed deviation of a speed control section with time in a prescribed period to the value obtained by integrating the absolute value of the speed deviation of an estimating section with time in the same section. SOLUTION: A command generating section 11 outputs a speed command Vref to a speed control section 12 and the section 12 outputs a motor speed Vfb to an estimating section 13 and a speed deviation Ve and the speed Vfb to an identifying section 14. The estimating section 13 simulates the control section 12 so as to make a model speed Vfb ' coincident with the motor speed Vfb and outputs a speed deviation Ve ' and a speed Vfb ' to the identifying section 14. The section 14 finds the inertia of a motor from the speed deviation Ve and speed Vfb from the control section 12 and speed deviation Ve ' and speed Vfb ' from the estimating section 13 and identifies the inertia.