baber/WOPTO huggingface dataset:
Patent JP-S5853017-A (JP)
Title: Vertical magnetic recording and reproducing head
Inventor: TANAKA MOTOHARU
IPC: G11B5/187
Filed: 1981-09-24
Abstract: PURPOSE:To decrease errors due to the accumulation of dust at the tip of a magnetic shaft, by arranging a compressed air delivery unit at the head of a main magnetic pole and bringing the magnetic shaft of a main magnetic pole into contact with the surface of a magnetic recording medium at the upper side with compressed air at recording and reproduction only. CONSTITUTION:An air delivery unit 9 is arranged at the head of a main magnetic pole 3. This unit 9 has an air reservoir 12 pressing the main magnetic pole 3 and an air reservoir 11 having a compressed air delivery inlet 10 to which compressed air A0 is delivered, and a throttle device 13 regulating the pressure is formed between the air reservoirs 11 and 12. A vertical magnetic recording and reproducing head is positioned under a magnetic recording medium A, the compressed air A0 is delivered to the air reservoir 11 only at the recording and reproduction of information and a magnetic shaft 1 of the main magnetic pole 3 is brought into contact with the magnetic recording medium A under a specified pressure, allowing to eliminate errors due to accumulation of dust at the tip of magnetic shaft.
Patent JP-H0445201-A (JP)
Title: Manufacture of nb-al series intermetallic compound sintered compact body
Inventor: KUSAKA KATSUJI
IPC: B22F9/04
Filed: 1990-06-09
Abstract: PURPOSE:To obtain a formed body having the desired composition and excellent sinterability and high density and high strength at high temp. by making mixed powder of Nb powder and Al powder into intermetallic compound with mechanical alloying method, pulverizing this and forming with injection compacting or slurry casting. CONSTITUTION:The Nb powder with Al powder, the Nb powder with Nb-Al allay powder, the Al powder with Nb-Al alloy powder, the Nb powder, Al powder with Nb-Al alloy powder, etc., are mixed. These raw material powders are mechanically pulverized and mixed to manufacture the Nb-Al series intermetallic compound with mutual penetrating diffusion of the metal atoms. The raw material metal mixed powder is further pulverized into small diameter and the intermetallic compound having the average particle diameter smaller than the average particle diameter of mixed powder, is manufactured and the good fluidity is given. The Nb content in the intermetallic compound is made to >=75wt%. By using the obtd. powder, the sintered compact body is manufactured with the injection compacting method or the slurry casting method.
Patent JP-H05325520-A (JP)
Title: Disk selecting and driving device
Inventor: AIDA KIYOBUMI
IPC: G11B17/26
Filed: 1992-05-19
Abstract: PURPOSE:To simplify the constitution of an operating part operating respective units when two disk driving units having disk selecting functions and disk driving functions are provided. CONSTITUTION:The first driving unit A selecting a disk D from a magazine M1 housing plural disks D and driving the disk D is connected with the second disk driving unit B selecting a disk D from a magazine M2 housing plural disks D and drive the disk D. Then, both disk driving units A and B are operated by operation members disposed on an operation surface 4 at the nose part of one disk driving unit A.
Patent JP-H0444055-A (JP)
Title: Image forming method
Inventor: YAMAZAKI HIROSHI
IPC: G03G9/097
Filed: 1990-06-12
Abstract: PURPOSE:To stably form high-density images without generating ghost images by forcibly allowing a charge control agent to exist not only on the surface of toner particles but in the inside as well and regulating the surface existence quantity (x) and entire part existence quantity (y) of the charge control agent to satisfy specific conditions. CONSTITUTION:The magnetic toner particles contain the charge control agent on the surface and inside thereof. The quantity 'surface existence quantity' (x) of the charge control agent existing on the surface layer of the magnetic toner particles and the quantity 'entire part existence quantity' (y) of the charge control agent existing over the entire part of the magnetic toner particles satisfy expressions I and II. In the expression I, (x) denotes the number % of the charge control agent and (y) denotes the weight % of the charge control agent. Not only the rise of the triboelectrostatic chargeability of the magnetic toner but also the stability thereof are exceedingly improved and the advantages of the contactless developing method using oscillation electric fields are sufficiently exhibited. The high-density images which are free from the fogging are stably formed in this way without generating the ghost images.
Patent JP-2000338700-A (JP)
Title: Electrophotographic photoreceptor, its production, process cartridge and electrophotographic device
Inventor: NAKADA KOICHI
IPC: C23C22/07
Filed: 1999-05-31
Abstract: PROBLEM TO BE SOLVED: To produce an electrophotographic photoreceptor causing no image defects in any environment and less liable to a change in potential in an easy and stable manner at a low cost. SOLUTION: The electrophotographic photoreceptor has a photosensitive layer on an aluminum substrate and a protective layer on the photosensitive layer. The surface of the substrate on the photosensitive layer side contains aluminum, oxygen and titanium or aluminum, oxygen and zirconium. The electrophotographic photoreceptor is produced by subjecting an aluminum substrate to chemical conversion treatment with an acidic aqueous solution containing a titanium or zirconium salt, forming the photosensitive layer and forming the protective layer on the photosensitive layer. Each of the process cartridge and the electrophotographic device has the electrophotographic photoreceptor.
Patent JP-S5941506-A (JP)
Title: Rising and falling device for dam
Inventor: ARAGATA KUNIKAZU
IPC: E02B7/00
Filed: 1982-08-31
Abstract: PURPOSE:To prevent the failure of operations due to rusting and the occurrence of maloperation by a method in which a flexible bag dam having a rising and falling mechanism is provided with a siphon tube in such a way as to enable a preparation for automatic rising of the dam to be made simply. CONSTITUTION:An air blower to send air under pressure to a flexible bag dam 1 is provided through an air supply tube a check valve 6 and a manual falling valve 7. An operating pit is led to flowing water A on the upstream side through a notched weir 10 and also to flowing water B on the downstream side through siphon tube 11 and a siphon breaker 18. An excess air discharge tube 12 is led to the notched weir 10 at its lower part and also to the air supply tube 8 through a valve 13 at its upper part. A water-sealing tube 15 is also led to the lower end of a U-shaped exhaust tube 14 at its lower part and also to a negative pressure tube 16 leading to the siphone tube 11 at its upper part. The lower part of the tube 15 is also provided with a U-shaped communication tube 17.
Patent JP-H0316427-A (JP)
Title: Input device for serving also as output device
Inventor: TSUKAMOTO TAKASHI
IPC: H03K19/0175
Filed: 1989-06-14
Abstract: PURPOSE:To realize an input device serving also as output device with low power consumption by adding a pull-down or pull-up circuit intermediate level deciding circuit to a conventional input device serving also as output device. CONSTITUTION:When an output to the input/output terminal 104 of an input/ output buffer circuit 101 is in the high resistance state and the input/output buffer circuit 101 is used in the input state, and when an input serving also as output terminal 104 reaches an intermediate level, an intermediate level deciding circuit 201 decides the intermediate level and the result is outputted to an intermediate level signal 203. A pull-down or pull-up circuit 202 is controlled by the intermediate level signal 203 and in the on-state when the input serving also as output terminal 104 is at an intermediate level. Consequently, the terminal 104 is fixed to a 1st or a 2nd power level. That is, a through- current flowing from the 1st power supply to a 2nd power supply generated in the input/output buffer circuit 101 when terminal 104 is at the intermediate level is blocked to attain low power consumption.
Patent JP-H01318111-A (JP)
Title: Method for operating tablet device
Inventor: IIDA MASAYUKI
IPC: G06F3/048
Filed: 1988-06-20
Abstract: PURPOSE:To obtain a tablet device for attaining high resolution even in case of using an A/D converter with low quantum accuracy by impressing voltage between electrodes fixed to both the ends of a detecting plate, deciding approximate coordinates and impressing the voltage two electrodes most adjacent to the coordinates. CONSTITUTION:The title device is provided with coordinate detecting plates 1, 2 each of which has three or more electrodes X, Y in order to detect the coordinates of plural axes, these detecting plates 1, 2 are controlled by a detecting plate control part 3, the coordinates are decided by a coordinate deciding part 4 based on detecting signals obtained from the detecting plates 1, 2 and the decided result is outputted. In this case, an external instruction or a prescribed operating instruction is applied from a switch or the like on a body. In the tablet device, approximate coordinates are decided by the deciding part 4 by impressing voltage between the electrodes on both the ends of the detecting plates 1, 2 and then voltage is impressed between two electrodes 11, 21 most adjacent to the coordinates, so that the coordinates of high resolution can be decided.
Patent JP-H0714438-A (JP)
Title: Four-core balanced transmission cable
Inventor: KOBAYASHI KIYOHIDE
IPC: H01B11/08
Filed: 1993-06-23
Abstract: PURPOSE:To obtain a transmission cable which is slender, flexible, and light, and coincident to the standard for cabling system of a computer, by providing a central inclusion with an adequate thickness and of a low dielectric constant, at the center of a quad structure. CONSTITUTION:In a quad structure of cable used to the cabling system of a computer, an insulating electric wire covered with a polyolefine with the dielectric constant less than 1.6, and the foaming rate about 60% is formed. Then, four electric wires 2 with the same outer diameter are arranged around a center inclusion 1 formed of a high density polyethylene cord of a low dielectric constant, with the diameter more than 0.35 times and less than 0.45 times of the outer diameter of the electric wire 2, and a polyester tape 3 is used to press and cover the outer periphery of four wires 2. As a result, the quad structure satisfies the standard as a cable for cabling system of the computer, and a cable having a small outer diameter, a flexibility, and a light weight can be obtained.
Patent JP-S638464-A (JP)
Title: Fluorescent aqueous ink
Inventor: HAMAMOTO HIDETOSHI
IPC: C09D11/16
Filed: 1986-06-28
Abstract: PURPOSE:The titled ink well coloring in fluorescence, not erasing halograph on non-carbon paper, not causing change in color on heat-sensitive paper, containing specific dye, sorbitan and water. CONSTITUTION:The aimed ink consisting of (A) preferably 0.05-1.00wt% dye shown by the formula (A is Na, K, monoethanolamine, diethanolamine or triethanolamine), (B) preferably 1.0-50wt% sorbitan and (C) water.
Patent JP-S6214263-A (JP)
Title: Document picture processing system
Inventor: NAKANO YASUAKI
IPC: G06F17/30
Filed: 1985-07-12
Abstract: PURPOSE:To determine the identifying information of a document and to decrease the key input work at inputting the document by extracting a frame part from the picture of the inputted document, and identifying the character existing in the frame. CONSTITUTION:The information (document picture on a document 3 is scanned, further, digitized and stored to a memory 51 through a bus 1 by a photoelectric converting device 4. Next, for the document picture, regularization such as the position correcting processing and the inclination correcting processing is executed and the obtained picture is stored into a memory 52. For the regular ized picture, the special pattern extracting processing is executed, and the posi tion information of the extracted special pattern is stored into a memory 53. The area of the special pattern is extracted from the document, the picture (character pattern) only included in the area is sent to a character identifying part and the character pattern is identified. Consequently, without being influ enced by the picture-writing of the external part of the special pattern, the character can be easily fed and identified.
Patent JP-H08321457-A (JP)
Title: Aligner
Inventor: HAGIWARA SHIGERU
IPC: G03F9/00
Filed: 1995-05-26
Abstract: PURPOSE: To secure the flatness of a substrate with high accuracy without being influenced by foreign matter even if foreign matter such as rust, etc., of submicron size exist. CONSTITUTION: A holder 24 consists of many face elements 52, and a suction hole is made in each face element 52. Each face element 52 is constituted to be capable of being driven independently in vertical direction. Therefore, when a stage on which the holder 24 is provided shifts in two-dimensional direction in such condition that a wafer is retained on the holder 24, the flatness of the wafer is detected by an AF sensor or the like, and by moving each face element in vertical direction, according to the detection result of this flatness, the flatness of the wafer can be corrected separately for each section corresponding to the face element 52.
Patent JP-S6047609-A (JP)
Inventor: NAKA HIROKAZU
IPC: A01C11/02
Filed: 1983-08-23
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-S6310431-A (JP)
Title: Magnetron
Inventor: YOSHIHARA MASAKUNI
IPC: H01J23/00
Filed: 1986-06-27
Abstract: PURPOSE:To prevent leakage of numerous sorts of harmonic components, by providing a reversing part with the axial length equal to about 1/4 of the higher harmonic wavelength, at the edge of the opening of a metallic hat-form body forming an electromagnetic wave transmitting terminal engaged with a metallic exhaust pipe. CONSTITUTION:A metallic hat-form body 9 engaged with a cylinder 4c of a metallic exhaust pipe 4 has a reversing part 9a at the edge of the opening, and the axial length (electric length) a of the reversing part 9a is set about 1/4 of the n-th harmonic wavelength determined by oscillation frequency of a magnetron. Since the hat-form body 9 is engaged with the cylinder part of the exhaust pipe 4 of the main body of completed magnetron by pressing-in, a hat-form body 9 with a necessary axial length may be installed adequately in the final phase of magnetron manufacturing process. Therefore, since the reversing part functions as a choke ring, leakage of the harmonic components can be prevented without any choke ring to be furnished in the tube. Moreover, since any kind of metallic hat-form body can be installed to the completed magnetron main body, the interexchangability of magnetron main body is improved.
Patent JP-S637669-A (JP)
Title: Semiconductor device
Inventor: ASAI SATORU
IPC: H01L29/778
Filed: 1986-06-28
Abstract: PURPOSE:To contrive compatibility between the high gate breakdown strength and the low ohmic resistance and the source resistance of the semiconductor device by a method wherein a Schottky contacting gate electrode is formed on the region ranging from the neighbourhood of the surface of atomic plane doping to the surface of a cap layer of low carrier density. CONSTITUTION:For example, the title semiconductor device is composed of a GaAs channel layer 2, an AlGaAs electron supply layer 3, a GaAs cap layer 4 and a Schottky gate electrode 6. The impurities such as silicon (Si), for example, generating the carrier (electron) of the type same as that of the electron supply layer 3, are subjucted to atomic-plane doping, a high carrier concentration is given to the region in the vicinity of said doped surface, and the carreir density lower than the abovementioned carrier concentration in the vicinity of the contact surface of the gate electrode 6, with which sufficient gate breakdown strength can be secured, is formed. Also, the alloyed region to be formed between an ohmic contact electrode and the GaAs carrier layer 4 is brought to come in contact with the high carrier density layer located in the vicinity of the doped surface. As a result, the contact resistance and the source resistance can be reduced, and the gate breakdown strength can also be secured simultaneously.
Patent JP-H11343976-A (JP)
Title: Oil separating system
Inventor: NAKAGAWA KENJI
IPC: B01D17/04
Filed: 1998-06-02
Abstract: PROBLEM TO BE SOLVED: To effectively separate drain into oil and water by providing a container storing drain generated when compressed air is cooled, performing pressure reduction for the inside of this container by a vacuum pump and providing a valve controlling drain amount flowing into the container, in an oil-feeding type air compressor. SOLUTION: Air compressed by an oil-feeding type air compressor 7 contains oil content, and when this compressed air is cooled by an air cooling device 8, moisture content is condensed. Drain generated in the air cooling device 8 and oil content contained in compressed air become emulsion states and flows in an oily water separating vacuum chamber 2 via a trap 9 and an oily water feed valve 3. When fixed quantity of drain is accumulated in the vacuum chamber 2, the oily water feed valve 3 is closed, drain is heated by a heating device 6 and a vacuum pump 1 is operated. As a result, moisture content in drain within the vacuum chamber 2 is boiled, is discharged to the atmosphere through the vacuum pump 1, only oil content is left within the vacuum chamber 2 and this oil content is subsequently discharged via a drain oil valve 4.
Patent JP-H09330156-A (JP)
Title: Bus system and circuit board
Inventor: UMEMURA MASAYA
IPC: G11C11/407
Filed: 1996-06-13
Abstract: PROBLEM TO BE SOLVED: To shorten the signal transfer time between a bus master and bus slaves while holding it nearly constant without increasing the number of pins of the bus master. SOLUTION: This system is equipped with synchronous RAMs 4a, a memory controller 1a, a bus 5a which inputs the signal outputted from the memory controller 1a to the synchronous RAMs 4a, and a bus 6a which inputs signals outputted from the synchronous RAMs 4a to the memory controller 1a. The buses 5a and 6a have trunk lines 51a and 61a connected to the memory controller 1a and two branch lines connected to the trunk lines. The synchronous RAMs 4a are connected to the corresponding branch lines so that the total lengths of the lengths of the bus 5a between the synchronous RAMs 4a and memory controller 1a and the lengths of the bus 6a between the synchronous RAMs 4a and memory controller 1a become nearly equal to one another.
Patent JP-S6213234-A (JP)
Title: Method and apparatus for casting lead alloy
Inventor: YOSHIMURA TAKAYUKI
IPC: B22C1/00
Filed: 1985-07-10
Abstract: PURPOSE:To form casting molds by injection molding and to obtain the casting molds having the same shape with ease at a low cost in a method for casting a lead alloy by using the casting mold consisting of an arom. polyester contg. specific three kinds of monomers as the constituting material. CONSTITUTION:The casting molds 2, 7 for grid bodies are manufactured by injection molding using the arom. polyester contg. three kinds of monomers; a terephthalic acid, p-hydroxy benzoic acid and bisphenol as the constituting material. The molds 2 (stationary type 1), 7 (movable type 6) are mounted to temp. control plates 3 (stationary type 1), 8 (movable type 6) and the lead alloy is poured therein, by which the grid bodies are obtd.
Patent JP-H07333206-A (JP)
Title: Hydrocarbon analyser
Inventor: OTSUKI SATOSHI
IPC: G01N30/14
Filed: 1994-06-11
Abstract: PURPOSE:To provide a hydrocarbon analyser enabling continuous measurement and high in methane selectivity. CONSTITUTION:A hydrocarbon analyser is equipped with a supply line 2 of sample gas S, a hydrogen flame ionizing detector (first detection means) 3 detecting the concn. of total hydrocarbon containing methane in the samaple gas S and a hydrogen flame ionizing detector (second detection means) 4. detecting the concn. of methane in the sample gas S and further equipped with a trap means 5 trapping a gas component having a b.p. higher than that of methane such as ethane, propane or hexane and permitting methane and a gas component having a b.p. lower than that of methane to pass, the first detection line 6 branched from the supply line 2 on the upstream side of the trap means 5 to detect the concn. of total hydrocarbon and a second detection line 7 formed on the downstream side of the trap means 5 and detecting the concn. of methane.
Patent JP-S5579758-A (JP)
Title: Steering mechanism for motorcar
Inventor: TAKAMURA MASASHI
IPC: B62D7/08
Filed: 1978-12-13
Abstract: PURPOSE:To approximate a steering angle of an actual outer wheel with that of an ideal outer steering wheel, thereby, smooth turnings and prevent wearing of a tire by connecting an idler arm pivotably supported in an axle to an inner end portion of a tie-rod in a piled relation. CONSTITUTION:A fore end portion of an idler arm 11 is pivotably supported to a central portion of an axle 10 by a pin 12 while a first and second tie-rod 13, 14 are pivotably connected to a rear end portion of the idler arm 11 by pins 15, 16 respectively. The tie-rods 13, 14 are constituted such that respective inner end portions thereof are piled by a constant length. According to this constitution, even if neutral position angles theta of tie-rod arms 17, 18 are big, a relation between steering angles of an inner and an outer wheels may be approximated to an ideal relation by selecting the length 1' of the idler arm and a tie-rod attaching angle theta' properly.
Patent JP-H05102790-A (JP)
Title: Current synthesis circuit
Inventor: WATABE HISAKO
IPC: H03H11/20
Filed: 1991-06-25
Abstract: PURPOSE:To attain the cascade connection of the current synthesis circuits in which a synthesis ratio of currents with a different phase is controlled and a signal of a desired phase is outputted by increasing the input impedance of the circuit. CONSTITUTION:A signal with a different phase is inputted to 1st and 2nd differential amplifiers 1, 2 respectively and a ratio of currents flowing to the 1st and 2nd differential amplifiers 1, 2 is controlled by applying a control signal to a 3rd differential amplifier 3 connecting to a constant current circuit 6. Then the current flowing to the 1st and 2nd differential amplifiers 1, 2 is synthesized to output a signal with a desired phase and an emitter follower circuit 4 is connected to an input stage of the 1st and 2nd differential amplifiers 1, 2 to increase the input impedance and a capacitance coupling circuit 5 is connected to the circuit 4 to eliminate the effect of a DC level of a pre-stage.
Patent JP-H053275-A (JP)
Title: Lead frame of semiconductor device
Inventor: YOSHIDA TAKANOBU
IPC: H05K3/34
Filed: 1991-06-25
Abstract: PURPOSE:To increase the strength of solder junction between L-shaped leads and a printed board of a semiconductor device by improving solder wettability (solderability) on the tip face of a lead. CONSTITUTION:In a lead frame 24 that is an integral body of a plurality of leads 24b arrayed in parallel and coupled each other with tiebars 24c inside a frame 24a, each lead 24b should have a free tip face 24d resulting from cutting the tip face, and side faces of adjacent leads 24b are coupled integrally with auxiliary tiebars 24e in vicinities of free tip faces 24a.