baber/WOPTO huggingface dataset:
Patent JP-H02246236-A (JP)
Title: Flip-chip bonding method
Inventor: OCHIAI MASAYUKI
IPC: H05K3/34
Filed: 1989-03-20
Abstract: PURPOSE:To alleviate stress acting on the junction interface between a brittle semiconductor element and solder bumps by forming the central part of each solder bump in a constricted shape, and buffering the stress due to thermal strain by the entire solder bumps. CONSTITUTION:Semispherical solder bumps 12 are formed. A silicon plate 13 having the same size is placed on the solder bumps 12. Flat parts are formed on the tops of all the solder bumps 12 by heating again. A semiconductor ele ment 11 is turned over and mounted on a circuit wiring board 14 on which flux is applied. The top parts of the solder bumps 12 are brought into contact with electrode parts 15 of the circuit wiring board 14. After a spacer 16 compris ing one-liquid type room-temperature hardening silicone rubber filled with a dispenser is hardened, the solder bumps 12 is made to reflow. Since the top part of the solder bump is wider than the area of the electrode part 5, the central part of the solder bump is constricted at the time of reflow. Therefore, stress due to thermal strain is not concentrated in the vicinities of both interfaces of the junction parts.
Patent JP-S58185839-A (JP)
Inventor: SHINTANI TAKESHI
IPC: E04B1/32
Filed: 1982-04-20
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。
Patent JP-S62223078-A (JP)
Inventor: HORIE MASAAKI
IPC: C04B41/70
Filed: 1986-03-25
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-H04300272-A (JP)
Title: Thin oxide superconducting film and its production
Inventor: ICHIKAWA HIROSHI
IPC: H01B12/06
Filed: 1991-03-29
Abstract: PURPOSE:To provide a thin oxide superconducting film structure having increased superconducting transition temperature and to provide more effective production process for the above structure. CONSTITUTION:The objective structure has a substrate 17 alternately laminated with (A) laminar thin oxide superconducting films 31 at least containing bismuth (Bi), copper (Cu) and alkaline-earth metal (group IIa element) as main components and (B) thin oxide dielectric films 32 having a crystal lattice constant nearly equal to that of the component A and containing aluminum (A1) and one or more elements selected from lanthanum (La), yttrium (Y) and neodymium (Nd) as main components consisting high-melting material. The structure can be produced by alternately depositing an oxide containing at least Bi and an oxide containing at least copper and alkaline-earth metal (group IIa element) on the substrate 17. The alkaline-earth metal means one or more kinds of the groups IIa elements.
Patent JP-S60208863-A (JP)
Title: Mos transistor and manufacture thereof
Inventor: MATSUMOTO HIROSHI
IPC: H01L29/78
Filed: 1984-04-03
Abstract: PURPOSE:To enhance the dielectric strength of a gate and to obtain high withstanding voltage with good reproducibility, by a constitution wherein the thickness of a gate oxide film monotonously increases toward a drain region from a source region. CONSTITUTION:The thickness of agate oxide film 5 of a MOS transistor (Tr) monotonously increases toward the side of a drain 3 from the side of a source 2 on a substrate 1. In the MOSTr having high withstanding voltage, the dielectric breakdown to the gate oxide film is mainly caused by the following reason that is, a high potential difference is yielded between the drain electrode 3 and a gate electrode 6 under the state when the Tr is OFF, i.e., the gate voltage is at a low level and the channel is not conducted. In the above described constitution, the dielectric breakdown due to concentration of an electric field in the vicinity of the drain can be prevented. The increasing way of the film thickness toward the drain side from the source side is optimally designed. Thus the field strength in the gate oxide film in the vicinity of the drain can be made approximately uniform.
Patent JP-S55160365-A (JP)
Title: Reproducing device for discoid recording medium
Inventor: SANO KAZUHIKO
IPC: G11B7/12
Filed: 1979-05-29
Abstract: PURPOSE: To attain stable reproduction after pickup movement by holding a constant relation between a pickup method and carriage at any time when the lock group of a signal reproducing device which scans a recording track by turning a disk is generated.  
     CONSTITUTION: Carriage 1 is moved at a constant speed in the radius direction of disk 10 according to the groove pitch of disk 10 and pickup method 5 consisting of a cantilever has reproducing stylus 6 supported atop. In the constitution, when a locked group is generated, pushing member 9 of an actuator driving part is put into pulse motion by the signal of detecting method 11 to push cantilever 5 once by a constant distance and motor 4, on the other hand, is turned faster than normal rotation for a certain time to shift carriage 1 more by (d). Consequently the relation between the pickup method and carriage is held constant. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H01240730-A (JP)
Title: Exhaust device for two-cycle engine
Inventor: YAMAMOTO HITOSHI
IPC: F02B27/06
Filed: 1988-03-19
Abstract: PURPOSE:To prevent lowering of the output power of an engine due to leakage of exhaust gas by forming an abutting surface against which the upstream end surface of a reflecting pipe abuts in an exhaust pipe, and by providing a seal member on the abutting surface. CONSTITUTION:An exhaust pipe 4 is provided in the rear end part of its first pipe section 11 with an abutting surface 14 against which the upstream end surface of a reflecting pipe 16 abuts when the reflecting pipe 16 is moved toward the upstream side by a maximum distance. An annular seal member 31 made of SUS wool or the like is attached to the abutting surface 14. With this arrangement, it is possible to eliminate a risk of leakage of exhaust gas between the reflecting pipe and the exhaust pipe, thereby it is possible to prevent lowering of the output power of an engine.
Patent JP-H01239489-A (JP)
Title: Magnetic sensor and its manufacture
Inventor: SONE TAKEHIKO
IPC: G01R33/06
Filed: 1988-03-19
Abstract: PURPOSE:To prevent stress from extending to a semiconductor thin film and to prevent characteristic deterioration by forming an electrode part to be wire- bonded directly on a thin insulating layer film. CONSTITUTION:An adhesive 12, the thin insulating layer film 16, and the semiconductor thin film in a sensor pattern shape are stacked on a substrate 11 one over another in this order and the electrode part is further stacked. The electrode part 14 is partially in ohmic contact with the thin semiconductor film and the remaining part (electrode pad part) is formed directly on the thin insulating layer film 16. Then wire bonding is provided in the remaining part area of the electrode part 14. This electrode structure is formed by forming the electrode pad part to be wire-bonded directly on the thin insulating layer film, so the stress at the time of the wire bonding does not extend to the thin semiconductor film and its characteristic deterioration is not caused.
Patent JP-H06278694-A (JP)
Title: Electric power supply equipment in catamaran type ship
Inventor: TAKENAKA ISAROKU
IPC: B63B1/12
Filed: 1993-03-26
Abstract: PURPOSE:To improve weight balance and miniaturize distribution panels by connecting generators and distribution panels through breakers to be arranged in respective hulls, separately forming electric supply systems connected to the respective distribution panels to connect generation lines of the respective distribution panels, and controlling the breakers to make or break them. CONSTITUTION:Generators 11A, 11B and distribution panels 12A, 12B are arranged in respective hulls 2A, 2B respectively, and in the respective hulls 2A, 2B, the generator 11A and the distribution panel 12A, and the generator 11B and the distribution panel 12B are respectively connected through breakers. The electric supply system in a ship 1 is divided into two systems, and one is connected to the distribution panel 12A, while the other is connected to the distribution panel 12B. Bas-lines in the respective distribution panels 12A, 12B are connected to each other by a connecting cable 13. Then, a central control panel 15 is arranged in a steering room to remote-control the breakers in the respective hulls 2A, 2B to make or break them.
Patent JP-S52149951-A (JP)
Title: Carrier regeneration circuit
Inventor: OOTANI SUSUMU
IPC: H04L27/10
Filed: 1976-06-08
Abstract: PURPOSE: In the double two-phase phase modulation system, it is made possible to regenerate the carrier even during the other phase transition, so that the stable synchronous regenerated carrier can be obtained. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H09230946-A (JP)
Title: Reference voltage generator for ic tester
Inventor: IWAMOTO YUICHI
IPC: G01R1/28
Filed: 1996-02-28
Abstract: PROBLEM TO BE SOLVED: To provide the reference voltage generator which has high reliability by decreasing switches and resistors. SOLUTION: A data signal 11 is written in a register 1 with a write signal 12 and voltage data 13 and range data 14 are outputted. With the range data 14, the voltage data 13 are converted by a data converting circuit 2 and voltage data 21 are outputted. The voltage data 21 are written in a register 3 with a write signal 32 and voltage data 41 outputted from the register 3 are converted by a D/A converter 4 into an analog voltage. The analog output voltage 42 are outputted through an amplifier 5 which constitutes a voltage follower.
Patent JP-S58185828-A (JP)
Title: Structure of sump pit bottom
Inventor: TSUKAHARA KATSUMI
IPC: B65D90/02
Filed: 1982-04-23
Abstract: PURPOSE:To improve the flow of concrete during the placement as well as give sufficient strength to a foundation bolt anchor by independently separating between the reinforcement of a sump pit bottom plate and a foundation bolt anchor. CONSTITUTION:A reinforcing shape steel 4 and a shape steel 7 for a foundation bolt anchor are independently provided on the sump pit bottom plate 3. By this, the foundation bolt anchor 7 for setting a sump pit tank can have a sufficient strength and the pouring of concrete 8 can be sufficiently attained during the placement.
Patent JP-H01241236-A (JP)
Title: Multiple address communication control system
Inventor: MORITA HIROSHI
IPC: H04L12/28
Filed: 1988-03-23
Abstract: PURPOSE:To satisfy the request of the user of a master station by grasping an operationable slave station at the setting of a link in multiple address communication so as to set an object slave station. CONSTITUTION:The user of a master station 1-2 sets a threshold level of the number of slave stations being objects of the communication and designates the communication control at the setting of link, and sends a link setting frame 1-10 to a slave station. If no acknowledge frame 1-11 is obtained from all the number of object slave stations, the link setting framed 1-10 is sent again by timeout control. If link setting is disabled, the station disabled of link setting is informed to the user of the master station. The link is set again according to the command of the user and the data transmission is started when the link setting is enabled.
Patent JP-H09238071-A (JP)
Title: Digital pll circuit
Inventor: FUKUDA SHINICHI
IPC: H03L7/06
Filed: 1996-02-29
Abstract: PROBLEM TO BE SOLVED: To provide the digital phase locked loop(PLL) circuit from which an oscillation output (recovered clock) with high accuracy synchronously with an input signal. SOLUTION: The digital PLL is made up of an oscillation means 5, a conversion means 2 using an oscillation output SOSC from the oscillation means 5 as a sampling clock and converting an input signal into digital data, and oscillation control means 3, 4 detecting phase error information with respect to the oscillation output from the oscillation means 5 and controlling the oscillation output phase of the oscillation means 5 so as to reduce the phase error. That is, the conversion means 2 converting the input signal into digital data is included in the PLL loop.
Patent JP-H05276319-A (JP)
Title: Picture reader
IPC: H04N1/04
Filed: 1992-03-25
Abstract: PURPOSE:To minimize a pre-heat time of a hot cathode fluorescent tube. CONSTITUTION:The picture reader comprising a cathode ray fluorescent tube 30 preheated and driven to emit light through the use of a pre-heat circuit and a fluorescent tube lighting drive circuit 31 and arranged so as to emit the light onto an original face and comprising a picture read circuit 20 reading a picture through the reception of a reflected light from an original face is provided with lighting time count storage means 41, 42, 43, 48, extinguish time count storage means 41, 42, 43, 48, a pre-heat time length storage means 43, pre-heat time length selection means 41, 42, and pre-heat drive signal generating means 41, 42, and an optimum pre-heat time length PTi is automatically selected for the lighting this time based on a history relating to a preceding lighting time length Ti and extinguish time lengths ti occurred so far in the hot-cathode fluorescent tube 30 and a pre-heat circuit 31P is pre-heated and driven.
Patent JP-H10263481-A (JP)
Title: Powder and grain classifying apparatus
Inventor: OGATA AKIHIRO
IPC: B07B7/10
Filed: 1997-03-21
Abstract: PROBLEM TO BE SOLVED: To prevent that mill ball refuse in powder and grain is flown out or discharged to the outside of an inner cylinder from a communication hole at a time of the classification of powder and grain. SOLUTION: An outside cone part 12b is connected to the lower end of the outside cylindrical part 12a of an outer cylinder 12 of which the upper surface is closed and an inside cone part 13b is connected to the lower end of the inside cylindrical part 13a of an inner cylinder 13 of which the upper surface is opened provided in the outside cylindrical part 12a. A louver door 16 is provided to a ring-shaped communication hole 14 formed to the inside cone part 13b so as to pass air through the inside and outside of the inner cylinder 13 and a rotary shaft 17 is inserted into the outer and inner cylinders 12, 13 in a rotatable manner from the upper surface of the outer cylinder 12.  A dispersing plate 18 fixed to the lower end of a rotary shaft receives powder and grain 15 supplied into the inner cylinder 13 and rotary blades 19 fixed in the vicinity of the lower end of the rotary shaft generates revolving circulating air streams passing through the communication hole 14 inside and outside the inner cylinder 13. A skirt part 13h connected to the lower end of an upper cone part 13c of the inside cone part 13b is inclined in the same direction as the upper cone part 13c cover at least the upper part of the communication hole 14.
Patent JP-H01240446-A (JP)
Title: Pallet for mounting article
Inventor: HONMARU AKIRA
IPC: B65D19/34
Filed: 1988-03-22
Abstract: PURPOSE:To obtain a lightweight pallet at low cost and eliminate necessity of fumigation by a method wherein retainers are provided so that spacers in respective arrays are included together and their upper and lower faces are jointed to upper and lower flat plates, respectively. CONSTITUTION:At each end and at the center of each of retainers 20 which are formed in advance, spacers 18 are placed. Three retainers 20 each of which include three spacers 18 are formed by adhering the spacers 18 to retainers 20 with adhesive. The lower face of the three retainers 20 is adhered with adhesive to right and left ends and the center of the upper face of a lower plate 16. A flute direction of the plates 14, 16 and the retainers 20 are specified so that they coincide with each other. The upper faces of the respective retainers 20 are adhered with adhesive to the lower face of an upper plate 14. Sufficient adhesion strength can be attained by mechanically joining the retainers 20 and the upper and lower plates 14, 16 with a staples 22 at positions where spacers 18 are provided.
Patent JP-H03268331-A (JP)
Title: Base modulation type bipolar transistor
Inventor: SHIMIZU KATSUYA
IPC: H01L29/73
Filed: 1990-03-17
Abstract: PURPOSE:To improve the area efficiency and the switching speed of a chip, by connecting a gate region with an upper collector region. CONSTITUTION:A P<+> base region 5 containing an emitter region 7 and a P<+> base contact region 6 are formed independently so as to put a gate region 8A between them. The gate region 8A reaches an upper collector region 4, and connected with the collector region 4 in a gate region 8B being the end portion of the collector region 4. Foward bias is applied across the base contact region 6 and the emitter region 7. The collector region 4 is backward biased to the base contact region 6. Thus a base current flowing through a second base region 3 is modulated, and an output having negative resistance characteristics is obtained. Thereby chip area efficiency and response characteristics can be improved.
Patent JP-S55159415-A (JP)
Title: Color liquid crystal display device
Inventor: AOKI HISASHI
IPC: G02F1/137
Filed: 1979-05-31
Abstract: PURPOSE: To obtain the color liquid crystal display device which is capable of performing diversified displaying of bright background and good contrast by laminating a plurality of the guest-host liquid crystal display cells which perform displaying of different colors through homeotropic orientation.  
     CONSTITUTION: The liquid crystal layer composed of N-type nematic liquid crystal 15 and dye molecules 17a of A color is sandwiched between an intermediate substrate 11 provided with the display electrodes 12a, 12b of the same shape on the top and bottom surfaces and an upper substrate 11a provided with display electrodes 13a. The liquid crystal layer composed of liquid crysal 15 and dye molecules 17 of B color is sandwiched between substrate 11 and the lower substrate 11b provided with display electrode 13b, and the above-mentioned liquid crystal layers are homeotropically oriented to form the display device. With the above-mentioned display device, the display of the portions (background portions) where there is no voltage application becomes nearly of a white color and with this as a background, the distinct displaying of A color and B color and mixed colors of A and B, respectively, may be perfomed by applying voltage to the upper liquid crystal layer, lower liquid crystal layer or both upper and lower liquid crystal layers. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S51143585-A (JP)
Title: Catalyst
Inventor: TAKIZAWA HIDEMITSU
IPC: C07D295/20
Filed: 1975-06-05
Abstract: PURPOSE: Improved Raney catalyst which can be easily handled,has characteristic catalytic activity and,in adition,can be molded without losing its fundamental characters. 
     COPYRIGHT: (C)1976,JPO&Japio
Patent JP-S61270074-A (JP)
Inventor: ROBAATO DENISU MITSUCHIERU
IPC: B24D3/06
Filed: 1986-03-26
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-H02246391-A (JP)
Title: Semiconductor laser
Inventor: ODAKAWA TETSUSHI
IPC: G02F3/02
Filed: 1989-03-20
Abstract: PURPOSE:To hold light intensity necessary for setting at a small value and to eliminate a wavelength dependency by converting a set light to a current by photoelectric converting means, and then starting vibration while injecting the current to a saturable absorption region through electrodes. CONSTITUTION:An active layer 25 directly under an electrode 28 becomes a gain region with an injection current I2, the layer 25 of regions having no electrodes 28, 29 and directly under an electrode 29 is not substantially injected with a current, but becomes a saturable absorption region. When a light is injected externally to this bistable semiconductor laser 21 and set, a signal light is once converted to a current by a photodetector 22, and injected to the electrode 29 to make the set wavelength sensitivity flat. Thus, the set light is once converted to the current by the photodiode 31 to be injected to the absorption region of the layer 25 of the laser 21 to be oscillated. Thus, the light intensity necessary for setting in the laser 21 is held at a small value, and its wavelength dependency is made small.
Patent JP-2000264944-A (JP)
Title: One pack moisture-curable type polyurethane composition
Inventor: MIYATA AKIHIRO
IPC: C09K3/18
Filed: 1999-03-15
Abstract: PROBLEM TO BE SOLVED: To obtain the subject composition which has good foaming resistance and excellent adhesivity to glass, metals, coated steel plates, mortar, plastics/and the like, even when a primer is not used, by mixing a urethane prepolymer with a specific polyester. SOLUTION: This one pack moisture-curable type polyurethane composition comprises (A) a urethane prepolymer and (B) a polyester having isocyanate groups and alkoxysilyl groups in the molecule. The component A comprises the reaction product of a polyol compound (for example, a polyetherpolyol) with an excessive polyisocyanate compound (for example, 2,4-tolylene diisocyanate). The component B is preferably obtained by reacting a polyesterpolyol with a polyisocyanate compound and a silane compound having an isocyanato group and an alkoxysilyl group in the molecule. The content of the component B is preferably 0.1-20 pts.wt. based on the total amount of the composition.
Patent JP-H01241196-A (JP)
Title: Integrated circuit and mounting substrate
Inventor: YOKOSUKA SHIGERU
IPC: H01L23/50
Filed: 1988-03-23
Abstract: PURPOSE:To increase the reliability of the soldering at the time of the mounting, by providing protrusions protruding toward a substrate and recesses fitting for inserting the protrusions respectively at some sections of the parts for fixing an integrated circuit. CONSTITUTION:Protrusions 13 of a quadrangular pyramid are provided downward toward a substrate 20 at fixing-to-a-substrate parts 12, being at the tips of the leads 11 of an integrated circuit 10. And, recesses 23 of the quadrangular pyramid, being somewhat larger than the protrusions 13 and fitting them, are provided at the lead fixing parts 22 of the tips of conductive patterns 21. By providing the protrusions 13 and recesses 23 in this way, when the integrated circuit 10 is mounted on the printed circuit substrate 20 interposing an adhesive agent 31, the protrusions 13 at the fixing-to- a-substrate portions 12 are inserted into the recesses 23 at the lead fixing parts 22 of the conductor patterns 21. When they are put into a reflow furnace in this state, solder 30 melts by the heat of infrared rays, cools, and hardens some time later. Thus, the fixing-to-a-substrate part 12 of each lead 11 is securely soldered with the lead fixing part 22, to be connected, of each conductor pattern 21. In this way, the integrated circuit 10 is securely fixed to the mounting substrate 20, and the reliability of the soldering can be increased.
Patent JP-S62226643-A (JP)
Title: Formation of multilayer interconnection
Inventor: HARADA YUSUKE
IPC: H01L21/3205
Filed: 1986-03-28
Abstract: PURPOSE:To enable a layer to be deposited by plating with a high yield within an aperture formed in an interlayer insulating film, by performing electroless plating after formation of a palladium activated layer on a wiring layer. CONSTITUTION:After an insulating film 22 is provided on an IC substrate 21, a film 23 of an alloy containing Al-Si is formed thereon for providing a wiring layer. An interlayer insulating film 24 is then formed on the film 23, and an aperture 25 is selectively provided in the film 24 such that the aperture reaches the film 23. Palladium is then vapor deposited in vacuum on the whole surface and unrequired portions of the palladium are removed so that an activated layer 26 of the palladium is formed only on the portion of the film 23 exposed in the aperture 25. The structure is dipped in an electroless plating liquid having a predetermined composition so that a nickel-containing layer 27 is deposited selectively in the aperture 25 such that the layer 27 will not form steps with the film 24. After that, a film of an alloy containing Al-Si 28 is formed on the film 24 for providing a wiring layer extending over the layer 27.