baber/WOPTO huggingface dataset:
Patent JP-H02126655-A (JP)
Title: Semiconductor device
Inventor: OHIRA HIROYOSHI
IPC: H01L23/29
Filed: 1988-11-05
Abstract: PURPOSE:To remove a metal part of a die pad part and to enhance reliability against a thermal stress by a method wherein the die pad part of a plastic package is formed of an epoxy-based resin or a polyimide-based resin whose close contact property to a molding resin is good. CONSTITUTION:A lead frame whose metal die pad part 7 has been removed from a lead frame is first prepared. Then, a die pad part is formed of an epoxy resin at the lead frame by using a transfer molding technique. During this process, the die pad part must be designed to have a shape and a thickness which are sufficiently strong in order to prevent a crack or the like from being caused in a bonding process as a posterior process. Then, a semiconductor chip is die-bonded to the die pad, made of the epoxy resin at the lead frame, which has been manufactured in this manner.
Patent JP-H04152539-A (JP)
Title: Semiconductor device
Inventor: TAKIGAWA TAKATOSHI
IPC: H01L21/60
Filed: 1990-10-16
Abstract: PURPOSE:To obtain a semiconductor device on which a digital semiconductor element executing a high-speed switching operation can be mounted at low costs by a method wherein leads for signal use are overlapped with and arranged on a metal sheet at a ground potential so as to sandwich an insulating organic resin film and leads for ground use are connected to the metal sheet via a conductive substance directly under it. CONSTITUTION:An insulating organic resin film 3 having an opening 8 is fixed, via an insulating organic resin, onto a metal sheet 2 on which a semiconductor element 1 is mounted. In addition, a lead frame 4 arranged toward the outside of the metal sheet 2 from edge-side parts of said opening 8 is fixed onto the film 3 via an insulating organic adhesive. Leads Vcc for power supply use and leads S for signal use in the lead frame 4 are connected to electrodes on the semiconductor element 1 via wires 5. On the other hand, leads G for ground use are connected individually to electrodes of the semiconductor element 1 via wires which connect the element 1 to a conductive substance 6 formed between them and the metal sheet 2 so as to pass the organic resin film 3, to the metal sheet 2 and to revealed parts on the metal sheet 2 around the element 1. Said other elements including the inner edge side of the lead frame 4 are sealed with an insulating organic resin 7.
Patent JP-H02125641-A (JP)
Title: Metal cap for semiconductor device
Inventor: MIZUNASHI HARUMI
IPC: H01L23/04
Filed: 1988-11-04
Abstract: PURPOSE:To increase the stiffness of a cap without deteriorating seam weldability by bonding a flat plate type metal thin plate to a flat part inside 1 throttle part of a cap formed by shallowly throttling the nearly central part of the metal thin plate. CONSTITUTION:A shallow throttle part 3 is formed in a cap 1 having a recessed part at the nearly central part of a rectangular or circular metal thin plate. The throttle part 3 has a position alignment function for a seal ring, and a buffering function to prevent mechanical stress caused by expansion and contraction of the material of the cap 1 due to temperature change from being directly applied to the seal ring. A reinforcement metal plate 2 is bonded to the inside of the throttle part of the cap 1, e.g., the flat part. Thereby, the rate of a current flowing in the cap 1 at the time of sealing does not increase, and the rigidity of the cap 1 can be increased without decreasing the sealing workability.
Patent JP-H09157773-A (JP)
Title: Aluminum composite material having low thermal expandability and high thermal conductivity and its production
Inventor: HAMAYOSHI SHIGEYUKI
IPC: H01L23/373
Filed: 1996-10-02
Abstract: PROBLEM TO BE SOLVED: To control a coefft. of thermal expansion and thermal conductivity to a desired level by specifying the porosity of a composite material having specific constitution to specific % or below. SOLUTION: The content of aluminum powder is preferably >=99%. The content of silicon carbide powder is preferably >=99%. A preform formed by press molding a powder mixture formed by adding, by volumetric %, 20 to 90% silicon carbide to 80 to 10% aluminum powder is put into molds. The preform is then heated at a temp. above the m. p. of the aluminum, by which the aluminum composite material having the low thermal expandability and the high thermal conductivity is obtd. The porosity of the composite material is then confined to <=10%. The powder mixture is subjected to pressure sintering at the temp. above the m. p. of the aluminum and under >=500kg/cm<2> pressure. As a result, the composite material is widely usable as the radiation plate of semiconductor materials.
Patent JP-H10107916-A (JP)
Title: Selective calling receiver with tone dialer function
Inventor: SAITO SHUNJI
IPC: H04W84/02
Filed: 1996-10-01
Abstract: PROBLEM TO BE SOLVED: To improve the operability by setting in advance the maximum digit number of a transmission messages decided by the system through a prescribed switch operation so as to eliminate trouble of calculating the number of digits of a message. SOLUTION: A carrying person of the receiver operates in advance an entry section 4 to set optionally the maximum number of transmission digits of a message depending on the system for the receiver and stores it to a storage section 5. When the digit number of messages inputted by the carrying person exceeds the preset number of maximum transmission digits, it is informed to the carrying person by a display section 6. Furthermore, in the case of sending a message whose maximum transmission digit number exceeds the preset maximum transmission digit number through the use of a tone dialer function, a control section 3 automatically divides the message into a plurality of blocks whose maximum transmission digit number is within the preset maximum transmission digit number.  The divided messages are sent sequentially while an end code and a head code are added to them automatically so that the respective divided messages are merged correctly at a receiver side and they are restored to the original message.
Patent JP-H01124624-A (JP)
Title: Compound of high-strength zirconia based filament
Inventor: YOSHII RYOJI
IPC: C04B35/48
Filed: 1987-11-05
Abstract: PURPOSE:To stably obtain the above fiber, having excellent strength and suitable as reinforcing fibers for metal, etc., by blending a zirconia sol containing a peptizer added thereto with polyvinyl alcohol within a specific range, spinning the resultant blend and calcining the obtained fiber. CONSTITUTION:(B) A peptizer (e.g., di-n-propylamine) in an amount of preferably >=0.2wt.% based on (A) a zirconia sol, having 50-500Angstrom  particle diameter and dispersed in water or an organic solvent is added thereto and (C) polyvinyl alcohol is then blended so as to provide 100/3-100/50 weight ratio of the components (A) to (C) to afford a spinning solution, which is subsequently spun by wet spinning, etc., and calcined in oxygen atmosphere to provide the aimed fiber.
Patent JP-S63259483-A (JP)
Title: Underground probe radar
Inventor: TAKARA SHOICHI
IPC: G01S13/06
Filed: 1986-11-25
Abstract: PURPOSE:To achieve a higher probing capacity, by arranging two transmitting antennas on both sides of a receiving antenna at an equal interval to drive transmitters connected individually to the transmitting antennas simultaneously. CONSTITUTION:Transmitting antennas 3a and 3b are arranged on both sides of a receiving antenna 5 at an equal interval to drive transmitters 2a and 2b simultaneously. Because of symmetry in the layout of antennas, reflected wave by a transmission pulse emitted from the antenna 3a is precisely the same as reflected wave from the antenna 3b in the waveform as received with the antenna 5. Thus, the simultaneous transmission produces amplitude twice as much as would be when one transmitting antenna is used as reception output of the antenna 5, thereby achieving a higher probing capacity.
Patent JP-H11119785-A (JP)
Title: Karaoke device
Inventor: MATSUMOTO SHUICHI
IPC: G10K15/04
Filed: 1997-10-14
Abstract: PROBLEM TO BE SOLVED: To actualize a playback function providing a KARAOKE singer with information by using a small memory capacity. SOLUTION: When a singing voice signal is inputted, a scoring part 3 scores the singing voice. A sound recording part 5 records the section of the highest points and the section of the lowest points in the music as a result of the scoring each for approximately 10 seconds. After the performance of the KARAOKE music ends, the highest-point section and lowest-point section recorded by the sound recording part 5 are outputted to an amplifier 6 and reproduced. Consequently, the most featured parts of the singing of the singer can be reproduced by recording the highest-point section and lowest-point section each for about 10 seconds to give the singer information for his practice.
Patent JP-H11121794-A (JP)
Title: Gallium phosphoarsenide epitaxial wafer and light emitting diode
Inventor: SATO TADASHIGE
IPC: H01L33/16
Filed: 1997-10-14
Abstract: PROBLEM TO BE SOLVED: To realize an LED having a very long life on a GaAsP epitaxial wafer, without great optical output reduction that causes a practical problem. SOLUTION: The Ga epitaxial wafer has an n-type GaAs1-x Px (0<=x<=1) epitaxial layer on an n-type single crystal substrate 10. This epitaxial layer has a low-concn. carrier region 13 having a thickness of 2 μm or more and carrier concn. of less than 6.5×10<17> cm<-3> and high-concn. carrier region 15 having a thickness of 3 μm or more and carrier concn. of 6.5×10<17> cm<-3> or more. This region 15 is adjacent to the region 13 at the single crystal substrate side.
Patent JP-S62139613-A (JP)
Inventor: NAGAO KEN
IPC: A47J36/16
Filed: 1985-12-12
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-H09121839-A (JP)
Title: Culture house
Inventor: TAMAOKI YUICHI
IPC: C12M3/00
Filed: 1995-10-27
Abstract: PROBLEM TO BE SOLVED: To provide a culture house free from any fear of water leakage, reduced in mold cost, excellent in mass productivity, and useful for culturing tissues or cells, so designed that plural liquid vessels independent of one another are placed outside an inner box constituting a culture chamber so as to enclose the inner box. SOLUTION: This culture house is so designed that plural liquid vessels 8, 9 in the form of plastic tanks made of e.g. polypropylene independent of one another are placed outside an inner box 6 constituting a culture chamber so as to enclose the inner box 6. It is preferable that the liquid vessels be mutually connected via pipe(s) 14.
Patent JP-2000097060-A (JP)
Title: Internal-combustion engine
Inventor: SAITO TETSUSHI
IPC: F16C3/28
Filed: 1998-09-16
Abstract: PROBLEM TO BE SOLVED: To establish a good run-through performance even on a road surface, etc., having surface unevenness. SOLUTION: A four-cycle engine 1 of internal combustion type includes a plurality of cylinders A and B, in which pistons 10a and 10b are installed and transmitted to crankshafts 12a and 12b through connecting rods 11a and 11b, wherein the crankshafts 12a and 12b are divided for each cylinder A and B and coupled together by a crank phase changing device 14 for changing the crank angle phase difference.
Patent JP-H0286877-A (JP)
Title: Cleaning device
Inventor: HOSHINO MITSURU
IPC: B08B3/08
Filed: 1988-11-07
Abstract: PURPOSE:To remarkably decrease the amount of cleaning solvent dissipated and to reduce cleaning cost by providing a heat exchanger through which a refrigerant is passed to the inside of the wall surface of a device vessel in contact with bath tanks. CONSTITUTION:When operation is stopped and heaters 3A, 3B are shut off, a refrigerant is supplied by means of a refrigerant feeder 5 into a heat exchanger 4, by which bath tanks 2A, 2C in contact with the heat exchanger 4 are rapidly cooled by means of the heat exchanger 4 and the generation ot the vapor of the solvent can be prevented. As a result, the amount of the solvent dissipated can be reduced.
Patent JP-H08148857-A (JP)
Title: Structure of cable connection for cabinet
Inventor: FUJIWARA MICHIHARU
IPC: H05K7/00
Filed: 1994-11-15
Abstract: PURPOSE: To improve cable connection work without allowing useless space. CONSTITUTION: In a cabinet 20 provided with a cable connector 10, the fitting attitude of the cable connector 10 with respect to the cabinet is made variable so that, in the case of the connecting work of corresponding cable connector, the fitting attitude of the cable connector 10 may be changed to secure the connection working space.
Patent JP-2001099006-A (JP)
Title: Acceleration device for carburetor
Inventor: NAKAZATO KENJI
IPC: F02M7/08
Filed: 1999-10-01
Abstract: PROBLEM TO BE SOLVED: To inexpensively provide an acceleration device for a carburetor which can supply acceleration fuel stably for a long time. SOLUTION: A cam lever 8 having a cam surface 8A is fixed to a throttle valve operation shaft 4A between a throttle lever 5 and an end 3A of a support boss 3. A first lever 10 is abutted against the cam surface 8A of the cam lever 8 by means of a first spring 12 energized in a first rotational direction A. A second lever 11 is abutted against a regulation part 10C of the first lever 10 by means of a second spring 13 energized in a second rotational direction B, and arranged on a pump rod 6H which pressurizes a pump diaphragm 7 of a pump device P in an abutting manner.  An abutting portion K of the first lever 10 against the cam surface 8A of the cam lever 8 is arranged between the throttle lever 5 and the end 3A of the support boss 3 in a longitudinally axial direction Y-Y of the valve operation shaft 4, and arranged in a projected surface of the throttle lever in a plane perpendicular to the longitudinal axis Y-Y of the throttle valve operation shaft 4.
Patent JP-H02255891-A (JP)
Title: Image tube
Inventor: SHIRAKAWA YASUHIRO
IPC: H01J29/20
Filed: 1987-11-09
Abstract: PURPOSE:To increase output, reduce deterioration of time-response even at the time of low illuminance and improve the after-image properties by using a specific phosphor on an output fluorescent surface. CONSTITUTION:An image tube 10 is produced by arranging a glass plate 11 on which a photoelectric surface 12 is formed and a fiber optics face plate 13 on which a fluorescent surface 14 using a phosphor of the given formula wherein x is such that 5X10<-3=x<=5X10<-1> gram atoms; and Ln is La, Gd or Y) and having an average particle diameter of 0.5-4.5mum is formed in such a manner that the photoelectric surface 12 is situated opposite to the fluorescent surface 14, airtight sealing them via supporting fitments 15, 16 and an insulating ring 17, and bringing the inner part to a high vacuum.
Patent JP-H0985895-A (JP)
Title: Light-weight moisture regulating panel
Inventor: MINAGAWA MITSUO
IPC: B32B18/00
Filed: 1995-09-25
Abstract: PROBLEM TO BE SOLVED: To obtain the heat insulation, fire-proofness and strength at a light- weight by forming foamed ceramic molding plates obtained by connecting ceramic fine hollow particles having a specific compression strength, bulk specific gravity and melting point by molten ceramics at front and rear surface materials, forming a core material in a honeycomb or corrugated structure filled with moisture regulating material. SOLUTION: Foamed ceramic molding plates 6 obtained by connecting the ceramic fine hollow particles having a compression strength of 600kgf/cm<2> or more, a bulk specific gravity of 0.3 to 0.5g/cm<3> and a melting point of 1500 deg.C or higher by the molten ceramics or pottery composition are used for the front and rear surface materials or front surface material of a light-weight moisture regulating panel 7, and a core material is formed in a honeycomb structure 1 or a corrugated structure. When the molding plate is used only for the front surface material, the rear surface material is formed of inorganic panel or woody panel. The particles are formed by foaming alumina, silica or other composition. The core material is formed of flame retarded Kraft sheet or/and non-combustible sheet, or the moisture regulating material is formed of inorganic material.
Patent JP-S62141806-A (JP)
Title: Nonlinear compensation system
Inventor: WATANABE TATSUO
IPC: H03F1/32
Filed: 1985-12-16
Abstract: PURPOSE:To control optionally the amplitude and the phase of a reverse distortion output by adding another distortion generator to a conventional distortion generator. CONSTITUTION:If distortion occurs in the output of a main amplifier 4 in accordance with the increase of an input signal 1, only the distortion component appears in the output of a subtracter circuit 15. Another distortion component from a distortion generator 23 is added to said distortion component, and the addition result is amplified by an amplifier 18 for distortion and is inputted to an adder circuit 19 as the reverse distortion component. The input signal of the distortion generator 23 is divided into two by a branching circuit 3a, and one is inputted to a nonlinear element 5 having the nonlinear characteristic. A no-distortion signal which passes a delay element 8 is subtracted from the output of the non-linear element 5 having distortion by a subtracter circuit 16, and only the distortion component is outputted to the output of the subtracter circuit 16. A variable attenuator 13 and a phase shifter 14 adjust the amplitude and the phase of the distortion component.
Patent JP-H03144018-A (JP)
Title: Corner decorative block
Inventor: SATO TOSHIAKI
IPC: E02D29/02
Filed: 1989-10-27
Abstract: PURPOSE:To facilitate the manufacture of a corner decorative block by embedding natural stones in one outer surface of each of triangular cross-sectional shape concrete blocks, and by forming a joint groove at the oblique side thereof so that the inclined surfaces of the concrete blocks are mated with each other while charging concrete into the grooves so as to fix them with each other. CONSTITUTION:A triangular die frame is set so that a decorative surface of a corner block 1 faces downward, and sand or small diameter stones are laid on the bottom thereof, and then decorative natural stones 3 are laid thereover. Then a foamed styrene member for forming a joint groove 4 is arranged n the inclined surface part 2 of the block 1, and concrete is placed in the die frame. After curing, by parting the die frame, the foamed styrene member is removed so as to form the joint groove 4. The inclined surface parts 2 of thus obtained two corner blocks 1 are mated with each other, and a reinforcing steel cage is inserted into the joint grooves 4. Then concrete is placed in the joint grooves 4. Thereby it is possible to build a ground retaining wall having two corner surfaces provided thereover with the decorative natural stones 3, at a low cost.
Patent JP-S63135012-A (JP)
Title: Radio receiver
Inventor: TAKEI YOSHIO
IPC: H03J5/00
Filed: 1986-11-26
Abstract: PURPOSE:To select a radio station by using an output signal of an attitude detector of a case as a channel selection signal so as to vary the attitude of the case in various ways. CONSTITUTION:The attitude detector 2 consists of a spherical shell 3 having a small hole 3a at a proper position, a cone sphere 4 provided in the spherical shell 3 and a microswitch 5 whose actuator 5a is arranged around the spherical shell 3 so as to be projected from the small hole 3a into the sphere 3, and when a face of the case 1 is placed on a table or the like, the cone sphere 4 is moved by the gravity to push down only the actuator 5a of the microswitch 5 corresponding to the face of the case 1 and a contact 5b of the microswitch 5 is closed. The output signal of the attitude detector 2 is used as the channel selection signal. Since the attitude of the case is changed depending on the radio station desired to be received, the user can observe the design applied to each face independently of the front or rear face.
Patent JP-H05120671-A (JP)
Title: Magnetic recording medium
Inventor: SHIBUTA RYUICHI
IPC: C09D5/23
Filed: 1991-10-28
Abstract: PURPOSE:To improve the durability and friction characteristics of a magnetic recording medium forming a magnetic recording layer on a nonmagnetic base material. CONSTITUTION:Fine particles having <=2.5 sp. gr. and 0.1 to 2mum average particle size are incorporated into the magnetic recording layer. Since the specific gravity of the fine particles to be incorporated into the magnetic recording layer is as small as <=2.5 as compared with abrasive materials used heretofore consisting of Al2O3 (3.99 sp. gr.), Cr2O3 (5.21 sp. gr.) and Fe2O3 (5.1 sp. gr.), the volumetric ratio thereof is larger than heretofore when the same mass is incorporated into the magnetic recording layer. The number of projections on the surface of the magnetic recording layer can, therefore, be increased. Even more, the average particle size is as small as 0.1 to 2mum, therefore, the formation of coarse projections is prevented and the degradation in the output by the coarse projections and the degradation in electromagnetic conversion characteristics, such as deterioration in S/N, are suppressed. The many microprojections are formed on the surface of the magnetic recording layer by the fine particles of the relatively small sp. gr. and average particle size. Thus, the durability and friction characteristic of the magnetic recording medium are greatly improved.
Patent JP-H02129475-A (JP)
Title: Pressure regulating valve
Inventor: SUZUKI AKIRA
IPC: F16K31/06
Filed: 1988-11-09
Abstract: PURPOSE:To aim at simplification in structure by installing a first stopper, regulating the moving range of a sleeve being made up of caulking a core end, and also a second stopper regulating the moving range of a bearing cage. CONSTITUTION:A pressure regulating valve 100 makes a spool valve 105 slide in a valve sleeve 104 with those of supply, output and exhaust ports 121-123 with an electric signal for an electromagnet part 103, thereby regulating supply pressure. Here a core 181 and a ball 191 in the electromagnet part 103 are held by a bearing cage 190, and the moving range of a sleeve 185 being loosely fitted in space between an outer circumference of the bearing cage 190 and an inner circumference of the core 181 is regulated by a first stopper 187 made up of caulking a core end, and then the moving range of the bearing cage 190 is regulated by second stoppers 141, 189. Thus, a core form is simplified so that these stoppers are obtained with a simple structure.
Patent JP-H04160095-A (JP)
Title: Method for growing compound semiconductor single crystal
Inventor: YOSHIDA KIYOTERU
IPC: H01L21/208
Filed: 1990-10-19
Abstract: PURPOSE:To stably maintain a crystal shape and to improve a yield by using a crucible having a specific bore and setting lower the temp. distribution in the diametral direction of the melt under crystal growth nearer the central part of the melt in pulling up by an LEC method of a flat top system. CONSTITUTION:A hot zone 2 is disposed in a high-pressure chamber 1 and the crucible 4 for pulling up the single crystal is disposed therein. Such crucible 4 which has D-d=5 to 15mm when the bore of the crucible 4 is designated as Dmm and the outside diameter of the single crystal 13 to be pulled up as dmm. Raw materials 9 are put into the crucible 4 and are heated to form a melt 9'. The compd. semiconductor single crystal 13 is grown by the liquid sealing pulling up system of the flat top system. The crystal 13 is pulled up while the temp. distribution in the diametral direction of the melt 9' under the growth of the crystal 13 is set lower so as to be nearer the central part of the melt 9' at this time. The diameter in the straight cylindrical part of particularly the single crystal 13 to be pulled up is controlled to a specified diameter in this way.