baber/WOPTO huggingface dataset:
Patent JP-2000216639-A (JP)
Title: Feedforward amplifier and method for amplifying signal
Inventor: ZIESSE NORMAN G
IPC: H03F1/32
Filed: 1999-10-29
Abstract: PROBLEM TO BE SOLVED: To provide a feedforward amplifier with a high efficiency and a wide operating bandwidth at a low cost. SOLUTION: The feedforward amplifier 40A hag a splitter 42 that receives an input signal, an amplitude adjustment device 44, a phase adjustment device 46, a main amplifier 50, a voltage controlled equalizer 48 that compensates its frequency characteristic of the amplifier 50 in advance, a directional coupler 52, a sbutractor 56, a 1st delay unit 54 connected to the splitter 42, a cancellation detector 70 connected to the sbutractor 56, and an equalizer controller 72 that controls the voltage controlled equalizer 48, and also an amplitude adjustment device 58 connected to the sbutractor 56, a phase adjustment device 60, a fixed equalizer 62, a correction amplifier 64, a combiner 66 connected to a delay unit 68 and a correction amplifier 64, a pilot signal detector 69 and the 2nd delay unit 68 connected to a pilot signal detector 69 and the coupler 52. The fixed equalizer 62 is an equalizer for frequency response for a broad band circuit.
Patent JP-H08146492-A (JP)
Title: Compact camera provided with automatic focusing function
Inventor: ICHIKAWA YUICHI
IPC: G03B13/02
Filed: 1994-11-16
Abstract: PURPOSE: To match the range-finding region mark of a finder optical system with a range-finding region in a focusing position detecting part by disposing an eyepiece system on the first optical axis of a luminous flux divided with a half mirror and a focusing position detecting means on the second optical axis. CONSTITUTION: The half mirror 17 dividing an incident luminous flux M into two directions is disposed between the objective lens system 6 of the finder optical system 3 and the eyepiece system 7, it is disposed on the first optical axis S1 of the divided luminous flux M1 and the focusing position detecting part 4 is disposed on the second optical axis S2 of the divided luminous flux M2 as well.  As the luminous flux M2 made incident on the CCDs 15a and 15b of the focusing position detecting part 4, the luminous flux M made incident on the objective lens system 6 of the finder optical system 3 is used, so that a focus mark displayed on the focusing plate 12 of the eyepiece system 7 and the range-finding regions of the CCDs 15a and 15b of the focusing position detecting part 4 accurately correspond without a deviation and the range- finding region visually recognized by a photographer in a finder visual field is coincident with an actual range-finding region.
Patent JP-H08145933-A (JP)
Title: Gas sensor element and its production method
Inventor: KANAMORI MASAAKI
IPC: G01N27/12
Filed: 1994-11-17
Abstract: PURPOSE: To provide a high gas sensitivity gas sensor element formed on a base as a tinoxide thin film which is made with a sol-gel method. CONSTITUTION: A gas sensor element is formed on a base as a tinoxide thin film made by a sol-gel method in which the carrier concentration at the sensor operation temperature is in the order of 10<17> /cm<3> or less and the resistivity is 3×10<-1> Ω.cm or more. The gas sensor element of this kind is produced by applying stuff sol liquid made of organic solvent solution of tin tetra lower alkoxide (and tri-ethanolamine) on a base, drying and sintering in the sintering temperature ca. 350 to 550 deg.C and forming it on the base.
Patent JP-H03169560-A (JP)
Title: Printer device
Inventor: OANA REIKO
IPC: B41J2/165
Filed: 1989-11-28
Abstract: PURPOSE:To obtain an ink jet printer which is available always in a normal state by a method wherein when a power supply interruption detection means detects the interruption of a power supply and a nozzle capping detection means detects the uncapped state of a nozzle, a warning is issued by a warning means using an energy stored in a condensing means. CONSTITUTION:If a power supply is cut by an instantaneous service interruption or other causes, a voltage supplied from a direct current stabilizing power source circuit 2 is gradually lowered. A power supply interruption detection circuit 3 identifies that the voltage is lowered to a predetermined voltage or below and outputs a power supply interruption identifying signal S1. Whether an ink nozzle is presently capped is judged by a nozzle capping detection switch 4. If it is not capped, a nozzle cap state signal S2 is outputted. If a power source voltage is the predetermined voltage or below and the ink nozzle is uncapped, i.e., a power supply interruption identifying signal S1 and a nozzle cap state signal S2 are both issued, the AND of the S1 and the S2 results in a warning issuance signal SA being outputted. In this case, a condensing circuit 6 supplies a power to a generating circuit 7 to sound a buzzer 8 using the energy of the power.
Patent JP-2001126321-A (JP)
Title: Stamper for optical disk, its manufacturing method and optical disk substrate produced by using stamper for optical disk
Inventor: HAYASHI KAZUHIDE
IPC: G11B7/26
Filed: 1999-10-29
Abstract: PROBLEM TO BE SOLVED: To enhance durability for the load applied on a molding process in a stamper for an optical disk having the recessed and projecting part narrower than 0.24 μm on a signal surface. SOLUTION: On the signal surface 10 of the stamper 11 for an optical disk made of nickel, pits 12 which have a width w at the root of 0.24 μm and a height d of 20-100 nm are spirally arranged. As Vickers hardness on the signal surface 10 is <=450 Hv, the brittleness is low. The pits 12, therefore, are not broken by the load applied when the substrates are molded and the substrates which produce excellent reproduced signals can be continuously and stably manufactured.
Patent JP-H03168136-A (JP)
Title: Optical probe
Inventor: YUTSU TAKAYOSHI
IPC: A61B18/20
Filed: 1989-11-27
Abstract: PURPOSE:To achieve an accurate recognition of an irradiation range of light emitted by providing a guide ring at the emission tip of a optical probe. CONSTITUTION:Far infrared fiber 1 admits and leads a laser light at one incoming end and emits it at the other outgoing end. A cylindrical outgoing end chip 2 surrounds the outgoing end of the far infrared fiber 1. An interval is provided between the outgoing end chip 2 and the outgoing end so that an assist gas 3 can flow out to prevent the adhering of impurities flying during the cooling and working of the outgoing end of the far infrared fiber 1 and during a treatment. A luminous flux 9 of a laser light which is emitted from the far infrared fiber 1 passes inside a ring 7 the closest to an object to be irradiated of a guide ring 6 comprising a flexible ring-shaped metal spring material mounted at the tip of the outgoing end chip 2. After the guide ring 7 is brought into contact with the object 8 to be irradiated such as organism, the laser is emitted thereby enabling clear judgment of an irradiation range.
Patent JP-H03171509-A (JP)
Title: Dielectric porcelain composite for high frequency
Inventor: MATSUMOTO HIROYUKI
IPC: C01G33/00
Filed: 1989-11-28
Abstract: PURPOSE:To realize a porcelain composite having high specific dielectric constant and Q-valve by composing specific elements to the prescribed ratio. CONSTITUTION:When the subject composite is to be expressed by Ba(SnxZnyNbz)vOw (provided that x+y+z=1, w is optional), (x, y, z) is to be in the region of the mole ratio to be encircled four points A:(0.05, 0.32, 0.63), B:(0.05, 0.28, 0.67), C:(0.35, 0.18, 0.47), D:(0.35, 0.22, 0.43), where 1.00<=v<=1.02.
Patent JP-H02154276-A (JP)
Title: Electrophotographic color toner
Inventor: YUSHINA HEIHACHI
IPC: G03G9/09
Filed: 1988-12-06
Abstract: PURPOSE:To enhance spectral reflection characteristics and electrostatic chargeability by incorporating a specified anthraquinone derivative as a colorant. CONSTITUTION:The color toner contains as the colorant one of the anthraquinone derivatives represented by formula I in which R is H or lower alkyl and X is halogen. These compounds can be used as the main component of a magenta toner, and in the case of other color toners, they can be added to improve their colors. It is possible to use quaternary ammonium salts, basic and electron-donative organic substances as a positive charge controller not causing problems in color reproduction, and metal chelates, metal-containing dyes, acidic or electron-attractive organic substances, and the like as a negative charge controller not causing such problems for electrostatic charge control, when it is necessary, thus permitting spectral reflection characteristics and electrostatic chargeability to be enhanced.
Patent JP-H11142872-A (JP)
Title: Liquid crystal display device
Inventor: TAKAHASHI TOMOYUKI
IPC: G02F1/1345
Filed: 1997-11-11
Abstract: PROBLEM TO BE SOLVED: To provide a liquid crystal display device capable of reducing the number of parts, simplifying processes and surely fixing a frame and a printed circuit board and having automatizable fixed structure. SOLUTION: In the case of fixing a liquid crystal panel PNL constituted of holding a liquid crystal layer between a pair of opposed transparent substrateds SUB1, SUB2 at least one of which has a pixel selecting electrode, a pair of polarizing plates POL1, POL2 arranged through the panel PNL, a printed circuit board PCP3 fitted to the peripheral edge of the panel PNL, connected to the electrode of the panel PNL through a tape carrier pad TCP3 and loading electronic parts for impressing various signal voltages for display, and a back light arranged on the back of the panel PNL by the use of a frame SHD, the electronic parts EP loaded on the board PCB3 is provided with a spacer function for filling a gap between the frame SHD and the board PCB3 and fixing them.
Patent JP-H06161578-A (JP)
Title: Constant current device
Inventor: UENO YUJI
IPC: G05F3/18
Filed: 1992-11-18
Abstract: PURPOSE:To provide the constant current device which controls the gate voltage of the MOS transistor of an output part with an output current and reduces the temperature dependency of the output current. CONSTITUTION:This device is provided with circuit formation for controlling the gate voltage of an N channel MOS transistor 11 of the output part corresponding to the output current of the N channel MOS transistor 11 of the output part, potential generated by a constant resistor 15, NPN transistors 13 and 14, N channel MOS transistor 12, Zener diode 1B, and constant resistors 16 and 17.
Patent JP-H03173169-A (JP)
Title: Monolythic vertical semiconx ductor power device provided with protection from parasitic current
Inventor: FERLA GIUSEPPE
IPC: H01L21/822
Filed: 1990-11-16
Abstract: PURPOSE: To stabilize the operational characteristics by entirely covering the projecting end of an insulating pocket with a first grounded metallization part. CONSTITUTION: In order to overcome voltage rise at an insulation pocket P caused by the presence of a parasitic transistor, projecting end of the insulating pocket is covered entirely with a metallization part 21, e.g. a metal polysilicide, preferably a platinum layer. It has a resistance of about 1Ω/square which is about 100 times as low as that of the insulation pocket P. Some region of the insulation pocket Preaches a grounded metal track of aluminum and comes into contact therewith. Since the leakage current of parasitic transistors T3, T4 is passed through a low resistance path and grounded, it causes no voltage rise at the insulation pocket P.
Patent JP-H06158252-A (JP)
Title: High formability molybdenum plate and manufacture thereof and reflecting sheet
Inventor: TOMOKIYO KENJI
IPC: C22F1/18
Filed: 1992-11-18
Abstract: PURPOSE:To manufacture a high formability molybdenum plate having a little development of crack in deep drawing work by executing intermediate annealing, cold rolling and finish annealing treatments to a molybdenum blank hot rolled in the specific condition. CONSTITUTION:The intermediate annealing treatment is executed to the hot- rolled molybdenum blank at 1050-1150 deg.C to make a primary rolled plate, and after executing recrystallization heat treatment, the cold rolling is executed at 80-95% rolling ratio and the secondary rolled sheet having the finish aimed thickness is prepared. Successively, by executing the finish annealing to this secondary rolled sheet at 980-1030 deg.C, X-ray diffraction strength in the (222) crystal surface paralleled to the sheet surface is made to be >=0.3 times of the X-ray diffraction strength in the (200) crystal surface, or the X-ray diffraction strength in the (200) crystal surface is made to be <=10 times of the X-ray diffraction strength in the (200) crystal surface in non-oriented molybdenum. By this method, the high formability molybdenum sheet having excellent secondary workability and a little development of the crack in the case of executing the deep drawing by pressing working is obtd.
Patent JP-H11143902-A (JP)
Title: Similar document retrieval method using n-gram
Inventor: MATSUBAYASHI TADATAKA
IPC: G06F17/30
Filed: 1997-11-11
Abstract: PROBLEM TO BE SOLVED: To provide a similar document retrieval system which can retrieve even for such languages as the Japanese have many character types at a high speed and with high accuracy. SOLUTION: This system is provided with a step where the appearance frequency of a feature character string existing in a text 103 contained in a text data base is stored as an appearance frequency file 104, a step where the feature character string is extracted from the text that is designated by a user and a step where the appearance frequency of the feature character string is counted in the text designated by the user. Then, a similarity is calculated to the text designated by the user by using the appearance frequency stored in the file 104 and in the text designated by the user. Thus, the similar documents are retrieved by using the calculated similarity.
Patent JP-H10150244-A (JP)
Title: Method of simulating semiconductor device
Inventor: YOSHIDA YASUAKI
IPC: G06F17/50
Filed: 1996-11-20
Abstract: PROBLEM TO BE SOLVED: To extract automatically a mode, in which the luminous intensity distribution becomes the same one as the light distribution in a real device, without adding the condition of a special decision by a method wherein when the initial value of a two-dimensional luminous intensity distribution is calculated, the virtual absorption coefficient, which is found on the basis of the refractive index of a clad layer, the refractive index of a light absorption layer and the wavelength of light, of the light absorption layer is utilized. SOLUTION: The initial value (virtual value) αm of the absorption coefficient αblock of an N-type blocking layer 5 is calculated by the formula I (The (n1 ) is the refractive index of a clad layer 1, the (n2 ) is the refractive index of a light absorption layer and the (λ) is the wavelength of light.). In a real device, the relation of the αblock to αGa As is αblock =αGa As .  Then, the propagation coefficient β of the formulas II and III (The E is a luminous intensity distribution, the (k) is the wave number 2π/λ of light of a wavelength (λ) in a vacuum, the is an operator, the (n) is a complex refractive index, which depends upon a material constant and a carrier concentration, and the β is a complex propagation constant.), which are a wave equation, are calculated by the formula IV (The nr is the rear part of a refractive index, the (i) is a complex number and the (α3 ) is an absorption coefficient in a progressing direction.). At this time, the luminous intensity distribution E is found in order by an approximate method until the largest one of the real part of the coefficient β reaches the αblock =αGa As as the initial value of an answer to the luminous intensity distribution.
Patent JP-2001127264-A (JP)
Title: Ferroelectrics capacitor, manufacturing method therefor, and ferroelectrics memory
Inventor: HIDAKA OSAMU
IPC: H01L21/8242
Filed: 1999-10-29
Abstract: PROBLEM TO BE SOLVED: To provide a ferroelectrics capacitor wherein the electrode of a wiring layer formed on the ferroelectrics capacitor is prevented from being oxidized, as well as its manufacturing method and a ferroelectrics memory. SOLUTION: A buffer layer comprising a metal element which is lower in a specific resistance of oxide and, easier to be oxidized than a contact layer or wiring layer is provided, so that the oxygen dissociated from an ferroelectric oxide and a contact layer contacting it is surely adsorbed, and a barrier layer of metal wiring is assuredly prevented from being oxidized. As a result, rising of an electrode resistance or defective contact is settled. Even with an iridium electrode which is easy to release oxygen, a contact resistance is lowered with a contact yield significantly improved, and further, a repeated writing/reading characteristics is excellent as a ferroelectrics memory.
Patent JP-H08166045-A (JP)
Title: Belt welding device
Inventor: MORI KYOICHI
IPC: F16G3/16
Filed: 1994-12-13
Abstract: PURPOSE: To provide a belt welding device for welding a belt accurately without risk of being burned. CONSTITUTION: A belt welding device comprises two fixing blocks 3, 3 on which a V shaped groove 2 is mounted to which the belt is fixed, a movable table 5 at both sides of a top face of which traverse rails 4, 4 are mounted, two pressure mechanisms 6, 6 for pressing and fixing the belt to the fixing blocks 3, 3, longitudinal rails 8, 8 placed at both top face sides of a front part of a base 7 and a heat plate 10 placed such that it extends horizontally toward the fixing blocks 3, 3 from a housing 9 arranged on a back part of the base 7.
Patent JP-H01152535-A (JP)
Title: Method and device for managing program
Inventor: ISHIKAWA SHUICHI
IPC: G06F11/28
Filed: 1987-12-09
Abstract: PURPOSE:To increase saving of a list and developing efficiency by inserting CRT indicating control information when a source program is displayed in a CRT display device and displaying the program to the CRT display device. CONSTITUTION:When a source program 3a and a CRT indicating control signal 3b stored in a disk file 3 are outputted to a CRT display device 4, an instruction key EDS is inputted by a keyboard 5. Then, a program EDS7 program is started, and the program program 3a and the information 3b are read out respec tively to a memory 2 through a processor 1. After that, it is edited based on a row number, for instance, on the memory 2 and outputted to the device 4. As the result, of the output, a sentence writing the discriminating mark of a checking mark and so on is different from other sentences in an indicating brightness and can be discriminated precisely. Thus, checking mark information can be displayed in altogether, and saving of a list and developing efficiency can be increased.
Patent JP-H08143823-A (JP)
Title: 2-cyanoacrylate-based instantaneous adhesive
Inventor: HARUTAKE MASAMITSU
IPC: C09J4/04
Filed: 1994-11-18
Abstract: PURPOSE: To obtain the subject adhesive formulated with an NBR-based polymer, suppressed in its setting time delay, having a moderately raised viscosity, capable of exhibiting markedly high peel strength and heat-resistant tensile/shear strength in bonding, and also excellent in preservability. CONSTITUTION: This adhesive is a copolymer obtained by formulating (A) 2- cyanoacrylate with (B) a low-metal NBR-based copolymer with the ash content of <=500ppm and the total of Na and K ion contents of <=30ppm, a copolymer made up of (b1) 15-50wt.% of acrylonitrile unit, (b2) 40-85wt.% of butadiene and/or isoprene unit, (b3) 0-10 (esp. 0.5-10)mol% of a carboxyl-bearing monomer, and (b4) 0-30wt.% of a monomer component copolymerizable with other above monomers.
Patent JP-H0771932-A (JP)
Title: Soldering inspection device
Inventor: UCHIYAMA HIROMITSU
IPC: G01N21/956
Filed: 1993-12-10
Abstract: PURPOSE:To provide a soldering inspection device which enables the criterion for checking soldering to be adjusted automatically and easily while a production line is being operated. CONSTITUTION:In the case of a missing failure, missing-failure information showing the soldered portion missed and the kind of the soldering failure of that portion is inputted by a touch panel 10, a touch pen 11 and an abnormality content input device 12, and in the case of an over-checking failure, over- checking information showing the soldered portion where the over-checking failure has occurred is inputted by the touch panel 10 and the touch pen 11. The criterion for the kind of the soldering failure of the soldering portion missed is automatically adjusted according to the input information by an automatic criterion adjusting portion 13 to such an extent that the possibility of causing a missing failure is completely eliminated, and that over-checking failures occur at a predetermined low rate.
Patent JP-2000136595-A (JP)
Title: Ceramic panel structure and manufacture thereof
Inventor: TANAKA YOSHIHARU
IPC: E04C2/38
Filed: 1998-10-30
Abstract: PROBLEM TO BE SOLVED: To easily manufacture a panel while providing the panel with high rigidity by providing light iron backing members on the inner surface side, and forming ribs made of ceramic material, with the light iron backing members as a form. SOLUTION: In a concrete exterior wall panel 1, light iron backing members 3, 3, 4, 4, 5,... formed of channel members are provided in the inner surface side plane of the panel 1, and ribs 6, 6 formed of the same material as a panel plate part 2 of specified height formed with the light iron backing members as an inner form are provided outside of the light iron backing members 3, 3 longitudinally provided along both lateral edge parts in the inner surface side plane of the panel 1. The light iron backing members 4, 4 are provided extending vertically parallel at a specified space at the lateral center part in the inner surface side plane of the panel 1, and a rib 7 formed of the same material as the panel plate part 2 of specified height formed with these light iron backing members 4, 4 as a form is provided between the light iron backing members 4, 4. These light iron backing members function as a form for forming the ribs 6, 6, 7.
Patent JP-H07161581-A (JP)
Title: Hermetic type through capacitor and its manufacturing
Inventor: YAMADA TATSUYUKI
IPC: H01G4/35
Filed: 1993-12-10
Abstract: PURPOSE:To provide a large capacity hermetic type through capacitor with a reliable sealing performance at higher contents of dielectric material in a glass material. CONSTITUTION:A recessed part 12 is formed around a hole 11 of a conductive chassis 10 and a terminal 15 is provided with a cup part 16. A dielectric/glass paste 21 is placed in the recess 12 and inserting a terminal 15 through the hole 11, the cup part 16 is inserted into the recess 12. Temporarily the glass paste 21 is dried, the chassis 10 is turned over and a dielectric/glass paste 22 is placed in the hole 11. After being temporarily dried, the paste 21 and 22 are baked.