baber/WOPTO huggingface dataset:
Patent JP-2001006177-A (JP)
Title: Information recording apparatus and method, information recording medium, and information reproducing apparatus and method
Inventor: HORIGOME TOSHIHIRO
IPC: G11B20/10
Filed: 1999-06-23
Abstract: PROBLEM TO BE SOLVED: To effectively avoid a bit error due to cross-talk through application to, for example, an optical disk apparatus and an optical disk, relating to an information recording apparatus, an information recording method, an information recording medium, an information reproducing apparatus, and an information reproducing method. SOLUTION: Modulation reference signals SC1 to SC6 are generated so that between adjacent laser beam scanning traces, the modulation reference signals SC3 and SC5 to be used for modulation become substantially orthogonal to each other and the modulation reference signals SC4 and SC6 to be used for modulation become substantially orthogonal to each other. Thus, between the adjacent laser beam scanning traces, by generating the modulation reference signals so as to be in a substantially orthogonal relationship, a bit error due to cross-talk can be effectively avoided.
Patent JP-S6070050-A (JP)
Title: Preparation of powder of crab
Inventor: SHIMIZU IWAO
IPC: A23L17/40
Filed: 1983-09-26
Abstract: PURPOSE:To prepare powder of crab useful as various processed foods and a food additive, having flavor and fragrance of crab of its own, by sterilizing crabs by boiling and steaming, drying them, and pulverizing. CONSTITUTION:The whole landed crabs are boiled, sterilized primarily, washed with water, and the crabs are put in a refrigerator, preserved in the refrigerator at -5--15 deg.C. Carapaces and gills of crabs are removed, the crabs are washed with water, sprayed with steam at about 90-100 deg.C for about 15-20min, sterilized secondarily, immediately dried, and pulverized.
Patent JP-H0843663-A (JP)
Title: Dispersion shift optical fiber and its production
Inventor: OGINO TAKESHI
IPC: G02B6/00
Filed: 1994-07-28
Abstract: PURPOSE:To provide a dispersion shift optical fiber with which easy reduction of a cut-off wavelength (lambdac) is possible and an increase in the bending loss characteristic by an increase in a mode field(MFD) is prevented even if this lambdac is reduced and a process for producing a porous glass base material for this dispersion shift optical fiber. CONSTITUTION:This porous glass base material for the dispersion shift optical fiber has a max. part of referactive index in a first core part and the radius a1 on its outer side and the radius a0 of the bore are 0<a1-a0<a1/100. The base material has a referactive index distribution in which the max. refractive index difference n0 of the max. value is n0>n1. This process for producing such porous glass base material comprises supplying dopants to a burner for the first core part and a burner for the second core part, heating the outer peripheral part of the first core part of the porous glass base material to be formed and providing this part with the max. part of the referactive index.
Patent JP-S6068640-A (JP)
Title: Semiconductor device
Inventor: MURAKAMI HAJIME
IPC: H01L23/50
Filed: 1984-08-27
Abstract: PURPOSE:To enable to reduce the mounting area without increasing the mounting height by repeating leads extending from an enclosure at the root of the enclosure, and extending the end along the periphery of the enclosure. CONSTITUTION:A plurality of leads 17 extended from both sides of a molded portion 13 are folded from the root of the portion 13 to the stepped side, and connected to a wiring layer 20 of a printed board 19 at the folded portion 18. Accordingly, a mounting width L is narrowed. In this case, the same mounting height as that of the conventional one can be maintained by contacting the upper surface of the high portion of the molded portion 13 with the surface 19 of the printed board. Since the mounting area can be reduced without increasing the mounting height in this manner, various units and apparatus associated with a semiconductor device can be reduced.
Patent JP-H0464258-A (JP)
Title: Manufacture of lead frame
Inventor: UEDA RYUJI
IPC: C23F1/00
Filed: 1990-07-04
Abstract: PURPOSE:To apply such etching processing that processing limit pitches are made small, by etching the material, which has specific composition, with a specified perforated pattern from above and below. CONSTITUTION:In the material 150mum in overall thickness, where with a copper layer 4 as a middle layer iron-nickel alloy layers 2 of the same thickness and 42% in nickel content are stacked above and below, the thickness of said copper layer 9 shall be 60-80mum, and the material is etched with a specified perforated pattern from above and below. Thus, the copper layer to become the center layer of the material 150mum thick is 60-80mum, and etching is applied to this material, and by the condition of etching progress of the alloy layer at the specified time in etching and the condition of etching progress of the copper layer after it surfaces, the layer boundary at the etching end face and t he lead become proper shapes, and the pitch can be reduced.
Patent JP-H0340210-A (JP)
Title: Magnetic head driving device
Inventor: KANEKAWA HIROSHI
IPC: H02K33/18
Filed: 1989-07-06
Abstract: PURPOSE:To improve linearity by turning an internal yoke member, which is composed of triangle pole-shaped upper and lower permanent magnets pivotally supported to an outer peripheral yoke and of yoke, at the time of recording, pressing and fixing a bobbin, which is externally fitted to the internal yoke member, to be freely moved vertically with the corner of the triangle pole shape. CONSTITUTION:A bobbin 41, a coil 42 and a magnetic head 16 are integrally and vertically execute parallel linear motion and fixed to a constant position while maintaining a current constant. At the time of recording, a moving iron core 45 turns an external member 40 in one direction by turning on the current to the coil 44. When the current is turned off, the external member 40 is returned to an original position by a spring 46 and a cylindrical member 39 is turned. Accordingly, at the time of recording, permanent magnets 36 and 38, which are fixed to the cylindrical member 39, and a triangle pole-shaped yoke 37 are turned and the bobbin 41 is pressed by the corner and fixed. Then, the magnetic head 16 can be fixed in the constant position. Thus, vertical vibration caused by external disturbance, etc., is prevented and a recording track can be acquired with the satisfactory linearity.
Patent JP-H1127180-A (JP)
Title: Receiver and reception method
Inventor: YAMAMOTO KATSUYA
IPC: H04W52/02
Filed: 1997-07-02
Abstract: PROBLEM TO BE SOLVED: To attain sure re-synchronization and intermittent reception by setting spread spectrum signal timing detection accuracy with an intermittent reception period so as to compensate an accuracy error of a mobile station oscillator even when an intermittent reception period is extended and accumulated errors of the oscillation is disadvantageous of the establishment of synchronization. SOLUTION: A mobile station control section 20 discriminates an executing intermittent period as an intermittent reception and sets timing detection accuracy by selecting variably a window being a partial search range for re- acquisition of a code division multiplex system at intermittent reception by a timing detector 17 based on the intermittent period to allow the timing detector 17 to surely detect a pilot signal. That is, as a longer period is set for the intermittent period, the search range as the window is extended more to improve the detection accuracy. Thus, the pilot signal is surely detected even in the case of intermittent operation for a long period where accumulated oscillator errors are increased.
Patent JP-S5965853-A (JP)
Title: Manufacture of photoconductive thin film
Inventor: HARADA YOUICHI
IPC: C23C14/06
Filed: 1982-10-07
Abstract: PURPOSE:To obtain a photoconductive thin film having uniform photoconductive characteristics by exposing a vapor-deposited thin film of a solubilized and sintered body of a mixture of cadmium sulfide with cadmium selenide and copper salt to vapor of cadmium chloride. CONSTITUTION:Cadmium sulfide is mixed with cadmium selenide and a little copper salt so as to make the amount of cadmium selenide to 10-90mol% of the total amount and the amount of copper salt 0.01-2mol%. The powdered mixture is heated at 700-1,000 deg.C in a neutral atmosphere or air to form a solubilized and sintered body. The sintered body is optionally pulverized, and using the body as an evaporating source, vapor deposition is carried out in vacuum to form a thin film on a substrate. The thin film is activated by exposure to vapor of cadmium chloride at 500-600 deg.C for 10-60min. Said pulverized powder may be press-molded to a suitable shape or further sintered by heating at 800-900 deg.C in a neutral atmosphere.
Patent JP-S5879892-A (JP)
Inventor: TOUNAI HIROMASA
IPC: C05F7/00
Filed: 1981-11-04
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-S63203237-A (JP)
Inventor: GOBER NORBERT
IPC: F16C3/28
Filed: 1987-07-17
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-H04372686-A (JP)
Title: Manufacture of expanded graphite sheet
Inventor: KUSUYAMA HISAMI
IPC: C09K3/10
Filed: 1991-06-21
Abstract: PURPOSE:To manufacture an expended graphite sheet having general characteristics required and excellent particularly in heat and oil resistances. CONSTITUTION:A suspension is formed from graphite particles (A) obtained by compressing a graphite expanded at least fifty-fold on average so that it has a bulk density of 0.02-0.3g/cm<3> and then grinding it, a binder (B) comprising fibrillar fibers having a specific surface of 10-30m<2>/g, formed from pulpy meta- oriented aramid fibers, and water (C), thus giving a slurry for forming a sheet. A sheet is wet formed from this slurry.
Patent JP-S5969596-A (JP)
Inventor: YUMOTO HIDEAKI
IPC: F16T1/22
Filed: 1982-10-08
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-H0469200-A (JP)
Title: Cutting machine for styrene foam and the like
Inventor: TAKADA KOJI
IPC: B26F3/12
Filed: 1990-07-05
Abstract: PURPOSE:To increase a cutting speed while avoiding a heating wire being cooled by air and cut, by blowing out air along the heating wire to at least one part of a 1st holding member and 2nd holding member. CONSTITUTION:A nichrome wire 102 is heated with current being fed via heating weire guides 82, 107. At cutting time, the nichrome wire 102 is cooled with air being blown out of air blowout devices 198, 224 respectively. Namely, simultaneously with the start of the current feeding to the nichrome wire 102, exciting currents are fed to the solenoid 196 of a solenoid valve 180 and the of the solenoid valve at an air blowout device 224 respectively and air is blown out of air blowout devices 198, 224. Consequently, the cutting of a noncut part which is not brought into contact with the styrene foam of the nichrome wire 102 being cut while under working, is prevented even in case of the cutting speed being increased with the voltage of the nichrome wire 102 being increased.
Patent JP-H0467783-A (JP)
Title: Driver of piezo-actuator
Inventor: TAKAAI KAZUO
IPC: B60G17/015
Filed: 1990-07-05
Abstract: PURPOSE:To prevent the destruction of a switching element due to the sudden increase of primary side coil current by preventing the magnetic saturation of a flyback transformer through providing a duty-changing means for changing the pulse duty of a charging pulse signal according to the voltage across the ends of a piezoactuator. CONSTITUTION:A control circuit 1 outputs a charging pulse signal 1a to a driving circuit 2. At the time of ON of the charging pulse signal 1a, FET22 is conducted and a current iA flows through the primary side coil 211 of a flyback transformer 21. When the charging pulse signal 1a is OFF, a high- voltage counter electromotive force is generated in a secondary side coil 212 and a coil current iB flows through a diode 25 so that a piezo-actuator 31 is charged with electricity. In this case, when the pulse duty of the charging pulse signal 1a is large, the FET 22 is conducted before the secondary side coil current iB disappears and the primary side coil current iA flows while having an initial. offset, which grows gradually and finally becomes a high current by magnetic saturation so that the FET 22 is destructed.
Patent JP-S5879738-A (JP)
Title: Manufacture of semiconductor element
Inventor: JIMI EIJI
IPC: H01L21/58
Filed: 1981-11-07
Abstract: PURPOSE:To permit solder to be reliably welded without subjecting a semiconductor wafer to any thermal shock, by a method wherein a layer made of a metal having a melting point lower than the boiling point of a flux in a soldering paste is formed on an ohmic electrode, and after the soldering paste is  formed, the semiconductor wafer is heated in the atmospheric air. CONSTITUTION:After an ohmic electrode 1 is formed, a metal layer 3 made of a metal having a melting point lower than the boiling point of a flux in a soldering paste is formed on the electrode 1. Then, a soldering paste 4 is applied thereto. Next, a semiconductor wafer 2 is heated in the atmosphere above the melting point of the soldering paste 4 thereby to melt the solder as well as vaporize the flux. Thus, a solder layer 4a is formed on the ohmic electrode 1 by utilizing the cohesiveness of the molten solder.
Patent JP-H1027302-A (JP)
Title: Device for publishing magnetic display medium
Inventor: KONDO TAKAO
IPC: B42D15/10
Filed: 1996-07-08
Abstract: PROBLEM TO BE SOLVED: To enable rapidly publishing a magnetic display medium by providing a means housing a plurality of magnetic media while heating the display layers of the magnetic display media to a liquid phase and the means partially applying magnetism to the display layers in the heated state. SOLUTION: A control means 101 controls a housing means 102, a transfer means 103, a whole surface magnetism applying means 104 and a partial magnetism applying means 105. When a light emission command is issued to a light emission device, the light emission device is started to be operated, and the temp. of the magnetic display media is the housing means 102 is recognized by the specification of the control means 101. When it is recognized that the temp. is the temp. of the liquid phase state, the temp. of the magnetic media in the housing means 102 is recognized by the specification of the control means 101. Then, the transfer means 103 is operated, and the magnetic display medium is initialized by the whole surface magnetism applying means while moving it under the whole surface magnetism applying means 104.  Then, the partial magnetism applying means 105 is operated while further moving it by the transfer means 103. The magnetic display medium is carried out of an issue device, and the operation of the publishing device is ended.
Patent JP-S57101412-A (JP)
Title: Piezoelectric oscillation unit
Inventor: SATOU HIROCHIKA
IPC: H03H9/21
Filed: 1980-12-16
Abstract: PURPOSE:To reduce the space when a plurality of oscillators are used, by allocating different oscillators in one package. CONSTITUTION:Tuning type quartz oscillators 12a, 12b are mounted so that a supporting member 11 fixed to a stem 10 is clipped. A voltage of opposite polarity is applied to an electrode of oscillators 12a, 12b. Two oscillators are oscillated with opposite phase. Since the displacement of oscillator bases 13a, 13b is cancelled with each other, the energy from the supporting member 11 and the stem 10 to outside can be much reduced. Thus, two oscillators can be located in a superminiature case. As an application, the unit is most suitable for temperture compensation taking into consideration the two oscillators.
Patent JP-2000053424-A (JP)
Title: Perovskite for coating of interconnector, interconnector and fuel cell
Inventor: BATAWI EMAD
IPC: H01M8/0228
Filed: 1999-06-24
Abstract: PROBLEM TO BE SOLVED: To enable to form a coating having almost same characteristics as those of LSM as a well-known perovskite without containing expensive La to decrease the production cost by using a perovskite having a specified compsn. for the perovskite for the coating of an interconnector used for a high temp. fuel cell. SOLUTION: This perovskite is used for a coating of an interconnector used for a high temp. fuel cell. The perovskite is expressed by the chemical formula of ABO3-ε, wherein A=(E1-ωLnω-δ), B=(G1-zJz), ε is a positive or negative number having about <0.5 absolute value, E is an alkaline earth metal, preferably Sr or Ca; Ln is a lanthanoid, preferably La or Y; G is a transition metal preferably Mn; J is a second transition metal preferably Co; ω satisfies 0.1<ω<0.5, preferably 0.2; δ is a positive or negative number having <0.2 absolute value; z satisfies 0.01<z<0.5 preferably 0.2.
Patent JP-H0466664-A (JP)
Title: Sputtering target for nitrogen-containing 'sendust(r)'
Inventor: HOCHIDO YUKO
IPC: C04B35/495
Filed: 1990-07-05
Abstract: PURPOSE:To obtain a sputtering target for 'Sendust(R)' providing a thin mag netic film containing required amount of nitrogen by mixing a powder of the nitride of Fe, Si, or Al with a mixture of respective powders of Fe, Si, and Al in a 'Sendust(R)' composition and then sintering the resulting powder mix ture. CONSTITUTION:The sputtering target is obtained by mixing a powder of at least one kind among the nitrides of Fe, Si, Al, etc., with a mixture of respec tive powders of Fe, Si, and Al in a 'Sendust(R)' composition, a mixture of another metal powder with a powder of an alloy consisting of two elements in the above composition, or an alloy powder of 'Sendust(R)' and then sintering the resulting powder mixture. This sputtering target necessarily contains pre scribed amount of nitrogen and vapor-deposited at the atomic level at the time of sputtering, and the target composition is passed into a film composition relatively with fidelity as mentioned above. Accordingly, by using this sputtering target, required amount of nitrogen can necessarily be contained in the thin 'Sendust(R)' film. It is preferable that nitrogen content in this sputtering target is regulated to 0.01-3wt.%.
Patent JP-H0623973-A (JP)
Title: Method and device for ink jet recording
Inventor: NAKAZAWA AKIRA
IPC: B41M5/00
Filed: 1992-07-06
Abstract: PURPOSE:To perform ink jet recording to various kinds of recording mediums from rough recording paper to a film which does not absorb ink, without causing ink after recording to be faded by ultraviolet rays, air and the like, in respect to a method of and a device for ink jet recording wherein recording is performed by jetting ink droplets from a nozzle. CONSTITUTION:An ink receptor 1 is formed by applying a thermoplastic resin 1b, which is melted at a temperature lower than a melt temperature of a transparent plastic film 1a, to said transparent plastic film 1a. Ink jet recording is performed by jetting ink droplets from an ink jet nozzle 4 onto the side of the face of the ink receptor 1 where the thermoplastic resin 1b is applied, and a recording medium 10 is laminated on the side of the face of the ink receptor 1 where the thermoplastic resin 1b is applied, so as to contact closely to the ink receptor. By melting the thermoplastic resin 1b under heating, the ink receptor 1 and the recording medium 10 are permitted to adhere to each other.
Patent JP-S6422800-A (JP)
Title: Jack
Inventor: YABUKI MINORU
IPC: B66F3/00
Filed: 1987-07-16
Abstract: PURPOSE: To simplify the structure of a jack and to automatically lift articles and widening a space between the articles by pushing by setting as a fixed end one end of a shape memory alloy material bent on one plane where a memory shape is linear, and providing a seat in the other end thereof. CONSTITUTION: The nut 3 of a seat 5 is engaged with a screw 2 provided in one end of a shape memory alloy structural material 1 bent on one plane, and a seat 4 is directly joined to the other end thereof. This structural material 1 is heated by hot water or hot wind so as to exceed a transformation temperature, and then restored to be a linear shape as a memory shape. By this restoring force, an article is lifted, and a space between articles is pushed to be widened, and this space is maintained.
Patent JP-H0530005-A (JP)
Title: Power supply changeover circuit for small sized portable telephone set
Inventor: TSUNEHIRO NAOJI
IPC: H04B7/26
Filed: 1991-07-18
Abstract: PURPOSE:To make the small sized portable telephone set small in size and light in weight by making a power supply section of the small sized portable telephone set smaller in size and lighter in weight. CONSTITUTION:A P-channel power M0SFET7 is provided to the circuit as a power supply changeover element and turned on by applying a negative voltage between its gate and its source such as -11V from a DC/DC converter 9, power is supplied from a battery 2 as one power supply, and the power M0SFET7 is turned off by setting an equi-potential to the gate and the source of the power mOSFET7 and power is supplied from other power supply source 3.
Patent JP-S6421588-A (JP)
Title: Character recognition system
Inventor: TAKAHASHI NAOYA
IPC: G06K9/62
Filed: 1987-07-16
Abstract: PURPOSE:To obtain a high recognition ratio by deciding the sort of a character from the size and position of an inputted character and automatically selecting and applying recognition argorithm appropriate for each sort. CONSTITUTION:The titled system is provided with a 'KANJI' (Chinese character)/'KANA' (Japanese syllabary) discriminating part 3, recognition argorithm for 'KANJI' and recognition argorithm for 'KANA'. In case of inputting a character for instance, 'KANA' is written in a frame surrounded by a dotted line. The inputted character is sorted into 'KANJI' or 'KANA' by the discriminating part 3 in accordance with its size and the recognition argorithm 4 or 5 appropriate for each sort is automatically selected and applied to recognize the character. Consequently, the recognition rate of a character can be improved without using much labor for the input of a sentence.
Patent JP-S5881995-A (JP)
Title: Formation of metal oxide film
Inventor: OZAWA HIROSHI
IPC: C23C18/12
Filed: 1981-11-09
Abstract: PURPOSE:To form a metal oxide film having insulating property and corrosion resistance on a conductive substance, by a method wherein the conductive substance is immersed in an aqueous dispersion of metal oxide fine particles with specific particle sizes or less to precipitate said metal oxide fine particles thereon by electrophoresis and the resulting fine particle deposited conductive substance is baked. CONSTITUTION:An aqueous dispersion of metal oxide with a particle size of 0.5mum or less (especially, 0.1mum or less), for example, alumina, magnesium oxide, silica, barium oxide or titanium oxide is prepared. When a conductive substance is immersed in this aqueous dispersion and used as an electrode to pass current therethrough, metal oxide fine particles having positive charge are electrophoretically moved to a cathode and the metal oxide fine particles having negative charge are electrophoretically moved to an anode to be precipitated and deposited on the surfaces of the conductive substance. When this metal oxide deposited substance is introduced into an electric furnace to be sintered, a metal oxide film is formed on the conductive substance.