baber/WOPTO huggingface dataset:
Patent JP-H06142243-A (JP)
Title: Manufacture of golf club shaft
Inventor: NEGISHI ISAMU
IPC: A63B53/10
Filed: 1992-11-12
Abstract: PURPOSE:To eliminate the need of forming a mold releasing layer including a mold releasing tube or a nylon bag, and improve work efficiency, compared with a conventional internal pressure molding method. CONSTITUTION:This method for manufacturing a golf club shaft includes a process where a golf club shaped and hollow mandrel of a thermoplastic resin having wall thickness between 2.0mm and 4.2mm is wound with prepreg 3, another process where the mandrel 1 wound with the prepreg 3 is set in a shaft forming die 4, and another process where a compressed fluid is blown into the hollow section of the mandrel 1 and formed under the application of pressure and heat. According to this method, a thermoplastic resin layer is formed via an injection molding method, thereby providing an advantage for manufacturing a golf club remarkably efficiently, compared with a conventional case. Also, the method provides another advantage allowing the manufacture of a golf club having less eccentric wall thickness and higher strength than a conventional shaft.
Patent JP-H09144759-A (JP)
Title: Sliding bearing
Inventor: TAKAHASHI SADAMU
IPC: F16C33/10
Filed: 1995-11-22
Abstract: PROBLEM TO BE SOLVED: To elastically-deform high oil film pressure caused by the twodimensional uneven contact of a crank shaft for dispersion leveling by forming a bearing saddle provided with a plurality of recessed holes deeper than a sum of the maximum roughness of a lower bearing metal external surface and that of a bearing saddle internal surface in an internal surface. SOLUTION: If high oil film pressure attempts to occur locally due to the two-dimensional uneven contact of a crank shaft, bearing metal is elastically- deformed at a high pressure section by a plurality of recessed holes formed between a bearing metal back plate and the internal surface of a bearing saddle 3, therefore, oil film thickness increases locally at a lubricated surface and oil film pressure is dispersed to the surrounding for leveling, which has a large relation to the maximum dimensions of the recessed holes and an interaction with the thickness of the bearing metal back plate is strong, and an influence roughly starts with 1/3 of the thickness. It is thus, possible to prevent the bearing metal from being damaged, for example, cracked or peeled off and improve bearing reliability.  It is also possible to minituarize the size of the bearing further for the compact structure of the whole diesel engine.
Patent JP-H02173042-A (JP)
Title: Production of polyimide of good moldability
Inventor: OTA MASAHIRO
IPC: C08G73/10
Filed: 1988-12-26
Abstract: PURPOSE:To obtain a polyimide having excellent moldability even after being kept at high temperatures for a long time without detriment to the excellent properties inherent in polyimide by reacting a specified diamine with a tetracarboxylic acid dianhydride in the presence of a specified monoamine. CONSTITUTION:A component (i) is reacted with a component (ii) in the presence of a component (iii) in the production of a polyimide via a polyamic acid to obtain a polyimide having a basic skeleton comprising repeating units of formula IV (wherein X and R are the same as those in the following formulas I and II). Component (i): a diamine of formula I (wherein X is a carbonyl or a sulfone); component (ii): a tetracarboxylic acid dianhydride of formula II (wherein R is a tetravalent group selected from among a 2C or higher aliphatic group, a cycloaliphatic group, a monocyclic aromatic group, a condensed polycyclic aromatic group and a noncondensed polycyclic aromatic group consisting of aromatic groups bonded together directly or through bridging members) and component (iii): aliphatic and/or cycloaliphatic monoamines of formula III (wherein Z is a 1-10C aliphatic group or a 3-10C cycloaliphatic group). The proportions of components (i), (ii) and (iii) are such that 0.9-1.0mol of component (i) and 0.001-1.0mol of component (iii) are present per mol of component (ii).
Patent JP-H05132951-A (JP)
Title: Construction of house foundation
Inventor: TAGUCHI HIDEKI
IPC: E02D27/01
Filed: 1991-11-14
Abstract: PURPOSE:To reuse a sheath pipe and reduce expenses. CONSTITUTION:A foundation 10 is constituted of a footing 11 laid down at first and a rising part 12 in which concrete is placed in frames 13 arranged on the footing 11. When the rising part 12 is placed, a set block 1 is arranged previously within the form 13. The set block 1 is provided with a sheath pipe 2 having a nearly V-shaped section, by use of reverse hollow conical member for instance. This set block 1 can be pulled out together with the sheath pipe 2 from the forms 13 before the concrete placed in the frames 13 is cured. Hence, the sheath pipe 2 can be reused.
Patent JP-2001140770-A (JP)
Title: Gear pump
Inventor: UEDA MINEO
IPC: F04C11/00
Filed: 1999-11-17
Abstract: PROBLEM TO BE SOLVED: To provide a small high pressure liquid transmitting pump having a compact size, a simple structure, excellent transmitting performance, and excellent maintainability, allowing excellent layout in a factory. SOLUTION: The structure of this gear pump 1 has a feature that it is composed of a pair of gears 3 meshing with each other; two rotary gears 2A, 2B sequentially operable by a common driving shaft 5 are mounted side by side in a single pump casing 4 in parallel; the rotary gear 2A on the suction port S side of the pump casing 4 is structured as an initial stage pressurizing force feeding part, the rotary gear 2B on the discharge port D side of the pump casing 4 is structured as a final stage pressurizing force feeding part; fluid passages 11.12.13 reaching the suction side of the rotary gear 2B from the delivery side of the rotary gear 2A are provided, liquid L is pressurized in two stages by the initial and final pressurizing force feeding parts, to deliver the liquid having a high pressure of 30 kgf/cm2.
Patent JP-2001139961-A (JP)
Title: Removal of heavy fraction of ethylene plant decomposition gas
Inventor: UCHIDA MASAYUKI
IPC: C10G55/04
Filed: 1999-11-17
Abstract: PROBLEM TO BE SOLVED: To provide a method for removing a heavy fraction in a decomposition gas for preventing the generation of an ultra heavy fraction caused by the polymerization of an olefin component contained in a gas liquid mixture of the heavy fraction condensed and liquefied in a mixing process with a gas, and a viscosity elevation of a circulating quench oil. SOLUTION: This method for removing the heavy fraction of an ethylene plant decomposition gas comprises mixing the decomposition gas from the ethylene plant with a circulating quench oil supplied from a fractionating process in a first mixing process to make a gas liquid mixture, separating the gas liquid mixture by feeding it to a gas liquid-separating process, feeding the liquid to a fuel oil-stripping process as desired, directly feeding the gas to the fractionating process or feeding to a second mixing process to form the gas liquid mixture cooled to the vicinity of a temperature at the bottom of a fractionating column in the fractionating process by mixing with the circulating quench oil supplied from the fractionating process, then feeding the mixture to the fractionating process to separate it to a light fraction and the circulating quench oil,  removing the heavy fraction by feeding the light fraction to the quenching process, and feeding at least a part of the circulating quench oil to the first mixing process.
Patent JP-H05145176-A (JP)
Title: Semiconductor laser
Inventor: NARUI HIRONOBU
IPC: H01S5/00
Filed: 1991-11-15
Abstract: PURPOSE:To make controllability for window formation better by causing a part in the vicinity of the end surface of a laser resonator of an activated layer to grow epitaxially on {311}B surface. CONSTITUTION:By causing an activated layer 5 to grow epitaxially on a condition of non-doping by MOCVD method, a part in the vicinity of the end surface of a laser resonator of the activated layer 5 becomes an n-type, as it is made on {311}B surface by epitaxial growth. The part of the n-type in the vicinity of the end surface of the laser resonator of the activated layer 5 becomes a window 8. In this case, the window 8 is formed only in the part of the activated layer 5 grown on the {311}B surface out of the main surfaces of compound semiconductor substrate 1-3. Consequently, it becomes possible to increase controllability for window formation.
Patent JP-2000147758-A (JP)
Title: Photosensitive conductive paste
Inventor: WADA YUJI
IPC: G03F7/027
Filed: 1998-11-17
Abstract: PROBLEM TO BE SOLVED: To form a fine wiring conductive layer with high density by adding each specified range of parts by weight of a photoreactive compd., photopolymn. initiator, photopolymn. accelerator to a specified pts.wt. of metal powder to prepare a paste. SOLUTION: This photosensitive conductive paste is prepared by adding 0.1 to 10 pts.wt. of a photoreactive compd., 0.1 to 5 pts.wt. of a photopolymn. initiator, and 0.1 to 10 pts.wt. of a photopolymn. accelerator to 100 pts.wt. of metal powder. The photosensitive conductive paste 3 thus prepared is applied on the surface of a ceramic green sheet 1, and specified regions of the paste are irradiated with light to harden the photosensitive resin compsn. in specified regions with light. The photosensitive resin compsn. in the region not hardened is removed by developing. When the wiring conductive layer is formed by this method, the line width and space between adjacent lines of the wiring conductive layer 5 can be reduced to fine lines and narrow spaces as <=60 μm.  Therefore, lines with small line width and a narrow space between lines can be obtd., and the wiring conductive layer can be formed with high density.
Patent JP-H10170306-A (JP)
Title: Resolver rotor structure
Inventor: NAGANUMA NAOHIRO
IPC: G01P3/44
Filed: 1996-12-06
Abstract: PROBLEM TO BE SOLVED: To obtain a resolver rotor structure which can be manufactured automatically by a method wherein a shaft and a rotor transformer are cut integrally and both are constituted of a magnetic material. SOLUTION: A first setp part 1a is formed on the outer circumference of a hollow shaft 1, and a rotor 2, for detection, which is composed of a laminated core is installed at the step part 1a by a fitting operation or a bonding operation. Then, the shaft 1 is constituted of a magnetic material which can be worked by a lathe by a cutting operation, and a rotor transformer 3 is formed by a cutting operation integrally with the shaft 1. Consequently, the shaft 1 and the transformer 3 are formed integrally of the same material. As a result, the shaft 1 and the transformer 3 can be worked automatically by an automatic machine, the cost of materials can be lowered, the number of components can be reduced, and the cost of a resolver rotor structure can be lowered sharply.
Patent JP-H02171108-A (JP)
Title: Structure for changing posture of ground-working apparatus of working vehicle
Inventor: OCHI TATSUJI
IPC: A01C11/02
Filed: 1988-12-24
Abstract: PURPOSE:To suppress the overshoot of a working apparatus and the time lag in the change of posture by providing an apparatus for detecting the discharge flow rate of a pump, widening the neutral zone when the flow rate is increased and narrowing the zone when the flow rate is decreased. CONSTITUTION:Potentiometers 10R, 10L attached to the base parts of height sensors 9R, 9L are connected to a controller. The discharge flow rate of a pump is detected by a rotational number sensor and a signal transmitted from the sensor is inputted into the controller. The working state of a hydraulic actuator is controlled by widening or narrowing the width of a neutral zone according to the increase or decrease of the discharging flow rate of the pump. The posture-control accuracy of a working apparatus 4 can be improved by this process.
Patent JP-2001146698-A (JP)
Title: Apparatus for molding buffer made from pulp
Inventor: TSUKIJI HIROTO
IPC: D21J3/00
Filed: 1999-11-17
Abstract: PROBLEM TO BE SOLVED: To reduce the amount of the used water when a buffer or the like made from a pulp is molded, and further to prevent the deformation thereof when releasing the buffer from a mold. SOLUTION: A cylinder-type injector 31 is attached to a fixed side mold 21. A molding raw material 40 previously produced by a raw material-producing means 10 is fed in a concave part 21a of the mold 21 by the injector 31. A convex part 22a of a moving side mold 22 is pressed in the concave part 21a of the mold 21 to compress and dehydrate the molding raw material 40, and to provide a damp-dry molded product. An exhaust hole is formed at least in one of the molds 21 and 22. A heater is installed in at least one of the molds 21 and 22.
Patent JP-H06176493-A (JP)
Title: Information reproducing device
Inventor: KASAHARA TETSUSHI
IPC: G11B20/14
Filed: 1992-12-08
Abstract: PURPOSE:To prevent a sound brake due to the rotation jitters in a CD player loading a buffer memory for vibration-proof. CONSTITUTION:EFM synchronism is detected by an EFM synchronism detection circuit 9 and EFM demodulation is performed by an EFM demodulation circuit 10 by making a regenerative clock generated by a regenerative clock generation circuit 8 an operational clock. After demodulated information is written in a prescribed address in a correction memory 13 by a correction memory control circuit 26, is read out properly, and an error is detected by an error correction circuit 25. The write and the readout in the correction memory 13 is performed based on the output of a first address specifying circuit 15 updating a specified address by the EFM synchronism. The information synchronizing with the regenerative clock read out from the correction memory 13 is written in a buffer memory circuit 19 by a buffer memory control circuit 27 and read out at a fixed speed synchronizing with a crystal clock.
Patent JP-H07179985-A (JP)
Title: High strength suspension spring excellent in corrosion resistance and its production
Inventor: KURODA TAKESHI
IPC: C21D9/02
Filed: 1993-12-24
Abstract: PURPOSE:To produce a high strength suspension spring, excellent in corrosion resistance and having high corrosion fatigue life even under severe corrosive environments, by specifying the composition of a steel material to be used, forming a nitrogen diffused layer of prescribed depth in a surface layer part, and constituting the outermost surface layer part of an (epsilon) iron nitride layer of prescribed thickness. CONSTITUTION:This suspension spring contains by weight, 0.3-O.7% C, 1.0-4.0% Si, and 0.2-1.5% Mn or further contains besides them, prescribed amounts of Ni, Cr, Mo, V, Nb, Al, Cu, Co, etc., and having the balance iron with inevitable impurities. In this suspension spring, a nitrogen diffused layer of >=50mum depth is formed in the surface and the outermost surface layer part is constituted of an (epsilon) iron nitride layer of >=3mum thickness, and further, internal hardness is regulated to >=HRC49.0.
Patent JP-H10171291-A (JP)
Title: Fixing device and image forming device
Inventor: YAMAUCHI MAKOTO
IPC: G03G15/20
Filed: 1996-12-09
Abstract: PROBLEM TO BE SOLVED: To prevent matter, which has stuck to a fixing roller, recovered by a cleaning blade from softening with the result that they stick to the fixing roller again and end up causing soil on an image and failure in carrying. SOLUTION: When the surface temperature of a pressure roller 34 reaches 125 deg.C during the warm-up time and the standby time, the idle rotation of the fixing roller 36 is stopped. On the other hand, during copying, by decreasing the surface temperature of the heat roller 33 to the range of 200 deg.C to 190 deg.C, the surface temperature of the pressure roller 34 is kept below a temperature at which toner starts to flow out. This prevents matter sticking to the blade 40a from softening due to the application of heat, and prevents the sticking matter from sticking again to the heat roller from the front end of the blade 40a.
Patent JP-H08184660-A (JP)
Title: Orientation detector
Inventor: NAKAJIMA YUJI
IPC: G01S3/802
Filed: 1994-12-28
Abstract: PURPOSE: To obtain an orientation detector in which a weaker signal can be detected by loading a small signal orientation, while emphasizing, to the variance of a signal orientation operated from operation results. CONSTITUTION: An acoustic signal received by a directional microphone 1 is delivered from an input section 11 to an amplifier 18 and a frequency analyzing circuit 2 and an amplified acoustic signal 18 is outputted from a speaker 19. A filtered acoustic signal 12 is subjected to A/D conversion 13 through the circuit 2 and then subjected to Fast Fourier transform 14. An output therefrom is received by an operating circuit 20 and the signal orientation is operated for the frequency subjected to frequency analysis through an orientation detection circuit 3 according to the amplitude thereof and then it is stored in a memory 15. An orientation analyzing/calculating circuit 5 receives operated values of signal orientation and operates the variance (d) of signal orientation for (m) frequencies based on the respective operation results.  An orientation variance loading circuit 6 then loads a small signal orientation, while emphasizing, on the variance (d). Consequently, the signal can be detected surely even if the S/N ratio is extremely low by decreasing (increasing) the amplitude of noise (signal) having unstable (stable) orientation.
Patent JP-H01167644-A (JP)
Title: Activation analysis of trace oxygen and nitrogen impurities in high-purity material
Inventor: SUZUKI AKIO
IPC: G01N23/221
Filed: 1987-12-24
Abstract: PURPOSE:To improve analysis sensitivity by converting an oxygen impurity to <13>N and a nitrogen impurity to <11>C by proton irradiation, separating nitrogen and carbon and making determination of the oxygen impurity and the nitrogen impurity. CONSTITUTION:A measuring sample is activated by projecting the proton thereon. The following nuclide forming reaction takes place: <16>O+P <13>N+alpha, <14>N+P <11>C+alpha. The activated sample is heated to 1,400 deg.C to oxidize the carbon and to gasify the nitrogen. The trace gas for analysis gasified in a heating furnace 1 is carried by a carrier gas and is introduced into a lime packed column 3 where C is absorbed and separated. The remaining gas passes a disoxidizing column 4 where the oxygen is removed and thereafter, the gas is carried to a molecular sieve 5 where the nitrogen is captured. The determination of the oxygen impurity and the nitrogen impurity is executed. The analysis sensitivity is thereby improved.
Patent JP-H03190996-A (JP)
Title: Production of grease having excellent acoustic property
Inventor: SUZUKI YOICHI
IPC: C10N10/02
Filed: 1989-12-20
Abstract: PURPOSE:To obtain a grease suitable for bearing having small diameter, etc., having noise-suppressing property by reacting a base oil dissolving or dispersing an isocyanate with a base oil dissolving or dispersing an amine in a specific condition. CONSTITUTION:(A) A base oil dissolving or dispersing an isocyanate and (B) a base oil dissolving or dispersing an amine are respectively pressed at <=5kg/cm<2> (preferably 25-200kgf/cm<2>) and reacted by impinging mixing, or respectively pressed at 0.5-25kgf/cm<2> (preferably 1-5kgf/cm<2>) and reacted with introducing to a stirring wing in rotating to afford the aimed grease.
Patent JP-H01173974-A (JP)
Title: Picture coding system
Inventor: NAKAGAWA KOYO
IPC: H04N19/196
Filed: 1987-12-26
Abstract: PURPOSE:To suppress the deterioration of picture quality even when a sharp edge, etc., are included in a picture and to prepare high-quality and high-compressed coded data by using a discrete sine transformation, etc., for an error picture. CONSTITUTION:In a block in which the sharp edge is included, n correlation is low, and when a discrete cosine transformation(DCT) is executed for the block, the quality of the picture is lowered. Even when the calculus of finite differences is executed for the discrete-cosine-transformed block with block coding data, which are obtained by further executing a block coding transformation(BCT) for the discrete-cosine- transformed block and further executing an inverse transformation for the block- coding-transformed block, the correlations of the difference data are not high respectively. Namely, when the correlation coefficients of the error picture for various pictures are examined, the correlation coefficients are about 0.6, which are not always high values but are rather low values in general, Thereupon, the discrete sine transformation(DST) is used for this error picture, which is different from the DCT. Thus, it becomes possible to code even the picture including a part with high correlation between near picture elements with high compression, and the restored picture can be also made into the one with high quality.
Patent JP-H07179569-A (JP)
Title: Epoxy resin composition
Inventor: AIHARA TAKASHI
IPC: H01L23/31
Filed: 1993-12-24
Abstract: PURPOSE:To obtain an epoxy resin composition containing a hydroquinone-type epoxy compound and a phenolic resin hardener having respective specific structures and capable of remarkably improving the soldering stress resistance of a semiconductor package in the mounting on a substrate. CONSTITUTION:This epoxy resin composition contains (A) an epoxy resin containing 30-100wt.% of a hydroquinone-type epoxy compound of formula I (R1 and R2 each is a lower alkyl), (B) a phenolic resin hardener containing 30-100wt.% of a phenolic resin hardener of formula II (R1 and R2 each is H or a lower alkyl), (C) an inorganic filler (preferably fused silica powder and/or spherical silica powder) and (D) a cure accelerator (e.g. triphenyl phosphine) as essential components. The hardener of formula II is preferably produced by the condensation reaction of phenol with p-xylenes. The amount of the component C is preferably 80-93wt.% based on the total composition.
Patent JP-H07178908-A (JP)
Title: Ink jet recording head
Inventor: MOMOSE KAORU
IPC: B41J2/045
Filed: 1993-12-24
Abstract: PURPOSE:To prevent the stagnation of an air bubble in the vicinity of a nozzle orifice while smoothing the flow of ink by forming the vicinity of the nozzle orifice from six wall surfaces being in contact with each other at an obtuse angle. CONSTITUTION:The through-hole 5 forming a pressure generating chamber consists of nine wall surfaces 5a-5h and the wall surfaces 5b, 5g, 5h, 5a to which a nozzle orifice 2 is opposed are in contact with each other at angles theta4, theta5, theta6 being an obtuse angle. The wall surface 5g forms inclined planes 5g1, 5g2 forming an angle theta7, with the surface thereof and the inclined planes are in contact with the wall surface 5g at an obtuse angle. The inclined planes 5g1, 5g2 uniformize the flow in the vicinity of the nozzle orifice 2 in the pressure generating chamber caused by the assymetric shape generated accompanied by the anisotropic etching of a silicon single crystal of a crystal azimuth. One wall surface 7a of a through-hole 7 forming an ink supply port is formed so as to become the same wall surface as one wall surface 5a of the through-hole 5 and the other wall surface 7b thereof is formed in parallel to the wall surface 7a so as to leave an interval becoming sufficient passage resistance necessary as the ink supply port.