baber/WOPTO huggingface dataset:
Patent JP-S60220303-A (JP)
Title: Industrial production of plastic optical fiber having high perfomance
Inventor: TOYOSHIMA SHINICHI
IPC: G02B6/00
Filed: 1984-04-18
Abstract: PURPOSE:To obtain an optical fiber having a core made of a polymer consisting essentially of methyl methacrylate or styrene by charging continuously a monomer to a polymerizing device after subjecting the monomer to a stage for distilling the same in the presence of oxygen partial pressure followed by removing the dissolved oxygen in the fraction. CONSTITUTION:The monomer is refined by distilling the same in the presence of oxygen, then removing the dissolved oxygen. The presence of an extremely slight amt. of monomer peroxide is permitted and in turn the absolute stability of the production process is attained. The blocking trouble occuring in the polymn. does not arise even without adding a polymn. inhibitor thereto if the presence of oxygen increases. The effective method of removing the dissolved oxygen is to treat a gas contg. oxygen at a low rate and contg. little dust, for example, gaseous nitrogen contg. >=0.1ppm oxygen by a polyacrylonitrile ultrafilter membrane having the filtration performance capable of separating >=90% human albumin to remove the dust therefrom, then bringing such gas into counter current contact with the monomer in a gas-liquid contact column. The dissolved oxygen in the solvent soln. of a plymn. initiator and chain transfer agent is removed by the method similar to the disoxidizing method of the monomer.
Patent JP-H02256885-A (JP)
Title: Piston pump with variable capacity
Inventor: OTANI HIDETOSHI
IPC: F04B1/20
Filed: 1989-03-30
Abstract: PURPOSE:To construct a piston pump using a less number of parts and in a small size by installing an operating piston to control the tilt angle of yoke, a pressure control valve to decrease the discharge amount when the discharge pressure has attained a set value, and a pressure adjusting screw therefore in a coaxial arrangement. CONSTITUTION:A spool 17 receives the discharge pressure on one of its end faces, where a spacer 22 is arranged, through passages 32, 28 and a hole bored in the spool, while the other end is released in a housing 1 through a passage 27 and another hole in the spool and receives the force of a pressure adjusting spring 20. If the discharge pressure exceeds the set value according to this pressure adjusting spring 20, therefore, the spool 17 displaces against the spring 20, and the passage 28 is put in communication with another passage 26 to cause introducing the discharge pressure to a pressurizing chamber 24, and an operating piston 16 displaces to rotate the yoke 5 in the direction of lessening its tilt angle. This allows constructing a control element for the yoke from a less number of parts and in less man-hours for fabrication, that should lead to enhancement of the processing efficiency.
Patent JP-2000274398-A (JP)
Title: Fluid axial flow pressure feeding device and its usage
Inventor: MORIKAWA HARUHIKO
IPC: H02K49/10
Filed: 1999-03-19
Abstract: PROBLEM TO BE SOLVED: To connect pipelines before and after a pump or a fan with each other so as to be in a coaxial form without being bent, and to prevent fluid fed with pressure from leaking. SOLUTION: In order to axially suck in fluid from one pipeline 2 so as to axially feed it to the other pipeline coaxially connected with one pipelipe 2, an impeller 11 to the outer circumferential part of which magnetic material 14 is mounted, is internally disposed rotatably to a non-magetic pipe combined with axial flow use, specified in diameter, and a magnetic force inductive rotation driving part 17 drivingly rotating the aforesaid impeller 11 by means of magnetic force, is disposed to the outer side of an axial flow pipe 3. And this fluid axial flow pressure feeding device 1 is so devised as to be connected with the pipeline 2 in an axial flow form through a flange and the like.
Patent JP-S572300-A (JP)
Title: Novel nitrosourea derivative
Inventor: SUAMI TETSUO
IPC: A61K31/70
Filed: 1980-06-09
Abstract: NEW MATERIAL:Nitrosourea derivatives of formula I (OR is hydroxyl residue in a steroid bearing hydroxyl groups).  
     EXAMPLE: 3-O-{[ 2'-[(2-chloroethyl)nitrosoamino]carbonyl ]amino-2'-deoxy-β-D- glucopyranosyl}-cholesterol.  
     USE: Antitumor agent.  
     PREPARATION: The condensation reaction between a steroid bearing hydroxyls and a saccharide of formula II (Ac is acetyl; Z is amino-protecting group) gives the compound of formula III. After deacetylation and removal of protecting groups, 2- chloroethyl isocyanate is made to react with the product to give the compound of formula IV. Finally, the compound is subjected to nitrosation to give the compound of formula I. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-S62234884-A (JP)
Inventor: KAMEI KIYOHIRO
IPC: H05K1/02
Filed: 1986-04-04
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-S59202156-A (JP)
Title: Production of eutectic graphite cast iron in die casting
Inventor: KATOU TATSUHIKO
IPC: B22D15/00
Filed: 1983-04-30
Abstract: PURPOSE:To obtain a cast iron having eutectic graphite which is internally uniform by using a die formed of a copper alloy having high heat conductivity, cooling forcibly the die to increase the cooling rate and regulating the die parting time. CONSTITUTION:The chemical components of a molten metal are formed of 3.5-3.7% C, 2.0-2.7% Si, 0.4-0.9% Mn, <=0.15% S, 0.3% P and the balance Fe. Such molten metal is charged into a water cooled die formed of a copper alloy (0.2-0.8cal/cm<2>.S. deg.C heat conductivity) to cast a cast iron product having 20-6m/m wall thickness. The dies are parted at least after 15 sec The eutectic graphite is thus formed without adding an element for forming the finer grains of graphite such as costly Ti or the like and the production cost is considerably reduced.
Patent JP-H04286797-A (JP)
Title: Semiconductor storage device
Inventor: TAKAHATA AKIHIKO
IPC: G11C11/413
Filed: 1991-03-15
Abstract: PURPOSE:To write plural words of data in the lump. CONSTITUTION:At least one data setting line 12 transmitting a data setting signal is provided in the memory cell array of the semiconductor storage device, and N type MOS transistors 9a and 9b is added to the inside of memory cells 14a and 14b as a data writing circuit controlled with a data setting signal.
Patent JP-S521314-A (JP)
Title: Actuator abnormality detecting circuit of the gas turbin engine
Inventor: TAKAHASHI JIYUNICHI
IPC: F02C7/00
Filed: 1975-06-24
Abstract: PURPOSE: An abnormality detecting circuit capable of detecting the abnormal current which flows in the gas turbine actuator as the voltage having the same polarity. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S60220695-A (JP)
Title: Chrominance signal processor
Inventor: MATSUMOTO TOKIKAZU
IPC: H04N9/83
Filed: 1984-04-17
Abstract: PURPOSE:To minimize malfunctions caused by crosstalk and, at the same time, to make the response of a chrominance signal processor quicker, by setting the compositing ratio of an arithmetic circuit to a different value during the period of a burst signal. CONSTITUTION:Reproduced low-frequency conversion carrier chrominance signals inputted from a terminal 35 are converted into carrier chrominance signals at a balanced modulator 20 and inputted in a comb line filter 26 through a BPF21. The filter 26 is composed of a delay line 22, amplifiers 23 and 24, and subtractor 25 and the amplifiers 23 and 24 can change their amplification factors during a burst period only by means of a burst flag signal inputted from a terminal 37 and indicating a burst period. As easily understood from the characteristic shown by the broken line of the figure, the gain at the bottom of frequency is 0.4 time larger than that at the top of frequency and, therefore, a crosstalk component can be suppressed to 0.4 time since the crosstalk appears at the bottom of frequency.
Patent JP-2000275500-A (JP)
Title: Zoom lens barrel
Inventor: HONDA YUICHI
IPC: G02B7/04
Filed: 1999-03-23
Abstract: PROBLEM TO BE SOLVED: To provide a zoom lens barrel in which a difference in focal distance between a focusing area in a wide angle end zoom area and another focusing area in the zoom area next to the wide angle end zoom area is reduced and variation in the focal distance within each focusing area is reduced. SOLUTION: This zoom lens barrel has a built-in zoom lens comprising a plurality of groups of lenses and performs stepwise zooming into a plurality of zoom areas by rotating a cam cylinder provided with a lens group moving means for moving the groups of lenses in the direction of an optical axis, and also performs focusing in each zoom area. The inclination angle θ of a cam groove in a focusing area in the zoom area next to a wide angle end zoom area is greater than the inclination angle of a cam groove in a focusing area in another zoom area.
Patent JP-S59202576-A (JP)
Title: Tablet input device
Inventor: ISHIGAKI TAKATOMO
IPC: G06F3/048
Filed: 1983-04-30
Abstract: PURPOSE:To prevent erroneous inputs by providing a conductive member, which is coupled in terms of capacity with an XY electrode, in a part, which is interposed between key areas belonging to an extended definition area, of a blind sector set on boundaries of key areas of a tablet. CONSTITUTION:An information sheet 40 is placed on a pen touch input tablet constituted of the XY electrode. Conductive seals 20- as conductive members are stuck to the rear side of the information sheet 40 so that they cover blind sector parts on boundaries of key areas belonging to an extended definition area LKS. These conductive seals 20- are coupled in terms of capacity with the XY electrode. Blind sector parts belonging to the extended definition area LKS out of uniform blind sectors set on the tablet become effective input areas by conductive seals 20, and parts where seals 20 are not stuck are left as blind sectors. Thus, blind sectors in the extended definition area are eliminated to prevent erroneous inputs.
Patent JP-S60219447-A (JP)
Title: Fuel recirculator for carburetor
Inventor: FUJIKAWA TETSUZOU
IPC: F02M5/12
Filed: 1984-04-16
Abstract: PURPOSE:To recirculate the fuel in a fuel sump through the positive pressure in the crank case into a fuel tank when restarting an engine, by providing a fuel sump in a return path communicating between the float chamber of carburetor and the fuel tank while connecting the pressure lead path communicating with crank case to the fuel sump. CONSTITUTION:When starting an engine, a fuel cock 6 is opened to feed the fuel in a fuel tank 4 into a float chamber 3a. When stopping the engine, the fuel cock 6 is closed while a drain cock 8 is opened to transfer the fuel in the float chamber 3a into the fuel sump 9. When re-starting the engine, the fuel cock 6 is opened while the drain cock 8 is closed. The positive pressure in the crank case 2 will function through a pressure lead path 10 into the fuel sump 9 to push out the fuel and recirculate through a return tube 7 into the fuel tank 4.
Patent JP-H1010273-A (JP)
Title: Heat exchanger for internal pump and internal pump system
Inventor: TAKEHARA HIDETOSHI
IPC: G21C15/243
Filed: 1997-03-28
Abstract: PROBLEM TO BE SOLVED: To provide a small heat exchanger for internal pump capable of ensuring pressure-tight strength and an internal pump system provided with it. SOLUTION: A heat exchange 4 is constituted of heat conduction pipes 14 wherein primary cooling water for directly cooling an internal pump (RIP) 1 flows, a heat exchanger shell 13 wherein secondary cooling water for cooling the primary cooling water through the heat conduction pipes 14 flows, an upper water chamber 15 connecting a connection pipe 9 connected to the primary cooling water outlet of the RIP 1 and the conduction pipes 14, a lower water chamber 16 connecting a connection pipe 10 connected to the primary cooling water inlet of the RIP 1 and the conduction pipes 14, etc. In this constitution, the primary cooling water is at high pressure of 70kg/cm<2> and the secondary cooling water is at low pressure of 14kg/cm<2> .
Patent JP-S63243564-A (JP)
Title: Lockup clutch of torque converter
Inventor: KONO SATOSHI
IPC: F16H45/02
Filed: 1987-03-30
Abstract: PURPOSE:To slide compression springs with antiabrasive members and to prevent the abrasion of a piston securely by fixing the antiabrasive members to the portions where the piston and the compression springs of a lockup clutch are opposed. CONSTITUTION:At a side of a hub 1 of a lockup clutch A, a piston 3 which can be connected to the input part of a torque converter is furnished. On the other hand, at the other side of the hub 1, a drive plate 6 to be fixed to the piston 3 is furnished. The drive plate 6 and the hub 1 are connected rotatable each other through compression springs 9 accommodated in plural windows 7 and 8 which are formed in the drive plate 6 and the hub 1. Moreover, at the side of the piston 3 opposing to the compression springs 9, antiabrasive members 12 are fixed. When the car speed exceeds a specific value, the compression springs 9 can move a little within the windows 7 and 8 formed in the drive plate 6 and the hub 1 when the drive plate 6 and the hub 1 rotate relatively, but they never contact and slide with the piston 3 because their outer diameter parts contact and slide with the antiabrasive members 12.
Patent JP-H10274227-A (JP)
Title: Seizure preventing bolt/nut
Inventor: MURASE YOSHIHIRO
IPC: F16B33/02
Filed: 1997-03-28
Abstract: PROBLEM TO BE SOLVED: To prevent seizure caused by oblique insertion by combining a bolt having an incomplete screw thread part eliminated by cutting off a screw thread end part with a similar nut. SOLUTION: By cutting off the end part of the screw thread 4 of a bolt 1, an incomplete screw thread part is eliminated. Also, for a nut 2, an incomplete screw thread part is eliminated by cutting off the end part of a screw thread 5. Thus, even if the bolt 1 is obliquely inserted into the nut 2, the point A of the tip of the screw thread 4 is first contacted with the screw thread 5 of a nut 2 entrance side and, by a thrust force applied to the bolt 1, the bolt 1 is rotated around the point A in a clockwise direction. Then, the point B of the opposite side of the screw thread 4 is rotated until it is contacted with the tread 5 so as to correct the oblique insertion, and thereafter normal fastening advances. Thus, the occurrence of seizure is surely prevented.
Patent JP-S52310-A (JP)
Title: Speed controller of linear motor
Inventor: SAIJIYOU TAKASHIGE
IPC: H02P25/06
Filed: 1975-06-23
Abstract: PURPOSE: This speed controller of a linear synchronous motor controls powerfactors by shifting the phase of a sine wave current pattern to the position detecting signal or speed command of cars, eliminating a multiplier and the danger of step-out, etc. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S63240734-A (JP)
Inventor: MINAMI NOBUYOSHI
IPC: A01K61/00
Filed: 1987-03-30
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-H09263778-A (JP)
Title: Production of metal fuel and metal fuel feeder used therefor
Inventor: KIKUCHI MASAICHI
IPC: C10G32/02
Filed: 1996-03-29
Abstract: PROBLEM TO BE SOLVED: To provide a process for producing a metal fuel which can cause strong combustion in various types of combustion apparatus such as one for a heat source or thrust and to provide a metal fuel feeder used therefor. SOLUTION: A fine metal powder for a fuel is generated and mixed into a liq. fuel such as kerosene or fuel oil by arranging a positive electrode 82 and a negative electrode 81 face-to-face with each other in the liq. fuel and causing discharge between the electrodes 82 and 81, at least either of the electrodes 82 and 81 being used for a fuel. A positive electrode 82 and a negative electrode 81 are installed face-to-face with each other in an insulated fuel tank 80 (for a liq. fuel such as kerosene or fuel oil) so that a high voltage can be applied to between the electrodes 82 and 81, at least either of the electrodes 82 and 81 being used for a fuel. At least either of the electrodes 82 and 81 is made movable, and an electrode-moving apparatus 85 is installed to keep the distance between the electrodes constant.
Patent JP-S555911-A (JP)
Title: Production of vinyl chloride polymer
Inventor: INOBE ATSUNOBU
IPC: C08F289/00
Filed: 1978-06-28
Abstract: PURPOSE: Chlorinated polyolefin is previously swollen by a water-soluble organic compound and then dispersed in an aqueous medium preferably containing oxygen and a surface active agent. Further vinyl chloride monomer is fed and polymerized to produce title polymer with high impact strength.  
     CONSTITUTION: A chlorinated polyolefin is previously swollen by a water-soluble organic solvent as methanol, ethanol or isopropanol and then dispersed in aqueous dispersion containing oxygen with a partial pressure of 3W30 mmHg and at least one surface active agent selected from the group consisting of polyoxyethylenealkyl phenyl ethers, alkylsulfate salts, alkylsulfosuccinate salts and alkylarylsulfate ester salts. Then vinyl chloride is fed and polymerized in the presenc of a radical catalyst to produce said polymer. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S533981-A (JP)
Title: Dust inhibiting spray agent
Inventor: SAKAMOTO ICHITAMI
IPC: C09K3/32
Filed: 1976-06-30
Abstract: PURPOSE: To obtain a dust inhibiting compsn. with excellent dust inhibition, moisture absorption, and corrosion resistant properties by blending bodies of microorganisms, unicellular algae, or their cell wall-broken products or hydrolyzates. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S555914-A (JP)
Title: Polyester blow molding
Inventor: SUZUKI MASARU
IPC: C08L67/00
Filed: 1978-06-28
Abstract: PURPOSE: Polyester blow moldings that consist of polyethyelene terphthalate, a sulfonate salt derivative, diethylene glycol and a specific organic compound, thus preventing the whitening after being molded and having high transparency, antistatic property and impact strength and being suitably used as food vessels.  
     CONSTITUTION: To polyethylene terephthalate from terephthalic acid or its lower alkyl ester and ethylene glycol are incorporated (A) 0.01W5.0 wt% of an alkali metal alkylbenzenesulfonate, preferably sodium hexylbenzenesulfonte, (B) 2.0W4.5 mol% of diethylene glycol component based on the ethylene glycol, and (C) 0.01W 10 mol% of a compound of formula I (R is formula II, III or IV), such as 1,4- bis (hydroxyethoxy) benzene and the resulting composition is blown to form articles. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S536624-A (JP)
Title: Bushings for manufacture of glass fibers
Inventor: NOJI TOSHIO
IPC: C03B37/083
Filed: 1976-06-30
Abstract: PURPOSE: To present a busing for manufacturing glass fibers wherein an orifice plate is scarcely deformed even with a number of orifices by the use of an orifice plate curved inwards in the form of arch at the bottom of said bushing. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-H07288616-A (JP)
Title: Electronic display recording device
Inventor: AJIOKA MANABU
IPC: H04N1/00
Filed: 1994-04-15
Abstract: PURPOSE:To provide a device which implements display recording or additional recording, reads the display recording, prints out the data as a hard copy or transfers the recorded data to a printer or a device at a remote location via an OA equipment such as a personal computer. CONSTITUTION:This recording device is made up of a thermally reversible sensing display recording medium 1 implementing recording or erasure by varying a temperature condition, a drive roller 2 circulatingly moving the thermally reversible sensing display recording medium 1, a recording head 3 used to display and record recording information on the thermally reversible sensing display recording medium 1, an erasure head 4 erasing the display recording, a read head 5 reading the display recording and a recording pen 6 for manual recording. Then external information is recorded or added or erased manually. Thus, the inexpensive recording device with simple configuration is realized.
Patent JP-H08270955-A (JP)
Title: High frequency heating device
Inventor: IDOMOTO SUSUMU
IPC: F24C7/02
Filed: 1995-04-03
Abstract: PURPOSE: To enable a receptacle pan to be used for both a heating with a heater and a heating with a high frequency by a method wherein the receptacle pan is mainly made of cordierite and each of a specific weight and a specific heat of the main material is set to be not more than a specified value. CONSTITUTION: A receptacle pan 9 on which a heated article is placed is mainly made of cordierite having a low coefficient of thermal expansion, a specific weight of the receptacle pan 9 is 1.9 or more and a specific heat of the receptacle pan 9 is 0.7[×10<3> J/Kg.K] or less. In addition, a height of a wall 9a at an outer circumference part of the receptacle pan 9 is set to be a part of integer of an applied wave length and a rising angle 9b of the wall 9a is set to be 30 to 40 deg.. With such an arrangement as above, the receptacle pan can be used without any abnormal state at a temperature difference of 300 deg.C or more which is required for heating with a heater.  Concurrently, it is possible to prevent abnormal heat generating operation under no load of high frequency heating and a low load operation and further it is also possible to use the receptacle pan 9 which is used during both heating with heater and high frequency heating.
Patent JP-S59202694-A (JP)
Inventor: ITOU TOSHIKAZU
IPC: B29C43/20
Filed: 1983-05-02
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-S58195298-A (JP)
Inventor: OOYAMA MITSUZUMI
IPC: G01S/
Filed: 1982-05-10
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-H09263977-A (JP)
Title: Production of thin steel sheet excellent in surface quality
Inventor: SATO NAOYA
IPC: C23G1/08
Filed: 1996-03-29
Abstract: PROBLEM TO BE SOLVED: To prevent the surface properties of a steel strip from being changed even in the case of being rolled for a long time by degreasing a cold rolled steel strip, immersing it in an acid soln. of specified pH, removing oxides remaining on the surface of the cold rolled steel strip, thereafter subjecting the same to continuos annealing and executing secondary cold rolling. SOLUTION: A cold rolled steel strip is degreased and is immersed in an acid soln. of pH<=4. In the degreasing stage for the cold rolled steel sheet, oxides such as iron powder repeat separation and adsorption to the surface of the steel strip and are finally formed into smudges to remain on the surface of the steel strip. It is immersed in the acid soln. of pH<=4 to uniformly and perfectly remove the smudges. When the pH of the acid soln. exceeds 4, the removing rate reduces. Since the smudges are removed, in an annealing stage, the components in the steel such as Mn, Si, Al or the like are not concentrated on the surface of the steel strip, and concentrated matter does not adhere to the surface of a secondary cold rolling roll.  Since there is no need of executing a concentrated matter adhesion preventing method, fringe patterns caused by the conventional preventing method are not generated. The surface roughness, hue or the like of the steel strip do not change, and the quality of the thin steel sheet is stable. The frequency of the exchange of rolls reduces.