baber/WOPTO huggingface dataset:
Patent JP-H0339944-A (JP)
Title: Transmission type screen and its manufacture
Inventor: YOSHIDA TAKAHIKO
IPC: G03B21/625
Filed: 1990-04-09
Abstract: PURPOSE:To improve the characteristic of focus by forming the base material of a sheetlike member where light successively transmitted from a light incident surface side is transmitted last of an almost transparent material and simultaneously providing a light diffusion layer on a light emission surface. CONSTITUTION:As for a transmission type screen 1, the almost transparent material is used as the base material for the sheetlike member 3 where the light successively transmitted through the one or more sheetlike members 2 and 3 from the light incident surface 21 side is transmitted last. Besides, the light diffusion layer 5 is provided on the light emission surface 32. Due to that, the light emitted from a video source such as a projection type cathod-ray tube 7 is passed through a projecting lens 8 and made incident on the screen 1. Then, it is not diffused by the respective sheetlike members 2 and 3 constituting the screen 1. However, it is diffused in a horizontal direction and a vertical direction by a light diffusion material in the light diffusion layer 5 on the light emission surface 32 of the sheet-shaped member 3 when it is emitted from the last sheetlike member 3. Thus, the excellent focus characteristic and excellent contrast are obtained.
Patent JP-H10287385-A (JP)
Title: Sheet for cd housing bag
Inventor: TAKEDA YUKIHIRO
IPC: C08J5/18
Filed: 1997-04-10
Abstract: PROBLEM TO BE SOLVED: To prevent a plasticizer from transferring to a compact disk and generating cloudiness by using a flexible polyvinyl chloride sheet for which a trimellitic acid ester is blended, as the plasticizer. SOLUTION: A platicizer, a stabilizer and a lubricant, etc., are added to polyvinyl chloride, and after blending them by a blender, they are kneaded by a banbury mixer and a mixing roll, and drawn by a calender roll and formed into a sheet. The polyvinyl chloride to be used is a polymer of vinyl chloride, and the degree of polymerization is approx. 700-4000. Also, as the plasticizer, a trimellitic acid ester is used, and the blending ratio is approx. 20-60 pts.wt. based on 100 pts.wt. of polyvinyl chloride. By a housing bag made of the flexible polyvinyl chloride sheet which is constituted in such a manner, the plasticizer is not transferred to a CD even when a compact disk(CD) made of polycarbonate is housed and stored for a long period of time, cloudiness does not generate.
Patent JP-S58211058-A (JP)
Title: Speed change gear of rotary shaft
Inventor: KURINO NOBUYOSHI
IPC: F16H3/46
Filed: 1982-05-31
Abstract: PURPOSE:To prevent improper action of a selector mechanism due to gear lubricating oil, by providing the speed change selector mechanism using a lining to the outside of a gear case. CONSTITUTION:A gear case 4 surrounding a speed reduction mechanism 2 is constituted by connecting shaft directionally divided two cases 4a and 4b, and a set of annular movable iron cores 5a and 5b are mounted concentrically further movably only in the shaft direction to the side end face of a driving shaft 3 of the case 4a. A fixed iron core 6 opposite in the shaft direction to said cores 5a, 5b is arranged to be used also for a supporting frame rotatably supporting the shaft 3, and a set of electromagnetic coils 7a and 7b are embedded to a position opposite to of said core 6 opposite to said cores 5a, 5b. A rotary iron core 8 is fitted to the shft 3 in a position between the core 6 and the case 4. Linings 9a and 9b are secured to the cores 8 and 6.
Patent JP-S5217939-A (JP)
Title: Playing device
Inventor: AIZAWA SEIZOU
IPC: A63F7/02
Filed: 1975-07-31
Abstract: PURPOSE: To make sure that every hit ball controls a prize ball conduit properly to discharge prize balls and thereafter the hit ball is taken out and a next hit ball is properly received. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S5945945-A (JP)
Inventor: DEIPATSUKU RANJIYAN BISUWASU
IPC: C23C16/46
Filed: 1983-05-27
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-S63257931-A (JP)
Title: Information recording medium
Inventor: HANEDA NORIHISA
IPC: G11B7/2534
Filed: 1987-04-14
Abstract: PURPOSE:To improve the contrast of the signal of a prepit by specifying the distance between the surface of an intermediate coating layer coating the bottom part of the prepit and the surface of an intermediate coating layer coating the top part of the side wall of the prepit. CONSTITUTION:This recording medium consists of a recording layer 13 which is provided via the intermediate coating layer 12 on the prepit provided on the surface of a disk-shaped substrate 11 and permits writing and/or reading of information by laser. The distance (a) between the surface of the intermediate coating layer 12 coating the bottom part of the prepit and the surface of the intermediate coating layer 12 coating the peak part of the side wall of the prepit satisfies the conditions: lambda/10n<=a<=3lambda/20n with respect to the refractive index (n) of the substrate 11 and the wavelength lambda of the laser light to be used at the time of reading the information from the recording medium. The contrast of the signal in the prepit part is thereby improved.
Patent JP-S61251219-A (JP)
Title: Nonlinear de-emphasis circuit
Inventor: HASE TOSHIHIRO
IPC: H03G7/00
Filed: 1985-04-29
Abstract: PURPOSE:To provide always a linear phase characteristic to any input signal level by controlling the gain of a noncyclic filter including a delay element in response to the input signal level. CONSTITUTION:A signal (a) which is a normalized signal inputted to an input terminal 11 in terms of amplitude 1 becomes a signal (b) via a delay element 2 and further becomes a signal (c) via a delay element 13. Then the signal (c) becomes a signal (d) via a variable gain element 14. On the other hand, the signal (b) outputted from the delay element 12 is inputted to a gain element 16 and becomes a signal (f). Further, the input signal (a) becomes a signal (g) via a variable gain element 17. A signal level detection element 15 outputs a control signal (e) in response to the level of the signal (b) outputted to the delay element 12 and the control signal (e) controls the gain A of the variable gain elements 14, 17. The signals d, f, g are added at an adder element 18 and the result is outputted as the signal (h) from an output terminal 19.
Patent JP-H07330215-A (JP)
Title: Manufacturing device for fixed-quantity web layered body
Inventor: TAKAISHI HARUO
IPC: B65H45/101
Filed: 1994-04-28
Abstract: PURPOSE:To constantly place a partitioning bar, for separating a quantitative web layered body from a successive folded web, at appropriate timing regardless of the operation speed of a device in the fixed-quantity web layered body manufacturing device wherein an operating speed is made variable. CONSTITUTION:Based on a count-up signal given when the given number of web pieces are folded on an elevating table 50, the performance start timing, for a partitioning bar driver device 72 for actuating a partitioning bar 71 to be placed between a web layered body on the elevating table 50 and a folded web successively folded on the web layered body, is controlled so as to be hastened in order by a controller 10 as an operating speed is hastened. The partitioning bar 71 is made to be placed at appropriate timing constantly regardless of the operating speed of the device.
Patent JP-S5616641-A (JP)
Title: Electric contact material
Inventor: KONDOU YUKIHIRO
IPC: C22C5/06
Filed: 1979-07-21
Abstract: PURPOSE: To obtain an electric contact material having short arc duration and superior fusion bonding resistance by mixing Ni-Cr alloy powder and Ag powder followed by compacting and sintering.  
     CONSTITUTION: A mixture composed of 2.5W20.0wt% Ni-Cr alloy powder of ≤325 mesh consisting of 50W95wt% Ni and 5W50wt% Cr and the balance electrolytic Ag powder of ≤200 mesh is compacted and sintered at 800W900°C for 4hr to manufacture an Ag-Ni type electric contact material contg. Cr. This material has short arc duration, superior fusion bonding resistance, superior consumption resistance and low contact resistance. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H11296809-A (JP)
Title: Thin film magnetic head
Inventor: KUSHIDA NOBUMASA
IPC: G11B5/31
Filed: 1998-04-06
Abstract: PROBLEM TO BE SOLVED: To reduce the peak shift, which causes a problem for the device, by reducing the undershoots of reproduced waveforms, to improve the error rate, to reduce noises from an adjacent track and noises caused by the residual of a bit information erasing and to improve the recording density by obtaining a sufficient magnetic field strength to conduct a recording on a high coercive force medium. SOLUTION: The magnetic core is formed by a bottom section magnetic film 1 and a top section magnetic film 2 in which at least the width of a track is determined by the step difference between both tip sections. Moreover, the head has an open loop shaped magnetic circuit, which has a magnetic gap 3 made of a non-magnetic film on the opposing surface side of the recording medium, the coil, which is made of an electrically conductive body and passes between the films 1 and 2 and crosses the magnetic circuit, and an insulating body 5 which electrically insulates the films 1 and 2. A magnetic film 6 is provided on either one or both of the films 1 and 2 having different magnetic permeabilities and the film thickness is varied at the center of a track and the tip parts of the track.
Patent JP-S58211153-A (JP)
Title: Image pickup device of camera for roll film
Inventor: KOUYAMA MASAHIRO
IPC: G03D13/00
Filed: 1982-06-02
Abstract: PURPOSE:To form a picture by a simple constitution in a prescribed area of a roll film, by arraying two pairs of heating means for heating the film by holding it with a heating material and a fixing frame in-between and an exposing means by cooling while holding the film with a cooling hammer and an exposure frame in-between. CONSTITUTION:A motor 15 at a heating position A is started, and a preheating material 11 guided by a guide is lowered, and a prescribed area of a roll film 1 is held with the preheating material 11 and a fixing frame 16 in-between, and compressed air is introduced into the fixing frame 16 to push the film 1 to the heating material 11, and the heating material 11 is raised after heating for a prescribed hours. Then, the film 1 is moved to an exposing position B and a cooling hammer 21 is lowered and the film is held with the hammer 21 and an exposing frame 26 in-between and is cooled by the cooling hammer 21 while pushing with the compressed air, and the film 1 at a focal point of image formation is exposed by a lens 29 after opening a shutter 28. By the same stage, the film 1 is developed by heating with an postheating materiall 31 at a heat developing position C. By such a way, the parts of heating, exposure and development are arrayed in a moving direction of the film and an image is formed easily in a simple constitution.
Patent JP-H09260127-A (JP)
Title: Oxide magnetic material and core for fly-back transformer
Inventor: ISHIDA SHIGETOSHI
IPC: H01F1/34
Filed: 1996-03-22
Abstract: PROBLEM TO BE SOLVED: To provide an oxide magnetic material with a low power loss at about 60kHz which is a practical frequency band in a display monitor for a computer and a core for a fly-back transformer consisting of this oxide magnetic material. SOLUTION: This oxide magnetic material is made to contain manganese oxide of 35 to 36mol% in Mno terms, zinc oxide (10.5 to 11.5% in terms of ZnO) and iron oxide (the rest) as main components. Further, as subcomponents, silicon oxide (100 to 200ppm in terms of SiO2 , calcium of (400 to 600ppm in terms of CaO), vanadium oxide (500 to 800ppm in terms of V2 O5 ) and niobium oxide (180 to 250ppm in terms of Nb2 O5 ).
Patent JP-H09257042-A (JP)
Title: Rolling bearing and is manufacture thereof
Inventor: OKUDA KOICHI
IPC: F16C33/66
Filed: 1996-03-21
Abstract: PROBLEM TO BE SOLVED: To reduce oscillation, elongate life, and suppress production of noises by forming a solid lubricating film made of Pb2 O3 and/or Pb3 O4 on a surface of a constituted parts where sliding friction or rolling friction is produced. SOLUTION: A film is formed on a constituted part of a rolling bearing suitable for high temperature and vacuum use wherre rolling friction or sliding friction is caused, for instance, a bearing ball 1 of the rolling bearing. A Pb coating 2 is performed on a surface of the bearing ball 1 by, for instance, ion plating, and then it is heated to 500 deg.C in atmosphere. A solid lubricating film 3 made of Pb2 O3 and/or Pb3 O4 is thus formed. The ratio of the Pb2 O3 and Pb3 O4 is 1:3 by heating for 10 minutes at 500 deg.C. This treatment is done not only to the bearing ball 1, but also to an outer ring, an inner ring, a rolling body and a holder.
Patent JP-S63258573-A (JP)
Title: Culture and proliferation of plant
Inventor: OISHI TORU
IPC: C12N5/00
Filed: 1987-04-17
Abstract: PURPOSE:To suppress respiration action of a plant, reduce the contamination with sundry germs and enable the improvement in the growth and survivability of the plant, by culturing a plant by tissue culture until the plant acquires photo-synthetic capability and treating the plant in an atmosphere having low oxygen concentration. CONSTITUTION:A plant is cultured by tissue culture until the plant acquires photo-synthetic capability and the cultured plant is further cultured and/or proliferated after the treatment in an atmosphere having low oxygen concentration in an aseptic culture system at an oxygen concentration of preferably 20.8%. The treatment period is determined by the oxygen-starvation resistance of the plant to oxygen concentration. The treatment atmosphere may contain preferably 350ppm-21% of carbon dioxide gas.
Patent JP-2000279913-A (JP)
Title: Method of repairing leakage in final disposal site of waste
Inventor: HIROSUE NORITOSHI
IPC: B09B1/00
Filed: 1999-03-31
Abstract: PROBLEM TO BE SOLVED: To provide a method of repairing leakage in final disposal site of waste applicable even to a conventional disposal site in which a system for detecting leaking places is not installed or even to a large-scale disposal site or a disposal site in use. SOLUTION: A vertical water barrier sheet 10 is erected so that it surrounds a buried waste 3 part above a water barrier sheet 1 in the range including an area containing leaking places of the water barrier sheet 1 together with a disposal facility outer periphery structure, and the upper part of the vertical water barrier sheet 10 is closed by a surface water barrier sheet 20. By thus partially sealing the waste 3 with the vertical water barrier sheet 10 and the surface water barrier sheet 20, inflow of leachate outside the sheet to the inside of the vertical sheet 10 or rainwater is blocked. In this way, leachate leakage from the leaked places in the area can be indirectly prevented.
Patent JP-H07303336-A (JP)
Title: Electronic circuit
Inventor: AKAMI AKIRA
IPC: H02P6/08
Filed: 1994-05-02
Abstract: PURPOSE:To miniaturize and simplify an electronic circuit with an internal power source which drives an internal circuit when the power supply from the outside is undesirably interrupted and, at the same time, to effectively utilize parts. CONSTITUTION:An electric circuit 1 is provided with first and second substrates 11 and 12 which can be connected to and disconnected from each other and the first substrate 11 is connected with an AC power source 3. The voltage from the power source 3 is transformed by means of a transformer 4 and converted into a DC voltage Va by means of a rectifier circuit 5. A smoothing capacitor 6 having a relatively small capacitance C1 is connected between power lines 10 and 11. The output of the capacitor 6 is inputted to a control circuit 7. The second substrate 12 is provided with an internal power source 19 and power lines 20 and 21 are respectively connected to the connecting terminals 24 and 25 of the substrate 12 through switches 22 and 23. An electrolytic capacitor 29 having a capacitance C2 larger than the capacitance C1 of the capacitor 6 is connected between the terminals 24 and 25. The second substrate 12 is also provided with a relay 26 which commonly turns on/off the switches 22 an 23.
Patent JP-S5719414-A (JP)
Title: Fast increasing process for strength of water-containing poor soil
Inventor: MIYOSHI HAJIME
IPC: C09K17/02
Filed: 1980-07-09
Abstract: PURPOSE: To increase the fast strength of water-containing poor soil at low cost in a process for increasing the strength of the water-containing poor soil with cement,  quenched blast-furnace slag and gypsum by a method wherein aluminum refining  slag is added.  
     CONSTITUTION: Addition agent A composed of dihydrogypsum and addition agent B composed of a mixture of 40W55wt% of Portland cement and 60W45wt% of fine quenched blast-furnace slag with a particle diameter of 100W1μ are mixed such that a weight ratio A/B of the addition agent A and the addition agent B shows a value of 10/90W30/70. The mixture added with aluminum refinery slag is applied to the water containing poor soil. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-S62249760-A (JP)
Title: Ion flow recording head and manufacture thereof
Inventor: NISHIKAWA MASAHARU
IPC: B41J2/41
Filed: 1986-04-24
Abstract: PURPOSE:To provide an ion flow recording head at high density and uniformity, by providing a metallic foil and an insulating sheet with holes by photolithography. CONSTITUTION:A first sheet A comprises an insulating sheet 21, recording signal electrodes 22 consisting of metallic foils, and ion flow controlling openings 23 penetrating the sheet 21 and the electrodes 22. A second sheet B comprises block electrodes 25 formed of a conductive material on one side of a insulating sheet 24, and parts corresponding to the ion flow controlling openings 23 of the first sheet A are removed. The first and second sheets A, B are adhered to each other, with the insulating sheets 21, 24 in contact with each other. The first sheet A is provided with a metal foil electrode an one surface of the insulating sheet, and holes are provided to the metal foil electrode and the insulating sheet at high density and uniformity by photolithography or an applied method thereof.
Patent JP-S5520077-A (JP)
Title: Composite tuning fork type piezoelectric oscilator
Inventor: KAWASHIMA HIROFUMI
IPC: H03H9/21
Filed: 1978-08-01
Abstract: PURPOSE:To improve the frequency-temperature characteristics by using different kinds of materials to the arms of the tuning fork. CONSTITUTION:Different kinds of fork arms, such as crystal fork arm 1 and lithium tantalate fork arm 2, are jointed together at junction part 3. In this case, the frequency-temperature characteristics features the composition of the crystal and lithium tantalate cantilevers. Now the secondary temperature coefficients of the crystal and lithium tantalate are defined as a2 and b2 plus the primary temperature coefficients as a1 and a2 each. Thus the frequency change to the temperature of the composite oscillator has no relation with the temperature when a1+a2=0 and b1+b2=0 are satisfied. But it is actually difficult to reduce the sum of the temperature coefficients of both materials down to 0, and an extremely small value of the sum can be realized. As a result, the frequency-temperature characteristics can be enhanced for the tuning fork type piezoelectric oscillator.
Patent JP-S61246598-A (JP)
Title: Manufacture of heat exchanger
Inventor: NODA TOSHINORI
IPC: F28F3/12
Filed: 1986-04-23
Abstract: PURPOSE:To improve the assembling workability of a heat exchanger as well as to lessen the storage space of it, by fixing a heat source pipe arranged on a heat exchanger plate with gaps on both sides of a pipe line by a foil having heat exchanging property, and by uprightly raising both edges of the foil to form fins by them. CONSTITUTION:A heat source pipe 2 is fixed on the surface of a heat exchanger plate 1 by a foil 3 made of flat and thin foil such as aluminum having heat exchanging property. Then the edges 4a of a foil 3 which are not bonded to the plate 1 are raised uprightly from the surface of a heat exchanger plate 1 to form fins 3a by them.
Patent JP-S5318695-A (JP)
Title: Preparation of heat-resistant alkyd resins
Inventor: FUKAMI AKIRA
IPC: C08G63/685
Filed: 1976-08-05
Abstract: PURPOSE: To obtain the title resins useful for insulating materials of motors, etc., having excellent film properties, thermal stability, by introducing imide rings into the molecules with a serious of continuous reactions without using solvents. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S61254436-A (JP)
Title: Wafer attraction sensor
Inventor: IMAMURA MASAMITSU
IPC: B65H3/08
Filed: 1985-05-02
Abstract: PURPOSE:To certainly sense if a wafer is attracted by allowing compressed air to jet along the inner wall of the body of a conical Bernoulli chuck, and thereby changing the pressure in the space between the Bernoulli chuck body and the wafer attracted. CONSTITUTION:When a solenoid valve 8 is opened, compressed air with a specified pressure, which is set by a pressure regulator 9, is supplied to a nozzle 3 and jets out along the inner wall of the body 1 to produce an attraction force directed upward. Thereby a wafer 5 situated in the position shown by the broken line is attracted by the body 1 and reaches the position shown by the solid line. This movement of wafer 5 changes the pressure at Point A (negative) greatly, that is transmitted to a pressure sensor 10 through a sensor tube 11. Thereby the pressure sensor 10 compares the pressure at Point A with the preset value and emits an electrically converted signal to indicate if wafer 5 is in attraction. This performance is independent from the material, surface condition and attitude of the wafer as well as eventual attachment of wafer drops to the wafer.
Patent JP-S5429414-A (JP)
Title: Electric car control system
Inventor: KITAGAWA KAZUTO
IPC: H02P7/00
Filed: 1977-08-04
Abstract: PURPOSE: To simplify transducer, in electric car drive alternater speed control system, by variable voltage variable frequency transduce (VVVF) control at low speed and by variable voltage constant frequency (VVCF) or constant voltage constant frequency (CVCF) control at speed higher than predetermined speed. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H03294251-A (JP)
Title: Production of hydroxyarylamine compound
Inventor: KAWASAKI NOBUO
IPC: C07C215/82
Filed: 1990-04-11
Abstract: PURPOSE:To obtain the title compound having slight coloring efficiently, in high yield and by a short-time reaction, by using an alkylmercapto alkali metal salt as a dealkylating agent and reacting an alkoxyarylamine compound with the dealkylating agent and then treating the reaction product with an acid. CONSTITUTION:An alkoxyarylamine compound shown by formula I [R<1> and R<2> are 1-4C alkyl; R<3> and R<4> are H, 1-4C alkyl and alkoxy; n is 0 or 1; p and t are 1-5; X<1> is group shown by formula II (R<5>=R<3> or R<4>; s is 1-4), group shown by formula III (R<6> and R<7>=R<3> or R<4>; k and j=s; y is -O-, -S-, -CH2-, 1,4- phenylene, etc.; m is 0-2) or group shown by formula IV (R<8> is H, 1-4C alkyl or aryl)] is reacted with an alkylmercapto alkali metal salt shown by the formula R-SM (R is alkyl; M is alkali metal), such as sodium thioethoxide and then treated with an acid to give the objective compound shown by formula V [R<9> and R<10> are R<3>, R<4> or OH; X<2> is group wherein OH is contained in each of R<5> to R<8> of X<2>).
Patent JP-H05111641-A (JP)
Title: Oxidation resisting cation-exchange resin
Inventor: YOOGU AARU DEINAGURA
IPC: B01J39/20
Filed: 1992-03-02
Abstract: PURPOSE: To provide cation-exchange resins having improved resistance to copolymer degradation caused by oxidizing agents, for example, molecular oxygen. CONSTITUTION: The resins are prepared by functionalizing a lot of some cross- linked copolymer beads with cation-exchanging groups. The cross-linked copolymer beads are prepared from para-substd. monovinyl aromatic monomer consisting of aromatic ring substd. by an oxidation-stabilizing part in a position para to a polymerizable vinyl part.