baber/WOPTO huggingface dataset:
Patent JP-H05303769-A (JP)
Title: Optical disk
Inventor: MURAKAMI YOSHITERU
IPC: G11B7/2542
Filed: 1992-04-27
Abstract: PURPOSE:To make interference fringes invisible and to prevent transient warpage by forming a recording film and a first protective film on one surface of a plastic substrate and a moisture permeation preventive film and a second protective film on the other surface and specifying the product of the refractive index and film thickness of the moisture permeation preventive film. CONSTITUTION:A recording film 2 is formed on one surface of the plastic substrate 1 having light transmittability and the first protective film 3 is formed on the film 2. The moisture permeation preventive film 4 consisting of an inorg. material is formed on the other surface of the substrate 1. The second protective film 5 is formed on the film 4. The thickness of the film 4 is so set that the product obtd. by multiplying the refractive index of the film 4 by the thickness of the film 4 attains a <=42nm range. The thickness of the film 4 is set as extremely thin in such range, by which the transient warpage of the optical disk is prevented and the interference fringes of the optical disk are made invisible.
Patent JP-S593028-A (JP)
Title: Manufacture of base material for optical fiber
Inventor: YABUKI TSUTOMU
IPC: G02B6/00
Filed: 1982-06-23
Abstract: PURPOSE:To economically manufacture a base material for an optical fiber provided with a clad layer, by feeding SiCl4, etc. to the center layer of a burner having a triple structure, Ar to the intermediate layer and O2 to the outer layer and by depositing oxide on the tip of a quartz target. CONSTITUTION:SiCl4, GeCl4, POCl3, Ar and H2 are fed to the center layer of a burner 1 having a triple structure in glass containers 9, 23, Ar is fed to the intermediate layer, and O2 is fed to the outer layer to form fine oxide particles in an upward flame 25. The particles are sprayed and deposited on the tip of a rotating and rising quartz rod target 20 to grow a porous base material 10, and the material 10 is converted into sintered glass 19 in a sintering furnace composed essentially of a carbon heater 17 and a carbon core tube 18. Thus, a base material for an optical fiber provided with a clad layer is obtd. The difference in refractive index between the clad and core parts is controlled by changing the amount of GeCl4 in the gaseous starting materials, and the ratio between the clad thickness and the core diameter can be controlled by regulating the flow rate of N2 fed to the vicinity of the burner.
Patent JP-H10284314-A (JP)
Title: Magnetic core material
Inventor: SAGAWA MASATO
IPC: C22C38/00
Filed: 1997-04-10
Abstract: PROBLEM TO BE SOLVED: To generate a storing magnetic field in a void, by controlling the direction of orientation of grains of a compound which constitutes a magnetic core material and has high magnetocrystalline anisotropy, into a desired direction, and setting the coercive force at not higher than a specified value. SOLUTION: With respect to a magnetic material used for a magnetic core material, a rise gradient up to saturation magnetization (Is) on a magnetization curve in the case where a magnetic field is applied on a hard axis of magnetization needs be more gentle tan the rise gradient up to saturation magnetization (Is) in the case where a magnetic field is applied in the direction of easy axis of magnetization. Therefore, the ratio (Ie/Id) of the magnitude (Ie) of magnetization in the direction of easy axis of magnetization to the magnitude (Id) of magnetization in the direction of hard axis of magnetization, measured at the time when the magnetic field is 5 kOe, is set to be 2 or greater.  Since a highly anisotropic magnetic core material which has large saturation magnetization and is magnetically soft is required for a yoke, a pole piece and the like, the coercive force is set to be not greater than 2 kOe. Thus, leakage of magnetic flux from portions except for a void can be reduced.
Patent JP-S5732555-A (JP)
Title: Flat display and manufacture
Inventor: SHIRAISHI SEIJI
IPC: H01J31/12
Filed: 1980-08-06
Abstract: PURPOSE:To improve the strength and the accuracy of the interval of the electrode, by stretching a plurality of grid boards while applying the tension while inserting an insulative supporting frame composed of a thin glass plate laminated with solder glass between said grid boards to stick by sealing. CONSTITUTION:A grid board 1 for forming a multigrid electrode of a flat display is stretched in the circumferential direction under constant tension then chucked to the movable fixing section 3. Then a thin glass plate 6 previously coated on both faces with solder glass 5 is applied between the grid boards 1 and the upper and lower faces at the outside of the grid effective section 4, and both end sections of the thin board 6 are butted. Thereafter said section 3 is moved outwardly to apply the predetermined tension, and the solder glass sealing is performed under this  state. Since the grid is stretched with tension, the strength can be improved considerably while the accuracy of the interval between the electrodes can be improved and the display area can be increased.
Patent JP-H01277390-A (JP)
Title: Semiconductor storage device
Inventor: MIYAMOTO TAKAYUKI
IPC: H01L21/8242
Filed: 1988-04-28
Abstract: PURPOSE:To attain rapid data writing without destructing stored contents of a non-selected memory cell by setting up a potential difference between a high level signal and a low level signal to a data writing circuit to a value inhibiting the activation of sense amplifiers. CONSTITUTION:The title device is provided with a sense amplifier activating signal line SAL connected to the sense amplifiers SA1, SA2 in common and the data writing circuit 1 for entering external input data and applying a writing data signal consisting of a high level signal and a low level signal to a pair of selected bit lines BL1, BL2. The potential difference between the high level signal and the low level signal in the circuit 1 is set up to a value inhibiting the activation of the sense amplifiers SA1, SA2. Thereby, the sense amplifiers are not activated at the time of applying the writing data signal to the pair of bit lines. Consequently, rapid data writing can be attained without destructing the stored contents of a non-selected memory cell.
Patent JP-H07315549-A (JP)
Title: Device for preventing work from skewing into work feeding device
Inventor: OUCHIYAMA TAKASHI
IPC: B24B41/06
Filed: 1994-05-23
Abstract: PURPOSE:To prevent a work from skewing into a work feeding device, and prevent occurrence various failures attributed thereto. CONSTITUTION:A pair of touch type limit switches 19a, 19b are arranged to the upper part close to the front end part of a pair of right and left threaded rods 1, 1, and it is detected that a work is normally loaded on a threaded bar 1a by bringing the work W into contact with feeler bars 20a, 20b extending from a pair of touch type limit switches 19a, 19b. Diagonal feeding of the work is detected by bringing the work W into contact with either of the feeler bars 20a, 20b.
Patent JP-H07320831-A (JP)
Title: Socket device
Inventor: KATO AKIO
IPC: H01R33/46
Filed: 1994-05-23
Abstract: PURPOSE:To surely connect an earth terminal to a socket side. CONSTITUTION:A resilient contact portion 74 touching resiliently the internal face of a socket 3 is provided in an earth terminal 7. Thereby, the resilient contact portion 74 of the earth terminal 7 touches resiliently the internal face of the socket 3 so that the earth terminal 7 is surely connected to the socket 3 side.
Patent JP-2000297176-A (JP)
Title: Dechlorination apparatus
Inventor: SHIMURA KATSUMI
IPC: C08J11/10
Filed: 1999-04-15
Abstract: PROBLEM TO BE SOLVED: To provide a dechlorination apparatus which can melt waste plastics and effectively remove chlorine from the molten plastics. SOLUTION: A dechlorination apparatus 10 has a case 11, and an inlet side screw 12a and an outlet side screw 12b which are disposed in the case 11. The inlet side screw 12a and the outlet side screw 12b are each independently driven by driving mechanisms 21a and 21b, respectively. The number of revolutions of the outlet side screw 12b is set at 50-100% of that of the inlet side screw 12a and accordingly, a turbulence of the molten plastics is caused between the inlet side screw 12a and the outlet side screw 12b to improve the kneading effect.
Patent JP-H04315518-A (JP)
Title: Automatic connection device for wire
Inventor: FUJITA TAKEO
IPC: B23H7/10
Filed: 1991-04-13
Abstract: PURPOSE:To prevent a probe from making contact with a wire electrode, in an automatic connection device for a wire used for an wire electric discharge machine. CONSTITUTION:In an automatic connection device for a wire, a probe 74 of a wire detecting means 54 is located to a lower guide 12 in a manner to protrude and retract from a passage for a wire electrode 4. When a wire electrode 4 fed from a wire feeding means 52 succeeds in connection, a control means 56 separates the detecting probe 74 from the wire electrode 4.
Patent JP-H10303881-A (JP)
Title: Enciphering and decoding device, and method
Inventor: ISHIBASHI YOSHITO
IPC: G09C1/00
Filed: 1997-04-25
Abstract: PROBLEM TO BE SOLVED: To provide an encipherment method which can prevent the easy decoding without lowering its processing speed by updating a cipher key every time an enciphering/decoding means performs the enciphering or decoding operations by a prescribed number of times. SOLUTION: The data received from an input part and to be transmitted are enciphered by an encipherment part 13 by means of a cipher key, and the encipherment data C are produced and sent to an information processor 20 via a communication part 15. A CUP 11 updates a current key and adds the difference value to the current key stored in a current key storage part of a storage part 12 to produce a new current key. The new current key is stored in the current key storage part. A CPU 21 decides whether the data C are received at a communication part 25. If the data C are received at the part 25, a decoding part 24 decodes the dart C by means of a current key. Then the CPU 21 adds the difference value to the current key stored in the current key storage part of a storage part 22 to produce a new current key and stores this key in the current key storage part.
Patent JP-H08303876-A (JP)
Title: Solar heat collecting system
Inventor: ASAI SHUNJI
IPC: F24J2/46
Filed: 1995-05-02
Abstract: PURPOSE: To enable easier starting of a circulation pump even during idle boiling without increasing the head of the circulation pump. CONSTITUTION: A solar heat collector 1, a hot water storage tank 3 having a heat exchanger 2, a cistern 4 and a circulation pump 5 are connected sequentially by circulation pipings 6-10. An air piping 11 is provided between the solar heat collector 1 and the cistern 4. With such an arrangement, when the circulation pump 4 is started during idle boiling, air or steam in the solar heat collector 1 is discharged into the cistern 4 through the air piping 11, which keeps a back pressure from working on the circulation pump 5, hence facilitating the starting of the circulation pump. To prevent a heat medium in the solar heat collector 1 from flowing into the cistern through the air piping 11 during the normal operation, it is desired that the air piping 11 is provided with an orifice 12.
Patent JP-S5812128-A (JP)
Title: Cylinder unit of vtr head
Inventor: KAKIZAWA KOUJI
IPC: H02K21/22
Filed: 1981-07-10
Abstract: PURPOSE:To realize a compact and lightweight structure and a reduction of cost of a titled cylinder unit, by setting a motor between upper and lower ball bearings. CONSTITUTION:An upper cylinder 22 is adhered to a rotary shaft 21, and a rotary shaft fixing tool 23 is fixed with the cylinder 22. A motor yoke 24 is stuck to the inside of the cylinder 22, and a motor magnet 25 is attached to the inside of a motor yoke 24. A lower cylinder 30 is unified into a body with a housing 31 of a ball bearing and fixed to a chassis 32. An upper ball bearing 33 and a lower ball bearing 34 are attached to the housing 31, and the shaft 21 can rotate. The magnet 25 unified with the cylinder 22 rotates when a motor driving current is flowed to a motor coil 36.
Patent JP-H06350988-A (JP)
Title: Method of intra-block dc transformation coefficient quantization
Inventor: KIN SOUKOU
IPC: H04N19/136
Filed: 1994-05-23
Abstract: PURPOSE: To improve the quality of a video image to be transmitted by adjusting a step size of a quantization devie for an intra-block DC conversion coefficient obtained from the transmitted video image. CONSTITUTION: An intra-block DC quantization step size control section 25 sets an intra-block DC quantization device step size to '1' to made very precise quantization when a quantization device scale has a value of 1-4. Similarly the quantization device step size is set to '2' when the quantization device scale is a value of 5-8, the quantization device step size is set to '4' when the quantization device scale is a value of 9-16, and the quantization device step size is set to '8' when the quantization device scale is a value of 17-31. The intra-block DC quantization device step size is given to an intra-block DC coefficient quantization device 26. Then the intra-block DC coefficient is divided into the received quantization device step size and rounded off to be the adjacent integer and the quantized intra-block DC conversion coefficient is obtained.
Patent JP-H01279210-A (JP)
Title: Polarized wave maintaining optical fiber
Inventor: YANO SHINICHI
IPC: G02B6/10
Filed: 1988-04-30
Abstract: PURPOSE:To visually recognize the position of the principal axis of polarized waves from the outside by forming colored sections at the position of the principal axis (X-axis) of polarized waves at the coated part or another positions which are deviated from the principal axis by an appropriate angle. CONSTITUTION:Colored sections 2 formed at positions deviated from the principal axis (X-axis) of polarized waves by fixed angles at the coated part 1 of an optical fiber are formed on both sides of the optical fiber in belt-like forms. The widths of the colored sections 2 on both sides are equal to each other and the angular deviations of the sections 2 from the principal axis (X-axis) are <=1 deg.. The colored sections 2 can be formed at the same position as that of the principal axis or positions deviated from the main axis by 90 deg. or an appropriate angle. Therefore, the position of the principal axis can be confirmed visually.
Patent JP-S5811600-A (JP)
Inventor: NAKAISHI TERUO
IPC: C11D7/50
Filed: 1981-07-14
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-H04337344-A (JP)
Title: Thermoplastic resin composition anti-corrosive to metal
Inventor: FUKUMOTO TADAO
IPC: C08L57/06
Filed: 1991-05-14
Abstract: PURPOSE:To obtain the subject thermoplastic resin composition having permanent antistaticity, remarkable anti-corrosion to metal and excellent mechanical property by compounding a specific alkali metal salt to a polyamide elastomer and a styrene-based thermoplastic resin. CONSTITUTION:The objective resin composition is produced by compounding (A) 1-40 pts.wt. of a polyether ester amide or a polyether amide, (B) 9-5 pts.wt. of a styrene-based thermoplastic resin, preferably a rubber-modified polystyrene, ABS resin, AES resin, etc., (C) 0-5 pts.wt. of a modified vinyl polymer containing one or more kinds of functional groups selected from carboxyl group, epoxy group, amino group, hydroxyl group and polyalkylene oxide group (or its derivative) and (D) 0.01-10 pts.wt., preferably 0.05-5 pts.wt. (based on 100 pts.wt. of A+B+C) of an alkali metal salt of an acid selected from silicic acid, titanic acid, cyanic acid, acetic acid, boric acid, carbonic acid and phosphoric acid, preferably alkali metal silicate, titanate or acetate having particle diameter of <=10mum, especially <=5mum.
Patent JP-2000034617-A (JP)
Title: Ultrafine polyolefin filament yarn, its production and suede-like cloth and its production
Inventor: SHIMIZU YOSHISHIGE
IPC: D06N3/00
Filed: 1999-04-16
Abstract: PROBLEM TO BE SOLVED: To provide polyolefin ultrafine filament with a filament fineness of <=1.1 dtex, provide a suede-like cloth, preferably deeply colored suede-like cloth and obtain the suede-like cloth through simplified process. SOLUTION: A polyolefin with a melt flow rate of 50-300 g/10 min or further containing 0.01-6 wt.% of a pigment, is melt-extruded through a spinneret that is heated at 180-240 deg.C at its spinning head and has the nozzles of <=1.2 mm hole diameter, drawn at a 2-7 draw ratio at a drawing temperature or 50-90 deg.C to obtain the polyolefin ultrafine filament yarn of <=1.1 dtex filament fineness, the fiber strength of >=0.6 cN/dtex. Then, this ultrafine filament is used to make cloth and the cloth is subjected to the card-cloth gigging to obtain the objective suede cloth having, on the cloth surface, 30 counts/mm2 of bent fibers derived from the fiber on the surface layer of the cloth.
Patent JP-H06321086-A (JP)
Title: Load power source circuit for antilock control circuit
Inventor: HASHIBA HITOSHI
IPC: B60T17/18
Filed: 1993-05-11
Abstract: PURPOSE:To simplify a power source circuit and to reduce the cost thereof by using a fail-safe relay in a load power source circuit for an antilock control circuit in common for a solenoid in a solenoid valve and a motor in a hydraulic pump. CONSTITUTION:A common fail-safe relay 5 is provided in a power supply line for a solenoid 3 in a solenoid valve and a motor 4 in a hydraulic pump so as to control a field coil in the relay is controlled by a drive circuit 14a in order to open and close a contact in the relay, thereby a battery source (+B) common for the solenoid 3 and the motor 4 is available.
Patent JP-H02287223-A (JP)
Title: Infrared ray detector
Inventor: TAKAHASHI SHOZO
IPC: G01J1/02
Filed: 1989-04-28
Abstract: PURPOSE:To improve sensitivity and view angle characteristic by providing a groove vertially to separate an infrared ray sensitive area from non-sensitive areas in a direction of panning of infrared detectors arrayed two-dimensionally. CONSTITUTION:An upper electrode 8 concurrently serving to absorb infrared rays and an opposed electrode 10 are formed on both sides of a ceramic type pyroelectric element plate 7. The element plate 7 having the electrodes 8 and 10 thus formed is bonded with an insulating adhesive 11 on the side of a hollow section 14 of a semiconductor support base 12. Grooves 15 are formed in a cross and four elements are formed while a groove 16 for separation is formed vertical to a direction of panning to separate an electrode section as infrared sensive area of the elements from other parts. As a result, escape of heat by conduction can be prevented with the groove 16 to achieve a higher sensitivity. Moreover, the infrared sensitive section is separated from other sections vertical to the direction of panning thereby improving view angle characteristic.
Patent JP-H046499-A (JP)
Title: Controlling method for quality of reactor water in shutdown of reactor
Inventor: HENMI YUKIO
IPC: G21D3/00
Filed: 1990-04-24
Abstract: PURPOSE:To facilitate elution of ion-form radioactivity deposited on apparatus piping materials of a primary system without prolonging a reactor water temperature control time and to reduce deposit radioactivity, by increasing the concentration of hydrogen dissolved in reactor water and also by controlling pH of the reactor water to be on the acid side. CONSTITUTION:After a reactor is shut down, a reactor water temperature is kept at a prescribed temperature in a range from 200 deg.C through 80 deg.C for a long time, or a temperature fall speed is lowered and hydrogen and/or an acid, such as a chromic acid, a molybdic acid, a tungstic acid or a vanadic acid, which does not corrodes apparatus piping materials is injected into reactor water, so as to increase the concentration of hydrogen dissolved in the reactor water and also to control pH of the reactor water to be on the acid side. Thereby an oxide film formed on the surface of the apparatus piping materials of a primary system and containing cobalt radioactivity is removed. By keeping the reactor water temperature at a prescribed temperature in a range from 100 deg.C through 50 deg.C for a long time or by lowering the temperature fall speed, subsequently, oxygen or hydrogen peroxide is injected into the reactor water. Thereby elution of radioactivity from oxide films of manganese and chrome formed on the surface of the apparatus piping materials of the primary system is facilitated.
Patent JP-S5633454-A (JP)
Title: Amorphous alloy for transformer
Inventor: NANUN MICHIHIKO
IPC: H01F1/14
Filed: 1979-08-28
Abstract: PURPOSE: To enhance the amorphism forming capacity, thermal stability and permeability of an Fe-B-C amorphous alloy by converting the alloy into an Fe-Mo- B-C amorphous alloy contg. a little Mo.  
     CONSTITUTION: An alloy having a composition represented by formula I [where a+b+c+d=1, b=0.005W0.04 (atomic no. ratio). c=0.08W0.17 and d=0.02W 0.08] is melted by high frequency melting in an Ar atmosphere and solidified by very rapid cooling to obtain an amorphous alloy. This alloy is superior to an Fe-B- C alloy in permeability and considerably superior to the alloy in amorphism forming capacity and thermal stability. In addition, this alloy has a small iron loss as a general property of an amorphous alloy, so it is suitable for use as a power transformer iron core material. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-S61267429-A (JP)
Title: Data communication network controller
Inventor: KADOKURA SHOICHI
IPC: H04L12/00
Filed: 1985-05-22
Abstract: PURPOSE:To form a data communication network controller used in common for a loop communication network and a star communication network by constituting the controller of a reception section, a bypass circuit, a reception unit, a communication control block, a transmission unit and a transmission section. CONSTITUTION:Serial optical data received by a light reception section 1 is fed to one input terminal of an AND gate 4 from a waveform shaping circuit 3 and fed to the reception unit 5. The AND gate 4 forms a bypass circuit bypassing an output signal to the optical transmission section 6 only for the loop communication network. The reception unit 5 converts serial data into parallel data and sends the result to the communication control block 8 and a buffer 9. The buffer 9 stores the reception data fed from the reception unit 5 and the transmission unit 10 stores the transmission data to be sent, the transmission unit 10 converts the parallel data into serial data and the optical transmission section 6 converts the serial data into an optical signal, which is sent to an optical fiber 2.
Patent JP-S591087-A (JP)
Title: Submerged arc welding flux for stainless steel
Inventor: AOKI SHIROU
IPC: B23K35/362
Filed: 1982-06-28
Abstract: PURPOSE:To obtain weld metal for low boron stainless steel, by using magnesia contg. a specified amt. of boron for a submerged arc welding flux for stainless steel. CONSTITUTION:Weld metal of low boron stainless steel contg. <=5ppm boron is obtd. by using a submerged arc welding flux for stainless steel contg. 15-40% magnesia of <=0.04% boron content, 10-40% alumina, 1-15% carbonate and 5-20% fluorite. More particularly, the welding flux suited for use as a welding material for nuclear purposes is obtd.