baber/WOPTO huggingface dataset:
Patent JP-2001148647-A (JP)
Title: Antenna diversity method and antenna diversity device
Inventor: USUI TAKASHI
IPC: H04B7/08
Filed: 1999-11-19
Abstract: PROBLEM TO BE SOLVED: To effectively identify an antenna in a best reception state from OFDM modulated data for diversity. SOLUTION: A frequency characteristic evaluation method is applied. In the frequency characteristic evaluation method, the symbol of the data for the diversity turned to an OFDM system and dispersed to plural sub carriers on a frequency axis is fast Fourier transformed in a fast Fourier transformation(FFT) circuit 214a and the energy of the sub carrier is calculated for a valid symbol. An identification circuit 215a counts the number of the energy of the sub carrier exceeding a threshold and the antenna of a high counted value is selected as the antenna in the best reception state. Further, when a reception power strength evaluation method and the above-mentioned frequency characteristic evaluation method are combined, the antenna in the best reception state is accurately selected.
Patent JP-H09170022-A (JP)
Title: Method for heating blank to be heated
Inventor: SHIMAZU SATOSHI
IPC: C21D9/00
Filed: 1995-12-19
Abstract: PROBLEM TO BE SOLVED: To provide the method for heating a blank to be heated which can prevent rolling trouble such as a defective shape at the time of rolling after induction-heating by preventing excessive temp.-rising of the edge parts of an induction heating blank at the time of induction-heating. SOLUTION: This method for heating the blank to be heated uses a continuous rolling equipment provided with a fuel combustion furnace and an induction heating furnace. The blank to be further induction-heated in the induction heating furnace after heating in the fuel combustion furnace is arranged together with a combustion heating blank side by side to heat both blanks in the fuel combustion furnace so that the temp. of the edge parts in the longitudinal direction of the blank at the time of induction-heating is not excessively raised.
Patent JP-H09124546-A (JP)
Title: Preparation of acrylic acid of pure grade
Inventor: BAUER WILLIAM JR
IPC: C07C57/075
Filed: 1995-11-28
Abstract: PROBLEM TO BE SOLVED: To reduce the contamination of an apparatus or production of wastes and continuously produce high-purity acrylic acid with a small amount of an amine used by feeding a crude acrylic acid containing the specific amine added thereto to a distillation column and feeding another amino to the upper part of the distillation column.  
     SOLUTION: A crude acrylic acid feed stream prepared by adding a compound of the formula [X 3  is a group of the formula COOR 6  (R 6  is H or a 1-6C alkyl)] or the formula HO-R 7 -NH 2  (R 7  is a 2-6C alkylene) at 0.1-2.0 molar ratio based on the total number of mol of (B) impurities which are aldehydes, maleic acid and maleic anhydride in (A) the crude acrylic acid thereto is fed to a distillation column at 25-100°C temperature and an amine feed stream containing phenylenediamine or 2,4-dinitrophenylhydrazine at 0.01-1.0molar ratio based on the total number of mol of the component (B) is simultaneously fed thereto to distill the crude acrylic acid feed stream in the presence of the amine feed stream. Thereby, the acrylic acid with <10ppm content of residual simple substance aldehydes is obtained. 
     COPYRIGHT: (C)1997,JPO
Patent JP-H03241522-A (JP)
Title: Magnetic recording medium
Inventor: TOU RIEKO
IPC: G11B5/73
Filed: 1990-11-29
Abstract: PURPOSE:To obtain good electromagnetic conversion characteristics, as well as electric conductivity and light shielding property for a medium having a multiplayered magnetic layer by specifying thickness of the most upper layer of the magnetic layer and the particle size and add amt. of carbon black in the lower layer. CONSTITUTION:The magnetic recording medium consists of a nonmagnetic supporting body 1, and the first magnetic layer 2 and the second magnetic layer 4 successively formed thereon. The most upper magnetic layer 4 is made 0.1 - 1.5 mum thick. The layer 2 contains carbon black of average particle size between >=5 mmu and <30 mmu and carbon black of average particle size between >=30 mmu and <150mmu by 0.1 - 3.0 wt.% and by 5 wt.%, respectively, to the magnetic powder. Thereby, the medium having a multilayered magnetic layer has enough electromagnetic conversion characteristics as wel as electric conductivity and light-shielding property.
Patent JP-H08160655-A (JP)
Title: Image forming device
Inventor: TANAKA ATSUSHI
IPC: G03G15/16
Filed: 1994-12-07
Abstract: PURPOSE: To provide an image forming device capable of obtaining a good image having no omission in the middle, capable of miniaturizing a cleaning device due to little residual transfer toner, and preventing the filming by endurance due to high transfer efficiency by setting the resistance value of an intermediate transfer body to a specific range, and setting the electrostatic capacity to a specific value or above. CONSTITUTION: The image formed on the first image carrier is transferred to an intermediate transfer body 20, then it is transferred to the second image carrier in this image forming device. The resistance of the intermediate transfer body 20 is set to 1×10<4> -1×20<10> Ω, and the electrostatic capacity of the intermediate transfer body 20 is set to 1×10<-12> F or above. The resistance value of the intermediate transfer body 20 must be set to 1×10<4> -1×10<10> Ω to satisfy both the primary transfer efficiency and the secondary transfer efficiency at high values.  The intermediate transfer body 20 is adjusted to the resistance value region capable of satisfying both the primary transfer efficiency and the secondary transfer efficiency at high values, the electrostatic capacity of the intermediate transfer body 20 is made large, and the transfer efficiency can be further increased.
Patent JP-2000163999-A (JP)
Title: Self-timing control circuit
Inventor: TANIGUCHI NOBUTAKA
IPC: G11C29/12
Filed: 1998-11-20
Abstract: PROBLEM TO BE SOLVED: To prevent the adjusted phase of a timing clock, generated by a self-timing control circuit using a DLL circuit, from varying from its optimum value due to manufacturing variance. SOLUTION: This self-timing control circuit is provided with a variable dummy load 7, which is electrically adjustable in capacity load instead of a dummy load which has its capacity load fixed. In a wafer testing process of a device, the capacity load of the variable dummy load 7 can be adjusted to its optimum value. The capacity load of the variable dummy load 7 adjusted to the optimum value has a set value fixed in the programmable memory of a fuse, etc. Consequently, variation in dummy load capacity load due to the variance of manufacture can be corrected, and the phase adjustment of a clock generator can be made more accurately.
Patent JP-H05165433-A (JP)
Title: Driving circuit for liquid crystal display device
Inventor: FUJITA MASAYA
IPC: G01R1/06
Filed: 1991-12-16
Abstract: PURPOSE:To easily perform observation for the signals of a data line and a gate line and to efficiently perform the product inspection of a driving circuit and the specification of a defective part by selecting a switching means sequentially, and outputting a driving signal applied to each line from an output terminal for observation sequentially. CONSTITUTION:Analog switches (switching transistors) S1-S4 are provided for the plural data lines of a liquid crystal panel in a data driver DD, respectively, and data driving signals XI-X4 applied to the data lines via the transistors S1-S4 for switching are taken out of the output terminal VCD for observation. Meanwhile, analog switches S5-S8 (switching transistors) are also provided for the plural gate lines of the liquid crystal panel in a gate driver GD, respectively, and gate driving signals Y1-Y4 applied to the gate lines via the transistors S5-S8 for switching are taken out of the output terminal VCG for observation.
Patent JP-H11165966-A (JP)
Title: Main rope replacing method of hydraulic elevator and fixture therefor
Inventor: NISHINA TAKATOSHI
IPC: B66B7/06
Filed: 1997-12-02
Abstract: PROBLEM TO BE SOLVED: To provide a main rope replacing method of a hydraulic elevator, where a main rope is safely and easily replaced, and a fixture to be used for. SOLUTION: A pit side rope shackle 7b of an existing main rope 9 is removed from a pit rope fastening beam 4a, and tied up with this pit rope fastening beam 4a in a state of being loosed by a first auxiliary rope 13a. Then, a car side rope shackle 7a of the existing main rope 9 is removed from a car rope fastening beam 3a, and it is drawn out to a lowermost floor hall. Thereat, the existing main rope 9 is cut off at a short distance to the car side rope shackle 7a, and connected to a new main rope 9a. Subsequently, pulling it hand over hand from a side of the pit-side rope shackle 7b of the existing main rope 9, this existing main rope 9 is replaced to the new main rope 9a.
Patent JP-H03191488-A (JP)
Title: Microprocessor device
Inventor: HIZUME HISANORI
IPC: G06F11/30
Filed: 1989-12-20
Abstract: PURPOSE:To quickly determine validity in the allocation of a new work in parallel system constitution by providing the microprocessor device with a processor part having a terminal to be activated when no operation is continued more than the fixed number of times and a counter for counting up the number of outputs from the terminal. CONSTITUTION:When no operation is continuously outputted from the NOPRUN terminal of a processor part 2 in the microprocessor 1 more than the fixed number of times, the counter 3 counts up the number of outputs and the processor part 2 holds itself, so that the value of a program counter can be determined from a program. After detecting the saving of the processor part 2, a controlling CPU 5 transfers the program to the position of the program counter and then clears the contents of the counter 3 to release the holding of the processor part 2. Consequently, the microprocessor 1 can attain the design system of a completely independent distributed system.
Patent JP-H01173465-A (JP)
Title: Rotary head type magnetic recording/reproducing device
Inventor: TONOMURA TETSUYA
IPC: G11B15/61
Filed: 1987-12-28
Abstract: PURPOSE:To obtain good reproduced picture quality even if a magnetic tape is reproduced after it is exchanged between VTRs with different number of rotary heads by determining the rushing position and the detaching position of the rotary head into/from the magnetic tape by an adjusting member. CONSTITUTION:The magnetic tape 1 is wound, and a rotary drum 4 provided with a pair of rotary video heads 2a, 2b and a pair of rotary audio heads 3a, 3b is revolved in the direction of an arrow, and the picture of one field is generated between 0 deg.-180 deg.. Besides, the magnetic tape 1 is wound around the rotary drum with the overlaps of alphaI, alphaO. At that time, the overlaps of alphaI, alphaO are determined by the set positions of a rushing side adjusting member 6 which is fitted to a fixed shaft 6a so as to be in an eccentric state and capable of rotating freely, and a detaching side adjusting member 7 which is fitted to the fixed shaft 7a so as to be in the eccentric state and capable of rotating freely. Thus, even at the time of reproducing after exchange between the VTRs with different number of the rotary heads, the stable and good reproduced picture quality can be always obtained.
Patent JP-H0615567-A (JP)
Title: Grinder
Inventor: NABESHIMA MITSUHIRO
IPC: B24B49/02
Filed: 1991-12-16
Abstract: PURPOSE:To reduce the extent of trouble and time being required for the measurement of dimensions in a ground part of a workpiece and regrinding conformed to the measured result. CONSTITUTION:A toolmaker's microscope 41 fitted with an XY table 32 is integratedly assembled in a machine body 11 of a grinder. After grinding is once finished, with a workpiece 1 left set to a grinding table 15 intact, dimensions of ground part of this workpiece 1 are measured in use of this toolmaker's microscope 41. The measured result is inputted into a computer, thereby controlling the process. In brief, if the measured dimensions are as in the specified values, the grinding is set as finished. If not, the workpiece is reground, the dimensions of the ground part is made so as to be approximated to the specified size. Therefore, there is no trouble for setting the workpiece to the grinding table 15. According to the measured result, the workpiece 1 can be automatically reground.
Patent JP-H06181176-A (JP)
Title: Semiconductor producing system
Inventor: YAGINUMA SADAHIRO
IPC: H01L21/205
Filed: 1992-12-14
Abstract: PURPOSE:To allow downsizing while preventing deposition of particles on a substrate by providing a space isolated from the atmosphere for containing the drive mechanism side end part of a linear drive shaft and realizing noncontact transmission of axial moving force to the linear drive shaft through permanent magnets disposed on the inside and outside of the space. CONSTITUTION:A substrate 9 is loaded to a boat 8 and a reaction chamber 1 is closed. The reaction chamber 1 is then evacuated through a reaction gas discharge port 5 while simultaneously heating is started by means of a heater 3. On the other hand, N2 gas is introduced through an inert gas ejection port 12 and evacuation is carried out through an inert gas suction port 13 such that the pressure in a vacuum chamber 40 is always lower than the pressure in the reaction chamber 1 thus feeding N2 gas toward the inert gas suction port 13. When desired pressure and temperature are attained in the reaction chamber 1, a drive mechanism 15 is lifted. Lifting motion of the drive mechanism 15 is transmitted through an annular permanent magnet 19 and a columnar permanent magnet 18 to a linear drive shaft 16 which is stopped at a moment of time when the board 8 is positioned at a predetermined uniform heating region in the reaction chamber 1.
Patent JP-H08240705-A (JP)
Title: Constituent element for diffractive optics
Inventor: RIKARUDO SAIMON SASUMAN
IPC: C23C16/27
Filed: 1995-12-20
Abstract: PROBLEM TO BE SOLVED: To manufacture a flat plate and a three-dimensional form of a polycrystal diamond having a large area by laying a chemical vapor deposited(CVD) diamond having an optical diffraction mechanism on or within the second surface at a constant gap from the first surface. SOLUTION: A substrate 10 has a lower surface 12 and an upper surface 14. This upper profile surface 14 corresponds to the projected end of a diamond machined to a desirable pattern and profile. In addition, the substrate 10 is disc type and the upper profile surface 14 is formed out of a series of concentric steps 16. The depth D of each step 16 is reduced from the center 18 of the substrate 10 to the periphery 20 thereof. The application of the profile so formed provides an optical diffraction profile for a lens. Thereafter, a diamond layer 22 is vapor deposited on the profile surface 14. The optical diffraction constituent element made of the CVD diamond is prepared by removing the substrate 10 from the layer 22.
Patent JP-H01176954-A (JP)
Title: Inspection instrument for substrate
Inventor: KIKUCHI HISASHI
IPC: G01R31/02
Filed: 1987-12-30
Abstract: PURPOSE:To perform replacing operation speedily and securely by providing a measurement adapter attaching/detaching mechanism and attaching and detaching an adapter for measurement to and from the front of the substrate. CONSTITUTION:An upper test head 14 fitted with the box-shaped adapter 13 for measurement is arranged in an elevation state above a lower test head 12 where many probe pins 11 are implanted. Then probe pins 11 are implanted in the reverse surface of the adapter 13, measurement adapter attaching/ detaching mechanisms 16 are fitted on both flanks of the reverse surface of the test head 14, and the flange parts 13a of the adapter 13 are inserted into the attaching/detaching mechanisms 16. Then when the adapter 13 is attached or detached, the flange parts 13a are inserted into gaps 30 between the top surfaces of the main bodies of the attaching/detaching mechanisms 16 and the reverse surface of the test head 14. Then when a coupling member is moved forth by a driving screw, the main bodes 24 move forth, cam rollers 22 move along the slanting surfaces of cams 26 to elevate the main body 24, and the flange parts 13a inserted into the gaps 30 are securely fixed to the reverse surface of the test head 14. Further, when the adapter 13 is detached, the driving screws are reversed to follow up the opposite procedure.
Patent JP-2000155370-A (JP)
Title: Camera
Inventor: MATSUMOTO TOSHIRO
IPC: G03B17/00
Filed: 1998-11-24
Abstract: PROBLEM TO BE SOLVED: To shorten finder loss time caused by the driving of a mirror as much as possible and to prevent a shutter chance from being missed by prolonging time that an object can be observed by a photographer at a photographing time with a simple configuration without increasing the cost of parts and an assembling cost. SOLUTION: This camera is provided with mirror members 1 and 2 which can be moved between an intrusion position where they are arranged in a photographing optical path and a retreat position where they are retreated outside the photographing optical path, a first lever member 10 driven to be rotated with a first shaft 10a as a center and a second lever member 30 coupled to the lever member 10 and turned with a second shaft 30a as a center by the turning action of the lever 10 so as to drive the mirror members between the intrusion position and the retreat position. Then, a distance (L1) to the coupling part of the first and the second lever members from the first shaft 10a is set to be longer than a distance (L2) to the coupling part from the second shaft.  Besides, the second shaft is arranged in an area surrounded by a line connecting the first shaft and both end positions of the moving range of the coupling part or near this area.
Patent JP-2000161509-A (JP)
Title: Fluid control valve, valve unit and fuel cell system
Inventor: KURITA KENJI
IPC: H01M8/04
Filed: 1998-11-24
Abstract: PROBLEM TO BE SOLVED: To provide the fuel cell system with a low cost and saved space of controlling the fluid such as a fuel gas and oxidizing agent gas by a valve unit connected plural fluid control valves. SOLUTION: In a fluid control valve for controlling the flow of the fluid by the valve body 1 moving straightly the inside of a valve main body by a drive means, upper/lower two valve seats 2, 3 are provided on the valve main body and seals 1a, 1b contacted with the valve seat are provided on the valve body 1 and an intermediate flow part 4 in which the fluid can be streamed is provided in the middle of upper/lower valve seat 2, 3 and a communication hole communicating with the outside is provided in the middle of the upper/ lower valve seats 2, 3 of the valve main body and the communication hole communicating with the outside is provided on at least one side of the upper part than the upper valve seat 2 of the valve main body and the lower part than the valve seat 3 of the valve main body.
Patent JP-H06178633-A (JP)
Title: Water purification apparatus
Inventor: KOBAYASHI IKUO
IPC: C02F1/32
Filed: 1992-12-14
Abstract: PURPOSE:To provide a water purification apparatus capable of steadily purifying water without causing the accumulation of dirt in a water tank for a long time and having an exchangeable scenery material. CONSTITUTION:A perforated plate 6 having holes 4 to hold water plants and holes 5 to pass water is placed on the bottom of a water tank 2 having a drain hole 7 on the bottom. The perforated plate 6 also works as a scenery material. The dirt of water in the tank 2 dropped through the perforated plate 6 is taken out through the drain hole 7 to the outside of the tank 2. A forced circulating path via a water purifying module 11 is connected to the drain hole 7.
Patent JP-H09150106-A (JP)
Title: Method for applying paste
Inventor: WATABE YOHEI
IPC: B05D1/18
Filed: 1995-11-27
Abstract: PROBLEM TO BE SOLVED: To improve productivity and to enhance reliability by subjecting ceramic sintered compact blocks to a pressure reduction to discharge the air in non-through-holes, taking these blocks out of paste and subjecting the blocks to the pressure reduction until the non-through-holes appear, then rotating or vibrating the blocks to remove the excess paste. SOLUTION: The ceramic sintered compact blocks 1 formed with the non- through-holes 11 are arranged in the base part of a meshed immersion vessel 2 and are immersed into the Ag paste 6, thereafter, the blocks are put together with the paste vessel 5 into a hermetic vessel 7. The inside of this vessel is then evacuated to vacuum. The pressure reduction is executed until air, etc. in the non-through-holes 11 appear as bubbles in the paste 6. The meshed immersion vessel 2 is taken out and is further put into a hermetic vessel 7 and is subjected again to the pressure reduction. At this time, the pressure reduction is executed until the non-through-holes 11 clogged by the Ag paste 6 appear.  Next, all of the ceramic sintered compact blocks 1 are rotated and are put into the meshed rotary vessel 4 of a rotation/vibration device 14 and the excess Ag paste 6 is removed by the rotation of an arrow 31 and the vibration in an arrow 32 direction.
Patent JP-H04202165-A (JP)
Title: Cyclobutenedione derivative and its production
Inventor: FU RYUJUN
IPC: C07C49/753
Filed: 1990-11-29
Abstract: NEW MATERIAL:Compounds of formula I [R1 is alkyl; Z is O or S; R2 is formulae IV-VII (C* is asymmetric C)]. EXAMPLE:1-(4'-Methylthiophenyl)-2-(1'-hydroxymethyl-2'-phenylethylamino)- cyclobutene-3,4-dione. USE:A non-linear optical material showing high non-linear characteristics and excellent in heat resistance, light resistance, shelf life and workability. PREPARATION:A cyclobutenedione derivative of formula II (X is Cl, Br, methoxy or ethoxy) is allowed to react with an amino acid derivative of formula III to obtain the objective compound of formula I.
Patent JP-H06179061-A (JP)
Title: Method for deciding component composition of continuously cast slab and rivet thereof
Inventor: YAMANAKA AKIHIRO
IPC: B22D11/16
Filed: 1992-12-14
Abstract: PURPOSE:To enable sampling of molten steel in unsolidified part of a cast by hitting a rivet having a hollow part reduced to the specific pressure to the cast slab having unsolidified part, catching the unsolidified molten steel into the hollow part and obtaining the component composition in the solidified material of the molten steel caught into the hollow part. CONSTITUTION:The rivet 10 is worked as the bar shape and the tip 12 thereof is sharpened so as to be penetrated easily into the cast slab and a stopper 14 is arranged at the other end so as not to be excessively penetrated. The rivet 10 has the hollow part 16 in the inner part, and the pressure in the hollow part 16 is generally reduced to the pressure lower than the sum of the molten steel static pressure at the tip of the hitting rivet and the atmosphere. When the rivet 10 is hit into the cast slab, the tip 12 is melted by the heat of the molten steel and the molten steel is flowed into the hollow part 16 by differential pressure between the hollow part 16 and the molten steel static pressure. The molten steel invaded into the hollow part 16 from the tip 12 of the rivet is solidified in there, and after casting, by executing chemical analysis or EPM analysis to the caught material in the inner part of the rivet 10, the molten steel components at the time of hitting the rivet and in the rivet hitting position is found.