baber/WOPTO huggingface dataset:
Patent JP-H06281974-A (JP)
Title: Waveguide type optical directional coupler and its production
Inventor: NAKAMURA MASANORI
IPC: C30B29/30
Filed: 1993-03-25
Abstract: PURPOSE:To improve optical damage resistance and AC voltage impression characteristic by incorporating boron into the parallel lithium niobate single crystal optical waveguides on a heterosubstrate varying in basic compsn. from the lithium niobate and providing the coupling regions of the respective waveguides with optical modulating means. CONSTITUTION:The lithium niobate single crystal thin film is formed on the heterosubstrate 1 and the lithium niobate single crystal is also formed within the two parallel grooves previously formed on this heterosubstrate 1. The parts of the regions exclusive of the grooves of these films are polished away and the lithium niobate single crystal thin film is made to remain only in the grooves 4, to obtain the optical waveguide layers 2a, 2b. A silica buffer layer is thereafter formed on the coupling regions of the optical waveguide layers 2a, 2b and an aluminum film is deposited by evaporation thereon and is further worked into a prescribed shape to form the optical modulating means as electrodes 3a to 3d. The excellent guided light modulating performance and the long-term service life are obtd. by incorporating boron into the waveguide layers.
Patent JP-S57206879-A (JP)
Title: Composite display clock
Inventor: FUJIMORI HIROAKI
IPC: G04C3/14
Filed: 1981-06-16
Abstract: PURPOSE:To facilitate reading of a time at night by switching a digital display unit for a present time display when an illuminating lamp in the digital display unit is lighted. CONSTITUTION:When a switching signal A is inputted, a selection signal 26 is delivered from a switch controlling circuit 24 to a selection circuit 20 to select any one of an alarm, a calendar and a stop watch, which is displayed digitally 22 through a decoder 21. When a switching signal B is inputted, a time display signal formed by a time counter 15 is selected by the selection circuit 20 and a time is displayed digitally 22. Simultaneously, a lamp 25 is lighted for illuminating the digital display 22.
Patent JP-S61249881-A (JP)
Inventor: MOTODATE SHIYOUJI
IPC: B62K11/14
Filed: 1985-04-30
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-S5216488-A (JP)
Title: Nematic liquid crystal composite
Inventor: ARAI TADASHI
IPC: G09F9/30
Filed: 1975-07-31
Abstract: PURPOSE: Nematic liquid crystal composite, excellent in liquid crystal temperature range, threshold voltage, response speed, life, showing positive dielectric anisotropy is provided. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H05290632-A (JP)
Title: Al overhead wire
Inventor: AKASAKA HIROJI
IPC: H01B5/08
Filed: 1992-04-13
Abstract: PURPOSE:To provide an Al overhead wire by the use of which the presence of stranded cables can surely be recognized even after the construction work of extending or stretching the wire. CONSTITUTION:An Al overhead wire 1 is sandblasted at one part 1a of its surface along the longitudinal direction thereof. The stranded state of the wire can thus visually observed by the difference in lightness between the sandblasted surface and the non-treated surface. Since the sandblasted surface will not be eliminated, the sandblasted part is formed on the surface of the wire over a long period of time even after the construction work of extending or stretching the wire, so the stranded state can be visually observed even during maintenance work.
Patent JP-S5318475-A (JP)
Title: Detector for generation of slurry
Inventor: YOSHII KEIJI
IPC: B01D9/02
Filed: 1976-08-03
Abstract: PURPOSE: To make it possible to detect rapidly and surely the generation of slurry, by equipping the screen for separating the depositing crystal so that the filitrate and the crystal may flow down to the respective outflow pipes separatily, and by epuipping the thermometer inside the outflow pipe of the crystal so that the heat sensible part of the thermometer may contact with the crystal which is flowing down. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-H06304388-A (JP)
Title: Cleaner and washing machine using the same
Inventor: TANIGAWA MASANOBU
IPC: B01D29/62
Filed: 1993-04-20
Abstract: PURPOSE:To obtain a cleaning filter with a longer life by providing a spool filter to trap suspended substances in a solution and a metal screen filter on the entry side of the solution to ensure cleaning after use. CONSTITUTION:Metal screen filters 35a, 35b and 35c are arranged on the entry side of a solution of a spool filter 34 to trap suspended substances in the solution. The mesh size of the metal screen filters 35a, 35b and 35c is the same as or larger than that of the spool filter 34. The mesh size of the metal screen filters 35a, 35b and 35c laminated is made smaller gradually as it approaches the spool filter 34. One example is the metal screen filters 35a, 35b and 35c made of stainless steel.
Patent JP-H02272343-A (JP)
Title: Molecular ray sampling device
Inventor: TSUTSUMI YOSHITSUGU
IPC: G01N1/22
Filed: 1989-04-14
Abstract: PURPOSE:To obviate the degradation in the sensitivity at the time of an analysis by the reincidence of scattered gaseous molecules to a quadrupole mass spectrograph by providing a cooling surface having a low temp. on the wall surface part to be irradiated after the passage of the part near the detecting part of the spectrograph. CONSTITUTION:The remaining part of the free molecular flow which is not taken into the quadrupole mass spectrograph 10, is projected through the ionizing part 101 of the quadrupole mass spectrograph to the cooling surface 30 provided on the wall of a 3rd chamber. The cooling surface 30 is cooled by liquid nitrogen. The temp. of the cooling surface 30 is, therefore, extremely low and the incident gaseous molecules are mostly adsorbed, by which the desorption and scattering are obviated. The scattering of the gaseous molecules and the reincidence to the quadrupole mass spectrograph 10 during the analysis are obviated.
Patent JP-S5717884-A (JP)
Title: Electronic timepiece
Inventor: SUGANO FUMIO
IPC: H02P8/02
Filed: 1980-07-08
Abstract: PURPOSE:To prolong the driving time interval with minimum duty that can drive a step motor corresponding to the load by periodically changing the condition for selecting the output of circuit for induction voltage detection of the step motor coil. CONSTITUTION:By taking the time of aplying a driving signal to a coil 25 as an origin, a pulse of 0,25ms width having a different position in very 1ms up to 8ms- 12ms is outputted from the switching pulse generation circuit 14 and applied to a switching pulse selection circuit 15. The switching pulse selection circuit 15 is controlled by a counter 13 that is driven by a timer 12 outputting a reverse pulse in every 30sec., and periodically changes the signal selected by the switching pulse generation circuit 14. The voltage induced in a coil 25 is detected 26 by the timing of this selected signal and an up-down counter 33 that decides the driving pulse width is controlled in the dirction reducing the driving pulse width.
Patent JP-H11274598-A (JP)
Title: Magnetic field sensor
Inventor: SUZUKI HIDEYUKI
IPC: G01R33/09
Filed: 1998-03-20
Abstract: PROBLEM TO BE SOLVED: To provide a magnetic field sensor of high sensitivity, whose reluctance variation is isotropic and magnetic field can be detected isotropically to in-plane (two dimensional) magnetic field. SOLUTION: In a magnetic field sensor with a magnetic reluctance effect film 10 on a board 8 for magnetic field detection, the magnetic reluctance effect film 10 forms a pattern shape 11 drawn by a line and the pattern shape 11 has a curve part or a curve relevant part in at least a pattern shape to satisfy conditions of an expression: ΔH=(HKmax -HKmin )/-HKmin <=0.3. (In the expression, HKmax expresses in-plane maximum saturation magnetic field and HKmin expresses in-plane minimum saturation magnetic field of a magnetic reluctance effect film).
Patent JP-H02272730-A (JP)
Title: Dry etching method
Inventor: NISHIYAMA IWAO
IPC: H01L21/302
Filed: 1989-04-14
Abstract: PURPOSE:To stop the dry etching reaction of compound crystals at an arbitrary atom face by making use of the evaporation suppressing effect of reaction producing gas which is mixed in etchant gas by the amounts of saturated steam pressure. CONSTITUTION:A GaAs substrate 11 is put in a Ga face etching chamber 12, and chlorine etching is done with the mixed gas that GaCl3 gas 17 is mixed in Cl2 gas 16 by the quantity of saturated steam. At this time, the reaction product is not desorbed from the substrate 11 and remains there, and the etching stops. Next, the substrate 11 is shifted to an As face etching chamber 13, and when etched with the mixed gas of Cl2 gas 16 and AsCl3 gas 27, GaCl3 evaporates and AsCl3 is produced and it remains. When the substrate 11 is returned to the chamber 12 again, the remaining AsCl3 evaporates and at the same time it produces GaCl3 and stops. Hereby, the etching reaction of compound crystals can be stopped at an arbitrary atom face, and precise etching control becomes possible.
Patent JP-H02272508-A (JP)
Title: Optical coupling structure between optical fiber and photodetector
Inventor: NAKAMOTO HIROSHI
IPC: G02B6/42
Filed: 1989-04-14
Abstract: PURPOSE:To obtain sufficient optical coupling efficiency by mounting and fixing a pipe member in a V groove formed in a substrate and making light which is reflected and emitted by the ground surface atop of the optical fiber incident on the photodetection part of the photodetector in specific position relation with the V groove. CONSTITUTION:The optical fiber 11 whose tip is ground slantingly into a total reflecting surface is inserted and fixed in the pipe member 12 made of metal such as an SUS material which can be welded. The substrate 13 is made of, for example, a ceramic material which has the V groove 13a formed on its and metallic blocks 13 and 15 made of 'kovar(R)' plated with a material with excellent anticorrosiveness are fixed by brazing so as to fix the pipe member 12. Further, the photodetector 18 with a lens which converts signal propagated in the optical fiber 11 into an electric signal is fixed on the substrate 13. Consequently, light beam flux 26 which is made incident on a lens part 23 from above a photodetector main body 21 is converged by the lens part 23 and made incident on the photodetection part 22 with high optical coupling efficiency.
Patent JP-S59217321-A (JP)
Inventor: YONEDA YASUNOBU
IPC: C04B35/46
Filed: 1983-05-25
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-H10269087-A (JP)
Title: Remote network computer system
Inventor: YOSHIDA FUMINORI
IPC: G06F13/00
Filed: 1997-03-27
Abstract: PROBLEM TO BE SOLVED: To remotely actuate the respective computers of a network from the outside, to eliminate the disk of an individual client and to protect the computer from power failure abnormality. SOLUTION: A server system 4 and the client 12 are connected by a computer network. The respective clients 12 can be remotely actuated from the side of the server system 4 and further, the different clients 12 can be remotely actuated from the respective clients 12. When the client 12 is actuated, an actuation software incorporated in the client 12 automatically goes to the server system 4 to access and down-loads a software. When the power of the computer of this remote network computer system fails, the computer automatically detects power supply abnormality and sends the signals of contents that it is a power failure to an opposite side with access.
Patent JP-H03295807-A (JP)
Title: Oxide superconducting material and production thereof
Inventor: ADACHI SEIJI
IPC: C01G15/00
Filed: 1990-04-10
Abstract: PURPOSE:To obtain a Tl-contg. oxide superconducting material having specified crystal structures and >=100K critical temp. CONSTITUTION:This oxide superconducting material is a laminar compd. formed by alternately arranging Tl-O layers each based on rock-salt structure and Ba-Ca-Cu-O layers each based on perovskite structure. The Tl-O layers are alternately arranged single-atom and two-atom layers. This oxide superconducting material is obtd. by firing at <=850 deg.C.
Patent JP-S6446297-A (JP)
Title: Apparatus and method for self-ristriction of erasing memory cell using floating gate
Inventor: UINSUTON KEI EMU RII
IPC: G11C16/02
Filed: 1988-04-15
Abstract: PURPOSE: To self-limit the electrical erasure of a single transistor floating gate EEPROM cell by making a control gate additionally positive as well for the purpose of feeding back from a drain to a gate and similarly coupling the floating gate to positive. CONSTITUTION: A substrate 21 is grounded during an erasing operation. An erasing potential (VERASE) is then impressed on a source 23 and an amplifier 30 is coupled between the gate 22 and the terminal 28 of the control gate 27. The gain of the amplifier 30 is carefully adjusted, by which the correct feedback voltage is impressed on the terminal 28 with an increase in the drain potential during the erasing operation and the positive voltage in the floating gate 27 is coupled via the floating gate 26. As a result, a tunnel process decreases with the increase in the positive potential at the floating gate 26 until finally the tunnel process is stopped before the cell is put into the supererased state.  As a result, the disabling over the entire part of the array by the supererased state does not arise and the self-limitation of the electrical erasure of the single transistor floating gate cell is made possible.
Patent JP-H11292579-A (JP)
Title: Injecting material
Inventor: AKIMOTO FUMITOSHI
IPC: C04B7/28
Filed: 1998-04-06
Abstract: PROBLEM TO BE SOLVED: To obtain a material having short hardening time, small shrinkage after hardened and excellent adhesion property with aggregates and ballast, and improved resistance against cracks by using a cement containing calcium chloroaluminate mineral. SOLUTION: At least one kind of incineration ash selected from incineration ash of city garbage and incineration ash of sewage sludge is mixed with cement source materials such as lime stone, clay, silica stone, aluminum ash, bauxite and iron, and the mixture is calcined at 1200 to 1500 deg.C to obtain a clinker, which is then pulverized. To 100 pts.wt. of the pulverized clinker, 1 to 30 pts.wt. of gypsum is compounded to obtain a cement containing 10 to 40 wt.% calcium chloroaluminate mineral (C11 Al7 CaCl2 ). Then 100 pts.wt. of the obtd. cement is mixed, if necessary, 20 to 200 pts.wt. of an asphalt emulsion, 0.05 to 3 pts.wt. of a dewatering agent such as aluminosulfonic acid, 1 to 20 pts.wt. of an emulsified resin such as vinyl acetate resin, and 0.1 to 10 pts.wt. of a re-emulsifying type powder resin such as vinyl acetate.
Patent JP-2000284468-A (JP)
Title: Mask structure, exposure method and exposure device using this mask structure, semiconductor device manufactured by using this mask structure and production of semiconductor device
Inventor: CHIBA KEIKO
IPC: G03F1/22
Filed: 1999-03-31
Abstract: PROBLEM TO BE SOLVED: To make the life of a mask longer by preventing the contamination of a mask surface by deposits, dust, etc., and decreasing or eliminating the number of times of washing. SOLUTION: The X-ray mask structure consists of a holding frame 1 which consists of Si having a thickness of 0.625 mm and SiC of 2.0 μm in thickness which constitutes an X-ray permeable supporting film 2 and is deposited by CVD. A thin film of titanium oxide 6 is formed at a thickness of 200 nm as a photocatalyst on the supporting film 2 by resistance heating vapor deposition or EB vapor deposition. The deposition conditions for the titanium oxide 6 are so regulated that a crystal type turns to an anatase type. The mask structure further comprises an X-ray absorber 3 consisting of Ta formed by sputtering and a reinforcing body 4 consisting of 'Pyrex (R)' adhered to the holding frame 1 by anode joining.  Further, the opposite side of the mask surface is provided with a pellicle 8 to prevent the direct adhesion of dust, etc., on the mask, by which the number of washing times of the mask is decreased or the need for washing the mask itself is eliminated and the longer life of the mask may be achieved.
Patent JP-S5520447-A (JP)
Title: Density detection unit
Inventor: KIKUCHI TAKASHI
IPC: G01N9/28
Filed: 1978-08-02
Abstract: PURPOSE: To make a proper density inspection possible by providing a bubble extracting tube in the high tension-side lower-stage bubbler tube in the waste liquid concentrating equipment and reducing the influence on the bubbler tube for the internal pressure fluctuation of a tank and a vessel.  
     CONSTITUTION: Bubble extracting tube 6 is provided in bubble tube 2 to prevent bubbles, which are taken out from high tension-side lower-stage bubbler tube 2, from having a influence on low tension-side upper-stage bubbler tube 7, and bubbles emitted from tube 2 can be emitted independently, thereby preventing the influence on bubbler tube 7. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H11285710-A (JP)
Title: Composite work roll for cold rolling and its manufacture
Inventor: OTOMO SEIJI
IPC: B21B27/00
Filed: 1998-04-06
Abstract: PROBLEM TO BE SOLVED: To provide a composite work roll for cold rolling used for cold-rolling steel and its manufacturing method. SOLUTION: This roll is the composite work roll for cold rolling whose outer layer 2 is formed by a build-up method by continuous tinkering around a core material 1 consisting of cast steel or forged steel. The outer layer 2 consists of, by weight, 0.8-1.5% C, 0.3-1.5% Si, 0.3-1.5% Mn, 4.0-10.0% Cr, 1.0-8.0% Mo, 0.5-5.0% V and the balance Fe with inevitable impurities and is composed of the components so that the Ms point at the austenitizing temp. of 1,000-1,100 deg.C is 100-200 deg.C.
Patent JP-S5719769-A (JP)
Title: Image stabilizing method
Inventor: TAJIMA HATSUO
IPC: G03G15/06
Filed: 1980-07-09
Abstract: PURPOSE:To form always stable developed images by changing a developing bias AC voltage value according to the dwell time since a photoreceptor stops image forming operation until it starts the operation next, in a jumping phenomenon. CONSTITUTION:On repetition of charging and exposure, a photoreceptor produces multiple free carriers therein, and assumes a low resistance state, whilist if it is left standing for a long time in the dark, the free carriers annihilate, and high resistance is developed. Therefore, depending upon the dwell time of the photoreceptor, and the number of copied sheets, the latent image potentials of the photoreceptor and the densities of developed copies differ. The AC bias voltage (peak value) of the voltage values corresponding to the dwell times t0, t2 by the outputs from a timer circuit for controlling peak value voltage and the signals S0, S1-, S1'- according to the number of copied sheets is applied to a developing sleeve. Thereby, the images free from any change in image densities and photographic fogs are formed at the continuous copying.
Patent JP-H07282786-A (JP)
Title: Halogen lamp bulb for automobile
Inventor: YOSHIDA TATSUMI
IPC: H01K9/08
Filed: 1994-04-08
Abstract: PURPOSE:To form a halogen lamp bulb for an automobile without giving dazzle to an automobile on the opposite lane due to causing a part exceeding prescribed illumination limit by realizing a bright head lamp with efficiency improved. CONSTITUTION:To a halogen lamp bulb 1 for an automobile, having a shape interchangeable with a H4 lamp bulb and high efficiency, a coil length CL1 and a coil diameter CD1 are made 3.8+ or -0.3 mm and 1.7+ or -0.1mm respectively in a travel filament 3, and a coil length CL2 and a coil diameter CD2 are made 4.8+ or -0.3mm and 1.4+ or -0.1mm respectively in a low filament 4. The shape of a spot, created by these filaments 3 and 4 and a reflecting mirror, is contracted to become a shape wherein illumination does not reach a measured point prescribed by the maximum value, and illumination at a measuring point is made within a prescribed value to solve the problem.
Patent JP-H03294097-A (JP)
Title: Method for connecting flux cored wire
Inventor: OKAZAKI ISAO
IPC: B23K35/40
Filed: 1990-04-11
Abstract: PURPOSE:To facilitate the connection of the flux cored wire and to improve working efficiency by melting the cut surfaces of the wire by a TIG arc welding method, then energizing the wires while pressing the wires from both sides. CONSTITUTION:The wires to be connected to each other are cut in the state that fluxes 2 face each other on the outside of the terminals of the wires when the connecting ends of the wires are cut by a tool. Molten metallic balls 5 are formed at the cut terminals and the outer side faces thereof are coated with molten slag 6 when the respective cut parts of the two wires are heated and melted by the TIG welding method. The two molten metal balls are crushed and welded to each other and molten projecting parts 7 are formed around the welded part if the respective molten parts of the two wires are brought into contact with each other and are pressurized from both sides. The connected flux cored wire is produced by removing the projecting parts 7.
Patent JP-H11267970-A (JP)
Title: Coordinate positioning device of wafer
Inventor: SAKO YAMATO
IPC: B24B49/02
Filed: 1998-03-24
Abstract: PROBLEM TO BE SOLVED: To manage the thickness distribution of a wafer and the thickness distribution of an oxide film by providing a controlmechanism for transmitting an instruction for rotating a rotating shaft by the portion of the rotating angle calculated by an arithmetic mechanism, and rotating the rotating shaft according to the instruction of the control mechanism. SOLUTION: The rotating direction of a rotating shaft 32 is preliminarily determined, and the rotating shaft 32 is rotated once. A sensor 36 transmits the distance (1) from the sensor 36 to the outer edge of a wafer and the coordinate of the outer edge of the wafer on the line connecting the sensor 36 to the axial center O of the wafer are transmitted to a ROM, and a CPU instructs the rotation of the rotating shaft 32 so that the outer edge of the wafer is situated on the line connecting the sensor 36 to the axial center O of the wafer in the position where the value of (1) shows the maximum value to rotate the rotating shaft 32.  Since the position coordinate of a thickness measuring instrument 38 for the wafer or a film thickness measuring sensor 37 for the wafer is determined as the coordinate of the axial center O as the origin when the position of the wafer is determined, the thickness of the wafer and the thickness of an oxide film are transmitted to the ROM together with the coordinate, and stored in the CPU.
Patent JP-H11268272-A (JP)
Title: Piezoelectric oscillator unit for driving ink jet recording head and manufacture thereof
Inventor: KITAHARA TSUTOMU
IPC: B41J2/055
Filed: 1998-03-23
Abstract: PROBLEM TO BE SOLVED: To suppress deformation due to environmental temperature or firing to the utmost by arranging a conductive layer and an inner electrode at a substantially constant interval from one end to the other end of a piezoelectric oscillator. SOLUTION: One and the other inner electrodes 10, 11 are arranged in the oscillatory region of a piezoelectric oscillator 2 while being overlapped in the central region. They are laminated, at a constant interval, in the piezoelectric material 12 such that one end is exposed on one side and the other end is buried in the piezoelectric material 12. Exposed ends of the inner electrodes 10, 11 conduct, respectively, with a common electrode 5 and a segment electrode 6. A conductive layer 13 is formed, at substantially same interval as that of the inner electrodes 10, 11 in the oscillatory region, in the nonoscillatory region of the piezoelectric oscillator 2 while being overlapped equally 12 the central region with the opposite side ends being buried in the piezoelectric material 12.  Since the piezoelectric material 12 is made homogeneous entirely and difference of thermal expansion due to temperature fluctuation is equalized entirely, cracking due to warp or thermal stress is eliminated.