baber/WOPTO huggingface dataset:
Patent JP-H1138331-A (JP)
Title: Optical depolarizer and method for depolarizing light of light source
Inventor: PAISHENG SHEN
IPC: G02B26/00
Filed: 1998-04-30
Abstract: PROBLEM TO BE SOLVED: To average beams having a different polarizing states by dividing an input light beam into two beams, introducing one beam from among the two to a circulating loop and synthesizing a loop output with the input beam. SOLUTION: A light beam from a light source is inputted to a partial reflection mirror 4. One part of the input beams is reflected by the partial reflection mirror 4 and an output beam 6 is formed. The other part of the input beams is transmitted through a mirror 8 through the partial reflection mirror 4. The mirror 8 reflects a circulating beam to a mirror 10, then, it is transmitted through a birefringent element 12 and reflected to a mirror 14. The circulating beam returns to the partial reflection mirror 4. Namely, a light beam interrupting the partial reflection mirror 4 is divided into two beams. One beam is transmitted through the partial reflection mirror 4 and becomes a part of the output beam 6 of the depolarizer 2. The other part of the circulating beam is reflected by the partial reflection mirror 4 and becomes a part of the circulating beam.  Next, the output beam of the depolarizer 2 is synthesized with the input beam and the circulating beam.
Patent JP-H08310994-A (JP)
Title: Racemization of optically active alpha-methylalkanedicarboxylic diester
Inventor: URAGAKI TOSHITAKA
IPC: C07B55/00
Filed: 1995-05-18
Abstract: PURPOSE: To easily and practically obtain a racemic form of the subject diester, useful as e.g. an intermediate for medicines, by reaction of a specific diester with a basic compound. CONSTITUTION: The objective racemic form is obtained by bringing (A) an optically active α-methylalkanedicarboxylic diester of the formula (C* is an asymmetric carbon atom; R1 is a 1-6C alkyl or benzyl; R2 is an alkyl or benzyl; (n) is 1 or 2) (e.g. dimethyl α-methylsuccinate) into contact with (B) a basic compound (e.g. sodium methoxide). It is recommended that the reaction be carried out, for example, at <=100ppm in water content at a molar ratio B/A of (0.001-1) at 18-100 deg.C.
Patent JP-S5548805-A (JP)
Title: Tone arm damper mechanism
Inventor: OONISHI JIYUNICHI
IPC: G11B3/32
Filed: 1979-09-19
Abstract: PURPOSE: To suppress the resonance of the both direction with a single damper mechanism, by bearing the first rotating body with the bearing possible for horizontal direction of rotation, bearing the second rotating body possible for vertical direction of rotation on it, and providing a concave allocating the damper fluid on the second rotating body.  
     CONSTITUTION: At the lower part of the shaft fixed with the stand 2, the first rotating body 3 turned horizontally is provided in rotation free, this rotating body is formed in a cup shaped concave, and oil storage being the second rotating body is placed inside 31 of it. Next, the damper adjusting ring 6 is fitted at the upper part of the rotating shaft 1 so that it can not be moved. The ring 6 forms the nail 62 in ring shape in the end of the insertion cylinder 61 of the rotating shaft 1, and when the ring 6 is pressed in the shaft 1, it is fixed in the first cut groove 11 placed at the upper part of the shaft 1, it is closely fitted to the rotary shaft, and it can not easily be turned. Further, the oil storage 9 being the second rotating body is placed at the external circumference of the insertion cylinder 61 of the ring 6 to form the circular groove 92 locating the damper fluid 91 at the upper part, and the lower part bears the main body and it can be turned vertically. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H09305710-A (JP)
Title: Binarization device
Inventor: TAMAGAWA MITSUAKI
IPC: G06K9/38
Filed: 1996-05-15
Abstract: PROBLEM TO BE SOLVED: To perform the proper binarization by using a logical difference means to acquire the logical difference image data between the expanded AND image data obtained by an AND means and the contracted binary image data obtained by a binarization means. SOLUTION: An AND device 19 inputs the horizontal and vertical binary image data Dh and Di obtained by the 1st and 2nd binarization devices 16 and 17 respectively and calculates an AND of both data Dh and Di to output the expanded AND image data Dk . A logical difference device 20 calculates and outputs the logical difference image data Dl between the data Dk obtained by the device 19 and the contracted binary image data Dj obtained by a 3rd binarization device 18. The data Dl can acquire the characters having open holes, so that the characters can be easily extracted and recognized at the next stage of the binarization processing. Furthermore, the highly accurate binarization processing is attained for the extraction and recognition of characters.
Patent JP-H11352413-A (JP)
Title: Endoscope
Inventor: IWASAKI SEIJI
IPC: A61B1/00
Filed: 1999-04-27
Abstract: PROBLEM TO BE SOLVED: To reduce a diameter of an insertion tip part of an endoscope provided with a photographing unit using a prism. SOLUTION: In an endoscope provided with an object lens system 22, a solid photographing element 29 arranged almost in parallel with the optical axis of the object lens system 22, and a prism 28 deflecting the optical axis of the object lens system 22 almost in the orthogonal direction to form an image of the object lens system 22 on the solid photographing element 29, an incident plane of the prism 28 is formed small to the prism-facing plane of a glass member 35 arranged on the incident side of the prism 28.
Patent JP-H0387044-A (JP)
Title: Compound semiconductor device
Inventor: WADA ATSUSHI
IPC: H01L21/76
Filed: 1990-05-10
Abstract: PURPOSE:To contrive an increase in the integration of a device by a method wherein carriers to leak from a compound semiconductor crystal active layer are completely interrupted by an interelement isolation groove and a dielectric layer or a depletion layer in the groove and the leak of the carriers at a deep place in the active layer is inhibited by the existence of a heterointerface. CONSTITUTION:An AlxGa1-xAs (the x is 0.3 to 0.4) layer 22 and a GaAs layer 23 are deposited on a GaAs substrate 21 in the order of the layers 22 and 23 by a organometallic method and a heterointerface 24 is formed. A CVD-SiO2 film 25 is superposed, an RIE is performed using CF4+CHF3 and an opening 25A is formed. An RIE is performed using CCl2F2+He and an isolation groove 26 is selectively formed in the layer 22. A mask 25 is removed and ohmic source and drain electrodes 27 and 28 and a Schottky gate electrode 29 are formed to complete a compound semiconductor device. A polycrystalline GaAs insulator layer can be selectively grown in the groove 26 utilizing the mask 25A.
Patent JP-S5548274-A (JP)
Title: Hexavalent chromium reducing agent and reduction
Inventor: ARIGA KAZUO
IPC: C01G37/02
Filed: 1978-09-30
Abstract: PURPOSE: The title reducing agent, capable of reducing hexavalent chromium in waste liquor into trivalent chromium Cr (III) and precipitating and separating Cr  (III), obtained by freezing and thawing a finely divided slurry of ferrous hydroxide  (F) to settle granular F, and by concentrating the slurry.  
     CONSTITUTION: A ferrous salt, e.g. ferrous sulfate, is neutralized with an equivalent amount of an alkali hydroxide to form green precipitates of ferrous hydroxide. The resulting slurry is frozen in an airtight state to form ice crystals from the water in the slurry. The frozen slurry is then thawed at room temperature and washed with water to give a ferrous hydroxide slurry, which is added to a hexavalent chromium waste liquor to reduce the chromium to the trivalent chromium Cr (III). The treated liquor is led to a magnetic separation tank to separate and remove most of the chromium and iron ions, as a sludge. The remaining liquor is returned to the reducing tank and reused continuously. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H05315245-A (JP)
Title: Formation method of interconnection for semiconductor element
Inventor: YAMAMOTO SHINSUKE
IPC: H01L21/338
Filed: 1992-05-13
Abstract: PURPOSE:To provide the formation method, of an interconnection for a semiconductor element, wherein a photolithographic method and a lift-off method are used. CONSTITUTION:An SiO2 film 22 is formed on a substrate 20; a PMMA resist film 28 which partitions a first opening part 26 by means of an overhang-shaped sidewall part 24 is former on the SiO2 film 22. A metal film 30a is formed by a vapor deposition operation from the normal-line direction of the first opening part 26; third opening parts 34 (34a, 34b) are formed in the SiO2 film 22 by utilizing two second parallel opening parts 32 (32a, 32b) which are formed between the metal film 30a and the resist film 28. After that, a metal for interconnection use is vapor-deposited, by using an anisotropic vapor-deposition method, on the face of the substrate which is exposed in the third opening parts 34. In succession, an excess film is removed by a lift-off method. Thereby, two mutually parallel interconnections 36 (36a, 36b) are left and formed.
Patent JP-H02300547-A (JP)
Title: Continuously variable transmission friction drive gear for electrical discharge machine
Inventor: SHODA KAZUO
IPC: B23H7/00
Filed: 1989-05-15
Abstract: PURPOSE:To adjust the moving shaft feed quantity per unit angle of a feed motor minutely and change the feed speed of a moving shaft continuously by bringing a cylinder part fixed at the moving shaft of a static pressure bearing into frictional contact with a conical part driven by a feed motor. CONSTITUTION:When a cylinder part 13 fixed at the moving shaft 12 of a static pressure bearing 10 is brought into contact with the conical part 22 of a feed gear 20, and a feed motor 21 is rotated clockwise or anticlockwise, the cylinder part 13 is moved by the specified distance to the left or right. when the feed motor 21 and the conical part 22 are moved in the axial direction of the feed motor 21 and that to the left on this side so as to rotate the motor 21 while maintaining the friction state between the cylinder part 13 and the conical part 22, the moving distance of the cylinder part 13 becomes long as well as the moving speed of the moving shaft 12 becomes fast. In the reverse state, the moving distance of the cylinder part 13 becomes short and the moving speed of the moving shaft 12 becomes slow. Furthermore, the moving speed of the moving shaft 12 can be changed continuously because of the friction between the cylinder part 13 and the conical part 22.
Patent JP-S5644705-A (JP)
Title: Direct reducing method of ore in converter
Inventor: ONO SHIGEYUKI
IPC: C21B13/00
Filed: 1979-09-20
Abstract: PURPOSE: To produce steel directly from iron ore within a converter by adding and blowing iron ore, reducing carbon material and oxygen gas at the specific ratios during steel making refining process with the converter.  
     CONSTITUTION: Iron ore, coal, coke or charcoal as a reducing agent are added at fixed ratios after the time when decarbonization reaction progresses forward and backward and leaves an oversaturated state of [C] on progression of desiliconization reaction and rising of the temperature of the steel bath after the start of the steel making refining through oxygen blowing in a converter. These raw materials are added in the state of mixed pellets, or separately from the furnace top or by making use of a sublance and furnace bottom fuyeres. In proportion to the rate of the addition of these raw materials, the blowing by pure oxygen is performed to reduce Fe 2 O 3  in the iron one into steel. The addition amounts of this case are made 0.3W 1.5t of coal based on 1t of the iron ore, 0.2W1.0t in the case of charcoal and 10W 600Nm 3  of oxygen. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-S5911670-A (JP)
Title: Semiconductor integrated circuit device
Inventor: TAKADA TOMOJI
IPC: H01L21/822
Filed: 1982-07-12
Abstract: PURPOSE:To realize a circuit containing a memory cell with high density, and to optimize the areas of cells utilized at all times by forming a general-purpose cell exclusive for the memory cell in a region, which is not used yet, under a wiring region and forming a parent wafer so that said cells and general-purpose cell regions exclusive for a logic are arranged alternately. CONSTITUTION:General-purpose cell arrays 14 exclusive for a memory are disposed in regions as the wiring regions among general-purpose cell arrays 11 exclusive for a logic. Wirings 131 are passed on the general-purpose cell arrays 14 exclusive for the memory in a region A in which there are a large number of logic cells, and wirings 132 are passed on the general-purpose cell arrays 11 exclusive for a logic in a region B in which there are a large number of the memory cells. When the regions of the general-purpose cell arrays 14 exclusive for the memory are all regarded as the wiring regions, the arrays can be regarded as the same chips. An element density in the region B in which the memory cells are dense depends upon a ratio of the areas of the general-purpose cell arrays 11 exclusive for a logic to the areas of the general-purpose cell arrays 14 exclusive for the memory, but the element density of the device is approximately half that of conventional devices improved when the ratio is 1.
Patent JP-H07325117-A (JP)
Title: Digital flicker meter
Inventor: ICHIHARA MASABUMI
IPC: G01R19/00
Filed: 1994-06-02
Abstract: PURPOSE:To enhance accuracy in the measurement without prolonging the data processing time by differentiating the sampling time for effective voltage value from that for subjecting the flicker fluctuation voltage to frequency analysis. CONSTITUTION:The digital flicker meter comprising an A/D converter 1 and a personal computor 2 samples voltage effective values from a power system and analyzes the frequency thereof to determine a flicker fluctuation voltage DELTAVn which is then employed, along with a flicker sensitivity coefficient an, in the measurement of a flicker management index DELTAV10 as shown by a formula. In this regard, the sampling time for effective voltage value is differentiated from that for frequency analyzing the flicker fluctuation voltage DELTAVn. Consequently, the sampling point for frequency analyzing the flicker fluctuation voltage DELTAVn can be superposed on the sampling point of effective voltage value and when the effective voltage value lowers in a high flicker frequency region, it can be corrected using a predetermined correction coefficient.
Patent JP-S5821759-A (JP)
Title: Dustproofing device for electrophotographic copying machine
Inventor: MIYOUCHIN HISASHI
IPC: G03G15/04
Filed: 1981-07-31
Abstract: PURPOSE:To prevent sticking of toners and dust on a lamp or a filter to be provided between the lamp and a body to be irradiated by utilizing the unequal AC electric fields. CONSTITUTION:The 1st electrodes 13a, 13b to be grounded and the 2nd linear electrodes 15a, 15b connected to an AC power source 14 are embedded alternately in a dustproof filter 12 to generate the unequal AC electric fields. Electrically charged particles Q of toners and dust oscillate between points A and B along the curved electric force lines C. The particles Q receive centrifugal forces at a right angle to the lines C at every half period of the oscillations and receive average centrifugal forces Fc. The particles P receive the strong repulsive forces in the electric field directions at the point A near the electrodes and receive weak attraction forces at the point B further from the electrodes. As a result, said particles P receive average repulsive forces Fg in the direction tangential to the lines C. The particles receive the combined repulsive forces Er in the direction parting from the electrodes as the resultant forces of the Fe and the Fg, by which the electrostatically charged toners and dust are detached from the filter 12.
Patent JP-H11316883-A (JP)
Title: Landslide detector
Inventor: ANDO NAOKO
IPC: G08B21/00
Filed: 1998-04-30
Abstract: PROBLEM TO BE SOLVED: To obtain information according with the degree of landslide of a slope land. SOLUTION: An alarm transmission part 1 and a maintenance command transmission part 2 are provided in one detection pole 3. The detection pole 3 is installed on the slope land with a regular attitude. The alarm transmission part 1 and the maintenance signal transmission part 2 are angle sensors, and the alarm transmission part 1 is so set that it outputs a signal in the case of >=30 deg. inclination, and the maintenance command transmission part 2 is so set that it outputs a signal in the case of >=15 deg. inclipation. The detection pole 3 is inclined in accordance with the degree of landslide of the slope land, and the maintenance command transmission part 2 outputs landslide prediction information in the case of >=15 deg. inclination, and the alarm transmission part 1 outputs landslide report information in the case of >=30 deg. inclination.
Patent JP-H07322820-A (JP)
Title: Roasting and deodorizing apparatus
Inventor: IKEDA SATOSHI
IPC: A23F3/06
Filed: 1994-06-02
Abstract: PURPOSE:To provide a roasting and deodorizing apparatus having lowered apparatus cost and energy cost and easy maintainability. CONSTITUTION:This roasting and deodorizing apparatus is provided with a roasting oven 2 charged with a raw material 3 to be roasted, a heat- accumulation layer 19 placed outside of the roasting oven and heating the oven, a combustion furnace 1 provided with a burner 10 to supply hot gas 7 for heating the heat-accumulation layer 19, a mechanism to form a mixed gas 18 by mixing the hot gas 7 with a harmful malodor component 4 generated from the raw material in the roasting oven, a combustion catalyst 17 to burn the harmful malodor component in the gas by contacting with the mixed gas and mechanisms 20, 21, 22, 23 to supply the high-temperature treated gas 6 subjected to the combustion treatment to the heat-accumulation layer 19 and/or a gas flow before the combustion catalyst.
Patent JP-S63285658-A (JP)
Title: Circuit for preventing collision of data on bus
Inventor: ABO KENICHI
IPC: G06F3/00
Filed: 1987-05-19
Abstract: PURPOSE:To improve the bus availability by inhibiting the transmission of data onto a bus for a period of a 1/2 clock cycle from a time point when a bus application permitting signal is received. CONSTITUTION:A novel control clock of a phase opposite to a clock is supplied to a timing production means 17 from a terminal B and the means 17 transmits an output permission timing signal (7) after a 1/2 clock cycle based on a bus application permitting signal supplied from a terminal C. Then a data transmission period production means 18 can transmit the bus output permitting signals (1) for a period of the multiple of integer as long as the 1/2 clock cycle based on the signal (7), the clock supplied from a terminal A and the bus application permitting signal. Thus a bus fight prevention cycle is set at a 1/2 clock cycle. As a result, the data can be transferred at high speed.
Patent JP-2000312809-A (JP)
Title: Filter material
Inventor: OMORI TAIRA
IPC: D06M101/16
Filed: 1999-04-28
Abstract: PROBLEM TO BE SOLVED: To obtain outstanding deodorizing properties by fixedly attaching a deodorizing organic compound and a deodorizing inorganic compound such as a polyamine compound or a hydrazide compound to the surface of fibers constituting a filter material through a synthetic resin binder, in the filter material formed of a synthetic fiber non-woven fabric. SOLUTION: The filter material for separating/capturing fine solid particles afloat in the air, with a capability of reliably deodorizing the smell of ammonia or hydrogen sulfide and a tobacco odor, is formed of a synthetic fiber non-woven fabric. In this case, at least one kind of a deodorizing organic compound and one kind of a deodorizing inorganic compound selected from a polyamine compound and a hydrazide compound is fixedly attached to the surface of fibers constituting the filter medium through a synthetic resin binder. The ratio of the deodorizing inorganic compound to the non-woven fabric is preferably within the range of 0.1-30% owf. The ratio of the synthetic fiber binder to be applied to the non-woven fabric is within the range of 0.05-20% owf. Thus it is possible to obtain the outstanding deodorizing effect.
Patent JP-S5745280-A (JP)
Title: Wiring method of complementary insulation gate type field effect semiconductor device
Inventor: DAZAI FUMIHIRO
IPC: H01L29/06
Filed: 1980-09-01
Abstract: PURPOSE:To reduce the wire capacity by forming a conductive channel on an oxide film on a guard region after a diffused layer is arranged on the surface of a well region under the conductive channel in the conductivity type thereto. CONSTITUTION:A P type well region 2, N<+> type source and drain regions 7 and 8, a gate electrode 9, a first guard region 11 surrounding an  N channel IGFET 10 and a second guard region 12 are formed separately. Then, an N type diffused layer 15 is formed on a field portin of the N channel IGFET 10 separated from the first guard region 11. A conductive channel 17 made of deposited aluminum and polysilicon is formed on the layer 15. Thus, the layer 15 is kept from electric connection making it floating.
Patent JP-S611367-A (JP)
Title: Method of color formation of fish-paste product and color former
Inventor: KOTANI AKIJI
IPC: A23L17/00
Filed: 1984-06-12
Abstract: PURPOSE:To impart a color formation effect, having improved flavor and light resistance, and partially resembling D-xylose to a fish-paste product, by adding 2-keto-hexonic acid or a derivative thereof in a specific proportion thereto. CONSTITUTION:2-Keto-hexonic acid expressed by the formula (M is amino acid having added H, Na, K, NH4, 1/2Ca, 1/2Mg or hydrogen ion) or a derivative thereof in an amount of 1.0% or below is added to a fish-paste product. A pH adjustor, e.g. polymerized phosphate, elasticity enhancer, edible surfactant, e.g. lecithin, are used together if necessary.
Patent JP-S5246486-A (JP)
Title: Fireproof cable
Inventor: SUZUKI HIROSHI
IPC: H01B7/22
Filed: 1975-10-08
Abstract: PURPOSE: By establishing the metallic shielded layer of a metallic tape, the deterioration of electrical characteristics such as insulation resistance, withstand voltage or the like is lessen at the time of combustion. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H11290169-A (JP)
Title: Merchandise display stand
Inventor: SHIBATA NORIAKI
IPC: A47F5/10
Filed: 1998-04-14
Abstract: PROBLEM TO BE SOLVED: To prevent fences removed from a removable-fence type merchandise display stand from being lost and not available when necessary. SOLUTION: Fences 5 are supported against the outer peripheral edges of the upper surface 2 of a trapezoidal showcase main body 1 and the upper edge of each side face 3 of the main body 1 in such a way as to freely swing between upright positions and hanging positions in which they are rotated 180 deg.C. Pipes 12 which are located on the same axis whether both of the fences 5 are in the upright positions or the hanging positions are secured to the side edges of the adjacent fences 5. A pin 13 having a locking part 14 at one end communicated to each of the pipes 12 when the fences 5 are in both of the positions is provided.