baber/WOPTO huggingface dataset:
Patent JP-S58178850-A (JP)
Title: Piston ring for use in internal-combustion engine
Inventor: HAYASHI YOSHIMASA
IPC: F02F5/00
Filed: 1982-04-13
Abstract: PURPOSE:To obtain a uniform and sufficient surface pressure acted to the cylinder wall by a piston ring, by shaping the piston ring in a substantially U- shaped form, and disposing a spring at each of arcuate parts of the piston ring in an internal-combustion engine in which the cylinder and the piston are shaped to have an elliptic cross section or a cross section in the form of an elongated circle. CONSTITUTION:A piston ring 11 is divided symmetrically into two parts, and each of piston ring elements 11A is shaped in a little used form so that a proper surface pressure can be obtained when the piston ring 11 is fitted in a cylinder. At each of arcuate parts 14 located at the middle part of each piston ring element 11A, a spring receiving recess 15 is formed in a ring groove of a piston 12, and an expansion spring 16 is disposed in each of the recesses 15 in the manner that the opposite ends of the spring 16 are located at the part where the arcuate part and the straight part of the piston ring 11 are joined, so that the spring 16 is compressed toward its central part from the opposite ends when the piston ring 11 is fitted in the cylinder. With such an arrangement, it is enabled to obtain a uniform and sufficient surface pressure acted to the cylinder wall by the piston ring.
Patent JP-S62277364-A (JP)
Inventor: TOOMASU RERUTSUAA
IPC: G03F7/031
Filed: 1987-03-18
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-H07273542-A (JP)
Title: Integrated circuit
Inventor: NAGAI MANABU
IPC: H03B5/02
Filed: 1994-03-30
Abstract: PURPOSE:To provide the integrated circuit capable of activating an amplifier circuit at an operating point even when an oscillation circuit is used at a high speed and under a low voltage. CONSTITUTION:This integrated circuit is provided with an oscillation circuit 110 and an amplifier circuit 140 amplifying an output signal of the oscillation circuit 110 and providing an amplified signal, and also with a DC component eliminating circuit 120 to eliminate a DC component of the output signal outputted from the oscillation circuit 110 and a DC component addition circuit 130 adding a DC component in response to an operating point of the amplifier circuit 140 to the output signal whose DC component is eliminated by the DC component elimination circuit 120 and giving the result to the amplifier circuit 140. Since it is not required to decide a channel length and a channel width of MOS transistors(TRs) being components of the amplifier circuit 140 depending on the operating point of the oscillation circuit 110, it is easily operated the amplifier circuit 140 at its operating point when the oscillation circuit 110 is used at a high speed and under a low voltage.
Patent JP-S58190089-A (JP)
Inventor: NURUDEIN BUADOMA
IPC: H01S5/40
Filed: 1983-04-07
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-H02240641-A (JP)
Title: Photometric device by external photometric system
Inventor: YOSHIDA HIDEAKI
IPC: G02B7/10
Filed: 1989-03-14
Abstract: PURPOSE:To allow taking out of the information on the correct exposure control corresponding to the angle of view of photographing even with an external photometric system by changing the ratio to weight the photometric information by regions outputted from respective photometric regions in accordance with the information on the focal length of variable focus lenses. CONSTITUTION:The information Sd on the focal length indicating the moving quantities of variable power lenses 2, 3 is detected by a zoom encoder 9. The photometric information Sa to Sc by regions outputted from the external photometric element 12 through a condenser lens 11 are inputted to photometric circuits 13 to 15 and are thereby photoelectrically converted to photoelectric conversion signals SA to SC by regions which are inputted to an arithmetic circuit 10a. Only the photoelectric signal SA by regions from the photometric region where the angle of view is narrow is added when the variable power lenses 2, 3 are moved to a telephoto end. The signal SB from the intermediate photometric region is added when the lenses are moved in focus to the intermediate angle of view and further, half the signal SC from the photometric region where the angle of view is widest is further added when the lenses are moved to a wide end. The weighting processing by the respective specific weighting coeffts. and the addition processing are executed in this way and the information on the correct exposure control is outputted to an exposure control circuit 16. The correct exposure is obtd. in this way even if the external photometric system having no mechanically moving parts is applied to the zoom lens, etc.
Patent JP-S59187454-A (JP)
Title: Rotary brush
Inventor: NISHIKI MASAO
IPC: B24D13/10
Filed: 1983-04-08
Abstract: PURPOSE:To simplify the replacement of worn brush by removably fitting a brush which is formed in such a way that an elastic sheet through which a number of steel wire bodies are pierced is bent into a cylindrical form and resin is injected into its inside and outside forming the whole into an elastic body, to a rotary brush body. CONSTITUTION:After metal wire bodies 12 are pierced through an elastic sheet 11 from its back side, both ends are brought in contact with each other forming the sheet 11 into a cylindrical shape, and resin is injected into both the inside and the outside forming elastic layers 13a, 13b, thus, constituting a brush body 14. Within the brush body 14, a disk 17, which have an engaging part 15 consisting of a zigzag part on its periphery and a fitting hole 16 for the shaft of a motor driven tool on its center, is provided as a rotary brush body 18, fixing the brush body 14. Thereby, when a brush body is worn, only the brush body can be easily replaced, enabling the rotary brush body to be repeatedly used.
Patent JP-2000261024-A (JP)
Title: Optical device
Inventor: INTO JUNICHI
IPC: H01L31/10
Filed: 1999-03-09
Abstract: PROBLEM TO BE SOLVED: To realize a rectifier of an optical frequency level by providing a device for limiting at least a part of optical current flowing between metal a parts across a gap. SOLUTION: Light, incident on dipole antennas 1, 2, makes stationary waves thereon and generates a voltage and a current having an optical frequency of incident light on a gap 5 so as to attempt to flow a current through the gap 5. However, since a polarizing film 3 and a metal thin film 4 are provided, light emitted from an element 2 passes through the polarizing film 3 and the metal thin film 4 to reach an element 1. The component of the reflected light in the direction of a passing axis has its phase rotated by the metal thin film 4 and cannot pass through the polarizing film 3 and is reflected by the polarizing film 3. Ultimately, the reflected light is absorbed between the element 1 and the polarizing film 3 and the constitution of this device is such that the light cannot reach the element 2. Therefore, the device acts equivalent to an rectifier, to cause current to flow only in one direction.
Patent JP-H03262678-A (JP)
Title: Printer
Inventor: KUSUDA TOSHIAKI
IPC: B41J33/36
Filed: 1990-03-13
Abstract: PURPOSE:To prevent a fair printing using a used part or a fair printing with an unused part wound on the used side by a large amount by a method wherein after completion of a trial printing action, a control means controls a drive means on the basis of the judged result of a judging means so that the top part of an ink ribbon in an unused state is positioned on a head. CONSTITUTION:At first, an ink ribbon X that has been used once is taken up rearward and set, and a trial printing is conducted. After completion of the trial printing, while the ink ribbon X is fed forward, a sensor as a detection means 10 detects an unused part of the ink ribbon X. For example, when a light from a light emitting element 9a does not reach a light receiving element 9b, the appropriate part is judged to be unused. When the unused part of the ink ribbon X continues more than 100mm, a judging means 11 judges that the ink ribbon X comes into an unused state. Then, a control means 12 receives the judged result of the judging means 11, drives the drive means 13 so that a printing head is positioned on the top of the ink ribbon X in an unused state, and feeds the ink ribbon X rearward by 100mm.
Patent JP-H10242242-A (JP)
Title: Semiconductor manufacturing apparatus
Inventor: HIRANO MITSUHIRO
IPC: H01L21/68
Filed: 1997-02-28
Abstract: PROBLEM TO BE SOLVED: To avoid contaminating a wafer with particles in a wiring manufacturing apparatus having a load lock chamber by improving its shape to make it compact and light in wt. and avoiding forming a gas resident area when the chamber is purged with a gas. SOLUTION: A load lock chamber 69 coupled with a reactor 70 has a curved surface of at least a part of its wall, including near-curved faces, and at least a gas purge nozzle 76 is disposed at the corner to flow a purge gas along the wall surface from the nozzle. A bending force due to an external pressure exerted on the wall surface is greatly reduced to allow the thickness of the curved wall to be reduced, including near-curved faces, thereby reducing the wt. of the chamber 69 and avoiding forming a gas resident area by flowing the purge gas along the wall surface to keep a high cleanness in the chamber 69.
Patent JP-S61223109-A (JP)
Title: Method and apparatus for producing ultrafine particle
Inventor: INOUE HIDEAKI
IPC: F27B3/08
Filed: 1985-03-28
Abstract: PURPOSE:To grind ultrafinely, continuously and stably a raw material to be ground in an apparatus for melting a metal, etc. by an arc and pulverizing the same by an activated gas by rising a cylinder hearth contg. the raw material to be ground by a detected voltage value. CONSTITUTION:A nonoxidizing gas such as H2 or N2 is supplied through an inlet 11 into a body 1 of a grinding furnace and is discharged from a discharge pipe 2. A W electrode 10 at the top end of a water-cooled electrode 4 inserted into the furnace is directed toward the raw material A in the water-cooled cylinder copper hearth 5 contg. the raw material A such as metal, alloy or ceramics to be ground. The arc is generated to melt the material A and the material is ultrafinely ground by the gas such as H2 activated by the arc. The ground material is taken out of the pipe 2 together with the gas. The arc voltage increases when the surface of the material A is lowered by the grinding during such operation and therefore the voltage is detected and a motor 8 is run by a control device 9 to rise a piston 14 in the cylinder 5, thereby returning the top surface of the material A to the specified height. The piston 14 is rotated by a motor 13 during the operation so that the arc by the W electrode is formed uniformly over the entire surface of the material A.
Patent JP-S53147288-A (JP)
Title: Gathering of communication cables
Inventor: NISHIKAWA SEIICHI
IPC: H01B13/04
Filed: 1977-05-27
Abstract: PURPOSE: To form a communication cable of a supreme electrical performance simply by making a stranding pitch different mutually of stranded wires of plural number pieces having single stranding pitch and ten by gathering as one piece. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S57177173-A (JP)
Title: Electrophotographic developing device
Inventor: TAKEKIDA YOSHISUKE
IPC: G03G15/09
Filed: 1981-04-24
Abstract: PURPOSE:To obtain image quality in high resolution, by keeping the distance l between a developing sleeve and a photorecepter, and magnetic flux density (Gf) on the surface of a developing sleeve by a magnetic roller in the relations of l=mXGf(mm.) and m=1-3(mm./KG). CONSTITUTION:A magnetic roller 8 of an electrophotographic developing device is fixed and a developing sleeve 7 is rotated. A developing device 2 is located adjacently to a photorecepter 1, and a developer 3 in which ferrite carriers and insulation toners are mixed is contained in said device 2. A gap l between the sleeve 7 and the photorecepter 1 is arranged to have the relation of l=mXGf to a magnetic flux density Gf on the surface of the sleeve of main magnetic poles 11. Herein, m is a constant proportion and is selected from the constant of 1-3(mm./KG). By this way, image quality of high resolution is obtained.
Patent JP-S56157822-A (JP)
Title: Spectroscopic spectrum measuring apparatus
Inventor: IWASAKI HIDEO
IPC: G01J3/02
Filed: 1980-05-10
Abstract: PURPOSE:To perform a spectrum measurement of high resolving power by using a diode array, by inserting a filter crossing the whole optical path of a spectrometer. CONSTITUTION:An incandescent electric lamp 1 emits visible rays, while a heavy- water lamp 2 emits rays in the ultraviolet region. A concave mirror 3 converges the rays from the incandenscent electric lamp 1 and the heavy-water lamp 2 on an inlet slit 7. The rays having permeated through a sample 6 is passed through the slit 7 and made incident on a concave diffraction grating 8, where the rays are dispersed, forming the extinction spectrum of the sample 6 on a diode array 9. A rotary filter 5 is arranged so as to cross the whole optical path and rotated by means of a pulse motor 4.
Patent JP-S60223286-A (JP)
Title: Transmission circuit of telephone signal
Inventor: IITAKA EIJI
IPC: H04M1/72
Filed: 1984-03-31
Abstract: PURPOSE:To share a relay and a transformer and to miniaturize a transmission circuit of telephone signal by providing a contact switch to a channel switch circuit and the secondary side of the transformer respectively and connecting a PB signal transmission circuit and a holding tone transmission circuit at the primary side of the transformer via a switch. CONSTITUTION:Switch contacts 19a and 19b of a relay 18 which is switched and connected by the control of a controller 13 are provided to a channel switch circuit 14 which controls the connection of an extension telephone to a trunk line and to the secondary side of a transformer 15 respectively. Then a PB signal transmission circuit 11 and a holding tone transmission circuit 12 are connected to the primary side of the transformer via semiconductor switches 23, 26, etc. which are controlled by the controller 13. As a result, just a sigle unit of transformer 15 and relay 18 suffice to the circuits 11 and 12. This decreases the number of parts. In addition, the DC is cut by a capacitor 17 for the transformer 15 to miniaturize the iron core of the transformer 15.
Patent JP-H05262929-A (JP)
Title: Thermoplastic resin composition
IPC: C08L71/02
Filed: 1992-03-18
Abstract: PURPOSE:To provide the resin composition comprising a thermoplastic resin, a polyolefin resin, and a graft copolymer produced by grafting an N-substituted carbamic acid ester to an olefinic (co)polymer, having excellent impact resistance and good appearance, and free from delaminating. CONSTITUTION:A thermoplastic resin composition comprises (A) 5-95 pts.wt. of a thermoplastic resin selected from a polycarbonate resin, a polyester resin, a polyamide resin, a polyether resin and ABS resin (preferably polycarbonate resin, polyester resin, polyamide resin), (B) 95-5 pts.wt. of a polyolefin resin, the total amount of the components A and B being 100 pts.wt., and (C) 0.05-20 pts.wt. of a graft copolymer produced by grafting C2: 0.2-20wt.% of an N- substituted carbamic acid ester (preferably ethyl N-allylcarbamate, etc.,) of the formula (R<1> is H, 1-8C alkyl, 6-10C cycloalkyl, 6-10C aryl; R<2> is 1-8C primary or secondary alkyl, 6-10C aryl) to C1: 100wt.% of an olefinic (co)polymer having a mol.wt. of 5000-500000.
Patent JP-S63226911-A (JP)
Inventor: NAITO YASUYUKI
IPC: H01G4/40
Filed: 1987-03-16
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-S54153744-A (JP)
Title: Repairing welding of steel pipe
Inventor: IMAI KATSUYUKI
IPC: B23K31/00
Filed: 1978-05-26
Abstract: PURPOSE: To prevent changing residual stress in pipe into tensile stress and also to reduce the development of stress-corrosion cracking in coupled portion by making TIG welding with low heat quantity by regulating weld when welding for repairing in a welding process in which a refrigerator is introduced into the inside of pipe.  
     CONSTITUTION: In a water-cooling welding method, etc., for the inside of piping in chemical plants, atomic power equipments, etc., when making a local reparing welding or after welding, the length of the part of to be repaired is taken more than 60 mm and also the welding width is taken more than beveling width on the outside surface of weld. Then, TIG welding is made with a low heat quantity of 10 KJ. The method enables one to convert the residual stress inside pipe into compressive stress and thus to reduce the development of stress-corrosion cracking in coupled portion. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H06271932-A (JP)
Title: Production of high toughness steel
Inventor: TERADA YOSHIO
IPC: C21D8/00
Filed: 1993-03-23
Abstract: PURPOSE:To produce a steel sheet whose structure is refined and excellent in low temp. toughness, at the time of subjecting a slab contg. specified small amounts of Ti and N to reheating and rolling by executing the reheating of the slab under specified conditions. CONSTITUTION:A slab contg., by weight, 0.003 to 0.03% Ti and 0.001 to 0.006% N and formed from fine TiN is heated from the Ac1 transformation point of this steel to 900 to 1250 deg.C at the temp. rising rate of >=20 deg.C/min and is held to the same temp. for >=60min to refine the initial gamma grain size, and by the subsequent rolling or forging, the refining of the final structure is attained, so that the steel excellent in low temp. toughness can be produced.
Patent JP-H03262590-A (JP)
Title: Fresh water generating apparatus
Inventor: YAGI YASUYUKI
IPC: C02F5/08
Filed: 1990-03-13
Abstract: PURPOSE:To efficiently suppress silica scale by arranging the first reverse osmosis apparatus introducing water to be treated, the second reverse osmosis apparatus introducing conc. water and a means mixing a silica scale inhibitor with the conc. water. CONSTITUTION:The conc. water issued to the conc. water piping 14 of a reverse osmosis apparatus 12 is supplied to a mixer 18 and a silica scale inhibitor is dispersed in the conc. water through a scale inhibitor injection pipe 22. The mixed water is supplied to a conc. water reverse osmosis apparatus 20 to be separated into transmitted water and conc. water and both of them are respectively sent to a transmitted water piping 24 and a conc. water piping 26. The conc. water from the piping 26 is discharged out of the system and the transmitted water is supplied to a transmitted water piping 16 to be allowed to meet with the transmitted water from the reverse osmosis apparatus 12. The transmitted water from the reverse osmosis apparatus 12 and the transmitted water from the conc. water reverse osmosis apparatus 20 can be used and the coefficient of utilization of water is enhanced to 80-85% as compared with 60-65% due to a conventional method.
Patent JP-H06293932-A (JP)
Title: High strength heat resistant aluminum-base alloy and its production
Inventor: KATO AKIRA
IPC: C22F1/04
Filed: 1992-03-18
Abstract: PURPOSE:To produce a high strength heat resistant Al-base alloy having high temp. strength higher than that of the conventional Al-base alloy. CONSTITUTION:This alloy consists of a matrix phase, which has a composition represented by the general formula AlaNibCod(wherein in 50=<=a<=95 atomic %, 0.5<=b<=35 atomic %, 0.5<=c<=15 atomic %, and 0.5<=d<=10 atomic %) and is composed of fine crystalline substances, and fine grains to be dispersed, which are dispersed into the matrix phase and composed of AlNiY intermetallic compound or AlNiYCo intermetallic compound. A rapidly solidified Al-base alloy is optimized as fine crystalline substance, and, by applying hot plastic working to the rapidly solidified Al-base alloy, proper amounts of fine grains to be dispersed with high thermal stability are precipitated and dispersed in optimum shape into the matrix phase of fine crystalline substance and, as a result, deformation in the matrix phase at high temp. can be sufficiently prevented.
Patent JP-2000257291-A (JP)
Title: Dwelling house building structure in site of narrow entrance
Inventor: ONO TAKAHIDE
IPC: E04B1/00
Filed: 1999-03-10
Abstract: PROBLEM TO BE SOLVED: To provide a dwelling building structure suitable for common use of a car parking space and a garden as an approach. SOLUTION: A parking space 3 is provided on an entrance front 11 of a site 1 of a narrow entrance W, a dwelling building 2 is erected in a set-back manner of the distance of the parking space 3 in the depth D direction of the site 1, a joint lawn 31 and a block 32 withstandable against the car weight are provided in the parking space 3, and the parking space 3 is commonly used as an approach to the parking lot, a garden and the dwelling building 2.
Patent JP-H04277071-A (JP)
Title: Ultrasonic apparatus for cleaning fine hole
Inventor: SHIBANO YOSHIHIDE
IPC: B05B17/06
Filed: 1991-03-04
Abstract: PURPOSE:To connect the tip of the nozzle of an ultrasonic cleaning apparatus to one end of the fine hole of a work to be cleaned through an introducing pipe. CONSTITUTION:The fine hole formed in a work 6 to be cleaned can be made cleanable with the liquid supplied from the tip 3 of a nozzle 2 through an introducing pipe 10. The degassified liquid carried from the tip 3 of the nozzle 2 through the introducing pipe 10 by ultrasonic waves is discharged to the fine hole 7 of the work 6 to clean the fine hole 7 and the liquid after cleaning is recovered from the other end 9 of the fine hole of the work 6 and degassed by a degassing device and again returned to the nozzle 2 to be circulated.
Patent JP-S57178575-A (JP)
Title: Video signal processing system of optical character reader
Inventor: SHINODA MAMORU
IPC: G06V30/162
Filed: 1981-04-25
Abstract: PURPOSE:To completely eliminating the evil influence of variation in the quantity of light by varying a threshold value corresponding to the output variation of a photodiode array, and they converting the output of said array into a binary signal successively on the basis of said threshold value. CONSTITUTION:An analog subtracter 3 finds a difference between the output signal Esi of a photodiode element and the output signal Esi-1 of a photodiode elemet right before outputted from a storage device 5, and sends the difference to a controller 20 through a negative signal detector 4. When this difference is not negative, the controller 20 employs the signal Esi-1 as a relative reference value as it is. When the difference is negative, on the other hand, a relative reference value is determined according to whether the difference between a relative reference value Eref=Esi-1 and the output Esi is positive or negative. On the other hand, a comparator 17 compares the output Eref-Esi of an analog operating device 8 with a fixed reference value Edelta and when Eref-Esi>=Edelta, the Eref is fixed temporarily to maintain the state.