baber/WOPTO huggingface dataset:
Patent JP-H11232664-A (JP)
Title: Optical recording/reproducing apparatus
Inventor: TAMURA TAKEO
IPC: G11B7/09
Filed: 1998-02-13
Abstract: PROBLEM TO BE SOLVED: To provide an optical recording/reproducing apparatus which has a predetermined defocus margin and is highly reliable to a change of a use environment temperature, etc. SOLUTION: A maximum amplitude voltage detection means 6 for detecting a maximum amplitude voltage of a focus error signal and a bias voltage generation means 7 for generating a bias voltage of a constant ratio to the maximum amplitude voltage are provided, so that the bias voltage of the constant ratio to the maximum amplitude voltage varying for each optical recording/ reproducing apparatus is generated. The bias voltage generation means 7 includes a memory means which estimates a range of variations of the maximum amplitude voltage beforehand, sets a plurality of bias voltages corresponding to the range stepwise and stores the voltages beforehand, and selects one bias voltage from the plurality of bias voltages stored in the memory means so that a nearly constant defocus amount is applied at Near and Far sides with respect to the maximum amplitude voltage.
Patent JP-2000232157-A (JP)
Title: Semiconductor device and its manufacture
Inventor: YAMAGISHI NOBUHISA
IPC: H01L21/768
Filed: 1999-02-09
Abstract: PROBLEM TO BE SOLVED: To suppress the occurrence of defective connection in multilayered wiring during simultaneous works of shallow contacts and deep contacts by forming metallic plugs on the wiring in an area where an insulating film is thick. SOLUTION: After a metallic film is formed on first wiring 16, metallic plugs 22 are formed by dry etching by only performing resist patterning on the low-stage first wiring of a step. Then an interlayer insulating film 18 is formed and subjected to CMP. In etching the insulating film, the etching depth is relieved in deep contact sections, because the metallic plugs 22 having desired film thicknesses are formed in advance as the lower layers of openings. Therefore, deep contacts can be formed without causing defective openings by appropriate etching depths and etching time. Since the etching time is shortened, in addition, shallow contacts can be etched without punching through TiN. Therefore, the occurrence of defective connection in multilayered wiring can be suppressed during simultaneous works of shallow contacts and deep contacts.
Patent JP-H06244498-A (JP)
Title: Laser diode
Inventor: HAYASHI SHIGEO
IPC: H01S5/00
Filed: 1993-02-22
Abstract: PURPOSE:To provide a low-threshold blue-range laser diode by causing the refractive indices of its photowaveguide layers to change continuously, by the use of superlattices whose layer width changes gradually. CONSTITUTION:The title laser diode has a chlorine-doped n-type ZnS0.07Se0.93 photoconfinement layer 2, a chlorine-doped n-type ZnSe-ZnS0.07Se0.93 gradually- width-changing superlattice photowaveguide layer 3, a Zn0.8Cd0.2Se active layer 4, a nitrogen-doped p-type ZnSe-ZnS0.07Se0.93 gradually-width-changing superlattice photowaveguide layer 5, and a nitrogen-doped p-type ZnS0.07 Se0.93 photoconfinement layer 6, provided on an n-type GaAs substrate 1. Besides, it has an Au electrode 7 on the photoconfinement layer 6, and an In electrode 8 on the rear of the GaAs substrate 1, and has an optical resonator by a cleavage plane mirror on the end plane.
Patent JP-H04332317-A (JP)
Title: Oven
Inventor: HIRONAKA YASUMASA
IPC: F24C7/04
Filed: 1991-01-30
Abstract: PURPOSE:To inhibit the surface temperature of a sheath heater from rising, prevent excessive burning on the surface of an article to be temperature-controlled and extend the range of cooking by installing a switching means which supplies power to the sheath heater for a specified time below power supply time required for burning red hot and actuating the sheath heater under a non-red hot burning state. CONSTITUTION:A relay 9 which carries out application control of an AC power supply 8 to a sheath heater 7 is a cooking chamber is controlled by a heating control circuit 14 within a specified time of a timer switch 10 or controlled to be kept under the setting temperature of a temperature sensor 11. When a burning switch 12 is turned on, the surface of the sheath heater 7 is heated red hot so that a cooking article to be temperature-controlled may be heated with radiation heat and infrared radiation. When a burning switch 13 is turned on, power is supplied to the sheath heater 7 intermittently at a temperature below the setting value for a specified time which fails to exceed the power supply time required for red hot burning. Therefore, this construction makes it possible to inhibit the surface temperature of the sheath heater from rising, maintain the heat of radiation heat at a low value and extend the range of cooking without burning the surface of the cooking article to be temperature-controlled.
Patent JP-H08201917-A (JP)
Title: Projector device
Inventor: ISHIKAWA YUICHI
IPC: G03B21/16
Filed: 1995-01-30
Abstract: PURPOSE: To reduce the maintenance work of an air filter by reversing the flow of external air used for reducing the rise of inside temperature and splashing dust attached to the air filter. CONSTITUTION: By a system control circuit 36 formed of a microcomputer controlling the action of the whole of a liquid crystal projector device 1, control data is outputted to a driving circuit 31 so as to make the rotation of a fan 23 rise. At this time, the rotation of the fan 23 is made to rise in a reverse direction to that at a cooling time by the control circuit 36 and an air flow in the reverse direction to that at the normal cooling time is formed on an external air circulation path as it is shown by a mark (c). In such a way, the air on the inside of a housing is made to blow off toward the air filter 25 and the dust and the like attached to the filter 25 is splashed by the control circuit 36. Thus, the clogging of the filter 25 is reduced and the maintenance cycle thereof for exchanging and cleaning is prolonged.
Patent JP-S59158278-A (JP)
Title: Up/down adjustor for print head
Inventor: MUKOUDA MINORU
IPC: B41J25/316
Filed: 1983-03-01
Abstract: PURPOSE:To reduce a load of a motor eliminating wear of a print head by bringing the head into contact with a recording paper in the outgoing way of printing while separating it from the paper in the incoming way thereof using a driving force of a motor for reciprocating the printing head. CONSTITUTION:After a pulley 7 is connected directly to a motor 6, a wire 9 is wound on a rotary plate 10 of a shaft 5 through a pulley 8 and a rotary plate 13 is fitted slidably into the shaft 5 to be brought into contact with the plate 10 through a friction plate 15. Then, the motor 6 is rotated in the direction A to move a head 1 with the wire 9 in the direction C along a shaft 3 while the plate 10 is turned to rotate the shaft 5 in the direction E through plates 15 and 13 so that a printing base 4 gets in contact with the head 1. In addition, the motor 6 is rotated in the direction B to move the head 1 with the wire 9 in the direction D and the rotation of the plate 10 transmitted to the shaft 5 through the plates 15 and 13 to separate the base 4 from the head 1. Thus, there is no friction of the print head eliminating unnecessary load on a head moving motor.
Patent JP-S54123529-A (JP)
Title: Pickling method for stainless steel
Inventor: ODA TERUMI
IPC: C23G1/08
Filed: 1978-03-20
Abstract: PURPOSE:To enable hydrofluoric and nitric acids to elongate their life in pickling stainless steel by adding a specific amt. of urea to mixed acids based on hydrofluoric and nitric acids and carrying out pickling at a specific temp. to inhibit NH3-forming reaction and utilize the urea efficiently. CONSTITUTION:Urea is added to mixed acids based on hydrofluoric and nitric acids so that the molar ratio of urea to nitrous acid formed from the acids and Fe becomes below 1, and pickling is carried out at 20-50 deg.C. The concn. of urea in the pickling soln. is independent of descaling speed. When the molar ratio is above 1, NH3-forming reaction alone takes place according to the equation, so the acids are remarkably consumed and surface roughening of stainless steel occurs. In case the pickling temp. exceeds 50 deg.C, formation of a passive oxide film is prevented to increase stainless steel dissolving speed, thereby inducing surface roughening and raising urea decomposition rate. A pickling temp. below 20 deg.C requires long descaling time, Under the above conditions urea is utilized efficiently and consumption of hydrofluoric acid is reduced.
Patent JP-H04246287-A (JP)
Title: Gas bearing device for vacuum pump
Inventor: IGUCHI MASASHI
IPC: F16C17/02
Filed: 1991-01-31
Abstract: PURPOSE:To execute the discharge of both kinds of the gas which is clean and the gas mixed with dust, corrosive gas, etc., by a single vacuum pump. CONSTITUTION:An auxiliary exhaust hole 18 opened on a screw groove seal part 4 and an introducing hole 10 opened on a thrust gas bearing part 6 are formed, and the first opening/closing valve 9 is installed in the auxiliary exhaust hole 8, and the second opening/closing valve 12 is installed in an exhaust hole 11 of a vacuum pump part, and in a dust-free state, the second opening/closing valve 12 is closed, and the sucked gas is compressed to a low vacuum by the action of the rotor of the vacuum pump part, and further, compressed to the atmospheric pressure by the screw groove seal 4, and discharged from the auxiliary exhaust hole 8. When dust or the corrosive gas is mixed, the first opening/closing valve 9 is closed, and the pressurized gas is introduced from the introducing hole 10, and the gas sucked by the auxiliary vacuum pump is discharged from the exhaust hole 11.
Patent JP-S63199337-A (JP)
Title: Device for protecting reel shaft in portable projector
Inventor: MATSUURA SHINICHI
IPC: G03B21/32
Filed: 1987-02-14
Abstract: PURPOSE:To prevent reel shafts for mounting a film feeding reel and a film winding reel from being damaged by mounting the reel shaft so as to be freely drawn-out/pulled-in, and at the time of carrying or storing the reel shafts, drawing them into the body. CONSTITUTION:In the carrying state of a portable projector, arms 53, 54 mounted to a cover 45 are pulled into the rear face of the cover 45 as shown by full lines, the cover 45 is folded in a recessed part 44 and a projection lens 48, a sound drum 50, etc., are covered with the cover 45. When the projector is carried to an objective position under said state, set up on the prescribed position and then the depressing of buttons 25, 40 is released or when a sliding board 45 is moved to the outside and the buttons 25, 40 are undepressed, the sliding board is fixed. As the result, right and left reel shafts 2, 3 and controls 20, 38 are projected from both the sides of the body 1. Thereby, the reel shafts can be prevented from colliding with something and being damaged during the carrying by pulling-in the reel shafts into the body at the time of carrying or storing them.
Patent JP-H05234551-A (JP)
Title: Astigmatism correcting method of electron beam device
Inventor: YAMADA ATSUSHI
IPC: H01J37/28
Filed: 1992-02-19
Abstract: PURPOSE:To realize the astigmatism correcting method of an electron beam device, which can correct the astigmatism in the X, Y directions accurately in a short time. CONSTITUTION:When the dislocation quantity D of astigmatism is detected by a peak detecting circuit 25, a CPU 26 reads out the plural astigmatism correction quantity corresponding to the astigmatism dislocation quantities D from a data memory 27, and sets the in registers 10, 14 in order. Each time that the combination of each astigmatism correction quantity is supplied to coils 7, 8, the scanning signal for scanning the sample 4 two-dimensionally is supplied to a deflecting coil 5. The secondary electron generated by this scanning is detected by a detector 19, and the detecting signal thereof is integrated by an integrator 22. The optimal astigmatism correction quantity is the astigmatism correction quantity of the X, Y directions at the time when an integral signal intensity curve corresponding to each combination of the astigmatism correction quantity in the X, Y direction is positioned at a peak.
Patent JP-H05230646-A (JP)
Title: Sputtering apparatus
Inventor: HIGUCHI KATSUTOSHI
IPC: C23C14/35
Filed: 1992-02-19
Abstract: PURPOSE:To provide a sputtering apparatus by which the formation of a film on a substrate can efficiently be executed. CONSTITUTION:This apparatus is provided with a container body 11 in which the pressure of the inside is reduced, a target 15 provided in the container body in such a manner that it is confronted with a substrate 26 with a distance, a container shaped anode 19 partitively forming a space part 21 on the surface side of the target and in which an opening part 20 is formed on a region confronted with the substrate, a D.C. power source 24 generating discharge on the space part between them by impressing voltage on the anode and the target and a permanent magnet 22 provided in the space part and generating a magnetic field on the space part.
Patent JP-2000232413-A (JP)
Title: Optical subscriber system, and two-way optical transmission system using the same
Inventor: MATSUDA EIICHI
IPC: H04B10/54
Filed: 1999-02-10
Abstract: PROBLEM TO BE SOLVED: To provide a two-way optical transmission system capable of reducing the number of used optical parts and economizing an ONU (optical subscriber line terminal unit). SOLUTION: When an outgoing light signal (λ1) from a center station 6 is inputted to a semiconductor external modulator 21 in the ONU 2 for λ1 in a subscriber house 1, the reception of the outgoing light signal (λ1) can be received if a bias is previously given from a bias circuit 22 to the semiconductor external modulator 21. Laser beams for λ1 in the center station 6 are continuously emitted and only laser beams of λ1 in the center station 6 is reflected on a grating fiber 200. When a transmission signal 111 to which the bias is given is inputted to a bias circuit 22, the semiconductor external modulator 21 modulates the outer intensity of light of λ1 from the center station 6 and reflected light in the grating fiber 200 and outputs them.  The light signal of the waveform of λ2, which passes through the semiconductor external modulator 21 and the grating fiber 9, is received by ONU 3 for λ2.
Patent JP-H06250973-A (JP)
Title: Server program execution method
Inventor: KATOU KINJI
IPC: G06F15/00
Filed: 1993-02-22
Abstract: PURPOSE:To provide the execution method of a server program, which can efficiently use resources, can shorten time until service start from a service request from a client and can execute a processing with high performance on a server machine. CONSTITUTION:A corresponding table where a monitor program, a client machine and the server program are made to correspond one another is prepared on a server machine-side. The monitor program and the server program are previously started. When the service request is given from the client machine, the monitor program refers to the corresponding table, the null server program where the client machine is not set is retrieved, the client machine concerned is set and the server program and the client machine are correspondingly processed.
Patent JP-S54125415-A (JP)
Title: Three-phase armature winding with the number of convertible poles
Inventor: MATSUDA SATOSHI
IPC: H02K17/14
Filed: 1978-03-23
Abstract: PURPOSE: To obtain a three-phase armaure winding with the number of convertible poles at a ratio of two to three with a single winding by improving the winding connection.  
     CONSTITUTION: The U phase winding, V phase winding, and W phase winding consist of the windings 3 and 4 and the windng groups 1 and 2, windings 12 to 14 and winding groups 1, 15, and 16, windings 21, 22, and 26 and winding groups 23 to 25, respectively. In such formed windings, when operation is performed by the number of poles, U1 to W1 are connected to the respective power supplies for the number of large poles and the U1 to W1 are jumpered and U2 to W2 are conncted to the power supplies for the number of small poles. This permits a three-phase motor of which number of poles can be converted at rati of two to three and of which phase magnetomotive force is balance to be obtained with a single windig. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H0687452-A (JP)
Title: Device for supporting bushing of stretchable steering column
Inventor: RAIMUNTO AIHIHORUTSU
IPC: B62D1/18
Filed: 1993-02-23
Abstract: PURPOSE: To eliminate play without requiring any adjustment by improving the bearing mount of the steering column tube of a telescoping steering column. CONSTITUTION: Concerning the bearing mount of a steering column tube 1 of the telescoping steering column, the steering column tube is supported by a chassis so as to move in the manner of sliding inside a casing 2 in the axial direction. In order to achieve the bearing mount without play, the steering column tube supports a bearing bush 3, which is composed of a nonmetallic material with slits in the lengthwise direction at least, so as to axially move it in the casing. In that case, this bearing bush is stuck in the state of frictional coupling and supported to an inner conical part 6 of the casing while receiving axial spring load by an outer contour part 5 having a conical cross section.
Patent JP-S57146714-A (JP)
Title: Stabilized composition of sodium nitroprusside and its stabilizing method
Inventor: TATSUHARA TOORU
IPC: A61K47/26
Filed: 1981-03-09
Abstract: PURPOSE: A stabilizer having a maximum absorption within a specific range of wavelength is added to sodium nitroprusside used as a hypostensor by intravenous dripping to improve the stability to light of its aqueous solution.  
     CONSTITUTION: To sodium nitroprusside, is added more than 0.001mM/50mg of sodium nitroprusside, of a stabilizer having a maximum absorption within the range of from 300W500nm, such as adrenochrome, folic acid, flavine-adenine dinucleotide, sodium flavin phosphate, cytochrome C and/or vitamin B 12 , preferably adrenochrome. When necessary, this mixture is dissolved in distilled water for injection or this solution is freeze dried under vacuum into a powder to give a nitroprusside sodium composition stable to light. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-S57147365-A (JP)
Title: Telephone set terminal of switchboard system capable of voice storing service
Inventor: UEHARA JIYOUJI
IPC: H04M3/42
Filed: 1981-03-09
Abstract: PURPOSE:To prevent an input mistake for a telephone swtchboard system capable of storing the voice, by displaying the date, the time, the subscriber No., etc. which are supplied to a voice service center throgh a telephone set terminal to this terminal by a command given from the service center. CONSTITUTION:For the voice storing service like the voice mail service, etc., the originating call given from a telephone set terminal 1 having a figure display 2  and a control circuit 3 is connected to a voice storing/reproducing device 5 (in  a voice service center) to store the contents of a message in the device 5 as well  as to supply the data, the time, the subscriber No. of the remote side to be informed. In this case, the information supplied from the device 5 is transmitted  to the termianl 1. The terminal 1 displays the received information through the  circuit 3 and the display 2. Thus the user of this service system can confirm  that the designation of the date, time, etc. which he or she did himself or herself  is correct.
Patent JP-H07252750-A (JP)
Title: Rotary edge twister in loom
Inventor: HORUSUTO HOISURAA
IPC: D03C7/08
Filed: 1995-02-21
Abstract: PURPOSE: To provide a rotary type margin twisting tool which can be driven independently of a loom driving device, fast ties each weft at both sides of a fabric and can produce a fabric margin of high quality and durability. CONSTITUTION: In the rotary type margin twisting tool of the loom having an electrically controllable servomotor driving a twisting disk, the twisting disk 4 forms a rotor of the electrically controllable servomotor 2 and a stator 3 is joined to a supporting part 14 which is located in free space between a vertical material of a first shaft of the loom and a heald.
Patent JP-S56129583-A (JP)
Title: Electrostatic attracting device for drawing paper and the like
Inventor: YAGI SHINJI
IPC: H02N13/00
Filed: 1980-03-17
Abstract: PURPOSE:To enable to simply attract, fix and exfoliate drawing paper and the like by a method wherein a sheet of paper is placed on an attracting plate made of an insulating material, on the reverse side of which a thin plate-type stationary electrode where a DC voltage will be applied, is polymerized and the moving electrode material earthed along the paper is shifted. CONSTITUTION:The drawing paper and the like 10 is placed on the surface of the attracting plate made of insulating material with the thin-type stationary electrode 2, whereon a DC current will be applied, is polymerized on the reverse side, the earthed moving electrode body B is shifted along the paper and enables the drawing paper and the like 10 to be attracted and fixed on the attracting plate 3 using Coulomb force. The moving electrode body B is held between a pair of holders 9 made of an oblong insulated material in such manner that the cloth-type material 6 having a conductive substance attached and a conductive stick 8 which is earthed through the intermediary of a code 7 are contacted each other and the cloth-type material 6 is provided vertically.
Patent JP-S56129239-A (JP)
Title: Agricultural film
Inventor: SUZUKI TAIJI
IPC: A01G9/00
Filed: 1980-03-17
Abstract: PURPOSE: To provide an agricultural film (a covering material used for culture in plastic greenhouse, culture in plastic tunnel, mulch cultivation, etc.) in which heat retaining properties are improved, by blending a modified silicone rubber with a base material for the film.  
     CONSTITUTION: 1W30pts.wt. modified silicone rubber [a silicone rubber contg. an ethylene-propylene rubber (e.g., SEP-Rubber series, products of Shinetsu  Kagaku K.K.)] and, if desired, a weather-resistance improver and an anti-dripping  agent are added to 100pts.wt. base material (e.g., polyethylene or an ethylene-vinyl acetate copolymer). These materials are melt-mixed. The mixt. is molded into a film to produce the desired agricultural film. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H05201618-A (JP)
Title: Thread passage roller
Inventor: UENOYAMA YOSHIO
IPC: B65H57/14
Filed: 1992-01-22
Abstract: PURPOSE:To improve the productivity and the quality of a fiber product by enabling a long term running without the necessity of a disassembly and maintenance. CONSTITUTION:A rotary support shaft 20 supporting a threading roller 2 and the bearings 6, 8, 10A, 10B of tree rollers respectively is made of a hollow pipe, through which a seal gas is supplied inside of the threading roller 2. The seal gas in the threading roller 2 penetrates respective bearings in an axial direction so as to flow outside, meantime, flows out through ring shaped clearances G1, G2 in a radial direction and outside direction. Thereby, a wool feather, another foreign material, moisture and the like piled up on this part are taken out and removed.
Patent JP-H01208850-A (JP)
Title: Lead frame for semiconductor device
Inventor: MIKAMI AKIO
IPC: H01L23/48
Filed: 1988-02-17
Abstract: PURPOSE:To improve the moisture resistance of a product by forming a trench crossing the surface of a lead near a wire connecting section for the lead for connection through a wire with a semiconductor pellet. CONSTITUTION:Trenches 8 are shaped so as to cross the surfaces of leads 1, 2 for a resin seal transistor in the vicinity of bonding sections for the leads 1, 2. According to the constitution, when moisture intends to infiltrate through the clearances of A resin sealing body 5 and the leads 1, 2, infiltrating moisture is stopped by the trenches 8 shaped so as to cross the surfaces of the leads while the mileage of the leads 1, 2 and the resin sealing body 5 is spread, and bonding strength is increased, thus improving the moisture resistance of a product.