baber/WOPTO huggingface dataset:
Patent JP-S62177413-A (JP)
Title: Optical fiber sensor device
Inventor: SEKI MASAFUMI
IPC: G02B6/00
Filed: 1986-01-31
Abstract: PURPOSE:To reduce the loss of >=6dB of a directional coupler and to eliminate the operation unstableness of a light emitting device by using an electric switch to connect an input optical fiber, a sensor optical fiber, etc. CONSTITUTION:The light emitting device 1 and a port 2A provided to an optical switch 2 are coupled together by the input optical fiber 10 and ports 2B, 2C, and 2D, an optical sensor 3, a photodetecting device 4 for monitoring, and a photodetecting device 5 for the optical sensor are coupled by optical fibers 11, 12, and 13. Then, the switch switches connections among plural waveguides. Namely, while the ports 2A and 2B (2B and 2D) are connected in a state 1 (2), the ports 2C and 2D (2A and 2C) are connected with each other. The sensor 3 is a temperature measuring optical sensor and light incident from the fiber 11 is reflected by a total reflecting film and incident thereon again. Light beams from the fibers 12 and 13 are converted by photodetecting devices 4 and 5 into electrical signals, which are compared by an arithmetic processor 6, so that a signal indicating the detected quantity of the sensor 3 is outputted 16.
Patent JP-S62178917-A (JP)
Title: Zoom lens
Inventor: MIHARA SHINICHI
IPC: G02B15/173
Filed: 1986-02-03
Abstract: PURPOSE:To make the titled zoom lens small in size and light in weight, irrespective of a large aperture by using an aspherical lens, and also making the fourth group have a part as a compensator to omit a negative compensator. CONSTITUTION:The titled zoom lens is constituted of the first group having a positive focal distance, the second group of a variator which has a negative focal distance and can move only at the time of variable power, the third group which is always fixed and has a positive focal distance, and the fourth group which is an image forming system and also movable, the first group is made to have a focusing function, and also, the fourth group is made to have a function for correcting a variation of a focal position, generated at the time of zooming. In order to set the number of pieces for constituting the lens to 10 pieces, it is the most desirable that three pieces, three piece, one piece and three pieces are distributed to the first group, the second group, the third group, and the fourth group, respectively. A spherical aberration of a negative large value which is generated due to a fact that the number of pieces of the constitution has been eliminated in this way and the overall length has been shortened extremely can be dissolved by introducing an aspherical lens to the third group or the fourth group.
Patent JP-2000218927-A (JP)
Title: Manufacture of recording paper
Inventor: TSUCHIYA MASARU
IPC: B41M5/52
Filed: 1999-01-28
Abstract: PROBLEM TO BE SOLVED: To provide the method for producing a recording paper having a void type recording layer, in which neither liquid gathering nor ununiformity occurs and the development of a film defect such as a fine crack or the like is suppressed. SOLUTION: Two or more water-based coating compositions, which do not substantially include gelatin and the viscosity at 40 deg.C of which is 10-100 cP and that at 15 deg.C of which is at least 20 or more times as much as that at 40 deg.C, are simultaneously coated on a support. The preferable water-based coating composition includes void-forming fine particles, a hydrophilic binder and the water.
Patent JP-H02199027-A (JP)
Title: Magnetic alloy
Inventor: WATANABE YASUSHI
IPC: C01G49/00
Filed: 1989-01-30
Abstract: PURPOSE:To provide the title alloy having high saturated magnetic flux density even without the need for assuming multilayered structure, small in coercive force, thus suitable for high-density magnetic recording heads, consisting of iron-group element-based multiple oxide. CONSTITUTION:The objective magnetic alloy to be used for magnetic heads, consisting of an alloy of the formula FewMxOy (M is at least one element selected from Zr, Hf, Ta and Nb: 65<=w<=97.5; 0.5<=x<=15; 2<=y<=20; w+x+y=100) or FewMxOyRuz (-M is the same as the above; 65<=w<=97.2; 0.5<=x<=14.7; 2<=y<=20; 0.3<=z; 0.8<=x+y<=15; w+x+y+z=100).
Patent JP-S60181030-A (JP)
Inventor: FUABIO KARURI
IPC: A61K47/32
Filed: 1985-02-06
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-S56116687-A (JP)
Title: Semiconductor laser device
Inventor: YANO MORICHIKA
IPC: H01S5/042
Filed: 1980-02-19
Abstract: PURPOSE:To obtain a laser device with a comparatively simple structure by a method wherein on a semiconductor substrate, five layers of mesa structure and including the second layer to be an active region are formed so that the first, second and fourth layers form a double heterodyne structur. CONSTITUTION:On an N type semiconductor substrate 1, an N type layer 2, a P type layer 3 to be an active region, a P type layer 4, a P type layer 5 and a P type layer 6 are successively grown. Then, with a stripe width W left, the remaining portion is removed up to the layer 4 so that the layers 5 and 6 are formed into a mesa shape. Then, an insulating layer 7 is formed over the whole surfaces of the layers 4-6. Then, the layer 7 is zonally removed to form a window 8 above the layer 6. Then, an electrode 9 is formed on the layer 7 and facing to the window 8, and another electrode 10 on the substrate 1. Hereupon, the layer 3 is sandwiched between the layers 2 and 5 to form a double heterodyne structure. In a thus formed  semiconductor laser device, when a voltage is applied between the electrodes 9  and 10, the light from the layer 3 is trapped between the layers 2 and 5, and a  stable single mode oscillation can be performed directly below the layer 5.
Patent JP-S58138780-A (JP)
Title: Air flow rate controlling apparatus in coke dry quenching apparatus
Inventor: YAMAGUCHI MASAE
IPC: C10B39/02
Filed: 1982-02-10
Abstract: PURPOSE:To prevent the accident in a gas circulating system by the blowing up of a coke and maintain the continuity of coke quenching operations, by sensing automatically the limit of the pressure loss in depositing the coke in the gas discharging hole of a quenching tower, and reducing the feed rate of a blowing in quenching gas. CONSTITUTION:A quenching gas is blown into a quenching tower 3 to quench a red-hot coke, which is delivered from a delivery outlet 2 one afte another. In the process, the differential pressure between the pressure in the upper part of the quenching tower 3 and the pressure of the quenching gas in a gas discharging hole 4 is sensed by a pressure sensor 14 and further compared with the set  value in dicating the limit of the pressure loss in depositing the coke in the gas  discharging hole 4 preset by a control circuit 15. If a differential pressure exceeding the set value is sensed, the above-mentioned control circuit 15 is directly  operated to sound an alarm 17, and the rotation of a motor 18 or an angle of a  damper 19 is controlled to reduce the feed rate of the blowing in quenching gas.
Patent JP-H11204078-A (JP)
Title: Cathode for discharge tube, manufacture thereof, and arc lamp
Inventor: MIYAMOTO HIROYUKI
IPC: H01J9/04
Filed: 1998-01-16
Abstract: PROBLEM TO BE SOLVED: To enable stable operation during high output of an arc lamp by using a carbide or nitride containing IVa, Va, and VI a group elements in the periodic table for a cathode base material. SOLUTION: In manufacture of a cathode, fine or porous bodies consisting of IVa, Va, and VIa group elements in the periodic table such as W, Ta of Hf are polished or cut to form tip ends sharply in cone shape. An unfinished discharge tube cathode main body 4 is mounted on a vacuum chamber 6, applied power is controlled in a gaseous carbon compound such as methane or gaseous nitrogen compound such as ammonia or gaseous hydrogen containing these mixed gas or argon atmosphere to perform plasma discharge processing. As a result, a carbide or nitride area 8 is formed. Thereby, a very high heat resistance temperature can be obtained, and thus, even if a tip end is sharpen, deterioration of the tip end shape is slow, and high luminance and long service life are achieved.
Patent JP-H02199469-A (JP)
Title: Image forming device
Inventor: YAMAGUCHI YASUKI
IPC: G03G15/08
Filed: 1989-01-30
Abstract: PURPOSE:To reduce oscillation transmitted from an upper main body to an image forming part and to make relative position between the image forming part and a transfer part accurate by providing supporting parts which abut on the image forming part and an engaging means which engages with the image forming part on the lower main body. CONSTITUTION:A frame 39 is fixed on the upper cover 3 of the lower main body 1 of an electrophotographic printer and the frame 39 is formed of a supporting part 40 which supports the bearing 35 of an image carrier 24 and a supporting point part 41 which keeps the supporting shaft 37 of a toner container 30. Besides, the frame 39 is provided with the engaging means 43 which engages with an image carrier unit 21 and constituted of an engaging lever 45 and an engaging lever 47 turning around a supporting shaft 44 and a supporting shaft 46, respectively. These levers 45 and 47 are energized by the energizing force of a spring 48 in opposite directions. By this means 43, the unit 21 is brought into press-contact against the supporting parts 40 and 42 of the main body 1 and then the relative position between this means and the transfer part is made accurate.
Patent JP-H02201970-A (JP)
Title: Silicon diode
Inventor: IDE TETSUO
IPC: H01L25/07
Filed: 1989-01-30
Abstract: PURPOSE:To improve breakdown resistance and hence improve high frequency characteristics by allowing a depletion layer to spread into also a p<+> layer as steep reverse voltage is applied thereto by lowering an impurity concentration gradient in the vicinity of a pn junction between an n base layer and the p<+> layer. CONSTITUTION:An n type silicon substrate having a predetermined specific resistance is used, from one surface of which substrate an acceptor impurity is diffused to four a depth d1 p<+> layer and from the other surface of which a donor impurity is diffused to form an n<+> layer. Herein, impurity concentration of the n base layer without diffusion of the impurity is 10<14>/cm<2>. Since a diffusion concentration gradient in the vicinity of a pn junction is progressive as a concentration ratio being 15 times/1mum or less, a depletion layer spreads not only into the n base layer but also into the p<+> diffusion layer even if steep voltage is applied thereto. Therefore, an electric filed intensity is correspondingly reduced to improve breakdown resistance. Thus, the thickness of the n ba layer can be thinned to improve high frequency performance. Hereby, high frequency performance can be improved and steep reverse voltage resistance can be prevented from lowering.
Patent JP-H08212721-A (JP)
Title: Disk device
Inventor: HANEZAWA YASUSHI
IPC: G11B20/18
Filed: 1995-02-08
Abstract: PURPOSE: To prevent the discontinuance of sound caused by a retry action by reading the speech data immediately after the speech data related to an error by a reading means when the retry counted value exceeds a preset retry value. CONSTITUTION: A CPU 9 judges whether data error has been generated or not, performs the increment of the counted value of an error counter 6 by +1 when the error has been generated and judges whether the counted value exceeds a preset error value or not. When the counted value does not exceed the preset value, whether the counted value of a retry counter 5 exceeds a preset retry value or not is judged. When the counted value does not exceeds the preset value, an optical pickup 1 is made to execute the retry action to speech data related to the error. The counted value of the counter 5 is made to perform increment by +1. Whether the counted value of a progress counter 8 is 1 or not is judged.  When the counted value is 1, it is judged that the remaining amount of the data in a memory 24 is less, and the pickup 1 is made to execute the access action to the speech data immediately after the error.
Patent JP-H08214115-A (JP)
Title: Image reader
Inventor: SATO HIROSHI
IPC: G03G15/04
Filed: 1995-02-08
Abstract: PURPOSE: To prevent an optical loss and to attain reading of an image with high image quality by forming once a luminous flux in the subscanning direction and forming an image again on a monolithic 3-line sensor in a way of a dividing the luminous flux. CONSTITUTION: A 1st image forming optical system is made up of lenses 1, 2, a luminous flux converged by a refractive power Ψ1 of the lens 1 is further converged by a refractive power Ψ2 of the lens 2 and an image is once formed at a point A before the monolithic 3-line sensor 4. The image of the luminous flux once formed only in the subscanning direction is diverged and then formed on the monolithic 3-line sensor 4 by a refractive power Ψ3 of a lens 3 being a component of a 2nd image forming optical system. The refractive power Ψ3 of the lens 3 acts on the luminous flux so as to divide the flux and the three lenses having the common refractive power Ψ3 are arranged in the subscanning direction.  Even the luminous flux in the subscannig direction is formed on the monolithic 3-line sensor 4 by the refractive power Ψ3 similarly in the case of the image forming in the main scanning in a way of re-forming of image.
Patent JP-S63188809-A (JP)
Title: Perpendicular magnetic recording and reproducing head
Inventor: NUMAZAWA JUNJI
IPC: G11B5/127
Filed: 1987-02-02
Abstract: PURPOSE:To improve the recording and reproducing sensitivity and to facilitate the coil winding by constituting the titled head by a main magnetic pole clip part opened in a direction opposite to the recording medium, a support block and a magnetic block in the track broadwise direction so as to reduce the magnetic reluctance. CONSTITUTION:A main magnet pole 3 is clipped by the main magnetic pole clip part 3a made of a magnetic substance and a nonmagnetic member 6 with a prescribed thickness and supported by auxiliary magnetic pole blocks 1a, 1b to constitute a supporting block 4. Since a coil wound by the separate process is inserted from the open end of the clip part 3a, the coil space is expanded and the winding process is simplified. The magnetic recording and reproducing circuit consists of a route of main magnetic pole 3 - magnetic layer of recording medium - magnetic block 10 in track broadwise direction - auxiliary magnetic pole block 1 - male magnetic pole 3, the circuit is short-circuited magnetically by the block 10, the magnetic reluctance is decreased and the recording and reproducing sensitivity is improved.
Patent JP-H11315124-A (JP)
Title: Cycloolefin-based polymer, catalyst for producing the same and usage of the same catalyst
Inventor: BREKNER MICHAEL-JOACHIM
IPC: C08F32/08
Filed: 1999-01-28
Abstract: PROBLEM TO BE SOLVED: To obtain a cycloolefin-based polymer having a large viscosity number and a high glass transition temperature, and useful for the extrusion molding of film, or the like, by copolymerizing a polycyclic olefin and an acyclic olefin under a specific condition. SOLUTION: This polymer is obtained by copolymerizing (A) 0-100 wt.% monomer of formula I (wherein, R<1> -R<4> are each H or the like), (B) 0-99.9 wt.% cycloolefin of formula II [wherein, (n) is 2-10] and (C) 0-99.9 wt.% acyclic 1- olefin of formula III (wherein, R<9> -R<12> are each H or the like) in a state of solution, or the like, at -78 deg.C to 150 deg.C and 0.5-64 bar in the presence of a catalyst comprising a metallocene of formula IV (wherein, M<1> is Ti or the like; R<14> and R<15> are each H or the like; R<16> and R<17> are each a mononuclear hydrocarbon capable of forming a sandwich structure by combining with M<1> ; R<18> is Ge or the like) and an aluminoxane of formula V [wherein, R is a 1-6C alkyl or the like; (n) is 2-50] or the like.
Patent JP-S52103788-A (JP)
Title: Shearing machine
Inventor: TAKUBO YUKIYASU
IPC: B23D25/10
Filed: 1976-02-26
Abstract: PURPOSE: To provide a shearing machine, in which there are employed lever means having the function of parallel links, so that front end portion and rear end portion of steel plate can be cut into different shapes. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S61178683-A (JP)
Title: Transmitting and receiving apparatus
Inventor: KITAJIMA KOICHI
IPC: H01Q19/19
Filed: 1985-02-05
Abstract: PURPOSE:To sufficiently suppress the lowering in the functions of both systems of a radio wave and a light wave, by forming the shape of the emitting surface side of an array antenna for a radio wave arranged in a plane form into a parabolic shape and providing a multi-layered induction layer reflecting only a light wave to the surface of the aforementioned parabolic surface. CONSTITUTION:A plurality of emitting elements 11 are arranged in a parabolic plane array in order to use the main reflective mirror of an optical system. In order to correct phase difference due to this arrangement, a phase is corrected by a current supply circuit 12 so that the phase of the radio wave emitted from an array antenna 1 comes to an equal phase on a plane vertical to the axis of the antenna. The light wave such as infrared rays emitted from a target is converted to an electric signal by a light wave detector 8 by using an optical system constituted of a multi-layered induction layer reflecting only a light wave provided to the front surface of the array antenna and an auxiliary reflective mirror. By this method, both systems of a radio wave and a light wave can be made compatible without lowering he functions thereof.
Patent JP-H09192614-A (JP)
Title: Front end device for cleaning work of steel frame structure
Inventor: TSUCHIYAMA MASAMI
IPC: E01D2/00
Filed: 1996-01-12
Abstract: PROBLEM TO BE SOLVED: To make it possible to efficiently execute four kinds of cleaning work for the trussed beams, box beams, etc., of a long bridge perfectly as designed by means of robots, etc., with the same accuracy as the accuracy by manual work without pollution. SOLUTION: The formation of the anchor patterns on coating film surfaces is surely executed as designed by the front end device 1 for the cleaning work mounted via a frame at the manipulator 5 of the robot in the following manner: Non-woven fabrics 36 which are adhered with abrasive grains 7 are laminated to a doughnut form and the outer side thereof is enclosed with an acrylic cup. The peripheral edge at the end of this cup is annularly provided with a mirror sheet having flexibility. A brush 38 for cleaning is eccentricity rotated via a disk 7 by means of an air sander 8 without expansion, by which roughening is executed. The cleaning dust and the self-dressing of the non-woven fabrics are discharged and removed by a discharge fan. Four kinds of the cleaning are thus perfectly executed without pollution of the peripheral environment.
Patent JP-S59147403-A (JP)
Inventor: EBINE KAZUHIDE
IPC: C04B35/46
Filed: 1983-02-10
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-H05244529-A (JP)
Title: Line arrangement correction device
Inventor: MIYASHITA YUKIMASA
IPC: H04N5/45
Filed: 1992-02-06
Abstract: PURPOSE:To prevent longitudinal fluctuation of a slave pattern by preventing production of a step difference on a slave pattern in the picture-in-picture (PIP) system even when fluctuation in master pattern/slave pattern field frequencies takes place. CONSTITUTION:Read/write addresses RAD, WAD are compared by a comparator 1 and when a point of read outrunning write is discriminated, then a level of a COM is active and an increment controller 2 generates a mask pulse 11. On the other hand, a line buffer output LB is sent to a data selector 5. The selector 5 outputs slave pattern display data 13 based on the COM level, the mask pulse 11 and LB and field memory read data 12. Furthermore, an AND gate 3 outputs a read address clock RAC based on the inverted mask pulse 11 and the read address clock 8. The slave pattern display is corrected based on the slave pattern display data 13 and the clock RAC.
Patent JP-H01196541-A (JP)
Title: Spectrochemical analyzer using semiconductor laser
Inventor: EDA HIDEO
IPC: G01N21/39
Filed: 1988-01-30
Abstract: PURPOSE:To remove interferring components, by making a drive current value of one semiconductor laser variable as light source to perform a measurement varying an oscillation wavelength of a semiconductor laser. CONSTITUTION:A lighting circuit 2 for a semiconductor laser 1 as light source is provided with a variable resistor 3 as current varying circuit. A photomultiplier 5 detects light from a semiconductor laser 1 transmitted through a measuring sample 4 and an output thereof is supplied to a recorder through a differentiation circuit 6 to record transmissivity or absorbance of the semiconductor laser 1 with respect to an oscillation wavelength. By varying a drive current value of the semiconductor laser 1 continuously with the variable resistor 3 during the measurement of the sample 4, the oscillation wavelength of the semiconductor laser 1 is deviated. This enables detection of a data of a different oscillation wavelength besides the data of the desired oscillation wavelength on the light receiving side thereby accomplishing a processing of data of transmissivity and absorbance subjected to a continuous wavelength scanning by a differentiation method.
Patent JP-H11219952-A (JP)
Title: Manufacture of semiconductor device
Inventor: FURUYA AKIRA
IPC: H01L21/318
Filed: 1998-02-02
Abstract: PROBLEM TO BE SOLVED: To form a film free from carbon that deteriorates it in electric properties and halogen that causes corrosion to a wiring or the like without using a reducing atmosphere by a method wherein a silicon nitride film is formed on a substrate kept in a specific temperature by the use of a mixed gas of SiF4 or Si2 F6 and N2 through a plasma CVD. SOLUTION: An Si halide or an Si organic compound is used as a material to form a silicon nitride film through a CVD method. Problem of an Si halide is to cause corrosion by residual halogen, but residual halogen does not deteriorate a silicon nitride film in characteristics. When residual halogen is small, corrosion can be avoided in an after process, so that a silicon nitride film formed of Si halide can be applied to a semiconductor device. When a silicon nitride film is formed of Si organic compound, residual carbon deteriorates the silicon nitride film in characteristics, so that the silicon nitride film can not be applied to a semiconductor device. Therefore, a mixed gas of Si halide and N2 is suitable material for forming a silicon nitride film in a non-reducing atmosphere through a CVD method.  It can be judged taking free energy of formation into consideration what is suitable as Si halide.
Patent JP-2000220635-A (JP)
Title: Assembling method for linear guide with separator
Inventor: YABE SHIROSHI
IPC: F16C33/37
Filed: 1999-01-29
Abstract: PROBLEM TO BE SOLVED: To easily and precisely assemble a rolling body and a separator to a bearing body by inserting the rolling body and the separator while adding a returning force to the rolling body and the separator from the direction opposite to the insert port. SOLUTION: When a steel ball 9 is integrated to each circulating passage through an integration port 15a, the height of the steel ball line present on the integration port 15a side reaches about the integration port 15a. At this time, a downward load is added by the dead weight of the steel ball line located on a discharge port 15b side to generate a returning force of the direction opposite to the integrating direction of the steel balls in the integration port-side steel ball line through the steel balls 9 in a U-shaped groove 21. Thereafter, a separator 11 and the steel ball 9 are alternately integrated through the integration port 15a so that the recessed side surface of the separator 11 makes contact with the steel ball 9, and the insertion is continued until the separator 11 is discharged from the discharge port 15b.  After the steel balls 9 and the separators 11 are integrated into a bearing body in this way, a temporary shaft is pulled out, and the bearing body is mounted on a rail.