baber/WOPTO huggingface dataset:
Patent JP-S5876809-A (JP)
Title: Optical scanner
Inventor: TAKAHASHI KENSAKU
IPC: G02B26/10
Filed: 1981-10-30
Abstract: PURPOSE:To improve characteristics while reducing curvature aberration of field (circle of confusion), by arranging a scanner at a specific position for a spherical mirror used as a concave mirror. CONSTITUTION:A laser beam 1 is swept by a scanner 2 within a range of an angle theta, and reflected upward by a mirror 8 and then downward by a spherical mirror 7' to form a spot P on a scanning surface 4. The spherical mirror 7' is in a strip shape obtained by cutting discoid shape within only an area range necessary for scanning, and its lengthwise direction coincides with the scanning direction. Further, the spherical mirror 7' is arranged slanting at epsilon so that the beam is incident at right angles without allowing the mirror 8 to disturb the optical path. The optical path length between the scanner 2 and spherical mirror 7' is within a range of kf (0.78<=k<=0.84) where (f) is the focal length of the spherical mirror 7', and the scanner 2 is adjusted finely as shown by an arrow K in accordance with the maximum value of the scanning angle theta, obtaining an optimum value (k).
Patent JP-S5961827-A (JP)
Title: Light shielding blade for light controller
Inventor: KATOU HIRONOBU
IPC: G03B9/00
Filed: 1982-10-01
Abstract: PURPOSE:To obtain lightweight, durable light shielding blades for the lens shutter of a camera, etc., which have smooth surface and high mechanical strength and run fast, by composing either of the core and skin parts of every blade of resin reinforced by continuous fiber such as carbon fiber. CONSTITUTION:At least either or, preferably, both of the skin parts 1a and 1b, and core parts 2 of a blade or an aperture blade, etc., of a focal plane shutter and a lens shutter of a cemera are formed by stacking, pressing, and heating prepreg sheets of epoxy resin, etc., reinforced by continuous carbon fiber. The core parts 2 are provided with hollow parts 3. When the skin parts 1a and 1b are provided with recessed parts 4 internally and formed while stacked on the core parts, the resin flows out of the core parts 2 to the recessed parts to improve the joint strength by anchor effect. Thus, the lightweight blade which has high mechanical strength, high shock absorability, high wear resistance, and superior durability, and runs fast is obtained.
Patent JP-2001004032-A (JP)
Title: Resin-made seal ring
Inventor: KAKEHI KOZO
IPC: F16J15/16
Filed: 1999-06-18
Abstract: PROBLEM TO BE SOLVED: To decrease a leak of oil by forming a lip prevented from easily breaking, even in a resin-made seal ring with high elastic modulus. SOLUTION: In a resin-made seal ring capable of injection molding of a rectangular section having mutually opposed abutments, one abutment 1 has a butt surface 2 in a seal ring internal diametric surface side, lip 3 protruded from the butt surface on the external diametric surface side of the seal ring, and a retracted pocket 4. The other abutment 1' has a butt surface 1', pocket 4', and a lip 3' formed so as to be complementarily fitted to the butt surface 2, lip 3, and the pocket 4, and length 1, 1' of the respective lip 3, 3' is 50 to 200% the length of a minor side in the seal ring rectangular section.
Patent JP-H0729038-A (JP)
Title: Automatic ticket examination device
Inventor: KOGURE MITSUTOSHI
IPC: G07B11/00
Filed: 1993-07-13
Abstract: PURPOSE:To provide an automatic ticket examination device which can sufficiently secure communication time by means of non-contact with a passing medium and which can execute a ticket examination processing job in an always stable state. CONSTITUTION:In the automatic ticket examination device 1 which forms the transmission possible area of a radio wave near a device main body 1A by a radio wave transmission means 10 provided for the device main body 1A and which causes the passing medium transmitting passage information in the form of the radio wave to pass through the transmission possible area so as to execute a ticket examination processing without contact, the radio transmission means 10 is provided with an antenna 2 transmitting the radio wave and an area enlargement part 9 enlarging the transmission possible area which the antenna 2 forms along the passing direction of the passing medium of the device main body 1A. Thus, ticket examination processing time by non-contact with the passing medium can be taken sufficiently long by the enlarged transmission possible area which is formed along the passing direction of the passing medium of the device main body 1A, and the ticket examination processing job can be executed in the always stable state.
Patent JP-H0924219-A (JP)
Title: Sealing and dust-removing structure and its preparation
Inventor: YOSHIDA YUKIO
IPC: F16J15/10
Filed: 1995-07-10
Abstract: PROBLEM TO BE SOLVED: To provide a sealing and dust-removing structure capable of inexpensively preparing and lessening restrictions on resin materials to be used, and a method for preparing it. SOLUTION: Seal parts 21 and 22 are respectively formed by fixing a seal material on both front and back faces of a base sheet 20 of a separate plate 6 by means of pattern printing, and oil-tightly sealing valve bodies 2, 3 and the separate plate 6, and the edge part 23a is embedded into the seal part 21 and a filter member 23 crossing transversely an oil hole 11 is fixed on the base sheet 20.
Patent JP-H1119572-A (JP)
Title: Member for holding cylindrical container to be decorated
Inventor: UKEKAWA JIHEI
IPC: C23C16/26
Filed: 1997-06-30
Abstract: PROBLEM TO BE SOLVED: To provide a holding member, for a cylindrical container to be decorated, which has a DLC coat (diamond-like carbon: hard carbon) of high wear- resistance with no adverse effects to damage the inner peripheral face of the cylindrical container and outstanding adhesion properties, and further, diminishes the extent of metal coagulation/settlement and serves as a member for the cylindrical container allowing the repetition of precise printing over a long time. SOLUTION: This holding member for a cylindrical container to be decorated comprises a metal sleeve body for a mandrel, a ceramic sleeve of a silicon nitride sintered material which is of a cylindrical shape and has an outer surface roughness Rmax of 0.4 μm or less and further, is fitted into the outer peripheral part of the sleeve body, a DLC coat and/or a diamond coat formed on the outer surface of the ceramic sleeve. The thickness of the coat is 0.1-150 μm and the surface roughness Rmax is 0.25 μm or less. In addition, when observed microscopically, no pore having an area of 3×10<-4> mm<2> or more is found and in the visible field of 800 μm×600 μm, five or less pores having an area of 7×10<-5> -3×10<-4> mm<2> are found.
Patent JP-2001006367-A (JP)
Title: Semiconductor memory
Inventor: IGA HIROMICHI
IPC: G11C11/4091
Filed: 1999-06-21
Abstract: PROBLEM TO BE SOLVED: To normally operate a sense amplifier even when the potential difference is small by differentially amplifying the potential difference between first and second nodes amplified by an invertible amplifying circuit including a first invertible amplifier which invertingly amplifies the potential of a first node to apply it to a second node and a second invertible amplifier which invertingly amplifies the potential of the second node to apply it to the first node. SOLUTION: A DRAM is provided with memory cells MC and sense amplifiers SA and the sense amplifier SA includes an invertible amplifier circuit IA and a differential amplifier circuit DA. The invertible amplifier circuit IA invertingly amplifies the potential of a bit line BL with an invertible amplifier 10 to apply it to a bit line, the inverse of the BL and invertingly amplifies the potential of the bit line, the inverse of the BL with an invertible amplifier 20 to apply it to the bit line BL. The differential DA differentially amplifies the potential difference between bit lines BL, the inverse of the BL which are amplified by the invertible amplifier IA.  That is, a minute potential difference to be generated between the bit lines BL, the inverse of the BL is amplified by the invertible amplifier IA to make the differential amplifier DA so as to be able to perform a detecting and amplifying operation normally.
Patent JP-H0225207-A (JP)
Title: Belt type grinding device for rolling roll
Inventor: ISHIKAWA TAKASHI
IPC: B21B28/04
Filed: 1988-07-12
Abstract: PURPOSE:To obviate a belt double bend and a belt rupture of a roll grinding device by facilitating a displacement in the width direction of a belt and measuring a pressure distribution and the displacement quantity in that case. CONSTITUTION:A roll 1 is ground by pressing a grinding belt 3 against the surface of the rolling roll 1 by a pressing member 6 to which prescribed pressure has been applied. By pressing ununiformly the pressing member 6 by a pressing force adjusting means, a displacement in the width direction of the grinding belt 3 and a variation of its pressure distribution are executed easily. This pressure distribution and the displacement quantity are measured by pressure detecting sensors 12A, 12B and position detecting sensors 14A, 14B. In such a way, a belt double bend and a belt rupture of the roll grinding device can be obviated.
Patent JP-H0813641-A (JP)
Title: Vibrationproof floor panel
Inventor: AMANO SHIKO
IPC: E04B5/43
Filed: 1994-06-30
Abstract: PURPOSE:To improve vibrationproof performance and sound-insulating performance by disposing a plurality of fittings consisting of upper pieces formed at the upper ends of upstanding pieces and upper and lower holding pieces bearing a sound-insulating board through elastic bodies on a floor-panel base body. CONSTITUTION:A plurality of floor joist materials 5 are arranged in parallel at equal distances, and a floor backing board 6 is mounted on the top faces of the floor joist materials 5, thus forming a floor-panel base body 2. Sound- insulating boards 4 are inserted and built among the upper holding pieces 9 and lower holding pieces 10 of pairs of fittings 3 through elastic bodies 13, thus forming damper members 16. The upper pieces 11 of the fittings 3 of the damper members 16 are abutted against the underside of the floor backing board 6 as being inserted among the adjacent floor joist materials 5 of the floor-panel base body 2 while the undersides of lower pieces 12 are abutted against the top face of a corbel 14 constructed at right angles with the floor joist materials 5.
Patent JP-S5875565-A (JP)
Inventor: YATABE SADAO
IPC: A23L1/00
Filed: 1981-10-29
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-H11144251-A (JP)
Title: Recording and reproducing method and device for optical disk
Inventor: PARK IN-SIK
IPC: G11B7/127
Filed: 1998-06-19
Abstract: PROBLEM TO BE SOLVED: To efficiently increase the recording speed for an optical disk having wavelength characteristics by recording information on the optical disk having the difference of light absorptivity in accordance with wavelength with a light beam having the wavelength of a first standard and reproducing the information record on the optical disk with a light beam having the wavelength of a second standard. SOLUTION: The first light source 18 of an optical pickup 12 oscillates the 650-nm laser of the first standard having a red wavelength high in light absorptivity at a CD-R, that is, low in reflectivity, and the second light source 20 oscillates the 780-nm laser of red wavelength low in light absorptivity at the CD-R, that is, high in reflectivity. Then, when information are recorded by increasing the revolving speed of an optical disk 10 in order to shorten a recording time for the optical disk 10 such as the CD-R, the information are recorded with a light beam having the wavelength of 650 nm. Thus, the recording speed for the optical disk 10 can be increased without causing heat generation or increasing cost.
Patent JP-H0834202-A (JP)
Title: Wheel
Inventor: IDA KAZUHIKO
IPC: B60B25/02
Filed: 1994-07-26
Abstract: PURPOSE:To provide a wheel which has high mechanical strength and excellent corrosion resistance, and can make its thickness thinner. CONSTITUTION:An outer rim part 1 for composing the outside end of the outer periphery of a wheel, a center hub part 2 for composing the central part of the outside of the wheel, and a connection part 3 being a designed face for connecting the outer rim part 1 to the center hub part 2 are unitedly formed of the casting of two-phase stainless steel composed in the mixed structure of ferrite and austenite for composing a wheel outside half body 4. A central rim part 5 for composing the central part of the outer periphery of the wheel and an inner rim part 6 for composing the inside end part of the periphery of the wheel are formed of austenite system stainless steel for composing a wheel inside half body 7. The wheel outside half body 4 and the wheel inside half body 7 are mutually stuck fast.
Patent JP-S6064959-A (JP)
Title: Production of tetrahydrophthalimide derivative
Inventor: TAKEMOTO KAZUKI
IPC: C07D209/48
Filed: 1983-09-19
Abstract: PURPOSE:To obtain the titled compound useful as a herbicidally active compound easily in high yield and purity, by chlorinating N-2'-fluoro-5'-isopropoxyphenyl-3,4,5,6-tetrahydrophthalimide as a raw material. CONSTITUTION:N-2'-Fluoro-5'-isopropoxyphenyl-3,4,5,6-tetrahydrophthali mide as a raw material is chlorinated with sulfuryl chloride or Cl2 in a solvent in the presence of a dehydrohalogenating agent, e.g. dicyclohexylamine, at 10-100 deg.C for 1-10hr to afford N-2'-fluoro-5'-isopropoxyphenyl-3,4,5,6-tetrahydrophthalimide. The above-mentioned raw material is obtained by reacting 2-fluoro-5- aminoacetanilide with NaNO3, hydrolyzing the resultant compound, and reacting the hydrolysis product with 3,4,5,6-tetrahydrophthalic anhydride, and finally with an isopropyl halide of the formula (X is Cl or Br, etc.).
Patent JP-S6418502-A (JP)
Title: Manufacture of corrosion resistant austenitic stainless steel clad steel sheet containing mo
Inventor: YAMANE YASUYOSHI
IPC: B21B1/22
Filed: 1987-07-14
Abstract: PURPOSE:To improve the corrosion resistance of a clad steel sheet by joining a stainless steel containing Ni, Cr, Mo, C, Si, Mn, P, and S of a specific wt. percentage and hot rolling the clad steel after heating the steel at a prescribed temp. for a prescribed retention time. CONSTITUTION:An austenitic stainless steel containing, by wt., 11.0-15.0% Ni, 18.0-21.0% Cr, >=3.00% Mo, <=0.03% C, 0.05-1.0% Si, 0.05-2.00% Mn, <=0.045% P, <=0.03% S, and N component meeting the requirement shown by the formula I joins to a carbon or a low-alloy steel. The joined steel is heated in the temp. range of 1050-1300 deg.C for a time of >30min and a clad steel sheet is formed by hot rolling. The delta ferrite is completely decomposed and no sigmaphases in the joined stock is generated because an N component holding a prescribed relation to Mo component is contained in the stainless steel. Therefore, the corrosion resistance of the steel is improved.
Patent JP-S6417566-A (JP)
Title: Image signal processing circuit
Inventor: SASAKI TSUTOMU
IPC: H04N1/403
Filed: 1987-07-13
Abstract: PURPOSE:To set the most suitable slice point for a multi-level image signal by using the average level of 2m-pieces of reference picture element centering on an attended picture element as an element for the decision of slice level. CONSTITUTION:An input analog image signal 1 is converted to a bit-parallel digital signal 3 by an A/D converter 2 and supplied to a shift register. Digital signals Di-m-Di+m accumulated in the respective stages of the register 4 are outputted from the output terminals of said stages and supplied to an sum average circuit 5. The circuit 5 calculates the average level of the respective digital signals thus inputted, and outputs an average level signal 8 to a division circuit 7. The circuit 7, using information supplied from a switch 6 as a divisor, divides the average level signal 8, and outputs its result as a slice level signal 9. Next, the level signal 9 and an attended picture element Di in the register 4 are compared with each other as to magnitude by a comparator circuit 11, and binarized.
Patent JP-S5881253-A (JP)
Inventor: SHIIMASU GIAROIDO TEIMONII
IPC: F16H1/36
Filed: 1981-10-30
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-2000010357-A (JP)
Title: Electrophotographic liquid developer
Inventor: AMARIGOME KISHO
IPC: G03G9/12
Filed: 1998-06-22
Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic liquid developer exerting no adverse influence on an environment, capable of restraining a change in chargeability with the lapse of time, capable of stably obtaining an image quality, the image concentration and a developing speed and excellent in preservability in an yellow electrophotographic liquid developer capable of coping with the formation of a full color image. SOLUTION: In an electrophotographic liquid developer by dispersing a toner in an electrically insulating carrier liquid, the electrophotographic liquid developer is constituted in such a way that the toner contains a compound classified into Color Index Pigment Yellow 180 or its derivative and/or at least one kind of compound selected from a group composed of compounds classified into Color Index Solvent Yellow 162 or its derivative as a coloring agent and the carrier liquid has an aniline point of 80 deg.C to 100 deg.C.
Patent JP-H1023726-A (JP)
Title: Spindle motor
Inventor: SAITOU FUMIAKI
IPC: G11B5/39
Filed: 1996-07-04
Abstract: PROBLEM TO BE SOLVED: To obtain an index pulse generator suitable for a thin floppy disk drive by using a magnetism detecting means provided near the outside of a rotor section as a planar ferromagnetic anisotropic variable magnetoresistive element. SOLUTION: A spindle motor is constituted in such a way that a projecting section 2 is provided on the outer peripheral section of a rotor magnet 1, and the outer peripheral surface 3 of the section 2 is polarized in a single pole (N or S pole) so that the section 2 can function as a PG magnet. Then, a flange section 5 having a hole 6 is provided on the outer peripheral side of a rotor section 4 and the projecting section 2 of the magnet 1 is inserted into the hole 6 and firmly stuck to the inside of the rotor section 4. In a stator section 7, in addition, a ferromagnetic anisotropic variable magnetoresistive element (MR element) 8 is provided near the polarized pole on the outer periphery of the section 2.  When the motor starts to rotate, the MR element 8 mounted on the circuit board of the stator section 7 near the projecting section 2 causes to change the resistance due to the component of a magnetic field 12b and blocks leakage magnetic fluxes from the projecting section 2.
Patent JP-H0714078-A (JP)
Title: Sensor device with alarm
Inventor: OKUDA YASUO
IPC: G08B13/12
Filed: 1993-06-23
Abstract: PURPOSE:To speedily stop an alarm started to sound from the outside in a sensor device with alarm. CONSTITUTION:A main body case 11 is provided with two connection terminals 15 to which a connection wire 13 is connected. In the main body case 11, a detection part 17, a driving part 19, a sounding unit 21, and a reset part 23 are arranged. The detection part 17 which is connected to the connection terminals 15 detects a disconnection state wherein the connection wire 13 is disconnected and outputs a short detection signal to the driving part 19. The driving part 19 outputs a continuous driving signal to the sounding unit 21 on the basis of the detection signal. The reset part 23 receives a wirelssed indication signal and outputs a reset signal. The driving part 19 stops the driving signal with the reset signal.
Patent JP-H0225103-A (JP)
Title: Pattern setting circuit
Inventor: NONAKA MASAAKI
IPC: H03G3/10
Filed: 1988-07-13
Abstract: PURPOSE:To easily adjust a bias and the amplification factor by one adjustment by providing circuits for bias adjustment and amplification factor adjustment separately, adopting a tandem type variable resistors for the preparation of respective adjustment and making the voltage dividing ratio equal to each other. CONSTITUTION:The specifications of the variable resistors are selected the same to each other so that the voltage division ratio of a 1st variable resistor 1 and the voltage division ratio of a 2nd variable resistor 2 are always the same at all positions. An output of the resistor 1 is given to an inverting input terminal of a 1st operational amplifier 5 and an output of the resistor 2 is given to an inverting input terminal of a 2nd operational amplifier 4 together with a reference voltage. The output of the amplifier 4 is given to a noninverting input terminal of the amplifier 5. The output voltage V0 of the amplifier 5 is expressed in equation I, where Vs is equal to an input voltage Vi, (a) is the voltage division ratio of the resistor 1 and (b) is the voltage division ratio of the resistor 2. Thus, the bias and the amplification factor are easily adjusted by one adjustment.
Patent JP-S6235510-A (JP)
Inventor: ISHII KAZUO
IPC: H01G9/02
Filed: 1985-08-08
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-H0340053-A (JP)
Title: Control system for plural communication procedures
Inventor: KUBOTA HIROYUKI
IPC: H04L29/06
Filed: 1989-07-06
Abstract: PURPOSE:To efficiently use resources and to efficiently execute the development by dividing the matrix into a common part and discrete parts being different at every procedure at the time of supporting plural pieces of similar communication procedures, and controlling them with a unified procedure by a state transition control part. CONSTITUTION:A common matrix 18 stored in a matrix storage part 17 has information obtained by extracting the part being in common to plural communication procedures in a state transition matrix, and discrete matrixes 19A - 19C have the information of the part being not in common at every communication procedure. A state transition control part 13 retrieves the element concerned in the common matrix 18 by the present state and a generated event, and when it is effective, the common processing routine concerned 14 is called. On the other hand, in the case the element concerned is not effective, one of the discrete matrixes 19A - 19C for the communication procedure controlled at present is selected, the element concerned there in is retrieved, and a discrete processing routine 15 shown by its element is called. In such a manner, the resources are utilized efficiently, the number of programs is decreased, and the manhour for the development of a new communication procedure can be reduced.
Patent JP-H0227133-A (JP)
Title: Device for controlling air-fuel ratio of internal combustion engine
Inventor: NAKANIWA SHINPEI
IPC: F02D41/14
Filed: 1988-07-15
Abstract: PURPOSE:To improve the converging property of feedback control by operating the differential value of the change of air-fuel ratio for each defined minute time and setting a feedback correction factor for each defined minute time using the differential value. CONSTITUTION:A deviation operating means D operates the deviation of an air-fuel ratio detected by an air-fuel ratio detecting means C from a target air-fuel ratio and a time synchronous differential value operating means E operates the differential value of the detected air-fuel ratio for each defined minute time. Since the tendency of air-fuel ratio can be estimated from these deviation and differential value, a time synchronous feedback correction factor setting means F sets a feedback correction factor for each defined minute time based on the deviation and differential value. A fuel injection quantity operating means G operates a fuel injection quantity based on a fundamental fuel injection quantity and a feedback correction factor which are set by a fundamental fuel injection quantity setting means B and the setting means F. A fuel injecting means H is operated by a driving signal corresponding to this fuel injection quantity.