baber/WOPTO huggingface dataset:
Patent JP-H05103493-A (JP)
Title: Speed controller for dc motor
Inventor: MATSUNAGA SUSUMU
IPC: H02P7/292
Filed: 1991-10-04
Abstract: PURPOSE:To effectively phase-control an AC power source by using a thyristor with a relatively simple structure. CONSTITUTION:A decision signal S3 for level-inverting in synchronization with a zero phase of an AC power source is generated from decision signal generating means 7. Gate circuits 8r, 8s are alternately opened and closed in response to variations in R and S phases of the power source by the signal S3 thereby to alternately ignites two thyristors SCRr, SCRs according to a trigger signal S4 from a single phase shifter 6, thereby eliminating ignitions of the thyristors SCRr, SCRs at an erroneous timing.
Patent JP-H10106084-A (JP)
Title: Magnetic device
Inventor: AKIEDA MASAYUKI
IPC: G11B15/675
Filed: 1996-09-30
Abstract: PROBLEM TO BE SOLVED: To reduce the securelar change of a member after the lapse of time caused by a resisting force from cassette so as to improve the reliability of a device by rotating a swing shaft for swing-driving a cassette holding and moving driving part in a friction contacted condition by a bearing formed by a part of a substrate. SOLUTION: In a cassette loading part 1, by a bearing 25 U-shaped in section which is formed by cutting and raising a part of a substrate 4, a part of the swing shaft 7 of a holding driving part 9 for driving a cassette holding part 6 is received. The metallic swing shaft 7 for swinging the holding driving part 9 is received inside the metallic bearing 25 and rotated in a friction contact condition. Thus, a force acted on the swing shaft 7 connected to the holding and moving driving part 9 given by a resisting force from a cassette 5 is reduced and, even if the cassette 5 is frequently placed and held in a recording/ reproducing position for a long time, the change of a related member such as a side plate after the lapse of time is greatly reduced and the reliability of the cassette loading part, and thus the entire device, is improved.
Patent JP-H09101722-A (JP)
Title: Image forming device
Inventor: HAMANO SHIGEMICHI
IPC: B65H7/02
Filed: 1995-10-04
Abstract: PROBLEM TO BE SOLVED: To prevent image-forming from being executed on an image forming condition which is not suitable for transfer material by stopping an image forming sequence in the case of the transfer material where different kinds of transfer material coexist. SOLUTION: A paper thickness detection part S5 is provided with a displacing amount detecting means 100 and a paper thickness detecting roller 56. Then, a paper thickness value KN expressing the thickness of the first transfer material P is decided. In the case of forming the image on the N-th (N≠1) transfer material, K1 being the paper thickness value of the first transfer material P is compared with the paper thickness value KN of the second and succeeding transfer material P.  In the case a difference between them largely exceeds a previously set error range, an operation part gives a warning that the transfer material P is coexistently placed by using a transfer material coexistently placing warning means in a system controller even if plural sheets of transfer material P to which image-forming must be performed are left thereafter, whereby a resist roller 56 is turned off, image-forming is executed till the turn of the transfer material P at which the coexistently placing is judged and the image forming sequence is stopped by an image forming stopping means in the system controller.
Patent JP-H04134731-A (JP)
Title: Optical recording and reproducing device
Inventor: SHINODA MASAYUKI
IPC: G11B7/09
Filed: 1990-09-26
Abstract: PURPOSE:To reduce the number of optical elements and to miniaturize the whole device by detecting all signals with a signal detecting prism and one photodetector having 9-divided light receiving areas. CONSTITUTION:Reflected light from a recording medium 6 is reflected and transmitted by and through a half mirror 4, and this reflected light is transmitted through a 1/2-wavelength plate 7 to come out. The outgoing light from the 1/2-wavelength plate 7 is turned into convergent light by a convex lens 13, and is incident as a 1st light beam upon a right-angled triangle prism 15, while an S-polarization component is emitted as a 2nd light beam. On the other hand, a P-polarization component is split spacewise into two as 4th and 5th light beams by a beam splitter prism with its beam splitting surfaces to be emitted and incident upon the 9-divided photodetector 18. Now, when the relative position between an objective lens 5 and the information recording medium 6 is changed, the three incident light beams upon the 9-divided photodetector 18 become large or small in light beam diameter with contrary relation to each other. The sum and differences, etc., of these light beams in light quantity are detected. By this method, the number of optical parts is reduced, and the device is miniaturized.
Patent JP-H03119361-A (JP)
Title: Electrophotographic sensitive body
Inventor: ONO HITOSHI
IPC: C07D521/00
Filed: 1989-10-03
Abstract: PURPOSE:To obtain an electrophotographic sensitive body having high sensitivity and high durability by incorporating a specified bishydrazone compd. CONSTITUTION:A bishydrazone compd. represented by formula I is incorporated into a photosensitive layer. In the formula I, each R<1> and R<2> is H, lower alkyl, etc., and each of Q<1> and Q<2> is aryl or a heterocyclic residue. The resulting photosensitive layer may be a phtotsensitive layer contg. the bishydrazone compd. in a binder or further contg. a dyestuff acting as a sensitizer and an electron with-drawing compd. or a photosensitive layer contg. the bishydrazone compd. and phtotconductive particles which generate electric charge carriers with high efficiency by light absorption in a binder. A sensitive body having high sensitivity and superior durability can be obtd.
Patent JP-2001083805-A (JP)
Title: Image forming device and image forming method
Inventor: KAGAWA TOSHIAKI
IPC: G03G15/10
Filed: 1999-09-13
Abstract: PROBLEM TO BE SOLVED: To obtain an image forming device excellent in environmental safety and capable of enhancing resolution and saving energy. SOLUTION: The inside of a ferroelectric substance belt 10 having a ferroelectric substance layer 10b on a surface is uniformly internal-polarized by giving a real electric charge -Q by the corona discharge of a corona discharging device 20 (a). Then, the belt is irradiated with a laser beam L by an image writing device, so that the internal polarization of an irradiated part H and the real electric charge are erased (b). Next, water-liquid developer in which water is used as carrier liquid and whose environment safety is excellent on a developing roller 42 is brought into contact with the ferroelectric substance layer 10b.  Since the water-liquid developer is made conductive, the real electric charge on the surface of the ferroelectric substance layer 10b is neutralized and a latent image is given, and a toner particle T in liquid developer is simultaneously moved to the ferroelectric substance layer 10b by electrophoresis, so that the latent image is developed (c) and (d).
Patent JP-S63113333-A (JP)
Title: Method and apparatus for measuring core eccentricity
Inventor: SHIBATA NOBURU
IPC: G01M11/00
Filed: 1986-10-31
Abstract: PURPOSE:To calculate eccentricity of a core section in a non-destructive manner, by applying bending to an optical fiber to be measured to measure changes in frequency shift of a Brillouin scattered light. CONSTITUTION:A prospecting luminous flux emitted from a light source 1 with a narrow frequency spectrum is made incident on an optical fiber 3 and is combined with an exciting luminous flux from an exciting light source 5 being propagated in the opposite direction to each other to generate a Brillouin scattered light while the prospecting luminous flux is made to propagate in the same direction of the Brillouin scattered light. A bend with a fixed radius is applied to the fiber 3 with a bending applicator at a desired position along the length thereof 3. The oscillation frequency of the prospecting light source 1 is changed and the frequency is swept within an area where a light frequency shift of the Brillouin scattered light is generated. Then, heterodyne detection is performed using a local oscillation light source 9 to measure a frequency spectrum at which a Brillouin light amplification occurs thereby detecting core eccentricity.
Patent JP-H10108159-A (JP)
Title: Multimedia information serving device
Inventor: NISHIYAMA MASATERU
IPC: H04N21/231
Filed: 1996-09-30
Abstract: PROBLEM TO BE SOLVED: To provide the multimedia information serving device in which a wait time till multimedia information is served is eliminated and each user individually controls the information. SOLUTION: The device is provided with a plurality of memories each stores a plurality of division data obtained by dividing multimedia information in terms of a prescribed time respectively and to which a plurality of absolute addresses E00-Enn are sequentially given and with an information input output control section 2 that is connected to a plurality of the memories and has a plurality of input terminals A, B,..., m and a plurality of output terminals X, Y,..., n. When the information input output control section 2 receives an information service request from any of the input terminals A, B,..., m, the control section 2 reads a plurality of division data from a plurality of the memories in the order of absolute addresses and provides an output of the data to any of a plurality of the output terminals X, Y,..., n.  In this case, the information input output control section 2 stores relative addresses of a plurality of the division data decided based on an information service start time of a plurality of the division data to any of a plurality of the output terminals.
Patent JP-H04136082-A (JP)
Title: Double-coated adhesive tape for polyvinyl chloride material
Inventor: KAI HISAYA
IPC: C09J7/02
Filed: 1990-09-27
Abstract: PURPOSE:To obtain the title tape which is reusable by remelting without discarding a PVC material and a double-coated adhesive tape as industrial wastes by using a PVC film as a base material and coating both faces thereof with a pressure-sensitive adhesive having a gel fraction of a specified range. CONSTITUTION:A process for preparing a double-coated tape by using a film wherein PVC is a main ingredient as a base material and coating both faces with a pressure-sensitive adhesive, wherein the gel fraction of the pressure- sensitive adhesive is adjusted to range from at least 10% to at most 80%. A remeltable double-coated pressure-sensitive tape can be obtd. thereby. The pressure-sensitive adhesive as well as the PVC film become remeltable by specifying the gel fraction as described above. An example of the pressure-sensitive adhesive wherein the gel fraction is easily adjusted like this is a copolymer wherein a 3-10C alkyl acrylate is a main ingredient. Up to the present time, the lap joint of a double-coated pressure-sensitive adhesive tape has been cut off and discarded, but the lap joint of this tape can be melted again to prepare a product again and is reusable completely, and therefore it is extremely desirable from the viewpoints of environmental pollution and cost.
Patent JP-H0596515-A (JP)
Title: Method and device for manufacturing spiral bar-like material
Inventor: SAKANO TAKAO
IPC: E04F11/02
Filed: 1991-10-07
Abstract: PURPOSE:To efficiently and precisely manufacture spiral bar-like material. CONSTITUTION:Bar-like plate 3 is curved in the direction of the thickness of the plate due to the peripheral speed difference between rollers 1 and 2 on both sides of the plate by passing the bar-like plate 3 between a pair of parallel rollers 1 and 2. At the same time, the bar-like plate 3 is curved in the direction of the width of the plate with a large number of helical teeth 4, which are provided in the direction oblique to the axis of the roller 1. A plurality of bar-like plates 3 curved spirally are overlapped through adhesive to one another so as to be wound round the cylindrical surface of a forming mold in the direction oblique to the axis of the mold in order to form spiral bar-like material.
Patent JP-2000066404-A (JP)
Title: Radiation sensitive resin composition
Inventor: KOBAYASHI HIDEKAZU
IPC: G03F7/039
Filed: 1998-09-11
Abstract: PROBLEM TO BE SOLVED: To attain high sensitivity to far UV (a low quantity of exposure energy) and to ensure superior resolution and a superior pattern shape by incorporating a resin having specified repeating units and a radiation sensitive acid generating agent. SOLUTION: The radiation sensitive resin compsn. contains a resin having repeating units formula I and repeating units of formula II and a radiation sensitive acid generating agent. In the formulae, R1 and R2 are each H of methyl. The resin has a specified 3-oxo tert. ester structure of a carboxylic acid in the repeating units of the formula II and the 3-oxo tert. ester structure is readily dissociated in the presence of an acid to form a carboxyl group. The repeating units of the formula I in the resin promote the acid dissociation reaction of the 3-oxo tert. ester structure in the repeating units of the formula II. The phenolic hydroxyl group in each of the repeating units of the formula I must be in the 4-position so that the units produce a high promoting effect.
Patent JP-H03179028-A (JP)
Title: Preparation of hybridized acrylic star polymer having polysiloxane core
Inventor: HARII JIYOSEFU SUPINERI
IPC: C08G77/42
Filed: 1990-09-29
Abstract: PURPOSE: To obtain an acrylic star polymer with easily controllable hardness, flexibility, etc., and with polysiloxane core by a method wherein a terminal- polyfunctional alkoxysilyl group-contg. acrylic polymer-arm formed by group transfer polymn. is crosslinking-polycondensed.  
     CONSTITUTION: An alkoxysilyl group-contg. (meth)acrylate [e.g. 3-(trimethylsilyl)- propylmethacrylate] and a (meth)acrylate are group transfer-polymerized to obtain a linear (meth)acrylate block copolymer arm contg. crosslinkable polyalkoxysilyl groups on the ends of a molecule. The alkoxysilyls of this polymer are crosslinked to form a polysiloxy core and to obtain a composite acrylic star polymer with the polysiloxane core. 
     COPYRIGHT: (C)1991,JPO
Patent JP-H02104345-A (JP)
Title: Ultrasonic treatment device
Inventor: WATANABE NOBUHIKO
IPC: A61B17/22
Filed: 1988-10-14
Abstract: PURPOSE:To construct a deaerating device in small size and compact the whole configuration by allowing a heating means to perform deaeration of ultrasonic wave transmissive liquid stored in an ultrasonic wave generating element. CONSTITUTION:To the water temp. in an ultrasonic wave generating element 3 is rased by heating by a heater 16, and attainment of the boiling point is sensed by a thermosensor 11, and a CPU 14 sends signal to a heater control circuit 15 to stop the heater 16. When the transmissive liquid in the ultrasonic wave generating element 3 gets rid of air, an air bleeding valve 25 is closed. Thereby the transmissive liquid in the generating element 3 becomes deaerated water. This is followed by deaeration of refill water by a deaerating device 9 in order to swell a water bag 4 at medical treatment, wherein the air in a deaerating tank 9a filled with water to be deaerated is exhausted by a vacuum pump 9b, and the deaerated water passed to a constant temp. water trough 8 is delivered to the ultrasonic wave generating element 3 through a pressure adjusting device 7 and solenoid valves 22, 20, and all air is exhausted from the air bleeding valve 25. After all air is exhausted, the air bleeding valve 25 is closed.
Patent JP-H0899646-A (JP)
Title: Torque detecting device for motor-driven power steering
Inventor: HAYASHI YASUYUKI
IPC: B62D5/04
Filed: 1994-09-29
Abstract: PURPOSE: To simplify an electric control circuit by meshing a pinion, integral with the rotary shaft of a rotary potensiometer, with a rack formed at the outer periphery of a sleeve. CONSTITUTION: A pinion 32 is fittingly fixed to the rotary shaft 31 of a rotary potentiometer provided at a steering gear box 6, and the pinion 32 is meshed with the rack of a sleeve 24. When the sleeve 24 is elevated, the pinion 32 and the rotary shaft 31 are rotated so as to detect the relative turning angle difference between an input shaft 10 and an output shaft 11 corresponding to steering torque acting upon a torsion bar 14 by the elevating quantity of the rack 27 and in its turn by the steering of a steering wheel. Steering torque, that is, the relative turning angles of the input shaft 10 and output shaft 11, is thus detected electrically by the rotary potentiometer, and the output shaft 11 can be rotated by the power of an electric motor 22. Front wheels can therefore be steered easily.
Patent JP-H10102979-A (JP)
Title: Method for constructing tunnel and gate for passing excavating machine used in the method
Inventor: IWASA MASAMI
IPC: E21D9/06
Filed: 1996-09-30
Abstract: PROBLEM TO BE SOLVED: To eliminate the need for foundation improvement and increase the efficiency and safety of operations. SOLUTION: Openable slide gates are provided on the portions of the respective interior walls of a starting vertical shaft 2 and a goal vertical shaft 4 where an excavating machine 15 starts and arrives, and an entrance chamber 13 and an exit chamber serving as means to protect the insides of the vertical shafts are provided adjacent to the slide gates to pass the excavating machine through the chambers when performing operations. Therefore, environmental pollution can be prevented, difficult work to be done by operators can be eliminated, and operational safety enhanced.
Patent JP-H06111043-A (JP)
Title: Card and method for adjusting sensor position
Inventor: HIRASAWA KENJI
IPC: B42D15/10
Filed: 1992-09-29
Abstract: PURPOSE:To obtain the card which can execute easily and surely position adjustment of a sensor, and the position adjusting method for the sensor using this card. CONSTITUTION:In a magnetic card reader which is provided with a signal source 12 peculiar to a card in a reference dimension A position deviated from a magnetic stripe 11 of a magnetic card 1, and detects the intrinsic signal source 12 by a sensor 3 at the time of using the magnetic card, the sensor 3 is supported so that its position can be adjusted, allowed to correspond to a position deviated from the magnetic stripe 11 of the magnetic card 1, and an adjustment card 2 provided with different reference signal sources 22, 23 of two lines by setting the reference dimension A as a boundary from a card end 2a is inserted into the card reader, outputs of the reference signal source 22, 23 are detected by the sensor 3, respectively, and a place where output levels of the respective signals are aligned with each other is fixed as a sensor fixed position.
Patent JP-H09101131-A (JP)
Title: Grinding wheel state evaluation method
Inventor: KAI SATOSHI
IPC: B24B49/00
Filed: 1995-10-06
Abstract: PROBLEM TO BE SOLVED: To measure a grinding wheel state in a state close to actual working on a working machine, and evaluate whether truing and dressing are conducted on the grinding wheel in a desirable state, or not. SOLUTION: In a working in which grinding is conducted by the corner portion 3 of a cylindrical grinding wheel 1 rotating around a shaft 1a, an optical displacement sensor 4 provided in non-contact opposite to the grinding wheel corner portion 3 is relatively moved against the grinding wheel 1 in an arrow sign 5 direction. Thereby, in the rotation stop state of the grinding wheel 1, a protrusion amount of the abrasive grain is measured from the difference of the unevenness and the reflection rate between diamond grains and grinding wheel bond.  In the rotation state of the grinding wheel 1, the unevenness and rotation fluctuation are measured, further, the flatness of the tip of the grinding wheel of the corner portion 3, which is a portion for grinding, is measured so as to measure the roughness of the working surface, and it is judged whether the grinding wheel 1 is trued in a required state in which aimed working accuracy can be attained, or not.
Patent JP-2000089667-A (JP)
Title: Algorithm generation type secret key encryption system
Inventor: SHIMIZU AKIHIRO
IPC: G09C1/00
Filed: 1998-09-14
Abstract: PROBLEM TO BE SOLVED: To keep decipherment attack to criptograph difficult by generating an algorithm through combining arbitrary elements based on the algorithm generation secret key in secret key encription systems represented by DES and FEAL. SOLUTION: In a secret key encryption system generating an algorithm based on the algorithm generation secret key, this algorithm generation type secret key encryption system contains a parameter input process in which the algorithm generation secret key is accepted, an element identification process in which an element from an element group stored in a data base is identified and taken out based on the above-mentioned algorithm generation secret key, and an algorithm generation process in which a necessary encription algorithm is generated by combining the element identified with the above-mentioned algorithm generation secret key.
Patent JP-S63114237-A (JP)
Title: Structure of solder electrode
Inventor: KOMA KOTARO
IPC: H01L31/12
Filed: 1986-10-31
Abstract: PURPOSE:To prevent easy separation of an aluminum wiring film due to the formation of a reacting layer composed of tin and aluminum at an interface with a semiconductor substrate, by forming a titanium film on the aluminum wiring film, forming a silver film on the titanium film, and forming a solder layer on the silver film. CONSTITUTION:A titanium film 9 is formed on an aluminum wiring film 7. A silver film 10 is formed on the titanium film 9. A solder layer 12 is formed on the silver film 10. The titanium film 9 formed on the aluminum wiring film 7 enhances adhesion of the aluminum wiring film 7 and the silver film 10. The silver film 10 suppresses the reaction of the titanium film 9 and tin in the solder layer 12. Intrusion of the tin in the solder layer 12 into the aluminum wiring film 7 through the silver film 10 is suppressed by the titanium film 9. Thus the formation of a reacting layer of the aluminum and the tin at the interface between the aluminum wiring film 7 and a semiconductor substrate 1 is prevented, and easy separation of the aluminum wiring film 7 from the semiconductor substrate is prevented.
Patent JP-H04135906-A (JP)
Title: Active suspension control device
Inventor: SHIBUYA HIDEYUKI
IPC: B60G17/015
Filed: 1990-09-27
Abstract: PURPOSE:To restrain pulsations of fluid pressure on both supply and return sides and to prevent occurrence of uncomfortable sound, by setting the phases of dither signals for pressure control valves, respectively, to values which are different from each other, in an active suspension control device in which a high frequency dither signal is superposed with an attitude variation restraining instruction value so as to control a pressure control valve. CONSTITUTION:A controller 39 receives detection values y'', x'' and v from a lateral acceleration sensor 35, a longitudinal acceleration sensor 36 and a vehicle speed 37, and delivers a control signal CS to a switching circuit 41b in a dither signal generating circuit, 41, and also delivers current instruction values CFL to CRR for restraining rolls and pitches of a vehicle body, to D/A converters 41FL, 41RR. Accordingly, a dither signals D1 from a sinusoidal wave oscillator 41 passes throgh the switching circuit 41b, and further, a inverter 41c delivers a dither signal D2 having a phase which is different from that of the former dither signal by 180 deg. These dither signals D1, D2 are superposed with the restraining current instruction values by adding circuits 43FL to 43RR so as to control valves 13FL to 13RR.