baber/WOPTO huggingface dataset:
Patent JP-2000164438-A (JP)
Title: Power transformer
Inventor: ISHIKITA TOSHIO
IPC: H01F30/00
Filed: 1998-11-24
Abstract: PROBLEM TO BE SOLVED: To reduce the waveform distortion of a power supply voltage and the loss of a transmission line by making the primary- and secondary-side currents of a power transformer, which is particularly used for audio equipment, etc., and contains less amounts of harmonic components by suppressing the peak values of the currents. SOLUTION: In a power transformer in which a primary winding C1 and a secondary winding C2 are concentrically rolled around a toroidal first core 1, either one of the windings C1 and C2 is wound as a lower-layer winding 2, a cylindrical core 4 having a void 5 is arranged on the internal surface of the lower-layer winding 2, and the other winding is rolled so as to wrap the lower-layer winding 2 and core 4 as an upper-layer winding C2.
Patent JP-H10168322-A (JP)
Title: Sound-proofing material for dash panel
Inventor: TSUCHIYA KOICHI
IPC: C08J9/10
Filed: 1996-12-12
Abstract: PROBLEM TO BE SOLVED: To obtain the subject material by mainly including asphalt so as to afford good vibration-damping performance both in low- and high-temperature ranges, good flexural rigidity and to be used in thin-walled form. SOLUTION: This sound-proofing material comprises (A) 10-40wt.% of asphalt, (B) 5-15wt.% of a thermoplastic elastomer (pref. a styrene-based block copolymer -20 to 0 deg.C in glass transition temperature), (C) 3-5wt.% of a synthetic rubber, (D) 4.5-6wt.% of a cross-linking agent (pref. sulfur), (E) 3-4wt.% of a foaming agent (pref. azodicarbonamide), (F) 3-6wt.% of a tackifier (pref. a hydroxyl- terminated liquid rubber), (G) 10-25wt.% of a plasticizer (pref. process oil), and (H) 20-40wt.% of a filler (pref. calcium carbonate).
Patent JP-H01170812-A (JP)
Title: Optical position and speed detector
Inventor: TERAJIMA SHIGEO
IPC: G01P3/42
Filed: 1987-12-25
Abstract: PURPOSE:To continuously detect position information of a moving body by continuously changing the quantity of light of the light beam, which is emitted from a light emitting body and is made incident on a photodetector through a transmitted light quantity control plate, in accordance with the extent of movement of the moving body. CONSTITUTION:The light beam emitted from a light emitting body 1 is made incident on a photodetector 2 through a density gradient plate 4 and is converted to an electric signal, and this signal is inputted to a current-voltage converting circuit 5. The density of the density gradient plate 4 is linearly changed from an end part 4a to an end part 4b, and the position of the moving body to the zero point is clarified when the correspondence position between a prescribed position of the density gradient plate 4 and the light emitting body 1 and the photodetector 2 is defined as the zero point to standardize the initial value. The circuit 5 sends a position signal to a terminal 8, and it is inputted to a differentiating circuit 6 to take out a speed signal. When the density gradient plate 4 is moved in the direction of an arrow in accordance with movement of the moving body, the quantity of light which is transmitted through the density gradient plate 4 to reach the photodetector 2 is linearly reduced and the level of the position signal is reduced; and thus, the extent of movement of the moving body is detected.
Patent JP-H01174182-A (JP)
Title: Picture coding transmission system
Inventor: ASANO KENICHI
IPC: H04N19/60
Filed: 1987-12-28
Abstract: PURPOSE:To attain normal communication regardless of the decoding processing capability at the reception side by sending a timewise decoding processing capability at the receiver side to an opposite station together with a picture data and controlling the timewise interval of the data transmission of the sender side based on the information. CONSTITUTION:An own station decoding capability information generation section 16 generates the information representing the timewise capability of the decoding processing at the reception side of its own station. The information is multiplexed on the decoded picture data/dummy data by a multiplex section 17 and sent to a transmission line via a transmission line interface section 11. The information representing the decoding processing capability of an opposite station is separated from the signal inputted through the transmission line by a demultiplexer section 19 at the receiver side and a transmission operation control section 18 is controlled based on the information to control the time interval of data transmission of the sender side.
Patent JP-H09134608-A (JP)
Title: Lighting system for image pickup
Inventor: KATSUMATA HIROFUMI
IPC: F21V11/00
Filed: 1995-11-08
Abstract: PROBLEM TO BE SOLVED: To variably set the lighting direction and the area by a single lighting system, and realize a proper lighting condition according to an image pickup object by individually and selectively setting voltage impression on respective segments of a liquid crystal panel. SOLUTION: A lighting system 1 for an image pickup has a light source 3 and a liquid crystal panel 5 arranged in front of it. The liquid crystal panel 5 has longitudinally and laterally matrix-shaped segments 7, and impression voltage on the segments 7 is selectively set, and a light transmissive part C and a light cutoff part D are generated, and a prescribed light projecting pattern is formed. Voltage impression on the respective segments 7 is individually and selectively set, and in the panel 5, the respective segments 7 are set as a single pixel, and the transmissive part C and the cutoff part D are created. A part corresponding to the light cutoff part D becomes a dark part, and only a part corresponding to the light transmissive part C is lighted up.  Lighting is performed by a light projecting pattern corresponding to a shape of the light transmissive part C, and the lighting direction and the area can be delicately and variably set by adjusting a position, the area and a shape of the light transmissive part C.
Patent JP-H01173483-A (JP)
Title: Disk device
Inventor: TAKAHASHI TADASHI
IPC: G11B21/10
Filed: 1987-12-28
Abstract: PURPOSE:To improve the accuracy of a tracking servo by tracking-controlling the position of a recording/reproducing head device based on data recorded in a memory means at the time of the scanning of plural data tracks. CONSTITUTION:When plural data tracks TD are scanned, based on tracking error data corresponding to the eccentricity and deformation to a disk medium 1 obtained and stored by over-sampling the data read from the servo area of the arbitrary data track TD, a recording/reproducing head device 7 is tracking-controlled. Consequently, in a part other than the servo area, the recording/reproducing head device 7 is tracking-controlled. Thus, even if the servo area provided on the data track TD is made smaller, the smooth and correct tracking servo can be carried out.
Patent JP-H11168046-A (JP)
Title: Charge beam exposure method
Inventor: NAKASUGI TETSUO
IPC: H01J37/305
Filed: 1997-12-03
Abstract: PROBLEM TO BE SOLVED: To prevent the charging of a resist, without increasing a process, for eliminating beam dislocation and to improve exposure precision. SOLUTION: In an electron beam exposure method for forming a desired pattern for a resist, chemically amplified-type resist 23 generating acid by the subjecting electron beam formed on a Si oxide film 22 on a Si substrate 21, the entire surface of the resist 23 is irradiated with an electron beam 24 of low accelerating voltage, and a conduction layer 25 is formed on the surface of the resist. Then, a desired pattern is exposed on the resist 23 through having the electron beam of high accelerating voltage irradiated in a state where the conduction layer 25 on the surface of resist is grounded.
Patent JP-H11168755-A (JP)
Title: Stereoscopic video image-pickup device
Inventor: OGINO SHIGERU
IPC: G03B35/08
Filed: 1997-12-03
Abstract: PROBLEM TO BE SOLVED: To provide a stereoscopic video image-pickup device through which a photographer can easily recognize when photographing whether or not a main object is within a fusable image range. SOLUTION: A calculation means 304 calculates the distance of an image forming available range, based on a base line length and a conversion angle or the like of optical systems 101, 102 of a stereoscopic camera 1 under the assumption that the distance of fusable image forming on a display screen is a distance between one's pupils (about 65 mm) or less in a depth direction and about 20 cm in front of the eyes in this side direction. On the other hand, calculation means 301-303, 307, 305 calculate a distance up to an object indicated by a sight line based on outputs from line of sight detection means 203, 204, and whether or not the distance is within an image forming available range is displayed on an image display means 2.
Patent JP-H10173420-A (JP)
Title: Fixed antenna attaching structure
Inventor: KIKUCHI YOSHIFUMI
IPC: H01Q1/24
Filed: 1996-12-13
Abstract: PROBLEM TO BE SOLVED: To protect an antenna and to improve assembling workability by providing a sufficient rigidity against dropping of an antenna cover or the like in a fixed antenna attaching structure in a portable wireless telephone set or the like. SOLUTION: A transmitting/receiving element 22 externally attached to the body case of a portable wireless telephone set or the like and connected to a printed wiring board in this body case is covered and protected by the antenna cover 21. An antenna fixing hub 15 is provided in, for example, the bottom case 12 of the body case, and the base end part of the antenna cover 21 is engaged with its antenna attaching hole 15b. A barring structure is formed by a lock protruding part 21d which is provided at the base end part of the antenna cover 21, and a relief recessed groove 15c which is provided on the hole side of the antenna attaching hole 15b on the bottom case 12 to avoid the interference of this lock protruding part 21b, or the like.  After engaging, the lock protruding part 21d is position-shifted from the relief recessed groove 15c by turning by a proper turning angle, so that the antenna cover 21 is stably fixed in the state where slip-out the turn from the body case 10 is restrained.
Patent JP-H07191248-A (JP)
Title: Lens structural body
Inventor: HODAKA HIROSHI
IPC: G02B7/02
Filed: 1993-12-27
Abstract: PURPOSE:To provide a lens structural body which is capable of preventing generation of strain according to thermal deformation, permits easily assembling operation and exchange of the lens itself and is applicable to products of a small lot and high additive value. CONSTITUTION:The stress according to the thermal deformation of the lens 11 is absorbed by an elastic member 15 disposed between the outer circumference of the lens 11 and a holding ring 12 and, therefore, the generation of the strain in the lens 11 is prevented. Since the holding ring 12 is mounted at a holding frame 13, the removal of the lens 11 together with the holding ring 12 from the holding frame 13 is possible. Then, the easy exchange of the lens with another normal lens is possible even if a defect arises in the lens 11. The operation to inject an adhesive which is the elastic member 15 between the outside circumference of the lens 11 and the inside circumference of the holding lens 12 is carried out in a wide working space separately from the holding frame and, therefore, the assembling operation including the injecting operation is easy.
Patent JP-H11166965-A (JP)
Title: Angle measurement signal processing device and angle measurement signal processing method in it
Inventor: OKAMURA ATSUSHI
IPC: G01S3/46
Filed: 1997-12-03
Abstract: PROBLEM TO BE SOLVED: To obtain an angle measurement signal processing device for obtaining a more accurate incidence angle estimation result and an angle measurement signal processing method in the device when a plurality of coherent waves enter an actual array antenna that is not an equal interval linear array. SOLUTION: A correlation matrix Bc RBcH is calculated by an array conversion matrix B and a correlation matrix R, the correlation matrix Bc RBcH is subjected to space smoothing processing and a correlation matrix Rc is calculated by a second space smoothing matrix calculation means 17, the correlation matrix Rc is subjected to MUSIC angle measurement processing and the incidence angle of waves is estimated by a second MUSIC angle measurement processing means 18, and the incidence angle of waves is displayed by an angle measurement result outputting means 19.
Patent JP-H06318814-A (JP)
Title: Microstrip antenna
Inventor: ANDOU ATSUYA
IPC: H04B1/38
Filed: 1993-12-27
Abstract: PURPOSE:To suppress fluctuation in the effective gain of the antenna and to improve speech quality by providing a mechanism with which a 1st dielectric board is rotated on a 2nd dielectric board while a radiation element of the 1st board and a strip line of the 2nd board keep electromagnetic coupling. CONSTITUTION:When the antenna is mounted onto a portable radio telephone set and the telephone set is in use, an antenna radiation element 7 is turned by a weight 7. When the radio equipment is stood upright, the weight 7 is located at a lower end of the antenna by a gravity and then the radiation element 3 has a sensitivity to a vertically polarized wave. Suppose that a radio equipment case is put on a head of the user of the radio equipment with a tilt of nearly 60 deg.. In this case, the radiation element 3 is turned around an antenna rotary shaft 8 by the weight 7 and moved in a direction in which a sensitivity has the vertically polarized wave. That is, even when a tilt angle of the portable radio equipment is manually fluctuated depending on the user, the radiation element 3 moves to have a sensitivity for the vertically polarized wave at all times and the polarized wave characteristic is maintained, then the antenna effective gain is made constant.
Patent JP-H08172343-A (JP)
Title: Method for constituting iir type digital filter
Inventor: FUKUI TAKAO
IPC: H03H17/04
Filed: 1994-12-15
Abstract: PURPOSE: To suppress the generation of a DC limit cycle and to prevent the deterioration of the SN ratio due to the generation of the DC limit cycle. CONSTITUTION: An output Y(n) from an adder 26 and a dither output from a dither generation circuit 2 are supplied to an adder 1. The output Y(n) of the adder 26 is mixed with a bit (the digit of LSB/2) lower by 1 bit than the LSB of shorter word length on hardware by the adder 1 and the mixed output is supplied to a delay circuit 30. When the shorter word length is 32 bits, the word length of a RAM used for the circuit 30, dither is mixed into the 33rd bit. The lower bits of the dither-mixed data Y(n) are omitted so that the number of bits of the data Y(n) corresponds to that of the circuit 30 and the omitted output data Y'(n-1) are supplied to the circuit 30 and stored.
Patent JP-H11147226-A (JP)
Title: Method for evaluating configuration of product for die design
Inventor: MIYAKI KUNIHIRO
IPC: B29C33/38
Filed: 1997-11-18
Abstract: PROBLEM TO BE SOLVED: To provide a method for evaluating a die configuration to design a die wherein a male die and a female die can be efficiently produced and the time required to feed a product can be made shorter. SOLUTION: A release direction of a die is taken as a Z-axis and constituent surfaces of a three-dimensional product model 10 are classified into a surface A wherein all components Z of a normal vector become plus, a surface B wherein all components become minus, a surface C wherein all components become zero, and a surface D wherein pluses coexist with minuses, and further the surface C is classified into a surface C-A, a surface C-B, and a surface C-O, and an undercut part is taken as a surface E to evaluate each of the constituent surfaces of the model 10. And by classifying each surface to be evaluated by coloring, barrier surfaces of a die can be obtained so that male dies and female dies can be easily produced. If the configuration of a product is evaluated in an initial stage of design, a three-dimensional product model can be easily produced without correcting the configuration in a mass-production stage so that the time required to feed a product can be shortened.
Patent JP-H01173709-A (JP)
Title: Semiconductor element and manufacture thereof
Inventor: BITO YOSHIFUMI
IPC: H01L21/86
Filed: 1987-12-28
Abstract: PURPOSE:To obtain the semiconductor element having no deterioration in characteristics caused by the roughness of the surface of a semiconductor by a method wherein a III-V compound semiconductor layer is formed on the Si layer formed on an alumina single crystal substrate. CONSTITUTION:An SOS substrate is obtained by forming an Si layer on an alumina single crystal substrate. A III-V compound semiconductor layer having surface smoothness is formed on the SOS substrate. This semiconductor layer can be obtained by setting an OFF angle and a substrate temperature within the prescribed range of limits. The surface smoothness of the semiconductor element obtained as above is to be set at 0.1S or less. According to this method of manufacture, an Si layer is formed on the surface R of the alumina single crystal using a CVD method. In this CVD method, the OFF angle on the surface of the Si layer is set in the range of 1-8 deg. in the direction from a face 100 to a face 011 using a vapor growth method, and an organic metal thermal decomposition vapor growth method is conducted. As a result, a high luminous efficiency can be obtained when the title semiconductor element is used as a light-emitting element, and a microscopic surface processing can also be conducted when said semiconductor element is used for an IC and the like.
Patent JP-H02178606-A (JP)
Title: Coating method for optical fiber coupler
Inventor: ARIKAWA TORU
IPC: G02B6/28
Filed: 1988-12-28
Abstract: PURPOSE:To make operation extremely easy and eliminate the need for skillfulness and to suppress case breakage by inserting a case which contains the optical fiber coupler into a heat-shrinkable tube which is crosslinked and drawn, and then heating and shrinking the heat-shrinkable tube. CONSTITUTION:The reinforced coupler 5 is inserted into the heat-shrinkable tube 11 which is a little bit longer and a little bit larger in diameter than the crosslinked and drawn case and a heat treatment is carried out to make the heat-shrinkable tube 11 shrink and contact the external surface of the case. At this time, the tube shrinks more at the end parts of the cases to nearly cover the end surfaces, thereby obtaining a coated body 12 with good outward appearance. This coated body 12 is relatively elastic, so the breakage of the inside case is suppressed. Consequently, the operation is easy, the need for skillfulness is eliminated, and the body itself is elastic, so the case is prevented from being broken.
Patent JP-H08169120-A (JP)
Title: Ink jet recording apparatus
Inventor: IKEGAMI HIROKAZU
IPC: B41J2/18
Filed: 1994-12-19
Abstract: PURPOSE: To prevent the generation of non-emission and abnormal emission caused by the accumulation of ink by arranging the ink absorbing material of a cleaning and wiping device in a non-contact state with respect to an ink emitting surface. CONSTITUTION: A cleaning and wiping device consists of an absorbing material 11 having high ink absorbing capacity and the spacer 8b being the container including and supporting the absorbing material 11 and the surface position of the absorbing material 11 is prescribed by the spacer 8b and, when the cleaning and wiping device is present at the position opposed to the emitting surface of an ink head at the time of cleaning, the interval between the emitting surface 2 and the surface of the absorbing material 11 is held to a definite distance (d).  After restoration operation is performed by the pump connected to a cap in order to avoid the generation of abnormal emission, the emission number of times not generating wetting by the formation of an image is predetermined from experiment and the cleaning and wiping device is operated at every definite period corresponding thereto to perform the cleaning of the emitting surface. Therefore, non-wipen parts can be reduced and good absorbing capacity can be always kept.
Patent JP-H09150514-A (JP)
Title: Actuator unit for lamination type ink jet recording head and ink jet recording head using the same
Inventor: USUI MINORU
IPC: B41J2/055
Filed: 1995-11-29
Abstract: PROBLEM TO BE SOLVED: To open piezoelectric vibrators from the blocking by a flexible cable and to limit connection work to one place by connecting the flexible cable to one electrodes of piezoelectric vibrators and providing connection terminals arranged so as to substantially become one row. SOLUTION: Terminals 5, 5' for outside connection are ones connected to electrodes 3, 3' and formed in the central region surrounded by two rows of pressure generation chambers so as to keep electrical insulating relation with respect to common electrodes 22, 22" and connected to the drive electrodes 3, 3' through auxiliary terminals 21, 21'. As a result, the flexible cable can be fixed in a central narrow region and, therefore, both sides thereof can be opened and can be raised from piezoelectric vibrators 4, 4' by a support member. Since the connection terminals 5, 5' are arranged in one row within a narrow range, they can be connected by one soldering work.
Patent JP-H02181312-A (JP)
Title: Self-fusing litz wire
Inventor: TAKAHASHI SHIGEMI
IPC: H01B7/30
Filed: 1988-12-29
Abstract: PURPOSE:To prevent a self-fusing litz wire from being broken at its twisted portion when coiled by twisting together a plurality of insulative wires and providing self-fusing portions for intermittently fixing the insulative wires. CONSTITUTION:A litz wire is composed by twisting together insulative wires 15 each comprising an insulative layer 13 composed of resin such as polyhydantoinester and polyesteramide and a self-fusing layer 14 composed of thermoplastic resin such as epoxy resin and phenoxy resin. Self-fusing bands 16 for intermittently fixing the insulative wires 15 in the longitudinal direction of the litz wire. This self-fusing band 16 functions to fix the insulative wires 15 with each other and also to fix a coil around which the self-fusing litz wire 11 is wound with help of the self-fusing layer 14. The self-fusing band 16 is made of resin the same as the one forming the self-fusing layer 14. Therefore, the litz wire 11 is not broken at its twisted portion when coiled.
Patent JP-2000163772-A (JP)
Title: Objective lens driving device
Inventor: MIYAMORI KENICHI
IPC: G11B7/09
Filed: 1998-11-25
Abstract: PROBLEM TO BE SOLVED: To provide an objective lens driving device in which a high-temp demagnetization is not generated and the enlarging of the size of a device is evaded by reducing the leakage magntice flux of an actuator to magnetic heads while enhancing the driving sensitivity of the actuator. SOLUTION: This device includes an objective lens 2, a lens holder 3 for holding the lens 2, a focusing coil 6 which is constituted integrally with the holder and is for displacing the holder 3 in a focusing direction vertical to the surface of a recording medium, a tracking coil which is constituted integrally with the holder 3 and is for displacing the holder 3 in a tracking direction which is parallel with the surface of the recording medium and also is in the radial direction and a magnetic circuit part 8 which applies a magnetic flux to the focusing coil 6 or the tracking coil and consists of one pair of magnets 10a, 10b in which different poles are disposed to face oppositely each other.  The magnetic force of the latter arranged at a side nearer to the objective lens 2 between the one pair of magnets is set to become smaller than that of the former arranged at a side far from the lens.