baber/WOPTO huggingface dataset:
Patent JP-H06188511-A (JP)
Title: Semiconductor laser element
Inventor: OKUBO NORIO
IPC: H01S5/00
Filed: 1992-12-18
Abstract: PURPOSE:To obtain a ridge waveguide type semiconductor laser element in which degradation of edge is retarded by forming a ridge mesa except a region close to the edge of resonator on the low reflectance side and providing a current uninjected structure at a part of the region. CONSTITUTION:An n-GaAs buffer layer 2, an n-InGaP lower clad layer 3, an n-GaAs lower optical confinement layer 4, a p-InGaAs active layer, a p-GaAs upper optical confinement layer 6, a p-InGaP upper clad layer 7, and a p<+>-GaAs cap layer 8 are deposited on an n-GaAs substrate 1. 20mum region from the low reflectance side edge is then removed from an epitaxial wafer thus obtained by photolithography and a ridge mesa is formed therein. The cap layer 8 is then removed from the 20mum region and a polyimide is buried therein thus attaining a current uninjected structure. The ridge mesa is then filled, on the opposite sides thereof, with polyimide 11 followed by formation of p-electrode 9 and n-electrode 10 thus obtaining a ridge waveguide type semiconductor laser element in which deterioration of edge is retarded.
Patent JP-H11170199-A (JP)
Title: Cutting method for brittle material
Inventor: YAMADA TORU
IPC: B28D5/00
Filed: 1997-12-09
Abstract: PROBLEM TO BE SOLVED: To provide a cutting method for a brittle material capable of cutting under a low pressure even in the case where a high pressure is usually required for cutting because a streak for designating a cutting position provided on a brittle material is a small crack. SOLUTION: In a cutting method for a brittle material where a side face of a brittle material on a column is previously provided with a streak to designate a section to be cut, and then a pressure transmitting cylinder made of a material having Young's modules smaller than the brittle material is arranged on the outer periphery of the brittle material, and the pressure is given to the side of the brittle material through the pressure transmitting cylinder to cut the brittle material at a streak position, in applying pressure to the side of the brittle material through the pressure transmitting cylinder, liquid is sealed between the pressure transmitting cylinder and the side provided with the streak for the brittle material.
Patent JP-2000182474-A (JP)
Title: Keypad assembly mechanism
Inventor: MARK HACHISON
IPC: H04M1/23
Filed: 1999-12-15
Abstract: PROBLEM TO BE SOLVED: To provide a keypad assembly mechanism, which uses an in-mold key mat with high mechanical independence between adjacent keys and with key strokes which are large enough to provide comfortable touch, without the possibility of the keys being depressed by pressure on a casing. SOLUTION: A keypad assembly mechanism is provided comprising a key mat 110, a switch assembling part 11, and an intermediate component member 160 located between the key mat 110 and the switch assembling part 11. The intermediate component member 160 has an opening, which cooperates with the keys 111 of the key mat 110 and an elastic member is attached thereto and extends to the opening. When either of the keys 111 of the key mat 110 is depressed, the pressure is transmitted to the key dome of the switch assembling part 11 via the elastic member.
Patent JP-2000180685-A (JP)
Title: Lens array fixing structure
Inventor: IKEDA MAKOTO
IPC: G02B3/00
Filed: 1998-12-15
Abstract: PROBLEM TO BE SOLVED: To provide a fixing structure capable of quickly fixing a rod lens array to a case body. SOLUTION: A deformed protrusion 22 is partially deformed to a lens array 10. Air is blown out from an air outlet 48 after the deformation to solidify the deformed protrusion 22. Therefore, the lens array 10 stored in a storing groove 21 is caulked from above and substantially prevented from slipping off upward, and the lens array 10 is firmly fixed to a case body 20. The protrusion of thermoplastic resin erected on the opening edge is crushed while being heated by resin welder, the lens array is pressed by the deformed protrusion, therefore, the case body with the lens array can be moved to a next process after the slight time required for deforming the protrusion, and productivity can be improved.
Patent JP-H11235736-A (JP)
Title: Method and apparatus for producing article
Inventor: KOCH MICHAEL
IPC: B29C44/38
Filed: 1998-12-15
Abstract: PROBLEM TO BE SOLVED: To efficiently and rapidly produce a relatively thick plastic product containing gas therein. SOLUTION: A mold cavity 12 is filled with an vol. expanding substance- containing plastic material by the hot runner block 22 being the supply unit engaged with the cavity 12. The filled mold cavity 12 and the hot runner block 22 are moved so as to be separated from each other. Subsequently, a separate mold cavity and the hot runner block 22 are moved so as to be engaged with each other and this separate mold cavity is filled with a vol. expanding substance-containing plastic material by the hot runner block 22. The plastic material is expanded within the mold cavity 12 by the vol. expanding substance while the separate mold cavity is engaged with the hot runner block 22 and the expanded article is taken out of the mold cavity 12.
Patent JP-H06182400-A (JP)
Title: Method for dehydrating sludge
Inventor: MIYAJIMA TORU
IPC: C02F11/14
Filed: 1992-12-22
Abstract: PURPOSE:To provide a method for dehydrating sludge by which dehydration properties of sludge are improved and also the property of cake is improved and dehydrating treatment of sludge is extremely favorably performed. CONSTITUTION:CWM is mixed with sludge generated from a drainage treatment facility. Otherwise CWM and an organic high-molecular aggregating agent are added and mixed therewith. The sludge is aggregated and thereafter dehydrated.
Patent JP-H10174655-A (JP)
Title: Lid of pan with removable knob
Inventor: UNNO KIMIKO
IPC: A47J36/06
Filed: 1996-12-06
Abstract: PROBLEM TO BE SOLVED: To reasonably put a lid of a pan in order by embedding a magnet on the top part of the lid of the pan, providing a magnet on the bottom part of a knob and providing removably the knob on the lid of the pan. SOLUTION: Magnets 3a and 3b are provided on the top part of a lid 1 of a pot and the bottom part of a knob 2 and the surface of the magnet 3a of the lid 1 of the pot is covered with a cover 4. When they are used, the magnet 3b of the knob 2 is put on the magnet 3a of the lid 1 of the pot and is attracted thereon to make them in a body and the lid 1 of the pot is handled by grasping the knob 2 with a hand. On the other hand, when they are stored, the knob part being under a projected condition on the top part of the lid 1 of the pot is made flat by removing the knob 2 and mounting it on the inside of the lid 1 of the pot to stably store the lids 1 of the pots under accumulated condition. It is possible thereby to facilitate arrangement and adjustment by storing the pots and the lids under separately accumulated conditions and to use the lid of the pot as a plate like a dish.
Patent JP-H06193138-A (JP)
Title: Contact-bonding and joining method for pca concrete column
Inventor: ABE NOBORU
IPC: E04B1/22
Filed: 1992-12-28
Abstract: PURPOSE:To improve the contact-bonding performance and reliability of a PCa concrete column by a method wherein sheath matching ability between upper and lower PCa concrete columns and precision of tightening by a PC steel rod have been improved. CONSTITUTION:An upper PCa concrete column 1b is set on a lower PCa concrete column 1a. A sheath expansion part 2b formed in the lower end part of the upper PCa concrete column 1b is fitted in a sheath protrusion part 2b protruded from the top end of the lower PCa concrete column 1a to form trumpet sheath mechanisms 2a and 2b. PC steel rods 5a and 5b inserted in sheathes 1a and 1b of the upper and lower PCa concrete columns are intercoupled and stretched. A filler M is injected in a clearance between the upper and lower PCa concrete columns 1a and 1b to contact-bond and join them together.
Patent JP-2000179132-A (JP)
Title: Tatami padding coating sheet having mildew proofing performance
Inventor: FUKUNAGA HIDEKI
IPC: A01N25/34
Filed: 1998-12-17
Abstract: PROBLEM TO BE SOLVED: To provide a tatami padding coating sheet forming no mildew even when water or the like spilled on a tatami is adhered to the surface of the tatami padding coating sheet or even when water in a tatami padding is vapored to make condensation on the rear side of the tatami padding coating sheet. SOLUTION: The tatami padding coating sheet having mildew proofing efficiency is constituted of a moisture transmission/impervious sheet containing a mildew proofing agent. If preferable, a mildew proofing agent is added to a composition consisting of polyolefin resin and inorganic filler, and it is so constituted that a laminated body obtained by meltingly adhering a split fabric or a nonwoven fabric to at least one side of a melting extrusion sheet-like substance makes unconfined expansion.
Patent JP-H05178635-A (JP)
Title: Method for separating head of glass fiber
Inventor: OKUDA EIJI
IPC: C03B37/16
Filed: 1991-12-28
Abstract: PURPOSE:To rapidly and easily cut off the bulged heads of many glass fibers without breaking the fiber and to minimize the end of the fiber to be cut off. CONSTITUTION:The shaft 20b of a glass fiber 20 is pierced through many through-holes 24 of a punched metal 22, the bundle of the pierced fibers is placed in a cylindrical case 28 slightly deeper than the length of the fiber shaft, and the bulged head 20a of each fiber is supported by the upper peripheral edge of the through-hole to suspend the fiber. A cutting knife 30 vibrating at high speed in parallel with the knife flank and almost vertically to the knife edge is thrusted along the upper surface of the punched metal to cut the fiber at its neck, and the bulged head is separated.
Patent JP-2001177216-A (JP)
Title: Machining method of printed-wiring mother board, and printed-wiring mother board
Inventor: USAMI SUSUMU
IPC: H05K1/02
Filed: 1999-12-17
Abstract: PROBLEM TO BE SOLVED: To reduce total manufacturing cost of a printed-circuit board. SOLUTION: On a printed-wiring mother board 11, a reference mark 16, a push-back reference hole 13, and a mark for reference holes 14a to 15b are printed with a land or a pad 12a and a pattern 12b, the push-back reference hole 13 and the reference holes 14a to 15b are punched by an NC punching machine or the like, and a known machining procedure such as etching is carried out. Then, printed circuit boards 1 to 10 are subjected to push-back. An L-shaped cutting mold C, having sides C1 and C2 accurately crossing at right angles, is used for cutting sides 11a and 11b according to the reference holes 14a and 14b. Then, the mother board 11 is rotated by 180 decrees, and the same cutting mold C is used for cutting sides 11c and 11d according to the reference holes 15a and 15b.  The cutting mold C can cut and machine the mother board 11 of various dimensions, thus eliminating the need for preparing various dies, reducing the cost of the dies, and hence reducing the total manufacturing cost.
Patent JP-2001173564-A (JP)
Title: Oil equalizing system of plural compressors
Inventor: OGAWA MITSUO
IPC: F25B1/00
Filed: 1999-12-17
Abstract: PROBLEM TO BE SOLVED: To solve the problem that in the case of two low-pressure shell compressors different in displacement, or in the case where one compressor is a variable displacement compressor, the pressure in the shell of the high displacement compressor becomes low, and the pressure in the shell of the low displacement compressor becomes high, so that refrigerator oil moves from the low displacement compressor to the high displacement compressor to decrease the oil quantity of the low displacement compressor. SOLUTION: The vicinity of the standard oil level of the shell of the low displacement compressor 1 and a suction pipe 3 of the high displacement compressor 2 are communicated with each other, oil separated by oil separators 6a, 6b is stored in a storage tank 7. From the bottom of the storage tank 7, one is communicated with a suction pipe 8 of the low displacement compressor, and the other is communicated with the suction pipe 3 of the high displacement compressor to control the oil quantity in the shells of the respective compressors 1, 2 to a proper quantity.
Patent JP-H05181941-A (JP)
Title: Modeling method for three-dimensional body shape
Inventor: KAIZUKA HIROSHI
IPC: G06T17/00
Filed: 1991-12-27
Abstract: PURPOSE:To make three-dimensional forming operation efficient when the three- dimensional body shape consisting of a smooth free curved surface is formed through deforming operation. CONSTITUTION:This method has a function 12 which determines a smooth sectional polynomial function F (x, y, z) for interpolating weights W (I, J, K) that a user specifies for principal grating points in a three-dimensional X-Y-Z space by determining weights at auxiliary grating points so as to constitute the function F (x, y, z) from the weights. The body surface is a curved surface determined by [(x, y, z); F (x, y, z)= a (constant value)].
Patent JP-H05180665-A (JP)
Title: Method for detecting rotation
Inventor: SHIBATA AKIRA
IPC: H02P29/00
Filed: 1991-12-27
Abstract: PURPOSE:To detect the number of revolutions even if the sensor of one side breaks down, in a method for detecting the number of rotations and the direction of the rotation of a rotor by using two sensors which output signals with different phases. CONSTITUTION:In a rotational signal processing circuit for generating a signal representing the direction and a signal representing the number of rotations of a rotor, using two position sensors which output signals with two phases for detecting the specific position of rotation of the rotor; operation means 6 to 9 are provided. Logical operation is carried out using signals of both position sensors, a signal having the same repetition rate as that of at least one of the signals of the position sensors is generated, and the signal representing the number of rotations of the rotor is obtained by the output signal of the operation means.
Patent JP-2001177259-A (JP)
Title: Acoustic amplifier
Inventor: NAKAMICHI NIRO
IPC: H05K5/00
Filed: 1999-12-20
Abstract: PROBLEM TO BE SOLVED: To efficiently arrange large parts constituting a power source. SOLUTION: A transformer and a smoothing capacitor are arranged along the outer circumference within an almost circular power source part.
Patent JP-H11190079-A (JP)
Title: Interior substrate structure
Inventor: OKANO NOBUO
IPC: E04B1/64
Filed: 1997-12-26
Abstract: PROBLEM TO BE SOLVED: To inexpensively constitute interior substrate structure without providing a moisture-proof layer in the intermediate part by adhering and laminating an interior face material and a heat insulator by a non-permeable wet adhesive to constitute the interior substrate structure. SOLUTION: A face-like heat insulator 14 composed of a synthetic resin foaming body through a non-permeable wet adhesive layer 12 is adhered and laminated on the rear face of an interior face material 10 composed of a plaster board or the like. An applying amount of the non-permeable wet adhesive is 100 g/m<2> or more, preferably 130 g/m<2> or more, film thickness is 30 μm or more and a degree of water vapor permeability is 30 g/m<2> .24 H or less. Thus, indoor humidity invades a wall face inside to prevent dew condensation and volatile organic compound can be prevented from entering a room inside. Interior substrate structure can be inexpensively manufactured without any need for existing a moisture-proof layer between the interior face material 10 and a face-like heat insulator 14.
Patent JP-H11189451-A (JP)
Title: High-strength cement-based composition
Inventor: NAKAMURA SHUZO
IPC: C04B28/02
Filed: 1997-12-26
Abstract: PROBLEM TO BE SOLVED: To obtain a cement-based composition which is excellent in flowability and gives a large strength to the hardened body. SOLUTION: This cement-based composition is obtained by adding a dispersant to cement and aggregate, and the aggregate is granule having <=5 mm particle diameter and an amount of water added is <=25 vol.% and the dispersant has a molecular structure represented by the formula (AO)n -R [AO is a 2-12C oxyalkylene group; R is hydrogen or a 2-12C hydrocarbon group; (AO)n is a polyoxyalkylene group in which average addition molar number (n) of oxyalkylene group is >=30].
Patent JP-H11274366-A (JP)
Title: Lap around mutually connecting member for fine pitch ball grid array
Inventor: ANTHONY CHU
IPC: H05K1/11
Filed: 1998-12-18
Abstract: PROBLEM TO BE SOLVED: To enable simple and effectively connection of semiconductor devices of intermediate or high performance with each other to a board, by separately forming one or more semicircular vias on the edges of the board, and using fine pitch ball grid array. SOLUTION: Individual units are formed, e.g. by separating a printed circuit board. A semicircular, i.e., half via 62 has an aperture 64 as a cylindrical section of an almost semicircular shape. In the semicircular via 62, a circular via 48 is separated into almost halves, and conductive material is arranged along a cylindrical section of a semicircular shape which is generated by cutting the circular via 48 in the longitudinal direction. The semicircular via 62 does not occupy usable space in a signal path forming region of the board. As a result, the space can be used for a chip and for signal path formation. Hence the amount of electrical connection between the top and the bottom of a board 42 is increased.
Patent JP-H05183934-A (JP)
Title: Input and/or output device for transmitting video signal
Inventor: OTA YOSHIHIKO
IPC: H04N9/80
Filed: 1991-12-27
Abstract: PURPOSE:To transmit identification information corresponding to signal forms without providing any new transmission line by transmitting and outputting output chrominance signals obtained by mixing identification information signals and chrominance signals related to video signals. CONSTITUTION:During a vertical blanking period VT of luminance signals related to video signals, output chrominance signals (A) are transmitted and outputted, and these output chrominance signals are obtained by mixing identification information signals (B), which have a rise edge EU and a fall edge ED and have a comparatively low frequency component, and chrominance signals (C), which have a comparatively high frequency component and are related to video signals, so as to transmit and output the identification information signals (B) with a high impedance and to transmit and output the chrominance signals (C) with a low impedance. Namely, since the identification information signal (B) has the rise edge EU and the fall edge ED in the vertical blanking period VT, the output chrominance signals (A) separatable without degrading the quality of the chrominance signals can be transmitted and outputted without affecting validity CC of the chrominance signals (C).
Patent JP-H11194520-A (JP)
Title: Electrophotographic photoreceptor, production thereof, and image forming device using the same
Inventor: ISHIDA KAZUYA
IPC: C08K3/22
Filed: 1997-12-26
Abstract: PROBLEM TO BE SOLVED: To form an image of high image characteristics with few defects, by using an electrophotographic photoreceptor which can be produced to have excellent coatability, has high sensitivity, and cause little decrease in eleotrostatic stability when used repeatedly. SOLUTION: An undercoat layer between an electrically conductive carrier and a photoconductive layer contains water-soluble or water/alcohol-soluble polyvinyl acetal and an inorganic pigment. Titanium oxide is especially used as an inorganic pigment to make the weight ratio of polyvinyl acetal to titanium oxide 1/9-9/1. Moreover, surface treated titanium oxide containing 95 wt.% or less of a titanium oxide ingredient and polyvinyl acetal containing 40 ppm or less of a sodium ion concentration are used. It is desirable to use a photoconductive layer which contains a vinyl chloride-vinyl acetate series copolymer. A solvent having the weight ratio of water to alcohol of 1/9-7/3 is selected as a dispersion medium of coating liquid for the undercoat layer.
Patent JP-H11265588-A (JP)
Title: Eeprom cell provided with screen
Inventor: PIO FEDERICO
IPC: H01L27/115
Filed: 1998-12-18
Abstract: PROBLEM TO BE SOLVED: To enable the protection of an EEPROM cell which is improved with respect to abnormal readouts by allowing the cell to include floating-gate transistors, a first metallic layer over-lapping with a semiconductor substrate and a second metallic layer positioned by being more separated from the substrate than the first metallic layer and allowing the metallic first layer to be arranged so as to be overlapped in major portions of floating gate terminals. SOLUTION: A metallic structure for a screen 50 is arrayed so as to be overlapped on floating gate terminals 30 and covers only the terminals 30 completely. Since it is advantageous that the metallic structure 50 is formed in a first metallic layer, a selection terminal is provided by a poly silicon structure contacting in the relation that it is oven lapped with a metallic structure 242 formed in the first metallic layer in order to lower the low efficiency of a word line. Moreover, it is advantageous in order to obtain a small-sized cell layout that one side of readout terminals 14, 16 or both terminals are provided by a metallic structure to be formed in a metallic layer succeeding to the first metallic layer, that is, the second metallic layer.
Patent JP-H11195244-A (JP)
Title: Optical recording medium and recording/reproducing method therefor
Inventor: KANEKO KAZUHIRO
IPC: G11B7/24
Filed: 1997-12-26
Abstract: PROBLEM TO BE SOLVED: To provide an optical recording medium capable of effectively removing organic dirt stuck to the surface of a substrate and preventing the increase of jitter, and high in reliability. SOLUTION: A protective layer 8 and a titanium oxide layer 9 having light absorption edge in a 400 to 850 nm wavelength region are successively laminated on the surface of the laser light beam incident side of a transparent substrate 2. Then, an optical recording medium 1 is formed by joining layers in which an under dielectric layer 3, a recording layer 4, an upper dielectric layer 5, a reflection layer 6 and a lacquer layer 7 are laminated on the opposite side of the laser light beam incident side of the substrate 2 in this order while the layers 7 are opposed to each other through an adhesive layer 10.
Patent JP-H11195010-A (JP)
Title: Data processor and data processing method
Inventor: WATANABE TORU
IPC: G06T1/20
Filed: 1997-12-26
Abstract: PROBLEM TO BE SOLVED: To adjust the timing of data input and to execute a high speed arithmetic processing by providing a direct path for feeding back an arithmetic processing result. SOLUTION: Data a70 being common to a final row in a lateral direction and a first column in a vertical direction are not read after they are stored in a one block buffer 5 but they are directly transferred from a serial-parallel conversion register 3 at the time of shift from one dimension to two dimension by shift from the lateral direction to the vertical direction. Thus, the processing can be executed while the processing timing of look-ahead on next data is held and a clock can be reduced.
Patent JP-2001180539-A (JP)
Title: Traveling part structure of agricultural working machine
Inventor: OYA TERUMITSU
IPC: B62D55/08
Filed: 1999-12-20
Abstract: PROBLEM TO BE SOLVED: To prevent the sinking of a traveling part. SOLUTION: This structure comprises a lateral pair of crawler type traveling parts, and a plurality of crawlers arranged in each traveling part with a lateral space. Particularly, a drive wheel and a driven wheel are rotatably provided on a truck frame, the crawler is suspended between the drive wheel and the driven wheel to constitute a traveling unit, a plurality of traveling units is arranged in each traveling part with a lateral space, and the drive wheel of each traveling unit is interlocked and connected to a drive shaft.