baber/WOPTO huggingface dataset:
Patent JP-H03242837-A (JP)
Title: Optical pickup device
Inventor: HONMA OSAMU
IPC: G02B13/18
Filed: 1990-02-20
Abstract: PURPOSE:To always obtain a favorable reproducing characteristic by arranging an abberation correcting means to correct high-order abberation whose wave front shape at an exit pupil surface is constant between a laser beam source and an information recording medium. CONSTITUTION:The abberation correcting means 10 to correct the abberation whose front shape at the exit pupil surface can be expressed by rho<3>cos(3phi-alpha) is arranged in radiation light. Namely, the abberation correcting means 10 is a planar optical part arranged between an iris 4 and a collimate lens 3, and its surface shape is provided with projecting and recessed parts proportional to -rho<3>cos(3phi-alpha), and by providing canceling abberation, the abberation is corrected. Thus, both a disk in which analog information is recorded and the disk in which digital information is recorded can be reproduced favorably.
Patent JP-2000243797-A (JP)
Title: Semiconductor wafer, and cutting method thereof, and semiconductor wafer assembly and cutting method thereof
Inventor: SAKIDA HIROYUKI
IPC: H01L21/66
Filed: 1999-02-18
Abstract: PROBLEM TO BE SOLVED: To automatically discriminate the quality of semiconductor chips based on whether or not a magnetic material layer is present on the side of the semiconductor chip, when the semiconductor chips are cut off by a method wherein a magnetic material layer is provided in the side of a semiconductor wafer with a primary surface, where electronic elements or patterns are physically and chemically formed. SOLUTION: A magnetic material layer 4, composed of magnetic powder and binder which binds magnetic powder together, is previously applied on the side of a semiconductor wafer laminate. Lastly, when a magnet is made to approach separated semiconductor chip laminates 8, the semiconductor chip laminate 8 with the magnetic material layer 4 formed on its side is attracted by the magnet. The semiconductor chip laminate 8 having no magnetic material layer 4 formed on its side is not attracted to the magnet. As a result, the semiconductor chip laminates 8 which are possessed of arc-shaped sides, defective in shape, and not suitable for use in the manufacture of products can be easily and surely sorted out.
Patent JP-H09230309-A (JP)
Title: Liquid crystal image display device
Inventor: IGARASHI KAZUAKI
IPC: G09G3/36
Filed: 1996-02-27
Abstract: PROBLEM TO BE SOLVED: To reduce the cross talk depending on a display screen when the potential change of the common electrode arises by the method that the driving voltage of the signal line is linked with the change to correct it. SOLUTION: The device is composed from a liquid crystal panel 101 in use of a switching element, a common electrode 102, a potential supplying circuit 103, a filter circuit 104 which adjusts the potential change of the common electrode 102 to output the potential and a D/A converter type signal line driver IC 105 which has a potential input terminal 106 and, based on the input potential of the terminal 106, converts the inputted digital data to analog signals. With such constitution, the output voltage of the signal line driver IC 105 is corrected in compliance with the potential change of the common electrode 102 by optimally adjusting the potential change of the common electrode 102 by the filter circuit 104 to input the potential to the potential input terminal 106 of the signal line driver IC 105.  By this, the cross talk caused by the potential change of the common electrode which depends on the display screen can be reduced.
Patent JP-S56135163-A (JP)
Title: Ammeter
Inventor: TAKADA MASANOBU
IPC: G01R19/25
Filed: 1980-03-27
Abstract: PURPOSE:To arrange so that high-precision measurement of an electric current may be carried out by detecting a broad dynamic range of consumption current, logarithmically converting, performing an arithmetic operation in a logarithmic region, making a digital accumulation and a reciprocal logarithmic conversion, and indicating consumption current. CONSTITUTION:An object to be measured 2 receives energy from a power supply 1, consuming an electric current complying to the internal condition. This consumption current is converted to a voltage by means of an ammeter 3 and then is logarithmically converted by a long amplifier. The logarithmically converted consumption current is accumulated for a fixed period of time by an accumulation part 5 and is converted to an analog value, being output to an antilog amplifier 6. An output from this accumulation part is converted by means of the antilog amplifier 6 in terms of logarithm to true numeric or vice versa. The conversion results are displayed by a display unit 7. Under this constitution, the dynamic range of electric current spreads for instance, beyond the boundary of 60dB, thus carrying out high- precision current measurement.
Patent JP-H09227027-A (JP)
Title: Combustible bobbin
Inventor: OBA AKIRA
IPC: B65H75/14
Filed: 1996-02-27
Abstract: PROBLEM TO BE SOLVED: To attain a bobbin which has high productivity and excellent rigidity and can be burning-disposed without any pollution by integrally-forming a cylindrical shell part for winding wires such as electric wires around a bobbin for winging and rewinding wires using mixture of wastepaper pulp and polypropylene, with receiving collars at both the ends. SOLUTION: Receiving collars 2, 3 are fitted integrally on right and left sides of a cylindrical shell part 1 which is formed by mixing wastepaper pulp and polypropylene. An inserting capillary 5 which is formed with a fitting through-hole 4 at the center of the cylindrical shell part 1 is formed integrally with the cylindrical shell part 1 through a connecting board 6. In the receiving collars 2, 3, their inner surfaces are made wire contacting surfaces 2a, 3a, an annular part 8 which has the concentric circle to the cylindrical shell part 1 is fitted in the vicinity of the cylindrical shell part 1 at their external surfaces 2b, 3b. A plurality of uniform interval reinforcing pieces 9 are fitted, which reach a circumferences 2c, 3c of the receiving collars 2, 3 from the cylindrical shell part 1 and cross the annular part 8.  Furthermore, a closing board 10 which covers one surface of the cylindrical shell part 1 except the through-hole 4 is fitted integrally at a one receiving collar 3.
Patent JP-H04257354-A (JP)
Title: Knitted fabric
Inventor: MAEKAWA MINORU
IPC: E04G21/24
Filed: 1991-02-08
Abstract: PURPOSE:To obtain a raschel fabric free from rolling-in and rolling collapse of the selvage part and having excellent shape stability in processing to a lattice-like fiber sheet used for engineering works and building. CONSTITUTION:In a knitted fabric consisting of a main knitted fabric and a selvedge part provided on the both ends, the selvedge part-knitting structure (I) made of a raschel fabric consists of outside structure (A) in which each warp between warps (L1) is restricted with an entwining yarn (L2) from the outside, intermediate structure (B) in which each warp between warps is not restricted and inside structure (C) in which each warp between warps (L1) of the part boundary to the main knitted fabric structure (D) is restricted with the entwining yarn (L2).
Patent JP-H08236974-A (JP)
Title: Cooling structure of electronic device
Inventor: ISOHATA KATSUYA
IPC: H05K7/20
Filed: 1995-02-28
Abstract: PURPOSE: To provide a cooling structure wherein air conditioning air does not lower cooling property of an electronic device when an electronic device is installed inside a building wherein air conditioning air flows. CONSTITUTION: In an electronic device of a structure wherein outlet hot air which the cooled an electronic part contained inside a frame is exhausted from an exhaust hole provided to a ceiling board 7 of a frame 2, a control board 10 whose windward side of air conditioning air P tilts downward and the lee side is opened is attached to an upper edge part of the frame 2 which is on the windward side of air conditioning air P blown from an air conditioner to cover above the ceiling board 7.
Patent JP-S57152930-A (JP)
Title: Clamping apparatus
Inventor: KUMAZAKI HIROSHI
IPC: B29C45/67
Filed: 1981-03-19
Abstract: PURPOSE:To obtain a clamping apparatus capable of reducing cost for manufacturing and period of molding cycles, by providing a special mold clamping adjuster, a tie bar and a clamping cylinder, and carrying out opening and closing movable molds vertically. CONSTITUTION:By forward and backward rotational driving of a geared motor 12, a spline shaft 10 is rotated to rotate a screw shaft 8 for vertical movement so that the length of a boss 6 extending from an end surface 13 on the opposite moving plate side is adjusted. A clamping cylinder 16 will be positioned between an end surface C on the opposite side of the screw shaft 8 only when clamping is effected so that the distance L therebetween is widened, while when clamping is not carried out, it is slided by the distance l, and is diengaged as shown by a phantom line. The distance L can be adjusted by the screw shaft 8 to be constant at all times regardless of the thickness of the molds 2, 4, and therefore the piston stroke of the clamping cylinder 16 may be very little.
Patent JP-H03149282-A (JP)
Title: Nonlinear optical material composition and its manufacture
Inventor: WAKITA KATSUYA
IPC: G02F1/355
Filed: 1990-02-21
Abstract: PURPOSE:To obtain a nonlinear optical material composition having a great nonlinear optical effect by combining a specified pi-electron conjugated organic compound with other organic compound. CONSTITUTION:A nonlinear optical material composition consisting of at least two organic compounds (except polymer), at least one of which is a pi-electron conjugated organic compound having an electron-donating substituent and an electron-attracting substituent. As the pi-electron conjugated organic compound, a nitroaniline compound derivative is preferably used because of ease of synthesis and relatively short wavelength of the absorption end. As the other organic compound to be combined therewith, for example, an organic compound of formula I (wherein phi1 and phi2 are each an aromatic or heterocyclic aromatic ring unsubstituted or having an arbitrary substituent; R1 and R3 are each H or an arbitrary substituent; R2 is a straight-chain or branched hydrocarbon group) or formula II (wherein phi3 is H or an aromatic or heterocyclic aromatic ring having an arbitrary substituent; R4, R5, R7, and R8 are each H or an arbitrary substituent; R6 is a straight-chain or branched hydrocarbon group) is preferably used.
Patent JP-S60184419-A (JP)
Title: Formation of square-shaped metallic blank pipe having embossed work
Inventor: ONO EIJI
IPC: B21C37/15
Filed: 1984-03-02
Abstract: PURPOSE:To form a titled square-shaped metallic blank pipe which is excellent in a collapse load strength by pinching the vicinity of the embossed end part by upper and lower rolls in a rough forming roll and setting it as a bending point, when obtaining a square-shaped blank pipe from a steel band on which an embossed pattern has been worked. CONSTITUTION:When an embossed pattern 30 is worked at an interval on a steel band, and a square-shaped blank pipe having a weld joint on one side is obtained by roll forming, the steel band is pressed by an upper roll 15-2 and a lower roll 15-1 in a rough forming roll 15. A caliber R is provided on the upper roll 15-2, and a part between the roll center and a width W2 is not subjected to the roll forming. A part of the steel band corresponding to a width W1 is pinched by the upper and the lower rolls 15-1, 15-2, and formed roughly by setting a point P as a bending point. This point P is made to coincide with the vicinity of the end part of the embossed pattern 30. In this way, a collapse load strength of the steel band can be increased by about 40%.
Patent JP-H11240333-A (JP)
Title: Sunroof device
Inventor: KOBORI AKIRO
IPC: B60J7/00
Filed: 1998-02-23
Abstract: PROBLEM TO BE SOLVED: To promote the miniaturization of any parts to be built in a fixed roof. SOLUTION: A drive unit consisting of a push cable 6 and a motor 7 for opening or closing and driving a sunroof panel is set up in an empty space lying between both symmetrical side frames 4 and 4 produced by halving a sunshade panel 11 by a sunroof device equipped with an outer sliding sunroof panel 3.  At this time, in order to situate this drive unit in space between a virtual plane with which a rear end edge 11d of the sunshade panel at a storage position comes into contact, and another virtual plane with which these symmetrical side frames themselves or the rear end of a member are substatially integrated with these symmetrical side frames comes to contact, an interval between a connecting end 6c to the side frame of an outer pipe 6b of the push-pull cable and another connecting end 6d to the motor is flexed into a nearly S- shaped form in plan view, while the connecting end to the side frame of the outer pipe is set up in the more front than the connecting end to the motor.
Patent JP-S51116596-A (JP)
Title: Method and apparatus for constructing vessels
Inventor: YOSHIDA TOSHIO
IPC: B63B9/06
Filed: 1975-04-01
Abstract: PURPOSE: To improve the working efficiency for vessel construction by accomplishing the construction in the space of the building berth, which is flat and suitable for work, and by using the dock only for launching. 
     COPYRIGHT: (C)1976,JPO&Japio
Patent JP-H10217594-A (JP)
Title: Imprinting implement
Inventor: TAKAGI HIROSHI
IPC: B41K5/00
Filed: 1997-02-07
Abstract: PROBLEM TO BE SOLVED: To provide an imprinting implement for preventing ink of stamped seal from being wiped off and from being falsified. SOLUTION: This imprinting implement comprises an upside frame 1 and a downside frame 2 openable at front ends rotatably coupled at rear ends to one another, a printing element 3 having a printing surface 4 formed downward and installed at a front end lower surface of the frame 1. In this case, the frames 1 and 2 are closed at front ends to bring the surface 4 into contact with a material to be imprinted and arranged between the both. Thus, when the surface 4 is pressed to the material, a cutout for soaking with ink oozed out from the surface 4 is provided, and further a cutter 9 formed at the material is provided at a periphery of the surface 4.
Patent JP-H02219606-A (JP)
Title: Production of semiconductor wafer
Inventor: NAKANISHI TOSHIRO
IPC: B28D5/00
Filed: 1989-02-22
Abstract: PURPOSE:To produce a silicon wafer which is low in crystal defect and controlled in concn. of oxygen and has high quality and large diameter while utilizing a comparatively small-scale device by mutually sticking a plurality of semiconductor ingots with smooth planes formed to the lengthwise direction in the planes and forming the combined body of the ingot and slicing this combined body to the direction vertical to the plane. CONSTITUTION:A cylindrical semiconductor ingot 11 is formed into a regular hexagonal columnar semiconductor ingot 11' by removing the dotted line parts of the side surface of the ingot 11. Then a clean surface is formed by polishing the ingot 11' so that the side surface of the lengthwise direction of the ingot 11' is made even. The combined body 12 of ingot wherein a plurality of ingots 11' have been combined is obtained by mutually sticking the side surfaces of a plurality of ingots 11' (e.g. seven pieces) having smooth planes in the lengthwise direction without forming a gap and heat-treating them. A wafer is obtained by slicing this combined body 12 of ingot in the transverse direction.
Patent JP-H09234578-A (JP)
Title: Laser beam machining head
Inventor: NUMATA SHINOBU
IPC: B23K26/064
Filed: 1996-02-28
Abstract: PROBLEM TO BE SOLVED: To easily position a laser beam to a small diameter emitting port at the tip of a nozzle in the laser beam machining head to condense a laser beam by a lens and to irradiate a work. SOLUTION: The peripheral face 12 for supporting of a nozzle 17 is inclined at 45-80 deg. for the direction of an adjusting screw 15. By this arrangement, when turning the adjusting screw 15, part of a pushing force of adjusting screw 15 produces a component to push down the nozzle 17 to a torch 2, the nozzle 17 is precisely position-adjusted without floating. Further, when the tip of adjusting screw 15 is made to a partial sphere 16a, it turned to point contact, adjustment is stably executed and the peripheral face 12 for supporting is not damaged.
Patent JP-H09224766-A (JP)
Title: Knob structure
Inventor: NAKAMURA AKIHIRO
IPC: A47B95/02
Filed: 1996-02-28
Abstract: PROBLEM TO BE SOLVED: To simplify a procedure to install a pedestal and knob and prevent them from being rotated by providing pin projecting from the back side of a knob to be installed on the front side of a door by a screw and by setting the pin into the door. SOLUTION: A screw 4 is driven from the back side through a lower hole provided in a door 1 and also through a hole provided in a pedestal 2 on the front face of the door 1, to go into a threaded hole 9 provided in a knob 3 from the back side, to fix the knob. A pin 5 projecting from the knob 3 is driven into a connecting hole 6, provided above a lower hole 7 and piercing the pedestal 2, to go into the door 1, where the connecting hole 6 has a circular cross-section and a smaller diameter than the lower hole 7. Therefore, the knob 3 is set at a given position on the door 1, when the pin 5 is driven into the connecting hole 6. The pin 5 projecting from the knob 3 is used to position the knob 3 and the pedestal 2 simultaneously, saving a pin on the pedestal 2 to position it, and thereby simplifying structure of the pedestal 2.
Patent JP-H02219623-A (JP)
Title: Back pressure controller
Inventor: NEKO TETSUAKI
IPC: B29C45/50
Filed: 1989-02-22
Abstract: PURPOSE:To enable metering to be completed surely by an arrangement in which a metering operation at a low back pressure is conducted through automatic switching to a torque limit value for a back pressure when it is judged by a discriminating means that the current metering is a metering by manual operation. CONSTITUTION:A manual control panel 5 connected to an input circuit 32 is provided with instruction buttons such as a power switch, an automatic operation button, a manual operation button and a metering button for use in manual operation. When it is detected that a power supply is turned ON, a CPU 22 for PMC judges whether the manual operation button on the control panel 5 is pressed ON, and whether other buttons are pressed ON. It is then judged whether the metering button is pressed, and when the metering button is turned ON, an index is set to '1', a torque limit value for a back pressure at the time of the manual operation which value is set in a shared RAM 29 is read, and is outputted through an output circuit 31 to a servo circuit 27 for a servomotor M1 for injection, thereby limiting an output torque. Thus, the metering operation is conducted with the back pressure set at a small value, so that the metering operation can be completed surely.
Patent JP-S53125787-A (JP)
Title: A plural number of insulation gate field effect transistor for read only memory and its usage
Inventor: KUROKI YUKINORI
IPC: H01L27/04
Filed: 1977-04-08
Abstract: PURPOSE: To make the degree of integration super-high density, by reducing areas required for element separation and the source and drain, through formation of the high concentration impurity layer of the same type as the source and drain on the semiconductor surface under the gate electrode depending on the content of the information desired to be stored and through provision of a plural number of gates. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-H10241287-A (JP)
Title: Digital information recording/reproducing device
Inventor: KUNIHIRA TADASHI
IPC: G11B20/10
Filed: 1997-02-25
Abstract: PROBLEM TO BE SOLVED: To reproduce recorded digital information for a specified period without reducing security by using a digital information ciphering transmission system constructed for deciphering second ciphering information reproduced by a recording/reproducing means by using a second ciphering key held in a first or second storage means. SOLUTION: The storage means 7 of a digital information recording/ reproducing device receives and holds a second ciphering key outputted from a first cryptoanalysis section 4 and then outputs this to a second cryptoanalysis section 5. The held second ciphering key is also outputted to a second storage means 10 and held there for a fixed period. When a recording/reproducing means 9 reproduces the recorded first or second ciphering information, the second cryptoanalysis section 5 for decoding the second ciphering information decodes the reproduced second ciphering information by using the second ciphering key held in the first or second storage means 7 or 10.
Patent JP-H09211175-A (JP)
Title: Internal pump system
Inventor: SUZUKI KATSUYUKI
IPC: G21C7/26
Filed: 1996-02-02
Abstract: PROBLEM TO BE SOLVED: To secure the operating condition of a highly reliable and stable internal pump system by adopting an MG set with fluid joint as a variable frequency power source and judging the condition of a pump quickly when a specific internal pump restarts. SOLUTION: In an internal pump system in a boiling water reactor power plant where a recirculation MG set with a fluid joint 4 is used as a variable frequency power source for internal pumps 1a to 1e, a pump motor where the time lag in synchronous operation occurs is identified by detecting the revolving speed of each of a recirculation MG set alternator 6 and internal pump motors 2a to 2e or a current outputted from the alternator 6 and a current inputted into the pump motors 2a to 2e and comparing the condition of synchronous operation in the alternator 6 with that of the pump motors 2a to 2e. If the time lag in the synchronous operation exceeds a prescribed value set beforehand, the internal pumps 2a to 2e are tripped.
Patent JP-H06257805-A (JP)
Title: Air conditioner equipped with moistening function
Inventor: KUBO TSUGIO
IPC: F24F6/00
Filed: 1993-03-02
Abstract: PURPOSE:To ensure the high performance, low noise, and miniaturization of an apparatus by providing non-water supply moistening means utilizing water in fresh air as moistening water in a heat pump type air conditioner having functions of cooling, heating, and dehumidification. CONSTITUTION:There is provided a non-water supply moistening unit 1 in an air conditioner indoor machine 101 which unit includes an enclosed container 4 into which there is introduced indoor air sucked by a fan 7 corresponding to a front suction inlet 8. The non-water supply moistening unit 1 introduces fresh air into the enclosed container 4 and adsorbs and stores water in the fresh air in a honeycomb-shaped humidity absorption/discharge molded member 2 when a pump 6 is driven using two-way solenoid valves 5a, 5b in a flow passage configuration of fresh air introduction and discharge to the outside of a room. The pump 6 is stopped when the operation reaches a water saturation state of a predetermined level or higher, and the solenoid valves 5a, 5b are changed over to a flow passage configuration of indoor air introduction and discharge into a room to discharge water freed from the member 2 from a blowoff, outlet 9 into the room as moistening air by energizing the heater 3.