baber/WOPTO huggingface dataset:
Patent JP-H03185633-A (JP)
Title: Optical recording and reproducing device
Inventor: AIKO HIDEKI
IPC: G11B7/12
Filed: 1989-12-13
Abstract: PURPOSE:To improve the access performance by transmitting reflected light from a 2nd reflecting mirror, reflecting reflected light from a 1st reflecting mirror and detecting an information signal, a focus error signal and a tracking error signal from an information recording medium based on the above final reflected light. CONSTITUTION:Laser light from a semiconductor laser 15 is converted into a parallel light beam by a collimator lens 16, and is given to the reflecting mirror 21 of a movable part 14 via the reflecting mirror 17 and a half mirror 18. The movable part 14 is held freely movably along the radial direction and regulated in its moving range by a movable part driving means 24. And, an objective lens 22 is driven by an objective lens driving means 23 with the focus error signal and the tracking error signal, and a recording surface of an optical disk 11 is irradiated with the laser beam. This reflecting light is reflected via the objective lens 22 and the reflecting mirror 21 to the side of the half mirror 18, and is detected by a signal detecting means 20. By this method, the mass of the movable part can drastically be reduced, and the access performance can be improved.
Patent JP-2001139819-A (JP)
Title: Emulsion, its production method, and method of producing oil composition
Inventor: MORITA YOSHIJI
IPC: C08L83/10
Filed: 1999-11-16
Abstract: PROBLEM TO BE SOLVED: To provide an emulsion of a silicone oil or an organic oil containing crosslinked particles in droplets of the silicone oil or the organic oil which are dispersed in water. SOLUTION: The emulsion contains crosslinked particles obtained by crosslinking a liquid crosslinkable composition comprising (A) an organic compound having at least two aliphatic unsaturated bonds in the molecule, (B) a silicon-containing organic compound having at least two silicon atom-bonded hydrogen atoms in the molecule, (C) a catalyst for hydrosilylation reaction and, if necessary, (D) an organopolysiloxane having at least one alkenyl group in the molecule by hydrosilylation reaction and having an average particle diameter of 0.05-100 μm in droplets of a silicone oil or an organic oil having a particle diameter of 0.1-500 μm which are dispersed in water, provided that the particle diameter of these crosslinked particles are smaller than that of the droplets of the silicone oil or the organic oil.
Patent JP-H11274072-A (JP)
Title: Method and apparatus for leveling of wafer aligner
Inventor: KIN SEISEKI
IPC: G03F7/20
Filed: 1998-11-16
Abstract: PROBLEM TO BE SOLVED: To minimize a movement region of moving points formed in the periphery of a stage by executing a leveling operation with the center of a specified region of a wafer to be exposed as a reference. SOLUTION: When a wafer 30 is mounted above on a stage 32, light emitted by a light-emitting diode 42 is transformed into parallel light by means of a collimator lens 44 and then is incident on an exposure region of the wafer 30. Light reflected on the region of the wafer converges on a four-split optical sensor 48 through the collimator lens 46. The position of a focus 51 formed on the four-split optical sensor 48 is detected, and when the exposure face of the wafer does not cross at right angles with an optical axis of the optical system and the focus 51 is formed on the side of either one of sensing faces 52a-52d, moving points 34, 36, 38, 40 of the stage 32 are moved upward or downward, so that the gradient of the exposure face of the wafer crosses at right angles to the optical axis of the optical system and is leveled.
Patent JP-H06164500-A (JP)
Title: Optical space transmitter
Inventor: HARATAKE MASAHIDE
IPC: H04B10/11
Filed: 1992-11-09
Abstract: PURPOSE:To surely receive an information signal even when the light amount of a receiving light beam rapidly and largely changes by generating the delay output signal of a light receiving element output signal and performing signal processing by amplifying the delay output signal with a signal level correction circuit which varies the amplification rate based on the signal level detection result of the output signal. CONSTITUTION:A peak detection circuit 14 detects the level of an output signal S1 of an avalanche photo diode 2 by performing envelope-detection of the distribution output of a directional coupler 12 and outputs the result to an AGC circuit 18. A delay circuit 16 consists of a delay circuit formed by a surface acoustic wave delay element. The remaining distribution output or output signal S1 of the directional coupler 12 is delayed for the prescribed period of time and outputted to the AGC circuit 18. At the AGC circuit 18, the output signal of the delay circuit 16 is amplified by switching an amplification rate according to the signal level detection result. Thus, the signal level of the output signal S2 is corrected to make the signal level of the output signal S2 the prescribed reference level.
Patent JP-H10170152-A (JP)
Title: Drying device
Inventor: TAKAHASHI SUSUMU
IPC: F26B13/10
Filed: 1996-12-05
Abstract: PROBLEM TO BE SOLVED: To provide a drying device in which a fan for introducing fresh air can be dispensed with. SOLUTION: In a drying device 21 (41) provided with a nozzle arranged in a drying chamber 22, an air discharge passage 24 extended from the drying chamber 22 to the outside, a circulation passage 25 to be communicated with the drying chamber 22, an air blowing passage 26 to be communicated with the nozzle, a fan 27 arranged between the circulation passage 25 and the air blowing passage 26, and a fresh air introducing passage 29 provided with a filter 10 and connected to the circulation passage 25, a damper 33 for regulating the circulation air volume is arranged on the upstream side of a connection part A (B) to the fresh air introducing passage 29 having no forced draft fan in the circulation passage 25.
Patent JP-H08175013-A (JP)
Title: Reversible thermal recording material
Inventor: TATEZAWA SHINGO
IPC: B41M5/327
Filed: 1994-12-27
Abstract: PURPOSE: To provide a practical reversible thermal recording material utilizing the reaction of a color former such as a fluorane compd. and a coupler generating a reversible hue change by heating, imparting good image contrast, enabling the formation and erasure of an image, not leaving an unerased part at the time of color erasure and excellent in light fastness. CONSTITUTION: In a reversible thermal recording material wherein a reversible thermal recording layer containing a usually colorless or light-colored electron donating dye precursor and a reversible coupler allowing the dye precursor to develop a color by heating and erasing the developed color by reheating is provided on at least the single surface of a support, as the dye precursor, 3,3-bis-(4-diethylamino-2-ethoxyphenyl)-4-azaphthalide is added.
Patent JP-H09142840-A (JP)
Title: Ultrafine particle of cerium oxide and its production
Inventor: HANAWA KENZO
IPC: C01F17/235
Filed: 1995-11-20
Abstract: PROBLEM TO BE SOLVED: To obtain ultrafine particles of cerium oxide having an equalized particle size and an equalized particle shape by constituting the particles with a single crystal of cerium oxide of a specific particle size. SOLUTION: The subject fine particles are constituted with a single crystal of cerium oxide with a particle size of 10-80nm, preferably of 20-60nm. The ultrafine particles are produced by mixing an aqueous solution of cerous nitrate with a base such as aqueous ammonia at such a ratio that the pH is adjusted to 5-10, preferably 7-9 with stirring, rapidly heating the solution up to 70-100 deg.C, preferably within 10 minutes, then keeping the temperature, preferably for 0.2-20 hours for aging. The ultrafine particles are useful as an abrasive for flattening the silicon oxide of the interlaminar insulation layer in the field of semiconductor production.
Patent JP-2000154448-A (JP)
Title: Needle bed of knitting machine
Inventor: MATSUDA YASUHIKO
IPC: D04B15/10
Filed: 1998-11-16
Abstract: PROBLEM TO BE SOLVED: To provide a needle bed of a knitting machine capable of being machined with a high accuracy, excellent in high hardness and high abrasion resistance, durable as a whole and enabling partial exchange of elements and advantageous even from economic view point. SOLUTION: This needle bed 1 is made of a metal and formed by arranging many needle sliding grooves 22 for slidably supporting a knitting needle on the surface in rows. In the needle bed 1, when plural needle sliding grooves 22 are formed on the surface and connected in longitudinal direction, a prescribed needle bed size is obtained and two or more short needle plates 2 in which the rear surface along the edge on the side protruding and retreating a stitch forming part of a knitting needle forms a taper surface 21 gradually reducing the wall thickness are successively detachably fixed onto the upper surface of a reinforcing supporting member 3 made of a metal having a length nearly equal to needle bed length.
Patent JP-H03185389-A (JP)
Title: Method for detecting position of embedded joint
Inventor: NISHINO MASUSHI
IPC: G01V3/08
Filed: 1989-12-14
Abstract: PURPOSE:To accurately detect the position of an embedded joint on the basis of the intensity change of a large magnetic field equal to or more than a set value by measuring the intensity change of a magnetic field in the longitudinal direction of an embedded metal pipe by the detector from the ground. CONSTITUTION:An AC power supply 10 is connected to an electrode rod 8 and earthed to generate a magnetic field from an embedded metal pipe 1 and a detector 2 is moved in the longitudinal direction of the embedded metal pipe 1 on the ground and the intensity change of the magnetic field is quantitatively measured in the longitudinal direction of the embedded metal pipe 1 by the detector 2. Then, it is judged that the joint of the embedded metal pipe 1 is present at a place where the intensity of the magnetic field in the longitudinal direction of the embedded metal pipe 1 is a set value or more on the basis of the measured result of the intensity density of the magnetic field and a measuring position. By this constitution, the position of the embedded joint is accurately detected and the digging-out of the embedded joint can be executed inexpensively and rapidly.
Patent JP-H04202811-A (JP)
Title: Photochromic conjugate fiber
Inventor: YAMADA KOICHI
IPC: D01F8/12
Filed: 1990-11-29
Abstract: PURPOSE:To provide the subject fiber composed of a low melting thermoplastic resin containing a specific photochromic material as a core component and a high melting thermoplastic resin as a sheath component, the fiber having a function to reversibly change the color thereof with or without light irradiation. CONSTITUTION:The objective fiber composed of (A) a thermoplastic resin containing 0.1-30wt.% of a photochromic material and having a melting point of <=230 deg.C as a core component and (B) a thermoplastic resin having a melting point of <=230 deg.C as a sheath component in an A/B weight ratio of 10/90 to 90/10, the photochromic material preferably comprising an organic photochromic compound and a hindered amine compound and being micro-capsuled with a film-forming substance.
Patent JP-H04197405-A (JP)
Title: Filtering method, filtering apparatus and aquarium fish tank
Inventor: ICHIKAWA MINORU
IPC: C02F9/00
Filed: 1990-11-29
Abstract: PURPOSE:To perform the efficient water purification by circulating an outgoing water to a pump through a first filtering tank part wherein the physical filtering is conducted and a second filtering tank part wherein the biological filtering is conducted and returning a part of outgoing water after it passes by a third filtering tank part containing active carbon. CONSTITUTION:A water fed by a pump 3 into a water tank is caused to circulate in a manner that the water is returned to the pump 3 after it passes by a first filtering tank part 17 wherein the physical filtering is conducted and/or a second filtering tank part 38 wherein the biological filtering is conducted. Furthermore, a part of water fed by the pump 3 is caused to return to the pump 3 through a third filtering tank part 18 containing an active carbon. Accordingly, the water can efficiently be filtered and purified without providing a high load to any of the filtering tank parts and the pump in use.
Patent JP-H07182206-A (JP)
Title: Abnormality recovering device for microcomputer
Inventor: KOYANAGI HIROYOSHI
IPC: G06F11/30
Filed: 1993-12-24
Abstract: PURPOSE:To recover the abnormality of an one-chip microcomputer for reading out a synchronizing signal from an electronic type watthour meter and a serial signal with prescribed bit length as a count value transmitted synchronously with the synchronizing signal and outputting a BCD code counting value without requiring a communication procedure with the wattehour meter side. CONSTITUTION:A counter 11 counts a synchronizing signal (a), and when the microcomputer 13 is abnormal, the counting of the counter 11 is up at the time of counting up a prescribed number after ending the transmission of a serial signal (b), a count-up signal (d) is outputted, and a reset signal (e) is applied to the microcomputer 13 through an OR gate 14 to return the microcomputer 13 to normal operation. When the microcomputer 13 is normal, the microcomputer 13 applies a clear signal (c) to the counter 11 to clear the count value after inputting the serial signal (b), so that the count-up signal (d) is not outputted.
Patent JP-H11158408-A (JP)
Title: Evaporable colorant and method or recording therewith
Inventor: UCHIYAMA ISAO
IPC: B41M5/388
Filed: 1997-11-27
Abstract: PROBLEM TO BE SOLVED: To obtain an evaporable colorant having excellent heat stability and being desirable for use in a colorant evaporation type thermal recording system by purifying an evaporable colorant to a specified or lower zinc content. SOLUTION: This colorant has a zinc content of 500 ppb or below. The colorant is exemplified by a methine colorant, an azomethine colorant, an azo colorant, a quinophthalone colorant, a coumarin colorant, an anthraquinone colorant or a fused polycyclic colorant. The colorant having a zinc content of 500 ppb or below is produced by subjecting a colorant synthesized by a usual method to an advanced purification process such as recrystallization utilizing a solvent, a reprecipitation utilizing a solvent, column chromatography or evaporation purification and suitably selecting purification conditions, for example, temperatures, pressures, atmospheres, solvent types and compositions, column packing types, and so on. Among the purification process, column chromatography, evaporation purification, etc., are particularly effective.
Patent JP-H06175546-A (JP)
Title: Image forming device
Inventor: SUGA TSUTOMU
IPC: F16H1/06
Filed: 1992-12-04
Abstract: PURPOSE:To provide a driving device for uniformly driving a photosensitive drum in an image forming device. CONSTITUTION:In the image forming device provided with a 1st spurgear 111 which is installed on the side face of the photosensitive drum 11 in order to drive the photosensitive drum 11, a 2nd spurgear G4 which is engaged with the 1st spurgear 111 in order to drive the spurgear 111 and a driving means for driving the 2nd spurgear G4, the biting ratio of the 1st spurgear 111 to the 2nd spurgear G4 is set >=2 by shifting either of, or both of the 1st spurgear 111 and the 2nd spurgear G4.
Patent JP-2001025460-A (JP)
Title: Method for displaying skin color information
Inventor: TSUGITA TETSUYA
IPC: A61B5/107
Filed: 1999-11-16
Abstract: PROBLEM TO BE SOLVED: To determine the degree of blackening of skin due to sunburn or the quality of a color balance in a made-up skin and bare skin by measuring the colors of a plurality of sites of an examinee and inputting the colorimetric values into an arithmetic unit and displaying a color system on a display. SOLUTION: Colors of a plurality of different sites of an examinee are measured with a colorimeter and input to an arithmetic unit. For example, exposed sites usually exposed to external light, including the cheeks, forehead and neck or the like of an examinee, and nonexposed parts usually not exposed to external light, including the part below the jaw, insides of brachia and insides of antebrachia are measured. Measured colorimetric values are displayed on a two-dimensional plane of the H axis and the V axis in the Munsell color system for example, whereby differences in colorimetric values between the exposed portions and the nonexposed portions are charted clearly, a determination is easily made about how the skin of the exposed portions is damaged by ultraviolet rays as compared with the nonexposed portions and blackened and exact advice is offered.
Patent JP-2001143514-A (JP)
Title: Illumination panel and display device using the same
Inventor: MIZUTANI YASUSHI
IPC: G02F1/1335
Filed: 1999-11-16
Abstract: PROBLEM TO BE SOLVED: To provide a display device performing two-way display, in which both displays using external light and light of an illumination panel are sufficiently bright. SOLUTION: An illumination panel 22 comprises a light guide plate 23 having one end surface serving as an incident end surface 24 and a plurality of directional light exiting surfaces 25 formed on a front surface thereof, an optical sheet 29 disposed on a side of a front surface of the light guide plate 23 and having a plurality of first prism portions 30 protrudingly installed on a rear surface thereof for refracting the light emitted from the directional light emitting surfaces of the light guide plate 23 in a direction of the front surface,  a plurality of second prism portions 31 protrudingly installed on a front surface thereof for diffusing and emitting forward the light refracted in the direction of the front surface by the first prism portions 30 and a reflecting film 33 formed in a plurality of flat surface portions between the prism portions 31 of the front surface for reflecting the incident light from the front surface forward, and a light source portion 34 so arranged on a side of the light guide plate 23 as to be opposed to the incident end surface 24 of the light guide plate 23. The illumination [panel 22 is disposed on a rear surface of the liquid crystal display element 1.
Patent JP-H11160601-A (JP)
Title: Camera
Inventor: FUNABASHI AKIRA
IPC: G02B7/04
Filed: 1997-11-27
Abstract: PROBLEM TO BE SOLVED: To obtain a camera provided with a finder having a field range corresponding to a photographing range or visibility corresponding to a photographing distance with simple consistution at low cost by adjusting the field range to the photographing range or the visibility for the photographing distance interlocked with the focusing operation of a zoom lens barrel. SOLUTION: As for a finder cam curve (a) in the case of adjusting the field lens to the photographing range and/or the visibility for the photographing distance interlocked with the focusing operation of the zoom lens barrel; a broken line shows an original zoom curve and a solid line shows the finder cam curve. In a lens barrel finer system, a finder cam is driven when focusing, so that a finder image is shown at a more accurate angle of view and/or the visibility by setting the finder cam to the angle to of view and/or the visibility corresponding to the photographing distance.
Patent JP-2000128065-A (JP)
Title: Hull
Inventor: FUJITA HITOSHI
IPC: B63B1/40
Filed: 1998-10-29
Abstract: PROBLEM TO BE SOLVED: To provide a hull able to reduce resistance, particularly when running. SOLUTION: This hull is provided with the following: an air chamber 3 with the bottom surface open provided in a bow 1; a compressed air supply unit 4 that supplies air of a predetermined pressure to this air chamber 3; a through-waterway 6 of at least one opening which communicates the inside and outside of the air chamber 3 below the water line; and a valve 7 which closes the through-waterway 6 from within the air chamber 6 when the ship is stopped and opens the through-waterway 6 when the ship is running by differential pressure which acts on the inside and outside of the through-waterway 6. Part of the pressure acting on the hull is released from the through-waterway 6, reducing friction resistance while reducing waves made by the bow, thereby reducing generated wave friction.
Patent JP-H03187093-A (JP)
Title: Compact information processor
Inventor: OKUNO TAKASHI
IPC: G11C11/406
Filed: 1989-12-18
Abstract: PURPOSE:To easily extend a memory capacity and to improve the using efficiency by performing a refresh operation of a built-in memory and a memory card to be packaged in accordance with the presence of the extension memory card. CONSTITUTION:After a capacity of a DRAM 13 is checked, whether a DRAM card 15 is inserted into a slot 19 or not is detected. When the memory capacity is extended with the card 15 inserted into the slot 19, a time to suit a specification of the slow speed card 15 is settled in a register of a memory controller 17. Consequently, the DRAM 13 and the card 15 are controlled by a signal to be given from the controller 17. On the other hand, when the card 15 is not inserted into the slot 19, a refresh time is settled shorter than the refresh time of the card 15 in the register of the controller 17 to suit a specification of the high speed DRAM 13. By this method, the DRAM 13 is operated for its refresh operation in a short refresh time suited for its specification, and the power consumption is reduced.
Patent JP-H04198810-A (JP)
Title: Omnidirectional tilt angle sensor
Inventor: FUNADA YOSHIMARU
IPC: G01C9/06
Filed: 1990-11-29
Abstract: PURPOSE:To enable an omnidirectional tilt angle sensor to detect the tilt angle of the sensor even when the sensor is tilted in any direction by forming the inner surface of a case to a spherical shape and sticking a large number of electrodes to the inner surface while the inside of the case is kept empty or filled up with a nonconductive liquid, and then, installing the tilt angle sensor so that the electrodes can be maintained at horizontal positions. CONSTITUTION:Electrodes 2 and 3 are alternately stuck to the inner surface of a case 1 and a voltage from a power source 5 is applied across the electrodes 2 through wires 4. The electrodes 3 are connected to a signal processing circuit 7 which removes noise caused by the chattering of conductors and detects angles through wires 6. The case 1 can have any external shape, even a square shape, etc., and a spherical conductor 8 is put in the case 1. The central axis 10 of the case 1 is tilted against a vertical axis 9 by a certain angle. Since a large number of concentric ring-like electrodes 2 and 3 are stuck, the tilt angle of this sensor can be detected even when the sensor is tilted in any direction and, when slits are formed in the electrodes, the tilt direction of the sensor can be detected.
Patent JP-H08184832-A (JP)
Title: Rubbing device
Inventor: NISHIMURA KAZUYA
IPC: G02F1/1337
Filed: 1994-12-27
Abstract: PURPOSE: To rapidly neutralize charges generating on a rubbing roller and to prevent dielectric breakdown due to electrostatic charges by providing a roller to remove electrostatic charges which is in contact with a rubbing roller and synchronously rotates with the rubbing roller. CONSTITUTION: A roller 5 to remove electrostatic charges is housed above a rubbing roller 3 in a roller box 4. The rubbing roller 3 and the roller 5 to remove electrostatic charges synchronously rotate in the opposite direction to each other with a belt 6 stretched between the respective pulleys 3a and 5a. The two rollers 3, 5 are brought into contact with each other while rotating by attaching a supporting rod 7 to the axis of the roller 5, a supporting rod 8 to the axis of the rubbing roller 3, a spring 9 between two supporting rods to energize 9. The roller 5 to remove electrostatic charges is grounded through the supporting rod 7. The rubbing roller 3 is pressed to a liquid crystal panel 2 for orientation treatment. Negative charges generating in the roller 3 are released to the ground through the roller 5 and the rod 7.