baber/WOPTO huggingface dataset:
Patent JP-H0320251-A (JP)
Title: Production of n-alkylaminophenol
Inventor: KONDO MASAHIRO
IPC: C07C215/76
Filed: 1989-06-16
Abstract: PURPOSE:To enable efficient production of the subject compound purified by bringing the reaction mixture from a dihydroxylic phenol and an alkylamine into contact with halogenated hydrocarbon and water to effect extraction and distilling the oily phase separated. CONSTITUTION:A dihydroxylic phenol and an alkylamine are allowed to react, and the reaction mixture is brought into contact with halogenated hydrocarbon and water to effect extraction. Then the oily phase is distilled to give an N- alkylaminophenol. Moreover, the aqueous phase is distilled to collect the unreacting dihydroxylic phenol, which is reused. The process according to the invention leads to high conversion of the dihydroxylic phenol and high reaction efficiency with by-products reduced. The product is useful as an intermediate of dyes for heat-sensitive, pressure-sensitive recording paper, xanthene dyes and fluorescent dyes.
Patent JP-H114033-A (JP)
Title: Light-emitting element drive circuit
Inventor: CHIBA TAKAYA
IPC: H04B10/58
Filed: 1997-06-11
Abstract: PROBLEM TO BE SOLVED: To provide a light-emitting element drive circuit of little power consumption, capable of high-speed switching operation. SOLUTION: In this light-emitting element drive circuit for which an external light-emitting element, a switch circuit to be turned on/off corresponding to input data signals and a constant current source circuit for supplying a drive current to the light-emitting element when a switch is on are connected serially, a bias supply circuit connected to the current supply terminal of the constant current source circuit for keeping the constant current source circuit when the switch is off in the supply state of a current IB smaller than a light-emitting element drive current IP is provided. In such a constitution, high-speed switching operation is made possible by not completely turning off the constant current source circuit, when the switch is off.  Also, by keeping it in the supply state in which the current IB is smaller than that of the light-emitting element drive current IP, the power consumption is small.
Patent JP-H111051-A (JP)
Title: Printing device
Inventor: TAKAHASHI NARIYUKI
IPC: B41J29/48
Filed: 1997-06-11
Abstract: PROBLEM TO BE SOLVED: To detect correctly residual sheets of paper in the paper feeder container, and save man-hours of the user in a paper insertion period. SOLUTION: The printing apparatus is formed of a printing controller 2, a display 3 for notifying the user of information such as residual sheets of paper, and a printing mechanism 4 for implementing print on printing paper. The printing mechanism 4 has a residual sheet detection mechanism of print paper for detecting a state in which residual sheets of print paper In the paper feeding container becomes predetermined sheets. The printing controller 2 includes a print sheet counting part for counting consumption sheets of a print medium and a residual sheet decision part for obtaining residual sheets of paper based on the sheets of consumption and detection output of the residual detection mechanism.  The residual sheet decision part operates to stop a total unit the residual sheet detection mechanism detects the actual reach to predetermined sheets in the case where residual sheets obtained by calculation reaches predetermined sheets prior to the generation of a detection output from the residual sheet detection mechanism.
Patent JP-H06338706-A (JP)
Title: Antenna multicoupler and adjusting method for its matching circuit
Inventor: KOBAYASHI TAIZO
IPC: H01P1/213
Filed: 1993-05-31
Abstract: PURPOSE:To provide the antenna multicoupler which has the characteristic improved and has the shape miniaturized and contributes to performance improvement and miniaturization of a mobile communication equipment. CONSTITUTION:In the antenna multicoupler where a dielectric filter 10 for reception and a dielectric filter 20 for transmission are provided and one ends of both of dielectric filters 10 and 20 are connected to an antenna common terminal 1 through a matching circuit 3 consisting of transmission lines, the characteristic impedance of at least one of a transmission line 4 connecting the antenna common terminal 1 and the dielectric filter 10 for reception and a transmission line 5 connecting the antenna common terminal 1 and the dielectric filter 20 for transmission is set to a value other than the reference characteristic impedance value of a circuit to which the antenna multicoupler 1 is connected, and the overall impedance of dielectric filters 10 and 20 for transmission and reception and transmission lines 4 and 5 is set to the reference impedance value.
Patent JP-S5943605-A (JP)
Title: Solid-state waveguide
Inventor: ITOU OSAMU
IPC: H01P3/12
Filed: 1982-09-04
Abstract: PURPOSE:To obtain a solid-state waveguide having high dimensional accuracy, by constituting the titled waveguide with a solid-state waveguide section formed into a prescribed shape with a high dielectric material and a guide section formed on the surface of the solid-state waveguide section as a metallizing layer. CONSTITUTION:The long rectangular solid-state waveguide section 11 is formed with a material showing a high dielectric to high frequencies. Thus, the waveguide section is formed directly different from a conventional one, forming the waveguide section with air gap of a pipe. Then, the waveguide section with high accuracy is attained. Further, the guide section 21 is formed on the side circumference of the solid-state waveguide section 11 as the metallizing layer. Thus, no air gap exists between the solid-state waveguide 11 and the guide section 21 and the disturbance of a radio wave at the boundary of both can be neglected. The solid-state waveguide having high dimensional accuracy is obtained with the solid-state waveguide 11 and the guide section 11 in this way.
Patent JP-S5378705-A (JP)
Title: Driving circuit for electronic switch
Inventor: TAKAMURA MASAO
IPC: H03K17/78
Filed: 1976-12-23
Abstract: PURPOSE:To eliminate the effect of the trigger current for the main current by producing the trigger current for the switch driving from part of the main current of the switch path, and thus to eliminate the noise occurrence in case the current piling or the synchronous pulse driving is carried out.
Patent JP-H06343243-A (JP)
Title: Sealing structure of fan motor
Inventor: SUEMATSU MASANORI
IPC: H02K7/14
Filed: 1993-05-31
Abstract: PURPOSE:To suppress a reduction in life caused by defective insulation of a motor and foreign matter on a bearing by preventing the inflow of dust, moisture and the like in the inside of the motor caused by the inertial stream of air at the instance when a fan is stopped. CONSTITUTION:A plurality of grooves, which are inclined at the specified slant angle with respect to circumferential direction, are arranged in the circumferential direction in a sealing part at the plane, where a rotating part and a fixing part face. The sealing part having the groove lines is provided in the sealing structure of a fan motor. In this structure, the following parts are provided. A herringbone groove 51 comprising two sets of the groove lines is provided at the sealing part 5. The inclinations of the grooves of the groove lines 51a and 51b are inclined in the reverse directions to each other. A circumferential groove 52, which is extending in the circumferential direction, is provided in the vicinity of the center of the herringbone groove 51. A throughhole 53 leads the circumferential groove 52 to the open air the outside of the fan motor.
Patent JP-S5579078-A (JP)
Title: Manufacture of decorated plate
Inventor: MATSUDA HIROSHI
IPC: B05D5/06
Filed: 1978-12-12
Abstract: PURPOSE: To form an irregular torn pattern on the end portion of pattern-formed position by the procedure in which an adhesive tape is covered on a colorant coated over the pattern-formed position and the non-patterned position coated with an adhesion inhibitor of a base plate and then peeled off.  
     CONSTITUTION: The base plate 1 is fed into between the first press roll 7 and the first coating roll 8 corresponding to the non-patterned position 2 in order to coat the adhesion inhibitor 3 on the non-patterned position 2, and then the base plate 1 is fed into between the second press roll 9 and the second coating roll 10 in order to coat the colorant 5 over the patterned position 4 and the end of the adjacent non- patterned position 2. Furthermore, the base plate 1 is fed into between the third rolls 11 in order to press the adhesive tape 6 on the colorant 5 layer and then the adhesive tape 6 is peeled off by moving vertically and rapidly the winding roll 12. Whereupon, the colorant 5 on the end of the non-patterned position 4 is separated with the tape 6 and the colorant 5 on the end of the adjacent patterned position 4 is randomly peeled off. Thus, the irregular torn pattern 13 can be formed every one pattern. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H0447032-A (JP)
Title: Underground construction and its construction method
Inventor: HAKIRI MICHIO
IPC: E21D13/00
Filed: 1990-06-13
Abstract: PURPOSE:To improve the efficiency of execution of work by providing a continued underground wall surrounding an underground space, a roof which consists of plural truss beams extended at the upper end of two opposite sides of the underground wall, and a floor which consists of truss beams provided in the underground space. CONSTITUTION:A continued underground wall 1 is constructed under the ground G from the ground surface to a holding layer S, and rails are laid at the work heads of two opposite wall bodies 1a of the continued underground wall 1. And truss beams 6 or truss beams 8 are laid on the rails continuously in the width direction, and PC steels are installed to the lower chords of the truss beams 6 to tense the PC steels. Then, on the upper side of a roof 2 constructed with the truss beams 6, floor materials 2a are stuck, and the first basement floor 3 is constructed with the truss beams 8. Consequently, a large underground construction can be constructed.
Patent JP-H11353858-A (JP)
Title: Information reproducer
Inventor: OWA TAE
IPC: H04N5/92
Filed: 1998-06-03
Abstract: PROBLEM TO BE SOLVED: To provide an information reproducer suitable for practical use in which a requested menu screen can be displayed quickly. SOLUTION: The information reproducer for reading out desired image information or menu information selectively from a recording medium 11 having a plurality of pieces of image information and menu information recorded and decoding the information thus read out comprises a means 37 for storing menu information read out from the recording medium 11 and subjected to decoding in the form of bit map data, and a control means 15 for reading out the bit map data of menu information requested to be displayed from the memory means 37 under a state where the menu information read out from the recording medium 11 and subjected to decoding is requested to be displayed and displaying a still image.
Patent JP-H0516600-A (JP)
Title: Pressing tool and pasting method for adhesive sheet
Inventor: YAMASHINA HIDEO
IPC: E04F13/07
Filed: 1991-06-26
Abstract: PURPOSE:To provide a pressing tool for adhesive sheets, which can press an adhesive sheet and a body on which the adhesive sheet is attached while opening holes, and at the same time, removing air bubbles. CONSTITUTION:A pressing tool 1 presses an adhesive sheet 2 and a body 3 on which this adhesive sheet 2 is attached, while removing air bubbles 4 which are generated between those two parts. A plurality of needles 11 are vertically provided on a base plate 14 with the tips facing outward, and at the same time, an elastic body which has a longer thickness than the length of the needles 11 is provided in such a manner that the needles 11 are wrapped by the elastic body 12.
Patent JP-S5855512-A (JP)
Title: Method for judging condition of blast furnace
Inventor: KANI AKIRA
IPC: C21B7/24
Filed: 1981-09-29
Abstract: PURPOSE:To measure quantitatively and conteniously the unfused ore dropping to a tuyere by analyzing the photographs of the race way condition before the tuyere which sends pressurized and heated blast into a blast furnace. CONSTITUTION:Heated high pressure blast is blown into a blast furnace 1 from an annular tube 2, and a race way 3 is generated before a tuyere port. A mechanical shutter 5 is placed facing opposite to the tuyere-peep hole 4 at the opposite side of the tuyere, and said shutter 5 is rotated at a predetermined speed by means of a motor 6 controlled by a device 11. When the position of slit of the shutter 5 coincides with the hole of a pinhole-plate 7, a television camera 10 operates electron scanning of the ray passing through a film 8. Consequently, while the slit passes above the hole, an afterimage is made on a pick up tube and one piece of the image is completed. The degrees of brightness are different between the cases when falling of unfused charge is not of served and falling of coke is only observed (small white particle image) and when falling of unfused charge along with coke is observed (shadow image). When this brightness is lower than the predetermined standard value, the amt. of the unfused ore is calculated on the base of the size and transparency of the dark part.
Patent JP-H0446415-A (JP)
Title: High frequency signal changeover circuit
Inventor: OKUBO FUYUKI
IPC: H03K17/76
Filed: 1990-06-13
Abstract: PURPOSE:To ensure the isolation of the 1st intermediate frequency band of a satellite broadcast signal and a satellite communication signal by providing an amplifier circuit comprising two-stage transistors (TRs), a changeover circuit comprising a PIN diode and a shield case covering the circuits to the system. CONSTITUTION:Upon the receipt of a satellite broadcast signal, a satellite communication signal is attenuated by turning off 2-stages of TRs amplifying a satellite communication signal in a 2nd amplifier circuit 80 and three PIN diodes 73, 76, 77 of a 2nd changeover circuit 81 and the satellite broadcast signal is sent to an output terminal 40 without attenuating the signal by turning on two-stages of TRs amplifying a satellite broadcast signal and three PIN diodes 33, 36, 37 of a 1st changeover circuit 79 and the satellite broadcast signal is sent to an output terminal 40. Moreover, each amplifier circuit and each changeover circuit are shielded so that the satellite communication signal is not invaded in a satellite broadcast input terminal to secure the isolation of 65dB or over. In the case ore receiving the satellite communication signal, the isolation is secured similarly.
Patent JP-H0820536-A (JP)
Title: Novel prenyl 6-3c compound derivative
Inventor: FUKUYAMA YOSHIYASU
IPC: A61P25/28
Filed: 1994-07-06
Abstract: PURPOSE:To obtain the new prenyl 6-3C compound derivative useful for the therapy of various diseases caused by the disorders of cholinergic nerve cells. CONSTITUTION:The CH2CH=CH2,-CH2CH2CH3; R<2> is H, 2-4C acyl; R<3> is H, 1-4C alkyl 2-4C alkyl, 2-4C acyl). The compound is obtained e.g. by extracting the epigeal part of Illicium tashiroi Maxim with methanol, ethanol, etc., concentrating the extract under vacuum, and subsequently isolating the compound from the obtained first extract by various methods using the physicochemical properties of the objective compound. The compound is useful for the therapy of senile dermentia including Alzheimer's disease; cerebrovascular dementia accompanied by cerebral hemorrhage (cerebral hemorrhage, cerebral infarction), cerebral arteriosclerosis, etc.; dysmnesia accompanied by head injury, encephalitis aftereffect, cerebral palsy, etc.; and further for the therapy of peripheral neuropathy.
Patent JP-S5858470-A (JP)
Title: Stirrer in automatically analizing device for biochemistry
Inventor: YANAI SHINICHI
IPC: G01N35/00
Filed: 1981-10-01
Abstract: PURPOSE:To keep the speed of chemical reaction  constant quickly, by providing a heater built-in in a stirrer and semi-fixing the middle part of a stirrer shaft and connecting a motor shaft giving a stirring motion with the stirrer shaft by keeping it eccentric. CONSTITUTION:A stirrer 7 is arranged so as to make a stirring motion by driving of a stirring motor 12. The upper end of the stirrer 7 is fixed at the position made eccentric from the center of a round plate 11 and the stirrer 7 is eccentrically rotated in accordance with revolving motion of the round plate 11, and the stirrer 7 is semi-fixed through a rubber packing 9 at a fixture 8 fixing the stirrer which is disposed around the center of the stirrer. A lead wire 18 of electric source for heating is drawn out on the halfway of the stirrer 7 shaft and its take-out opening 18a is arranged so as to be rotated always to a fixed direction. By this way, a cut of the lead wire 18 is eliminated. By such a way, a sample is stirred and heated efficiently and the speed of chemical reaction is kept constant quickly.
Patent JP-H0715737-A (JP)
Title: Cathode-ray tube device
Inventor: YOKOTA MASAHIRO
IPC: H04N9/28
Filed: 1993-06-25
Abstract: PURPOSE:To improve the microconvergence that is symmetrical to a horizontal deflecting axis and reversely symmetrical to a vertical deflecting axis by connecting the 1st and 2nd auxiliary coils in series to a pair of horizontal deflecting coils and a pair of vertical deflecting coils respectively and connecting a 3rd load part to the 2nd auxiliary coil. CONSTITUTION:The impulsive inductive electromotive force is generated in a high frequency at a magnetic coupling part 32 of a conduction loop 30 by the magnetic flux of a 1st auxiliary coil 11. Thus an inductive current of an almost sawtooth shape flows to the loop 30. The load of a load part 33 is proportional to the magnetic permeability of a closed circuit magnetic core 34. However the load of the part 33 varies due to the change of magnetic permeability caused by the magnetic flux generated by auxiliary coil 21 that is wound round the core 34. Therefore the level of the induced current of a sawtooth shape flowing to a short circuit loop is larger at the upper and lower parts of a screen and smaller on a horizontal axis. Thus the misconvergence of a center beam is improved at the periphery of the screen. An auxiliary magnetic field is minimized on the horizontal axis since the load of the conduction loop is maximized. This load is reduced with increase of the vertical deflecting value and a pattern can be corrected.
Patent JP-S641126-A (JP)
Title: Optical pickup device
Inventor: YOSHIMATSU HIROSHI
IPC: G02B7/28
Filed: 1987-06-22
Abstract: PURPOSE: To attain small size of a device by arranging a 1st and 2nd photodetectors on same plane and making 1st or 2nd light outputted from an optical path length difference generating means comprising a lamination of glass and uniaxial crystal substance into the 1st or 2nd focus error photodetector in front or at the back of its focus.  
     CONSTITUTION: The optical path length difference generating means 13 comprising a lamination of glass and uniaxial crystal substance having an optical axis of a prescribed direction is arranged with a tilt of nearly 45° with respect to the optical path. When the optical path length difference generating means 13 passes reflected light from a collimator lens 3, the light passing through the glass 15 is separated into a normal ray and an abnormal ray in the process of passing through a crystal 16, a difference is caused to the optical path length of two output lights in response to the refractive index of them and spots 11, 12 are formed respectively to the 1st and 2nd photodetectors 7, 8. Since the two light beams collimated nearly and having an optical path length difference are obtained, the 1st and 2nd photodetectors 7, 8 are arranged on same base 14 to form the optical pickup device to be of small size. 
     COPYRIGHT: (C)1989,JPO&Japio
Patent JP-S5486796-A (JP)
Title: Device for coupling boxes for flexible wire tube
Inventor: MORITA KAZUO
IPC: H02G3/06
Filed: 1977-12-21
Abstract: PURPOSE: To enable coupling of a flexible wire tube with a box for the tube without separating insulating coating of the tube by employing a clamp nut, and a spring ring making contact with metal portion upon breaking of the coating by clamping the nut.  
     CONSTITUTION: A spring ring 9 formed with a pawl 8 and a clamp nut 6 are engaged with a flexible wire tube A having an insulating coating B and metal portion C. The nut 6 is screwed with a coupler 3 secured to a box E to thereby compress the ring 9 inwardly. Thus, the pawl 8 pierces the coating B to make contact with the metal portion C to thereby electrically connect the tube A to the box E via the ring 9 and coupler 3. Since the tube can be coupled with the box without breaking the coating, it can rave the piping work. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S5778919-A (JP)
Title: Oil smoke filter with fire-preventing function
Inventor: TOMINAGA MASAO
IPC: B01D45/08
Filed: 1980-11-04
Abstract: PURPOSE: To trap fat and oil contents of smoke and prevent oil smoke from flowing out to a duct side in the case of abnormally high temperature by a method wherein tubular bodies in the form of truncated pyramids are placed in a casing in multiple stages to form gaps for passage, and a means for opening and closing the gaps by moving the tubular bodies of upper and lower stages is provided.  
     CONSTITUTION: An oil smoke sucked-in through an inlet port 9 is compressed by slanted inside surfaces of the truncated pyramid shaped tubular body 11 at the lowermost stage, then it is released from compression at an upper part of the body 11, and part of it is diffused into the interior of the casing 8 through the gap 13, while the remainder flows upwardly into the tubular body 11 at the second stage. Thus, the oil smoke is subjected to compression and release repeatedly in a multi-stage manner, whereby the fat and oil contents in the smoke are trapped at the inside and outside surfaces of the tubular bodies 11. The smoke diffused in the interior of the casing 8 is rectified by rectifying plates 18 and flows upwardly to reach an outer port 10. When an abnormally high temperature due to a fire is detected by a detector 22, an operating mechanism 27 is operated to simultaneously retract holders 25 provided at each stage, so that the tubular bodies 11 at each stage fall to close the gaps 13, thereby preventing the oily smoke from flowing in the direction from  the inlet port 9 to the outlet port 10. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-S6313248-A (JP)
Title: Ion source
Inventor: TAKAYAMA KAZUO
IPC: H01J27/08
Filed: 1986-07-03
Abstract: PURPOSE:To enable ion current large and of long life to be obtained, by disposing an ion-drawn port of a main discharge chamber, small holes of partition walls, and a sub-discharge chamber serially on the identical axial line and then installing e magnet outside the main discharge chamber. CONSTITUTION:Because an ion-drawn port 5, small aperture 7, and a subdischarge chamber 4 are disposed on the identical axial line 14, plasma generated in the sub-dischrage chamber 4 is ejected through the small aperture 7 to approach the forward ion-drawn port 5, so that the main discharge is performed near the ion-drawn port 5. A large amount of ions generated then can be drawn from the drawn port 5, resulting in becoming large ion current. when a magnetic field 15 is formed along the axial line 14 by using a magnet 13 besides, the plasma ejected through the small aperture 7 into the main discharge chamber 3 can be prevented from dispersing, and the plasma high in both density and temperature can be formed inside the main discharge chamber 3, capable of enlarging the ion current furthermore.