baber/WOPTO huggingface dataset:
Patent JP-H11218964-A (JP)
Title: Image forming method
Inventor: FUJIKAWA HIROYUKI
IPC: G03G15/08
Filed: 1998-02-02
Abstract: PROBLEM TO BE SOLVED: To obtain good image characteristics stably for a long period by incorporating a toner binder resin specified in the acid value of the total polymer components, and a charge controller containing a specified imidazolium salt. SOLUTION: The toner binder resin has the acid value of the total polymer components of 0. 5-50 mg KOH/g, and the charge controller contains a polymer having the structural units of imidazole salts represented by one of formulae I and II in which each of R1 -R8 is an H or halogen atom or an alkyl, cycloalkyl aryl, allyl, aralkyl, alkoxy, amino, halogen or heterocyclic group; (m) is an integer of >=1; X<m> is an anion; R9 is a bonding group selected from phenylene, propenylene, vinylene, and alkenylene groups optionally having an ether bond; (n) is an integer of 2-100; and X<m> is a couter anion.
Patent JP-H06210897-A (JP)
Title: Image writing device
Inventor: ISHIZUKA TETSUO
IPC: G02B26/10
Filed: 1993-01-13
Abstract: PURPOSE:To prevent influence of vibration of a motor on a reflecting system of a laser light in an image forming apparatus of the type for writing image information on a photosensitive drum by using the light. CONSTITUTION:A laser light output assembly 32 and a plurality of mirrors (m) for constituting an image writing unit 30 are disposed at an upper part of an image forming apparatus in a state supported to a frame 31. The frame 31 for supporting component members of the unit is formed as a member for performing different vibration characteristics for those of many motors, etc., provided in an apparatus body, and provided as a mechanism which is not resonated with the vibration of the motor, etc. Further, rigidity of a mirror itself is increased by increasing its section modulus, mounting a reinforcing member at its rear surface of a mirror m3 thereby to vary vibration characteristics, thereby eliminating disorder in a reflected light.
Patent JP-H03227960-A (JP)
Title: Production of polyaminodiphenylmethane
Inventor: KUMAGAI YOSHITOSHI
IPC: C07C211/49
Filed: 1990-01-31
Abstract: PURPOSE:To efficiently obtain the title compound in high yield useful as a raw material for producing high-quality polyisocyanate by nirating 2- nitrodiphenylmethane and reducing a prepared mixture consisting essentially of 2,4'-dinitrophenylmethane. CONSTITUTION:2-Nitrodiphenylmethane readily obtained by Friedel-Crafts reaction of a compound shown by formula (X is halogen or OH) and benzene is subjected to solventless liquid-phase reaction with preferably a mixed acid of conc. nitric acid and conc. sulfuric acid as a nitrating agent preferably at 40-80 deg.C for 10-180 minutes by gradually dripping the nitrating agent. Then the prepared mixture consisting essentially of 2,4'-dinitrodiphenylmethane is reacted with a metal such as granular tin or a metallic compound and hydrochloric acid as a reducing agent in a solvent at 30-70 deg.C preferably for 1-3 hours under reflux by heating and nitro group is reduced into amino group to give the objective compound in high yield, industrially and advantageously.
Patent JP-H09197836-A (JP)
Title: Image forming device
Inventor: TAMURA SATOSHI
IPC: G03G15/16
Filed: 1996-01-12
Abstract: PROBLEM TO BE SOLVED: To prevent the staining of a transfer sheet and a recording material caused by a patch image by separating the part facing an image formed on a photoreceptor drum, of a connecting member connecting a pair of disk members from the transfer sheet, with a dielectric. SOLUTION: A transfer device arranged to face the photoreceptor drum is provided with a transfer drum pivotally supported to rotationally drive and a transfer electrifier is arranged to face the photoreceptor drum inside the transfer drum. This transfer drum is formed in such manner that a pair of the disk members 5q, a shaft member 5s inserted through the centers of the disk members 5q, to connect them, the connecting member 5r for mechanically connecting a part of the outer peripheral parts of the disk members 5q and the transfer sheet 5f extended in the opening area of the periphery of the connecting member 5r are integrally constituted.  The connecting member 5r has a recessed part 50, that is, a region facing a position where a density control patch on the photoreceptor drum is formed is hollower toward the center of the transfer drum than the other region of the connecting member 5r. The recessed part 50 is filled with polycarbonate 51 of the same member as the transfer sheet 5f, as the dielectric.
Patent JP-H03226108-A (JP)
Title: Digital filter device
Inventor: ICHIHARA MASAKI
IPC: H03H17/02
Filed: 1990-01-31
Abstract: PURPOSE:To minimize the capacity of ROMs by inverting the polarity of outputs of the two ROMs and replacing the outputs. CONSTITUTION:A cosXk(tL) is stored in a cosine ROM 7 and a sin Xk(tL) is stored in sine ROM 8. A logic circuit 9 activates internal inverting circuits 17, 18 and data selectors 19, 20 in response to values pk, qk stored in D flip-flops 15, 16 in a sequence circuit 10 and applies its output to D/A converters 11, 12. An inverting circuit 17 inverts the polarity of the output of the cosine ROM 7 when pk+qk is 1 and an inverting circuit 18 inverts the polarity of the output of the sine ROM 8 when the pk is 0. When the upper input is selected when the qk is 0 and the lower input is selected when the qk is 1 by the data selectors 19, 20 and the selected level is outputted respectively to the D/A converters 11, 12. Thus, the capacity of the ROM is reduced to 1/4 in comparison with that of a conventional circuit.
Patent JP-S58138255-A (JP)
Title: Intake device of engine
Inventor: NAKANO YUKIYOSHI
IPC: F02M35/108
Filed: 1982-02-13
Abstract: PURPOSE:To enhance output power and to simplify the constitution by furnishing a check valve in the communication passage between two intake lines and thereby eliminating inconvenience owing to blowing-back. CONSTITUTION:Part of a new air, which is obtained in the range from a primary carburettor 4 to No.1 intake passage 5 on its downstream side in case the primary carburettor 4 is in operation and the secondary carburettor 7 out of operation, is led to No.2 intake passage 8 through a communication line 14 to dilute the residual gas in the passage 8. Thus improvement of combustion is obtained. A check valve 17 is furnished in the communication line 14, so that no blowing-back will be led toward No.1 intake line 5 through the communication line 14.
Patent JP-H03226981-A (JP)
Title: Spark plug of internal combustion engine
Inventor: SAWAMOTO KUNIAKI
IPC: H01T13/24
Filed: 1990-01-31
Abstract: PURPOSE:To obtain a good sparking property of a spark plug at low temperatures and also avoid the edge portion of the spark plug from being consumed in early stages by providing a first center electrode made of a metal of a low coefficient of expansion, a second center electrode made of a metal of a high coefficient of expansion and a side electrode having a bimetal portion. CONSTITUTION:At low temperatures as in the cold start of an engine the edge 6a of a first center electrode 6 is projected toward the end portion of a side electrode 5 more than the end of a second center electrode 7 so that discharge spark takes place between the edge 6a of the first center electrode 6 and the side electrode 5. At high temperatures the end 7a of the second center electrode 7 is projected more than the edge 6a of the first center electrode 6 because of a difference in thermal expansion between the first center electrode 6 and the second center electrode 7 so that discharge spark takes place between the second center electrode 7 and the side electrode 5. In this case the bimetal portion 8 of the side electrode 5 is deformed in such a way as being separated from the center electrode 6 and so a discharge gap will not be excessively reduced. A good sparking property of the spark plug is thus obtained at low temperatures and also the edge portion of the spark plug is avoided from being consumed in early stages.
Patent JP-H11220346-A (JP)
Title: Automatic gain control circuit
Inventor: SHIMIZU MASAHIKO
IPC: H04J13/00
Filed: 1998-02-02
Abstract: PROBLEM TO BE SOLVED: To reduce the scale of an automatic gain control circuit to the gain control parts of both preceding and next stages. SOLUTION: An automatic gain control circuit 9 includes a comparison part 10 which controls a gain control part 3A of the preceding stage of a variable gain amplifier, a variable attenuator, etc., and a gain control part 4 of the next stage of the variable gain amplifier, etc., and compares the output signal of the part 4 or a detection part 5 with its reference value, a 1st gain control signal output part 11 which outputs the gain control signal of the part 4 based on the comparison output signal of the part 10, and a 2nd gain control signal output part 12 which has a larger time constant than the part 11 and outputs the gain control signal of the part 3A based on the comparison output signal of the part 10.
Patent JP-S60165654-A (JP)
Title: Electrophotographic sensitive body
Inventor: KAJIURA SADAO
IPC: G03G5/047
Filed: 1984-02-09
Abstract: PURPOSE:To enhance acceptance potential and photosensitivity by successively laminating on a conductive substrate an electrostatic charge generating layer and a charge transfer layer, and in this electrophotograhic sensitive body, further forming another charge transfer layer between the conductive substrate and the charge generating layer. CONSTITUTION:An intended electrophotographic sensitive body is obtained by forming a charge transfer layer contg. an electron transfer agent, such as 2,4,7- trinitrofluoren-9-one and a binder, such as polycarbonate, on a conductive substrate, then, laminating successively on this layer a charge generating layer contg. a charge generating material having an absorption band in a longer wavelength region. such as metal-free phthalocyanine, and a binder resin, and a change transfer layer transmitting visible light in the longer wavelength region, such as p-diethylaminobenzaldehyde-(diphenylhydrazone), and a binder.
Patent JP-S60167275-A (JP)
Title: Temperature controller of fuel cell plant reformer
Inventor: MATSUMURO HARUO
IPC: C01B3/38
Filed: 1984-02-09
Abstract: PURPOSE:To prevent local increase in temperature in a reformer and keep catalyst temperature optimum by arranging a temperature detector in a tube near a heat source and increasing the amount of air according to the temperature difference when the detected temperature exceeded the setting temperature. CONSTITUTION:A catalyst temperature detector 11 is arranged at the end of tube 1A within a reformer 1, and a pilot burner fuel control valve 9 and a pilot burner air control valve 10 are controlled so that catalyst temperature C becomes setting temperature TRs1. A tube temperature 21 is set near a heat source of the tube 1A, and a main burner air control valve 8 is controlled so that tube temperature does not exceed a setting temperature. Thereby, local increase in temperature in the reformer is prevented and catalyst temperature within the tube is kept optimum.
Patent JP-S52105158-A (JP)
Title: D8-dihydropimaride derivatives
Inventor: MURAI HIROSHI
IPC: A61P29/00
Filed: 1976-02-26
Abstract: PURPOSE: ▵ 8 -Dihydropimaride derivatives I (R is H or lower alkyl; m is O or 1; Y 1-3  are H, 1-3C lower alkyl, lower alkoxy, carboxyl, carboalkoxy, trihalogenomethyl, hydroxy or halogen), e.g. ▵ 8 -dihydropimaride. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S63188954-A (JP)
Title: Programmable logic array device
Inventor: KOYABU KUNIHIRO
IPC: H03K19/177
Filed: 1987-01-30
Abstract: PURPOSE:To realize the high density by a method wherein two wiring parts arranged in the gate-width direction can be arranged in individual drain regions in at least one part of drain regions of a group of transistors so that the interval between the wiring parts connected to the drain region can be narrowed. CONSTITUTION:At individual drain electrodes 801-80n, 901-90n for a first and a second MOSFET rows 101, 102 the gate width is widened and two metal wiring parts are arranged on the widened part; a contact hole is connected to only either of the two metal wiring parts. If the individual drain electrodes for the first and the second MOSFET rows 101, 102 are made, in the gate-width direction, to correspond to the two metal wiring parts arranged in the gate- length direction, the number of unused MOSFET's is reduced; the area length of the metal wiring parts is reduced; the high density is realized.
Patent JP-H01194230-A (JP)
Title: Indicating device for washing machine
Inventor: KIDA NOBUTAKA
IPC: H01H37/76
Filed: 1988-01-28
Abstract: PURPOSE:To allow a single display to indicate both that the power supply is put on and a fuse has blown by furnishing a judging circuit to judge that the fuse has blown and an indication control circuit to put off the display when the fuse is judged to have blown. CONSTITUTION:Because current is not supplied to a relay coil 13c when a fuse 14 in series connection with a washing motor 12 has blown as long as the power switch 5 is on and no command of operation is given to the motor 12, a relay switch 13b is in off condition. Accordingly the input terminal 22a of an AND gate 22 in a display control circuit 40 is at 11 level, and the LED will light up. If in this condition the wash command is given to a microcomputer 11 and the coil 13c is turned on to actuate the relay switches 13a, 13b, no current is supplied to the motor 12, and the terminal 22a is put into L level by a judging circuit 22. Accordingly LED 6 is put off to indicate that the fuse 14 has blown. In case another fuse 17 in series connection with a centrifuge motor 15 has blown, it goes in the same fashion as with the fuse 14.
Patent JP-S62176388-A (JP)
Title: Information system
Inventor: KIMURA KOUJI
IPC: H04N7/173
Filed: 1986-01-30
Abstract: PURPOSE:To offer information rich in content to the user by transmitting page picture data from a center to a terminal equipment side and superimposing on a television video signal and displaying. CONSTITUTION:The host computer 4 of the center 3 receives the requests from the terminal equipments 1A, 1B... through a communication network 2, reads the corresponding page picture data from a video tex data base 6 and supplies. A CATV line 10 receives a general broadcasting by a television antenna 15, a satellite broadcasting by a parabola antenna 16 and a television video signal TVIN0 obtained from a video signal recorder 17 and supplies to the terminal equipments 1A, 1B... and television receives 11A, 11B.... When one of receiving channels of the television video signal is designated, in the respective terminal equipments, designated channel data is transmitted to the center 3, the center 3 transmits the corresponding page picture data to the request outputting terminal to superimpose and display on the television video.
Patent JP-H08195518-A (JP)
Title: Laser oscillator
Inventor: OTSUBO SHIGERU
IPC: H01S3/097
Filed: 1995-01-13
Abstract: PURPOSE: To prevent a current at the time of a peak when a laser beam is excited, from flowing to a switch means, by providing a laser oscillator with a pair of discharge electrodes, a subordinate capacitor disposed in parallel thereto and the switch means equipped with a diode connected in parallel thereto. CONSTITUTION: A laser oscillator 11 is equipped with a pair of discharge electrodes 13a and 13b connected to the positive and negative sides of a DC power source 12 respectively and also with a main capacitor 14 connected in parallel to the discharge electrode 13b. Besides, a subordinate capacitor 15 is provided in parallel to the main capacitor 14 and the discharge electrodes 13a and 13b and on the positive side of the DC power source 12, while a switch means 16 constituted of a thyratron is provided in series to the subordinate capacitor 15 and on the negative side of the DC power source 12. Moreover, a diode 17 is provided in parallel to this switch means 16 so that the flow of a current from the negative side of the DC power source to the positive side thereof be allowed by this diode 17.
Patent JP-S53106128-A (JP)
Title: Ink jet printing and apparatus therefor
Inventor: KOMAI HIROMICHI
IPC: B41J2/01
Filed: 1977-02-28
Abstract: PURPOSE:To prevent clogging in nozzle and make ordinary paper available as recording paper by using a liquid containing no unvolatile component for liquid droplets jetted out from nozzle and effecting recording by coloration or discoloration of liquid droplets after jetting.
Patent JP-H02201094-A (JP)
Title: Fluid compressor
Inventor: MOROZUMI NAOYA
IPC: F04C18/344
Filed: 1989-01-31
Abstract: PURPOSE:To ensure smooth operation in simple construction and enhance the sealing performance and efficiency of a fluid compressor by constructing it in such an arrangement that a rotor with a spiral blade fitted in a spiral groove formed at the periphery is fitted in a cylinder arranged concentrically with the rotor of an electromotive element in such a way as capable of relative rotation. CONSTITUTION:A stator 5 of an electromotive element 3 is fixed to the inner surface of an enclosed case 2, and a cylinder 7 is fitted on a rotor 6 arranged inside thereof, wherein the two ends are supported rotatably by bearings 8, 9. A piston 11 is fitted in this cylinder 7 as a rotating element eccentrically in an amount (e). This piston 11 is provided at its periphery with a spiral groove 19 reducing its pitch from the suction end side gradually toward the discharge end side, and a spiral blade 21 is fitted in this groove 19 in such a way that it can advance and retreat freely. The space between the cylinder 7 and piston 11 is partitioned by blade 21 into a plurality of working chambers 22, and the fluid sucked into working chambers 22 from a suction hole 23 during the compressor being in operation is compressed one by one to be then discharged from a discharge hole 25.
Patent JP-S56119410-A (JP)
Title: Liquid fuel combustion apparatus
Inventor: SAITOU TOSHIHIKO
IPC: F23D11/24
Filed: 1980-02-22
Abstract: PURPOSE:To accomplish control of flame force and to make the structure of a combustion section straight and thin, by separating a vaporizing chamber and a mixing chamber by a partition having a vaporizing heater, and disposing a vaporizing and mixing element in a combustion chamber including a secondary combustion air feeding section. CONSTITUTION:A fan 2 and a fuel feeding means 3 are disposed at the front of a combustor 1, the inner space of which is divided by a partition 15 having a vaporizing heater 21 to form a vaporizing chamber 16 at the upper portion of said inner space and to form a mixing chamber 17 for mixing fuel vaporized in the vaporizing chamber 16 with primary combustion air at the lower portion of the inner space. Further, a vaporizing and mixing element 12 shaped in a cylindrical form is disposed in a combustion chamber 6 including a secondary combusting air feeding section 11 for burning air-fuel mixture formed in the mixing chamber 17 in the combustion chamber 6. With such a simple arrangement, it is enabled to make the combustor in a straight and thin form.
Patent JP-S60166564-A (JP)
Title: Four wheel steering device for vehicle
Inventor: KANAZAWA HIROTAKA
IPC: B62D7/14
Filed: 1984-02-08
Abstract: PURPOSE:To enhance the critical characteristic upon cornering to improve the characteristic of control, by changing the steering ratio of rear wheels when a vehicle speed detected by a vehicle speed sensor and a lateral acceleration obtained by the hydraulic pressure of a cylinder in a power steering unit exceed set values, respectively. CONSTITUTION:When a controller 23 determines that a vehicle speed detected by a vehicle speed sensor 21 and a lateral acceleration obtained by the hydraulic pressure of a cylinder detected by a hydraulic pressure sensor 22 exceed set values, respectively, a piston 16b in a same/reverse changeover unit 16 is moved inward by an actuator to communicate right and left chambers in a front cylinder 7 with right and left chambers in a rear cylinder 15, respectively. In this condition when a steering wheel is further turned so that the volume of the left chamber of the front cylinder 7 is reduced, oil discharged at this time flows into the left chamber of the second rear cylinder 15 to move a piston 15b rightward. Accordingly, as the steering angle is increased, rear wheels decreases their steering angle to enhance the critical angle upon cornering.
Patent JP-H09211507-A (JP)
Title: Optical equalizing amplifier and optical equalizing amplification method
Inventor: SUGAYA YASUSHI
IPC: H04B10/29
Filed: 1996-02-07
Abstract: PROBLEM TO BE SOLVED: To provide an optical equalizing amplifier which equalizes the optical levels of plural wavelength components and makes the light output levels constant at the time of amplifying wavelength multiplexed light. SOLUTION: A variable light attenuator 11 attenuates the wavelength multiplexed light according to the control of an AGBC circuit 12. A rare earth doped fiber 21 is excited by the exciting light formed by a light source 26 and amplifies the wavelength multiplexed light outputted from the variable light attenuator 11. An ALC circuit 25 controls the light source 26 in such a manner that the average light level of the wavelength multiplexed light outputted from the rare earth doped fiber 21 is made constant. A wavelength multiplexig coupler 27 fetches the light of the specific two wavelengths from the wavelength multiplexed light amplified by the rare earth doped fiber 21. An AGBC circuit 12 controls the attenuation quantity of the variable light attenuator 11 in such a manner that the light levels of the two wavelengths coincide with each other.
Patent JP-H04248090-A (JP)
Title: Press piping device with seal ring detecting function
Inventor: ISHIZAKA MASABUMI
IPC: G01M3/28
Filed: 1991-01-23
Abstract: PURPOSE:To prevent a failure of seal member installation by providing a means to contact with a seal ring holding section before a press die body contacts with a pipe fitting in initial operation and to output seal member detecting signals so as to press a pipe joint only when this means is working. CONSTITUTION:Before the operation of a press 30, a movable contact 11 is projected to the internal peripheral surface of a press die body 31, and the flange 11a of the movable contact 11 pushes a piezoelectric element 13 to output signals from the piezoelectric element 13 through a lead wire 14. The press 30 is operated to make the movable contact 11 abut on a ring holding section 25 before the pressing die section 94 of the press die body 31 is brought into contact with a pipe joint 23 and to detect the securing of a seal ring 40 by means of a magnetic sensor 15. At the same time, the movable contact 11 is pushed to cut off the output of electric signals. The press 30 is thus operated. However, when the seal ring is not yet secured, since the magnetic sensor 15 is not operated and electric signals are not cut off, the press is prevented from operating.
Patent JP-S62180528-A (JP)
Title: Optical recording and reproducing device
Inventor: KORI TOSHIYUKI
IPC: G11B7/0055
Filed: 1986-02-03
Abstract: PURPOSE:To reduce an area in which the variation of reflecting factor of a recording medium is imperfect and to attain stable recording, reproducing and erasing by making the second beam irradiate only an area which is irradiated by the first beam. CONSTITUTION:Laser light emitted from a light source 1 forms a nearly circular beam 19 on a recording medium 12. On the other hand, laser light emitted from a light source 2 forms an elliptic beam 20 on the recording medium 12. A drive controlling signal 24-b is a gate signal delayed from a drive control signal 24-a by T1, and when linear velocity is V, and the distance between the beam 19 and beam 20 is L1, the relation of T1, V, L1 is T1=L1/V. By making such drive control, only the area irradiated by the first beam 19 is irradiated by the second beam 20.