baber/WOPTO huggingface dataset:
Patent JP-H03282478-A (JP)
Title: Electrophotographic sensitive body
Inventor: SENOO AKIHIRO
IPC: C07C211/61
Filed: 1990-03-30
Abstract: PURPOSE:To enhance sensitivity and to stably maintain potential at the time of repeated uses by forming a photosensitive layer containing a specified fluorene compound. CONSTITUTION:The electrophotographic sensitive body is provided with the photosensitive layer containing the fluorene compound represented by formula I in which of Ar1 and Ar2 is an optionally substituted aromatic ring and at least one of them is a condensed polycyclic aromatic ring; each of R1 and R2 is H, alkyl, aralkyl, or aryl; and R3 is H, alkyl, alkoxy, or halogen, thus permit ting the obtained electrophotographic sensitive body to be high in sensitivity, small in variation between potentials in the light and in the dark and superior in durability.
Patent JP-S63243944-A (JP)
Title: Electrostatic recording body
Inventor: HAMADA HIROSUKE
IPC: G03G5/02
Filed: 1987-03-30
Abstract: PURPOSE:To prevent the untransfer of thin lines and abnormal electric discharge during high density recording by using resins which are positively and negatively chargeable by triboelectric charge in combination as the insulating resin of a dielectric layer and by previously generating electrostatic charges whose polarity is reverse to the polarity of electrostatic charges impressed for recording on the surface of the dielectric layer by rubbing. CONSTITUTION:When a dielectric layer contg. a pigment and insulating resin is formed to obtain an electrostatic recording body, resins which are positively and negatively charged when rubbed with a rubbing material are used in combination as the insulating resin. Electrostatic charges whose polarity is reverse to the polarity of electrostatic charges impressed for recording are previously generated on the surface of the dielectric layer by rubbing with the rubbing material. The previously generated electrostatic charges are insularly distributed, the size of each of the charges is 1-300mum and the charges are nearly uniform. In case of 1 dot thin line recording with an electrostatic recording device, the recording body forms a clear image without causing the untransfer of thin lines of abnormal electric discharge.
Patent JP-S57196663-A (JP)
Title: Dc component regenerating circuit
Inventor: WATANABE OSANORI
IPC: H04N5/18
Filed: 1981-05-29
Abstract: PURPOSE:To make the black level of a reproduced picture stable, by setting a level of the video signal at the blanking period to a prescribed level and performing the DC component regeneration after eliminating effect of black level deviation of a video signal and processing the waveform so as to reduce the black level to a peak of the black side. CONSTITUTION:A positive video signal is inputted to a video signal input terminal 1, and a switch signal is applied to a switch signal input terminal 20. A transistor (TR) 2 is conductive at the scanning period and outputs the video signal at a video signal output terminal 19. On the other hand, TRs 3 and 4 are conductive only during the blanking period. The inputted video signal is outputted to the video signal output terminal 19 in the waveform replacing the level at the blanking period into a collector voltage of a TR6, i.e., an output Q at the correction level generating section. Peak values at the black side in the video output signals can be arranged to a prescribed value by supplying this video output signal to the DC regenerating circuit.
Patent JP-H03283367-A (JP)
Title: Inter-board connector device
Inventor: IIIZUMI TAMIO
IPC: H01R24/00
Filed: 1990-03-30
Abstract: PURPOSE:To prevent connectors from being directly affected by the size tolerances of boards and make the connectors thin by pressing a male connector from the outside of the mating circuit boards, arranging a female connector between the boards, and directly coupling the coupling face of the female connector and tips of press-fit pins of the male connector. CONSTITUTION:Male and female connectors 1, 4 are used, a female connector housing section 4a is arranged between mating circuit boards 3, 5, the major section 1b of a male connector housing section 1a coupled with the female connector housing 4a is arranged outside the mating circuit boards 3, 5, and press-fit pins 2 serving as male connector terminals are pressed into the circuit board 3 to couple the male and female connectors 1, 4. The coupling face of the female connector 4 and tips of the press-fit pins 2 of the male connector 1 can be directly coupled. The male and female connectors 1, 4 can be prevented from being directly affected by the size tolerances of the boards 3, 5, and they can be made thin.
Patent JP-H11281515-A (JP)
Title: Helium leak testing device
Inventor: OKAMOTO HIDEKI
IPC: G01M3/20
Filed: 1998-03-27
Abstract: PROBLEM TO BE SOLVED: To provide a helium leak testing device in a simple structure to exert a predetermined force on a body to be tested regardless of the size of the body to be tested without affecting the seal of the body to be tested or the seal of a chamber. SOLUTION: A pneumatic cylinder 10 for fixing a body to be tested (work) W is provided for the upper part of a chamber 1, and a compressed air introducing opening 12 and an air entrance 13 are formed in the cylinder 10. A cylinder rod 14 connected to a piston 11 in the cylinder 10 is passed through a part of the chamber 1 and is protruded into the chamber 1. Compressed air is constantly supplied for the compressed air introducing opening 12 to protrude the cylinder rod 14 downward at all times. With the chamber 1 elevated, the body to be tested W is set on a base 1a, and the chamber 1 is lowered to seal the chamber 1. The body to be tested W is pressed by the cylinder rod 14, the body to be tested W in the chamber 1 is brought into close contact with the base 1a via a sealant 1c and is sealed.
Patent JP-S576836-A (JP)
Title: Data conversion method for reordered print
Inventor: HARA HARUO
IPC: G03B27/46
Filed: 1980-06-16
Abstract: PURPOSE:To perform data conversion to lengths of necessary cut pieces at the printing without measuring cut piece lengths except in special cases by writing the frame numbers of certain specific positions into an arithmetic device and inputting the frame numbers of reorders into the arithmetic device. CONSTITUTION:Cut pieces are arrayed on a showcase 1 in order of frame numbers, and the frame numbers are written on the cut pieces by a writing part 2. Thence, desired printing frame numbers and printing sheet numbers are inputted to an arithmetic part 4, and are written in an OMR reader 3. Based on the results of the operation by this part 4, either an indicating piece display 5-1 or 5-3 is lighted. The cut piece C1 of the lighted display 5-1 is inserted into a negative carrier 6 from its leading end, and the piece C1 is fed leftward by feed rollers 8. At this time, the film length is detected by a pulse motor 7, the length L of the piece C1 is measured, the length L-La up to the center of the frame of the frame number is operated by the part 4 and the piece C1 necessary for printing is data-converted to length.
Patent JP-H07293586-A (JP)
Title: Pulsation damper for clutch operation device
Inventor: HIGUCHI NORIHISA
IPC: F16D25/08
Filed: 1994-04-20
Abstract: PURPOSE:To make a housing main body light in weight with waste thickness portions removed after fastening strength has been secured, and letting pressing force by releasing pins act on the housing main body while being well balanced at the time of die-casting in the pulsation damper for a clutch operation device provided between a master cylinder and a slave cylinder. CONSTITUTION:A housing main body 15 is provided with a disc section 15a, and with pipeline connecting boss sections 15b1 and 15b2 which are connected in a row integrally to the disc section 15a while the center section of the disc section 15a is being held in between. The housing main body is made up of fastening boss sections 15c1 and 15c2 integrally connected in a row to the disc section 15a at both sides of a center section over a straight line L2 passing through the center section of the disc section 15a perpendicularly intersected with a straight line L1 connecting both the pipeline connecting boss sections 15b1 and 15b2 to each other, and of four connecting section 15d mutually connecting each space among the respective boss sections 15b1, 15b2, 15c1 and 15c2 which are adjacent to each other in the circumferential direction of the disc section 15a in such way that releasing pins 33 abut against thereon at the time of die-casting.
Patent JP-H10273845-A (JP)
Title: Device for forming hemstitched selvedge structure of shuttleless loom
Inventor: IZUMI ICHIRO
IPC: D03C7/08
Filed: 1997-03-31
Abstract: PROBLEM TO BE SOLVED: To provide a device for forming a hemstitched selvedge structure of a shuttleless loom hardly causing the change of the engaging state of a ratchet by the tension of a yarn. SOLUTION: This device for forming a hemstitched selvedge structure has a rotating and revolving planetary gear, a bobbin holder 22 having a connected and integrated holding plates 22a connected to the rotating and revolving planetary gear, a ratchet gear 5b, a bobbin 5 having a bobbin shaft pivotally supported between the each holding plate 22a, the first sleeve 23 fitted in a guide shaft 28 pivotally supported between the holding plates 22a and having the protruded first engaging fragment 29, the first selvage guide 24 penetrating the first sleeve 23 and elastically urged to the bobbin 5 side, the second sleeve 25 penetrated by the guide shaft 28 and having the second engaging fragment 32 keeping contact with the first engaging fragment 29 from the bobbin 5 side and protruded from the second sleeve 25, a ratchet pawl 26 protruded from the second sleeve 25, elastically urged to the bobbin side and engaging to the ratchet gear 5b, and the second selvage guide 27.
Patent JP-S61241167-A (JP)
Title: Thermal recorder
Inventor: TANIWA SHIGEYUKI
IPC: H04N1/23
Filed: 1985-04-18
Abstract: PURPOSE:To enable high-speed recording and image recording to be performed with uniform density and high quality, by correcting driving time of heating elements of a recording head on the basis of the total number of record dots in one section. CONSTITUTION:After a thermal head 4 is pressed against a recording medium 5, a carriage 2 is driven in a main scanning direction of arrow S, and simultaneously a predetermined number of the heating elements arranged in a row in a sub-scanning direction of arrow F on the front surface of the head 4 are selectively supplied with heating pulses for each movement over a predetermined interval to generate heat, whereby recording is conducted with a dot matrix pattern. For each of boxes formed by dividing a line on the basis of a predetermined number of the dot rows in the sub-scanning direction, weighting in the main and sub-scanning directions is conducted on the basis of the total number of record dots in the box to form heating pulse width correcting data, which are compared with reference values for correction, and pulse width correction is conducted on a box basis, so that it is possible to cope with the speed of heat accumulation in the heating elements in the recording head, and to cope with the magnitude of heat accumulation in the case where record dots are continuous in the main scanning direction.
Patent JP-S59209086-A (JP)
Title: Drive controller of synchronous motor
Inventor: INOUE KENJI
IPC: H02P6/16
Filed: 1983-05-09
Abstract: PURPOSE:To simplify the configuration of a drive controller of a synchronous motor by using a resolver as a detecting element and detecting a position signal, a speed signal and a load position signal. CONSTITUTION:An integer magnification signal generator 12 outputs a integer magnification signal A of an excitation signal of a resolver 10, a rectangular converter 13 outputs a rectangular signal D to detect the zero cross point of the phase modulation output C of the resolver 10. A position detector 20, a speed detector 30 and a load position detector 40 respectively outputs a position signal thetam, a speed signal omegaf and a load position signal thetaf in response to the signals A and D. A load position regulator 1 compares a position command 0 with a load position signal thetaf, outputs a speed command (omega), and a speed regulator 3 compares the speed command (omega) with the signal omegaf, and outputs a current command I. A 3-phase converter 4 converts the current command I into phase current commands Ia-Ic in response to the position signal thetam.
Patent JP-H01254098-A (JP)
Title: Acoustic equipment
Inventor: FURUKAWA KAZUNARI
IPC: H04R1/28
Filed: 1988-04-04
Abstract: PURPOSE:To attain small size and reproduction of an ultralow-pitched sound by using a port tube communicated between two cabinets so as to constitute a Helmholtz resonator and a low pass acoustic filter. CONSTITUTION:A 1st chamber 11 and a 2nd chamber 12 being sectioned a cabinet 1 are connected through a port 8 to constitute a Helmholtz resonator, and an aperture 13 is formed to the 2nd chamber 12 to constitute the low pass type acoustic filter. Then a vibrator 4 is fitted to the outer wall of the 1st cabinet 11 to drive the Helmholtz resonator at the inner face of the vibrating body 2 of the diaphragm 4 and the acoustic wave is radiated directly from the outer face and the cut-off frequency of the acoustic filter is selected higher than the resonance frequency of the Helmholtz resonator and lower than the open tube resonance frequency of the tubular port 8. Thus, small size is attained and ultralow-pitched sound is reproduced and a broad band acoustic equipment with less noise and distortion is obtained.
Patent JP-H11280561-A (JP)
Title: Egr valve device
Inventor: NAKAMURA HIDEAKI
IPC: F02M25/07
Filed: 1998-03-27
Abstract: PROBLEM TO BE SOLVED: To simply constitute a sensor with a high reliability by forming a hollow chamber on a case part of a valve motor for operating an EGR valve mechanism, and arranging a positioning part for a sensor substrate in a chamber for a sensor partitioned by a supporting wall part in the hollow chamber. SOLUTION: An EGR valve device is composed of an EGR valve mechanism 1 and a motor for an EGR valve, and a sensor rotor 37 is arranged on a rotor shaft 21 end part of the motor 2 in an opening end part side of a case part 3b. A sensor substrate 39 is mounted and supported on the supporting wall part 30 so as to be brought into sliding-contact with a sensor wiper 38 on the sensor rotor 37. In this case, the inside of the case part 3b is partitioned into a chamber 3c for a rotor and a chamber 3d for a sensor by the supporting wall part 30. The sensor substrate 39 is arranged on an opening end part side of the case part 3b, and is mounted on a vertical wall part 42 of the supporting wall part 30, and is positioning-supported to the case part 3b, and the opening end part of the case part 3b is closed by a cover 40.
Patent JP-H06270487-A (JP)
Title: Recorder
Inventor: OIDE TAKAHIRO
IPC: B41J19/18
Filed: 1993-03-16
Abstract: PURPOSE:To realize an accurate recording by detecting relationship between a drive timing of a carriage and an output timing of an encoder by driving the carriage for placing a recording head, and recording by correctly corresponding the drive timing to the output timing. CONSTITUTION:A recorder reciprocates a carriage 2 along a guide shaft 7 by a carriage motor 11, records a sheet by a recording head 1 placed on the carriage 2, and obtains a driving state of the carriage 2 by an output from a detector 29 of a linear encoder for detecting a scale 30. In this case, before starting to record, the carriage 2 is operated, and a difference DELTAt between a drive timing of the carriage at that time and an output timing of the encoder is detected. Then, when a recording operation is started, an encoder output timing t' corresponding to the recording position is decided according to a formula of t'=t+DELTAt from the timing (t) of the carriage 2 and a difference tdelta.
Patent JP-H05250645-A (JP)
Title: Load measuring mechahism for magnetic head
Inventor: FUKAWA MASANORI
IPC: G11B5/455
Filed: 1992-03-03
Abstract: PURPOSE:To provide a measuring mechanism which can accurately measure a load of a magnetic head in loading. CONSTITUTION:This measuring mechanism is provided with a clamp 69 which clamps a head arm assembly 1 to be tested in unloading state, a horizontal beam 633 which is fixed to a moving section 632 of an elevating mechanism 63, a balance mechanism 65 of which the center is supported on the horizontal beam 633, a contact plate 67 which is corresponding to a magnetic disk and fixed to the one end of the balance mechanism 65, and a tension stress gage 64 which is vertically connected to the other end. The balance mechanism 65 is a parallel link mechanism which consisting of two parallel and isometric link arms 651, 652 and two parallel connecting arms 653, 654 connecting both ends of both link arms respectively. Consequently, a measurement error caused by length of supporting arm 1b which is generated in force moment for a conventional strain gage is eliminated by adopting the tension stress gage and the balance mechanism, a vertical load of the head is accurately conveyed to the tension stress gage 64 by the parallel link mechanism 64, and weak load of the head is accurately measured.
Patent JP-S577178-A (JP)
Title: Gas laser tube
Inventor: TAKAHASHI NORIO
IPC: H01S3/038
Filed: 1980-06-17
Abstract: PURPOSE:To contrive the lengthening of life by directly installing a resonator mirror at one end of an external tube wherein the resonator mirror is installed at the other end by a supporter also serving as an anode and one end of a narrow tube provided along the central axis of the external tube is surrounded by a cathode in the external tube. CONSTITUTION:An external tube 2 is installed by reflecting laser light 8 by a half mirror 9 so that the light 8' may pass through the center of a narrow tube 1. Next, a mirror 7a is placed on the end surface 2a of the external tube to reflect the light 8' and the pattern of reflected light 8'' is projected on a screen 10. When a concentric pattern has been obtained, the mirror 7a and then a mirror 7b are sealed 6 by glass to finish a gas laser tube. A cathode 5 is previously pressed to the internal circumference of one end of the external tube 2 and surrounds the one end of the narrow tube 1 for installation. In this composition, the discharge current at the tip of the narrow tube is distributed to a wide area if the whole length is the same as the conventional one. Therefore, a deterioration in cathode decreases and the lengthening of life is attained.
Patent JP-H08243821-A (JP)
Title: Manufacture of raw material used for cutting tool
Inventor: TSUJI YUJI
IPC: B32B15/04
Filed: 1995-03-13
Abstract: PURPOSE: To enable a cutting tool to be used many times by repetitive re-polishing even though the cutting tool is worn on account of its use, by cutting a base material used for cutting tools in a direction normal to laminating direction and manufacturing plural raw material pieces used for cutting tools in which cemented carbide sintered body layer is formed continuously in axial direction on both sides of foundation material. CONSTITUTION: A base material A1 used for a cutting tool in which a cemented carbide sintered body layer 12 including cemented carbide material such as diamond or cubic crystal baron nitride etc., is provided on both surfaces of a plate-like foundation material 11 formed of cemented carbide alloy, is cut sequentially in a direction normal to laminating direction so as to manufacture plural raw material pieces 10 used for cutting tools and formed in a cylindrical pillar shape. The objective cutting tool is obtained by applying proper cutting edge forming process so that respective cemented carbide sintered body layer 12 may be positioned in a cutting edge part.  Since the cemented carbide sintered body layer 12 used for the cutting edge is continuously formed along the axial direction, even though a part of sharpened cemented carbide sintered body layer 12 is worn out, this layer 12 can be used by re-polishing the worn part many times.
Patent JP-S559127-A (JP)
Title: Inouctive coupling plasma spectroscope
Inventor: FURUBIKI SHIGEMI
IPC: G01N21/73
Filed: 1978-07-04
Abstract: PURPOSE:To form the title spectroscope system easy in analyzing solid sample, by combining solid sample grinding means and introducing means to plasma torch, placing them in the atmosphere of inert gas. CONSTITUTION:Sample grinding part 1, sample introducing part 2, etc., are established within the enclosed system shown in the dotted line. Sample is introduced into the introducing part 2, air inside the enclosure is exhausted, argon introduced within the enclosure from the bomb 3 and the inside of the enclosure is made into argon atmosphere. Then, the sample is delivered to the mill mixer 4 where the sample is ground, grains of desired diameter are screened and separated by wind sifter 5 and are delivered to agitation tank 6, and those grains of the diameter larger than the desired size are circulated back for regrinding. When grinding is finished, the solenoid valve 10 is opened, and the ground sample passing thru hopper 11, solenoid feeder 12, is weighed at the inclined chute type flow meter 13, and a prescribed quantity thereof is dropped into the sample introducing hatch 14. Then, the sample is supplied to the plasma torch 16 by the force of argon gas being blown out from the blower 15. At the torch 16, the sample is spectro- analyzed.
Patent JP-S57196280-A (JP)
Title: Optical memory eliminating device for electrophotograhic copying machine
Inventor: ANZAI TOSHIKI
IPC: G03G21/00
Filed: 1981-05-28
Abstract: PURPOSE:To make a high-quality copy possible from the first copy after separation, by executing automatically various copy processes for a photoreceptor to eliminate the optical memory, which the photoreceptor holds, when the upper part and the lower part of a copying machine main body are joined again after separation. CONSTITUTION:When a copy paper 9 is jammed in a carrying path during the copy operation, a detaining member 18 is released to separate an upper part 15 of the copying machine from a lower part 16, and the jammed paper is removed. In this case, since the upper part 15 is separated along the carrying system, the paper is removed easily. After removing the paper, the upper part 15 is joined to the lower part 16. In this case, an external light 19 is irradiated to a part 1a of a photoreceptor 1 when the upper part 15 is separated, and the optical memory effect acts upon this part. For the purpose of eliminating this optical memory, a detecting switch 20 which is closed for joining between upper  and lower parts is used to drive an optical memory eliminating device. The  copy operation is performed after this driving, and thus, a high-quality image is  obtained from the first copy after separation.
Patent JP-H01254261-A (JP)
Title: Particle washing apparatus
Inventor: HIRONAKA YASUMASA
IPC: B02B1/04
Filed: 1988-04-01
Abstract: PURPOSE:To prevent the adhering of impurities to an interior by discharging said impurities floating at the time of the washing of rice from a slit, by providing the slit to the side part of a washing case to allow the water of the upper part in the case to flow out. CONSTITUTION:When a set amount of rice is charged in a washing case 3 from a hopper 15, a water supply valve 21 is opened and, when water is introduced into the case 3, air is mixed with the water on the way of a water supply pipe 19 to separate the bran or chaff adhering to the surface of rice by water and air bubbles. Herein, since many longitudinal slits 32 are provided to the side wall part 3a of the washing case 3 so as to be integrated with and connected to the drain pipe 33 outside the case 3, when the amount of washing water is increased in the case 3 and a water level rises to the slits 32, floating impurities such as bran, chaff or the like can be discharged from the slits 32 by the outflow of water. Therefore, the adhesion and remaining of impurities on the inner surface of the case can be prevented and contaminated water can be discharged rapidly.