baber/WOPTO huggingface dataset:
Patent JP-H0425725-A (JP)
Title: Optical detector
Inventor: NAKAYAMA YOSHINOBU
IPC: G01J1/02
Filed: 1990-05-21
Abstract: PURPOSE:To detect a focus error signal and generate the wavelength control signal of a semiconductor laser, and to output a read signal of information on the surface of an optical disk by setting the pitches LAMBDA1 and LAMBDA2 of plural grating couplers within a specific range. CONSTITUTION:A buffer layer 15 is placed on an Si substrate 16 and a waveguide layer 13 is placed thereupon to constitute an optical waveguide, and the grating couplers 9 and 10 which differ in period are arranged at distances from the optical axis 10. The pitches LAMBDA1 and LAMBDA2 of the couplers 9 and 10 are so specified that LAMBDA0<LAMBDA1<LAMBDA0(1+LAMBDA0/D) and LAMBDA0(1-LAMBDA0/D)<LAMBDA2<LAMBDA0 hold, where D is the length in a coupling direction and LAMBDA0 is the pitch which optimizes the coupling at the time of vertical incidence. Further, a groove 17 for isolation is digged between the couplers 9 and 10 and light beams couples by the respective gratings do not interfere with each other. Optical waveguide mirrors 11 are provided at both ends of the groove 17 and the coupled light beams are converged efficiently to cope with the high speed of electric signals. consequently, the focus error signal is detected and the wavelength control signal of the semiconductor laser is generated.
Patent JP-S6022813-A (JP)
Title: Semiconductor integrated circuit
Inventor: KUZUHARA SHIGETAKA
IPC: H03F3/45
Filed: 1983-07-18
Abstract: PURPOSE:To obtain a differential amplifier with high amplification factor and high stability by dividing the circuit into a differential amplifier taking the highest potential on the circuit as its output amplitude and a differential amplifier the lowest potential on the circuit as its output amplitude. CONSTITUTION:The differential amplifier A1 taking the highest potential on the circuit as the output amplitude and the differential amplifier A2 taking the lowest potential on the circuit as the output amplitude are connected in parallel with input terminals 6 and 7, each output is led to the 1st output circuit 03 and the 2nd output circuit 04 and an output is extracted from a connecting point of both the output circuits 03, 04. Thus, the input amplitude of the highest potential or the lowest potential on the circuit is applied to each input of the 1st and 2nd output circuits 03, 04.
Patent JP-H078295-A (JP)
Title: Method of testing repetitive insult microorganism
Inventor: KIYARORU AN HESU
IPC: C12Q1/18
Filed: 1994-06-14
Abstract: PURPOSE: To provide a repeat insult microbial test method in which an antimicobial agent is applied to a porous permeable substrate.  
     CONSTITUTION: The porous permeable substrate is inoculated with microorganisms, and the porous permeable substrate is incubated for a predetermined period of time, at a temperature which is promotive to the growth of the microorganisms. The porous permeable substrate is reinoculated and reincubated a predetermined plurality of times and the inoculated porous permeable substrate is incubated for a final period of time between 18-24 hr at the temperature used previously. The porous permeable substrate is then examined, and the growth of microorganism is determined. 
     COPYRIGHT: (C)1995,JPO
Patent JP-S5557126-A (JP)
Title: Alignment detector for slit projection device
Inventor: KARASAWA YUKINORI
IPC: A61B3/12
Filed: 1978-10-24
Abstract: PURPOSE: To ensure a simple and assured alignment between the slit projection optical axis and the eyeball optical axis by providing the light reception part comprising the photo detectors arranged on the projection slit optical axis surface to the subject part put in opposition to the eye examination subject.  
     CONSTITUTION: One end 14a of optical fiber sheets 14 arranged in a row is arrayed at the both ends of the slit optical axis surface direction and in front of subject part 4 and nearly vertical position to slit optical axis surface 2b, and the other end 14b is led to eyepiece part 8 of camera 7. Sheet 14 is folded double at end 14b and opposing to surface 2b. Accordingly, the element fibers of the same number at both the right and left sides glow at end 14b when slit optical axis 2a coincides with the eye examination optical axis; while the number of the luminous fibers differ at the right and left sides according to the scale of the shift of both optical axes if any. In such way, the alignment between the slit optical axis and the eye examination optical axis can be detected in an assured and simple way. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S5253650-A (JP)
Title: Saw-tooth wave division circuit
Inventor: KIMURA TAKESHI
IPC: H03K4/08
Filed: 1975-10-28
Abstract: PURPOSE: The ring counter, which consists of D - FF using dynamic FF or electric charge transfer element, is installed. Then the output and input saw-tooth wave are added together in order to secure IC which is capable of saw-tooth wave division of optional integer ratio. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S61291013-A (JP)
Title: Preparation of ceramic filter
Inventor: KOYAMA TOMIKAZU
IPC: B01D39/20
Filed: 1985-06-18
Abstract: PURPOSE:To allow a release layer to function as the protective layer of a cast body and to facilitate handling after demolding, by forming the mold-release layer consisting of three layers to a gypsum mold and baking said release layer in a state adhered to the ceramic cast body. CONSTITUTION:Fine flat mineral particles of talc or sericite, fine inorg. particles of alumina or silica and a water permeable org. film comprising sodium alginate or sodium stearate are successively adhered to a gypsum mold as a first layer, a second layer and a third layer form a release layer. The first, second and third layers are respectively set to about 10mum, 30-1,500mum and about 10mum in a thickness. After the release layer was formed, a slip of fine ceramic particles having a fine average particle size is cast in the pores of the inner surface of the mold through the release layer and allowed to stand to be adhered to the mold while the slip no adhered is discharged to form a filter layer. After drying, the cast body is demolded from the gypsum mold and baked in such a state that the release layer is adhered as it is.
Patent JP-S61291537-A (JP)
Title: Production of 2-chlord-4-hydroxy-2-cyclopentenone compound
Inventor: SUGIURA SATOSHI
IPC: C07C67/00
Filed: 1985-06-18
Abstract: PURPOSE:To obtain the titled compound useful as a synthetic intermediate for novel prostaglandins, in high yield and selectivity, by using novel 2-chloro-3,4- dihydroxycyclopentanone compound as a raw material and subjecting the material to dehydration reaction, etc. CONSTITUTION:The objective compound of formula IV wherein R<2> is H can be produced by (1) epoxidizing 4-hydroxy-2-cyclopentenone compound of formula I (R<1> is protecting group of protected OH), (2) chlorinating the resultant 2,3- epoxycyclopentanone compound of formula II to obtain the novel 2-chloro-3,4- dihydroxycyclopentanone compound of formula III, and (3) dehydrating the product with a dehydration reaction reagent such as alumina, dicyclohexyl carbodiimide, etc., in a solvent (preferably dichloromethane, etc.) preferably at -20-+100 deg.C for 30min-20hr. The produced compound can be converted to another objective compound of formula IV wherein R<2> is R<1> by conventional deprotection reaction or conversion of the protecting group.
Patent JP-H11319082-A (JP)
Title: Intestinal solid separation device and intestinal lavage device
Inventor: HOSHINO MASAAKI
IPC: A61M3/00
Filed: 1998-05-14
Abstract: PROBLEM TO BE SOLVED: To provide an intenstinal solid separation device that separates intestinal solids from intestinal lavage waste from an intestinal lavage device that is used for intestinal lavage for an individual who has difficulty in defecation such as a bed-ridden aged person and artificial anus stoma user, and intestinal lavage executed for beauty and health care. SOLUTION: A device used for intestinal lavage equipment 80A, having a celom insertion means that has an intestinal lavage liquid injection channel 81 where an intestinal lavage liquid to be injected into the intestine circulates and a discharge channel 82 where a waste intestinal lavage liquid discharged from the intestine circulates, and is inserted into a skin opening of the anus or the intestine, a celom circuit 9, one end of which supplies the intestinal lavage liquid is connected to the injection channel 81, a waste recovery means that recovers and/or stores the waste liquid, and a discharge circuit 11 that connects the discharge circuit 82 and the waste recovery means.  And then, the intestinal solid separator 1 is in a waste circuit 11, has a waste inflow section 11a that waste flows into, a waste outflow section 11b communicating with the waste recovery means, a solid separation means 91 that partitions the waste inflow section 11a and the waste outflow section 11b, separates solids in the intestine from the waste, and has more than one voids whose mesh is 0.1 to 30 mm, and a solid storage container 92 that stores solids separated by the solid separation means 91.
Patent JP-H0426150-A (JP)
Title: Lead frame
Inventor: IMAMURA MASAHIRO
IPC: H01L23/50
Filed: 1990-05-21
Abstract: PURPOSE:To prevent malfunctionings, by configuring an LC filter on a signal line with a capacitor and coil component, the capacitor component being created through inserting a dielectric between a base electrode and a bonding pad of a signal lead, and the coil component being created through coating a bonding wire ranging from a chip to the signal lead with a magnetic material. CONSTITUTION:A dielectric 5 is inserted between a base electrode 1 and a signal lead 4, and thereby, a capacitor is created. Also, by coating a bonding wire 3 with a magnetic material, and L is created, the bonding wire ranging from the signal terminal of a chip 2 to the signal lead 4. Further, by the capacitor, the L, and an equivalent input capacitor 9 of the chip 2, an LC filter is configured on a signal line. In order that the height of an earth lead 7 is made to be the same as the signal lead 4, a metal 8 is inserted between the base electrode 1 and the earth lead 7. Thereby, a C component is created between the lead frame and the earth lead, and an L component is created in the bonding wire respectively. Therefore, the reflections of signals can be prevented.
Patent JP-H07320227-A (JP)
Title: Method and device for magnetic recording and/or reproducing and magnetic head assembly
Inventor: OMORI HIROYUKI
IPC: G11B5/23
Filed: 1994-05-20
Abstract: PURPOSE:To guarantee a good recording and reproducing and to increase the recording density by making the width of recording track small. CONSTITUTION:Let angle (b), which is the angle between a side surface 25a of a laminated magnetic film 25 of a first magnetic head HDA(HDB) and the surface of a magnetic gap 22 of a second magnetic head HDB(HDA) on a magnetic tape 4, be larger than 80 degrees but, smaller than 100 degrees. If the angle (b) is within the above range, cross talk becomes less, the dependabilty of the cross talk to the angle (b) becomes less and therefore, the cross talk is stabilized and is made less.
Patent JP-H11305363-A (JP)
Title: Radiation image reader
Inventor: HAYAKAWA KAZUYUKI
IPC: H04N1/04
Filed: 1998-04-27
Abstract: PROBLEM TO BE SOLVED: To obtain a radiation image reader capable of performing accurate reading by restraining the influence of vibration and magnetism in an image reading part for reading image information from a stimulable phosphor panel. SOLUTION: This radiation image reader is constituted of magnets 471a, 471b, 472a, 472b, 61a, 61b, 62a and 62b so that a cassette in which the stimulable phosphor panel where a radiation image is recorded is housed can be loaded, the stimulable phosphor panel can be carried from the cassette by a carrying part, and image information can be read from the stimulable phosphor panel by the image reading part, then, the stimulable phosphor panel 12 can be separated from the carrying parts 459 and 460 and moved to the image reading part 5 side. Furthermore, it is equipped with magnetism leakage preventing members 451, 452, 461, 462, 56 and 57 for preventing the leakage of the magnetism from the magnets.
Patent JP-S61288442-A (JP)
Title: Manufacture of semiconductor device
Inventor: SAITO TOMIYASU
IPC: H01L21/3205
Filed: 1985-06-17
Abstract: PURPOSE:To form a contact hole with excellent yield and enough positioning in a conductor pattern 2mum wide by a method wherein a resist pattern formed by excessive electron beam exposure to a resist layer covering an insulating layer is subject to directional ion etching process. CONSTITUTION:Al is evaporated on a substrate 1 to form a conductor pattern 2 2mum wide using photolithographic technology. Firstly an insulating layer 3 comprising PSG is formed on the substrate 1 using CVD process to flatten the surface and then a resist layer 4 is formed. The resist layer 4 above the conductor pattern 2 is irradiated with electron beams to form a contact hole and a spot 1mum in diameter is well exposed and then developed to form an etching hole 5. Secondly the substrate so far processed is set on a dry-etching device and RIE-processed with F ion to form a contact hole 6 around 1mum in diameter on the conductor pattern 2. Finally the size of contact hole can be adjusted by changing the processing time of RIE.
Patent JP-S5255597-A (JP)
Title: Ticket and coin separating device
Inventor: TSUKAHARA HIROTA
IPC: B07B13/00
Filed: 1975-10-31
Abstract: PURPOSE: To assure the passage of coins and improve the separation of the coins from paper materials by making the direction of the bristles of brushes approximately parallel to the front and rear surfaces of coins passing between the bristles of a pair of roll brushes. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S5921427-A (JP)
Title: Pre-treating method of drawing steel wire rod
Inventor: TANAKA HARUTOSHI
IPC: B21C9/00
Filed: 1982-07-29
Abstract: PURPOSE:To form an effective lubricating film, and to improve drawability, by forming continuous recessed parts in the surface of a wire rod by a mechanical descaler having projecting parts, and successively drawing the wire rod after pickling it and coating it with lime. CONSTITUTION:Three groups of bending rolls are arranged around an axis, a moving path (l) of a wire rod 4, to keep mutually equal angle of 120 deg.. Projections 11 are provided to each peripheral surface of rolls 6, 6',6'' to pierce continuous recessed parts in the surface of the wire rod 4. The scales of the wire rod 4 having recessed parts in its surface are perfectly removed in a pickling stage, and the burrs of the recessed parts are also removed, and then the wire rod 4 is dried after coating it with lime and is drawn in a drawing stage. In this drawing work, a lubricatnt is well stuck to the surface of wire rod because of the recessed parts of the wire rod, and the quantity of lubricant brought into the space between a die and the surface of wire rod is increased to provide an excellent drawability.
Patent JP-S5756873-A (JP)
Title: Method for fixation
Inventor: SANO HIDEAKI
IPC: G03G15/20
Filed: 1980-09-20
Abstract: PURPOSE:To eliminate the area incapable of fixation by placing plural flash lamps at regular intervals, and making each flash lamp generate light in order in the forward direction in every time when a form is fed by a distance corresponding to the sum of width of each flash lamp. CONSTITUTION:A continuous form 2 is carried at a constant speed in the direction as indicated with an arrow C. At first, a flash lamp 1A is made to generate light at time TA1. At time TA2 when a tip 2c of a primary fixation part 2b has reached this side of a lamp 1B, the lamp is made to generate light, and a secondary fixation part 2d is formed in front of the primary fixation part 2b. A time TA3 when the secondary fixation part 2d has reached this side of a lamp 1C, the lamp 1C is made to generate light, and a tertiary fixation part 2e is formed in front of the secondary fixation part 2d. At time TA4 when a rear end 2f the primary fixation part has moved by a distance L2=B1+B2+B3, the lamp 1A is made to generate light once again, and the fixation part 2b is formed. After that, said operation is repeated in the same way.
Patent JP-S5832591-A (JP)
Title: Laser working machine
Inventor: SUGISHIMA NOBUAKI
IPC: B23K26/00
Filed: 1981-08-21
Abstract: PURPOSE:To perform burr-free laser work with relatively simple structure by providing a member which bears specified position relation with a condenser lens in the vicinity of a burr generation, and scraping off a fused body immediately after it is produced. CONSTITUTION:A laser 2, a condenser lens 2, and a deburring member 5 are all fixed on the same base 20 and the position relation among them is made unchangeable. A body 3 to be worked is moved by a moving means 4, as shown by an arrow 14, in a plane nearly perpendicular to the optical axis of the laser to perform cutting work. Even on the reverse surface of the workpiece 3, a member 5 slightly shifted from a condensing point 11 in the moving direction scrapes off a fused body flowing to the circumference of a cutting line before it becomes a burr. If there is a burr on one or both surfaces of the workpiece 3, the deburring member 5 is set on the movement directional sides on one or both surfaces.
Patent JP-H10320743-A (JP)
Title: Magnetic recording medium
Inventor: SASAKI JUNICHI
IPC: G11B5/735
Filed: 1997-05-21
Abstract: PROBLEM TO BE SOLVED: To make a magnetic recording medium excellent in surface property, to reduce the interval loss between the medium and a magnetic head and to enhance the running preformance of the medium by specifying the difference between heights of two area different in relative lead area. SOLUTION: When the total area of protrusions 10 occupying the surface of magnetic a layer 3 is defined as S and cross sectional areas of the protrusions 10 by a cutting plane 11 in parallel with the magnetic layer 3 are respectively defined as a1 , a2 , a3 ..., (a1 +a2 +a3 ...)×100/S=20% is satisfied. Similarily, cross sectional areas of the protrusions 10 by a cutting plane 12 in parallel with the magnetic layer 3 are respectively defined as b1 , b2 , b3 ..., (b1 +b2 +b3 ...)×100/S=80% is satisfied.  When the height from the surface of the magnetic layer 3 to the cutting plane 11 is defined as B, and the height from the surface of the magnetic layer 3 to the cutting plane 12 is defined as A, the surface of the magnetic layer 3 is adjusted to 40 (nm)<=B-A<=45 (nm) by forming the magnetic layer 3 having the arithmetic average roughness Ra of <=25 nm and the average axial length of magnetic powder of <=0.15 nm and then performing a calender treatment.
Patent JP-S5356066-A (JP)
Title: Photoelectric analog display watch
Inventor: NOMURA YASUSHI
IPC: G04G9/00
Filed: 1976-11-01
Abstract: PURPOSE:To clearly indicate the clock time similarly to the pointer type watch in a photoelectric analog display watch in which the luminous diode, the liquid crystal, etc., are employed as the display element, by displaying the clock time such as hour, minute, and second, on one segment in different method.
Patent JP-S5557586-A (JP)
Title: Dc-38 substance and its preparation
Inventor: TOMITA FUSAO
IPC: A61P31/04
Filed: 1978-10-25
Abstract: NEW MATERIAL:DC-38-A (the compound of the formula) and DC-38-B having the following characteristics: Elemental analysis H 5.23%, C 65.69%; molecular weight, 494; molecular formula, C27H26O9; melting point, 254+ or -2 deg.C (decomposition); fluorescent spectrum (excitation light; 428nm), 494nm; specific rotation, [alpha]D<20>= -246+ or -10 deg. (c=0.5, dimethylsulfoxide). USE:Germicide, anti-tumor agent. PROCESS:The DC-38-A substance is prepared by culturing Streptomyces gilvotanareus 0-7 (FERM-P No.4649), at 25-40 deg.C, pref. 28-38 deg.C, and pH4-10, pref. 6-8, in a liquid medium, treating the cultured medium with a nonionic porous resin, etc. to adsorb the objective substance, and purifying the substance, the DC- 38-A can be converted to DC-38-B by heating in an aqueous acetone solution in the presence of dilute mineral acid.
Patent JP-H0678156-A (JP)
Title: Image encoder and image decoder
Inventor: ENDO TAKASHI
IPC: H04N1/41
Filed: 1991-06-03
Abstract: PURPOSE:To encode a sub-block consisting of plural picture element data while maintaining picture quality and a high data compression rate. CONSTITUTION:A gradient on the picture element data position of each sub- block is calculated and an edge or the like is judged by a judging circuit 56 based upon the calculated result. At the time of judging the existence of an edge, a quantizing table 64 for high picture quality is selected, and in a normal case, a quantizing table 62 is selected. As a reference, a quantizing circuit 58 quantizes a coefficient string obtained after executing the discrete cosine conversion of the selected table. Discrete cosine conversion is also used instead of gradient calculation.
Patent JP-2000333298-A (JP)
Title: Three-dimensional sound system with rear speaker for improving sound effect behind listener
Inventor: WEI CHII-SHIU
IPC: H04S5/02
Filed: 1999-05-12
Abstract: PROBLEM TO BE SOLVED: To make sound perceived by a listener to be similar to original sound sent to the listener from the position of an original sound source by supplying a three-dimensional sound system using four speakers for improving sound effect behind the listener. SOLUTION: A sound processor 40 is used for processing an original sound signal generated by an original source in a first position in accordance with a distance and a direction to the position of the listener from the first position and a heat-related transmission function(HRTF) for generating a three- dimensional sound signal. A sound distributor 42 is electrically connected among the sound processor 40, front speakers 32 and 34 and rear speakers 36 and 38. The sound distributor 42 is used for distributing the three-dimensional sound signal generated by the sound processor to the front speakers 32 and 34 and the rear speakers 36 and 38 in accordance with an angle between a direction from the listener to the first position and the front travel direction of the listener.  Thus, sound perceived by the listener is similar to original sound sent to the listener from the position of the original sound source.
Patent JP-S61290325-A (JP)
Title: Mass flowmeter
Inventor: YAMAMOTO HIROSHI
IPC: G01F1/84
Filed: 1985-06-17
Abstract: PURPOSE:To achieve a high reliability with a less torsional stress during the vibration, by arranging two bent pipes at an intermediate part of a main straight pipe set on the coaxial line as separated at an equal distance above and below the main straight pipe to shunt a fluid by an equal division for a larger substantial length of a conduit. CONSTITUTION:Bent pipes 3 and 4 of the same shape are arranged parallel in the sections defined by the shunt point 2 and a convergence point 21 at an equal distance from the axis line X0X0' and are each driven to rotate in the opposite phase about the first axis X1X1' and the third axis X2X2'. A driving means has a magnet, an exciting coil and the like arranged as opposed at points P and Q respectively on the second axis Y1Y1' and the fourth axis Y2Y2' and performs an electromagnetic driving to resonate to the natural frequency about the first axis X1X1' and the third axis X2X2'. At this point, a torsional vibration is generated in the straight pipes 31, 35, 41 and 45 and the mass flow rate is determined from the Coriolis' force working on the bent pipes 3 and 4. Thus, a larger substantial length of the arms of the bent pipes 3 and 4 applies a torsion to disperse the stress, thereby elevating the reliability.