baber/WOPTO huggingface dataset:
Patent JP-H04193086-A (JP)
Title: Motor controller
Inventor: KISHIDA NORITAKA
IPC: H02P29/20
Filed: 1990-11-26
Abstract: PURPOSE:To perform stable motor control by setting the rotational speed of a motor to the narrow speed range including the stable speed range when it is separate greatly from the stable speed, and changing the speed range over to the one wider than the narrow speed range when it reaches the narrow speed range. CONSTITUTION:Since the value f1, with which the speed range to operate the phase control system becomes relatively narrow, is given to the parameter fA, it judges that to be not f0-f1<f<f0+f1 at the start of the motor, etc., such as a C part. And a flag A is made 0 and f1 is given to fA. Then, each time a CTL signal is input, it outputs a fixed phase value P0 as a PWM signal. When the rotational speed f of the motor reaches the vicinity of the stable speed f0 and it judges that f0-f1<f<f0+f1, the flag A is made 1, and fA is changed into f2 larger than f1. Then, each time CTL signal is input within the range of f0-f2<f<f0+f2, the phase P calculated from the input time of the CTL signal is output from the PWM output circuit.
Patent JP-H02110910-A (JP)
Title: Stationary induction electric apparatus
Inventor: ENDO KAORU
IPC: H01F27/18
Filed: 1987-12-23
Abstract: PURPOSE:To obtain a small-sized and lightweight stationary induction electric apparatus by a method wherein mixed gas consisting of nitrogen gas and insulating gas is introduced into a tank, the bubblegenerating temperature of a perfluorocarbon solution is raised, the amount of generation of bubbles and the size of the bubbles are made small, and the lowering of the breaking strength of the perfluorocarbon solution is prevented. CONSTITUTION:In an insulating gas filled tank 1 containing a top-opened insulation container 2 in which an iron core 3 and a winding 4 wound around the leg of the iron core are housed and a liquid refrigerant is filled up, mixed gas consisting of nitrogen gas and insulating gas is introduced. For example, a perfluorocarbon solution is used as the above-mentioned liquid refrigerant 5, and the above-mentioned mixed gas is composed of 20% SF6 gas and 80% nitrogen gas. Besides, a heat exchanger 7 and a circulation pump 8 are arranged outside the airtight tank 1, and a liquid circulating system is composed of lead- out tubes 9 and 10. Consequently, as the lowering of the pressure of the surface of the perfuorocarbon solution can be prevented, the pressure in the bubbles generated from the solution does not drop, and the lowering of breaking strength of the solution can also be prevented.
Patent JP-H09159952-A (JP)
Title: Semiconductor laser scanning device
Inventor: ISHIKAWA HIROMI
IPC: H01S5/06
Filed: 1995-12-13
Abstract: PROBLEM TO BE SOLVED: To hold the quantity of a laser beam outputted from a semiconductor laser constant without destroying the semiconductor laser even if the semiconductor laser deteriorates with time. SOLUTION: The quantities of laser beams when semiconductor lasers LD1-LD4 are started up are detected by an external detector PD5 and internal detectors PD1-PD4 and the detection results are stored in a memory 11. During operation LD driving circuits 15A-15D drives the semiconductor lasers LD1-LD4 so that the laser beams are outputted by the quantities of light in starting up. Consequently, even if the semiconductor lasers LD1-LD4 deteriorate with time, the quantities of light of the semiconductor lasers LD1-LD4 are controlled on the basis of the detected values at the start-up time, so the semiconductor lasers LD1-LD4 are never destroyed by generating excessive output.
Patent JP-H11163457-A (JP)
Title: Method of manufacturing diffraction grating for semiconductor laser
Inventor: TADA HITOSHI
IPC: H01S5/00
Filed: 1997-11-26
Abstract: PROBLEM TO BE SOLVED: To provide a method for forming a diffraction grating of different depth by a method which is superior in mass production. SOLUTION: On an optical guide layer 6, a mask pattern comprising a region of large mask area and that of small mask area is formed, and the optical guide layer 6 is dry-etched via the mask pattern in a mixed gas containing methane and hydrogen. Thus, by merely changing the pattern shape of a etching mask, a diffraction grating of different depth is formed at an arbitrary place with a single etching process for mask production of semiconductor laser. Since dry etching is performed in the mixed gas containing methane and hydrogen, the under cut amount is suppressed even at a higher etching rate which is similar to a conventional case.
Patent JP-H09162855-A (JP)
Title: Serial data reception system
Inventor: HASEBE IKUO
IPC: H04L13/18
Filed: 1995-12-13
Abstract: PROBLEM TO BE SOLVED: To extremely reduce the loss of returned data at the time of erroneously detecting a frame synchronous pattern by always examining frame synchronization, storing subsequent reception data in plural buffers whenever data passes an examination and selecting a data main body from data and receiving it. SOLUTION: A circuit for receiving serial data constituted by a frame synchronous pattern which is added to the head and the data main body of the prescribed number of succeeding bits is provided with a frame synchronism examination means 1 which always examines the frame synchronous pattern and more than two data storage means 2 storing data on the number of bits, which corresponds to the data main body after the frame synchronism pattern that passes the examination, as the data main body. The data main body is received by selecting it from data stored in the respective data storage means 2. Frame synchronism is examined during the processing of reception data stored in the buffers.
Patent JP-H03185912-A (JP)
Title: Pulse generator
Inventor: NOJIMA KENICHI
IPC: H03K3/53
Filed: 1989-12-14
Abstract: PURPOSE:To generate a rectangular wave with a wide pulse width even when a guide length in matching with a high impedance load is not prolonged by arranging a multiple spiral line inside of a cylindrical conductor as a bloom line. CONSTITUTION:An intermediate conductor 12 charged by a charge power supply 17 connects to ground by closing a switch 18. As a result, a step wave having the rise depending on the characteristic of the switch 18 propagates through a distributed constant line comprising center conductors 11, 12. When the step wave reaches the output terminal of the bloom line (comprising spiral conductors 11, 12 and a cylinder 13), a step voltage is applied to a load 15. The step wave is branched at the output terminal, propagates again at the input terminal, returns, is reflected again and reaches the output terminal, then the rising voltage applied to the load 15 is 0V. As a result, a rectangular wave having a pulse width equivalent to the reciprocating time along the spiral path of the spiral center conductor and of the intermediate conductor 12 is applied to the load 15.
Patent JP-H0670280-A (JP)
Title: Recording medium including recorded video signal
Inventor: NISHIMURA KEIZO
IPC: G11B5/027
Filed: 1992-12-04
Abstract: PURPOSE:To prevent the deterioration of the quality of the reproduced picture elements even if a single head has the clogging by dividing the video signals into N blocks, recording successively on the tracks in the unit of each block, and arranging in the order different from the order of line numbers. CONSTITUTION:When the video signals of 525 lines per frame are recorded and reproduced, the signals of one field are recorded on four tracks and the recorded and reproduced by four heads A-D. If the head B has the clogging, the tracks 2 and 6 become unreproducible. Under such conditions, the line 7-259 become unreproducible in a N-th field and the lines 269-521 become unreprodicible in a (N+1)th field. These lines are discrete from each other. Viewed at every field, one of four lines becomes an unreproducible noise signal. Thus an unreproducible line is replaced with the average value before the unreproducible line or the average value between the signals before and after the unreproducible line by employing the line correlation characteristic of the image signals and therefore corrected. Thus the occurrence of noises can be suppressed on a screen.
Patent JP-H08180514-A (JP)
Title: Apparatus for driving tape
Inventor: NOGUCHI NAOTO
IPC: G11B15/28
Filed: 1994-12-27
Abstract: PURPOSE: To secure the driving force for a magnetic tape by a low pressing force thereby to save power in a tape-driving apparatus driving magnetic tape by a capstan shaft and a pinch roller. CONSTITUTION: A magnetic tape 3 is pressed to and held in touch with a capstan shaft 1 by a pinch roller 2. A coating agent 5 for the prevention of slipping is applied to an outer peripheral surface of the capstan shaft 1 to which the magnetic tape 3 is pressed. Moreover, a groove part 4 is formed on the outer peripheral surface of the capstan shaft, to which and the groove port 4 is filled with the coating agent 5. Accordingly, a friction coefficient of the capstan shaft 1 and magnetic tape 3 is increased making it possible to reduce the pressing force of the pinch roller 2. The rotational load or rotational irregularity of the capstan shaft can be decreased.
Patent JP-H03187410-A (JP)
Title: Underdrainage pipe and manufacture thereof
Inventor: NAGAYOSHI AKIO
IPC: E02B11/00
Filed: 1989-12-14
Abstract: PURPOSE:To smoothly collect the water permeating into the ground in the inside of a pipe by separating the spiral ridge part or the spiral bottom part by a small space part along the entire length, and in the small space part, by forming a large number of water-passing small holes communicated with the inside of the pipe. CONSTITUTION:The spiral ridge part 2 or the spiral bottom part 3 of a synthetic resin spiral pipe body 1 is separated by a give small space part 4 in the spriral direction along the entire length. And in the small space part 4, a connecting piece 5 whose both end parts are fixed to the opposite end parts of the separated ridge parts 2a, 2b or the separated bottom parts 3a, 3b is provided in the spiral direction for each small space part, and a large number of small water- passing holes 6 communicated with the inside of the pipe are formed in the small space parts 4. When the underdrainage pipe is embedded in the ground, a large pressure-resisting strength can be obtained by the spiral ridge parts 2 projected on the outer circumference, and also the water permeating into the ground through a large number of water-passing holes 6 can be efficiently collected in the inside of the pipe.
Patent JP-2001141101-A (JP)
Title: Solenoid valve unit
Inventor: HIRAISHI KAZUO
IPC: F16K31/06
Filed: 1999-11-16
Abstract: PROBLEM TO BE SOLVED: To provide a solenoid valve unit capable of having a compact constitution and eliminating the necessity of replacing the unit as a whole even when a control circuit has failed. SOLUTION: This solenoid valve unit consists of a valve body having a inflow and outflow ports, a solenoid valve which is attached to the valve body and controls the state of a fluid from the inflow port to the outflow port, and a control circuit which is included in a case and drives the solenoid valve. The case is detachably connected to the valve body and the whole size of the solenoid valve is compactly constituted.
Patent JP-H01166914-A (JP)
Title: Synthetic resin molding die
Inventor: TANAKA JUNJI
IPC: B29C33/60
Filed: 1987-12-24
Abstract: PURPOSE:To facilitate the releasing of a synthetic resin molded item from a molding die and obtain the synthetic resin molded item, which is excellent in mirror-smoothness without clouding or the like by a method wherein a thin barium fluoride film is formed on the molding surface of the molding die by sputtering. CONSTITUTION:A thin barium fluoride (BaF2) film is formed on the molding surface of a synthetic resin molding die. Since barium fluoride (BaF2) has a surface energy, which is lower than that of other fluoride such as calcium fluoride (CaF2) or the like, it has excellent releasability. Further, since barium fluoride has low internal stress, crack is hard to develop in it, resulting in increasing the frequency in use of the molding die. The proper thickness of the thin barium fluoride film depends on the quality of material and use application of molded item and is normally 500-3,000Angstrom  and preferably 1,000-1,500Angstrom . If the film thickness is 500Angstrom  or less, the usable frequency of the molding die is small. If the film thickness is 3,000Angstrom  or more, crank tends to develop in a thin film layer due to the internal stress of barium fluoride.
Patent JP-H09166436-A (JP)
Title: Laser machine for marking, using photodetector combinedly and marking method using the machine
Inventor: SUZUKI KUNIO
IPC: B25H7/04
Filed: 1995-12-14
Abstract: PROBLEM TO BE SOLVED: To obtain a laser machine by which every wall surface such as a floor, a wall or a ceiling which is so much distant can be irradiated preceisly with a laser beam by a method wherein a rotating base is adjusted fine and the laser beam is aligned with a reference vertical line at a reflection part. SOLUTION: In a leveling device A, a laser irradiation device 3 with which a floor face, a wall surface and a ceiling face are irradiated simultaneously is installed on a rotating base 2 which is freely turned horizontally and which is moved fine to the right and the left. A photodetector B in which a reflection part 5 used as a reference vertical line 4 is installed is used jointly with the leveling device A, and a marking operation is performed. That is to say, an initial makr (a) is used as a reference, return marks b1 , b2 are put at a prescribed interval, and the leveling device A and the photocletector B are opposedly installed so as to be aligned with the marks.  Then, a laser beam which is radiated from the irradiation device 3 is aligned with the vertical line 4 at the reflection part 5 while the rotating base 2 is adjusted and turned fine, and the floor face, opposite wall surfaces and the ceiling face are irradiated simultaneously with the laser beam. Thereby, the wall surfaces which are so much distant can be irradiated preciesly with the laser beam, and marking- position indication marks 10 can be marked by the photodetector B in prescribed positions in laser beam trace parts C1 , C2 , C3 .
Patent JP-H11217032-A (JP)
Title: Contact device for electronic component arranged at removable vehicle seat
Inventor: FRITZ KARL-HEINZ
IPC: B60N2/00
Filed: 1998-10-13
Abstract: PROBLEM TO BE SOLVED: To prevent unexpected impairment of insertion connector devices when a seat is removed. SOLUTION: A contact device for an electronic component, e.g. a sensor for a seat occupant or a latch-unlatch device for a belt buckle is arranged at a vehicle seat being mechanically releasable and removable from an anchoring portion at a vehicle body side by a seat unlock device. For the purpose of an unimpaired disengagement at a removal of the seat, the seat becomes unlockable only after insertion connector devices 3, 5 have been separated by a hand of an operator in the case of unlocking the seat. The electric insertion connector devices 3, 5 are automatically engaged or disengaged by a relative movement of the seat with regard to the vehicle body when the seat is attached or removed.
Patent JP-2001145021-A (JP)
Title: Image processing method and image processor
Inventor: TAKEMOTO MASAAKI
IPC: H04N19/625
Filed: 1999-11-16
Abstract: PROBLEM TO BE SOLVED: To make an image processor (1), which can generate a compressed wipe image (28) from a 1st compressed image (18) and a 2nd compressed image (19) compressed by using a discrete cosine transform(DCT), improved in processing speed, small in size and low in cost. SOLUTION: A memory stores in advance a threshold value (22) and a wipe pattern (17) having a block (21) corresponding one to one to DCT blocks (24), (25) of the 1st and 2nd compensation images (18), (19). A value fixedly recorded to each block (21) of the wipe pattern (17) is compared with the threshold value (22), when the threshold value (22) is greater than the wipe pattern (17), the DCT block (25) of the corresponding 2nd compressed image is copied to a prescribed memory and when the threshold value (22) is smaller than the wipe pattern (17), the DCT block (24) of the 1st compressed image is copied to the prescribed memory. The copied DCT block (26) is connected to obtain a compressed wipe image (28).
Patent JP-H10161286-A (JP)
Title: Multicolor photographic element
Inventor: LING HANS GWAY
IPC: G03C7/30
Filed: 1997-11-27
Abstract: PROBLEM TO BE SOLVED: To increase blue speed and to improve the preservability of a raw film and that of a latent image by incorporating specified reductone and specifying the size distribution of all silver halide particles in a high sensitivity blue- sensitive layer. SOLUTION: This multicolor photographic element contains a compd. represented by the formula and a silver halide emulsion layer having the highest sensitivity to blue light contains silver halide particles each having <0.2μm size as the diameter of an equivalent circle by 3-20wt.% of all silver halide particles in the emulsion layer. In the formula, each of R1 and R2 is H, alkyl or aryl, R1 and R5 may bond to each other to form a ring, R3 is H, alkyl, aryl or acyl, each of R4 and R5 is H, OH, alkyl or aryl and (n) is 1 or 2. Reductone represented by the formula may be incorporated into any layer of an element. This water-soluble material diffuses during the production of a film.
Patent JP-2000135723-A (JP)
Title: Resin barrel
Inventor: SASAKI TSUKASA
IPC: B29D23/00
Filed: 1998-10-30
Abstract: PROBLEM TO BE SOLVED: To manufacture a small barrel through an easy molding process requiring no extra working strain by making the surface roughness of the inner face of the barrel heavier than the surface roughness of the outer face. SOLUTION: The surface roughness of the inner face of a lead holding member 12 of a mechanical pencil as a barrel is made heavier than the surface roughness of the outer face. Consequently the roughness of the surface of a lead coincides with the surface roughness of the inner face of the lead holding member, so that their mutual roughness works to fit projecting parts into recessed parts and thereby a lead is prevented more effectively from rotating with the lead holding member 12. In addition, during molding the lead holding member 12, a fine indented pattern which configuratively matches the fine projecting and recessed parts formed on the inner face of the lead holding member 12, is formed on the surface of a core pin 19 for which a through hole is formed in the lead holding member 12. Further the inner face of a cavity 18 where the outer face of the lead holding member 12 is formed is smoothed. Therefore, the molded product (the lead holding member 12) is easily released from the core pin 19 on account of the fine indented pattern of the core pin 19 and the action of the member 12 to stick to the cavity 18.
Patent JP-H05162050-A (JP)
Title: Pattern position detector
Inventor: SASAI HIROYUKI
IPC: G01B11/00
Filed: 1991-12-10
Abstract: PURPOSE:To detect a pattern with high accuracy by providing a third brightness information calculating means which compares first brightness information with second brightness information to obtain as the third brightness information the information converted to zero or sufficiently small value from the brightness in a region having the brightness smaller than the second brightness information among the first brightness information. CONSTITUTION:First brightness information obtained from an image signal is compared with second brightness information obtained from a specified region having no pattern. A brightness value in a region having the brightness smaller than the second brightness information among the first brightness information is converted to zero or sufficiently small value to provide third brightness information. The center of gravity of a pattern is obtained by a center-of-gravity calculating means 22 on the basis of the third brightness information, so that the pattern detecting position can be prevented from deviation caused by the background brightness outside the pattern.
Patent JP-H02171960-A (JP)
Title: Image control device for electronic computer
Inventor: SATO OSAMU
IPC: G06Q40/00
Filed: 1988-12-26
Abstract: PURPOSE:To effectively utilize a key on a keyboard and to obtain a money terminal equipment to be easily operated by changing the meaning of a PF key in each job. CONSTITUTION:The combination of a reference processing screen number 1d and the 1st key 1a and respective processing screen numbers corresponding to the combination are stored in a memory circuit 5 as a table, and when the reference processing screen is displayed, the 1st key 1a is depressed, and when the 1st key 1a and the screen number of the displayed reference processing screen are stored, the corresponding screen number is found out and the processing screen corresponding to the number is displayed. Consequently, plural kinds of processing screens can be obtained without increasing the 1st key and keys on the keyboard 1 at the time of displaying the reference processing screen with easy operation.
Patent JP-H07163006-A (JP)
Title: Electrifying system of nonelectrified railroad having small-height and narrow section in railroad track
Inventor: WAKAO KANJI
IPC: B60L5/39
Filed: 1993-12-01
Abstract: PURPOSE:To enable execution of electrification with a small-height and narrow section left as it is without reconstructing the narrow section and to attain economical electrification work on the occasion of electrifying a railroad district having the small-height and narrow section in a railroad track. CONSTITUTION:An electrifying system having a constitution wherein a contact wire 2 in the upper part of a small-height and narrow section is made to be non-voltage or insulated material, collection of a current from a pantograph is disused and the current is collected in this section from a rail 4 for the collection of the current provided on the ground by a collector 5 provided in the lower part of a vehicle.
Patent JP-2000145181-A (JP)
Title: Installation structure of bathroom unit
Inventor: TAKIGAWA MITSUNORI
IPC: E04B1/18
Filed: 1998-11-17
Abstract: PROBLEM TO BE SOLVED: To provide the installation structure of a bathroom unit, in which the mounting surface of the bathroom unit installed on the upper floor of a building lower than the floor face of the upper floor easily. SOLUTION: In the installation structure of the bathroom unit 1, in which the bathroom unit 1 is mounted on the upper floor of a building constructed in upper and lower floors, a plurality of frame beam materials 7 are stretched between the opposed sections of horizontal structural materials 4 connecting wall panels 2, 3 on the upper and lower floors through metal fittings 6 under the state, in which the top faces of the frame beam materials 7 are lowered to sections lower than an adjacent upper-floor floor face 9, and the bathroom unit 1 can be set up onto the frame beam materials 7.