baber/WOPTO huggingface dataset:
Patent JP-H02303669-A (JP)
Title: Suction casting method with shell mold
Inventor: UOSAKI YASUO
IPC: B22D18/06
Filed: 1989-05-19
Abstract: PURPOSE:To prevent the development of casting defect of underfill, etc., by pouring molten metal into cavity while concentratedly sucking the air and reducing the pressure through high ventilating range formed in a shell mold near the position where misrun is easily developed in the cavity. CONSTITUTION:By working a water sealing type vacuum pump 12 before pouring the molten metal, the air in a venting hole 3a is beforehand sucked. The air in the cavity 4 through a porous filter 17 and the air in a vessel 7 with ventilation in the shell mold 1 are sucked, respectively, and negative pressure condition in the vessel 7 and the cavity 4 is formed. At the time of starting pouring of the molten metal from a sprue cup 8, cellophane tape 9 for shutting off the inner part of the vessel 7 from the air is melted and lost, and the molten metal is caused to flow into the cavity 4. A pump 12 continues to work so that the molten metal equally runs at every corners in the cavity 4. By this method, a casting product without any casting defect can be manufactured.
Patent JP-H04352290-A (JP)
Title: Straight line drawing device
Inventor: TAKADA SHUICHI
IPC: G06T11/20
Filed: 1991-05-30
Abstract: PURPOSE:To provide the straight line drawing device which draws a straight line at a high speed. CONSTITUTION:A drawing point quantity determination variable register 43 outputs a negative or nonnegative value at a specific period and specific frequency, a drawing point quantity determination variable and drawing point quantity control part 47 outputs the quotient (n) of the integral division of the numbers of (x)-axial and (y)-axis drawing points or a value n+1 according to the output value, and a horizontal line drawing part 51 draws a horizontal line of the number (n) or (n+1) of drawing points in each (y) coordinate value. Then the horizontal line is drawn at a time up to the coordinate point where the (x) coordinate and (y) coordinate vary at the same time, so the straight line is drawn at a high speed.
Patent JP-S5554688-A (JP)
Title: Rotary pump
Inventor: KITAHAMA SADAO
IPC: F01C21/08
Filed: 1978-10-16
Abstract: PURPOSE: To improve machinability and durability of rotary pump in such a way that inner peripheral surface of pump cavity of casing and outer peripheral surface of rotor are both configured in true circle, and that the rotor is formed so as to come in contact with a region on inner peripheral surface of pump cavity along an elliptical orbit.  
     CONSTITUTION: Rotary pump 1 consists of casing 5 with pump cavity 2 of true circle section and rotor 8 of true circle section. The cavity 2 and rotor 8 have respective centers O and O' eccentric by ΔS, and the outer surface of rotor 8 is kept in contact with a region on inner surface of cavity 2 along an elliptical orbit. Since the outer surface of rotor 8 and the inner surface of cavity 2 are both configured in true circle, they can be easily machined, and easily indexed by eccentricity only in their assembling operation. Furthermore, as rotor 8 is kept in contact with a region of inner surface of cavity 8 along an elliptical orbit only, it is hardly weared, so that sealing feature and durability thereof can be remarkably improved. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S5352342-A (JP)
Title: Differential amplifier circuit
Inventor: HAMAMOTO SHIGEO
IPC: H03F3/45
Filed: 1976-10-22
Abstract: PURPOSE:To lower the noise level at low signal source resistance by decreasing the base extension resistance of the transistor at the feedback application side less than that of the transistor at the input side.
Patent JP-S5829946-A (JP)
Inventor: UEDA YASUKIYO
IPC: E03D9/12
Filed: 1981-08-13
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H08321102-A (JP)
Title: Tape cassette-loading mechanism of recording and/or reproducing apparatus
Inventor: TAGUCHI HIROBUMI
IPC: G11B15/675
Filed: 1995-05-26
Abstract: PURPOSE: To reduce the sliding resistance when guide shafts move in guide grooves, by engaging the guide shafts erected in a cassette holder with first and second guide grooves via independent rollers. CONSTITUTION: The slide plate 20R is a plate member parallel to a side plate 10R, having second guide grooves 21R, 22R formed at a vertical part thereof. Each of the second guide grooves 21R, 22R has a horizontal part 23R and an inclined part 24R. A third guide groove 25R is engaged with a shaft 26R to move the slide plate 20R horizontally to the side plate 10R. Guide shafts 9a, 9b are erected on the side face of a cassette holder 5 and the slide plate 20R is fitted to the right side plate 10R by the shaft 26R in a manner movable horizontally. Through two rollers 19R, 29R, the guide shafts 9a, 9b are passed respectively assembled in a first guide groove 11R and the second groove 22R to be rotatable within the grooves.
Patent JP-H09294292-A (JP)
Title: Radio exchange system
Inventor: UCHIUMI AKIHIRO
IPC: H04B1/692
Filed: 1996-04-24
Abstract: PROBLEM TO BE SOLVED: To prevent interference or the like between systems by using the spread spectrum radio system for the radio system and employing the low speed frequency hopping system for the spread system. SOLUTION: This system has a master set 101 that contains public channels 102 and includes an exchange function and a radio connection function, a plurality of radio exclusive telephone sets 103A,103B making communication of control data and voice data with the master set 101, and radio data terminals 104A-104G which make communication of control data with the master set 101 and make direct data communication between them. A connection device 105 controls the terminals 104A-104G under the control of the master set 101 to contain the telephone sets 103A, 103B and the terminals 104A-104G and sets up radio channels. Then the telephone sets 103A, 103B and the terminals 104A-104G are freely communicated among the respective sets and terminals and accessible to a public network.
Patent JP-H0422165-A (JP)
Title: Semiconductor device and manufacture there of
Inventor: FURUKAWA RYOTA
IPC: H01L29/73
Filed: 1990-05-17
Abstract: PURPOSE:To make a current-amplification factor and a frequency characteristic good and to easily control an effective base width by a method wherein a bipolar transistor is formed as a vertical structure in which a collector region and a base region on it have been formed of an epitaxial layer. CONSTITUTION:A pnp bipolar transistor TBP having a p-type collector region whose conductivity type is the same as that of a p-type semiconductor substrate 11 is used as a first bipolar transistor. When a p-type epitaxial layer 27 is formed just under an n<-> type epitaxial layer 12, the thickness of the layer 12 to be used as a base region 12 can be made thinner than other element formation regions. That is to say, since a base width can be narrowed, it is possible to realize the TBP whose base transport efficiency is high, whose current-amplification factor is large and whose frequency characteristic is good. Although the TBP is of vertical structure, the potential of a collector is different from the potential of an isolation diffusion layer. As a result, its application is not limited as different from that of substrate type. Since it is provided with a double epitaxial structure by the layer 27 and the layer 12, an effective base width can accurately and easily be controlled.
Patent JP-S63294180-A (JP)
Title: Short-circuit protecting circuit
Inventor: SUMI TAKESHI
IPC: H04N3/18
Filed: 1987-05-27
Abstract: PURPOSE:To completely eliminate the influence of an S-correction voltage caused by a shift of a DC voltage and to eliminate the malfunction of a short-circuit protecting circuit, by clamping one end of the S-correction voltage in a specific voltage. CONSTITUTION:The S-correction voltage Vs produced across both ends of an S-correction capacitor 6 is clamped by means of a capacitor 16 and diode 17 and the lower end voltage of the voltage Vs is fixed to a level which is almost equal to the level of an earth voltage and, furthermore, a voltage V's is applied across the terminal B of a NAND gate 15 through a diode 18. On the other hand, a flyback pulse Vp produced at the collector of a horizontal-output transistor 4 is sliced by means of a resistance 19 and constant-voltage diode 20 and a voltage V'p is applied across the terminal A of the NAND gate 15. At the time of normal operation, therefore, an AND output V'p*V's=G is fixed to a high level and the oscillation of a horizontal oscillation circuit 10 is not disturbed. Since a new back pulse is produced at part of a scanning period when a flyback transformer 9 is short-circuited, on the other hand, the AND output G of the part becomes low in level and the oscillation of the circuit 10 is stopped. Thus short-circuit protection is attained.
Patent JP-S63294191-A (JP)
Title: Speed-changeable reproducing system
Inventor: YAMAUCHI HIROTO
IPC: H04N5/937
Filed: 1987-05-27
Abstract: PURPOSE:To timely and certainly perform switching of readout from a memory when speed-changeable reproduction is made by utilizing a memory, by recognizing fixed address numbers. CONSTITUTION:Reproducing address signals added to image signals are set in such a way that, for example, a first address number of a field is set to '01' and the last address number is set to '11' when the field is inputted to a terminal 10. Then a reproducing address number B is inputted to an address discriminating circuit 20 and, when the inputted reproducing address number B coincides with a previously set number, for example, the first address number of a field, the address discriminating circuit 20 outputs a decision signal C. During the period from the memory to the time when the address discriminate signal C is outputted, reproduced data is written in a field memory and image signals of one field quantity are stored in the memory. Therefore, switching of the field memory can be performed certainly and accurately.
Patent JP-S5651163-A (JP)
Title: Image pickup tube protecting device of monitor system
Inventor: MATSUI YOSHIHIKO
IPC: H04N5/238
Filed: 1979-10-04
Abstract: PURPOSE:To make it possible to protect the image pickup tube of the television camera from the permanent printing phenomenon dependent upon an excessive incident light, by stopping down the stop of the television camera, which does not monitor, to a maximum. CONSTITUTION:In respect to the selected television camera, light emitting part 23 consisting of light emission diodes and so on in photocoupler 21 emits a light, and light receiving part 22 consisting of photodiodes and so on becomes conductive, and exposure adjustment dependent upon cds 1 is performed. In respect to the television camera which is not selected, light emitting part 23 does not emit a light and light receiving part 22 is held high-impedance because electric power is not supplied to photocoupler 21. Under this state, the base potential of transistor 5 rises up to the part near power source terminal 3 in the + side, and as the result, transistor 5 becomes conductive, and motor 9 is driven until automatic stop switch 10 is operated, and the stop of the television camera is stopped down to a maximum.
Patent JP-S5555635-A (JP)
Title: Remote monitor system for relay unit
Inventor: FUJII SHIYUNICHI
IPC: H04B17/40
Filed: 1978-10-18
Abstract: PURPOSE:To assign the monitor frequency so that the full intermediate relay unit in the relay system can be identified and monitored, including the relay unit in the intermediate relay station, by providing the sole monitoring oscillator in the intermediate relay station and providing the frequency conversion means at the intermediate point. CONSTITUTION:Frequencies f28-f30 among thirty types of monitor frequencies f1-f<30> are respectively assigned to the intermediate relay stations R28-R30, and frequencies f1-f20 are assigned to the intermediate relay stations R1-R20. The intermediate relay stations having the oscillator F are provided between the branch point X and the non-monitor station T3. The frequency converters Z1 and Z2 of non-monitor station T3 pass through the frequencies f1-f20 and convert the frequencies f28-f30 into f23-f21. As a result, since no signal component in frequencies f28-f30 is included in the monitor frequency group toward the branch point from the non-monitoring station T3, even if the same monitor frequencies f28- f30 are fed to the intermediate relay unit existing on the information delivery line toward the branch point X from the non-monitoring station T3, no inconvenience is caused and all the intermediate relay units in the system can economically be  made for remote monitor.
Patent JP-H06339102-A (JP)
Title: Aspect ratio discrimination device
Inventor: MITSUISHI HIROYA
IPC: H04N5/7826
Filed: 1993-05-31
Abstract: PURPOSE:To discriminate the aspect ratio of a recorded video signal with high precision by preventing mis-discrimination of 'L','S' pulses of a reproduced control signal. CONSTITUTION:A control signal reproduced by a control head 1 is waveform- shaped by a waveform shaping section 2 and inputted to a reproduced control signal detection section 31. A discrimination section 32 obtains a duty ratio based on a and fall of a pulse of a control signal detected by the reproduction control signal detection section 31 and compares the obtained duty ratio with one of two threshold levels to discriminate 'L','S' pulses indicating the kind of the input pulse. In this case, when the type of the pulse discriminated this time differs from that of the pulse discriminated precedingly, the discrimination section 32 uses the other threshold level to discriminate the type of the pulse inputted succeedingly. Thus, a threshold level not causing mis-discrimination is selected as the threshold level used to select the 'L','S' pulses indicating the control signal depicting usually the aspect ratio.
Patent JP-H07334763-A (JP)
Title: Flashover display unit mounting fixture
Inventor: WATANABE MINORU
IPC: G08B5/00
Filed: 1994-06-10
Abstract: PURPOSE:To provide a flashover display unit mounting fixture which decreases the number of types of flashover display units and saves labor and time to store and handle the flashover display unit. CONSTITUTION:The flashover display unit mounting fixture 15 consists of a clamp part 2 which is wound around a tower leg 16 while connected to a belt 14 and clamps the tower leg 16 and a fitting part 1 which projects crossing the direction of the flashover current flowing from the clamp part 2 to the tower leg 16 and engages the flashover display unit, and the latch 3 of the flashover display unit 20 is engaged with the fitting part 1 slidably in the projection direction of the fitting part 1.
Patent JP-H02309218-A (JP)
Title: Infrared detecting element and infrared detecting sensor employing the same
Inventor: KUBO TAKASHI
IPC: G01V8/12
Filed: 1989-05-24
Abstract: PURPOSE:To detect the movement of an object in any direction correctly at all times by connecting pyroelectric elements of each pair in series with the polarities thereof opposite to each other so that a line connecting said pyroelectric elements of one pair extends in a different direction from that of the other pair. CONSTITUTION:An infrared sensor 10 consists of a pyroelectric infrared element 12 mounted on a substrate 11 or the like, and lenses 13 provided in the substrate 11 in a manner to surround the element 12 from above. The detecting element 12 comprises a plurality of pairs of pyroelectric elements 12a-12d. The pyroelectric elements 12a-12d of each pair are connected in series with the polarities thereof opposite to each other, and at the same time, a line connecting the pyroelectric elements 12a-12d of each pair extends in a different direction. Accordingly, even when an object or the like moves in any arbitrary direction, the movement of the object or the like can be detected positively.
Patent JP-S62288122-A (JP)
Title: Production of glass body by sol-gel method
Inventor: MOTOKI MASANOBU
IPC: C03B19/12
Filed: 1986-06-03
Abstract: PURPOSE:To prevent occurrence of flawing in a drying step, etc., and obtain a glass body in good yield, by preparing a wet gel, providing a protective film on the surface with the wet gel, carrying out drying and sintering and removing the protective film in the course of sintering. CONSTITUTION:Ethyl silicate is blended with water, hydrochloric acid, fine powdery silica, etc., to carry out hydrolysis and produce a sol solution. Aqueous ammonia is then added to the sol solution and the resultant solution is put in a cylindrical rotating vessel and gelatinized while rotated to produce a tubular wet gel. Aqueous ammonia is added to a separate sol solution and the resultant solution is used to prepare a protective film on the surface of the tubular wet gel. The resultant protective film is then dried to give a dry gel, which is then sintered and taken out in the course of sintering to peel the protective film with tweezers, etc. Sintering is then completed to afford the aimed glass tube without flows on the inner surface thereof.
Patent JP-H05326293-A (JP)
Title: Gas insulated transformer
Inventor: HANAI MASAHIRO
IPC: H01F27/08
Filed: 1992-05-21
Abstract: PURPOSE:To obtain a small size gas insulated transformer having high reliability by improving the cooling characteristic of a coil where a cooling duct is formed within a winding. CONSTITUTION:In a gas insulated transformer accommodating a transformer with a coil winding having a cooling duct within the winding around an iron core into a transformer tank together with an insulation gas and cooling the coil by flowing the insulation gas cooled by a gas cooling device into the cooling duct 11 within the winding, a gas flow guide 14 having the cross-section in the shape of streamliner or ellipse or polygon near ellipse is attached to the end portion of the coil 9.
Patent JP-H10319211-A (JP)
Title: Antireflection film and image display device using the same
Inventor: NAKAMURA KAZUHIRO
IPC: G02B1/14
Filed: 1997-05-19
Abstract: PROBLEM TO BE SOLVED: To easily produce an antireflection film having a high antireflection effect and superior scratch resistance by using a low refractive index layer composed of fluorine-contg. polymer particles and a polymerizable monomer and/or a polymerizable oligomer and/or a polymerizable polymer. SOLUTION: This antireflection film contains a low refractive index layer 1 obtd. by piling up two or more fine particles 2 of a fluorine-contg. polymer (fluororesin) having 5-200 nm average particle diameter on a substrate 11 and forming microvoids among the fine particles. The low refractive index layer 1 is composed of the fluorine-contg. polymer particles 2 and a polymerizable monomer and/or a polymerizable oligomer and/or a polymerizable polymer. The layer 1 is preferably used in combination with a high refractive index layer 4 formed on the substrate 11.
Patent JP-S5919244-A (JP)
Title: Focus servo device of information reader
Inventor: NAITOU RIYUUICHI
IPC: G05D3/12
Filed: 1982-07-24
Abstract: PURPOSE:To eliminate actually the generation of a focus error (DC component) due to the variance of optical distance between the disk reflecting surface and a pickup which is generated by the variance, etc. of thickness and reflective index of a recording disk, by using a delay compensating circuit having the DC gain set infinite. CONSTITUTION:A delay phase compensating circuit 9 is provided between an advance phase compensating circuit 2 and a driver circuit 3 as shown in the diagram. In other words, an operational amplifier OP1 having the DC gain set infinite logically is used as an inverse amplifier. The input of the circuit 9 can be set approximately at zero since the DC gain of the circuit 9 is set infinite. Therefore, the output of a focus error signal generator 1 is also set approximately at zero. That is, a shift degree can be compensated after eliminating actually the generation of the focus error signal.
Patent JP-S63292546-A (JP)
Title: Remote controlled breaker
Inventor: MORI TAMOTSU
IPC: H01H71/68
Filed: 1987-05-26
Abstract: PURPOSE:To have easy and quick response to change in the capacity of a contact mechanism or alteration of the specifications of an electric magnet part, which is to drive the contact mechanism, by providing separability for the electric magnet from the contact mechanism through a coupling. CONSTITUTION:A through hole 69 penetrating the oversurface and undersurface of a body 23 is bored in the bulkhead 24 of the body 23, and a coupling pin 18 as a coupling member is inserted in this through hole 69. Coupling of electric magnet block A with contact making/braking mechanism B is performed in such a procedure that one end 18a of the coupling pin 18 is inserted in a hole 15a in a convertive shaft 11, while the other end 18b in a hole 47a in the arm 47 of a link 45, and the coupling pin 18 couples this convertive shaft 11 with the link 45. By this constitution, the motion of the electric magnet 3 in transverse direction is converted into motion in the longitudinal direction by the coupling pin 18, and the motion of electric magnet 3 is transmitted to the link 45. Accordingly the mounting base 1 on which the electric magnet 3 is arranged can be installed to the housing in which the contact mechanism in such a way as free to mount and dismantle. This enables quick and easy change in the capacity of the contact mechanism or alteration of the specifications of the electric magnet.
Patent JP-H10292202-A (JP)
Title: Simple loincloth wearable and removable by one touch
Inventor: SUZUKI NAOYA
IPC: A41B9/02
Filed: 1997-04-10
Abstract: PROBLEM TO BE SOLVED: To obtain the subject loincloth effective for protecting the public region and convenient for the hygiene and selective drying of crotch by combining a belly belt with a front bag in a specific state and fixing with a fixing tool. SOLUTION: A belly belt 1 is combined with a front bag 2 in a state shown by the figure and fixed with a fixing tool 3. The belly belt 1 is preferably closed at a point on the back of the body and curved to fit the curvature of the belly part. The front bag 2 preferably has a ring shape made of a woven cloth having a width of about 1 ft (the right and left sides are selvedges) and the specification of the fixing tool 3 is 110-128 cm long with 2 cm pitch. The fixing tool 3 is preferably soft to the body and produced by covering a metal with a rubber or a synthetic resin. A small round patch is preferably applied to the front bag 2 at the part contacting with the anus.
Patent JP-H0426659-A (JP)
Title: Fluorine-containing n,n,n',n'-tetraarylbenzidine derivative and production thereof
Inventor: NODA YOSHIAKI
IPC: C07C211/56
Filed: 1990-05-21
Abstract: NEW MATERIAL:A compound expressed by formula I (R1 is 1-3C alkyl, fluorinated alkyl or alkoxy; R2 is H, R1 or fluorinated alkoxy, provided that at least either one of R1 and R2 is 1-3C fluorinated alkyl or fluorinated alkoxy). EXAMPLE:3,3'-Dimethyl-N,N,N',N'-tetrakis(3-trifluoromethylphenyl)[1,1'- biphenyl]-4,4'-diamine. USE:A light-conducting organic material. PREPARATION:A benzidine derivative expressed by formula II is reacted with a halogenated benzene derivative expressed by formula III (X is I or Br), as necessary in a solvent such as nitrobenzene in the presence of a copper based catalyst such as copper powder and basic compound such as K4CO3 at 120-28O deg.C, preferably 150-250 deg.C for 2-48 hr to provide the compound expressed by formula I.