baber/WOPTO huggingface dataset:
Patent JP-H06204234-A (JP)
Title: Evaluating method and device of bipolar transistor
Inventor: SHIMAWAKI HIDENORI
IPC: H01L21/66
Filed: 1992-09-14
Abstract: PURPOSE:To provide an evaluating method and device of individual recombration current component and intrinsic current component rapidly, easily with high precision in individual element in order to evaluate the DC characteristics in bipolar transistor. CONSTITUTION:The dependence on the voltage between the base and the emitter of the collector current IC and the base current IB is measured to compute the dependence of the DC current amplification factor hFE on the collector current density Tc. Next, based on the computed value, the relation between the derivative of-1/hFE with respect to Jc and Jc is displayed in the log-loy diagram to determine the value of alpha from the gradient (alpha-2) obtained by linear approximation of a specific Jc region. Next, the relation between 1/hFE and the (alpha-1)th power of Jc is displayed using the value of alpha than determined. Then, the intrnsic current amplification factor may be computed from the intercept on Y axis i.e., the first term not depending upon Jc while the coefficient relating to the magnitude of the recombination may be computed from the gradient of the line, i.e., the second term depending upon Jc by linear apporoximation of the Jc region.
Patent JP-S60136972-A (JP)
Title: Magnetic disc device
Inventor: HIBINO YOUZOU
IPC: G11B21/10
Filed: 1983-12-26
Abstract: PURPOSE:To shorten the access time and to improve the tracking accuracy of following by providing additionally an acceleration sensor to a magnetic head of a magnetic disc device and using a detection signal as one of feedback signals of an access control circuit. CONSTITUTION:A position control loop consists of a position signal generating circuit 17, a position control feedback circuit 24, a power amplifier 23, a voice coil motor 2, a carriage of the access device 4, and a slider 9 provided with the magnetic head 3. A detection signal from the acceleration sensor 11 is amplified or filtered by an acceleration generating circuit 19 and fed to a position control feedback circuit 24. The position control feedback circuit 24 uses a speed signal and a position signal in addition to the acceleration signal to generate a position feedback signal. The position control feedback circuit 24 improve the tracking accuracy to a track while suppressing the actual vibrating state of the magnetic head based thereupon.
Patent JP-H0649294-A (JP)
Title: Thermoplastic polyester composition
Inventor: INOUE TOSHIO
IPC: C08L67/02
Filed: 1992-07-30
Abstract: PURPOSE:To provide the composition comprising a thermoplastic polyester, crystalline polypropylene, a crystalline polyamide, and a hydrogenated styrene- butadiene copolymer, having good injection moldability, and giving molded products such as industrial parts having high strengths and light weights. CONSTITUTION:The thermoplastic polyester composition comprises (A) 70-90 pts.wt. of a thermoplastic polyester, (B) 30-10 pts.wt. of crystalline polypropylene (the total amount of the components A and B is 100 pts. wt.), (C) 20-200 pts.wt. (per 100 pts.wt. of the component B) of a crystalline polyamide, and (D) 20-100 pts.wt. (per 100 pts.wt. of the component B) of a composition comprising (i) 30-70 pts.wt. of hydrogenated styrene-butadiene copolymer and (ii) 70-30 pts.wt. of a hydroxyl group-containing hydrogenated styrene-butadiene copolymer (the total amount of the components (i) and (ii) is 100 pts.wt.), and has a single peak measured by a temperature-lowering DSC, the single peak being the joined product of a peak assigned to the crystalline polypropylene of the component B to a peak assigned to the crystalline polyamide of the component C.
Patent JP-S6395902-A (JP)
Inventor: TAGAWA KIYOMI
IPC: B27K3/15
Filed: 1986-10-13
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-H0992669-A (JP)
Title: Method for manufacturing resin sealed semiconductor element and semiconductor element resin sealing mold die
Inventor: YAMADA SHIGEKI
IPC: H01L21/56
Filed: 1995-09-22
Abstract: PROBLEM TO BE SOLVED: To reduce generation of resin cracks of a semiconductor element by facilitating a separation between a mold die and sealing resin, and reduce the maintenance work amount of the molding die which is performed periodically. SOLUTION: A lead frame 1 to which a semiconductor chip 2 is mounted is put in a cavity 14 of a molding die 6, and sealing resin 7 is solidified to make a resin sealed semiconductor element. A lower die 5 of a molding die 6 is divided into three of a fixed block 5a comprising a bottom face 10 of a runner, a forced block 5b comprising a bottom face 9 of a cavity and an end part block 5c comprising the side face 17 of a lower-half cavity. When a semiconductor element 13 is resin-sealed, these blocks 5a to 5c are reassembled to be used. Out of the divided blocks 5a to 5c, the forced block 5b comprising the bottom face 9 of the cavity is pushed in, and at the same time the end part block 5c comprising the side face 17 of the cavity adjacent to the forced block 5b is shifted outward of the side face 17 of the cavity to accelerate separation.
Patent JP-S6484799-A (JP)
Title: Shielding cover of electronic apparatus
Inventor: KANBA MISAO
IPC: H05K9/00
Filed: 1987-09-28
Abstract: PURPOSE:To prevent an electrical signal from leaking to the outside by a method wherein a material where an insulating material layer is formed collectively on one face of a metal sheet is used as a shielding cover and the insulating material layer is used as an inner face. CONSTITUTION:An open face of a frame body 11 is covered with a shielding cover 15; this shielding cover 15 is formed in such a way that a material where an insulating material layer 17 is formed collectively on one face of a metal sheet 16 is used and that the insulating material layer 17 is used as an inner face. Thanks to the insulating material layer 17, a mounted electronic component 13 and a solder 14 are prevented from coming into contact with the metal sheet 16 ot the shielding cover 15, and they are insulated electrically from one another; an operation to attach an insulating sheet separately or the like is not required. When a hole is to be made in the shielding cover 15, a through hole 18 protruding outward is made; as a result, the insulating layer 17 is formed also on an inner face of said through hole 18; accordingly, when a pin 19 used to send an electrical signal to said through hole 18 from the outside of the shielding cover 15, the pin 19 does not come into contact with the metal sheet 16 of the shielding cover 15 thanks to said insulating layer 17 and is insulated.
Patent JP-S6398957-A (JP)
Title: Silver oxide battery
Inventor: ITAMI ATSUSHI
IPC: H01M4/54
Filed: 1986-10-15
Abstract: PURPOSE:To obtain a high capacity silver oxide battery in which steady closed circuit voltage continues from the initial stage to the final stage by forming a positive electrode with a mixture of granular silver oxide whose surface is reduced and manganese dioxide particle coated with silver. CONSTITUTION:A positive electrode is formed with a mixture of granular silver oxide whose surface is reduced and manganese dioxide particle coated with silver. Since manganese dioxide particle is coated with silver, the network of silver is not broken even when it is mixed to silver oxide, and high conductivity is retained, and decrease in closed circuit voltage in the initial stage of discharge can be prevented. The optimum content of silver required for coating manganese dioxide is 1-5 wt.% of manganese dioxide. The mixing ratio of the silver coated manganese dioxide to the surface-reduced silver oxide is preferable to limit to 1-5 wt.% of the positive electrode.
Patent JP-H0291767-A (JP)
Title: Operation processor
Inventor: ISHIKAWA TEI
IPC: G06F17/30
Filed: 1988-09-29
Abstract: PURPOSE:To detect at a high speed the data detected from data to be investigated by constituting the title processor so that the comparison of the data to be investigated such as text data, etc., and reference data for showing the data to be detected such as a delimited character, etc., can be executed by setting (n) times width of length of the data to be detected, as a unit. CONSTITUTION:Reference data inputted to a first input A is inputted in common to each input of one of two pieces of comparators 30-0 to 30-3, and also, each partial data obtained by dividing equally data inputted to a second input B into (n) parts in accordance with (n) pieces of comparators 30-0 to 30-3 is inputted to the other input of the corresponding comparators, respectively and the comparing operation is executed in parallel by (n) pieces of comparators 30-0 to 30-3. Subsequently, based on a result of each comparison of the (n) pieces of comparators 30-0 - 30-3, whether data to be detected is contained in data to be investigated or not is detected and when it is contained, its contained position is detected. In such a way, the data to be investigated and reference data for showing the data to be detected can be compared by setting (n) times width of length of the data to be detected, as a unit, therefore, the time required for comparing the whole data to be investigated can be decreased to about 1/n of a conventional time.
Patent JP-H07107510-A (JP)
Title: Motion adaptive brightness signal/chrominance signal separating filter
Inventor: MORIKAWA YASUHIRO
IPC: H04N9/78
Filed: 1993-09-30
Abstract: PURPOSE:To simultaneously display pictures generated by in-field YC separation processing and motion adaptive YC separation processing by providing a switch circuit for switching the output of an in-field YC separation circuit and a motion adaptive YC separated signal as the output of a mixing circuit. CONSTITUTION:A video switching signal 111 as the output signal of a timing pulse generating circuit 7 for generating a signal synchronized with an inputted signal V takes two values of '0' and '1'. When the signal 111 is '0', (a) and (y) are connected to both switch circuits 10 and 11, an in-field YC separated Y signal 102 is outputted to an output terminal 2, and an in-field YC separated C signal 103 is outputted to an output terminal 3 respectively. When the signal 111 is '1', (b) and (y) are connected to both switch circuits 10 and 11, a motion adaptive YC separated Y signal 106 as the output of a Y signal mixer circuit 8 is outputted to the output terminal 2, and a motion adaptive YC separated C signal 107 as the output of a C signal mixer circuit 9 is outputted to the output terminal 3 respectively.
Patent JP-H0991303-A (JP)
Title: Data management device
Inventor: SHIMOYANAGI SATORU
IPC: G06F12/00
Filed: 1995-09-22
Abstract: PROBLEM TO BE SOLVED: To provide the data management device which can decrease the amount of information stored in an index table and shorten the retrieval time of data. SOLUTION: This data management device is equipped with a data part 50 which stores data and discrimination information, a hash converting means 12 which converts the discrimination information into a hash value, a 1st index table 40 which consists of blocks containing hash values, discrimination information, and storage positions, a 2nd index table 30 which contain hash values as the indexes of the respective blocks, and a retrieval means 13 which converts the discrimination information into the hash value, specifies the block containing the hash value comparing the hash value in the 2nd index table 30, retrieves the hash value stored in the 1st index table 40, specifies an object to be retrieved by contrasting the discrimination information belonging to the hash value, and retrieves corresponding data with the discrimination information.
Patent JP-H03108146-A (JP)
Title: Tape tension controller for magnetic recording and reproducing device
Inventor: NAKAGAKI HARUSHIGE
IPC: G11B15/43
Filed: 1989-09-22
Abstract: PURPOSE:To apply equal control accuracy regardless of a feed direction by controlling a gain switching means and correcting the gain of a tension control system corresponding to the feed direction of a magnetic tape. CONSTITUTION:A microcomputer for system control as the control means 19 outputs a control signal es of 'L' when an ordinary reproducing operation is commanded with an operating key, and the control signal es of 'H' when a reverse tape feed operation is commanded. Meanwhile, the gain switching means 18 inputs the input signal ei of a tension sensor 7, and is controlled corresponding to the control signal es of the control means 19. When the signal es is set at 'H', an operation is performed so as to heighten the control gain of a motor 9 for reel driving corresponding to the signal ei. Then, when the tape is fed in the reverse direction, the reduction of a loop gain can be corrected by performing the switching control of resistors 35, 36 with the transistor 24 of the switching means 18. In such a way, the equal tension control can be applied regardless of the feed direction of the tape.
Patent JP-H07101783-A (JP)
Title: Carbon fiber reinforced carbon composite material and sliding material using the same
Inventor: YAMAMOTO IWAO
IPC: C04B35/83
Filed: 1993-09-30
Abstract: PURPOSE:To obtain a carbon fiber reinforced carbon composite material (C/C composite material) having excellent wear resistance by using inorganic particles having prescribed Knoop hardness as a component of the material. CONSTITUTION:The carbon fiber made from pitch, etc., in a form of a strand consisting of 2000 to 8000 single fiber bundles, etc., is cut into short fibrous carbon fiber bundles having <=20mum diameters and 10 to 40T/mm<2> elastic modulus. Then the carbon fiber bundles are fibrillated to form a sheet in which the fibers are two-dimensionally and randomly oriented and the sheet is impregnated with a furan resin or pitch to form a web. Subsequently, inorganic particles having >=300kg/mm<2> Knoop hardness and 0.1 to 800mum particle size are uniformly sprayed on the web and thereafter the resulting web is subjected to laminate molding to obtain a molding through adjusting the inorganic particle content on the volume basis to 1 to 50vol.% at the time of molding the FRP. Thereafter, this molding is baked and densified in an atmosphere of gaseous nitrogen, etc., at 800 to 2800 deg.C to obtain the objective C/C composite material. The subject sliding material can be obtained at need by using this composite material.
Patent JP-H03107601-A (JP)
Title: Pressure vessel
Inventor: MORITA SHINSUKE
IPC: F15B1/08
Filed: 1989-09-22
Abstract: PURPOSE:To obtain a pressure vessel having a safety device which operates surely in the case of abnormal pressure rise in spite of its simple structure by providing a flexible outer wall which deforms plastically outwards before breakage of a shell, and by arranging a plug as a seal into a through hole by means of a packing. CONSTITUTION:An end plate 18, which is concave towards the inside of a shell 16 of an air tight chamber, plastically deforms outwards as a flexible outer wall 21 when inner pressure exceeds a predetermined value. A through hole 22 having a female thread 23 is arranged at the center of the outer wall 21. A plug 25 is screwed into the through hole 22. The plug 25 has a flange 30, which forms a groove 35 for retaining a packing oc a surface facing to the flexible outer wall 21, and a stem 31 which has a male thread 32 on it. The flexible outer wall 21 and the flange 30 is sealed by a packing 36 contained in the groove 35 for retaining a packing. When abnormally high pressure acts upon the shell 16, the flexible outer wall 21 warps convex outwards plastically, and then a clearance between the flange 30 and the flexible outer wall 23 increases. Consequently, the packing 36 is pushed outwards by internal pressure and loses its sealing ability. So, gas in the shell 16 is discharged.
Patent JP-S61124177-A (JP)
Title: Semiconductor device
Inventor: TAINO NOBUYASU
IPC: H01L29/78
Filed: 1984-11-20
Abstract: PURPOSE:To improve the withstand voltage between a source and a drain without forming a diffused N<-> type layer like a LDD structure by forming a high density transistor threshold value controlling impurity layer from a substrate at part of a channel between the source and the drain. CONSTITUTION:In a channel region between a source S and a drain D, part of a gate G side, i.e., the state that an impurity layer 13 is implanted in high density is obtained, and the other portion becomes the same impurity density as a substrate 11. Here, the state that a channel N<-> is formed as designated by a broken line even if a gate voltage is 0V, i.e., a depletion state is provided at the gate G side of the source S and the drain D in the portion that the layer 13 is removed by suitably selecting the impurity density of the electrode material of the gate electrode 14', i.e., the polysilicon and the substrate 11. Thus, the withstand voltage between the source S and the drain D can be improved by selecting the impurity density of the polysilicon of the gate electrode 14' with respect to the impurity density of the substrate 11.
Patent JP-H0291518-A (JP)
Title: Fine-diameter electromagnetic flowmeter
Inventor: KAYAMA NAGAOKI
IPC: G01F1/58
Filed: 1988-09-29
Abstract: PURPOSE:To secure a stable flow rate signal by dividing the conduit of a transmission part and forming a flow passage, an electrode, etc., joining them in one body with glass, and integrating and averaging a flow rate and outputting the result. CONSTITUTION:A transmitter 26 is formed by joining an internal tube 15 which has discoid electrodes 17a and 18a formed on the side wall and a couple of external tubes 19 and 20 arranged on both sides of the internal tube 15 with glass and operation wherein the output of the transmitter 26 is integrated and reset is executed when the integral value reaches a specific value is repeated to output the means value as a flow rate signal. Namely, a conversion part 34 consists of an exciting circuit 29, a signal processing circuit 30, an integration circuit 31, a comparing circuit 32, an averaging circuit 33, etc., and even an extremely small flow rate is integrated until the integral value reaches a specific value; and the output is averaged and outputted as a flow rate signal Fs. Consequently, a stable output can be secured.
Patent JP-H0298569-A (JP)
Title: Package of freeze-dried food
Inventor: YAMAGISHI SATOMI
IPC: B65D81/20
Filed: 1988-09-29
Abstract: PURPOSE:To recover freeze-dried food in a short time by a method wherein a package of freeze-dried food with a porous sheet adhered to its inner surface is kept soaked in hot water or water with a sticking device and a fine hole is formed by pushing. CONSTITUTION:With a package P of freeze-dried food soaked in hot water or water, a sticking device 4 is pushed against the package to have a fine hole formed at a portion where a porous material 2 has been adhered. The sticking device 4 consists of a lever portion 4A, a base 4B and a needle body 4C. Vacuum in the package is released by the fine hole to admit hot water or water into freeze-dried food 3, enabling it to be recovered in a short time.
Patent JP-H0665332-A (JP)
Title: Monodisperse copolymer and its production
Inventor: WATANABE OSAMU
IPC: G03F7/004
Filed: 1992-08-21
Abstract: PURPOSE:To produce a new monodisperse copolymer useful as a polymer for a high-resolution resist material and having a mol.wt. arbitrarily controllable by copolymerizing two specific monomers. CONSTITUTION:This copolymer, pref. a block copolymer, comprising structural units of of formulae I and II is obtd. pref. by the anionic copolymn. of monomers of formulae III and IV.
Patent JP-H0291677-A (JP)
Title: Cleaning device for image forming device
Inventor: YAMAZAKI MICHIHITO
IPC: G03G21/00
Filed: 1988-09-28
Abstract: PURPOSE:To prevent residual toner from sticking to a body to be cleaned and to prevent imperfect cleaning from occurring by separating the body to be cleaned from a cleaning means in the case that a temperature is equal to or exceeding a prescribed temperature. CONSTITUTION:When the temperature of a memory coil spring is equal to or exceeding the temperature of a cleaning blade 5, the spring 1 elongates to turn counterclockwise centering around the fulcrum 6 of a cleaner 17 and to separate the cleaner 17 from a photosensitive body 4. At the same time, the cleaner 17 pushes a push SW 8, and as the result of receiving the signal, the operation for forming an image is inhibited in a printer. Then, under the conditions of an ordinary use, at the time when a ventilating fan in the printer stops or when the ventilating fan turns at half speed, as the temperature in the device rises, the blade 5 is separated from the photosensitive drum 4 and the operation for forming the image is inhibited.
Patent JP-S62105498-A (JP)
Inventor: SUZUKI HIDEMOTO
IPC: H02K55/00
Filed: 1985-10-31
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-H0667035-A (JP)
Title: Input/output wiring structure of optical waveguide device
Inventor: IKEDA MITSUAKI
IPC: G02B6/00
Filed: 1992-08-21
Abstract: PURPOSE:To save an installation space and a space for wiring operation. CONSTITUTION:As for the input/output wiring structure of the optical waveguide device 1 which splits one optical signal into plural optical signals and combines plural light signals into one optical signal, input and output optical fibers 7 and 17 are inserted from the same flank of a case 3 which hermetically contains an optical waveguide 6 and connected to the optical waveguide 6.
Patent JP-H0292188-A (JP)
Title: Stereoscopic printing device
Inventor: KARIBE ISAO
IPC: H04N13/04
Filed: 1988-09-29
Abstract: PURPOSE:To make it unnecessary to stop a field and discriminate right end left pictures by successively reading frame video signals from the first frame in a designated area to the last frame in units of a frame, and outputting them to a printer. CONSTITUTION:A solid video signal, whose frame consists of the video field for a left eye and that for a right eye, is stored into a field memory 6 in units of a frame. When a pair of right and left videos re printed, the frame video signal of the designated video is read in unit of a frame from the field memory 6, outputted to a printer 11, when the continuous videos are printed, the frame video signals from the first frame in the designated area up to the last frame are successively read in units of a frame from the field memory 6, and outputted to the printer 11. Thus, it is made unnecessary to stop the field and discriminate the right and left pictures by an operator.
Patent JP-H01166566-A (JP)
Title: Electrically programmable memory cell
Inventor: HAWAADO ERU TEIGERAA
IPC: H01L29/788
Filed: 1988-09-29
Abstract: PURPOSE: To obtain a rapid reading access time without increasing the size of the cell of an EPROM by biasing the control gate and the program drain. CONSTITUTION: A control gate 46 and a program drain 36 are biased in a program cycle. Thus, electrons are allowed to flow from the reading drain 34 to the program drain 36, and the reading drain is allowed to act as a source. An electric field generated by the control gate 46 produces hot electrons, and electrons are allowed to flow through an oxide layer 40 to a floating 44, and stored in it. Also, a voltage lower than a threshold value is impressed to the control gate 46 in the reading drain. Then, currents are allowed to flow from the program drain 36 to the reading drain 34. In this case, hot electrons are absorbed by the control gate 46.