baber/WOPTO huggingface dataset:
Patent JP-H07165490-A (JP)
Title: Single crystal production unit
Inventor: FUJITA HIROMOTO
IPC: C30B29/42
Filed: 1993-12-14
Abstract: PURPOSE:To provide a single crystal production unit capable of realizing the dislocation decrease of a growing single crystal and cost reduction and operating efficiency improvement. CONSTITUTION:A feedstock melt 23 and a liquid sealer 24 are held in a crucible 14 supported revolvably and in a vertically movable way, a seed crystal 18 attached to a revolvable, vertically movable crystal pull shaft 17 is brought into contact with the melt 23 and raised under revolution and a single crystal 25 is pulled in such a state as to be perfectly covered with the liquid sealer 24. This single crystal production unit with the above-mentioned scheme has a cylindrical jig 22 attached to a revolvable, vertically movable shaft 19 formed separately from the crystal pull shaft 17 and immersed in the liquid sealer 24 to raise its level and a control mechanism to control the vertical movement of this jig 22 according to the pull operation for the single crystal 25.
Patent JP-S6442274-A (JP)
Title: Stamp
Inventor: KIN YUUSHIYOU
IPC: B41K1/50
Filed: 1987-12-10
Abstract: PURPOSE: To obtain the proper hardness and impregnate a large amount of ink by negatively or positively carving a character or a pattern on a surface of a main body made of a porous material, and forming a layer impregnatable with ink on a rear face of the main body. CONSTITUTION: A character or a pattern 2 is negatively or positively carved on a surface of a main body 1 made of a porous material, and a felt layer 3 of proper thickness, made of a felt having the continuous babbles (or capillary) such as wool, non-woven fabric or the like, is integrally formed on a rear face of the main body 1. Numeral 4 is a stamp grip part. The felt layer obtained by (compression) molding the felt of proper hardness, has the proper hardness for the use, even though a thickness of the main body 1 is thinned, and has a higher rate of impregnation of ink in comparison with that of the main body 1, so that it can be impregnated with a large amount of ink.  To manufacture a stamp, a small amount of a porous material powder is uniformly rubbed on one face of the felt layer 3 compressed with desired pressure, and then the main body 1 of the porous material and the felt layer 3 are placed in a mold 5 to be compressed and molded by a movable press plate 6 in a heating condition.
Patent JP-2000123858-A (JP)
Title: Manufacture of battery excellent in airtightness
Inventor: KOMATSU SHIGEO
IPC: H01M10/0566
Filed: 1998-10-16
Abstract: PROBLEM TO BE SOLVED: To efficiently provide a battery excellent in airtightness by making a battery precursor having a pipe for communicating the inside/outside of a battery case, and sealing the pipe after removing air by injecting an electrolyte through the pipe. SOLUTION: A power generation element composed of positive/negative electrode plates connected with a lead terminal 3 and a separator is wrapped with a laminated film being a battery case 2 so that only the lead terminal 3 is exposed to adhere the peripheral edge of the laminated film. The opening part 5 is arranged on the opposite side of the lead terminal 3. Next, a metallic pipe 4 is inserted into the battery case 2 from the opening part 5 so as to be partially exposed outside. The opening part 5 is sealed by thermal welding to manufacture a battery precursor 6. Then, an electrolyte is injected into the battery precursor 6 through the metallic pipe 4 by using an injector. Gas infiltrating simultaneously with this is gone outside from the metallic pipe 4. Next, air in the battery precursor 6 is completely removed by a vacuum pump.  The metallic pipe 4 is finally sealed by cold press-fitting.
Patent JP-H01156076-A (JP)
Title: Ink jet recording apparatus
Inventor: ARAI TOSHIHIRO
IPC: B41J2/205
Filed: 1987-12-14
Abstract: PURPOSE:To prevent the generation of color irregularity, by successively comparing the numerical value of a numerical value memory means with the threshold value for determining the dot distribution in the pixel stored in a matrix memory means to determine whether a dot is recorded. CONSTITUTION:When image data of one dot/one bit constitution is inputted, a CPU 31 outputs a numerical value from a numerical value memory means 32 according to the memory order thereof at each time when a bit signal or a signal having to generate a dot is inputted. The threshold value for determining the distribution of the dot recording in the pixel stored in a matrix memory means 25 is inputted to a comparing means 25 according to the memory order. The comparing means 26 compares the inputted threshold value with the numerical value corresponding to each bit of pixel data and the comparing result is outputted as a dot signal showing whether a dot is recorded to drive a recording head. As mentioned above, even when the image data is one dot/one bit constitution, the generation of color irregularity, density irregularity and a stripe can be prevented.
Patent JP-H05150621-A (JP)
Title: Optical unit
Inventor: ROKUSHA KIYOSHI
IPC: G02B26/10
Filed: 1991-11-28
Abstract: PURPOSE:To prevent the degradation in printing quality and image quality by stray light with simple constitution by providing a light shielding wall for cutting off the reflected light of a rotary mirror on the outside of a printing assurance region within a dark box in the optical unit provided with the rotary mirror for scanning rays within the dark box. CONSTITUTION:The printing assurance region on which the reflected light is made incident within the prescribed range on a photosensitive body is set in the scanning region of the polygon mirror 2 and the light signal forming the electrostatic image corresponding to printing or the image on the photosensitive body is outputted by as much as the time when the reflected light of the polygon mirror scans within the printing assurance region. Plural ribs 13 for reinforcement risen from the base of the dark box 1 are provided in the dark box 1. The light shielding wall 3 which cuts off the reflected light of the polygon mirror 2 by a pair of the ribs 13a extending to both side walls of the dark box 1 from both sides of an theta lens 8 is constituted. The laser beam reflected to the outside of the printing assurance region is cut off by the light shielding wall 3 and is prevented from advancing to the printing assurance region. The formation of the unnecessary printing and image by stray light is thus prevented.
Patent JP-S63167355-A (JP)
Title: Stabilization of aqueous solution of iron salt of diethylenetriamine pentaascetatic acid
Inventor: NANBU KAZUJIRO
IPC: G03C5/30
Filed: 1986-12-27
Abstract: PURPOSE:To improve the storage stability of aqueous solution of DTPA.Fe salt by adjusting the pH of aq. soln. of diethylenetriamine penta acetate to 4-7 and retarding the formation of hydroxide of divalent Fe in the aq. soln. CONSTITUTION:The pH of aq. soln. of DTPA.Fe salt is adjusted to 5-7 and the formation of hydroxide of divalent Fe in this aq.soln. is retarded. If the pH of the aq. soln. is adjusted to 4-7, more pref. to 4.5-6.5, the hydroxide of divalent Fe is hardly precipitated even after storage for a long time, thus the soln. becomes suitable for a photographic chemical without causing any trouble. By the way, if the pH exceeds 7, the velocity for forming the precipitate of the hydroxide of divalent Fe is too fast, remarkable increase of precipitate of divalent during storage for a short time is caused and appropriate effect for photographic chemical is forfeitured. on the other hand, if the pH is <4, aq. soln. of appropriate concn. is ot obtd. because the solubility of DTPA.Fe salt is too small. By this constitution, DTPA.Fe salt can be obtd. in the form of stable aq. soln.
Patent JP-H01154393-A (JP)
Title: Semiconductor integrated circuit
Inventor: AWAYA TOMOHARU
IPC: H01L21/8222
Filed: 1987-12-10
Abstract: PURPOSE:To reduce the pow potential difference of an input and an output by connecting a third TR between a first transistor TR having a collector connected to a high level power source through a resistance and a second TR having a collector connected to the high level and an emitter connected to an output end. CONSTITUTION:When the potential VB of a contact B is higher than the base potential of a transistor TR Q21, a diode D is turned on, and the TR Q21 is turned off. When the potential VB of the contact B is lowered according to the on of the diode D, the potential VA of a contact A is raised, the TR Q21 is turned on again and this operation is repeated. Namely, when the potential VB of the contact B is higher than VIN, the diode D is turned on (TR Q21 is turned off) to lower the potential VB of the contact B and apply a feed back so as to turn on the TR Q21, Q22 again. Accordingly, the potential VB of the contact B is maintained to the input VIN of an emitter follower circuit 11 and the output VOUT of the circuit 11 goes to a value formed by subtracting a voltage VBE between the base and the emitter of a TR Q23. Thereby, a voltage deterioration from VIN to VOUT is reduced.
Patent JP-H09132155-A (JP)
Title: Control device for motor-driven power steering device
Inventor: KOBAYASHI HIDEYUKI
IPC: B62D5/04
Filed: 1995-11-09
Abstract: PROBLEM TO BE SOLVED: To provide a control device for a motor-driven power steering device which can provide smooth steering feeling even if an allowable maximum value is set in the current command value. SOLUTION: A first current command value limiter 29 limiting the maximum value of a current command value in a steady state to a relative low value and a second current command value limiter 30 limiting the maximum value in a transient state to a relative high value are provided, and an added value of output of the two current command value limiters by an adder 31 is set to be a current command value I. In a steady state, the maximum value of the current command value is limited to a relative low value, and hence a motor or a motor drive circuit can be protected from generation of heat. In a transient state such as quick handle operation, the maximum value of the current command value is limited to a relative high value, and hence the current command value does not reach the ceiling and a smooth steering feeling can be provided.
Patent JP-S6455442-A (JP)
Title: Integral type machining spring assembly
Inventor: EBARETSUTO HAROO SHIYUWAATSUMA
IPC: F16D3/72
Filed: 1987-12-12
Abstract: PURPOSE: To distribute stresses uniformly to prolong the life of the integral spring assembly formed by machine processing by arranging a plurality of slots and lands in tiers different with each other on the wall means between the end surfaces. CONSTITUTION: A cylindrical cross section 31 is cut partially into different tiers of slots 29 to form an integral spring plate nut 17. In this case, the solid intermediate portions 33 of the different tiers are shifted from each other at a phase of, for example, 90 degrees. The rigidity of the spring is determined by the thickness of the spring members 35, of the wall of the cylindrical cross section 31 and the number of slots 29 and spring members 35. A tension rod 5 connected to a head 21 holds a tool at the distal end of the main shaft with the attaching force of the spring plate nut 17. When the head 21 is pushed against the attaching force of the spring plate nut 17, the holding of the tool is released. By this way, it is possible to distribute the stresses uniformly to prolong the life of the integral machined spring plate nut.
Patent JP-H06337261-A (JP)
Title: Scanning probe microscope
Inventor: OKIGUCHI KEIKO
IPC: G01R33/10
Filed: 1993-12-15
Abstract: PURPOSE:To measure the magnetic field distribution of a sample accurately with high resolution. CONSTITUTION:A probe 2 comprising a magnetic body is brought into contact with the surface of a sample 1 for the purpose of scanning and the state of magnetization is transferred from the sample to the magnetic body at the contact point. The magnetic body is then irradiated with linear polarized laser beam 3 emitted from a light source 10 and the reflection light is received by a light receiving means 5 through a linear polarizing plate. The state of magnetization thus transferred is detected according to magnetooptic effect, i.e., Kerr effect. A control means 6 drives a driving means 7 to scan the surface of sample with the probe and intensity information is detected from Kerr rotation. A processing means 8 renders the contact position between the sample and the probe to correspond with the detection result thereat thus determining the field distribution.
Patent JP-H01156361-A (JP)
Title: Resin composition
Inventor: KITAMURA KAZUO
IPC: C08L67/02
Filed: 1987-12-15
Abstract: PURPOSE:To obtain a resin compsn. being useful for molding an automotive exterior panel having a small linear expansion coefficient and excellent mechanical strengths and being coatable simultaneously with a steel sheet for an automotive exterior panel, by compounding a specified resin component, a carbon fiber and carbon black. CONSTITUTION:An elastic polymer (C) is obtd. by copolymerizing two or more monomers (i) selected from among (meth)acrylates and arom. vinyl compds. in the presence of a rubber (ii) having repeating units derived from butadiene. A resin component (A) is obtd. by compounding 10-50wt.% arom. polycarbonate (a) having an average MW of 10,000-100,000 obtd. from a dihydric phenol and a carbonate precursor, 45-85wt.% polybutylene terephthalate (b) and 16-25wt.% component (c). The title resin compsn. is obtd. by compounding 100pts.wt. component (A), 0.3-2pts.wt. carbon fiber (B) the average length/the average diameter of which is larger than 10 and 1-10pts.wt. carbon black (C) having a specific surface area (measured by means of BET type low temp. nitrogen adsorption method) of 150m<2>/g or larger and an oil absorption of 500ml/100g or larger.
Patent JP-H06157750-A (JP)
Title: Production of polyamic acid solution
Inventor: TAKAHASHI HIROSHI
IPC: C08G73/10
Filed: 1992-11-25
Abstract: PURPOSE:To produce various kinds of polyamic acid solutions having various compositions, concentrations, viscosities, and particle contents with a simple production device and in simplified operations. CONSTITUTION:This method for producing the polyamic acid solution is characterized by comprising (1) a process for dissolving a diamine component comprising one kind or more of diamines in a solvent, (2) a process for dissolving a tetracarboxylic acid component comprising one kind or more of tetracarboxylic acids in a solvent, (3) a process for measuring the produced solution of the components so that the diamine component is substantially equivalent to the tetracarboxylic acid component, and subsequently injected the solutions into a container, and (4) a process for reacting the mixture of the components injected into the container with each other for a prescribed time for the advance of their polymerization reaction. If necessary, filter treatments may be applied to the processes (1) and (2).
Patent JP-H03176021-A (JP)
Title: Vacuum cleaner
Inventor: TOYOSHIMA HISANORI
IPC: A47L9/00
Filed: 1989-12-06
Abstract: PURPOSE:To obtain a vacuum cleaner for enabling optimal suction performance to be controlled in the state of various operations by dividing the normal air quantity area of the vacuum cleaner into a plurality, and by providing the respective air quantity areas with different operation modes. CONSTITUTION:A vacuum cleaner 10 is set to divide a normal air quantity area into the three air quantity areas of A, B, C through a large air quantity area, and is set to provide the respective air quantity areas with different modes and to lower consumption power Wi in the air quantity areas A and C to keep rated consumption power in the air quantity area B only. In this case, the air quantity area A is in such a state that a suction port body 15 is permitted to float from a surface to be cleaned, and the small air quantity area C is in a state or the like that draft resistance is increased with a dust collector 4 blocked by dust. Then, by lowering the consumption power Wi of the air quantity area C, the suction performance of a vacuum degree H or the like is lowered, and safety and operating property are improved, and the suction performance of the vacuum cleaner 10 can be effectively obtained by operating it at rating in the air quantity area B having the maximum working point of a suction power Po.
Patent JP-2001131157-A (JP)
Title: Method for producing optically active 2-methylpiperazine
Inventor: YAMAZAKI HIROYUKI
IPC: C07D241/04
Filed: 1999-11-05
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing optically 2-methylpiperazine having a highly optically active purity by optically resolving (±)-2-methylpiperazine. SOLUTION: This method for producing optically active 2-methylpiperazine, comprising a process for reacting 1 mole of (±)-2-methylpiperazine with 1 mole of an optically active tartaric acid selected from L-tartaric acid and D-tartaric acid to produce the 2-methylpiperazine.monotartarate as two kinds of the diastereomers and then utilizing the difference between the dissolution degrees of the diastereomers to deposit and separate one of the diastereomers, thus dissolving two kinds of the diastereomers in the crystals and the mother liquor, respectively, a process for further reacting with at least 1 mole of the same optically active tartaric acid to produce the 2-methylpiperazine.ditartarate as two kinds of the diastereomers and then utilizing the difference between the dissolution degrees of the diastereomers to deposit and separate one of the diastereomers,  thus dissolving the two diastereomers in the crystals and the mother liquor, respectively, and so on.
Patent JP-H09160104-A (JP)
Title: Camera
Inventor: YAMADA HIROSHI
IPC: G03B15/05
Filed: 1995-12-04
Abstract: PROBLEM TO BE SOLVED: To cope with any displacement on a light emitting condition and to perform desired flat light emission by providing a means for discriminating specified state output information and a means for changing the limit shutter speed of a shutter speed limiting means based on output from the discriminating means. SOLUTION: This camera is constituted of a strobe light emitting part 31 having a flash light emitting tube which emits light by discharging the charge of a main capacitor, a stroboscopic circuit 32 allowing the flash light emitting tube to emit light, a light emission control means 33 for controlling the light emission of a storoboscpeo such as flat light emission by controlling the flash light emitting tube, a shutter control means 36 controlling a shutter 42 and a control means 39 controlling the respective means. By such constitution, the limit shutter speed of the shutter speed limiting means is changed based on the output from the discriminating means discriminating the specified state output information when the shutter speed exceeds the set limit shutter speed.
Patent JP-H03177108-A (JP)
Title: Pulse generator
Inventor: OTEGI HIROICHI
IPC: H01S3/097
Filed: 1989-12-06
Abstract: PURPOSE:To improve efficiency by providing a satuable reactor for reverse current prevention having the voltage-time product of large enough to prevent saturation while the pulse compression of a first stage is executed. CONSTITUTION:One end of the satuable reactor 12 for reverse current prevention is connected to a capacitor 3 for charging at its one end, and the other end is connected to the junction point of the capacitor 4 for compression and the satuable reactor 8. Since this satuable reactor 12 for reverse current prevention becomes high impedance in a non-saturated state for a period that the pulse compression of the first stage is executed, it prevents a pulse current from flowing in a reverse direction. Thus, a pulse current in the reverse direction is prevented from flowing after time when the pulse compression of the first stage is executed, and the pulse generation device of high efficiency can be obtained.
Patent JP-H07168142-A (JP)
Title: Spectacle plastic dyed lens
Inventor: KONISHI TOSHIO
IPC: G02C7/10
Filed: 1993-12-15
Abstract: PURPOSE:To obtain a lens having excellent adhesion property and marring resistance and improved in impact resistance and decolorization property in color development by arranging an impact absorbing layer only on the side of R2 face (eye side). CONSTITUTION:This spectacle plastic dyed lens is provided with a dyed plastic lens base material, the impact absorbing layer arranged on the R2 face, a marring resistant layer and a reflection preventive layer successively arranged thereon, a marring resistant layer arranged on the R1 face of the base material and a reflection protective layer arranged thereon. That is, the impact absorbing layer is arranged only on the R2 face side (eye side). As the material constituting the impact absorbing layer, an acrylic resin coating material, vinyl acetate and vinyl alcohol resin coating material are exemplified. As a materail constituting the marring resistant layer arranged on the impact absorbing layer, a silicone resin, acrylic resin or the like having highly three-dimensional netlike structure are exemplified. As a material used for forming the reflection preventive layer, metal and the oxide of metal or metalloid are exemplified.
Patent JP-2001135757-A (JP)
Title: Board for semiconductor module
Inventor: KOSAKATA AKIYOSHI
IPC: H01L23/36
Filed: 1999-11-05
Abstract: PROBLEM TO BE SOLVED: To provide a board for semiconductor modules which has superior heat transfer and heat-radiating properties and prevents cracking caused by thermal stresses, in the regions where semiconductor chips are mounted. SOLUTION: This board for semiconductor modules for mounting semiconductor chips 7 includes a heat sink 2 and an insulating board 4 soldered to the sink 2. The sink 2 is formed by using a composite material containing carbon and metal.
Patent JP-H09153889-A (JP)
Title: Circuit for making serial or parallel high-speed digital signal correspondingly into parallel or serial one
Inventor: MARUKO BURUTSUIO
IPC: H04Q11/04
Filed: 1996-11-13
Abstract: PROBLEM TO BE SOLVED: To provide a serialigation-parallelization converting circuit for a high speed digital signal. SOLUTION: This serialization-parallelization converting circuit includes a transmitter(TX) and a receiver(RX) on one integrated circuit chip(IC). The transmitter(TX) parallel-serial-converts a data stream, inserts a period word in a prescribed period within this serial scream and line-codes this serial stream. The receiver(RX) draws a clock signal synchronized with the data stream from the serial stream of coded data, decodes data and serial-parallel-converts this decoded signal. These transmitter(TX) and receiver(RX) are constituted to execute the parallel operation of 4 or 8-bit.
Patent JP-2000149812-A (JP)
Title: Cathode-ray tube shadow mask and cathode-ray tube
Inventor: RI SHOHIN
IPC: H01J31/20
Filed: 1999-11-05
Abstract: PROBLEM TO BE SOLVED: To provide a cathode-ray tube shadow mask capable of maintaining a realized image condition excellently in spite of increase in flatness and a size of a panel in a cathode-ray tube and provide a cathode-ray tube having this shadow mask. SOLUTION: A cathode-ray tube shadow mask 13 includes a perforated part 13b, in which multiple electron beam passing hole parts are formed, and a skirt part formed in a bent form at a predetermined interval from the edges of the four sides of the perforated part 13b. When a pitch of the electron beam passage hole part 13a in the minor axis direction of the perforated part 13b is represented by Pv while an interval between the electron beam passage hole parts 13a in the minor axis direction of the perforated part 13b is represented by A, the shadow mask 13 is formed so that the electron beam passage hole part 13a satisfies following expression 1: 0.05<=A/Pv<=0.15. This shadow mask 13 is applied to a cathode-ray tube.