baber/WOPTO huggingface dataset:
Patent JP-H05159318-A (JP)
Title: Tracking control device
Inventor: WATANABE KATSUYA
IPC: G11B7/085
Filed: 1991-12-09
Abstract: PURPOSE:To provide a highly functional device capable of dealing with various disks by which the gain or offset of a tracking control system is set in each area and a stable control performance is always secured, as to an optical recording and reproducing device for a disk having an area capable of recording (RW area) and an area for reproducing only (ROM area). CONSTITUTION:The offset and gain of the tracking control system is adjusted in RW area on a partial ROM disk by a microcomputer 24, and the set value is stored in a built-in RAM. Then, adjustment is similarly made in ROM area, and the set value is stored in the built-in RAM. After that, when RW area and ROM area are retrieved for recording or reproducing, the offset value and the gain value on the RAM corresponding to each area are again set. Also, after RW area and ROM area are retrieved, the offset and gain of the tracking control system are readjusted prior to recording and reproducing.
Patent JP-H06172434-A (JP)
Title: Catalyst for olefin polymerization and polymerization of olefin
Inventor: TASHIRO KOJI
IPC: C08F4/642
Filed: 1992-12-03
Abstract: PURPOSE:To obtain the subject catalyst consisting of a specific transition metal compound, an organoaluminum compound and a contact product of a Mg compound and an electron donative substance, excellent in both of olefin polymerization activityt and economical efficiency and capable of producting an olefin polymer in high yield. CONSTITUTION:The objective catalyst consists of (A) a transition metal compound of the group IVB of the periodic table including a ligand having cyclopentadienyl skeleton [preferably bis(methylcyclopentadienyl)zirconium dichloride, etc.], (B) an organoaluminum compound (preferably >=4C trialkylaluminum, etc.) and (C) a contact product of a Mg compound and an electron donative substance (preferably magnesium chloride.2-ethylhexyl alcohol complex, etc.). Furthermore, the catalyst is preferably prepared by a method comprising bringing the component A into contact with the component B and then bringing the product into contact with the component C or bringing the component B into contact with C and then bringing the product into contact with the component A. The contact temperature is preferably 10-150 deg.C and the contact time is preferably 1sec to 1hr.
Patent JP-H11162180-A (JP)
Title: Semiconductor memory
Inventor: YONEYAMA AKIRA
IPC: G11C16/06
Filed: 1997-11-26
Abstract: PROBLEM TO BE SOLVED: To increase the maximum number of rewrites and holding time. SOLUTION: The memory reads identical data stored in three or more memory cell arrays 200, 201, 202 at once, compares the level of a voltage corresponding to the sum of three or more read currents with that of a reference voltage 204 and outputs the level comparison result as read data of the three or more memory cell arrays 200, 201, 202.
Patent JP-H10146974-A (JP)
Title: Ink jet head
Inventor: KISHI MOTOSHI
IPC: B41J2/14
Filed: 1996-11-19
Abstract: PROBLEM TO BE SOLVED: To give miniaturization and improve a manufacturing efficiency by connecting each driving electrode to driving circuits disposed at extrusions from the base plate of a cover plate, laminating alternately both plates in the direction perpendicular to the arrangement of an ink chamber, and putting actuator units together integrally. SOLUTION: Cover plate 21 for covering each ink chamber 24 is bonded onto the upper surface of a base late having an ink chamber 24 of an actuator unit 20, and the cover plate 31 of adjacent unit is bonded onto the other surface. Piezoelectric elements 22a integrally formed with the plate 22 between each ink chamber 24, and further driving electrodes 23 for applying driving voltage are formed on the opposite wall surface in the ink chamber 24. The rear ends of the electrodes led out onto the bottom surface of the plate 22 reach in the vicinity of the rear end of the plate 22 bottom surface. When the upper surface of the plate 31 and the bottom surface of the plate 22 are bonded, an extrusion 31a is formed on which an IC chip 25 is attached on the upper surface thereof, thereby connecting the electrodes 23 and output side electrodes 28 electrically through this bonding.
Patent JP-H05160111-A (JP)
Title: Semiconductor production equipment
Inventor: HOSHINO MASAKAZU
IPC: H01L21/302
Filed: 1991-12-09
Abstract: PURPOSE:To reduce defects in wafer production due to adhesion of particles produced in the semiconductor production process and to realize an improvement in yield and a high throughput by installing an auxiliary vacuum chamber for discharging a clean gas into a reaction vessel between an observation window and the inside of the reaction vessel. CONSTITUTION:When a clean gas is introduced from a gas bomb 9 to an auxiliary vacuum chamber 3, the clean gas flows to a reaction vessel 11 in the arrow direction through a small hole 7 of the auxiliary vacuum chamber 3 by the pressure difference between the auxiliary vacuum chamber 3 and reaction vessel 11 and flows into the inside of the reaction chamber. By adjusting a valve 8 so that the pressure inside the auxiliary vacuum chamber 3 may be higher than that in the reaction vessel at all times, a reactive gas or reactive products inside the reaction vessel 11 will not reach the surface of a window glass 2 due to diffusion or flow, so that the surface of the window glass 2 can always be maintained in a clean state.
Patent JP-H09158683-A (JP)
Title: Lining constructing device of tunnel
Inventor: NARA SUSUMU
IPC: E21D11/10
Filed: 1995-12-13
Abstract: PROBLEM TO BE SOLVED: To simplify the pressurization control by pressurizing jacks, and enhance the filling performance of a filler such as concrete. SOLUTION: A lining constructing device of a tunnel propels a shield 1 according to excavation of a tunnel, and inputs and places concrete between a segment 10 and an excavating surface 31 from a concrete supply pipe, and pressurizes this placed concrete by plural pressurizing jacks 5 through a press ring 6, and is provided with a concrete pressure measuring device 9, a multiflow type hydraulic pump unit 22 to displace the respective pressurizing jacks 5 at the same stroke and a rotational quantity control means 21 to control an operating fluid supply quantity supplied to the multiflow type hydraulic pump unit 22 so that pressure of the placed concrete coincides with preset pressure. An introducing port into which the concrete supply pipe can be slidably inserted is provided in the press ring 6.
Patent JP-H0596514-A (JP)
Title: Method of post-treating wooden material containing ionic surface-active agent
Inventor: KITANO TAKAHISA
IPC: B27K3/50
Filed: 1991-10-07
Abstract: PURPOSE:To improve water absorption properties and the like as defects by a method wherein substance having ion exchange power on ionic surface active agent-containing wood and wood based material. CONSTITUTION:Stearyl trimethyl ammonium chloride-containing wood is immersed in lauryl sodium sulfate-containing aqueous solution at 60 deg.C, under 2 atm for one hour. Thus, the water absorption properties and moisture absorption of the stearyl trimethyl ammonium chloride-containing wood are remarkably improved.
Patent JP-H08178333-A (JP)
Title: Air conditioner
Inventor: YOSHINAGA KOZO
IPC: F24F13/20
Filed: 1994-12-27
Abstract: PURPOSE: To reduce a pressure lost in an air passage, air-blowing sound produced by disturbed air flow near a top plate, and improve an effective utilization of a heat exchanger by a method wherein an air-blowing side of an air blowing port edge of an air blowing duct is provided with an air-blowing guide having a curved shape. CONSTITUTION: A ceiling built-in type air conditioner in which an air blowing duct 4b having an air suction port 3 at a lower side and an air blowing duct 4b at an upper side through a fan housing 4a is arranged between the two sets of right and left heat exchangers 5a, 5b is constructed such that air blowing sides of air blowing port edges 13a, 13b of the air blowing duct 4b are provided with air-blowing guides 14a, 14b having a curved surface shape. With such an arrangement as above, since a flow of blown air is dispersed to flow along the blowing air guides 14a, 14b, a striking angle of the air against a top plate 6 is made to be gradual and a pressure loss caused by striking of the air is reduced. As a result, the number of revolution of a fan per the same air volume is reduced and a disturbance of air flow is also reduced, resulting in that an air-blowing noise is also reduced.
Patent JP-H04198990-A (JP)
Title: Graphic display device
Inventor: ABE KAZUO
IPC: G09G5/36
Filed: 1990-11-29
Abstract: PURPOSE:To allow the continuation of a graphic display operation by restoring data by vertical parity check and horizontal parity check processing at the time of reading the graphic display information of fixed data out of a segment memory to display this information. CONSTITUTION:A horizontal parity check section 18 makes horizontal parity check in every memory block unit of the graphic display information and detects the memory block unit where a parity error arises. An error bit detecting section 20 detects an error bit number from the data unit of the graphic display information in which this parity error arises and the data address and the memory block unit. A data restoring section 19 inverts the content of the error bit number and a transfer section 16 transfers this content as the correct graphic display information to a graphic processor 5, thereby graphically displaying the information. The immediate continuation of the graphic display is possible in this way without making self-resetting of the entire part of the system even if the parity error arises at the time of reading out of the segment memory.
Patent JP-H08221226-A (JP)
Title: Self-constituted network/printer system
Inventor: KURISUTOFUAA JIEI OOKUREA
IPC: G06F3/12
Filed: 1995-12-14
Abstract: PROBLEM TO BE SOLVED: To optimize the use of a printer memory by assigning the memory function of a printer based on the history information of a network user. SOLUTION: This system includes a device and method for managing a set of printing memory requests. The device and method is provided with a random access memory which stores data in a set of blocks in a variable size, and a processor 345 which decides the source of the preliminarily decided number of printing input job groups. A controller 315 generates an advice for the rearrangement of a set of optimized memory blocks according to the source of the preliminarily decided number of printing input job groups in response to the decision of the size by the processor 345.
Patent JP-H03187976-A (JP)
Title: Ceramic solid solution powder, its production and ceramic solid solution powder sintered compact
Inventor: KANAMARU MORIYOSHI
IPC: C04B35/58
Filed: 1989-12-14
Abstract: PURPOSE:To obtain a ceramic solid solution powder, composed of a prescribed chemical composition and having an NaCl type crystal structure by converting powders of TiO2 and Al2O3 or Al2TiO5 powder into a solid solution under prescribed conditions. CONSTITUTION:A mixed powder composed of TiO2 powder and Al2O3 powder or Al2TiO5 powder is prepared. The resultant powder is then converted into a solid solution in a process for nitriding and/or carburizing in a reductive atmosphere. Thereby, the objective ceramic solid solution powder having a chemical composition expressed by the formula [x is 0-0.7; y is 0-1; z is 0-1; (y+z) is 0.9-1; a is 0.6-1] and an NaCl type crystal structure is obtained.
Patent JP-H07183545-A (JP)
Title: Semiconductor device
Inventor: DOSEN NORIAKI
IPC: H01L29/866
Filed: 1993-12-24
Abstract: PURPOSE:To prevent a Zener diode from varying in Zener breakdown voltage by a method wherein an N-type or first conductivity-type cathode diffusion region is positioned in a region on the lateral side of a P-type or second conductivity-type anode diffusion region when a Zener diode is put in a breakdown state to use. CONSTITUTION:An end f of a first conductivity-type cathode region 21 is positioned in a second conductivity-type lateral diffusion region 17 of a second conductivity-type anode region 15, the end f of the first conductivity-type cathode region 21 correspondent to the surface of a junction is set lower in impurity concentration than a spot j near a bulk junction under a window. By this setup, a spot highest in impurity concentration in the second conductivity-type anode region 15 adjacent to a junction of a Zener diode is located under the region forming window, and a Zener current Iz beings to flow from a semiconductor substrate as the Zener diode is put in a breakdown state making the above spot a starting point, so that hot carriers are restrained from being injected into an insulating film 12 through a surface adjacent to a PN junction. Therefore, a semiconductor device of this constitution is restrained from varying in Zener voltage.
Patent JP-H11158364-A (JP)
Title: Polycarbonate resin composition and light-conducting plate
Inventor: KAWAHIGASHI HIROYUKI
IPC: C08L69/00
Filed: 1997-11-27
Abstract: PROBLEM TO BE SOLVED: To provide a polycarbonate resin composition suitable for forming a light-conducting plate holding sufficient light conductivity, even when subjected to a prism pattern-transferring treatment, having the substantially same total light transmittance as that of PMMA(polymethyl methacrylate), and capable of being also used under severer environments than those for the PMMA, without deteriorating the heat resistance and impact resistance of the polycarbonate, and to provide a light-conducting plate formed from the polycarbonate resin composition. SOLUTION: This good light-conducting polycarbonate resin composition comprises (A) 100 pts.wt. of a polycarbonate resin and (B) 0.01-1.0 pt.wt. of an acrylic resin having a mol.wt. of 200-100,000. The resin composition, if necessary, further contains (C) 0.01-1.0 pt.wt. of an alicyclic epoxy compound. The light-conducting plate is produced by forming the good light-conducting polycarbonate resin composition.
Patent JP-H05257398-A (JP)
Title: Intermediate transfer member
IPC: G03G15/16
Filed: 1992-12-04
Abstract: PURPOSE: To obtain a device making a photoconductive intermediate transfer member with a conductive backing usable for an electrophotographic printer by applying a precharge and helpfully using light. CONSTITUTION: A toner transfer device provided with an intermediate transfer belt 28 having a transparent substrate whose conductivity is high, together with an electrifier 64 and an illuminating lamp 66 is provided. The intermediate transfer belt 28 is electrified in advance before the belt 28 is intruded into a transfer nip region to generate a low or reverse level electric field therein. Then, a photoconductive layer of an intermediate surface is exposed with light energy and the precharge on the photoconductive layer is discharged to generate a high level transfer electric field in a transfer nip.
Patent JP-2000146940-A (JP)
Title: Method for determining amount of diethyleneglycol in polyester
Inventor: NAGASAKA TOSHIO
IPC: G01N30/88
Filed: 1998-11-16
Abstract: PROBLEM TO BE SOLVED: To easily measure a fine diethylglycol content in polyester by thermally decomposing polyester under the coexistence of an organic alkali reagent and using thermal decomposition gas chromatography for the obtained product. SOLUTION: An organic alkali reagent is added to polyester, hydrolysis and formation of methylderivative are made simultaneously by a thermal decomposition device, and a solution of tetramethylammoniumhydrooxide is used for the organic alkali reagent. A vertical heating oven type thermal decomposition device is used for thermal decomposition and temperature near a room temperature is maintained up to a point immediately before a sample holder is exposed to thermal decomposition, thus minimizing sample loss. An optimum thermal decomposition temperature is approximately 400 deg.C. When polyester is in a granular form, it is pulverized to increase the contact area with a reagent, thus performing thermal decomposition and the formation of methylderivative smoothly and hence improving measurement accuracy.  Therefore, a small amount of diethyleneglycol content that is contained as the polymerization by-product of polyester can be measured by conventional thermal decomposition chromatography.
Patent JP-H03187752-A (JP)
Title: Recorder
Inventor: MIURA YASUSHI
IPC: B41J2/01
Filed: 1989-12-18
Abstract: PURPOSE:To improve efficiency of radiation of a heat pipe and a fin by generat ing an air current around a heat conducting component conducting heat generat ed in a recording head and providing a component which restrains separation of the air current from the heat conducting component. CONSTITUTION:Common side plates 3A are provided to both sides of a fin 3 to be so fitted as to extend vertically to a longitudinal direction of a part 2B of a heat pipe 2 therein, and a passage changing part 3B is installed to one side plate 3A. A fan 4 for generating an air current is arranged below the fin 3 so as to generate the air current parallel to an extending direction of the fin 3. The air current generated with the fan 4 flows along a surface of the fin 3 and a circumferential part of the heat pipe 2 to change a direction of the current to a rear side of the heat pipe with the passage changing part 3B, and separation of the air current from the circumfieretial surface of the heat pipe is delayed to the rear. A so called peeling area to be formed behind the heat pipe can be decreased thereby, and heat radiation from the heat pipe 2 and the fin 3 are efficiently performed.
Patent JP-H05267993-A (JP)
Title: Signal processing system by neural net driving cyclic digital filter
IPC: G06N3/00
Filed: 1991-12-10
Abstract: PURPOSE:To execute a signal processing whose reproducibility is satisfactory by allowing an analog signal to be subjected to digital processing, and suppressing its quantization, when it is reproduced to a digital signal again. CONSTITUTION:The system is constituted of a sampler 2a for A/D-converting an analog signal ud (v (t)) outputted from an object 1 at a sampling interval T, a sampler 2b for A/D-converting an error signal of the analog signal of the object 1, and an analog reproducing signal u (v (t)) obtained by D/A- converting a digital output signal of a neural net driving cyclic digital filter (NNDF) 3a, the NNDF 3a for executing a digital operation to a digital converting signal (a), and a zero-order holding circuit 4 for D/A-converting a digital output signal y[kT] of the NNDF 3a.
Patent JP-H05279473-A (JP)
Title: Production of conductive resin
IPC: C08G67/00
Filed: 1992-11-10
Abstract: PURPOSE:To obtain the photoconductive resin excellent in photoconductivity and conductivity by single-stage reaction. CONSTITUTION:An aromatic compound such as a condensed polycyclic aromatic compound or pitch is condensation-reacted with a crosslinking aromatic compound such as terephthalic dichloride or a lower alkyl ester of terephthalic acid in the presence of an acidic catalyst. Examples of the acidic catalyst include an inorganic acid such as sulfuric acid and a Lewis acid such as AlCl3. The reaction can be performed at approximately 50-200 deg.C in the presence or absence of a solvent. The polymerization degree of the produced resin is approximately 3-100. The resin exhibits high conductivity and photoconductivity.
Patent JP-H08184434-A (JP)
Title: Fixing device for inclination sensor
Inventor: NAKAMURA KYOJI
IPC: G01C9/06
Filed: 1994-12-27
Abstract: PURPOSE: To obtain a compact device for fixing an inclination sensor which is stabilized against vibration and temperature variation and the attitude thereof is adjustable. CONSTITUTION: In the device for building an inclination sensor, detecting inclination of a machine against the direction of gravity, in the machine body and fixing the inclination sensor in place, inclination sensors 4, 7, 10 are held on the surface and a board 1 is provided on the read side oppositely to a fixing base 11 disposed on the vertical wall face of the machine body. A supporting leg 15 having adjustable length is provided in order to support the board 1 on the fixing base 11 swingingly about the axis connecting a pair of contact members 14a, 14b provided, while being spaced apart in the horizontal direction and touching the fixing base 11, on the rear surface of the board 1 thus supporting the board 1 on the fixing base 11 at a position separated from the swinging axis by a predetermined distance.
Patent JP-H03186780-A (JP)
Title: Test circuit for output buffer
Inventor: OBARA KAZUTAKA
IPC: G01R31/317
Filed: 1989-12-15
Abstract: PURPOSE:To enable a control of circuit with the minimum control signal by controlling the control circuit with at least one control signal and connecting the control signal to the inputs of more than two flip flops connected in series in the control circuit. CONSTITUTION:In a test circuit, the control circuit is interposed between an output buffer and the input terminal IN and controlled by one control signal C which is connected to the inputs of two flip flops F1, F2 connected in series in the control circuit. Two flip flops F1, F2 connected in series are made to form four states (0, 0), (0, 1), (1, 0), (1, 1), and the following relations (C1, C2) = (1, 1) at the time t1, (C1, C2) = (1, 0) at the time t2, and (C1, C2) = (0, 0) at the time t3 are applicable. When the operation of control circuit is expressed in a logical equation, P=C1.-C2+-C1.-C2.IN. Since P=0, OUT=1 at the time t1, P=1, OUT=0 at the time t2 and P=IN, OUT=-IN at the time t3, a desirable truth table is obtained and the control can be made by the minimum control signal.
Patent JP-H06174744-A (JP)
Title: Circuit test probe
Inventor: OZAKI KENJI
IPC: G01R31/28
Filed: 1992-12-07
Abstract: PURPOSE:To protect a circuit to be tested, e.g. an integrated circuit, against damage or positional shift without increasing electrical contact resistance. CONSTITUTION:The circuit test probe 10 is constituted of a highly rigid main probe 12 and a flexible subprobe 16 having low rigidity such that the subprobe 16 is positioned, at the tip 16A thereof, with respect to the main probe 12 when the subprobe 16 comes into contact with a circuit to be tested e.g. a semiconductor wafer 14, and deformed by a predetermined amount or more. The subprobe 16 comes into face contact with the semiconductor wafer 14 to decrease electrical contact resistance and to protect the semiconductor wafer 14 against damage. Furthermore, the subprobe 16 is positioned by the main probe 12 thus preventing positional shift of the semiconductor wafer 14.
Patent JP-H05133279-A (JP)
Title: Fuel supply device for gas engine
Inventor: TSUKAMOTO TOKIHIRO
IPC: F02D19/02
Filed: 1991-11-13
Abstract: PURPOSE:To supply fuel gas of the amount proportional to an intake amount in a full operation range of a gas engine. CONSTITUTION:An intake amount measurement device 7 and a throttle valve 19 is provided on an intake pipe 5. Solenoid valves 15a, 15b, 15c and critical flow venturies 16a, 16b, 16c whose flow rates are different from each other are respectively connected to gas control pipes 14a, 14b, 14c which are parallelly arranged and connected to each other, and thereby a gas flow rate control mechanism 13. A bomb 9 of a compressed natural gas is connected to the intake pipe 5, between the intake amount measurement device 7 and the throttle valve 19, through the gas flow rate control mechanism 13. The solenoid valve on the gas control pipe on which the critical flow venturi is selected for flowing the compressed natural gas of an amount in proportionate to an intake amount measured by the intake amount measurement device 7. The solenoid valve is opened for a time during which fuel gas of the amount proportional to the above-mentioned intake amount is flowed at a specified frequency, and a required amount of fuel gas is supplied to the intake pipe.