baber/WOPTO huggingface dataset:
Patent JP-H03162138-A (JP)
Title: Time diversity communication system
Inventor: FUJIMOTO YOSHIYUKI
IPC: H04B7/02
Filed: 1989-11-21
Abstract: PURPOSE:To effectively allow the system to function even in the case of flat fading by providing a delay line with a tap on a transmitting equipment side, allowing a signal to pass through this delay line with a tap and diffusing it in the time base direction, and setting it to a state being equal to a signal which passes through a multi-path in a propagation path. CONSTITUTION:A signal inputted to an input terminal 10 of a transmitting equipment side modulates a carrier wave of an intermediate frequency band by a modulator 1. A modulated signal passes through a delay line 2 with a tap, and thereafter, converted to a high frequency signal of a prescribed frequency by a transmitter 3 and sent out of a transmitting antenna 4. In such a state, the delay line 2 with a tap diffuses the inputted signal in the time base direction and sets it to a state being equal to a signal which passes through a multi-path by a propagation path. In such a way, even against flat fading, a signal can be converged and synthesized on a receiving equipment side, therefore, a line disconnection can be prevented, and a stable communication can be executed.
Patent JP-H073390-A (JP)
Title: Steel for machine structure excellent in machinability and cold forgeability
Inventor: IWAMOTO TAKASHI
IPC: C22C38/00
Filed: 1993-12-03
Abstract: PURPOSE:To obtain the steel excellent in machinability and cold forgeability because of the needlessness of hardening as pretreatment, capability of graphitization by an extremely short time heat treatment and the extreme refinement of the graphite grain diameter. CONSTITUTION:This steel has compsn. contg., by weight, 0.1 to 1.5% C, 0.5 to 2.0% Si, 0.1 to 2.0% Mn, 0.005 to 0.2% Zr, 0.0015 to 0.0150% N and <=0.0030% 0 and contg. one or >=two kinds selected from 0.0003 to 0.015% B, 0.01 to 0.5% Al, 0.005 to 0.05% Ti, 0.0005 to 0.200% rare earth metals, 0.05 to 0.5% V, 0.005 to 0.05% Nb, 0.1 to 3.0% Ni and 0.1 to 3.0% Cu and has a metallic structure essentially consisting of ferrite and graphite.
Patent JP-H09149133-A (JP)
Title: Voice input terminal and voice synthesis terminal for video conference system
Inventor: MOMII AKINORI
IPC: G10L21/0316
Filed: 1995-11-22
Abstract: PROBLEM TO BE SOLVED: To provide the video conference system of multi-spot connection without the feeling of incompatibility in terms of voice by contriving a terminal equipment or a voice synthetic terminal equipment on a present side regardless of the characteristics of the terminal equipment on an opposite side. SOLUTION: A voice codec communication control part 2 is provided with a memory 8 and the voice output level of the other terminal connected to it is registered as a data base. At the time of starting a video conference, the voice codec communication control part 2 accesses the memory 8 and reads the data of the other terminal 7 on the opposite side connected through a network 6. Then, a difference with the voice output level of the present terminal is calculated and the difference value is set to an electronic volume 3 for transmission. The voice send-out level of the microphone 1 of the present terminal is -30dB, the level of the other terminal 7 is -15dB and the difference +15dB is set to the electronic volume 3 for the transmission.  By adjusting the electronic volume 3 for the transmission, the voice output level sent out from the present terminal is turned to -15dB and almost matches with the send-out level of the other terminal 7 on the opposite side.
Patent JP-H06147161-A (JP)
Title: Cylinder fixing device for rotary compressor
Inventor: NAKANO MASAO
IPC: F04C18/356
Filed: 1992-11-16
Abstract: PURPOSE:To restrain occurrence of thermal strain during welding of a cylinder of a compressor by providing a flange part having a height higher than that of the center part of the cylinder, in a part making contact with the closed container of the cylinder, and by welding the flange part which is therefor secured. CONSTITUTION:A closed container 1 is provided therein with a motor and a compressing mechanism part which comprises a cylinder 4 having a crank shaft 3, upper and lower bearings, a piston 7 and a circular cylinder, and a shut-off valve 6 fitted in a groove 4-2 formed in the cylinder 4 so as to be moved in the groove. A flange part 4-1 having a height higher than that of the center part of the cylinder 4 is provided in a part of the cylinder 4 which makes contact with the closed container 1, and is welded to as to be fixed. Alternatively, the cylinder is fitted and fixed in the closed container 1, and further, the flange part 4-1 of the cylinder 4 is welded so as to be fixed. With this arrangement, a thermal strain induced when welding the cylinder 4, is absorbed by the flange part 4-1, and accordingly, the degree of affection of thermal strain upon the cylinder 10 is decreased, thereby it is possible to prevent the groove 4-2 from being distorted.
Patent JP-H04177035-A (JP)
Title: Cooling/heating device
Inventor: KURACHI MASAO
IPC: F24F5/00
Filed: 1990-11-08
Abstract: PURPOSE:To absorb abnormal expansion, control a suction amount of liquid and hence control the amount of sucked refrigerant by providing a gas sucking pipeline communicating with the upper part of a gas/liquid mixer on one end and with a suction pipeline on the other end, a first liquid suction pipeline and a second liquid suction pipeline communicating with the lower part of gas/liquid mixer on one end and with the sucking pipeline on the other end and a liquid suction control valve which controls the amount of suction liquid of the second liquid suction pipeline. CONSTITUTION:The liquid refrigerant sucked up from a liquid suction pipeline 17 under the control of a liquid suction control valve 20 is sucked up into a suction pipeline 18 of a refrigerant carrier device 11. At that time, gas refrigerant is sucked form a gas sucking pipeline 19 by the flow of liquid refrigerant and its differential pressure and mixed with the liquid refrigerant. This construction makes it possible to take in a proper amount of liquid refrigerant and gas refrigerant into the suction side of the refrigerant carrier device 11 constantly. Since it is possible to take in gas/liquid mixed refrigerant mixed with a proper amount of gas refrigerant in the refrigerant carrier device 11 in a user side refrigeration cycle both during heating and cooling time, abnormal expansion can be absorbed even when the liquid refrigerant is partially vaporized, which results in the generation of bubbles.
Patent JP-H09141762-A (JP)
Title: Bearing member, manufacture thereof and molding die device
Inventor: AIDA KOJI
IPC: B29L31/00
Filed: 1995-11-22
Abstract: PROBLEM TO BE SOLVED: To enhance the dimensional accuracy for fitting a rotary shaft into a bearing member. SOLUTION: This bearing member consists of a support face 44b for supporting a rotary shaft from one side, a first bearing part 42a formed by a first molding die, a support face 45b for supporting the rotary shaft from the other side, and a second bearing part 42b formed by a second molding die. In addition, grooves 51, 52 are formed on the second molding die side of the support face 44b opposed to the rotary shaft at the first bearing part 42a and on the first molding die side of the support face 45b opposed to the rotary shaft at the second bearing part 42b. Burrs are generated on a ridge line on the second molding die side of the groove 51 in the first bearing part 42a and a ridge line on the first molding die side of the groove 52 in the second bearing part 42b.  However, the grooves 51, 52 are formed on the support face 44b of the first bearing part 42a and on the support face 45b on the second bearing part 42b respectively. Consequently, no burrs are ever generated protruding inwardly from each support face 44b, 45b.
Patent JP-H02148312-A (JP)
Title: Microcomputer
Inventor: FUJIOKA SOZO
IPC: G06F15/78
Filed: 1988-11-30
Abstract: PURPOSE:To decide the frequency of clocks inputted from the outside by providing a charge pump which outputs a voltage corresponding to the frequency of clock signals and a voltage discrimination circuit which decides the frequency of the clock signals from the output voltage of the charge pump. CONSTITUTION:A charge pump 20 boosts a voltage produced across a capacitor 22 by means of clock signals and inverted clock signals and the boosted voltage is sent to the capacitor of the next stage by means of a transistor 21. By repeating such operation by the number of capacitors, a voltage corresponding to the frequency of inputted clock signal 8 is outputted. A voltage discrimination circuit 30 fetched a signal inputted from the pump 20 and passes the signal through gates 311-31n different in threshold level, of which those having threshold levels lower than the output voltage of the pump 20 output 'L' and those having threshold levels higher than the output voltage output 'H'. By reading the output of the gates 311-31n on a data bus, the frequency of the clock signals 8 is decided. Therefore, the frequency of clocks inputted from the output can be decided and, even when clock signals having a frequency other than a set frequency are inputted, the clock signals can be processed.
Patent JP-H07161934-A (JP)
Title: Semiconductor device and its manufacture
Inventor: MATSUI YUICHI
IPC: H01L21/822
Filed: 1993-12-06
Abstract: PURPOSE:To provide a manufacturing method of a capacitor element which reduces leakage current without decreasing its capacitance. CONSTITUTION:A Ta2O5 film 5 is formed on an Si-containing lower electrode W film 4 as a dielectric film. Then, thermal treatment is carried out in atmosphere wherein water vapor is incorporated by making H2 gas pass through a bubbler heated with pure water. The Ta2O5 film 5 is oxidized without oxidizing a lower electrode and oxygen lacking defect in a film is repaired. Furthermore, Si contained in the W film 4 is thermally diffused to the Ta2O5 film 5, and electrical defect in the Ta2O5 film 5, especially near a lower electrode interface can be repaired. Thereby, leakage current can be reduced by at least one digit when compared to a capacitor element which is manufactured without containing Si in W of a lower electrode.
Patent JP-H09129877-A (JP)
Title: Manufacture of semiconductor device, manufacture of insulated gate semiconductor device, and insulated gate semiconductor device
Inventor: SUZUKI TAKASHI
IPC: H01L29/739
Filed: 1995-10-30
Abstract: PROBLEM TO BE SOLVED: To form a source contact region in a self-matching manner without using photolithography, and realize a high level of integration. SOLUTION: By using a first film 12 which was used for forming a trench, a second film 14 covering the trench surface is formed. By etching back the whole surfaces of the first film 12 and the second film 14, and using the difference of the etching rate, only the first film 12 is eliminated, and a contact hole is automatically formed adjacently to the trench. Since the contact hole is formed in an self-matching manner, working precision of the minimum pattern size in photolithography can be realized. As to the second film 14, sufficient film thickness for functioning as an interlayer insulating film can be ensured. The first film 12 and the second film 14 are positioned above the semiconductor substrate surface, so that the stress at the time of film formation and its working is not applied to the semiconductor substrate.
Patent JP-2000131073-A (JP)
Title: Angular velocity detection device and its drive method
Inventor: NAKAJIMA AKIO
IPC: G01C19/5614
Filed: 1998-10-27
Abstract: PROBLEM TO BE SOLVED: To enhance the detection accuracy of angular velocity in an angular velocity detection device using an angular velocity detection element consisting of a monocrystalline crystal, and its drive method. SOLUTION: The angular velocity detection device is provided with a vibrator 1 with at least one branch for drive with at least two pairs of drive electrodes for performing self-excited vibration in the direction of in-plane (out-of plane) and a branch for detection with at least a pair of detection electrodes that are in-plane-(out-of-plane-) vibrated in synchronization with the branch for drive and is vibrated outside (inside) the surface due to coriolis force accompanied by rotation, an oscillation circuit 2 that is connected to the drive electrode of the vibrator for performing the self-excited vibration of the vibrator 1, a detection circuit 3 that is connected to the detection electrode of the branch for detecting the vibrator 1 and has a current/voltage conversion circuit consisting of a feedback resistor and an operational amplifier and an addition/ subtraction circuit,  a detection circuit 4 for detection the output of the detection circuit 3 according to the output of the oscillation circuit 2, and a low-pass filter for cutting the AC output of the detection circuit 4.
Patent JP-H08158654-A (JP)
Title: Jack for head jamb
Inventor: ITO MASAMICHI
IPC: E04G25/04
Filed: 1994-12-09
Abstract: PURPOSE: To provide a jack for head jamb having an oppresive function to obtain easy mounting for use as the jack for head jamb and having superior practicability enabling to use as a support rod by eliminating the oppresive function upon requirement. CONSTITUTION: A support sleeve 3 is elevatably provided to an abutting board through a jack mechanism. A movable sleeve 5 is provided to the end part of the support sleeve 3 through a connecting sleeve 7 in such a manner that the movable sleeve 5 can be freely and elastically moved in its axial direction to the support sleeve 3 by means of a built-in elastic body 4 for cushion. An abutting board 1B is provided to the end part of the movable sleeve 5 in a facing state toward the abutting board so that one abutting board 1B can elastically be moved in the axial direction of the support sleeve 3 by means of the elastic body 4.  In a jack for head jamb constituted in this manner, provided is a change-over mechanism 6 so that the movable sleeve 5 can be freely changed from a state enabling to elastically move in its axial direction to the support sleeve 3 to a state enabling no elastic movement.
Patent JP-H04177693-A (JP)
Title: Semiconductor memory device
Inventor: KITAZAWA EIJI
IPC: G11C7/10
Filed: 1990-11-09
Abstract: PURPOSE:To enable load of a flash write buffer to be reduced by speeding up a shut-off timing of a transfer gate between bit lines at a sense amplifier side and a memory cell side at a flash write cycle than at a read cycle. CONSTITUTION:A pair of bit lines DS and anti DS at a sense amplifier and a pair of bit lines DC and anti DC of a side of a memory cell Q1, etc., are shut off by transistors(TR) Tr1 and Tr2 for bit line cut-off between these. These TR Tr1 and Tr2 are controlled by a first transfer gate control signal TGB which is applied to a selector 4 and a second transfer gate control signal TGA, a shut-off timing of the transfer gate is speeded up at a flash write cycle than at a read cycle, and load of a flash write buffer 3 is reduced, thus enabling flash write to be executed stably and readily using a small-scale flash write.
Patent JP-H11138259-A (JP)
Title: Underwater welding equipment
Inventor: KAMEI HIROMASA
IPC: B23K9/00
Filed: 1997-11-07
Abstract: PROBLEM TO BE SOLVED: To execute underwater welding with a pit water kept in underwater equipment such as a pit for used fuel store. SOLUTION: An underwater welding equipment 10 is equipped with a box equipment 20 having an opening facing a wall surface 3, a clamp 30 to support a new supporting frame 7 installed in a local dry type box 21 of the box equipment 20, a pair of TIG welding equipment installed in the local dry type box 21 for the welding of the new supporting frame 7 on the wall surface 3 and a water feeding/discharging nozzle 29 installed in the local dry type box 21.
Patent JP-H05121940-A (JP)
Title: Crystal oscillator module
Inventor: NOMURA KANICHI
IPC: H03B5/32
Filed: 1991-10-25
Abstract: PURPOSE:To obtain the crystal oscillation module whose volume is very small by using an area under the crystal oscillator as a container area accepting at least part of the thickness of the crystal oscillator. CONSTITUTION:With respect to an area occupied by a crystal oscillator 33 laid horizontally, that is, the height H of the crystal oscillator 33 and the width W orthogonal in the plane, a notch 39 whose area is not at least less than the area is formed onto a printed circuit board 31 and at least part of the crystal oscillator 33 is contained in the notch 31. Let the thickness of the printed circuit board 21 be tB, as the result of laying horizontally the crystal oscillator 33 in the notch 39, the height to be projected from the upper side of the printed circuit board 31 is reduced at least by the board thickness tB in the thickness (t) of the crystal oscillator 33 thereby reducing the thickness of a crystal oscillator module 30 after a product of the module 30 with a housing 40 covered thereon.
Patent JP-H10135722-A (JP)
Title: Portable radio equipment
Inventor: HAMADA TAKESHI
IPC: H04B1/38
Filed: 1996-10-31
Abstract: PROBLEM TO BE SOLVED: To provide a portable radio equipment that has an antenna not needing any telescopic action and is hardly broken. SOLUTION: In the portable radio equipment where a cover 11 is provided to the main body in an open/close enable way, an antenna 20 having a coil is provided inside the main body 10, a pipe antenna 28 is provided in the cover 11, a base end of the pipe antenna 28 is fitted to the main body 10, the cover is made turnable around the base end, the base end and the coil are coupled spacially, a transmission port 31 is provided to the cover 11, the transmission port 31 faces the tip of the pipe antenna 28, an end of the pipe antenna 28 is connected to a microphone 23 provided in the main body 10, and the antenna 20 is placed in the cover 11, then in the case of opening the cover 11, the antenna 20 is placed under the main body 10, the antenna 20 is far from the head of the user and no telescopic action is required for the antenna, and since the port 31 is provided to the cover 11,  the distance between the transmission port 31 and a reception section 12 is taken wide.
Patent JP-H09157389-A (JP)
Title: Synthesizing method for novel poly(l-leucine)
Inventor: MURAJI KIYOHIRO
IPC: A61L15/16
Filed: 1995-11-24
Abstract: PROBLEM TO BE SOLVED: To provide a process for synthesizing a poly(L-leucine) by irradiating the monomer with γ-rays, wherein the operation is simple and easy, the safety is high and, the 100% yield can be obtained within a short reaction time without using any initiator, additives and solvent.  
     SOLUTION: L-leucine-N-carboxylic anhydride is used as a starter, and this starter in a solid state is polymerized by irradiation with γ-rays to obtain a poly(L-leucine) represented by the formula (wherein n is 30-182). The dosage of γ-rays is generally suitably in the range of about 2.5 to 51.2kGy. The irradiation time is about 20min. More particularly, for example solid crystalline L- leucine-N-carboxylic anhydride is placed in a glass bottle, and irradiated with γ-rays in the above dosage in a vacuum of 10 -4 Torr to obtain a poly(L-leucine) of a 100% purity without the necessity for any other treatments. This poly(L- leucine) is useful as a skin covering material for the treatment of a burn. 
     COPYRIGHT: (C)1997,JPO
Patent JP-H08145448-A (JP)
Title: Air conditioned room with partition having air cleaner
Inventor: KOYANAGI YOSHIHIDE
IPC: F24F9/00
Filed: 1994-11-16
Abstract: PURPOSE: To enable air within partitions to be positively cleaned without increasing a capacity of a fan within an air cleaner by a method wherein an air conditioned room is constituted by the partitions storing the air cleaner therein. CONSTITUTION: An air conditioned room is constructed by a plurality of partitions 1 having an air blowing port 4 at an upper part thereof, an air suction port 2 at a side surface thereof and further having an air cleaner 3 therein to communicate with the air blowing port 4 and the air suction port 2. When a switch 12 is depressed to turn on a power supply, the air cleaner 3 installed within the partitions 1 is started to operate, a fan 6 is rotated to cause air to be sucked into the partitions through the air suction port 2, some particles are removed by a pre-filter 7 and some fine particles are also removed through an electrical dust cleaner 8 and finally gaseous contaminated substances are removed by a deodoring filter 9.  Cleaned air flows toward a ceiling through the air blowing port 4 and then an air curtain is formed at the upper surface of the partitions 1 and the lower surface of the ceiling and then air in the air conditioned room is cleaned under utilization of its circulating flow.
Patent JP-H05137917-A (JP)
Title: Strainer mechanism of liquid tank-type heat shock tester
Inventor: OSADA TAKESHI
IPC: B01D35/027
Filed: 1991-11-21
Abstract: PURPOSE:To smoothly test a heat shock by providing a strainer in the high- temp. tank and low-temp. tank as the filtration mechanism and furnishing a temp. sensor for controlling the temp. of a heating medium in the high-temp. strainer and a shutter mechanism in the low-temp. strainer. CONSTITUTION:A heater 2a is provided outside a high-temp. tank 1, an agitator 3a is furnished in the high-temp. tank, a wire-mesh strainer 4a provided with an opening for the passage of a sample basket at its upper part is furnished, and a temp. sensor 5a is set in the strainer 4a. Meanwhile, a heater 2b is provided outside a low-temp. tank 6, a cooler 7 and an agitator 3b are furnished in the low-temp. tank, a wire-mesh strainer 4b is set at the upper part, a temp. sensor 5b is provided in the strainer, and a shutter 8 is furnished on the opposite side of the agitator 3b. Consequently, the sample and dust dropped from the sample basket when a heat shock test is prepared or carried out are recovered by the strainer, the purifier is not clogged, and the failure of a pump is prevented.
Patent JP-2001121522-A (JP)
Title: Press molding machine for hydraulic mineral molded body
Inventor: MAESAKO HIROSHI
IPC: B28B11/10
Filed: 1999-10-27
Abstract: PROBLEM TO BE SOLVED: To provide a press molding machine for a hydraulic mineral molded body capable of manufacturing a product having a good surface appearance, and a quality of an edge part free from defects. SOLUTION: In a press molding machine of a hydraulic mineral molded body wherein a surface water content squeezed from a premolded body by pressing is dehydrated by a dehydrating means provided on a mold face of one side mold of top and bottom molds while the premolded body provided by premolding a hydraulic mineral molding material, is press-molded between the top and bottom molds, a water permeable material layer is provided by affixing along a mold surface of the other mold.
Patent JP-H10147714-A (JP)
Title: Resin composition
Inventor: HIRUTA SACHINO
IPC: C08L81/06
Filed: 1996-11-18
Abstract: PROBLEM TO BE SOLVED: To obtain a resin composition which has improved flowability and can give a molding having uniform appearance and improved weld strength, heat resistance and heat stability by mixing an aromatic polysulfone resin with a specified copolymer. SOLUTION: At least one aromatic vinyl monomer selected from among styrene, α-methylstyrene, p-t-butylstyrene, vinyltoluene and p-chlorostyrene in an amount of 1-99 pts.mol. is copolymerized with 99-1 pts.mol. maleimide monomer represented by formula I (where R is H or Cn H2n+1 ((n) is 1-4), a group of formula II or a group of formula III; P1 and P2 are each H, CH3 , C6 H5 , OH, OCH3 , Cl or COOH) and 0.01-20 pts.mol., per 100 pts.mol. of the total of these monomers, at least one organic acid anhydride monomer selected from among maleic anhydride, phthalic anhydride, fumaric anhydride, itaconic anhydride, etc., to obtain a copolymer having a weight-average molecular weight of 10,000-300,000. This copolymer of 1-40 pts.wt. is mixed with 99-60 pts.wt. aromatic polysulfone resin having a weight-average molecular weight of 10,000-50,000.