baber/WOPTO huggingface dataset:
Patent JP-H08179234-A (JP)
Title: Rotary polygon mirror for light beam scanner and driving device therefor
Inventor: YASUNAGA TAKAHIRO
IPC: G02B26/12
Filed: 1994-12-21
Abstract: PURPOSE: To provide a rotary polygon mirror and a driving device therefor of a light beam scanner constituted so that the holding force of superposed ratary polygon mirrors is sufficiently transmitted to the reflection surface of the rotary polygon mirror, the relief of the distortion of the reflection surface generated by the holding force is uniformized and high profile accuracy is obtained when the plural rotary polygon mirror are superposed and the grinding processing thereof is executed. CONSTITUTION: This rotary polygon mirror 31 of light beam scanner is provided with a rotary polygon mirror main body having the reflection surface 32 for deflecting a light beam and a concave part 34 where side wall parts 35 being almost in parallel with the respective reflection surfaces 32 are formed at least one end surface 33 of the rotary polygon mirror main body. Besides, this rotary polygon mirror driving device is provided with a driving shaft part for transmitting driving to the rotary polygon mirror main body and a driving shaft whose shape is almost identical to the concave part 34 and which is provided with surfaces being almost in parallel with the respective reflection surfaces 32, and constituted so that the driving is transmitted to the rotary polygon mirror 31 by engaging a convex part with the concave part 34.
Patent JP-H11150103-A (JP)
Title: Method fro generating contact hole
Inventor: OKUNI MITSUHIRO
IPC: H01L21/3065
Filed: 1997-11-19
Abstract: PROBLEM TO BE SOLVED: To obtain a contact hole having satisfactory cross-sectional shape, even at forming of a fine contact hole whose aspect rate is high on an insulating film by the use of a resist pattern whose film thickness is thin. SOLUTION: After a resist film 13 has been accumulated on an insulating film 12 formed on a conductive film 11, a pattern exposure is selectively processed to the resist film 13. Then, silyl making agent 15 is supplied to the surface of the pattern exposure-processed resist film 13, so that a silyl making layer 16 can be selectively formed in a region except a contact hole formation region at the surface part of the resist film 13. Dry etching is carried out on the resist film 13, using the silyl making film 16 as a mask so that a resist pattern 17 constituted of the resist film 13 is formed. Etching is carried out to the insulating film 12 by using the resist parterre 17 as a mask, so that a contact hole is formed in an insulating film 12.
Patent JP-2000145180-A (JP)
Title: Ventilation system of toilet booth
Inventor: ITO TAKESHI
IPC: E04H1/12
Filed: 1998-11-09
Abstract: PROBLEM TO BE SOLVED: To apply a simple ventilation system, in which the bad order of a toilet booth is exhausted efficiently without a diffusion while easily carrying out the execution of works without much changing the type of conventional toilet unit and a space is saved. SOLUTION: A piping unit 19 has a hollow rectangular sectional shaped exhaust chamber 27 being unified with the lower section of a deck 19a and being long in the horizontal direction in the lower section of the deck 19a. The exhaust chamber 27 communicates with slitty shaped exhaust ports 29 being formed between the front section of the deck 19a and the upper section of a front plate 19b and being long in the horizontal direction. An exhaust pipe 31 communicating with an exhaust duct is connected to the side section of the exhaust chamber 27. The exhaust pipe 31 is joined with the exhaust duct communicating with a vent hole formed for ventilating the whole unit toilet.  Air on the outside of the toilet booth 11 is entered into the booth from an opening between the lower section of an open-close door and a floor, introduced forcibly into the exhaust chamber 27 from the slitty shaped exhaust port 29 formed to the piping unit 19, and exhausted to the outside of a building through the exhaust duct 1 through the exhaust pipe 31 from the exhaust chamber 27.
Patent JP-H01159972-A (JP)
Title: Lithium secondary battery
Inventor: KOSHIBA NOBUHARU
IPC: H01M4/48
Filed: 1987-12-16
Abstract: PURPOSE:To enhance the resistance to overdischarge by adding a certain amount of gamma-butyrolactone(gammaBL) to the conventional mixture of PC-DME as a solvent for electrolyte. CONSTITUTION:A solvent for electrolyte is prepared by adding 0.5-10wt.% gamma-butyrolactone(gammaBL) to a mixture liquid of PC-DME. This addition of gammaBL to PC-DME suppresses generation of gas to a great extent, and the battery will present little switching. This addition of gamma-BL involves risk of ill influence on the battery to require utmost care, and in case the gammaBL is used in lieu of PC as electrolyte, for ex, no gas will be generated at the time of charging/ discharging, that can however be carried out scarcely in the degree of several cycles. If the amount of gammaBL addition is no more than 10wt.% of the total solvent, gas generation at the time of overdischarge is suppressed to a great extent without ill influence upon charging/discharging, and even after eventual overdischarge, stable charging/discharging characteristics are assured.
Patent JP-H03177934-A (JP)
Title: Semiconductor integrated circuit
Inventor: OKUHARA YASUFUMI
IPC: G06F11/22
Filed: 1989-12-06
Abstract: PURPOSE:To keep a constant state for the output of an output circuit regardless of the output state of an internal circuit by providing an output control means which sets the output of the output circuit at a constant state with an output control signal. CONSTITUTION:All signal lines led to an output control gate 6 from a control circuit 2 are set at 'H' with application of a power supply. Under such conditions, an output signal of an 'L' level is applied to an output control terminal 5. Thus an output terminal 4 is set at an 'H' level regardless of the output of the circuit 2. Therefore the output state of an output circuit 3 can be instantaneously set at a fixed level with application of a signal of an 'L' level to the terminal 5 when the electrical characteristic of the circuit 3 is measured in an inspecting process. Thus the inspecting time is shortened together with improvement of the inspecting efficiency.
Patent JP-H07215908-A (JP)
Title: Production of antitumor compound
Inventor: MASUDA KAZUAKI
IPC: C07C46/00
Filed: 1994-12-21
Abstract: PURPOSE:To provide a method for producing 2,3,6-trimethoxynaphthazarin which is an active ingredient for antitumor agents. CONSTITUTION:2,3,6-Trichloronaphthazarin and sodium methylate are heated under reflux in the presence of methanol to react these compounds and the resultant reaction product is subjected to solvent extraction and chromatographic treatment to provide the objective 2,3,6-trimethoxynaphthazarin. The chromatographic treatment is carried out in either of absorption chromatography, gel filtration chromatography and ion exchange chromatography. 2,3,6-trichloronaphthazarin which is a etarting raw material is obtained by heating and condensing 2,3-dichloromaleic anhydride with 2- chloro-1,4-hydroquinone in the presence of anhydrous aluminum chloride and sodium chloride at 160-250 deg.C, preferably 200-220 deg.C.
Patent JP-H08181895-A (JP)
Title: Shoulder pad
Inventor: ENDO HIDETOSHI
IPC: G03B17/56
Filed: 1994-12-21
Abstract: PURPOSE: To provide a shoulder pad capable of stably holding a video camera, etc., on the shoulder as keeping a superior fitting feeling by making the collapse quantity of the whole pad member nearly uniform. CONSTITUTION: A rib shape projecting part 3 installed internally in the upper part of an elastic pad member 2 is provided on the lower side of a core material 1, and the elastic deformation of the upper part in which the lower part by thickness T of the pad member 2 is left is constrained by the projecting part 3. Therefore, the collapse quantity extending over the whole area of the pad member 2 is made nearly uniform.
Patent JP-H02164739-A (JP)
Title: Cooling device of optical fiber
Inventor: TAKIMOTO HIROAKI
IPC: C03C25/10
Filed: 1988-12-19
Abstract: PURPOSE:To improve the cooling efficiency of optical fiber by providing rotating blades around the optical fiber heated and drawn, and moving the air cooled enough in the vicinity of the inner peripheral wall of casing to the optical fiber side in the center of casing by the revolution of the blades. CONSTITUTION:The casing 32 which the optical fiber 14 heated and drawn is passed through and the cooling gas 33 is introduced into, supporting members 38... which is located in the inside of the casing 32 and is allowed to be freely rotatable around the optical fiber 14 in the casing 32, and blades 53... which are fixed to the supporting members 38... and move the gas 33 in the vicinity of the inner peripheral wall of the casing 32 to the side of the optical fiber 14 in the center of the casing 32 while the supporting members 38... are rotated are provided. The cooling means for cooling the gas 33 in the casing 32, such as a flow passage 35 for circulating cooling liquid 34, is preferably provided in the casing 32.
Patent JP-H03179077-A (JP)
Title: Friction material composition and preparation of friction material therefrom
Inventor: SAKATA TOICHI
IPC: F16D69/02
Filed: 1989-12-07
Abstract: PURPOSE:To prepare the title compsn. allowing no fading phenomenon to occur under a high loading at a high temp. and having excellent frictional properties by compounding a mixture contg. a fibrous material, a binder, a friction- controlling agent, and benzotriazole with a copper flake having a specified aspect ratio. CONSTITUTION:A compsn. contg. a fibrous material (e.g. glass fiber), a binder (pref. a composite binder comprising a phenolic resin, etc., and a crosslinkable rubber), a friction-controlling agent (e.g. calcium carbonate, graphite, or carbon black), and benzotriazole is compounded with a copper flake (having an aspect ratio of 1-50 and a ratio of the thickness to the minor diameter of 1:3 or lower) in an amt. of 2-40wt.% (based on the total compsn.) to give the title compsn. The compsn. is performed, heated, and press molded to give a friction material used in an automotive clutch facing, brake lining, etc.
Patent JP-H10150378-A (JP)
Title: Frequency stabilizing circuit
Inventor: NOBUSAWA HIDEAKI
IPC: H03J7/06
Filed: 1996-11-15
Abstract: PROBLEM TO BE SOLVED: To prevent a voltage controlled oscillator from being controlled to oscillate an erroneous frequency due to reduction in a reception electric field strength by storing frequency difference information between an intermediate frequency signal and a frequency of a comparison signal from a reference oscillator as just preceding frequency in formation when an amplitude of the intermediate frequency signal is reduced more than a specified amplitude. SOLUTION: A level measurement device 4 always measures an amplitude of an intermediate frequency signal S2 denoting a reception electric field level and converts the measured amplitude into a DC voltage S5 and inputs the voltage to a comparator 5. The comparator 5 compares the DC voltage S5 with a reference voltage S4 from a reference power supply 14 to provide an output of a low gate control level S6 to gates 6, 8 so as to shut an amplified intermediate frequency signal S3 to be given to a frequency comparator section 10 and a comparison signal S8 from a reference oscillator 7 when the DC voltage S5 is lower than the reference voltage S4. Thus, while the reception electric field level is low, the oscillated frequency from a voltage controlled oscillator 13 is not fluctuated and the oscillated frequency is prevented from converging to an erroneous frequency.
Patent JP-2000152562-A (JP)
Title: Dynamo-electric machine
Inventor: TAKAHASHI KENJI
IPC: H02K9/18
Filed: 1998-11-10
Abstract: PROBLEM TO BE SOLVED: To cool a dynamo-electric machine with high efficiency, by putting the structure of the heat conductive pipe constituting a heat exchanger in such constitution as to change the flow. SOLUTION: A cooling fan 5 attached to a rotor 3 is arranged so as to lead cooling wind to the interior of a dynamo-electric machine and cool a rotor 8 and a stator 9 by rotating together with a rotor 3, and the core of the rotor 8 and the stator 9 is made of a laminate for reduction of loss. Then, the cooling wind circulates within the dynamo-electric machine, being cooled by the outside air, by means of outside air cooling fans 1, in a heat-exchanger 10 constituted of many pieces of heat conductive pipes, but fins 14 are installed, in such direction that the air flows in opposite direction from a partition plate 12, at the external surface of the heat conductive pipe 11 of the heat exchanger on rear flow side.  Hereby, the circulating air exchanges its heat with the outside cooling air within the heat conductive pipe without air being biased, drawing a streamline so that it may part from the partition plate, so it can raise the cooling performance of the dynamo-electric machine at large.
Patent JP-H04189005-A (JP)
Title: Pwm amplifier
Inventor: TAURA KENICHI
IPC: H03F3/217
Filed: 1990-11-22
Abstract: PURPOSE:To reduce the signal distortion when the PWM amplifier is used for amplifying an audio signal especially by selecting a proper simultaneous OFF period at an output stage so as to keep a high efficiency and a stable operation and cancelling the distortion generated in the output stage through the use of a sound signal deformed in advance. CONSTITUTION:An operational amplifier IC3 forms an adder adding an input signal from an input terminal 100 and a distortion compensation voltage given to an output of an operational amplifier IC2 and an operational amplifier IC4 amplifies the output inversely and gives the result to an output terminal 101. When an output of the operational amplifier IC2 is zero, that is, the output is at a ground level, the input output characteristic of a distortion compensation circuit 8 is linear. A transistor(TR) Q101 acts like a 1st switching means to interrupt the input to the amplifier IC. when an input signal voltage from the terminal 100 is lower than Vb1+Vth1 and a TR Q102 acts like a 2nd switching means to interrupt the input to the amplifier IC1 when the input signal voltage from the terminal 100 is higher than -Vb1-Vth2.
Patent JP-H04188712-A (JP)
Title: Manufacture of metallized film capacitor
Inventor: WATANABE HISAYOSHI
IPC: H01G4/18
Filed: 1990-11-21
Abstract: PURPOSE:To improve resistance by employing as a dielectric substance a plastic film where a thin polymer layer of low thermal deformation temperature is formed on at least one surface thereof. CONSTITUTION:A plastic film 1 is employed as a dielectric substance for manufacture of a title capacitor, on at least one surface of which film a thin polymer layer 2 of low thermal deformation temperature is formed. More specifically, a polymer layer 2 of low thermal deformation temperature such as aliphatic polyerethane, aliphatic polyester, and polyacrylic acid, etc., is previously formed on one surface of a polyethylene terephthalate film 1, on which an aluminum deposited electrode 4 is provided. Hereby, corrosion on the size of minus potential of the capacitor is reduced. Further, the high polymer layer 2 is low in the thermal deformation temperature and is an aliphatic group and is therefore satisfactory in thermal decomposition, scattering of the deposited electrode can be facilitated upon self recovery action and voltage resistance can be improved. Hereby, there are ensured the improvement of moisture resistance and with stand voltage.
Patent JP-H08153889-A (JP)
Title: Composite optical apparatus and manufacture thereof
Inventor: TANIGUCHI TADASHI
IPC: G11B7/12
Filed: 1994-11-29
Abstract: PURPOSE: To prevent fragments of an optical component, adhesive and substrate in the manufacturing process of a composite optical apparatus, form adhering to the surface of the optical component. CONSTITUTION: When a laser coupler is manufactured by bonding a microprism 2 onto a photodiode IC 1 through adhesive 10, a microprism bar 2 previously provided with a film 11 of a hydrophilic substance on the light incident face or the light reflecting face thereof is bonded onto the photodiode IC wafer through the adhesive 10. The microprism bar 2, the adhesive 10 and the photodiode IC wafer are then diced collectively by means of a dicer while jetting water to the dicing part and the blade.
Patent JP-H05157090-A (JP)
Title: Turbo-molecular pump
Inventor: ASHIDA OSAMU
IPC: F04D19/04
Filed: 1991-12-03
Abstract: PURPOSE:To prevent a situation that a fixed blade deformed due to dynamic lift generated at the time of entry into the atmosphere is brought into contact with a rotary blade to break a turbine. CONSTITUTION:A stepped portion 2e is formed in an inner circumferential supporter 2a of a rotary blade group 2. An axial distance d3 between an inner circumferential supporter 4a of a fixed blade group 4 and the inner circumferential supporter 2a in the stepped portion 2e, which faces to the inner circumferential supporter 4a on a suction port 5 side, is set shorter than an axial distance d2 between a suction port end 4d on the inner circumferential side of a fixed blade 4c and an exhaust port end 2d on the inner circumferential side of a rotary blade 2c.
Patent JP-H02169898-A (JP)
Title: Delivery quantity measuring system for delivering machine
Inventor: TAMATE HITOSHI
IPC: F04D27/00
Filed: 1988-12-20
Abstract: PURPOSE:To improve the delivery quantity measured value by calculating the delivery quantity with the preset arithmetic equation specified based on the predetermined characteristics of a delivering machine according to the driving quantity of the delivering machine and the pressure difference before and after the delivery and using the value as the delivery quantity of the delivering machine. CONSTITUTION:The pressure difference (static pressure) DELTAP between the pressure on the suction side A of a blower 1 controlled by a speed changing device 2 for its rotating speed and the pressure P2 on the discharge side B is detected by a pressure difference detector 5. The rotating speed N of the blower 1 specified by the speed changing device 2 and the static pressure DELTAP from the detector 5 are inputted to a wind quantity arithmetic unit 6, and the wind quantity Q is calculated by a preset equation. The high-precision wind quantity measured value not affected by the wind speed is obtained at a low cost.
Patent JP-H04188730-A (JP)
Title: Semiconductor device
Inventor: NAKAMURA MITSUYOSHI
IPC: H01L21/027
Filed: 1990-11-21
Abstract: PURPOSE:To stably obtain a through hole having the size as designed with high accuracy by stacking nitride films having a low transmissivity of light for an interlayer film to be used as a multilayer interconnection. CONSTITUTION:In the photomechanical process to form a through hole, a photoresist film 9 is exposed using a photomask 10, but the incident light 1 is transmitted through only the photoresist film 9 but does not pass through an interlayer nitride film 8. Accordingly, random reflection is not generated and only the part 9A of the photoresist film 9 is exposed. After the development process, a photoresist pattern 9D having the size (a) is formed and a through hole 11A having the size (a) is formed by the selective removal. In the case a second aluminum wiring is formed, a margin for overlapping with the through hole 11A is kept in the design value. Thereby, the through hole 11A having the size specified by the design can be stably obtained with high accuracy.
Patent JP-H04188080-A (JP)
Title: Coaxial probe needle
Inventor: SOEDA SHINYA
IPC: H01L21/66
Filed: 1990-11-21
Abstract: PURPOSE:To obtain a coaxial probe needle which can be repaired easily to the coaxial probe needle in its former state when it is impaired, by separating the fore end part of the probe needle from a guard part. CONSTITUTION:In this contrivance, a probe needle can be separated easily from a probe needle contact part 2 by pulling the fore end of the probe needle 1 by a pincette or the like. When the probe needle is to be fitted, the fore end part of the probe needle is inserted from a hole in the center of an insulating part and a sure contact can be attained in the center of a hand-drum-shaped part of the probe needle contact part 2. On the occasion, a core serves as a stopper for insertion of the probe needle and prevents the probe needle 1 entering the depth further, and thereby a prescribed length of the fore end of the probe needle is attained. When the probe needle is impaired, according to this constitution, it can be repaired to an original coaxial probe needle very inexpensively by replacing only the fore end of the probe needle.
Patent JP-H09139778-A (JP)
Title: Cordless facsimile equipment
Inventor: SUGIYAMA HIROYUKI
IPC: H04N1/00
Filed: 1995-11-13
Abstract: PROBLEM TO BE SOLVED: To realize a voice response function and a FAX signal discrimination function by using a digital signal processor for FAX MODEM and processing properly a program software for a microcomputer in the processor. SOLUTION: A CNG signal detection function by a FAX MODEM DSP section 41 discriminates a CNG signal sent from a telephone line to a FAX slave set 30 via a master set 10 to start reception of the FAX signal by the FAX slave set 30. Furthermore, a consecutive non-voice detection function by the FAX MODEM DSP section 41 detects a consecutive silence state of a call sent to the FAX slave set 30 via the master set 10 to start the reception of a FAX signal. The voice response function and the FAX signal discrimination function are realized by using the FAX MODEM DSP section 41 provided in the FAX slave set 30 so as to allow the FAX MODEM DSP section 41 to process properly a microcomputer program software.
Patent JP-H01163585-A (JP)
Title: Defrostation control method of refrigeration cycle
Inventor: HONDA ISAO
IPC: F25D21/06
Filed: 1987-12-17
Abstract: PURPOSE: To complete defrosting in a short time, by performing a unit time operation of a compressor at a specified time interval during the defrosting operation by a heater to minimize thermal effect on the inside of a storage to be cooled. CONSTITUTION: Upon the start of a defrosting operation, the generation of heat begins with a glass tube heater 6 while a compressor during the refrigeration cycle is switched over to an instantaneous operation of a unit time (t) at a specified interval T. The intermittent instantaneous operation of the compressor is continued until the sensed temperature of a defrosting sensor 10 reaches a point at which it is judged that frost on the surface of a liquid reservoir tank 4 melts so that a refrigerant warmed at a lower part of an evaporator 3 near the glass tube heater 6 can be moved to a part separated from the glass tube heater 6 on the side of an outlet of the evaporator 3 without lowering the evaporation temperature.  Thus, heat energy of the glass tube heater 6 can be transmitted from inside a piping to the upper part of the evaporator 3 and the liquid reservoir tank 4 and the moved refrigerant in the piping serves as new heat source at the part involved to melt frost from inside the piping thereby enabling the removal of frost at a part separated from the heater in a short time.