baber/WOPTO huggingface dataset:
Patent JP-H04365985-A (JP)
Title: Oil-free screw compressor
Inventor: TORIGOE HIROSHI
IPC: F04C18/16
Filed: 1991-06-12
Abstract: PURPOSE:To prevent degradation or peeling of coating of a rotor by forming a cooling gas supply route, one end of which forms a part of a discharging port and is released to a communication inhibited part between suction and discharge compression spaces of the rotor, and the other end of which is communicated to a cooling gas source, on a casing. CONSTITUTION:Male and female rotors 31 are stored on a bore 24 formed on a casing main body 21 in a compressor main body 10. By rotating the male and female rotors 31, compressed air is formed, and a gas is suctioned from a suction route 25, and after it is compressed, it is discharged from a discharging route 26. In the abovementioned structure, a cooling gas supply hole 51 is formed on the casing main body 21. The cooling gas supply hole 51 forms a part of a discharging port 28, and is released to a communication inhibited part between suction and discharging compression spaces, while the other end thereof is communicated to a cooling gas source. Thermal degradation or peeling of coating provided on the surfaces of the male and female rotors 31 due to high temperature gas is thus prevented without sacrificing compression function.
Patent JP-H01307433-A (JP)
Title: High-pressure-bubble type aerator
Inventor: FUJINAKA HIROSHI
IPC: B01F3/04
Filed: 1988-06-06
Abstract: PURPOSE:To obtain the title aerator capable of controlling the amt. of an intake air and further capable of sucking the seawater at a desired depth with a water suction hose by connecting a water suction control valve to an inlet branch pipe of an air sucking and bubbling fitting to control the water suction. CONSTITUTION:The water suction control valve 21 is fixed to the inlet branch pipe 12 of an air sucking and bubbling fitting. The water suction is controlled to control the actual pressure in the air suction pipe, and the amt. of an intake air can be controlled. The water suction hose 22 is further connected, the water suction port is fixed at a desired depth to suck water, and the water and air are circulated in a net fish preserve.
Patent JP-S5929461-A (JP)
Title: Manufacture of semiconductor device
Inventor: UEDA MASAHIKO
IPC: H01L21/28
Filed: 1982-08-10
Abstract: PURPOSE:To contrive improvement in the frequency characteristics and the degree of integration of the titled semiconductor device by a method wherein, using a metal electrode as a gate electrode, a gate electrode layer and a source and drain region is formed in a self-matching manner. CONSTITUTION:A silicon oxide film 12 is formed on a semiconductor substrate 11 and a silicon nitride film 13 is formed thereon. Then, a hole is provided by selectively removing said silicon nitride film 13 and the silicon oxide film 12. Subsequently, a silicon oxide film 14 is grown on the region having no silicon nitride film 13 by performing a thermal oxidization using the silicon nitride film 13 on the semiconductor substrate 11 as a mask. Then, a silicon oxide film 14 is grown on a non-active region using the silicon nitride film 13 as an oxidation mask, an ion is implanted without performing an additional process on the silicon nitride film and the like, and source and drain regions 15 and 16 are formed. Then, a thick silicon oxide film 14 alone located on the channel part and its circumference is removed using a pattern 17, and a gate oxide film 18 is newly grown on the region of the pattern 17 located on the exposed silicon substrate 11. Subsequently, the silicon nitride film 13 in the region of code 19 and the oxide film 12 located under the film 13 are removed in order to remove the electrode on the source and drain regions 15 and 16, and a metal is deposited in such a manner that it will make the angle which is almost vertical to the surface of the silicon substrate.
Patent JP-S6031373-A (JP)
Title: Video tape recorder
Inventor: MIZUKAMI MINEO
IPC: G11B20/00
Filed: 1983-07-30
Abstract: PURPOSE:To constitute inexpensively a filter means after frequency conversion by frequency-modulating a sound signal at a higher frequency than the designated frequency band and applying frequency modulation while subtracting a frequency different from each recording track. CONSTITUTION:A synthesis signal of sound frequency modulation signals of frequencies fLA' and fRA' is obtained by an adder 55. Frequency converters 63, 66 frequency-converted a sound signal by using a pilot signal having frequencies of fp1, fp2 in the oscillators 63a, 66a so as to obtain a signal of fLA'+ or -fp1, fp2 and a signal of fRA'+ or -fp1, fp2. The spurious wave produced at frequency conversion and having frequencies, e.g., fLA'+fp1, fRA'+fp1 or the like is located at a further high frequency band by setting the fLA' and fRA' to nearly 5MHz, allowing to simplify the filter means at the post-stage. Further, there is no difference of group delay characteristics between magnetic heads 2a, 2b or left and right channels, then no noise at changeover of the magnetic heads is caused.
Patent JP-S5570563-A (JP)
Title: Table dresser for grinding machine
Inventor: HARA SHICHIROU
IPC: B24B53/06
Filed: 1978-11-14
Abstract: PURPOSE: To prevent the interference between a grinding wheel and a dresser by lowering the dresser according to the downward stroke of the grinding head by a servocontrol unit actuated by signals sent from a grinding head position detector.  
     CONSTITUTION: A grinding head 14 is lowered to grind a work 10 fixed on a work table 7 with a grinding wheel 13. A servocontrol unit 26 lowers a dresser 22 corresponding to a signal sent from a grinding head position detector 20 according to the stroke of the grinding head 14 to prevent the interference between the grinding wheel 13 and the dresser 22. In dressing operation, the servocontrol unit and the detector 20 are disconnected with each other and the saddle 2 and the work table 7 are adjusted to bring the dresser 22 right under the grinding wheel 13, then the grinding wheel 13 is lowered to be dressed with the dresser 22. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H01307578-A (JP)
Title: Driving circuit for proportionating valve
Inventor: YAMAGISHI TOMOJI
IPC: F16K31/06
Filed: 1988-06-07
Abstract: PURPOSE:To improve the responding sensibility of a proportionating valve with respect to the opening setting signal by overlapping the alternating current signal having the frequency to which the proportionating valve is able to respond, on the opening setting signal. CONSTITUTION:A switching element 11 operates according to the result from the comparison of an opening setting signal St with a driving current (i). A proportionating valve PV is driven via said switching element 11. The alternating current signal Sa having the frequency to which the proportionating valve PV is able to respond is overlapped on the opening setting signal St. The movable spool of the proportionating valve PV may be constantly oscillated according to the magnitude of the opening angle conforming to the opening setting signal St and the amplitude of the alternating current signal Sa. The friction at the friction part existing between the movable spool and a fixed member may be only dynamical friction.
Patent JP-S62297981-A (JP)
Title: Binarization system for image
Inventor: MIYAGAWA MICHIAKI
IPC: H04N7/18
Filed: 1986-06-18
Abstract: PURPOSE:To always obtain a properly binarized threshold value by differentiating an image signal and deleting the density changing part according to the differentiated value of the image signal. CONSTITUTION:A image signal A is converted into the digital value for each picture element by an A/D converter 1. A differential binarization circuit 3 differentiates the image signal received from an image memory 2 and produces the density changing area signal by binarized threshold values LP and LN. A density changing part deleting circuit 4 produces an image signal by deleting the signal of a density changing area part out of the original image signal. A density histogram production circuit 5 produces a density histogram from said image signal. A binarized threshold value generating circuit 6 decides the binarized threshold value from said histogram. This threshold value is given from the memory 2. Thus it is possible to obtain a stable and accurate binarized image signal B.
Patent JP-S5568472-A (JP)
Title: Rack and pinion type steering gear device
Inventor: YOSHIDA SHINICHI
IPC: B62D3/12
Filed: 1978-11-13
Abstract: PURPOSE: To eliminate metal percussing noise at the time of running on the bad road in such a way that elastic ring is inserted between a cylinder bore and rack guide, the rack guide is buffered and supported.  
     CONSTITUTION: A rack guide element 10 is housed in free command of sliding in a cylinder bore 9 by inserting an O ring 16 on its annular groove 15. When running on the bad road, even if radial directional impact force is applied to the rack guide element 10 and the cylinder bore 9, both cannot contact directly each other by buffering action of the O ring 16. and likewise, since impact force in the direction to draw the rack guide element 10 near to a cover element 13 is absorbed by elasticity of the O ring 16 as well as friction between the O ring 16 and the cylinder bore 9, it eliminates the possibility of contacting the rack guide element 10 and the cover element 13 with impact. Thus, metal percussing noise can be eliminated when running on the bad road. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S622218-A (JP)
Title: Method and apparatus for producing core for optical fiber
Inventor: YAO YUUGO
IPC: G02B6/44
Filed: 1985-06-28
Abstract: PURPOSE:To make continuous and mass production of cores for optical fibers having high accuracy at a good yield from an inexpensive steel wire or metallic wire such as plated steel wire by plastically deforming successively a wire having a circular section. CONSTITUTION:A take-up stand 6 and a roll forming machine 3 are respectively rotationally driven at a prescribed speed and the wire W which has the circular section and is taken up on an un-winding stand 1 is un-wound while said wire is kept loaded with the prescribed back tension. The wire is successively passed through a die 2 and the machine 3 and is taken up on the stand 6. The wire W past the die 2 is plastically deformed to a regular quadrangular section having four edge lines. The deformed wire arrives at the machine 3. The wire W passing through the wire passage O formed by the respective circumferential surface of forming rolls 31 under synchronous rotation of the machine 3 is plastically worked successively to the wire W having the flower section of 8 pieces of petals by 8 lines of peaks.
Patent JP-S63303530-A (JP)
Title: Timing correcting circuit
Inventor: TOGASHI SHIGEKAZU
IPC: H03K5/01
Filed: 1987-06-04
Abstract: PURPOSE:To freely set the correction characteristic of a peak shift by adjusting the amplitude of the intermediate area frequency component of serial digital data. CONSTITUTION:The digital data of A are added to an intermediate area attenuator 1 having a first attenuating pole at the frequency of the 1/4 of a bit rate and the output signal of the attenuator 1 is added to an LPF2. Since the LPF2 has a linear roll off characteristic, the frequency spectrum distribution at a B point when random digital data are inputted is shown by the full line of Fig.2 and the data such as A' goes to B'. A waveform is obtained in which this is re-converted to a binary signal with a zero cross detecting device 3 and only an inverting edge easy to generate the peak shift of the input signal such as A' is moved to an anti-peak shift side such as C'. Consequently, by the characteristic of the attenuator 1, the correction characteristic of the peak shift can be freely set.
Patent JP-H04364667-A (JP)
Title: Method for erasing flaw in picture reader
Inventor: YUKANAMI MASAHIRO
IPC: H04N1/00
Filed: 1991-06-12
Abstract: PURPOSE:To eliminate production of a black stripe onto a read picture even when a flaw or the like is in existence on an original 4. CONSTITUTION:A read picture is obtained from a CCD 16 by radiation from a read light source 26. Then a liquid crystal shutter of an original holder 95 is closed to shut a read light 22. A flaw discrimination light 25 radiates from an obliquely downward direction of the original 4 in this state. Thus, a flaw discrimination signal is obtained from the CCD 16. A read picture signal is corrected for only a part with a flaw based on the flaw discrimination signal. Thus, black stripes caused resulting from the flaw of the original are erased.
Patent JP-H01313308-A (JP)
Title: Easily sinterable alpha silicon nitride powder
Inventor: NAKAJIMA MASAHIKO
IPC: C01B21/068
Filed: 1988-06-09
Abstract: PURPOSE:To obtain the title powder capable of providing a sintered body having high strength at high temp. by specifying an alpha silicon nitride mole fraction, specific surface area, surfacial oxygen content, and internal oxygen content. CONSTITUTION:The title silicon nitride powder has >=85% alpha silicon nitride mole fraction, >=7m<2>/g specific surface area, 0.3-0.6wt.% surfacial oxygen content, and 0.5-1.1% internal oxygen content. If the alpha silicon nitride mole fraction is <85% beta-columnar crystals having high aspect ratio are hardly obtd. resulting decrease of strength at high temp. because alpha-beta transition during sintering begins at a low temp. and the solubility of silicon nitride into a grain boundary phase formed by a sintering aid becomes insufficient. If the specific surface area is <7m<2>/g, the composition is hardly sinterable resulting inferior denseness. If the surfacial oxygen content is <0.3%, satisfactory denseness is not attained. If it is >0.6%, the improvement of the strength at high temp. is undesirable. If the internal oxygen content is <0.5%, satisfactory denseness is hardly obtd. because abnormal growth of beta columnar crystals generates sometimes. If it is >1.1%, the strength at high temp. decreases.
Patent JP-H09320363-A (JP)
Title: Transparent conductive circuit forming device
Inventor: SAKAMOTO JUNICHI
IPC: B41J2/01
Filed: 1996-06-03
Abstract: PROBLEM TO BE SOLVED: To provide a transparent conductive circuit forming device which does not require many processes, and can form a transparent conductive circuit of a low resistance at a relatively low temperature. SOLUTION: By discharging a transparent conductive ink 4 which is formed by dispersing ultramicroparticles formed of a transparent conductive material in a solvent, by using a discharge means 1, a transparent conductive circuit is pattern formed on a base plate 2. When a transparent conductive circuit is pattern formed by a transparent conductive ink including ultramicroparticles formed of an oxide type transparent conductive material, a transparent conductive circuit of a low resistance is formed by heat processing the transparent conductive circuit by heating the base plate 2.
Patent JP-S62299506-A (JP)
Title: Device for checking spinneret
Inventor: NAKAMOTO TOSHIO
IPC: D01D4/00
Filed: 1986-06-17
Abstract: PURPOSE:An inspection device capable of examining nozzle holes of spinneret having a spherical surface-shaped spinneret plate, equipped with a specific support stand, a supporting column, a shaking arm and a spinneret placing stand having a rotary means. CONSTITUTION:A support stand 3 capable of traveling in parallel with a plane a perpendicularly intersecting to an incidence axis 2 of a magnifying lens 1 is equipped with a support column 4. An arm 5 which perpendicularly intersects to the plane of the support stand 3 and can shake in parallel with a plane simultaneously moving with the support stand 3 is axially born on the support column 4. A spinneret placing stand 6 is attached to the tip of the shaking arm 5. The stand 6 is provided with a rotary means 7 and when a lug 7a thereof is rotated, a spinneret 8 is made ratatable around the central axis thereof through gears 7b and 7c, a bearing 7d, a thrust bearing 7e, etc.
Patent JP-S5473058-A (JP)
Title: Identifying method of optical fibers
Inventor: KAJIOKA HIROSHI
IPC: G02B6/44
Filed: 1977-11-21
Abstract: PURPOSE: To readily perform identification even in a dark room by partially applying coloring to optical fiber surface and entering white light.  
     CONSTITUTION: A coloring agent 5 such as making ink or the like is partially coated 2 to 3 m on the clad 32 surface of an optical fiber 3 and white light 2 is entered from one end by a light source 1. The monochromatic light 6 emitting out from the other end is discriminated with a detector (observer) 7. Then, this may be readily executed even for the optical fiber having already been laid and in addition the sure identification may be performed even in a dark room. Further the end face working, etc. of the core 31 are not applied and therefore the transmission loss of the optical fiber is not increased. This is suitable when applied to the bundle compresing bundling optical fibers. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S5567270-A (JP)
Title: Original reader
Inventor: OZAWA TAKASHI
IPC: H04N5/335
Filed: 1978-11-15
Abstract: PURPOSE: To simplify a driving circuit and prevent electric charge leak and electric by using a matrix circuit for the driving system of an image pickup element and using a floating capacity of a wiring part and the capacity of a non-reading part element as an accumulation capacity.  
     CONSTITUTION: Thin film photo detection elements P(1,1)∼P(n,m) constitute an nxm array as the whole, and elements P(i,1)∼P(i,m) have one electrodes connected to common wiring A-i, and elements P(1,j)∼P(n,j) have the other electrodes connected to common wiring B-i, thereby making a matrix constitution. When driver D-1 is turned on to apply a voltage to wiring A-1, other drivers are turned off, and wiring A is grounded, and read switches S-1∼S-m are turned off. Since capacities C-1∼C-m are combined capacities of the floating capacity, etc., and are larger than element capacities, voltage V of the driver and the bias voltage of element P become V approximately. Element P discharges electric charge due to light irradiation and accumulates it in capacity C. When switches S are turned on successibely, electric charge of capacities C is discharged successively to perform read. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H07323849-A (JP)
Title: Steering device of rack-pinion type
Inventor: KOHAMA MASAYUKI
IPC: F16H55/28
Filed: 1994-05-31
Abstract: PURPOSE:To provide a rack-pinion type steering device provided with a rack guide means capable of being lightened and made inexpensive and having the mechanical strength almost equivalent to that of a rack guide formed of a sintered metal. CONSTITUTION:A rack guide means 21 for slidably supporting a rack bar 8 is provided with a rack guid body 22 formed integrally with a plate-like member and a reinforcement body 23 provided separately from the rack guide body 22 to reinforce the same. The rack guide body 22 is provided with a recessed surface part 25 opposed to the back surface 24 of the rack bar 8 and a cylindrical part 27 extending integrally from the recessed surface part 25. The reinforcement body 23 is provided with a reinforcement part 31 attached to the inner part 29 of the rack guide body 22 to abut against the inner surface 30 of the recessed surface part 25 of the rack guide body 22, reinforce and support the recessed surface part 30.
Patent JP-H11341704-A (JP)
Title: Power supply device
Inventor: ENDO HIROTAKA
IPC: H02J13/00
Filed: 1998-05-22
Abstract: PROBLEM TO BE SOLVED: To provide a power supply device, to which a current is not required to be supplied at all times and which enables remote control reception for waiting with a capacitance device as a power supply source. SOLUTION: A power supply primary side switching means 1 which is openable of the primary side of a power supply circuit by an electrical means, a remote control light detecting sensor 2 which can receive and detect a remote control light signal generated by a remote control transmitter 30, a drive means 3 which holds the output signal of the remote control light detecting sensor 2 for a certain time, when the sensor 2 detects the light signal, and furthermore, drives the power supply primary side switching means 1 and a capacitance device 4 which is charged while the power supply primary side switching means 1 is closed and in which a certain power is stored, even in a state in which the power supply primary side switching means 1 is opened are provided.  The capacitance device 4 enables the output of the remote control light detecting sensor 2, while the power supply primary side switching means 1 is opened, and furthermore, supplied an initial drive power to the power supply primary side switching means 1 for making a transfer from the opened state to the closed state.
Patent JP-H10319497-A (JP)
Title: Camera base
Inventor: USUI JUICHI
IPC: G03B17/56
Filed: 1997-05-15
Abstract: PROBLEM TO BE SOLVED: To hardly cause the deviation of the direction and the inclination of a camera at the time of fixing the pedestal of the camera at a camera base main body and to facilitate the cleaning, maintenance and inspection of the inside of the camera base main body. SOLUTION: As for the camera base constituted of the camera base main body 10, the pedestal 20 provided so as to be freely attached to/detached from the main body 10 and a tightening mechanism 40 to tighten and fix the pedestal 20 to the camera base main body 10; the camera base main body 10 is constituted of a pair of base members 11 respectively having opposed surfaces, and the base members 11 are pivotally supported by a pivotally supporting part provided at one end of the opposed surfaces so as to freely open and close, and a nearly cylindrical housing part whose upper part is opened and where the pedestal 20 is attached is provided at the nearly center part of the camera base main body 10, and the pedestal 20 is attachably/detachably attached at the housing part.  The tightening mechanism 40 is constituted of a tightening part 41 and an operating tool 42, and the base members 11 are relatively attached and detached by the operating tool 42, so that the pedestal 20 is tightened and fixed at the inside of the housing part.
Patent JP-S623086-A (JP)
Inventor: MITSUOKA YOSHIAKI
IPC: C04B40/04
Filed: 1985-06-25
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-S5767148-A (JP)
Title: Sintered roller chain bush containing coil
Inventor: SATOU KOU
IPC: C22C38/20
Filed: 1980-10-09
Abstract: PURPOSE: To obtain a sintered oil-contg. roller chain bush with high strength high hardness, superior lubricity and superior wear resistance by adding a specified percentage of Cu, Cr, P and C to Fe, providing a specified oil content, and forming a surface hardened layer.  
     CONSTITUTION: A product having a composition consisting of by wt., 1W7% Cu, >1.5W2.5% Cr, 0.1W1% P, 0.5W1% C and the balance Fe with inevitable impurities is manufactured. The oil content is regulated to 5W35vol%, and a surface hardened layer is formed. Since a powder metallurgical method is applicable, the manufacturing cost can be reduced. 
     COPYRIGHT: (C)1982,JPO&Japio