baber/WOPTO huggingface dataset:
Patent JP-H07106813-A (JP)
Title: Vswr matching member and waveguide provided with the vswr matching member
Inventor: IIDA MITSUMOTO
IPC: H01P5/02
Filed: 1993-10-06
Abstract: PURPOSE:To obtain an excellent VSWR characteristic as a whole even when the accuracy of dimension of the matching plates is rough by providing a couple of matching plates to the VSWR matching member. CONSTITUTION:A rectangular waveguide 2 is provided to a outer circumferential wall of a circular waveguide 1 and a couple of VSWR matching plates 3 are provided to an inner circumferential wall of the waveguide 1. The matching plates 3 of the same shape are provided in the inside of the waveguide 1 and arranged symmetrically in a direction in parallel with the electric field by using a center line of the waveguide 1 as the axis of symmetry. As a result, since the matching plates 3 are continuous in parallel with the guide axis, a total reflecting coefficient of a reflecting wave in existence in the inside of the waveguide is an integration of sum of vectors of reflecting coefficients at various locations of the matching plates 3 in the direction of the guide axis when the reflecting coefficient is cancelled as the method for impedance matching. Thus, even when the size accuracy is rough at any point of the matching plates 3, excellent impedance matching is obtained in the entire matching plates 3.
Patent JP-S62110340-A (JP)
Title: Space propagation light communication system
Inventor: NAKAMURA KEIJI
IPC: H04B10/00
Filed: 1985-11-08
Abstract: PURPOSE:To reduce the crosstalk by splitting an optical repeater into optical transmitter/reception equipment groups each coupled optically one-to-one to each of optical transmission/reception equipments arranged splittingly in a space so as to improve the directivity of each optical transmission/reception equipment at the optical repeater. CONSTITUTION:The center axis of beam and the spread angle of each of the optical transmission/reception equipments R1-Rn are set to the direction and value required for the communication with only one opposed among transceiver groups T1-Tn and one-to-one optical coupling with the corresponding optical transceiver is applied. A transmission direction control circuit 14 discriminates the sequence of the appearance point of time between the optical input from the corresponding optical transceiver T1 to a photoelectric transducing circuit 11 and the electric input from a bus line B to an electrooptic transducing circuit 12, makes only an input effective which comes earlier so as to control the direction of transmission. As a result, the bypass of transmission/reception in the optical transmission/reception equipments R1-Rn and the loopback transmission to the corresponding optical transceivers T1-Tn during signal transmission are inhibited.
Patent JP-H07106693-A (JP)
Title: Fabrication of semiconductor laser element
Inventor: UEKI NOBUAKI
IPC: H01S5/00
Filed: 1993-10-06
Abstract: PURPOSE:To lower the threshold current furthermore and to stabilize the transverse mode by realizing a so-called an actual refractive index type waveguide wherein a layer having low refractive index is arranged directly on the opposite sides of an active region. CONSTITUTION:A clad layer 2 of first conductivity type, waveguide layers 6, 7 having a quantum well layer 5 in the center, and a cover layer 7 for the waveguide layer 6 are laminated on a semiconductor substrate 1 of first conductivity type. Impurities of first conductivity type are then diffused from above the cover layer 7 except a part thereof to crystallize the waveguide layers 6, 7 and the quantum well layer 5 mixedly. Subsequently, a clad layer 9 of second conductivity type, a cap layer 10 of second conductivity type, and a contact layer 20 of second conductivity type are formed on the cover layer 7.
Patent JP-S62112210-A (JP)
Title: Magnetic recording medium
Inventor: MORITA HIROSHI
IPC: G11B5/66
Filed: 1985-11-11
Abstract: PURPOSE:To obtain the titled high-density magnetic recording medium having excellent durability and resistance to environment without deteriorating the electromagnetic transducing characteristic by interposing a silicon oxide layer between a substrate metallic layer and a substrate to improve the adhesion of the substrate metallic layer. CONSTITUTION:An aluminum oxide layer 4, the substrate metallic layer 8, a metallic magnetic layer 10, and a protective and lubricative layer 12 are successively formed on the aluminum alloy substrate 2 to obtain the magnetic recording medium. In the medium, the layer 6 consisting essentially of silicon oxide is interposed between the aluminum oxide layer 4 and the substrate metallic layer 8. A mutual diffusion layer is formed by SiO2 and Al2O3 in the underlying layer and the SiO2 layer is firmly stuck on the layer 4. Besides, the substrate metallic layer 8 of titanium, germanium, 'Permalloy(R)', etc., is firmly stuck on SiO2, and the substrate metallic layer 8 is not released from the substrate.
Patent JP-H0990119-A (JP)
Title: Inorganic color filter and its production
Inventor: NAKAMURA RYUICHI
IPC: C03C4/02
Filed: 1995-09-28
Abstract: PROBLEM TO BE SOLVED: To provide an inorg. color filter which compensates the spectral transmittance of a conventional red or green filter material and does not cause any problems about transparency or thermal stability by specifying the material. SOLUTION: This inorg. color filter is produced by using a material essentially comprising a glass which is transparent in a visible region and has a low melting point, chromium ion and a blue pigment/iron oxide pigment as a green/red filter material. The glass colored with chromium into yellow has high transmittance in 550 to 700nm long wavelength region but shows rapid decrease in transmittance in a shorter wavelength region. Therefore, even when the glass material is used with combination of a blue pigment, a green filter without being impaired in transparency can be obtd. Or, by combining the glass with an iron oxide pigment, transmittance in a short wavelength region of the iron oxide pigment can be lowered to improve optical characteristics of a red filter.
Patent JP-H0298873-A (JP)
Title: Optical disk
Inventor: IIZUKA HIROYUKI
IPC: G11B20/12
Filed: 1988-10-05
Abstract: PURPOSE:To shorten the time up to reproduction by recording arrangement information on a data area and a lead-out area in one subchannel of the lead-in area and recording control information including at least arrangement information in other subchannels. CONSTITUTION:There are the lead-in area 1, the data area 2 where a musical sound signal is recorded, and the lead-out area 3 which indicates the end of the optical disk on the disk from the inner periphery to the outer periphery. When the arrangement information is recorded in R-W channels of the lead-in area 1 as control information, the same data with a table-of-contents TOC as the arrangement information in the data area 2 are recorded in the R-W channels. Thus, the arrangement information is also recorded repeated in the lead-in area, and consequently the arrangement information is obtained immediately wherever in the lead-in area the information is reproduced. Consequently, the time up to the disk reproduction is shortened.
Patent JP-H0790512-A (JP)
Title: Sliding member made of fe-base sintered alloy infiltrated with copper, for compressor excellent in wear resistance
Inventor: KOBAYASHI KOJI
IPC: B22F3/26
Filed: 1993-09-13
Abstract: PURPOSE:To provide a sliding member excellent in wear resistance, as a structural member for compressors, such as rotary compressor and scroll compressor. CONSTITUTION:This sliding member for compressor is constituted of an Fe-base sintered alloy infiltrated with copper. The alloy can be prepared by infiltrating Cu or Cu alloy into an Fe-base sintered alloy which has 5-20% porosity and also has a composition containing, as dispersed phase forming components, 2-20%, by weight, of either or both of Mo-Cr-(Ni, Co) alloy and Mo-Fe-(Ni, Co, Cr) alloy, containing, as matrix forming components, 1-3% C, 0.3-1.5% Si, 8.5-16% Cr, 1-5% Mo, 0.4-3% V, and 0.1-2% Mn, and having the balance Fe with inevitable impurities and further containing, if necessary, 0.1-2% Ni and/or 0.1-8% Co.
Patent JP-H0590582-A (JP)
Title: Electrode formation method
Inventor: SAMOTO NORIHIKO
IPC: H01L29/417
Filed: 1991-09-30
Abstract: PURPOSE:To form a low resistance fine electrode having Y-shaped profile which causes no deterioration of withstand voltage. CONSTITUTION:A semi-insulation semiconductor layer 13 grows on a high concentration semiconductor layer 14 where an ohmic electrode of a field effect transistor is formed. The semi-insulation semiconductor layer 13 is subjected to anisotropic etching so that it may be formed in the shape of overcut where only the high concentration semiconductor layer 14 is etched by a selection etching process. Then, after an electrode metal 17 is deposited on the top of a substrate, an unnecessary portion of the electrode metal 17 and the semi- insulation semiconductor layer 14 are eliminated. This construction makes it possible to form a low resistance Y-profiled fine electrode which does not cause deterioration of withstand voltage between the electrodes.
Patent JP-H0992402-A (JP)
Title: Changeover switch type connector and blade spring body for connector
Inventor: ISHIZUKA SHINICHI
IPC: H01R13/703
Filed: 1995-09-28
Abstract: PROBLEM TO BE SOLVED: To easily change over the connection condition among circuits in a short time by a connector connected to three circuits. SOLUTION: The first terminal part 11 and the second terminal part 12 of a socket 1 are respectively connected to a first circuit and a second circuit, and the core contact 21 of a plug 2 is connected to a third circuit. When the core contact 21 of the plug 2 is not inserted in the socket 1, the second contact part 14 of the second terminal part 12 is made to abut on the first contact part 13 of the first terminal part 11 by the energizing force of a blade spring body 30, so that the first circuit is connected to the second circuit.  When the core contact 21 is inserted, the tip part of the core contact 21 is made to abut on the contact part C of the second terminal part 12, the second circuit is connected to the third circuit by separating the second contact part 14 from the first contact part 13 against the energizing force of the blade spring body 30, so that the connection between the first circuit and the second circuit is released.
Patent JP-S60143786-A (JP)
Title: Non-linear element interposed resistance measurement system
Inventor: IKEDA SABUROU
IPC: G01R27/08
Filed: 1983-12-29
Abstract: PURPOSE:To enable the simplification of a circuit, by using a constant voltage power source. CONSTITUTION:Constant voltage power sources E1, E2, when a switch SW0 is opened, are supplied to a comparator C through a buffer amplifier A1. On the other hand, the comparison signal output of an output apparatus OUT1 is supplied to the comparator C through a D/A converter DAC. Herein, a microprocessor CPU monitors the output of the comparator C through an input apparatus IN and, if the voltages of the constant voltage source are not coincided with comparison signal voltage, said microprocessor CPU changes the comparison signal output of the output apparatus OUT1 and allows memory MM to store digital values of said voltages as voltages of the constant voltage sources E1, E2 when both voltages are coincided. Next, the switch SW0 is closed and a switch SW1 is changed over to apply the constant voltage sources E1, E2 to an article to be measured. In this case, measurement is performed in the similar way as that when the switch SW0 is opened and the digital values at the time of application of the constant voltage sources E1, E2 are stored in the memory MM. Internal resistance Z0 is also preliminarily stored in the memory MM and the microprocessor CPU performs the operation processing of these data to calculate resistance Z to be measured and a measured value is outputted through an output apparatus OUT2.
Patent JP-2000086007-A (JP)
Title: Paper conveying device
Inventor: YASUDA KEISUKE
IPC: B41J13/02
Filed: 1998-09-04
Abstract: PROBLEM TO BE SOLVED: To maintain high conveying accuracy and prevent image degradation by providing a paper carrier roller in an opening part for sucking paper. SOLUTION: Suction is started from the state of (a), and imagerecorded recording paper 3 is sucked to the platen member 8 side (b). The recording paper 3 is further sucked to adhere closely to the platen member 8 (c). At this time, the recording paper 3 also adheres closely to a suction carrier roller 22, and adherent force of an arrow mark (f) works. Accordingly, when the suction carrier roller 22 is rotated in this state, the recording paper 3 overcomes resistance during suction and is conveyed by the suction carrier roller 22. The suction force of the recording paper 3 is thus changed into conveying force of the suction carrier roller 22, so that conveying force is heightened in proportion to suction force even in the case of holding the recording paper 3 flat on the platen member 8.  The recording paper can therefore be conveyed always with high accuracy, and high quality image recording can be performed without showing light and shade or the like by the contact of the recording paper 3 with a recording head 1.
Patent JP-S62110172-A (JP)
Title: Build-in test circuit
Inventor: TOKUNAGA MASAHIDE
IPC: G06F11/273
Filed: 1985-11-08
Abstract: PURPOSE:To obtain a test circuit enabling an inexpensive and highly reliable operation test, by comparing other analogue output on the basis of the analogue output by a comparator. CONSTITUTION:An analogue output generating circuit consists of latches 2X, 2Y and D/A converters 3X, 3Y. The latches 2X, 2Y respectively store the data from a processor 1 to send the same to the D/A converters 3X, 3Y. The D/A converters 3X, 3Y respectively output analogue outputs 10X, 10Y corresponding to the data from the latches 2X, 2Y. These two analogue outputs 10X, 10Y are guided to the comparator provided to a build-in test circuit 12 to be compared with each other and a comparing signal 11 is returned to the processor 1 through a discrete input circuit 7. The output voltage range of the D/A converter 3Y is changed with respect to the output voltage of the D/A converter 3X to perform a test at several points and the presence of abnormality is displayed on a display circuit 8.
Patent JP-H03117121-A (JP)
Title: Mobile communication channel switching control method
Inventor: TAMURA HOZUMI
IPC: H04W76/00
Filed: 1989-09-29
Abstract: PURPOSE:To simultaneously improve a desired wave-to-thermal noise power ratio(CNR) and a desired-to-interference wave power ratio(CIR) by deciding the communication quality from a value of the CNR and a value of the CIR measured by a mobile station or a radio base station, and switching a channel in the course of communication to the radio base station concerned, in the case other satisfactory radio base station exists. CONSTITUTION:In radio base stations 4, 5 and 6, a receiving level Xi and an interference level Yi are measured, and Ei (Xi, Yi) is calculated. The radio base stations 5, 6 reports its arithmetic value to a radio circuit control station 7 at every prescribed time. The radio base station 4 compares the received arithmetic value of the radio base station with its own arithmetic value, and in the case it is larger, the radio base station 4 selects Ei of MAX, and switches a channel to its radio zone.
Patent JP-H04133975-A (JP)
Title: Continuous bobbin setter
Inventor: KAWAKAMI OSAMU
IPC: B65H67/06
Filed: 1990-09-25
Abstract: PURPOSE:To dispense with a mutual shifting mechanism for a continuous bobbin setter and with a large width of the setter, and obtain a simply arranged setter by inserting the main body of the setter perpendicularly to the center line between a fine spinning machine and a winder, and fixing the body for set-treating. CONSTITUTION:When a sensor 16, such as photocell or the like, detects fine spinning bobbins 7 not existing in front of a pusher 14 on the inlet side of a main body 6, a stopper 11 is released and the bobbin 7 is advanced toward the pusher 14, and the four spinning bobbins 7 is detected arriving by the sensor 16. On confirming the arrival of the four bobbins 7, the bobbins 7 are pushed into the main body 6 by an air cylinder 15 pushing the pusher 14. The bobbins 7 set-treated from the outlet side of the main body 6, are pushed out all together in a row of four at the same time onto an outlet side discharge conveyor 17 and transferred on it, and sent immediately to a winder 22 side. When this operation is repeated mutually by main bodies 5, 6, the set-treated bobbins 7 are transferred to the winder 22 one after another and stopped in front of a sensor 18 when detected.
Patent JP-H1096934-A (JP)
Title: Liquid crystal display element and its production
Inventor: YAMADA KATSUO
IPC: G09F9/35
Filed: 1996-09-24
Abstract: PROBLEM TO BE SOLVED: To prevent image display defects, such as display unevenness on color irregularity, occurring in the variations in the screen of an inter-substrate spacing by mixing and spraying spacing holding members of at least two kinds of grain size distributions varying in average values as the spacing holding members for substrates to each other. SOLUTION: Respective electrodes 3, 4 of a first electrode substrate 7 successively laminated with striped first electrodes 3 and oriented films 5 on an insulative substrate 1, such as glass substrate or artificial quartz substrate and a second electrode substrate 8 successively laminated with striped second electrodes 4 and oriented films 6 on an insulative substrate 2 are arranged so as to intersect orthogonally with each other. The spacer materials 9 having two kinds of the grain size distributions varying in the average grain size are evenly arranged in the spacing between the first electrode substrate 7 and the second electrode substrate 8, i.e., a cell gap without agglomeration. A liquid crystal compsn. 10 is sealed between such electrode substrates 7 and 8 and, further, polarizing plates 11, 13 are arranged on the outside surfaces of the electrode substrates 7, 8.
Patent JP-2001077303-A (JP)
Title: Semiconductor module
Inventor: OKUMURA NAOHISA
IPC: H01L25/11
Filed: 1999-09-06
Abstract: PROBLEM TO BE SOLVED: To obtain a semiconductor module which is improved in assembling efficiency without having any adverse effect upon the high-density mounting of laminated semiconductor devices. SOLUTION: A semiconductor module is provided with a mounting substrate 30 on which a plurality of semiconductor devices 10 and 20 having rectangular shapes in their top views, and a plurality of external terminals 11a and 11b led out of the facing two sides of the devices 10 and 20 are mounted in a laminated state. The substrate 30 carries a plurality of pads 31 arranged in the dame direction as the arranging direction of the terminals 11a and 11b, and part of the pads 31 is constituted for selecting chip for selecting the semiconductor devices 10 and 20.  In addition, the semiconductor devices 10 and 20 are stacked upon another in such as way that the external terminals 11a and 11b of the devices 10 and 20 are connected to the pads 31. the semiconductor devices are laminated upon another in such a way that one of the devices is shifted from the other to one side of the arranging direction of the terminals 11a and 11b. Of the pads 31, in addition, at least those which are constituted for selecting chip are independently formed at every semiconductor device.
Patent JP-2001071630-A (JP)
Title: Ink jet recording polyurethane sheet and its application
Inventor: CHIBA TAKASHI
IPC: B41M5/00
Filed: 1999-09-06
Abstract: PROBLEM TO BE SOLVED: To obtain an ink jet recording sheet suitable for both indoor and outdoor uses and having a fast ink absorbing speed, small bleeding, good printing image, excellent water resistance, light resistance and scuff resistance against rain, wind and light particularly necessary in the case of outdoor application, and excellent color developability in the case of irradiating it with the light. SOLUTION: In the ink jet recording sheet, a support made of a water absorbable polyurethane having 40 to 150 wt.% of water absorbing capability is an ink receiving layer, and the polyurethane is a composition made of an alicyclic polyisocyanate as a raw material. The ink jet recording sheet can be used as a decorative sheet, advertising sheet and a building sheet made of a sheet printed by an ink jet type.
Patent JP-H09160543-A (JP)
Title: Electronic percussion instrument
Inventor: IKEMOTO SHUNICHI
IPC: G10H1/053
Filed: 1996-09-02
Abstract: PROBLEM TO BE SOLVED: To obtain a very expressive performance using an electronic percussion instrument having a plurality of heads. SOLUTION: Sensors 10 to 16 transduce the percussion strength to a plurality of heads into electric signals. Envelope detecting parts 18 to 24 detect the envelopes of the electric signals from the sensors 10 to 16. A CPU 26 detects the strength of percussion based on the envelopes. When an operating part 32 is operated the CPU 26 sets thresholds for determining whether or not the heads have been percussed to different values for the different heads. The CPU 26 compares the detected strength of percussion with the thresholds to determine for every head whether or not a musical sound signal corresponding to the head should be produced. If the CPU 26 judges to produce a musical sound signal, a sound source produces the musical sound signal corresponding to the detected strength of percussion.
Patent JP-H1081951-A (JP)
Title: Recording medium, its production and information recording and reproducing device using the recording medium
Inventor: KAWASAKI TAKEHIKO
IPC: G11B9/14
Filed: 1996-09-03
Abstract: PROBLEM TO BE SOLVED: To developing an excellent recording medium for an information recording and reproducing device by a scanning prove microscope system by forming a lower electrode composed of fine gold single crystals on a substrate and a recording layer composed of a ferroelectric substance thereon. SOLUTION: The surface of a substrate 3 is brought into contact with an aq. soln. of a gold complex composed of gold halid such as gold iodine, gold bromide, gold chloride or the like, and by the decomposition of the gold complex by the cooling and volatilization of the saturated aq. soln., the use of a reducing agen or the like, a planar gold single crystal layer 1 having >=1μm particle size is precipitated. Next, an information recording medium layer 2 composed of a ferroelectric substance small in reactivity with the lower electrode of gold, such as PbTiO3 , Bi4 Ti3 O12 or the like is formed thereon to produce a recording medium for an information recording and reproducing device is which a scanning prove microscope is utilized.  The surface of the recording medium is scanned by a prove constituted of a prove 5 and a cantilever 6, and information integrated into the recording medium is detected as the displacement of the cantilever.
Patent JP-H0196681-A (JP)
Title: Cleaning device for image forming device
Inventor: SATO TSUMUTOSHI
IPC: G03G21/10
Filed: 1987-10-08
Abstract: PURPOSE:To improve cleaning performance for residual toner with simple constitution by specifying the specific volume resistivity of carrier particles and the dielectric constant of toner particles. CONSTITUTION:The cleaning device 28 of the image forming device removes toner remaining on a carrier 4 after a toner image formed on the latent image carrier 4 is transferred to a transfer material. The specific volume resistivity of the carrier particles forming the magnetic brush of the cleaning device is set to <=10<10>OMEGA.cm and the dielectric constant of the toner particles is set to <=3.7. In this case, the lower volume resistivity of the carriers provides more advantages, but when the resistivity is too low, the frictional electrostatic charging between carriers and toner on a sleeve 31 become harder to occur and the cleaning efficiency for the residual toner by the frictional electrostatic charging of the carriers decreases. Consequently, high cleaning effect is obtained for a long period by using low-resistance carriers.