baber/WOPTO huggingface dataset:
Patent JP-H1161465-A (JP)
Title: Control of component concentration of hydrogen peroxide solution containing ferric ion
Inventor: SHIMIZU MASAKI
IPC: C23G1/08
Filed: 1997-08-20
Abstract: PROBLEM TO BE SOLVED: To provide a method which enables efficient control of the component concn. of a pickling solution at the time of continuously pickling stainless steel. SOLUTION: In this method, at the time of analyzing the concn. of both hydrogen peroxide and ferric iron ions in a stainless steel pickling solution consisting of hydrogen peroxide, an inorganic acid(s) and ferric ions, the concn. of hydrogen peroxide and ferric ions are analyzed with an automatic titration analyzer by using potassium permanganate as an analytical reagent for hydrogen peroxide, by and also, by using a reducing agent as an analytical reagent for the total concn. of hydrogen peroxide and ferric ions. Thus, each of the concn. of hydrogen peroxide and ferric ions is separately analyzed to perform the concn. control of hydrogen peroxide and ferric ions.
Patent JP-2001050204-A (JP)
Title: Timer valve
Inventor: KASHIWAGI MASAO
IPC: F16K3/24
Filed: 1999-08-06
Abstract: PROBLEM TO BE SOLVED: To delay starting timing of an actuator, switching timing of a pilot controlled directional control valve, etc. SOLUTION: A valve body (s) is provided with a first port 10, a second port 11 and a drain port 12, and a spool (s) is incorporated in the valve body (b) so that it slides freely there. One end of the spool (s) is in a face-to-face relation with one pilot room 13 connected to the first port 10 while the other end with the other pilot room 14 connected to the first port 10 via an orifice 23. A spring 17 is disposed between the spool (s) and the pilot room 14, and the force of the spring 17 interrupts connection between the first port 10 and the second port 11 and connects the second port 11 and the drain port 13 when the spool (s) is in the normal position. When pressure is led to the first port 10, the spool (s) moves against the force of the spring 17 and connects the first port 10 and the second port 11. After a lapse of the time equal to timing delay according to opening of the orifice 23, the spool (s) is returned to the normal position by the force of the spring 17.
Patent JP-H1168731-A (JP)
Title: Information communication method
Inventor: ASHINO YUUKI
IPC: H04L9/08
Filed: 1997-08-20
Abstract: PROBLEM TO BE SOLVED: To always update a key for concealing/deciphering and to make that key indeterminate by concealing a transfer key for transmission message while using an initial key for transmission message, transferring concealed original sentence information for transmission message and the transfer key for transmission message to the other side and afterwards setting this transfer key for transmission message as a new initial key for transmission message. SOLUTION: The initial key for transmission message to be used for concealing/ deciphering at a communication means 2 and an initial key for reply to be used for concealing/deciphering at a communication means 2 are preset as the same key Pa. At the communication means 1, the original message information for transmission message is concealed while using the initial key Pa for transmission message and a newly generated transfer key Pb for transmission message, the transfer key Pb for transmission message is concealed while using the initial key Pa for transmission message and after the concealed original sentence information for transmission message and transfer key for transmission message are transferred to the communication means 2, the unconcealed transfer key Pb for transmission message is set as a new initial key for transmission message.  At the communication means 2, the concealed transfer key for transmission message from the communication means 1 is deciphered while using the initial key Pa for reply.
Patent JP-H0878792-A (JP)
Title: Alignment of embedded strip and outside strip in semiconductor optical constitutional element
Inventor: REON GORUDOSUTAN
IPC: G02B6/13
Filed: 1995-08-31
Abstract: PROBLEM TO BE SOLVED: To improve efficiency by aligning a laser-embedding strip and the outer strip of a modulator in a semiconductor optical constituent element, when the strips are coupled optically in series. SOLUTION: A wafer 2, which is formed by laminating a semiconductor optical component element in a longitudinal direction DL, transverse direction DT and vertical direction DV, is formed. The wafer 2 is composed of an embedding strip segment SL and an outer strip segment SM, which are continuously extended in the DL direction, containing an embedding strip and an outer strip SM, and they are aligned along the DL direction with each other. A partition stripe 10 is formed by etching for the purpose of forming a boundary by aligning the both strips, a starting part 12 of the outer strip RM and the embedding strip is formed by a first etching, the outer strip RM is protected, the embedding strip main body is formed by a second etching, and the embedding strip is confined laterally. As a result, the efficiency of a photon-integrated circuit can be improved.
Patent JP-H0677570-A (JP)
Title: Optical fiber amplifier
Inventor: SHIMIZU MAKOTO
IPC: H01S3/17
Filed: 1992-08-24
Abstract: PURPOSE:To obtain a new optical fiber amplifier, in which an optical fiber coupler for multiplexing excitation light and signal light with each other is not used. CONSTITUTION:In an optical fiber amplifier of a structure, wherein ions having an induced emission transition are contained in at least a core part and population inversion is formed by light excitation to provide a fiber for optical amplification use having an optical amplification action in a specified wavelength, an optical circulator 1 having four ports 1-1, 1-2, 1-3 and 1-4 is used and two fibers for signal input use and signal output use are respectively connected to the ports at two places, which are not optically coupled with each other, of the oscillator 1. A fiber for amplification use is connected to one side of the left ports of the circulator 1, the other end of the fiber for amplification use is connected to the end part of a laser module pigtail fiber coupled optically with a laser, signal light is reflected on the connection part 66 the fiber for amplification use with the laser module pigtail fiber and a filter to make a laser beam pass through is inserted in the connection part.
Patent JP-H0777743-A (JP)
Title: Photograph production method and photographing information recording camera used therefore
Inventor: TOKUDA KANJI
IPC: G03D15/00
Filed: 1993-09-08
Abstract: PURPOSE:To prevent information on photographing from being parted by a notch. CONSTITUTION:First and second recording heads 26 and 27 are provided side by side on the film path of a frame part 28 prescribing the exposing aperture 28a of a camera and formed so as to be a little shorter than the half of the length in the feeding direction of a film of the photographic frame of a full size. The gap having a dimension equivalent to a notch forming area 18d is formed between the first and second bar codes 31 and 33 formed by the recording heads 26 and 27. Thus, when the notch is formed on a photographic film 18, respective bar codes 31 and 33 are prevented from being separated by the notch.
Patent JP-H1061628-A (JP)
Title: Rivet
Inventor: HATANAKA KAZUNORI
IPC: F16B19/06
Filed: 1996-08-26
Abstract: PROBLEM TO BE SOLVED: To easily insert a shaft part, and obtain a stable collapsed shape at the time of fastening so as to keep high fastening strength by forming a taper part gradually decreased in the diameter on the forward end of the shaft part of a rivet main body and a conical projecting part substantially coinciding with the recessed shape of a forming snap on the forward end of the taper part. SOLUTION: A rivet main body 17 includes a shaft part 3 with a required length having a semicircular or trapezoidal head part 2, wherein a taper part 18 gradually decreased in diameter toward the tip is formed on the forward end of the shaft part 3, and further a conical projecting part 19 substantially coinciding with the shape of a recessed part 9a of a forming snap 9 is formed on the tip of the taper part 18. In the case of fastening plates 6, 7 by the rivet main body 17, the head part 2 of the rivet main body 17 is pressed by a forming snap 8, the tip of the shaft part 3 projected from the rivet holes 4, 5 is pressurized as shown by an arrow by another snap 9 to collapse the shaft part 3, thereby fastening the plates 6, 7. Accordingly, inclination of the rivet main body 17 can be prevented.
Patent JP-H0347347-A (JP)
Title: Sealing unit for corner joint of building
Inventor: YADA YUKIHIKO
IPC: E04B1/684
Filed: 1989-08-30
Abstract: PURPOSE:To improve sealing efficiency and, at the same time, to reduce loss of management cost by providing an inner joint member and an outer joint member each having a pair of sealing tongues, and by providing therewith double sealing structure to a corner joint. CONSTITUTION:A backup member 1 is provided on the inside of a corner joint 6. An inner joint member 2 having a pair of first sealing tongues 15... that make elastic, close touching to each of the parts 7 and 7 to be sealed erected on both sides at right and left of the corner joint 6 is fixed to the backup member 1. An outer joint member 3 having second sealing tongues 18... that make elastic, close touching, on the outside of each of the first sealing tongues 15..., to both the to-be-sealed parts 7 and 7 is fixed to the inner joint member 2. Double sealing is then made for the corner joint 6 with both the joint members 2 and 3. Thereby sealing can be assured without changing dimensions for outer walls 5 and 5.
Patent JP-H0787363-A (JP)
Title: Picture processing circuit
Inventor: TANAKA HIDEKO
IPC: H04N5/21
Filed: 1993-09-09
Abstract: PURPOSE:To obtain a picture processing circuit whose noise is low and circuit constitution is simple by constituting the luminance adjustment circuit of an NTSC signal by means of analog circuits. CONSTITUTION:A first comparator 2 outputs only a signal whose level is higher than a black level signal VBLK among the NTSC signals as a picture signal VSIG. A second comparator 3 outputs only a signal whose level is lower than the signal VBLK as a synchronizing signal VSYNC. A subtracter 4 outputs a voltage signal VA whose level is slightly lower than the signal VBLK. A third comparator 5 outputs a brightness adjustment signal VBR and a first amplifier 7 amplifies a signal VBR and outputs an offset signal VOFT. A first addition circuit 8 adds the signal VOFT to the signal VSIG so as to output it. A second amplifier 9 amplifies the output signal of the circuit 8 and adjusts contrast. A second addition circuit 11 adds the signal VSYNC to the output of the amplifier 9 and outputs a signal where the contrast of white and black is emphasized.
Patent JP-H0387750-A (JP)
Title: Electrophotographic sensitive body
Inventor: KAWAHARA TATSURO
IPC: G03G5/06
Filed: 1989-08-30
Abstract: PURPOSE:To obtain an electrophotographic sensitive body having sufficiently practicable high sensitivity and durability by incorporating a specified pentamethinecyanine compound in a photosensitive layer. CONSTITUTION:The photosensitive layer contains the pentamethinecyanine compound represented by formula I in which each of R<1> and R<2> is H, an optionally substituted hydrocarbon or heterocyclic group, independent of each other; Z is an O or S atom; each of R<3> - R<6> is same as R<1> except H; and X<-> is an anion, thus permitting the obtained electrophotographic sensitive body to be enhanced in durability and sensitivity and accordingly, to be used widely for copying machines and the like.
Patent JP-H0965785-A (JP)
Title: Float
Inventor: SUGAWARA NOBUO
IPC: A01K61/00
Filed: 1995-08-31
Abstract: PROBLEM TO BE SOLVED: To provide a float to be placed on the surface of a river or a lake after plants are stuck into it, enabling the easy construction, keeping the landscape of nature in an excellent state and well considered for water purification and ecosystem by covering a foam with a material having an adequate strength and elasticity. SOLUTION: A foam is covered with a polyurethane elastomer having an adequate strength and elasticity, etc. Further, floats 3 have connecting means 7, 9 for connecting both floats to each other, and a cover 5 for preventing the passage of roots of a plant is attached below the float 3 with a specified space from the lower surface of the float 3.
Patent JP-2000052575-A (JP)
Title: Dot line printer
Inventor: OMAE KOJI
IPC: B41J2/245
Filed: 1998-08-07
Abstract: PROBLEM TO BE SOLVED: To prevent a printing quality from being lowered by thermal influences and a life of a hammer attraction face from being shortened by mounting a member of a high thermal conductivity between heat radiation fins to connect the heat radiation fins set to an upper and a lower hammer banks. SOLUTION: A printing hammer is constituted essentially of heat radiation fins 8 for letting out the heat generated from coils 7. A cooling wind 9 is blown to the heat radiation fins 8 thereby cooling the fins. An elastic member 12 of a high thermal conductivity is mounted between heat radiation fins 8 of an upper and a lower hammer banks. Accordingly, dust, foreign matter or the like is prevented from invading the printing hammer and a yoke part along with the cooling wind 9 and a heat radiation efficiency between adjacent heat radiation fins is improved. The elastic member 12 acts as a conventional dust protector and moreover prevents the heat of the separately mounted heat radiation fins from being partially concentrated, thereby scattering the heat to each heat radiation fin and improving the heat radiation efficiency.  Decrease in printing quality and reduction in life of a hammer attraction face or the like can be restricted. The printing quality is improved at all times.
Patent JP-H0967581-A (JP)
Title: Method for removing hydrogen chloride from waste plastics containing vinyl chloride
Inventor: MIKATA NOBUYUKI
IPC: B09B3/00
Filed: 1995-08-31
Abstract: PROBLEM TO BE SOLVED: To provide a method for simply removing hydrogen chloride from a waste plastics contg. polyvinyl chloride with high percentage dehydrochlorination by mixing a waste plastics with a heating medium and directly heating and melting the mixture. SOLUTION: In a method for converting a waste plastics contg. polyvinyl chloride to an oil, in the step of melting and extruding a waste plastics by means of an extruder, the waste plastics is mixed with a high-boiling oil, and the mixture is melted and dehydrochlorinated by means of the extruder. The high-boiling oil may be a wax oil or the like and is pref. a fraction having a b.p. of 300 deg.C or above. Specifically, e.g. the waste plastics and the wax are mixed with each other by means of an agitator in a charging hopper. The mixing ratio of the waste plastics to the wax is pref. 1:3 or more. The wax used is a solid or liq. wax produced in a system for conversion to an oil. The temp. of the wax fed into the hopper is pref. 150 deg.C or below. However, it may be fed at 350 deg.C if a suitable measure is taken to prevent ignition and cope with hydrogen chloride.
Patent JP-2001048104-A (JP)
Title: Method and apparatus for bagging and packaging item
Inventor: MATSUMOTO MASUO
IPC: B65B5/06
Filed: 1999-08-06
Abstract: PROBLEM TO BE SOLVED: To automatically insert both items and an instruction manual into a box successfully and reduce both facility cost and running cost. SOLUTION: Containers (a) are arranged in a row and transferred by a conveyor to a boxing position (b). A folded box (c) is transferred to the boxing position (b) in its fallen state while being raised and formed by the conveyor. In cooperation with this operation, the instruction manual (d) is mounted at the boxing position (b) by a taking-out means. The container (a) is tumbled on about half part of the instruction manual (d) and pressed by the laterally tumbling means.  Then, the residual half part of the instruction manual (d) exposed out of the head section of the container (a) laterally tumbled is folded up at the position near the head section of the container (a) and subsequently the upper half section of the instruction manual (d) is bent onto the upper surface of the container (a) laterally tumbled and both the instruction manual (d) and the lateral fallen container (a) are pushed together into the box (c) by the inserting means while they are being brought into close contact with each other and after this operation a lid of the box (c) is folded and the box is transferred to a next stage.
Patent JP-H0556950-A (JP)
Title: Magnetic resonance imaging device
Inventor: MORI KAZUO
IPC: A61B5/055
Filed: 1991-09-04
Abstract: PURPOSE:To adjust the position of an RF coil in a short period of time and to obtain a uniform image free from unequal sensitivity by providing a sensor which emits and detects light at either of the inside of a stand and an RF coil and a marker which reflects the light from the sensor at the other. CONSTITUTION:The RF coil 1 for the head is stuck with the marker 2 formed by coating a 'Mylar(R)' film with an aluminum film on the outer peripheral surface in its axial central part. This marker 2 reflects IR rays. The patient P mounted with this RF coil 1 is advanced into the hollow part 4 of the stand 3. A sensor 5 which emits and detects the directional IR ray is installed to an inside wall 3a facing the hollow part 4 of the stand 3. The sensor 5 is disposed with an IR emitting diode 7 and IR receiving diode 8 which are connected adjacent to each other to a PC board 6. The IR emitting diode 7 emits the directional IR ray to the hollow part 4 from the position where the sensor 5 is installed. The IR ray is received by the IR receiving diode 8 when this light is reflected by the marker 2 coming to the same central position of the magnetic field as the central position of the magnetic field of the sensor 5.
Patent JP-H02110276-A (JP)
Title: Door for refrigerator
Inventor: YAMAZAKI SUSUMU
IPC: F25D23/02
Filed: 1989-09-01
Abstract: PURPOSE:To make a door excellent in designing and facilitate the absorpticn of allowances upon production by attaching a corner piece so as to cover the abutting part of an extruding frame by the covering part of the corner piece. CONSTITUTION:A lower corner piece 18 is provided with a stopper mounting part 18b, for example, a retaining part 18c, engaged with the retained part 19a at the side of a hinge 19, a covering part 18d covering the abutting part E of an extruding frame 13, a pin receiving part 18e and the like integrally. Accordingly, the abutting part E of the extruding grame 13 is covered by the covering part 18d and will never be exposed to the outside of a refrigerator. On the other hand, the covering part 18d is provided with a pawl 18d', retained to the extruding frame, at the tip end thereof to ensure the mounting of a lower pin receiver 18c at a given position. Further, a retaining relation between the retaining part 18c and the retained part 19a is determined substantially by the combination of a pin 19b and the pin receiving part 18e, retained to the pin 19b, and the pawl 18d', of the covering part 18d at the tip end is positioned by retaining it to the extruding frame 13 whereby the engaging relation therebetween may be ensured further.
Patent JP-S60117927-A (JP)
Title: Synthesizer receiver
Inventor: TOMIYASU ATSUSHI
IPC: H04B1/16
Filed: 1983-11-30
Abstract: PURPOSE:To avoid the disturbance of a local oscillation signal of one of two reception systems to the other system by performing a tuning action of one of both systems so that the local oscillation frequency avoids the vicinity of the reception frequency of the other reception system. CONSTITUTION:A reception system 3a makes the frequency of a local oscillation circuit VCO6 cause the variance of a frequency band including the reception frequency of a reception system 3b. A control circuit 16 is connected to PLL circuits 8 and 14 and monitors the local oscillation frequency of the system 3a and the reception frequency of the system 3b. At the same time, the circuit 16 turns on and off switching circuits 10 and 11 so that the local oscillation frequency of the system 3a avoids a tuning action of the system 3a within a prescribed range equivalent to the vicinity of the frequency of the reception systems. Thus the supply voltages VO and VL to be given to the VCO6 and a loop filter 9 are turned on and off. In such a way, a tuning action is possible with no disturbance given from the local oscillation signal of one of both reception systems to the reception of the other reception system.
Patent JP-H0389734-A (JP)
Title: Intra-device self supervisory circuit
Inventor: OZAKI HIROICHI
IPC: H04J3/14
Filed: 1989-09-01
Abstract: PURPOSE:To specify a package where a fault occurs by feeding back a signal on an output-side, into which a specific pattern is inserted, to the pattern reference circuit of an input part and simultaneously supervising both an input signal and the output signal. CONSTITUTION:A specific pattern insertion circuit 8, a reference pattern generation circuit 10 and the specific pattern reference circuit 11 in the package 2 constitute a means which feeds back the signal on the output-side, into which the specific pattern is inserted, to the pattern reference circuit of the input part and which recognizes the coincidence of the three of the specific pattern of the input signal, that of feedback signal and a reference pattern. Then, the coincidence of the specific pattern of the signal inputted from package 1, the specific pattern of the signal fed back from the output-side of the package 2 and the reference pattern from the reference pattern generation circuit is recognized and the judgement of normality/abnormality is executed. Thus, the package where the fault occurs can be specified.
Patent JP-H0549182-A (JP)
Title: Charger for battery set
Inventor: MARUYAMA TOSHIO
IPC: H02J7/04
Filed: 1991-08-08
Abstract: PURPOSE:To realize good charging operation through a charger from which a power supply capacitor is eliminated. CONSTITUTION:AC voltage of a commercial power supply 1 is stepped down through a transformer 5 and full-wave rectified through a rectifier 6. Thus rectified voltage is applied through an inductance 27, a circulation diode 26, and a switching element 30 onto a battery set 29 and the instantaneous voltage thereof is detected through a detecting circuit A. When the instantaneous value of the rectified voltage varies and the voltage at point (a) exceeds the internal reference voltage of an inverter 12, the rectified voltage exceeds the output voltage of the set battery 29 to cause turn ON of the element 30 thus feeding a charging current to the set battery 29. When the charging current increases the voltage across a shunt resistor 24 also increases and when it exceeds a reference voltage created by resistors 15, 16, output of a comparator 25 is activated to cause turn OFF of the element 30 thus interrupting charging current supply to the set battery 29. When the operation is repeated, a pulsating charge current flows into the set battery 29 and the pulse current is synchronized with the rectified voltage.