baber/WOPTO huggingface dataset:
Patent JP-H06102555-A (JP)
Title: Variable wavelength filter control system and controller, and optical communication system using same
Inventor: MAJIMA MASAO
IPC: H04B10/079
Filed: 1993-05-31
Abstract: PURPOSE:To obtain an error signal at the time of pulling and reduce periodic variation in transmission wavelength due to the modulation of the center wavelength of the transmission spectrum of a variable wavelength filter in a stable state. CONSTITUTION:This variable wavelength filter control system tracks the center wavelength of the transmission spectrum of the variable wavelength filter 21 to the wavelength of received light. The center wavelength of the filter 21 is modulated and the phase of a modulated component included in variation in the intensity of the transmitted light of the filter 21 is compared with the phase of the modulated signal to generate the error signal. The center wavelength of the filter 21 is pulled to the wavelength of the received light under feedback control and stabilized. At this time, a tracking monitoring means 31 which monitors the tracking state makes the amplitude of the modulation of the center wavelength of the filter 21 large at the time of the pulling and small in the stable state.
Patent JP-H07330734-A (JP)
Title: Benzanthrone derivative and electrophotographic photoreceptor containing the same
Inventor: KAWAHARA EMI
IPC: C07D221/18
Filed: 1994-06-10
Abstract: PURPOSE:To obtain the subject derinative seful as an electron transfer substance used for electrophotographic photoreceptors. CONSTITUTION:A compound of formula I (R1 and R2 are each an alkyl, phenyl, an alkoxycarbonyl, an alkoxy, an acyl, an aryloxy, SO2NH2, CN, SCN, NO2, etc.; R3 is H, an alkyl, phenyl, etc.; X is O, NR4, NCN, CHCOOR4 etc.; R4 is an alkyl, phenyl, naphthyl, etc.; (m) is 0-4; (n) is 0-2]. The compound of formula I is obtained by subjecting a compound of formula II to Scholl condensation, oxidizing the condensate to afford a compound of formula III and imidating the compound of formula III (when X is O). In the electrophotographic photoreceptor containing an electroconductive support and a photosensitive layer formed thereon as essential elements, high dark damping factor and high sensitivity are given to the photoreceptor by including the compound of formula I to the photoreceptor. The benzanthrone derivative exhibits excellent solubility and dispersibility, especially in a binder resin.
Patent JP-H09319365-A (JP)
Title: Pitch detecting device for string instrument
Inventor: HASEBE SEI
IPC: G10L25/78
Filed: 1996-05-27
Abstract: PROBLEM TO BE SOLVED: To obtain a string instrument pitch detecting device capable of improving the accuracy and speed of pitch detection immediately after note-on. SOLUTION: When an ultrasonic pulse outputted from an ultrasonic pulse output part 21 in an ultrasonic wave sensor 1 and reflected by a player's hand is detected by an ultrasonic pulse detection part 22, a distance information converting part 31 converts a time interval from the output of the pulse up to its detection into the information of a finger plate operating position and a coefficient generating part 34 retrieves a coefficient table stored in a table data storing part 38 in each string, sets up the retrieved result in a filter 33, retrieves a candidate sound table in the storing part 38 in each string, and sends a candidate sound to a music instrument digital interface(MIDI) signal generating part 37.  The MIDI signal generating part 37 compares the pitch of a musical sound detected, band-limited and detected at its pitch with the candidate sound, and when the musical sound pitch is included in the candidate sound, sends an MIDI signal corresponding to the pitch to a sound source 4.
Patent JP-H11353415-A (JP)
Title: Image extracting device
Inventor: NAOI SATOSHI
IPC: G06K9/20
Filed: 1999-05-31
Abstract: PROBLEM TO BE SOLVED: To restore characters, etc., with high quality by accurately extracting frames from an image including characters touching the frames. SOLUTION: The image extracting device which extracts the frames from the image consisting of the frames which are rectangular and separate from one another and characters, figures, or symbols has a connecting pattern extracting means 21 which extracts a partial pattern where pixels connect to each other from a pattern constituting the image, a frame extracting means 22 which extracts the frames according to respective extracted partial patterns, intersection calculating means 25-1 to 25-2 which calculate the intersections of the characters and frames according to the extracted partial patterns and frames, an intersection correspondence means which makes the intersection to correspond according to the continuity of the distance between character segments across frames and the tilt by adaptively varying the criterion for the continuity according to the line width of the frames,  and an in-frame character extracting means which extracts character segments in a frame according to the intersections made to correspond.
Patent JP-S6046913-A (JP)
Title: Microprocessing of silicon dioxide thin film
Inventor: YAMAZOE HIROSHI
IPC: H01L21/308
Filed: 1983-08-24
Abstract: PURPOSE:To suppress the side etching in the titled microprocessing, by using an etchant consisting of an aqueous solution of hydrofluoric acid and ammonium fluoride added with a specific substance. CONSTITUTION:A resist pattern 3 is formed on the silicon dioxide thin film 2 of the substrate 1 by photo-lithography, etc., and the silicon dioxide thin film 2 is etched with an etchant using the pattern 3 as the mask of obtain a microprocessed silicon oxide thin film 4. In the above process, the undesirable side etching (etching of the side wall) is suppressed by using an etchant obtained by adding alpha-naphthalane.monosulfonic acid sodium salt (C10H7SO3Na) to the conventional etchant, i.e. the mixture of an aqueous solution of hydrofluoric acid and an aqueous solution of ammonium fluoride.
Patent JP-H11344135-A (JP)
Title: Seal structure for ball valve
Inventor: FUSEYA HIROKI
IPC: F16K5/06
Filed: 1998-06-02
Abstract: PROBLEM TO BE SOLVED: To provide a seal structure in which sealing portions are decreased, a range of use temperature and kinds of fluid is widened, and sealability is improved without increasing operation torque of a valve. SOLUTION: In a seal structure 15, a retainer 26 pressurized by a spring 28 presses a ball seat 17 against a ball 13. In such a structure, a diaphragm 19 is integrated with the ball seat 17. An end of the diaphragm 18 is sealingly fixed to a valve body 10. Spaces 24, 25 are formed across the diaphragm 18 for separately pressing the ball seat 17 against the ball 13.
Patent JP-S5579373-A (JP)
Title: Imidazole derivative
Inventor: IGURA KATSUYATA
IPC: A01N43/50
Filed: 1978-12-13
Abstract: NEW MATERIAL:A compound of formula I (X is halogen or trifluoromethyl; R is benzyl or alkoxyalkyl; A is pharmaceutically permissible organic acid; n is 1 or 2).  
     EXAMPLE: 1-[ N-( 4-Chloro-2-trifluoromethylphenyl )-2-propoxyacetimidyl ]imidazole oxalic acid salt.  
     USE: Agricultural and horticultural pesticide. Especially effective to powdery mildew of green vegetables, damping-off, scab of apple, scab, powdery mildew and rust of Japanese pear, and helminthosporium leaf spot of corn. Low phytotoxicity.  
     PROCESS: A salt of the objective compound I is prepared by reacting a compound II with an organic acid in a proper solvent. The organic acid is the one which can form a stable salt with the compound II, e.g. oxalic acid and maleic acid. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H09317627-A (JP)
Title: Hydraulic pump
Inventor: NAKAMURA SHIGETAKA
IPC: F04B1/24
Filed: 1996-05-25
Abstract: PROBLEM TO BE SOLVED: To provide an inclined shaft type hydraulic pump capable of reducing delivery pulsation and improving efficiency. SOLUTION: A first conduit 10 and a second 11 are provided on a valve plate 6. An opening position of the first composite 10 is set so that a cylinder port 9 is communicated to the first conduit 10 immediately before the cylinder port 9 is communicated to a suction port 7. An opening position of the second conduit 11 is set so that the cylinder port 9 is communicated to the second conduit 11 immediately after the cylinder port 9 is removed from the suction port 7. The first conduit 10 and the second 11 are connected to an accumulator 16 respectively through check valves 12, 13. The check valve 12 is constituted to allow a flow from the first conduit 10 to the accumulator 16, and the check valve 13 is constituted to allow a flow from the accumulator 16 to the side of the second conduit 11.
Patent JP-S5378488-A (JP)
Title: Tool magazine for machine tool
Inventor: KOUZUKI HIDEMASA
IPC: B23Q3/157
Filed: 1976-12-22
Abstract: PURPOSE:To provide a tool magazine for machine tool, in which tool fingers provided in blocks for each spindle are formed on opposite faces of a regular polygonal housing, so as to enable simultaneous changing of a plurality of fools.
Patent JP-H079584-A (JP)
Title: Production of polysulfone film
Inventor: SHIMOMURA HIDEKI
IPC: B29D7/01
Filed: 1993-06-24
Abstract: PURPOSE:To provide a polysulfone film or sheet of optically high quality. CONSTITUTION:In the manufacture of a polysulfone film or sheet, a soln. casting method is used and, in a process (1), a soln. is obtained by dissolving polysulfone in a methylene chloride solvent and, in a process (2)a, the casting of the solution is started within 6hr after the solution is obtained or, in a process (2)b, a filtrate is obtained by filtering the solution X-hr after the soln. is obtained and the casting thereof is started Y-hr after filtering. X and Y satisify the conditions of 0<=x<=48 and 0<=Y<=12 or 48<=X and 0<=Y<=4.25X10<-3>X<2>-0.272X+15.3. By this constitution, a polysulfone film or sheet of optically high quality can be manufactured.
Patent JP-H091713-A (JP)
Title: Fiber-reinforced type laminated structure, cylindrical fiber-reinforced type laminated structure and fiber-reinforced type laminated structure having curvature
Inventor: MASUDA YUMIKO
IPC: B32B5/00
Filed: 1995-06-20
Abstract: PURPOSE: To provide a fiber-reinforced type laminated structure, which is light and has excellent dynamic characteristics such as biaxial stress property and general utility. CONSTITUTION: In this fiber-reinforced type laminated structure, which is molded by laminating a plurality of fiber sheets, the fiber orienting angle θ between the neighboring sheets is set at 60 deg.<θ<90 deg. (isotropic material) for a plurality of the laminated fiber sheets.
Patent JP-H0822099-A (JP)
Title: Silver halide photographic photosensitive material and its image forming method
Inventor: HOSOI YUJI
IPC: G03D3/08
Filed: 1994-07-05
Abstract: PURPOSE:To provide a silver halide photographic photosensitive material and its image forming method by which the transferring property of the material in a laser imager is improved and meandering of a film is prevented. CONSTITUTION:This silver halide photographic photosensitive material has at least one silver halide emulsion layer on one side of a supporting body and has a nonphotosensitive hydrophilic colloid layer on the side of the supporting body opposite to the emulsion layer and a hydrophobic polymer layer thereon. The silver halide photographic photosensitive material satisfies the relation of 0.7<muE/muB<1.4 when the dynamic friction coefft. thereof is measured on a carrying member of an exposure device for carrying a silver halide photographic photosensitive material between nip rolls. In this relation, muE is the coefft. of dynamic friction on the silver halide emulsion layer side and muB is the coefft. of dynamic friction on the hydrophobic polymer layer side measured under conditions of 30 deg.C and 20% RH. An image is formed by using an exposing device having >=50mm/s carrying speed of nip rolls.
Patent JP-2000053861-A (JP)
Title: Black-colored reinforced polyamide resin composition
Inventor: FUJII OSAMU
IPC: C08K7/14
Filed: 1999-06-01
Abstract: PROBLEM TO BE SOLVED: To obtain a polyamide composition which can give a molded article showing reduced fading of black color and having excellent appearance even under conditions in which the article is exposed to rain and wind by mixing a polyamide with an inorganic filler, carbon black, and a copper phthalocyanine derivative. SOLUTION: This composition comprises 30-70 pts.wt. polyamide (A) comprising 85-100 wt.% aromatic polyamide and 0-15 wt.% aliphatic polyamide, 70-30 pts.wt. inorganic filler (B) such as a glass fiber or mica, 0.05-10 pts.wt., per 100 pts.wt. total of components A and B, carbon black (C), and 5-100 pts.wt., per 100 pts.wt. component C, copper phthalocyanine derivative (D). The copper phthalocyanine derivative is a compound represented by formula I or II, such as an alkylanilinosulfamoyl copper phthalocyanine. In the formulae, X is -CH2-, -CH2-CH2-COO-C2H4, or the like; R1, R2, and R3 are each hydrogen, an alkyl, a cycloalkyl, or the like; R4 is an alkylaryl, an aryl, or the like; and n is 1-4.
Patent JP-H113928-A (JP)
Title: Portable wafer tweezers
Inventor: KOIKE MIYUKI
IPC: H01L21/677
Filed: 1997-06-11
Abstract: PROBLEM TO BE SOLVED: To move a wafer freely without being limited in movement range, while keeping a wafer vacuumed by installing a suction device in a pincette itself. SOLUTION: A vacuum device is fixed to a portable tweezers and a tip part of the tweezers is arched. A wafer is held so that an outer circumferential part of a wafer comes into contact with a surface with numerous holes in an arched tip part of a pincette 103. A rubber ball 101 is squeezed to emit air inside a ball, while a wafer is being held. In the process, a finger at an opening/closing port 104 is kept apart from the port for easily emitting air. Then, after the port 104 is closed by a finger, fingers are let go of the rubber ball 101 at once, and the squeezed ball returns to its original shape. Since air does not enter from an opening/closing port, vacuum condition is realized and a wafer is vacuumed by a tweezers and fixed.
Patent JP-2000347314-A (JP)
Title: Bar code reader, bar code reading method and memory medium
Inventor: NISHIKAWA FUMIKAZU
IPC: G03B27/46
Filed: 1999-06-01
Abstract: PROBLEM TO BE SOLVED: To exactly read bar codes with simple circuitry. SOLUTION: At least any one or both of a sensor and the bar codes 8 for reading the information of data parts of the bar codes 8 consisting of the data parts and clock parts are moved at a prescribed speed. A first point where '1's continue for a prescribed number of pieces or above successively from the top of the bar code data outputted from the sensors, a second point where '0's continue for the prescribed number of pieces or above in succession thereto, a third point where the '1's continue for a prescribed number of pieces or above successively from the terminal of the bar code data, a fourth point where the '0's continue for the prescribed number of pieces or above in succession thereto,  the sampling number of pieces from the central position of the second point to the central position of the fourth point and the sampling number of pieces per bit from the bit number of the bar codes 8 are calculated. The data is fetched at every sampling number of piece and bar code patterns are extracted, by which the detection of the bar code data with one piece of the sensor is made possible.
Patent JP-H1059888-A (JP)
Title: Production of bisphenol compounds
Inventor: KISSINGER GAYLORD MICHAEL
IPC: B01J31/40
Filed: 1997-06-12
Abstract: PROBLEM TO BE SOLVED: To efficiently obtain a highly pure bisphenol compound by reacting a phenol compound with a ketone compound in the presence of an ion exchange resin catalyst and subsequently treating the reaction product under specific conditions. SOLUTION: This method for producing a bisphenol compound comprises reacting a phenol compound with a ketone compound in the presence of an ion exchange resin catalyst to produce the bisphenol compound, separating the unreacted phenol compound with a phenol compound-removing device 10, drying the phenol compound with a dehydrating device 15, returning the dried phenol compound to the reaction device 5, separating water extracted from the ketone compound with a waste liquid-purifying device, returning the ketone compound to the reaction device 5, transferring the water to a drainage, separating phenol compound, isomers and tar from the bisphenol compound with a melt-crystallizing device 25, transferring the obtained recycling residues containing the bisphenol compound, the phenol compound, the tar and the isomers to a recycling recovery device 30 to recover the bisphenol compound,  returning the bisphenol compound to the melt-crystallizing device 25, and subsequently purifying the bisphenol compound with a bisphenol-recovering device 40. The tar, the phenol compound and the isomers are recovered with a tar/isomer-recovering device 35 and subsequently recycled.
Patent JP-S6045634-A (JP)
Inventor: ROORENSU KUZUNETSUTSU
IPC: B32B15/14
Filed: 1984-07-26
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-H093453-A (JP)
Title: Soil cement composition
Inventor: YAMAKAWA TSUTOMU
IPC: C09K17/44
Filed: 1995-06-21
Abstract: PURPOSE: To obtain a soil cement composition useful for developing an artificial island, and developing and repairing a quay wall and a revetment by adding a thickener and a defoaming agent to a soil cement containing a hydraulic powdery material such as a cement and earth sand, sand, clay, water, etc., blended therein and further adding a retarder, dispersing agent, etc., thereto and then kneading the resultant mixture. CONSTITUTION: This soil cement composition is obtained by adding a thickener such as a nonionic water-soluble cellulose ether and a defoaming agent to a soil cement containing a hydraulic powdery material such as a cement, earth and sand, sand, clay and water, etc., blended therein, further adding a retarder and a dispersing agent or the retarder or the dispersing agent thereto and kneading the resultant blend.
Patent JP-H096936-A (JP)
Title: Magnetic card reader-writer
Inventor: MURANAKA TAKANORI
IPC: G06K17/00
Filed: 1995-06-21
Abstract: PURPOSE: To confirm the use state of the magnetic card reader-writer such as the frequency of processing at any time by adding a storage device which maintains its stored contents even when powered OFF and is electrically rewritable. CONSTITUTION: This magnetic card reader-writer consists of a CPU 1 which sends instructions principally for the operation of the whole card reader, an EEPROM 2 which is stored with the operation program of the card reader, a RAM 3 which is stored with read data read out of a magnetic card and print data for printing, a card position detection sensor 4, a motor driving part 5, a magnetic card R/W part 6, and a print head driving part 7, and the rewritable EEPROM 8 is further added. This EEPROM 8 has the features of two electronic components and is an electronic component which can have data rewritten electrically with ease and maintain the data even unless a voltage is applied. Processing frequencies of this magnetic card reader writer is recorded in the EEPROM 8, processing by processing.
Patent JP-S6192991-A (JP)
Inventor: MAMUDOUU EMU SARAMA
IPC: F16L9/12
Filed: 1985-07-15
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-S6214026-A (JP)
Title: Weight detector
Inventor: WADA YOSHIHIRO
IPC: G01G23/06
Filed: 1985-07-12
Abstract: PURPOSE:To enable reduction in the time to reach a stable weighed value, by providing a lift for receiving an overload between a frame and a weighing plate to elevate the durability of a weight meter. CONSTITUTION:When nothing is placed on a weighing plate 11, elastic bodies 18c and 18c of overload stoppers 18 and 18 are at the upper limit movement position in contact with the weighing plate 11. When an object to be measured is placed on the weighing plate 11, the load WA working on a weighing sensor section 15 through a weighing plate support section 13 is converted into an electrical signal to be inputted into an input means 19a of a controller 19. A waveform analysis means 19b is provided to detect the generation of the load WA, namely, the placing of an object to be measured and the subsequent attenuation of the load WA. Waiting for the attenuation of the load WA, a signal is transmitted by an output means 19c to indicate the lowering of the elastic 18c and 18c to lift mechanisms 18b and 18b of overload stoppers 18 and 18 and the elastic bodies 18c and 18c separate from the weighing plate 11 to shift off the overload. This minimizes the effect of a dynamic overload on a weighing mechanism section thereby elevating the durability of the apparatus.
Patent JP-H0445496-A (JP)
Title: Automatic handbell musical performance device
Inventor: NANIKI AKIO
IPC: G10F1/08
Filed: 1990-06-13
Abstract: PURPOSE:To execute the automatic musical performance of a musical piece by executing separately the oscillation control of plural handbells, and sounding them systematically, based on musical performance information. CONSTITUTION:For instance, when a command for small sound volume is executed, a control signal for moving a handbell 11 to a sounding start position P is outputted to a servomotor 28 from a CPU 49, and the handbell 11 is moved to said position P. Subsequently, a control signal for moving the handbell 11 to a sounding position C set in advance by small acceleration is outputted from the CPU 49, and the handbell 11 is moved to the position C by acceleration. In such a way, when the handbell 11 is moved to the set sounding position C, an arrival waiting processing of a hammer 11b is executed. As a result, the hammer 11b comes into collision with a handbell main body 11a and sounding of small sound volume is executed. In such a way, by executing separately the oscillation control of plural handbells 11, and sounding them systematically, based on musical performance information, the automatic musical performance of a musical piece is executed.
Patent JP-S6046195-A (JP)
Title: Diaphragm for electroacoustic transducer
Inventor: INOUE TOSHIHIDE
IPC: H04R7/12
Filed: 1983-08-23
Abstract: PURPOSE:To obtain a diaphragm which is light-weight and has a high stiffness by using magnesium or magnesium alloy as a base material and sticking ceramic materials to one or both faces of this base material. CONSTITUTION:For example, a magnesium alloy having 100mu thickness is used as a base material 1 and is formed into a diaphragm shape having 25mm. diameter, and a beryllium oxide is stuck as ceramic materials 2 and 2' to both faces of the base material 1 with 10mu thickness in a mixed gas of argon and oxygen at 5X10<-6>Torr pressure by a reactive sputtering method. Frequency characteristics of a speaker using this diaphragm are improved because frequencies of spikes due to split oscillation and FH are moved to a high band in comparison with a speaker using a diaphragm consisting of a single magnesium alloy.
Patent JP-H1170632-A (JP)
Title: Printing plate and its production
Inventor: SIMONS MICHAEL JOHN
IPC: B41J2/01
Filed: 1998-06-03
Abstract: PROBLEM TO BE SOLVED: To rapidly and directly produce a printing plate by using a relatively low cost apparatus without requiring a photosensitive material by imagewise applying ink jet printing to the surface of a support by using an aq. soln. or colloidal dispersion of a hydrophobic org. acid salt. SOLUTION: The image on the surface of a printing plate is formed by using an aq. soln. or aq. colloidal dispersion of a hydrophobic org. acid salt. The salt of carboxylic acid having a substd. or unsubstd. hydrocarbon group, sulfuric acid or a hydrophobic org. acid can be present in an aq. compsn. in an amt. of 0.005-5 wt.%, pref., 0.02-1 wt.%. Water is a pref. aq. dispersing medium but one or more kind of a water miscible solvent, for example, polyhydric alcohol may be added. The surface tension of aq. ink may be controlled by adding a small amt. of a surfactant.