baber/WOPTO huggingface dataset:
Patent JP-S59145587-A (JP)
Title: Direct current bias circuit for semiconductor laser
Inventor: NISHIE MITSUAKI
IPC: H01S5/068
Filed: 1983-12-27
Abstract: PURPOSE:To prevent overcurrents, and to obviate a breakdown by overcurrents of a semiconductor laser by connecting a Zener diode between a control terminal and an output terminal for a constant-current circuit. CONSTITUTION:A DC bias circuit 5 is formed in constitution in which a Zener diode 53 is connected between a base of a transistor 51 constituting a constant- current circuit and negative power supply voltage and a control signal (a) from a comparison circuit 3 is inputted to the base of the transistor 51 through an operational amplifier 52. Since the Zener diode 53 protects so that the base voltage of the transistor 51 does not reach a fixed value or more at that time, high currents do not flow through a semiconductor laser 1 even when a large signal is applied to the DC bias circuit 5 due to a short circuit, etc., and the breakdown of an element can be prevented. The DC bias circuit is very effective when it is applied to an APC circuit.
Patent JP-H0888807-A (JP)
Title: Image sensor
Inventor: HAYASHI SHINICHI
IPC: H04N5/335
Filed: 1994-09-16
Abstract: PURPOSE: To simplify manufacturing processes and to improve quality by mounting an optical element on the opposite surface of the mounting surface of a photoelectric conversion element. CONSTITUTION: This image sensor 10 is composed by mounting only the photoelectric conversion element 13 on the surface 15c of a substrate 15, turning only the back surface 15b of the substrate 15 to a solder reflow surface and mounting the various kinds of ICs (the other circuit parts) 14 and an LED (light emitting element) 12 on the back surface 15b by solder reflow. By turning only one surface 15b to the solder reflow surface, only one time solder reflow process will suffice. By turning the surface 15b opposite to the surface 15c where the photoelectric conversion element 13 is mounted on the solder reflow surface and mounting the LED 12 on the surface 15b, the photoelectric conversion element 13 is hardly contaminated by impurities by the influence of a solder reflow processing.
Patent JP-H1074710-A (JP)
Title: Manufacture of semiconductor device and sputtering
Inventor: FUCHINO FUMIHIRO
IPC: H01L21/28
Filed: 1996-08-30
Abstract: PROBLEM TO BE SOLVED: To form a high-melting point metal film, which has a good film quality and a full film thickness, also in a connection hole of a high aspect ratio. SOLUTION: A wafer with a contact hole bored therein is arranged in parallel to a target and a Ti film 3 is deposited on the wafer by a normal collimated sputtering method. Then, the wafer is slanted conforming to the largest aspect ratio of the contact hole in the wafer and the sputtering of Ti is performed while the contact hole is rotated in the surface of the wafer. Then, an aluminium film is provided on the target, the wafer is installed in such a way that the surface of the wafer becomes parallel to the target, a high-temperature sputtering of aluminium is performed without using a collimeter, the contact hole is filled with an aluminium film and the aluminium film 4 is formed also on the surface of the interlayer insulating film.
Patent JP-H0297693-A (JP)
Title: Jet type plating equipment
Inventor: OSUMI TAKUJI
IPC: C25D5/08
Filed: 1988-10-04
Abstract: PURPOSE:To improve yield for formation of plating by providing a means by which foams are separated from plating liquid and the separated foams are discharged to a plating liquid trap part. CONSTITUTION:In a jet type plating equipment, when plating liquid contg. foams is supplied through a plating liquid trap part 32 from a plating liquid source pipe 25, foams are pushed up to a plating cup fixing plate 31 by liquid pressure. The foams in plating liquid are separated and stagnated just under the cup fixing plate 31 and thereafter transferred and discharged through a foam drawing pipe 28. The plating liquid separated from foams is uniformly supplied to respective plating cups 27 through the flow dividing pipes 26 and jetted toward the material 21 to be plated from anodes 24. The flow dividing pipes 26 are regulated to sufficient length so that foams are not infiltrated into the plating cups 27. The height of the foam drawing pipe 28 is made higher than at least the plating cups 27.
Patent JP-2000081135-A (JP)
Title: Piston ring and combination of piston ring with piston
Inventor: NAGAI HIROYASU
IPC: F02F5/00
Filed: 1998-09-03
Abstract: PROBLEM TO BE SOLVED: To enhance the wear resistance and coagulation resistance to contact sliding aluminum alloy in the piston groove of a piston ring by converging ridge lines formed by crossing adjacent surfaces of individual polyhedrons toward the upper surface of a coating layer. SOLUTION: The iron electroplating of a first coating layer 4 formed on the upper and lower surface of this piston ring 3 has an irregular surface, and the surface roughness showing the magnitude of the irregularities is 1.0-6.0 μmRz. Further, the iron electroplating of the first coating layer 4 has an irregular surface consisting of alignment of a number of sharp-point polyhedrons. In each of the polyhedrons, the number of ridges formed in the boundaries of surfaces is most generally 6, and often 3-4 although it is slight. Since the ridge lines of a polyhedral crystal having 6 ridges, for example, are converged to above the coating layers 4, 5, or toward a piston 1 side, the upper part of the coating layers 4, 5 has reverse V-shaped pyramidal forms.
Patent JP-H02188554-A (JP)
Title: Preparation of 2,6-naphthalenedicarboxylic acid
Inventor: DEIBITSUDO AREN YANGU
IPC: C07C63/38
Filed: 1989-09-27
Abstract: PURPOSE: To obtain the subject compd. useful as a raw material of polyethylene naphthalate by oxidizing 2,6-diethylnaphthalenes under a liquid phase condition by oxygen-containing gas in the presence of a metal and a bromine component.  
     CONSTITUTION: 2,6-Diethylnaphthalene or its oxidized deriv. and oxygen- containing gas are subjected to oxidation reaction in a liquid phase in a water- containing lower aliphatic monocarboxylic solvent (e.g. acetic acid) in the presence of an oxidation catalyst at a temp. of 165-270°C under a pressure of 0-35 kg/cm 2 G to obtain the objective compd. The catalyst consists of Co, Mn, Br and Ce components and, per 1 g mol. of the starting substance in liquid phase oxidation, Co is 30-1,000 mga (calculated as an element Co), Mn is 0.5-3 mga per 1 mga of Co (as elemental Mn), Br is 0.05-1 mga per 1 mga of the total amt. of Co and Mn (as elemental Br) and Ce is 0.025-1.0 mga per 1 mga of Co (as elemental Ce). 
     COPYRIGHT: (C)1990,JPO
Patent JP-S62107973-A (JP)
Title: Polishing device for belt sander
Inventor: TAKAHASHI KO
IPC: B24B53/007
Filed: 1985-11-07
Abstract: PURPOSE:To prevent production of wrinkle at a ridge part due to the pressure contact force of a polishing belt, by a method wherein retainer rolls are totally driven, and a drive rotation force is exerted on a ridge roll brought into pressure contact with a polishing belt. CONSTITUTION:Through driving of a drive motor M and running of a chain 34, retainer rolls 7 and 8 are rotated, and the rotation force thereof is transmitted to a retainer roll 9 by means of a chain 28. Through driving of all the retainer rolls 7-9, a polishing belt 10, run about the retainer rolls 7-9, is run, and the drive force of the drive motor M is also transmitted to a ridge roll 16 by means of a chain 37. The ridge roll 16, brought into pressure contact with the polishing belt 10, is driven and rotated, and the polishing belt 10 is run in a condition to hold a stretch state at a ridge part. Production of wrinkle at the ridge part due to the pressure contact is prevented, and driving of all the retainer rolls 7-9 prevents strip of the polishing belt 10 as much as possible.
Patent JP-S61129206-A (JP)
Title: Tank for roll coolant
Inventor: CHIBA MINORU
IPC: B21B45/02
Filed: 1984-11-28
Abstract: PURPOSE:To eliminate the need for operation of a movable baffle, etc. and the check of a liquid level by balancing a movable device for adjusting the height of the movable baffle by the respective floats of a dirty chamber and clean chamber and adjusting automatically the movable baffle by following up to the fluctuation of the liquid level. CONSTITUTION:Respective apparatus are so set that the liquid level difference between the dirty chamber 11 and the clean chamber 12 is delta. The float 31 descends by L when the liquid in the chamber 11 decreases by L from this state. Then a winding drum 37 rotates and a wire rope 42 is unwound by the length L. A pulley 39 descends consequently by L/2 and the movable baffle 8 descends by L/2 as well. The liquid level in the chamber 12 decreases by L/2 as well. Therefore the float 32 descends by L/2 and a winding drum 38 rotates, by which the wire rope 42 is unwound by L/2. The pulley 39 descends by L/4 and the liquid level in the chamber 12 decreases. The float 32 repeats the descending and the baffle 8 repeats descending by as much as 1/2 the decrease of the liquid level in the chamber 12.
Patent JP-H09111168-A (JP)
Title: Ink for ink-jet printing
Inventor: GUERINO JII SAKURIPANTE
IPC: C09D11/00
Filed: 1996-09-20
Abstract: PROBLEM TO BE SOLVED: To obtain an ink jet printing ink which can satisfy the requirements of an ink such as viscosity and surface tension, can give a high-quality image to recording paper, and is friendly to the environment because of the dispensability with a heretofore necessary cosolvent and can be easily and inexpensively produced.  
     SOLUTION: In an ink jet printing ink prepared by adding colored particles to a liquid vehicle, the colored particles contain a dye chemically bonded to an emulsifiable polymerizable resin containing a hydrophilic component (e.g. alkali sulfonate). The emulsifiable dye polymer resin contains a dye chemically bonded to the polymer resin. 
     COPYRIGHT: (C)1997,JPO
Patent JP-H04128315-A (JP)
Title: Production of steel pipe having excellent aseismic characteristic, fire resistance characteristic and low-temperature toughness
Inventor: YAMAMOTO YASUSHI
IPC: C21D8/10
Filed: 1990-09-19
Abstract: PURPOSE:To produce the steel pipe having an excellent aseismic characteristic, fire resistance characteristic and low-temp. toughness by successively subjecting the low-carbon steel pipe contg. specific ratios of Mo, Nb and V to respective treatments of heating, strain imparting, cooling, and tempering under specific conditions. CONSTITUTION:The low-carbon steel pipe contg., by weight%, 0.1 to 2.5% Mo, contg. one or 2 kinds of 0.010 to 0.15% Nb and 0.010 to 0.30% V, and contg. preferably about 0.03 to 0.30% C, 0.02 to 0.50% Si, about 0.20 to 2.00% Mn, about 0.001 to 0.100% Al, and about 0.0005 to 0.0100% N as essential components is heated to (Ac3-200 deg.C) or above. After >=0.1% strain is imparted to this steel pipe in a temp. range of (Ac3-200 deg.C) to (Ac3-20 deg.C), the steel pipe is cooled at >=15 deg.C/sec rate and is temperature in a 200 deg.C to 600 deg.C temp. range. The steel pipe having the high strength of about >=40kgf/mm<2> and the excellent aseismic characteristic, fire resistance characteristic and low-temp. characteristic is obtd. in this way.
Patent JP-H0192722-A (JP)
Title: Transmission type liquid crystal display element
Inventor: TASHIRO YOSHIZO
IPC: G02F1/133
Filed: 1987-10-05
Abstract: PURPOSE:To eliminate the difference of brightness of a display pattern and a background color at the time of non-display and to obviate a skeleton visible phenomenon by forming a white mask layer in a part excluding a display pattern electrode where the upper electrode and the lower electrode are formed so as to be opposed to each other. CONSTITUTION:As for the titled display element, a conventional black mask layer is changed to a white mask 12, and when a voltage is applied between the upper and the lower electrodes 3, 9, a display pattern A is bright and looks like a colored light and a background color B becomes black. Also, when no voltage is applied between the electrodes 3, 9, the arrangement of liquid crystal molecules between a display pattern electrode 3a and the lower electrode 9, and in a part where the upper and the lower electrode 3, 9 are not opposed becomes horizontal, the display pattern A becomes a little bright, but since a light beam from an observer side is reflected by the white mask layer 12, the background part B also becomes a little bright. In such a way, the difference of brightness of the display pattern A and the background part B is eliminated, and a skeleton visible phenomenon occurred up to the present can be prevented.
Patent JP-H0892520-A (JP)
Title: Lead refill
Inventor: MATSUMOTO KOICHI
IPC: C09D13/00
Filed: 1994-09-19
Abstract: PURPOSE: To obtain a lead refill, by no means inferior in writing quality and strength and capable of suppressing an increase in cost, hardly causing a variation in quality and providing a beautiful appearance without causing foulings in hands and fingers, etc., by constituting a white fluorinating treatment layer on the outer peripheral part of a black refill unit containing a carbonaceous substance. CONSTITUTION: This lead refill is obtained by constituting a fluorinating treatment layer prepared by carrying out the fluorinating treatment of a refill unit on the outer peripheral part of the refill unit comprising at least a carbonaceous substance such as graphite or carbon black as a colorant or a pigment and a skeletal material such as clay or carbon. Furthermore, the thickness of the fluorinating treatment layer is preferably 1-50μm.
Patent JP-H03112006-A (JP)
Title: Fitting device of illuminating fixture to bath unit
Inventor: NAKAMURA MOTOHIKO
IPC: E04B9/00
Filed: 1989-09-26
Abstract: PURPOSE:To fit an illuminating fixture via the fitting work from the inside of a bath unit by fixing a metal hanger on a ceiling panel, and connecting the top plate section of an illuminating fixture case via bolts. CONSTITUTION:A metal hanger 5 is fixed on the ceiling panel 2 of a bath unit so as to be located at the frontage 3 of the panel 2. The top plate section 11 of an illuminating fixture case provided with an illuminating fixture 9 having a lamp 8 or the like is fixed to the hanging section 6 of the metal hanger 5 with bolts 7 while an abutting part 4 of the panel 2 is closely fixed to a part 13 of the illuminating fixture case. The illuminating fixture is easily and satisfactorily fitted to the bath unit via the fitting work from the inside of the bath unit.
Patent JP-H1193400-A (JP)
Title: Bracket for slope scaffold
Inventor: OKUYAMA SUMIHIRO
IPC: E04G1/36
Filed: 1997-09-16
Abstract: PROBLEM TO BE SOLVED: To reduce the loss of parts and improve workability. SOLUTION: The bracket 1 for the slope scaffold consists of a horizontal member 2, a mounting member 3, a diagonal member 4 and a handrail pole 5, one end section 2a of the horizontal member 2 is connected rotatably to the upper section 3a of the mounting member 3, one end section 4a of the diagonal member 4 is coupled rotatably with the lower section 3b of the mounting member 3 and the lower section 5a of the handrail pole 5 is joined rotatably with the other end section 2b of the horizontal member 2. A plurality of support holes 4b are formed in the axial direction of the diagonal member 4, and the support hole 4b selected from a plurality of the support holes 4b and the other end section 2b of the horizontal member 2 are interlinked and unified by a detachable pin 21.
Patent JP-S62110322-A (JP)
Title: Sample-and-hold system
Inventor: TAKEDA SATOSHI
IPC: H03M1/12
Filed: 1985-11-08
Abstract: PURPOSE:To double the cycle time for one sample-and-hold and to attain analog/ digital conversion with high speed and good stability by providing two sample- and-hold circuits to one A/D converter and using the two sample-and-hold circuits while being switched in time division. CONSTITUTION:An analog signal is inputted to the sample-and-hold circuit, the signal is traced by sampling and the input signal is subjected to holding. In the constitution shown in figure, the two sample-and-hold circuits No.1, No.2 are provided and the two circuits are used while being switched in time division. Since the two sample-and-hold circuits are used in time division, the sufficient sampling time is obtained and the sampling period is quickened as fast as two times of a conventional period.
Patent JP-H08114371-A (JP)
Title: Ice making apparatus
Inventor: INAMORI SHOHEI
IPC: F25D23/00
Filed: 1994-10-17
Abstract: PURPOSE: To provide a highly safe ice making apparatus by securely removing water, which attaches onto a connecting cord of an antifreeze electric heater within a water supply pipe on account of water flowing from a refrigerator and condensation due to outer humid air flowing into the refrigerator, from the connecting cord so that smoke emission and fire due to breakdown of a connecting terminal portion is prevented from occurring. CONSTITUTION: A connecting cord 13 is formed in a reversed U-shape by means of a course guide rib 17 installed in a water supply conduit 5 and disposed in a part lower than a connecting terminal 16 of the electric heater connecting cord 13 of an electric heater 12 to which electricity is applied. A blind plate 20 integrated with a water supply apparatus 18 for screening the course guide rib 17 is provided.
Patent JP-S61130051-A (JP)
Title: Manufacture of bubble jet head
Inventor: YAMAMOTO KUNIO
IPC: B41J2/05
Filed: 1984-11-29
Abstract: PURPOSE:To facilitate manufacture of a supply chamber, a passage chamber and a thermal action chamber which are constituted of recessed form grooves differing in depth, by a method wherein an oxide insulating layer in a pattern is provided on a substrate on which heating dots are to be provided, and the parts of the substrate devoid of the insulating layer are subjected to anisotropic etching. CONSTITUTION:Silicon oxide insulating layers 21, 2 with a surface layer depth of about 1mum are provided on the face and back sides of a silicon substrate 1. A desirably shaped pattern of a resist film 23 is provided on the surface of the insulating layer 21 on the face side of the substrate 1, and a resist film 22 is provided on the entire surface of the insulating layer 2 on the back side of the substrate 1. Next, only the surface of the substrate 1 is etched to provide desirably shaped patterns 21a-21d of the insulating layer 21. Then, the substrate is subjected to anisotropic etching to provide the thermal action chamber 1a, the passage chamber 1b and the supply chamber 1c consisting of the grooves formed in accordance with the widths of the parts (l), (m) and (n) devoid of the insulating layer 21. The depth of the groove is small for the passage chamber 1b, while that for the chambers 1a, 1c is so large as to reach the back side of the substrate 1.
Patent JP-H1180602-A (JP)
Title: Preparation of powder slurry coating
Inventor: KASHIWAGI YASUYOSHI
IPC: C09D5/03
Filed: 1997-09-16
Abstract: PROBLEM TO BE SOLVED: To provide a process for preparing a powder slurry coating which can eliminate the need to provide the step of grinding and can improve heat stability and the appearance of coatings by comprising mixing a water dispersion of a curing agent with a water dispersion of fines particles of a resin prepd. by mixing a resin melt contg. a synthetic resin for a powder coating with an aq. medium. SOLUTION: A resin melt obtd. by heat-melting a, kneaded product of a synthetic resin for a powder coating and optionally a photoinitiator and a color pigment is mixed with an aq. medium heated to a temp. around the softening point of the resin under pressure. The resin melt is mechanically emulsified and dispersed in the aq. medium while maintaining the mixture at a temp. around the softening point of the resin. The system is rapidly cooled to obtain a water dispersion (A) of fines particles of the resin. Separately, a melt of a curing agent obtd. by heat melting a curing agent is mixed with an aq. medium heated to a temp. around the softening point of the curing agent. The melting of the curing agent is mechanically emulsified and dispersed in the aq. medium while maintaining the mixture at a temp. around the softening point of the curing agent.  The system is rapidly cooled to obtain a water dispersion (B) of fine particles of the curing agent. Next, the component A is mixed with the component B.
Patent JP-2000072005-A (JP)
Title: Rack shaft bearing structure in power steering
Inventor: SAITO MITSUO
IPC: F16C17/02
Filed: 1998-09-04
Abstract: PROBLEM TO BE SOLVED: To prevent generation of noise by dissolving looseness of a rack shaft caused by a clearance between the rack shaft and a bearing metal bush in a rack shaft bearing structure in a power steering used in a vehicle steering system. SOLUTION: A metal bush 8 and a resin bush 9 disposed adjacently to the metal bush 8 and having a smaller diameter than the metal bush 8 are fittingly fixed to bearing parts 2c, 2d in a rack shaft storage part 2a of a gear box 2 housing a rack shaft 3. The rack shaft 3 is supported by these metal bush 8 and resin bush 9.
Patent JP-H0799944-A (JP)
Title: Preparation of roux packed in container
Inventor: OOTSUKA ATSUHIRO
IPC: A23L23/10
Filed: 1993-10-06
Abstract: PURPOSE:To provide a process for the production of roux packed in a recyclable container resistant to thermal deformation even by charging a relatively high- temperature roux to the container. CONSTITUTION:This process for the production of roux packed in a container comprises the filling of a roux prepared by conventional process at about 50-80 deg.C into a single-layer container made of a polyethylene terephthalate, having a thickness of 200-400mum and formed by thermal forming of a sheet, and the cooling of the roux to about <=35 deg.C in the container.
Patent JP-S60221733-A (JP)
Inventor: PIITAA RIETSUTOBUROTSUKU
IPC: G03B9/08
Filed: 1984-11-29
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-S60136784-A (JP)
Title: Electrophotographic copying machine
Inventor: ITOIGAWA MASAKATSU
IPC: G03G21/16
Filed: 1983-12-26
Abstract: PURPOSE:To replace an endless photosensitive body easily and securely by controlling the release of the tension of the endless photosensitive body and tension application to a photosensitive body through the operation and returning of a tension releasing means. CONSTITUTION:When an upper frame unit 21 is turned and opened to turn a tension release lever 31 by 90 deg., and then the endless photosensitive body 4 between large- and small-diameter drums 16 and 17 is released from being tensed. At the same time, a protection cover 26 is unlocked and an unlocking lever 33 is gripped to open a cover 26, thereby replacing the photosensitive body 4. The cover 26 is closed after the replacement and the lever 31 is returned to lock the cover 26 while the photosensitive body 4 is tensed automatically, thus replacing the endless photosensitive body easily and excellently.
Patent JP-S60134156-A (JP)
Title: Solar heat collecting plate of synthetic resin
Inventor: HORI MASAMI
IPC: F24S10/70
Filed: 1983-12-23
Abstract: PURPOSE:To prevent the lowering of the performance of solar heat collecting plates by avoiding damage to the selective absorption film of the plates during manufacturing and delivery processes by providing portions projected from a water-introducing pipe to the solar energy collecting plates with selective absorption films. CONSTITUTION:Plural projected portions 4 are formed in different places on the surface and back sides of the fin 2 of a synthetic resin solar energy collecting plate 1 whose base plate 8 is provided with a metal reflecting layer 9 and a selective absorption layer 10. The projected portion 4 has a height H higher than that L of a water-introducing pipe 3. Damage to the selective absorption layers 10 by mutual contact can thus be prevented even when the plates 1 are overlapped on each other.