baber/WOPTO huggingface dataset:
Patent JP-H10140238-A (JP)
Title: Production of steel tube for air bag, having high strength and high toughness
Inventor: BEPPU KENICHI
IPC: B60R21/268
Filed: 1996-11-12
Abstract: PROBLEM TO BE SOLVED: To produce a seamless steel tube for an accumulator for air bag system, excellent in workability and weldability and having high strength and high toughness. SOLUTION: A steel, having a composition consisting of 0.01-<0.20% C, <=0.50% Si, 0.30-2.00% Mn, <=0.020% P, <=0.020% S, <=0.10% Al, and the balance Fe with inevitable impurities, is subjected to hot tube making at >=750 deg.C final finishing temp. The resultant steel tube is used in this state or used in a state after subjected, after hot tube making, to stress relief annealing, normalizing, annealing, and hardening or is used after subjected to quench-and-temper treatment. By this method, the seamless steel tube, excellent in workability and weldability and having high strength and high toughness, can be produced.
Patent JP-H11150439-A (JP)
Title: Electronic component
Inventor: WAJIMA MASAYA
IPC: H03H9/02
Filed: 1997-11-18
Abstract: PROBLEM TO BE SOLVED: To obtain an electronic component with superior electric connection reliability and heat and shock resistance, in which front/rear side of its case base is selected automatically. SOLUTION: A piezoelectric resonator element 2 couples with connects electrically to external electrodes 5-7 which is formed to a lower case base 3 via conductive connection materials 8a-8d to configure a piezoelectric resonator. A part of external electrodes 5, 7 reaching an upper face of a lower case base 3 is divided to configure split electrode sections 5a, 5b, 7a, 7b and the split electrode sections 5a, 5b, 7a, 7b are connected electrically to the piezoelectric resonator element 2 via the conductive connection materials 8a-8d.
Patent JP-H07167169-A (JP)
Title: Outer ring fixing structure for one-way clutch
Inventor: KINOSHITA YOSHIO
IPC: F16D41/07
Filed: 1993-12-17
Abstract: PURPOSE:To realize easy manufacturing and a low cost. CONSTITUTION:A spiral groove 8c is provided on the outer peripheral surface of the outer ring 8 of a one-way clutch, and is integrally formed at the time of forming the housing of a stator 5 to be integrated with the housing. Preferably the spiral direction of spiral is set in a direction where the one-way clutch is pushed to the abutting side surface of the housing when the one-way clutch is in a locked condition.
Patent JP-H02162649-A (JP)
Title: Lead-acid battery
Inventor: INOUE TOSHIHIRO
IPC: H01M4/62
Filed: 1988-12-15
Abstract: PURPOSE:To enhance charging efficiency of positive and negative active materials by containing a surface active agent of perfluorosulfonate and an aromatic compound having a mercapto group in a lead-acid battery suitable for car engine starting, portable appliances, and disaster prevention. CONSTITUTION:A surface active agent of perfluorosulfonate represented by CaF2n+1SO3M (M shows an alkali metal), or a mixture of the surface active agent and an aromatic compound having a mercapto group (-SH) is contained in a lead-acid battery. The utilization of positive and negative active materials is thereby increased and the hydrogen overvoltage of a negative plate is decreased to enhance charging efficiency even in voltage controlled charging. The battery consists of positive and negative plates, a separator made of fine fibers, and an electrolyte comprising sulfuric acid having a specific gravity of 1.32. Potassium perfluorooctanesulfonate and 2-mercaptobenzimidazole are used as the surface active agent.
Patent JP-2001145157-A (JP)
Title: Communication method using single-frequency channel
Inventor: CHUU BON-FUU
IPC: H04M3/00
Filed: 1999-11-08
Abstract: PROBLEM TO BE SOLVED: To provide a communication method in which a single-frequency channel is used in a high-frequency radio communication system which performs processing without using electronic exchange system. SOLUTION: In a communication method using single-frequency channel, a first subscriber who wishes to make communication with a second subscriber inputs a message containing the transmitting-side identification number, transmitting-side area code, receiving-side identification number, receiving-side area code, and communication information to his mobile telephone set. A first communication base station receives, processes, and amplifies the signals. When both the first and second subscribers exist in the same communication area, the transmitting- and receiving-side area codes match each other. In this case, the first communication base station transmits the amplified signal directly to the mobile telephone set of the second subscriber.  When the first and second subscribers are located in different communication areas, the transmitting- and receiving-side area codes do not match each other. In this case, the first communication base station transmits the amplified signal to a second communication base station in the communication area, where the second scribers exists.
Patent JP-H10163507-A (JP)
Title: Zener diode
Inventor: HAMAGUCHI HIROSHI
IPC: H01L23/62
Filed: 1996-11-28
Abstract: PROBLEM TO BE SOLVED: To provide a Zener diode having an improved breakdown strength against surge by effectively causing the secondary breakdown, irrespective of a Zener characteristic semiconductor layer for regulating the Zener characteristic, without increasing the series resistance of a semiconductor substrate. SOLUTION: A Zener diode having a first conductivity-type semiconductor substrate 1, a first conductivity-type Zener characteristic semiconductor layer 3 having a specific resistance determined by the Zener characteristic and a second conductivity-type semiconductor region 4 formed in this semiconductor layer formed on the semiconductor substrate 1 comprises a high-resistance semiconductor layer 2, disposed between the semiconductor substrate 1 and the semiconductor layer 3, the layer 2 having a specific resistance higher than that of the semiconductor substrate 1.
Patent JP-H02161966-A (JP)
Title: Golf shaft working and heat insulating container
Inventor: KANBAYASHI MASAHIKO
IPC: A63B60/64
Filed: 1988-12-16
Abstract: PURPOSE:To prevent a golf shaft from contacting external air and to warm up the golf shaft as needed even while it is carried by providing a crimping part to crimp the golf shaft, which is formed in a colliding part on the central line of first and second enclosures, parallelly with the opening and closing shaft of a hinge. CONSTITUTION:A crimping part 8 is provided parallelly with an opening and closing shaft 5 of a hinge 3 in order to crimp a golf shaft 7 which is formed in a colliding part 6 on a central line A of a first enclosure 1 and a second enclosure 2. The crimping part 8 of such a golf shaft heating and insulating container crimps and fixes the tip part of the golf shaft 7 and air in the inside and outside of the heat insulating container is interrupted. A space part 4 in the heating and heat insulating container houses the tip part of the golf shaft 7 and forms an interval and a portable heat generating body can be built in. A cylindrical heat generating body 15 is incorporated in a cylindrical enclosure 23 to be the warming and heat insulating container and inserted through from a pipe 22 side of the golf shaft 7. Then, a prescribed part is warmed and the heat is insulated.
Patent JP-H07164601-A (JP)
Title: Plastic sheet with electroconductive surface
Inventor: FURUKAWA SADAFUMI
IPC: C08L51/00
Filed: 1993-12-17
Abstract: PURPOSE:To obtain super advantages such as mechanical strength, buckling strength, bend resistance, appearance, impact resistance, secondary processing, surface electroconductivity, heat resistance and solvent resistance as well as a long lasting stable surface specific resistance value by providing an electroconductive paint layer with a surface specific resistance value which is lower than a specific value on one surface of a base sheet of styrene resin composition having an excellent solvent resistance. CONSTITUTION:A plastic sheet with an electroconductive surface consists of an electroconductive paint layer with a surface specific resistance value of 10<10>OMEGA or less, provided, at least, on one surface of a base sheet of highly solvent- resistant styrene resin composition. The highly solvent-resistant styrene resin composition is a polymer alloy consisting of 1 to 50 pts.wt. of compatibilizer added to 100 pts.wt. of the resin composition comprising 90 to 50wt.% of styrene resin B and 10 to 50wt.% of polyolefin C. The compatibilizer to be used is one having 1 or less of the melt viscosity ratio C/B of the polyolefin C to styrene resin B at 160 to 250 deg.C of kneading and molding temperature and easily forming a skin layer of polyolefin C on the surface.
Patent JP-H06143149-A (JP)
Title: Grinding wheel and holder assembly for plane grinding machine
Inventor: GOTO TOMOAKI
IPC: B24D7/06
Filed: 1992-11-04
Abstract: PURPOSE:To perform uniform and maximum grinding of a work to be ground by a method wherein a cross angle between the extension lines of the long axes of each grinding wheel chip pair of a plurality of grinding wheel chip pairs is set steppedly and in a dispersed manner. CONSTITUTION:The radius line (a diameter passing through the rotation center of an annual holder 1) of the annual holder 1 is nipped between the two long axes of each grinding wheel chip of grinding wheel chips and the chips are positioned facing each other such that a distance between the ends, on the inner side of the holder, of the chips is increased to a value higher than that between the chips, on the outer ends of the holder, thereof. In a plurality of grinding wheel chips T1-T6 attached to the annular holder 1, cross angles theta1-theta6 each between the extension lines of the two long axes of the grinding wheel chips of each pair are set in a manner to be dispersed to all of six regions each having + or -3 deg. of each of 76 deg., 94 deg., 110 deg., 124 deg., 136 deg., and 146 deg..
Patent JP-H11148400-A (JP)
Title: Accumulator type fuel injection device for engine
Inventor: UEHARA TETSUYA
IPC: F02M37/00
Filed: 1997-11-19
Abstract: PROBLEM TO BE SOLVED: To prevent generation of diesel knocking noise and suppress emission of NOx by reducing pressure of a high-pressure fuel circuit including an accumulator chamber in good response to a change in a driving condition without degrading stability of an engine in an accumulator type fuel injection device. SOLUTION: This accumulator type fuel injection device, which is provided with a common rail involving an accumulator chamber 7 between a fuel supply pump 1 and a fuel injection valve 12, and a control unit 23 for controlling fuel injection amount and the pressure of the common rail according to an engine operating condition, is formed with a fuel pressure sensor 9 for detecting the pressure of the common rail, and a fuel delivery valve 10 for opening the common rail to a low pressure side, so as to reduce the common rail pressure rapidly by opening the fuel delivery valve if the detected pressure is higher than a targeted pressure predetermined according to the engine operating condition by a predetermined prescribed value or higher.
Patent JP-H08181394-A (JP)
Title: Semiconductor laser device and optical disk device provided with the same
Inventor: SHIMA AKIHIRO
IPC: H01S5/00
Filed: 1994-12-21
Abstract: PURPOSE: To provide a semiconductor laser device wherein the interval variation is little between light emitting points regardless of the environmental temperature change. CONSTITUTION: Two laser diodes 54, 59 are bonded to each other via a heat conducting connection leg body 106 in the manner in which electrodes 57, 61 formed on the main surfaces adjacent to light emitting points are made to face each other. The other main surface of the diode 54 is bonded to a submount 52 formed on a silver block 50. Thereby a semiconductor laser device wherein the interval between light emitting points is hard to change when the environmental temperature changes, and the temperature characteristics are stable can be obtained.
Patent JP-H11152288-A (JP)
Title: Di(carbohydrazido-o,n) calcium(ii) nitrate-hydrate and its dehydrated complex and their production and gas generator composition
Inventor: NISHIKAWA KAZUYOSHI
IPC: B60R21/264
Filed: 1997-11-19
Abstract: PROBLEM TO BE SOLVED: To obtain a new compound useful as a gas-generating component for air bags used for driver-protecting devices in automobiles. SOLUTION: Di(carbohydrazido-O,N) calcium (II) nitrate-hydrate of the formula. The compound of the formula is obtained, for example, by allowing calcium nitrate to react with carbohydrazide. For example, a method comprising allowing calcium nitrate tetrahydrate to react an about twofold amount of carbohydrazide in water under heating, concentrating the obtained reaction solution, cooling the concentrated solution to precipitate white crystals, if necessary, recrystallizing the crystals in a mixture solvent of water with an alcohol, washing the obtained crystals with ethanol, and subsequently drying the crystals in air for about 24 hr is adopted as a preferable embodiment. The obtained di(carbohydrazido-O,N) calcium (II) nitrate-hydrate is thermally dehydrated to give a dehydrated complex.
Patent JP-H09137075-A (JP)
Title: Pigment dispersant and pigment composition using the same
Inventor: KATO YOSHINORI
IPC: C09B67/20
Filed: 1995-11-14
Abstract: PROBLEM TO BE SOLVED: To obtain the above dispersion capable of providing a dispersion of a pigment having clarity, high coloring power, excellent in flow characteristics and preservation stability, useful as an ink, etc., comprising a coloring matter of a specific formula containing an amine component residue as an active ingredient. SOLUTION: This pigment dispersion comprises a coloring matter containing an amine component residue of formula I  R2 is a group of formula II [R4 and R5 are each H, a (substituted) <=40C (un) saturated alkyl, etc.; D is CH2 , etc.; (n) and (p) are each 0-5]; R3 is H, an alkyl, an alkoxy or a halogen; (j) is 0-2; (k) is 1-2; (m) is 0-3} (preferably 4-dimethylaminocyclohexylamino group, 4-diethylaminocyclohexylamino group, etc.,) an active ingredient. Preferably the residue in the coloring matter has a bonding group and is bonded to an organic coloring matter residue such as a phthalocyanine-based coloring matter residue. For example, chlorosulfonated copper phthalocyanine is reacted with 1-amino-4-N,N'-dimethylamino-cyclohexane under an alkali condition and precipitated with an acid to preferably give the objective dispersant.
Patent JP-H11148489-A (JP)
Title: Water atomizing device for turbo-compressor
Inventor: HASEGAWA KAZUMI
IPC: F04D27/00
Filed: 1997-11-19
Abstract: PROBLEM TO BE SOLVED: To properly control the amount of water atomization at all times, and surely reduce a compression work, namely necessary power. SOLUTION: This device is equipped with a water atomizing nozzle provided on the suction side 13 of a turbo-compressor 1, a temperature sensor 10 provided for the discharge side 12 of the turbo-compressor 1, and with a control means 11 controlling the amount of water atomization in such a way that the detected temperature of the temperature sensor reaches the target temperature set to be higher than the saturation temperature of vapor. Since temperature at the discharge side is controlled to be higher than the saturation temperature of vapor, atomized water is entirely voporized, and it is avoided that very small water drops remain because the amount of water atomization is too much.  Besides, since temperature at the discharge side 12 is so controlled as to be higher than the target temperature (higher than saturated temperature of vapoe), insufficient cooling due to the too little amount of water atomization can also be avoided. As a result, a compression work, namely necessary power can surely be reduced.
Patent JP-H07164907-A (JP)
Title: Positioning mechanism of speed change control lever
Inventor: OWADA TOSHINOBU
IPC: F16H61/18
Filed: 1993-12-17
Abstract: PURPOSE:To prevent undesirable oscillation of a control lever by making a locking lever operable by the hand to operate the control lever and by engaging the lower end of the locking lever with an engaging part of a positioning body fixed on a structure free to engage and to disengage. CONSTITUTION:A guide body 81 is provided on a control lever 4 free to slide in the longitudinal direction. A locking lever 82 roughly set along the longitudinal direction of the control lever 4 is provided on the guide body 81, and its upper end is arranged in the neighbourhood of a grip part 4A of the control lever 4 so as to make the locking lever 82 capable of slide operation. A positioning body 84 having a plural number of engaging parts 83 to engage with the lower end of the locking lever 82 free to engage and to disengage at a position to oscillate the control lever 4 is fixed on a structure 80. As this mechanism has an energizing means 85 to energize the locking lever 82 against the side of the positioning body 84, it is possible to prevent unwilling oscillation of the control lever 4 and to easily carry out release operation of the locking lever 82.
Patent JP-H08176434-A (JP)
Title: Polyvinyl chloride resin composition
Inventor: TOYOMASU NOBUYUKI
IPC: C08L75/04
Filed: 1994-12-21
Abstract: PURPOSE: To obtain a polyvinyl chloride resin composition which is flame- retardant and reduced in compression set. CONSTITUTION: This composition is prepared by melt-kneading a vinyl chloride polymer, a polymer polyol and an isocyanate compound having at least three isocyanate groups under applied shear and heat and further contains 20-40 pts.wt. antimony trioxide and 1-20 pts.wt. halophosphoric ester per 100 pts.wt. vinyl chloride polymer.
Patent JP-H06166504-A (JP)
Title: Treatment for raising purity of silicon nitride stock powder and silicon nitride powder
Inventor: MITOMO MAMORU
IPC: C04B35/626
Filed: 1992-11-27
Abstract: PURPOSE:To obtain silicon nitride powder suitable for producing silicon nitride sintered compact with excellent characteristics, i.e., high in mechanical strength and small in its variation, by grinding silicon nitride stock powder specified with beta-type content followed by treatment with an acid-contg. water or organic solvent. CONSTITUTION:Silicon nitride stock powder containing >=80wt.% of beta-type is ground so as to come to >=2mu in mean particle diameter followed by treatment with an aqueous ca.0.1 N acid (e.g. hydrochloric, sulfuric or nitric acid) or an organic acid (e.g. formic, acetic acid)-contg. organic solvent (e.g. methanol, ethanol, the weight ratio of the organic acid to the organic solvent being (1:1) to (1:2) or so), thereby eliminating Fe-dominant particles >=5mu in diameter and affording the objective high-purity silicon nitride stock powder <=0.5wt.% in Fe content. With the stock powder, silicon nitride sintered compact improved in mechanical strength and reduced in its variation can be produced.
Patent JP-H09162932-A (JP)
Title: Optical signal transmission device
Inventor: MAEDA TETSUO
IPC: H04B10/07
Filed: 1995-12-07
Abstract: PROBLEM TO BE SOLVED: To appropriately transmit even a binary signal where the same values continue for more than a prescribed period. SOLUTION: A level signal detection circuit 24 detects whether transmission signals 211 -21n are in the state of level signals where the same values continue for more than the prescribed period or not. When they are in the state of the level signals, a modulation circuit 25 transmits a pseudo signal being a pulse signal whose period is set to be the prescribed period instead of the transmission signals 211 -21n to a scramble circuit 26. The modulation detection circuit 34 of a reception device 12 detects whether a signal which is de-scrambled in a de-scramble circuit 33 is the pattern of the pseudo signal or not. When it is the pattern of the pseudo signal, it is demodulated into the level signal. Thus, the signal where the same values continue for more than the prescribed period can be scrambled.  Then, a reception-side can use an AC couple amplifier satisfactory in reception sensitivity.
Patent JP-2001131207-A (JP)
Title: Polymer manufacturing method
Inventor: MABUCHI TOMOYUKI
IPC: C08F20/00
Filed: 1999-11-09
Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a polymer which can greatly reduce the content of the monomer raw material remaining in the polymer. SOLUTION: According to this method for manufacturing a polymer, a monomer is supplied continuously or intermittently to a polymerizer to carry out polymerization in the presence of a radical polymerization initiator (a). An azo-type polymerization initiator (b) which has a 10-hr half-life period at 50 deg.C or below is added in the range of 0.5-20% by mass based on the radical polymerization initiator (a) after the completion of the supply of the monomer or when the reaction rate of the monomer reaches 95 mol% or more in order to perforrn aging reaction at a temperature in the range specified in formula I: Tb+10<=T<=100 [wherein Tb is a temperature (in  deg.C) at which the azo-type polymerization initiator (b) has a 10-hr half-life period; and T is a temperature (in  deg.C) for the aging reaction].
Patent JP-H07175689-A (JP)
Title: Catalog managing file optimizing system
Inventor: TAKANO SHUNEI
IPC: G06F12/00
Filed: 1993-12-20
Abstract: PURPOSE:To reduce the burden of a user for catalog information by automatically deleting the catalog information, which real file does not exist in a large capacity storage device, from a catalog managing file. CONSTITUTION:A large capacity storage device 1 stores a lot of files. A catalog managing file 2 stores the catalog information. A catalog retrieving means 3 retrieves the catalog managing file 2 and successively presents the catalog information. A catalog deleting means 4 deletes the catalog information of any designated file from the catalog managing file 2. A catalog rearranging means 5 rearranges, the catalog information in overflowing areas inside the catalog managing file 2 into the empty areas of basic areas. When the file shown by the catalog information possessed from the catalog retrieving means 3 is not stored in the large capacity storage device 1, a real file retrieving means 6 deletes that catalog information by using the catalog deleting means 4 and rearranges the catalog information in the overflowing areas into the basic areas by using the catalog rearranging means 5.
Patent JP-2001139406-A (JP)
Title: Expellant of ectoparasite for pet
Inventor: MIZUTANI MASATO
IPC: A01N25/24
Filed: 1999-11-10
Abstract: PROBLEM TO BE SOLVED: To obtain an expellant of an ectoparasite for a pet, safe to the pet and exhibiting high terminating effects. SOLUTION: This excellent expellant of the ectoparasite for the pet contains 3-phenoxybenzyl 2,2-dimethyl-3-(2-methyl-1propenyl)cyclopropane-1-carboxylate as an active ingredient, and a vegetable oil or a purified product thereof as a spreading component, and is in shape of a liquid preparation for external use.
Patent JP-H11155111-A (JP)
Title: Digital satellite broadcast receiver
Inventor: KONUMA MITSUYA
IPC: H04N5/445
Filed: 1997-11-20
Abstract: PROBLEM TO BE SOLVED: To provide a digital satellite broadcast receiver by which digital information such as a personal mail is viewed in substantially real time, while a program is being viewed by displaying the digital information such as personal main on a prescribed position of a screen as a telop. SOLUTION: Upon receiving digital information such as the personal mail superimposed on a digital satellite broadcast, an IRD 4 stores the digital information in an information storage section 4d and makes an LED 8b1 of an operation display section 8 blink, a telop control section 4k automatically reads the digital information stored in the information storage section sequentially and writes the signal onto a prescribed position of a VRAM 4e, then a display section 10 display the digital information such as personal mail as a telop. Thus, the digital satellite broadcast receiver, with which the digital information such as the personal mail can be viewed in substantially real time while viewing a program, is provided.