baber/WOPTO huggingface dataset:
Patent JP-S5826855-A (JP)
Title: Production of 3-alkoxy-2-propenenitrile
Inventor: FUJII KOUZOU
IPC: C07C67/00
Filed: 1981-08-12
Abstract: PURPOSE:3,3-Dialkoxypropionitrile is brought into vapor-phase contact with a solid acid catalyst to produce the titled compound used as a synthetic intermediate in fine chemicals in high yield. CONSTITUTION:The vapor-phase contact of 3,3-dialkoxypropionitrile of the formula: (RO)2CHCH2CN (R is 1-4C alkyl) (3,3-dimethoxypropionitrile or 3,3-diethoxypropionitrile) with a solid acid catalyst (phosphoric acid on silica or phosphoric acid on silica-titania, acid clay or silica-alumina) is carried out at 200- 600 deg.C, preferably 250-450 deg.C to give the objective compound of RH=CHCN. The 3,3-dialkoxypropionitrile may be used in a pure form or may be diluted with an inert gas such as nitrogen, argon or helium. The pressure during the catalytic reaction is not limited as far as the reaction system is kept in a vapor phase.
Patent JP-H11305379-A (JP)
Title: Heat developable photosensitive material
Inventor: SHIMA TETSUO
IPC: G03C1/498
Filed: 1998-04-20
Abstract: PROBLEM TO BE SOLVED: To obtain a heat-developable photosensitive material having high sensitivity during exposure and having high image density. SOLUTION: This heat developable photosensitive material contains a photosensitive silver halide, org. silver salt, reducing agent and binder on a supporting body. The org. silver salt consists of planer particles having >=3 aspect ratio and oriented along the plane of the supporting body. Preferably, when an electron microscope image of the cross section of the planer org. silver salt particles is processed into fine lines to obtain lines corresponding to the respective planer org. silver salt particles, the lines give 80 deg. to 100 deg. average angle from the perpendicular direction to the supporting body and <=85% orientation degree defined by the following formula.  The definition is orientation degree = (standard deviation of the angles of lines from perpendicular direction to the supporting body)/(average angle of lines from the perpendicular direction of the supporting body) × 100.
Patent JP-S61283277-A (JP)
Title: Synchronizing signal generator
Inventor: MORIMOTO TAKESHI
IPC: H04N5/06
Filed: 1985-06-10
Abstract: PURPOSE:To form a synchronizing signal generator locked from outside stably the performing evenly a phase lock on an outside horizontal synchronizing signal without making a PLL to follow to the sudden jitter of a horizontal synchronizing signal in an outside reference signal. CONSTITUTION:As a circuit constitution, a phase comparator (PC) 6 which consists of a PLL15, a low-pass filter (LPF) 7, an oscillator (VCO) 8 and a divider (1/N) 9 are added. Thereby, a horizontal information PHE which is the output of the PLL15 is not followed to the sudden jitter of a horizontal synchronizing signal PH obtained at a separation circuit 14 and so that the horizontal information PHE is phase-locked to the average phase of the horizontal synchronizing signal PH, a stable reset can be obtained even when the horizontal information is added on the reset terminal of a counter 3.
Patent JP-H09305273-A (JP)
Title: Uninterruptive power unit
Inventor: IWAO HIDEKI
IPC: H02J9/00
Filed: 1996-05-21
Abstract: PROBLEM TO BE SOLVED: To make the uninterruptive power unit detect start-up trouble when a terminal device is powered ON, turning on the power source again, and make a recovery by providing the uninterruptive power unit with a monitor function for the monitor. SOLUTION: A monitor circuit which judges that the terminal device is started up normally when a normal sequence is obtained a certain time after the power source is turned on since the signal level sequence is constant at the time of the start-up process of the terminal device, but judges that the start-up process is abnormal when not is incorporated in the uninterruptive power unit 11 to monitor the terminal device. Then if it is judged that the process is abnormal, the uninterrupted power unit 1 tries to turn on and off AC output to the terminal device and makes a recovery from the star-up trouble. Here, the uninterruptive power unit 11 and terminal device are connected by RS232-C as a conventionally used interface, and a power failure report signal, a battery capacity decrease signal, and a remote uninterruptive power source shut-down signal are assigned.
Patent JP-S63289036-A (JP)
Title: Prepreg and copper-clad laminate
Inventor: TANNO TOMIO
IPC: C08G73/00
Filed: 1987-05-22
Abstract: PURPOSE:To form a prepreg comprising an improved resin-impregnated base protected from infiltration of a plating solution and to form a copper-clad laminate utilizing the same, by impregnating a specified low-dielectric constant glass cloth or glass mat with a varnish obtained by reacting specified unsaturated bisimides with a diamine. CONSTITUTION:A prepreg is formed in the following way. Namely, an unsaturated bisimide (A1) which, among those of formula I (wherein R1, R2, R4 and R5 are each H, CH3, C2H5 or another hydrocarbon group and R3 is a hydrocarbon group), has H atoms. as R1, R2, R4 and R5 is mixed with an unsaturated bisimide (A2) which, among them, has CH3 or C2H5 as at least one of R1, R2, R4 and R5 at a molar ratio of A2-A1 of 0-0.50. The obtained mixture (A1+A2) is reacted with a diamine (B) of formula II (wherein R6 is a hydrocarbon group) at a molar ratio of (A1+A2) to B of 1.7-3.0 to obtain a varnish, and a low- dielectric constant glass cloth or glass mat containing 65-90% SiO2 and 7-30% B2O3 and pretreated with a silane coupling agent is impregnated with this varnish.
Patent JP-H01295129-A (JP)
Title: Differential pressure measuring instrument
Inventor: MORITA SAICHIRO
IPC: G01L13/00
Filed: 1988-05-23
Abstract: PURPOSE:To reduce the size and weight of the differential measuring instrument by constituting a differential pressure measuring instrument main body part and a changeover valve in one body and omitting a piping. CONSTITUTION:A connection hole 43 is connected to the high-pressure side of liquid to be measured and a connection hole 44 is connected to the low- pressure side. Then the connection holes 43 and 44 are normally linked respectively, so pressure to be measured is applied from the right and left sides of the main body 11 and a measurement diaphragm 13 is displaced according to differential pressure to be measured. The electrostatic capacity between fixed electrodes 133 and 134 and measurement diaphragm 13 varies differentially by the displacement of the measurement diaphragm 13 to obtain an electric signal corresponding to the differential pressure. Further, the zero point of the device is adjusted by moving a valve shaft 52 in the axial direction of the valve shaft 52, cutting off the communicating of the connection hole 44, and communicating the connection hole 43 with the pressure receiving chamber side of the connection hole 44.
Patent JP-H0722202-A (JP)
Title: Thick film resistor composite
Inventor: UIRIAMU BOORANDO
IPC: H01C17/065
Filed: 1994-06-07
Abstract: PURPOSE: To provide a thick-film resistor compsn., having high voltage durability typically with respect to an electrostatic discharge(ESD) and adjustable resistance and TCR values. CONSTITUTION: This compsn. consists of a pulverized solid of Ru oxide 5-25 wt% as a conductive component and glass 30-70 wt% as an inorg. binder. The solid of Ru oxide has 1) a mean specific surface area of 30 m<2> /g or more and a mean grain size of 160 Å or more or 2) a mean specific surface area of 18-30 m<2> /g or more, and a mean grain size of 220 Å or more.
Patent JP-S5248891-A (JP)
Title: Method of dressing grinding wheel
Inventor: ASAE TOSHIO
IPC: B24B53/00
Filed: 1975-10-17
Abstract: PURPOSE: To safely and efficiently conduct a dressing work by utilizing free particles without manual work. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H09312401-A (JP)
Title: Semiconducfor device
Inventor: ONODA KUNIHIRO
IPC: H01L27/092
Filed: 1996-05-21
Abstract: PROBLEM TO BE SOLVED: To avoid a disadvantage caused by the variations of a threshold voltage resulting from variations in the thickness of a silicon-on-insulator(SOI) layer. SOLUTION: Sequentially formed on a silicon substrate 15 are a polysilicon film 16, a silicon oxide film 17 and thin films SOI layers 18 and 21 to form a CMOS circuit. An impurity-doped polysilicon layer 28 is disposed as opposed to P- and N-channel MOS FETs to store charges therein to adjust threshold voltages of the MOS FETs. An impurity-doped polysilicon layer 30 is disposed as opposed to the P- and N-channel MOS FETs, so that a bias voltage switching circuit applies a potential to increase absolute values of the threshold voltages of the MOS FETs in a wait mode, and applies a potential to decrease the absolute values of the threshold voltage thereof in its operational mode.
Patent JP-H11317085-A (JP)
Title: Circuit and method for program verification
Inventor: SUGIYAMA HISANOBU
IPC: G11C11/56
Filed: 1998-05-08
Abstract: PROBLEM TO BE SOLVED: To provide a program verifying circuit which is assembled in a memory cell, that stores multivalued data and is electrically reloadable, has a simple circuit constitution and causes no increase in the layout area. SOLUTION: The program verifying circuit is constituted of a variable threshold voltage field effect transistor TRn having plural input gate electrodes 47A and 47B and a latch circuit 20. The circuit 20 is connected to one of the source/ drain regions of the transistor TRn and also connected to a memory cell through a bit line BT. One of the electrodes of the transistor TRn , i.e., the electrode 47A is connected to the memory cell through the line BT. A potential is applied to the other electrode 47B, to control the connection/disconnection of the transistor TRn .
Patent JP-H09304349-A (JP)
Title: Wet magnetic particle examination method and device
Inventor: AKUSAWA SHOJIRO
IPC: G06T7/00
Filed: 1996-05-21
Abstract: PROBLEM TO BE SOLVED: To enable the upper and lower surfaces of steel to be subjected simultaneously to wet magnetic particle examination by surely excluding an extra magnetic particle solution throughout the periphery of the steel. SOLUTION: A wet magnetic particle examination method comprises arranging air ejection nozzles 25 around steel A, setting the circumferential intervals among positions where jets from the nozzle holes collide against the surface of the steel to be smaller than the diameter of a liquid exclusion area 47 formed by the jets ejected from the nozzle holes, and forming the liquid exclusion area 47 which is continuous throughout the periphery of the surface of the steel A, to exclude an extra magnetic particle solution throughout the periphery. Then magnetic particles retained in a defective part are detected.
Patent JP-H02303547-A (JP)
Title: Crushing tooth of sintered ore crushing machine and its production
Inventor: FUJISAWA YOSHIYUKI
IPC: B02C13/28
Filed: 1989-05-18
Abstract: PURPOSE:To improve the durability to high-temp. wear by overlaying the tips of a white cast iron onto the front ends of base materials for fang teeth and receiving teeth and tightly holding the fine pieces of a sintered carbide alloy and/or the sintered polyhedral bodies of a sintered hard alloy on the front end faces and side faces of the tips. CONSTITUTION:The crushing teeth to be mounted to a crushing machine for blooming the ore material sintered for blast furnaces at high temp. are constituted of the fang teeth 7 and the receiving teeth 1. The tips 10, 4 of the white cast iron forming desired shapes are respectively overlaid on the front ends of the base materials for the fang teeth 7 and the receiving teeth 1. The fine pieces 11, 5 of the sintered carbide alloy and/or the sintered polyhedral bodies of the sintered hard alloy are tightly held on the respective front end faces and desired side faces of the tips. As a result, the durability to the abrasion wear at a high temp. is exceedingly improved.
Patent JP-S5752011-A (JP)
Title: Sealed container for optical fiber and its manufacture
Inventor: YAMASHITA SHIGEO
IPC: H01S5/00
Filed: 1980-09-12
Abstract: PURPOSE:To manufacture a container which facilitates axis alignment and is free from an axis shift, by fixing a plastic metallic jig, having an optical fiber, to the  opening window of a sealed container. CONSTITUTION:In the wall 20 of a sealed container, a metallic jig 21 made of 0.5- 3phi annular oxygen-free copper is fitted and then a 0.1-1phi optical fiber 22 is inserted into this jig 21. Parts where the wall 20, jig 21 and fiber 22 come into contact are fixed by being coupled or bonded mechanically or with an adhesive, etc. For the optical axis alignment and optical coupling of the optical fiber 22 and an opltical element, external force is applied to prescribed positions of the jig by fine positioning equipment, such as a manipulator, and consequently the metal constituting the jig 21 deforms to shift in position downward by deltaX. The optical fiber 22 also shifts in position downward by deltaX corresponding to align their optical axies to each other.
Patent JP-S5750505-A (JP)
Title: Method for assembling separating cell
Inventor: SHIMANO KUNIO
IPC: B01D53/22
Filed: 1980-09-12
Abstract: PURPOSE: To make thin-walled hollow membranes without collapsing their shapes and to decrease the fraction detective of modules by putting liquid into said membranes, keeping both ends sealed and assembling a hollow membrane module in this state.  
     CONSTITUTION: Liquid 2 is put into thin-walled hollow membranes 1, and both ends of the membranes 1 are tied and sealed by cords 3. Plural pieces of the membranes 1 are then inserted into a cylindrical body 5 having a discharge nozzle 4 in the intermediate part and formed to a large diameter at both ends in such a way that both ends of said membranes project respectively from both end opening faces 6 of the body 5. Flow stops 7 are packed into the clearances between the inner ends in the large diameter parts of the body 5 and the plural membranes 1 and adhesive agents 8 are filled up to the opening end faces 6 of the body 5. After the adhesive agents 8 have set, the projecting parts of the membranes 1 are cut off and the liquid 2 is removed from the inside. Flanges for connection having nozzles are mounted to the end parts of the body 5. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-H08298523-A (JP)
Title: Router
Inventor: TAKAHASHI MUNEHIKO
IPC: H04L12/66
Filed: 1995-04-26
Abstract: PURPOSE: To prevent wasteful charging even if the equipment for transmitting/ receiving a keep-alive packet and a keep-alive response packet is erroneously connected to a LAN in a router installed between the LAN and a public exchange network. CONSTITUTION: The local-side router 3 is provided with a function for disconnecting a line on the ISDN exchange network 7 when a transmission packet and a reception packet do not exist for prescribed time. A keep-alive packet filtering means 32 in the local-side router 3 is provided with a function for abolishing the keep-alive packet when it is outputted from a local-side equipment 2 to a remote-side equipment 5. When only the keep alive packet is transmitted from the local-side equipment 2, a system becomes a state where the transmission packet and the reception packet do not exist. When such state continues for a prescribed time, the local-side router 3 disconnects the line.
Patent JP-2000316520-A (JP)
Title: Heat-resistant mayonnaise
Inventor: HAYASHI KUNIHIKO
IPC: A23L27/60
Filed: 1999-05-06
Abstract: PROBLEM TO BE SOLVED: To obtain heat-resistant mayonnaise, scarcely loosing the fluidity when heat-treated, not generating stuffy odor and useful for producing retort foods and food for microwave oven excellent in texture by constituting mayonnaise so as to include phospholipase-treated yolk and gelatinized starch and so as not to include whole egg or albumen. SOLUTION: This heat-resistant mayonnaise comprises phospholipase-treated yolk in an amount of preferably 2-8 wt.% based on product and gelatinized starch in an amount of preferably 10-40 wt.% based on product and does not comprise whole egg or albumen. The phospholipase-treated yolk includes a yolk obtained by reacting the yolk with a phospholipase A2 which is a phospholipidase to lysonate phospholipid binding to yolk protein. The decomposition degree of phospholipid can be known by a substitution rate (%) of substitution of phospholipid of yolk which is present before phospholipase treatment to lysophospholipid produced by enzymatic treatment, and it is preferable to use the yolk having >=50% substitution rate. A gelatinized starch obtained by adding pure water to raw starch and gelatinizing the starch by heating is used as the gelatinized starch.
Patent JP-S5250108-A (JP)
Title: Charge pulse deletion system
Inventor: KAGEYAMA SEISHI
IPC: H04M11/06
Filed: 1975-10-20
Abstract: PURPOSE:The data transmission is prohibited during charge pulse is generated in order to eliminate the effect by charge data to signal data.  Thus, an errorless and accurate data transmission is secured with high dependability.
Patent JP-H09284947-A (JP)
Title: Transparent joint box
Inventor: KAWAGUCHI TAKEO
IPC: H02G15/117
Filed: 1996-04-11
Abstract: PROBLEM TO BE SOLVED: To open and expose a locking hole or the upper part of a locking groove and to make it possible to easily lock a connection bundle with locking member such as connection band, etc., by constituting a transparent joint box so that a surface edge section on a box surface is positioned in the rear deviating from the upper part of a locking hole or a locking groove formed in a locking section of the bottom. SOLUTION: A transparent joint box 1 is so constituted that a position of a surface edge section 15 on a box surface 2 of the transparent joint box 1 for dielectically protecting a connection bundle A coincides with a position in the rear deviating from the upper part of a locking hole 4 formed in a locking section 3. By the constitution, the upper part of the locking hole 4 is opened to make it easy to pass locking member such as connection band, etc., and connection locking work can be facilitated. The connection bundle A is never held and locked between the box surface 2 and the locking section 3 of the bottom, flexibility of the transparent box 1 is not used, and accordingly, the box can be made of hard resin.
Patent JP-H11318735-A (JP)
Title: Bathtub
Inventor: SUNAGA HIROSHI
IPC: A47K3/12
Filed: 1998-05-08
Abstract: PROBLEM TO BE SOLVED: To allow a user to take a bath in a relaxing attitude of laying himself on his back by forming a foot receiving part making soles of his legs supportable thereon being stretched with the ankle on the bottom surface thereof in a bathtub which allows stretching of his legs almost to the fullest therein with a backrest wall inclined at a specified angle to a bottom surface of the bathtub. SOLUTION: This bathtub 1 is constituted of a bottom wall 11 made rectangular as viewed on a plan, a backrest wall 12 erected being inclined on the side of one short side of the bottom wall 11, foot walls 13 erected on the side of another short side thereof and sidewalls 14 on both sides erected on the side of a long side of the bottom wall 11. The bathtub 1 has the backrest wall 12 inclined at an angle K of 20-45 to the bottom wall 11 to allow a bathing person to take a bath in an attitude of laying himself on his back stretching his legs almost to the fullest. A foot receiving part 17 is formed along a boundary part of the bottom wall 11 and the foot walls 13 to allow supporting of the sole of legs stretched with the ankles thereof on the bottom surface thereof.  Moreover, in the bathtub 1, a support body 2 is fastened on the bottom wall 11 and the backrest wall 12 to support the body of the bathing person H taking an attitude of laying himself on his back.
Patent JP-H0424220-A (JP)
Title: Insect-proof acrylic synthetic fiber
Inventor: ONO MASAHITO
IPC: D06M101/16
Filed: 1990-05-15
Abstract: PURPOSE:To provide the title fiber good in resistance to washing, dry cleaning and moist heat, containing a specified amount of benzoic acid etc., with the extraction rate with an alcohol-benzene mixture not higher than a specified value. CONSTITUTION:The objective fiber containing 0.05-3 (pref. 0.1-2)wt.% of benzoic acid and/or salicylic acid with the 60 min-extraction by immersion with an alcohol-benzene mixture accounting for <=40 (pref. <=30)% of the benzoic acid and/or salicylic acid content. In case of the combined use of benzoic acid and salicylic acid, it is preferable that the weight ratio of the latter to the former be 0.5-2 to l.
Patent JP-S5650550-A (JP)
Title: Semiconductor device
Inventor: MOMOSE KENICHIROU
IPC: H01L23/48
Filed: 1979-10-02
Abstract: PURPOSE:To improve the soldering characteristics by constituting the lead part of the semiconductor device by the alloy comprising copper, nickel, and iron and giving adequate thermal expanding characteristics with respect to the packaging material. CONSTITUTION:The alloy comprising 1-25wt% of copper, 25-50wt% of nickel, and iron for the rest of the alloy is used for the lead parts, e.g. a lead frame and lead wires, of the semiconductor device. The thermal expansion coefficient of said alloy can be freely changed from the very low value by changing the ratio of its constituents. The properties such as strength, repeated bending, and the like are excellent, and the soldering characteristics are especially excellent in comparison with conventional iron-and-nickel alloys. Semiconductor devices such as diodes, transistors, and integrated circuits are considered for this applications. It is especially useful in the case the packaging is performed with the lead portions directly contacted with a glass material.
Patent JP-S62281109-A (JP)
Title: Vertical magnetic head
Inventor: TSUYUKI TADASHI
IPC: G11B5/127
Filed: 1986-05-30
Abstract: PURPOSE:To improve reproduction efficiency, by using a core on one side of a ring-shaped head as the return path of a magnetic flux at a recording time, and using the ring head as a reproducing head at a reproduction time. CONSTITUTION:A main magnetic pole exciting head writes a signal at a part on which DC erasure has been performed. It is necessary to attracted the magnetic flux generating from the main magnetic pole exciting head by a certain part, and the attracting function of the magnetic flux is performed by the core on one side forming a ring head 102, therefore, it is possible to maintain an appropriate recording efficiency. The reproduction of the signal is performed by the ring head setting 102 and 103 as magnetic cores. When the reproduction efficiency between the ring head, and the main magnetic pole exciting head are compared, the ring head has the reproduction efficiency considerably better than that of the latter, therefore, it is preferable to perform the reproduction by the ring head such as the vertical magnetic head in the said invention at the reproduction time, judging from a reproduction efficiency point.
Patent JP-H10296843-A (JP)
Title: Manufacture of tank with pipe
Inventor: KOSAKA HIROYUKI
IPC: B29C49/20
Filed: 1997-04-30
Abstract: PROBLEM TO BE SOLVED: To surely prevent blocking of a part to be a pipe of a parison and to enable reliable elimination of clogging of the pipe even when the pipe integral with a tank main body is of a small bore and long, in particular. SOLUTION: A parison 14 is disposed between the splits of a blow mold 7 having a cavity for molding a tank main body 2 and a pipe 3 integral with the tank main body 2. Before clamping the blow mold 7, a pipe bore regulating body 15 and an opening part bore regulating body 16 are inserted into prescribed parts in the parison 14. A little pressure fluid is introduced into the parison 14 from the pipe bore regulating body 15 and then the blow mold 7 is clamped. The pressure fluid is introduced into the parison 14 from the opening part bore regulating body 16 subsequently and blow molding is conducted.