baber/WOPTO huggingface dataset:
Patent JP-H0616615-A (JP)
Title: Production of fluorinated phthalonitrile derivative
Inventor: KAIEDA OSAMU
IPC: C07B61/00
Filed: 1992-07-03
Abstract: PURPOSE:To provide a method for efficiently producing the fluorinated phthalonitrile derivative in a high yield and in a good purity. CONSTITUTION:3,4,5,6-Tetrafluorophthanonitrile is reacted with a nucleophilic substituent of formula I (X is O, S; Y is O, S, group of formula II, group of formula II), e.g. tetrafluorohydroquinone, in the presence of a basic substance in an organic solvent in a ratio of the nitrile the quinone of >=8:1, preferably 15-30:1, at -5 to 150 deg.C, preferably 40-100 deg.C, to produce a compound of formula IV, e.g. 1,4-bis(3,4-dicyano-2,5,6-trifluorophenoxy)tetrafluorobenzene. The fluorinated phthalonitrile derivative is useful as an intermediate raw material for optical materials, wiring board materials, photosensitive materials, liquid crystal materials, especially as an intermediate for the optical materials and the wiring board materials.
Patent JP-S6155140-A (JP)
Title: Polyphenylene ether composition
Inventor: FUJITA YUJI
IPC: C08L35/06
Filed: 1984-08-27
Abstract: PURPOSE:The titled polyphenylene ether composition having high heat resistance and improved moldability, comprising a polyphenylene ether resin and a p-methylstyrene/maleic anhydride copolymer. CONSTITUTION:A polyphenylene ether composition comprising 70-20wt% polyphenylene ether resin of the formula (wherein R<1> and R<2> are the same or different and each represents a 1-6C alkyl, 6-8C aryl, a halogen or hydrogen and n is 50-400), e.g., poly(2,6-dimethyl-1,4-phenylene)ether and 30-80wt% copolymer comprising p-methylstyrene (with a p-isomer content >=about 80%) with maleic anhydride in a ratio of 60-99:40-1wt% (weight-average MW of about 1,000- about 1,000,000 and MW distribution of about 1.5-4.0).
Patent JP-H0466530-A (JP)
Title: Tablet for stabilizing action of 3-oxygermylpropionic acid and common cold syndrome therapeutic agent from composition of the tablet as principal ingredient
Inventor: SAWAI KIICHI
IPC: A61K31/405
Filed: 1990-07-04
Abstract: PURPOSE:To obtain a drug containing a specific 3-oxygermylpropionic acid and a cellulosic stabilization carrier as principal ingredients, thus showing toxicity-reducing effect on the formulated drug because it has excellent storage stability and sustain sufficiently the pharmacological activity even after administration in vivo. CONSTITUTION:The tablets contains 3-oxygermylpropionic acid of the formula (n is 1 or more integer) which has high stability, and physical properties of 2.23 specific gravity, 1.57 solubility in water at 20 deg.C, and about 230 deg.C melting point, as well as a cellulosic stabilization carrier such as hydroxypropylcellulose, as principal ingredients, when necessary, further aspirin and brufen, an antipyretic and antiinflammatory analgesic such as indomethacin whose side-effects are pointed out. The mixture is made into tablets which can be used for treating common cold syndrome safely with activity-stabilizing effect after administration without side-effect such as gastrointestinal disorder.
Patent JP-H0530741-A (JP)
Title: Power supply
Inventor: IIDA TAKESHI
IPC: H02M3/28
Filed: 1991-07-17
Abstract: PURPOSE:To solve a problem of a power supply for digital audio equipment in which switching signals, radiated or sneaked on feeder line, cause erroneous function of other circuits or degradation of audio performance and to provide a downsized high performance digital audio equipment. CONSTITUTION:An error amplifier 1 compares a divided output voltage from a rectifying circuit 2 with a reference voltage 3 and then amplifies the divided output voltage. A comparator 4 compares the output from the error amplifier 1 with the output from an externally synchronizable triangular wave oscillation circuit 8 which is oscillating at a multiple of sampling frequency. Output from the comparator 4 is connected with a switching circuit 5 and then it is boosted through a coil 6 and rectified through a rectifying circuit 2 to produce a DC voltage. A multplexing circuit 9 multiplexes the sampling frequency and delivers the multiplexed sampling frequency to the triangular wave oscillation circuit 8. Consequently, the triangular wave oscillation circuit 8 oscillates at a multiple of the sampling frequency.
Patent JP-H0845005-A (JP)
Title: Magnetic tape recording and reproducing device
Inventor: TASAKA SHUICHI
IPC: G11B5/09
Filed: 1994-07-28
Abstract: PURPOSE:To prevent the occurrence of reproducing abnormality such as jumping of sound, etc., due to disturbance such as impact and vibration, etc. CONSTITUTION:An output signal from a 2nd magnetic head 32 is amplified by a read amplifier 34 and stored for a fixed time in a memory circuit 35, and is also outputted to a bit rate detecting circuit 36. Then, the stored output signal is delayed by a moving time required for moving a magnetic tape 2 from the 2nd magnetic head 32 to a 1st magnetic head 31 and outputted to a signal changeover switch 37 by the memory circuit 35. Consequently, the output signals regenerated in the same position on the magnetic tape 2 are simultaneously inputted to the signal changeover switch 37. When a bit rate detected from the output signal from the 1st magnetic head 31 becomes a value of deviating from a bit rate setting range, a changeover signal is outputted to the changeover switch 37 by the bit rate detecting circuit 36.
Patent JP-H0464535-A (JP)
Title: Sheet feeding device
Inventor: KIKUCHI YUTAKA
IPC: B65H1/24
Filed: 1990-07-04
Abstract: PURPOSE:To facilitate refill of sheets by driving a feed roller through a clutch, and allowing the intermediate plate of a tray to approach or separate to/from the feed roller through the action of a train of cams furnished on the shaft of feed roller. CONSTITUTION:The drive force of a drive shaft 16 is transmitted to a feed roller 15 through an electromagnetic spring clutch 39. Each sheet P1 on a sheet accommodation tray 12 is fed with rotation of the feed roller 15. When a sensor 42 senses passage of the sheet P1 fed, a computer gives the remaining current feed time command to an electric circuit 40 of the clutch 39, and one cycle of sheet feeding is completed. A train of cams 45 are mounted on the drive shaft 16, and an intermediate plate 30 in the fore half of the tray 12 is energized in the direction of approaching the feed roller 15 with an eccentric cam 45a with half a turn of the feed roller 15, and now it is possible to feed sheet. Another half a turn will cause separating, and repetitions provide possibility of continuous sheet feeding. Refill of sheet to the tray 12 can be facilitated by stopping the operation in this separated state.
Patent JP-2000005006-A (JP)
Title: Frame
Inventor: IMAO KAITO
IPC: A47G1/16
Filed: 1998-06-24
Abstract: PROBLEM TO BE SOLVED: To provide the frame of a simple structure capable of adopting an optimum hanging and fixing method corresponding to the condition of a wall surface by one kind of a hanging metal fitting. SOLUTION: For a frame main body 1, an outer peripheral frame is formed by connecting the respective end faces of plural frame materials 6a-6d by corner members 7. The two hanging metal fittings 2 are detachably attached to one of the frame materials 6a-6d of the frame main body 1. The respective hanging metal fittings 2 are composed by projectingly providing an engaging piece provided with a falling prevention part expanded to both sides on the surface of a base plate provided with a hole for hanging and fixation. The respective frame materials 6a-6d of the frame main body 1 are provided with an engaging groove 13 for freely slidably engaging the engaging piece of the hanging metal fitting 2 and an opening part 50 capable of inserting and detaching the falling prevention part of the engaging piece to/from the engaging groove 13.
Patent JP-S6454766-A (JP)
Title: Jfet and its manufacture
Inventor: MAIKURU AARU SHIIKURISUTO
IPC: H01L21/8222
Filed: 1988-07-15
Abstract: PURPOSE: To improve the production yield by using an Si substrate of a conductivity type, having specified crystal orientation to be hardly affected by variations due to the stress and temp. CONSTITUTION: A buried collector 7 is formed on a p-type Si substrate 1, having desired crystal orientation (100) through a patterned first oxide layer, an n-type epitaxial layer 11 is grown in the substrate 1, a p-type impurity is diffused by the thermal decomposition in the layer 11 up to the substrate surface to form an isolated region 17, using a photoresist 13, a second oxide layer 19 is grown in the region 17 to deposit a p-type impurity 21 on the top face of the layer 11, the layer 19, etc., are removed, and a third oxide layer 23 is formed. Corresponding region of the layer 19 is patterned, the impurity 21 is diffused in the layer 11 to form a source 25 and a drain 27, the layer 23 is again patterned and N-type impurity is thermally deposited to form an emitter region.  Using this substrate having a crystal orientation (100), the parameter variations due to stresses and temp. become small so that the yield of JFET is enhanced.
Patent JP-H0463810-A (JP)
Title: Acrylic-norbornene terpolymer and preparation thereof
Inventor: KUBO KEIJI
IPC: C08F222/40
Filed: 1990-07-03
Abstract: PURPOSE:To prepare the title terpolymer giving a molded item excellent in mechanical, optical, and thermal characteristics by subjecting a specific (meth) acrylic ester, a compd. having a norbornene backbone, and a compd. radical- polymerizable with the compd. having the norbornene backbone to radical polymn. CONSTITUTION:An acrylic or methacrylic ester of formula 1 (wherein R<1> is H or methyl; and R<2> is an optionally substd. 1-12C aliph. hydrocarbon group, an alicyclic hydrocarbon group, or an arom. hydrocarbon group), a compd. having a norbornene backbone, and a compd. radical-polymerizable with the compd. having the norbornene backbone are subjected to radical polymn. to give the title terpolymer having a number-average mol.wt. (measured by gel permeation chromatography, in terms of PS) of 5X10<3>-3X10<8>.
Patent JP-H0470999-A (JP)
Title: On-vehicle navigator
Inventor: NORO SATOSHI
IPC: G01C21/00
Filed: 1990-07-04
Abstract: PURPOSE:To recognize the running position of the other vehicle and to prevent the vehicle from going astray by overlapping and displaying the running position of the other vehicle on the display map of the self-vehicle. CONSTITUTION:To know the running position of the other vehicle, the command key of an operation part 7 is turned on, and the ID card of the objective vehicle is inputted. Then, an ID code data is transmitted from a microcomputer 2 to an ID decision circuit 13, and the state of a changeover circuit 11 is reversed, and a buffer 14 is connected to the microcomputer 2. After that, when a radio MODEM 12 receives a signal from the objective vehicle, this signal is converted to a digital data, and taken in through the ID decision circuit 13, buffer 14, and changeover circuit 11 to the microcomputer 2. The microcomputer 2 overlaps and displays the running position of the other vehicle based on this data on a CRT screen. Thus, the current position of the other vehicle can be recognized to turned to be very effective in the case of going astray.
Patent JP-H102904-A (JP)
Title: Liquid dispensing/sucking probe unit, method for confirming and detecting liquid dispensing action, method for detecting dropping of droplet after dispensing action and liquid-level detection method of liquid
Inventor: MANTANI MASAYUKI
IPC: G01N1/00
Filed: 1996-06-17
Abstract: PROBLEM TO BE SOLVED: To perform the confirmation of dispensing and the detection of a liquid level even during the dispensing process without complicating the mechanism of an inspecting device, to perform the confirmation/detection of the dispensing action, the detection of the liquid level, the confirmation/detection of sucking action and the detection of the dispensing quantity securely and to sense the deviation of the dispensing quantity and the dispensing position caused by the separation and dropping phenomenon of the droplet attached to the tip of a nozzle whose dispensing action is finished, securely. SOLUTION: A photodetector sensor having a light source 70 such as a light emitting element, an incandescent lamp and a laser and a light receiving element 71 is assembled to a head (a) or a body. Then, one-end sides of optical fibers 72 and 73 are connected to the light source 70 and the light receiving element 71, respectively. The other-end sides of the optical fibers 72 and 73 are guided to the tip part of a nozzle 1 provided at the lower-end side of the head (a). A light projecting part 74 and a light receiving part 75 provided at the edge parts of them are provided at the tip part of the nozzle 1 provided at the lower-end side of the head (a) so as to face downward.
Patent JP-S6422643-A (JP)
Title: Lifting/lowering device for vehicle
Inventor: SHIMODA YOSHITOSHI
IPC: B60P3/00
Filed: 1987-07-17
Abstract: PURPOSE:To achieve smooth lifting/lowering operation of a platform by journaling the ends of parallel link rising/lowering rods to brackets arranged while being separated/each other to a vehicle fixing section and journaling the tip of the parallel link rising/lowering rod to the folded upper end of a platform supporting rod, then rising/lowering the rods through operation of traction members stretched while crossing each other. CONSTITUTION:Base ends of parallel rising/lowering rods 4, 5 are journaled to brackets 2, 3 arranged with different height to the upper edge of a base box 1. The tips thereof are journaled to the folded upper end portion 9 of a platform supporting rod 8. Wires 18, 19 having one secured ends are wound between a reel 16 of a hydraulic cylinder 13 coupled in the box 1 and a reel 17 secured in parallel with the reel 16 such that they cross with guide reels 20, 21 and 26, 27 of the rising/lowering rods 4, 5. Consequently, the rising/ lowering rods 4, 5 can take vertical position and tilting position through operation of the hydraulic cylinder 13, while the supporting rod 8 can take a lifted containing position and a lowered working position.
Patent JP-H0466563-A (JP)
Title: Production of unsaturated carbamate esters
Inventor: TSUBONIWA SHIYOUSUKE
IPC: C07C269/04
Filed: 1990-07-03
Abstract: PURPOSE:To simply obtain the subject compound useful as a monomer for synthesizing polymer materials, etc., in a process by reacting an unsaturated amide compound with a metal base as starting raw materials and subsequently reacting the product with a halogenated formic acid ester. CONSTITUTION:An unsaturated amide compound of formula I (R is H, lower alkyl) is reacted with a metal base such as sodium hydroxide or methyllithium in an inactive solvent (e.g. dioxane or methyl isobutyl ketone) as -20 to 120 deg.C and subsequently reacted with a halogenated formic acid ester of formula II (X is halogen; R<1> is monohydric alcohol residue eliminating hydroxyl group) (e.g. chloroformic acid ethyl ester) at -20 to 100 deg.C, preferably 0 to 50 deg.C, to obtain a compound of formula III. As another method, a compound of formula IV is reacted with the metal base in an inactive solvent and subsequently with a compound of formula V to obtain the compound of formula III.
Patent JP-S57101419-A (JP)
Title: Strobe type comparator
Inventor: MATSUZAWA AKIRA
IPC: H03K5/08
Filed: 1980-12-16
Abstract: PURPOSE:To increase the conversion speed with a slight current, by adding a current source to a comparator. CONSTITUTION:Clock pulses 6A, 6B have relation of 6A>6B at first, and amplifier substantially. An input signal 1 and a comparison reference voltage 2 are compared and amplified at TRs 3A, 3B and appear at load resistors 4A, 4B. Next at 6B>6A, when TRs 7B and 7A turn on and off, a strobe circuit of positive feedback cnnection consisting of the TRs 3A, 3B is obtained. The positive feedback circuit is operated by taking output voltages VA, VB produced at the load resistors 4A, 4B as initial values, and fixed to a digital state corresponding to the potential difference VA-VB. The switching of the operation modes mentioned above is made by current switch consisting of the TR pair 7A, 7B. Further, the switching speed can be increased by flowing a minute current to the TRs 3A, 3B through the connection of a current source 9 and avoiding the TRs 3A, 3B from being completely cut off.
Patent JP-2001010864-A (JP)
Title: Highly heat conductive silicon nitride-based sintered compact
Inventor: IMAMURA TOSHIYUKI
IPC: C04B35/584
Filed: 1999-06-23
Abstract: PROBLEM TO BE SOLVED: To obtain a sintered compact excellent in mechanical strength and having a high heat conductivity without anisotropy in the direction of heat conduction by including silicon nitride as a principal component, including aluminum and oxygen in specific values or below of contents as impurities and respectively regulating the heat conductivity and four-point bending strength at normal temperatures to specified values or above. SOLUTION: This silicon nitride-based sintered compact is obtained by regulating the content of aluminum as an impurity element therein to <=0.2 wt.% and the content of oxygen as an impurity element therein to <=3.0 wt.% and further regulating the heat conductivity to >=70 W/(m.K) and the four-point bending strength to >=600 Pa. The amount of carbon in the sintered compact is preferably <=2.0 wt.% and the total amount of magnesium and a group 3a element of the periodic table contained therein is preferably 0.6-4.0 wt.% The weight ratio (MgO/RExOy) thereof is preferably 1-70. The ratio of β-type silicon nitride grains having >=5 μm minor axis diameter in the sintered compact is preferably <=10 vol.%.  When the sintered compact is used as a substrate for a semiconductor element, the thermal shock resistance and heat cycle resistance are improved to thereby provide a substrate material excellent in durability and reliability.
Patent JP-2000007040-A (JP)
Title: Heavy load resistant cushioning material
Inventor: OSAWA KIKUO
IPC: B65D81/113
Filed: 1998-06-24
Abstract: PROBLEM TO BE SOLVED: To provide a heavy load resistant cushioning material which is capable of protecting a product from an impact, and provided with the pressure-proof strength or cushioning function, and the restoration capacity even when a relatively heavy product is carried. SOLUTION: A heavy load resistant cushioning material is provided with a first member 12 in which a flat plate part 12b of approximately trapezoidal section orthogonal to the axis and a pair of side plate parts 12c are provided in a gap between an outer case and a product stored in the outer case and consists of a thick paper board where an end plate part 12a is projected outward of an end part of each side plate part 12c parallel to the flat plate part 12b, and a second member 13 comprising a bottom plate part consisting of a thick paper board in which a bead part of approximately semi-circular section orthogonal to the axis is formed along the axis, and a paper unit body U formed by joining the second member 13 with both end plate parts 12a of the first member 12 in a lapped condition is inserted.
Patent JP-S57102385-A (JP)
Title: Recorder
Inventor: AYADA NAOKI
IPC: G03G15/00
Filed: 1980-12-16
Abstract: PURPOSE: To remarkably shorten the recording time of a recorder for recording a plurality of sheets by detecting whether a plurality of recording units are in usable state or not and selecting the recording units to be used according to the detection and the set number of recording.  
     CONSTITUTION: No sheet detectors 21W23 are provided in sheet feeding cassettes of respective recording units. Jam detectors 24W26 for detecting the sheet jam are provided in the respective conveying systems 15W17. No ink detectors 27W29 are provided in the respective ink tanks. Trouble signals form these detectors are inputted to a control circuit 18' and are indicated on a trouble indicator 20. A picture data read by a COD circuit 1 is stored in a memory 4 through a digital circuit 2 and a buffer circuit 3. The data are in turn inputted to buffer circuit 6W8 usable by a memory controller 5 controlled by the circuit 18'. The data are then fed to usable recording heads 12W14 via drive circuits 9W11 controlled in ON or OFF by the circuit 18' for recording. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-S5967252-A (JP)
Title: Preparation of optically active beta-aminoisobutyric acid and its derivative
Inventor: SHIMAZAKI MASAMI
IPC: C07C229/08
Filed: 1982-10-08
Abstract: PURPOSE:To prepare the titled compound useful as a synthetic intermediate of pharmaceuticals such as antiphlogistic agent, and a synthetic raw material of sweetener, etc., in high purity and yield, by reducing an optically active azide compound. CONSTITUTION:The objective compound of formula II can be prepared by reducing the novel optically active azide compound of formula I (R is H, cation or carboxyl-protecting group) in a solvent such as methanol, dioxane, tetrahydrofuran, etc., in a hydrogen atmosphere of atmospheric pressure-several atm (4- 5kg/cm<2>) using a metallic catalyst such as platinum, palladium nickel, etc. at 0- 50 deg.C. The reduction may be carried out using an alkali metal or alkaline earth metal salt such as sodium borohydride, etc. or using 1,3-propanedithiol.
Patent JP-S6181447-A (JP)
Inventor: RITSUKII ERU TEIBAA
IPC: C08L23/00
Filed: 1985-08-14
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-H0466188-A (JP)
Title: Separation of polyvinyl alcohol
Inventor: SANTO YOSHITERU
IPC: B01D9/02
Filed: 1990-07-05
Abstract: PURPOSE:To separate polyvinyl alcohol by adding sulfuric acid to an aqueous solution containing polyvinyl alcohol and subsequently allowing a peroxy sulfate to act on the aqueous solution while heating said solution to 70 deg.C or higher. CONSTITUTION:The concn. of PVA contained in the washing water 9waste water) supplied to a receiving tank 1 from the respective washing tanks 2 of a desizing process is measured by a concn. sensor and controlled by controlling the supply amount of water from a water supply pipe 3 so as to become about 1.0 - 1.2%. A heater is arranged in the receiving tank 1 to heat the solution in the receiving tank 1 to about 80 - 90 deg.C. A peroxy sulfate (S-agent) and 50 deg.Be'=? sulfuric acid are mixed with waste water being the aforementioned PVA concn. in the ratios of about 4 and 10 with respect to 1,000 of waste water. This mixed waste water loses stickiness within a short time in a timing tank 5 and becomes insoluble to be separated from water.
Patent JP-S6237769-A (JP)
Title: Offering system for service information
Inventor: SHOGETSU TADAO
IPC: G06Q50/00
Filed: 1985-08-13
Abstract: PURPOSE:To perform good services by adding service information discriminating waitresses via a magnetic card to the information on dish names which are requested by customers with operation of menu keys and displaying the average waiting time needed for ordering through waiting for each menu. CONSTITUTION:The time point when an order key 4 is operated is counted and the order of a customer is urged in an interactive style via a display part 5. When the customer operates a desired menu key 5 for selection of dishes, this selection time point is counted and stored for each dish. Then the customer pushes a confirmation key 4b and a key-operable state is set again. When a card is put into a magnetic card reader 3, the codes discriminating waitresses are read and a time counting action is performed. Then the average waiting time needed for ordering through waiting is calculated for each menu. These times are averaged and totalized for each dish and displayed on a display part 6 as necessary or by request of the customer. Thus the numbers of tables served and the service time points are totalized for each waitress.