baber/WOPTO huggingface dataset:
Patent JP-S60216251-A (JP)
Title: Air/fuel ratio sensor
Inventor: YAMADA TETSUMASA
IPC: G01N27/406
Filed: 1984-04-11
Abstract: PURPOSE:To produce a relatively inexpensive apparatus with an excellent utility by arranging a solid electrolytic oxygen pump and a flat electric resistance varying type oxygen sensor opposite to each other through a fine clearance in which the concentration of oxygen is controlled with the oxygen pump. CONSTITUTION:A resistance varying type oxygen sensor 11 having measuring leads 9 and 10 across an electric resistance varying type oxygen concentration detection body 7 provided on one side of an insulating flat plate 8 is arranged opposite to a solid electrolytic oxygen pump 6 having platinum electrodes 4 and 5 on both sides of a planar solid electrolyte 3 through a fine clearance (d) to construct an air/fuel ratio sensor 2. A pump current control feeder 13 is provided to change the concentration of oxygen in the clearance (d) with the operation of the oxygen pump 6. This can produce a sensor inexpensive with an excellent utility and enables the detection of the air/fuel ratio other than the theoretical air/fuel ratio.
Patent JP-H02251705-A (JP)
Title: Machining-position detecting method
Inventor: AKUSAWA RYOZO
IPC: B23Q17/24
Filed: 1989-03-25
Abstract: PURPOSE:To make it possible to determine the position for machining readily and positively by setting the threshold intensity value of reflected light based on the average value of the intensities of the reflected light beams from the various parts of the surface of a member. CONSTITUTION:At first, a rotor 2 is rotated at a high speed. The output values for one rotation from a phototude for one rotation of the surface of a commutator 5 are stored in a control unit 14. A threshold voltage value as the threshold intensity value of the reflected light is set based on data shown on a graph in the unit 14 by using the expression I. In actual operation, the expression can be arbitrarily set in response to situation. For example, the denominator of the right side of the expression can be changed into an arbitrary constant. Then, the rotor 2 is stopped. Thereafter, the rotor 2 is rotated at a low speed. The fact that the output value of a phototude unit 15 has crossed the threshold voltage value (b) in the decreasing trend is detected. The fact that the decreasing rate of the output value becomes substantially zero is also detected. The fact that the output voltage has crossed the threshold voltage value in the increasing trend is also detected. Then, a position where the output value becomes the highest value, i.e. a position where the increasing rate becomes substantially zero, is detected.
Patent JP-S60216784-A (JP)
Title: Parallel operating device for motor
Inventor: NAGATAKE KAZUO
IPC: H02P5/52
Filed: 1984-04-11
Abstract: PURPOSE:To accurately synchronously operate in parallel a synchronous motor and a DC motor by detecting the variation in the frequency of a power source, and correcting a reference signal of a phase synchronizing loop of the DC motor on the basis of the detection. CONSTITUTION:When an actual power source frequency varies, the rotating speed of a synchronous motor 1 varies in response to the variation. On the other hand, a DC motor 3 is controlled by a phase synchronizing loop 5 on the basis of a reference signal S'0, and rotated. This signal S'0 is compared with a reference frequency fac at every one period when the actual power source frequency varies, and corrected in response to the difference. Accordingly, when the power source frequency varies, the rotating speed of the motor 3 varies in response to the variation. Thus, even if the power source frequency varies, the motors 1, 3 are operated accurately synchronously in parallel.
Patent JP-S54162748-A (JP)
Title: Polyester composition having improved color
Inventor: YAMAMOTO YOSHIYUKI
IPC: C08L67/00
Filed: 1978-06-15
Abstract: PURPOSE: The title composition usable for mechanical and electrical parts, having improved heat resistance and color stability, particularyly at high temperatures, without promoting the thermal decomposition of the composition, comprising a phosphite and a specific aromatic polyester.  
     CONSTITUTION: A composition comprising (A) 100 parts by wt. of an aromatic polyester having a melting point of 150W350°C, a molecular weight of 5,000W 50,000, an intrinisic viscosity of 0.4W1.5 measured by using a 0.5% solution in 0-chlorophenol at 25°C, containing a phenol derivative of formula I or II: (R' is H, 1W16C alkyl, or halogen; n is 1 or 2; m is integer 0W2; A is 1W6C alkylene, ether, carboryl, thioether, or sulfone group), and (B) 0.01W5 parts by wt., prefreably 0.05W0.5 part by wt., of at least one type of phosphite of formaula III or a IV: (R is 6W20C alkyl group). The additionn of 0.01W5 parts wt of an epoxy compound further improves the effect of the present invention. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S52155067-A (JP)
Title: Mesa type semiconductor device
Inventor: YAMAMOTO TAKESHI
IPC: H01L29/74
Filed: 1976-06-18
Abstract: PURPOSE:To prevent the decrease in dielectric strength and the increase in leakage current at element surface by providing high impurity regions of an opposite conductivity type in contact with the bevel face within the surface side regions composing PN junctions in semiconductor elements formed with bevel structure down to the position deeper than the PN junctions.
Patent JP-S58192920-A (JP)
Title: Combustion chamber structure of direct injection diesel engine
Inventor: MORIYASU KENJI
IPC: F02B23/06
Filed: 1982-05-01
Abstract: PURPOSE:To accelerate the mixing of the fuel spray and the air, and contrive the improvement of output power and combustion efficiency of the titled engine by a method wherein the side surface of a piston cavity is formed of a cylindrical surface, a corner part and two planes. CONSTITUTION:The side surface shape of a combustion chamber is composed of a cylindrical surface 12, four corner R parts 14 and four pair of two planes 15a, 15b, as following structure. Said cylindrical surface 12 is formed of the cylinder of a diameter D0 concentric with a cavity 3, said four corner R parts 14 are arranged, in same pitch, inscribed with concentric cylindrical surface 13 which is provided outside of said cylindrical surface 12, and said four pair of two planes 15a, 15b are formed respectively circumscribed with said corner R parts 14 and said cylindrical surface 12. The center of a ignition port 8a of a fuel injection nozzle 8 and said cavity is concentrically arranged. Thus, the attenuation of an intake air swirl is minimized, the mixing of the fuel spray and the air is accelerated, accordingly, the output power and the combustion efficiency can be improved.
Patent JP-S62234037-A (JP)
Title: 2,7,11-cembratriene-4,6-20-triol, production thereof and flavor and taste improver consisting of said compound for tobacco
Inventor: YAMAZAKI YOSHINARI
IPC: A24B3/12
Filed: 1986-04-01
Abstract: NEW MATERIAL:2,7,11-Cembratriene-4,6,20-triol expressed by formula I. USE:A flavor and taste improver, capable of imparting tobacco-like feeling to cut tobacco, pipe tobacco, regenerated tobacco and leaf tobacco for product tobacco and having effect on suppression of irritation and improvement in taste and thereby improving the product quality. PREPARATION:2,7,11-Cembratriene-4,6-diol expressed by formula II is reacted with a bacterium of the genus Bacillus (Bacillus sp.) to afford the aimed compound expressed by formula I.
Patent JP-S55164715-A (JP)
Title: Catalytic converter used for purifying exhaust gas
Inventor: OKA TOSHIAKI
IPC: F01N3/28
Filed: 1979-06-09
Abstract: PURPOSE:To enhance the exhaust-gas purifying efficiency of catalytic converter, by dividing the catalyst into a front unit and a rear unit, and forming a diffusion chamber between these two catalyst units. CONSTITUTION:Catalytic converter 6 comprises honeycomb type catalyst units 9, 10 arranged in front and rear two stages in casing 8, and a diffusion chamber 11 is formed between these two catalyst units 9 and 10. Exhaust gas passed through front catalyst unit 9 is diffused in diffusion chamber 11 and then introduced into rear catalyst unit 10. Therefore, gas components are made uniform since exhaust gas discharged from cells 14 of front catalyst unit 9 is mixed sufficinetly. Thus, exhaust gas can be purified effectively in rear catalyst unit 10 if activity of a part of the cells 14 is degraded, since the gas passed through such cells whose activity is mixed with the remaining gas in diffusion chamber 11.
Patent JP-H06291660-A (JP)
Title: A/d converter
Inventor: UENO MASAYUKI
IPC: H03M1/36
Filed: 1993-03-31
Abstract: PURPOSE:To improve the A/D conversion precision by reducing problems of sampling timing skew. CONSTITUTION:The A/D converter consists of a high order comparator group 21 composed of at least one sample holding circuit and comparators and a low-order comparator group 21 consisting of plural sample holding circuits and comparators. Sample switches SL21-SL2n and sample capacitors CL1-CLn constitute (n) sample holding circuits in total for the low-order comparator group 22. The low-order comparator hold voltage averaging circuit consisting of averaging switches SL31-SL3n eliminates variance in voltage due to the sampling timing skew of the sample capacitors CL1-CLn. The low-order comparator group 22 which specially influences the A/D conversion precision averages a sample hold voltage.
Patent JP-S60219169-A (JP)
Title: Travel car
Inventor: KANAMORI HISAKAZU
IPC: B62D57/02
Filed: 1984-04-13
Abstract: PURPOSE:To travel smoothly on curved travel path by arranging the component machineries of front and rear chassis transfer mechanisms while shifting each other to prevent interference upon approaching thereby achieving long stroke of chassis transfer mechanism. CONSTITUTION:Chassis transfer mechanisms 13a, 13b are provided in pair to the left and right in front of rear of chassis 10 constructing a travel robot. Each mechanism 13a, 13b is provided with travel wheels 15a-15c fixed to the star-arm 14a and travel wheels 16a-16c fixed to the star-arm 14b. Furthermore, drive motors 17a, 17b for rotating said wheels are provided. Said motors 17a, 17b are arranged while shifting vertically to prevent interface upon approach. The rear chassis transfer mechanism 14b is made movable back and fro through an advance/retract mechanism 18. Consequently, respective motor will never interfere even upon maximum movement of the rear chassis transfer mechanism 14b as shown by double dot line.
Patent JP-H03272869-A (JP)
Title: Manufacture of thermal head
Inventor: NAKANO MASAHIRO
IPC: B41J2/335
Filed: 1990-03-22
Abstract: PURPOSE:To form a common conductive material without using a metal mask by forming a heat generator layer, forming common conductive material on the layer, etching the material, then forming a lead electride material, and selectively removing the electrode material and the generator layer by photoetching to form a heat generator and the electrode. CONSTITUTION:A glass glazed layer is formed on a ceramic board 1 of alumina, a polysilicon layer 2 to become a heat generator 2' is formed, and a common aluminum layer 3 is formed thereon. A common conductive material 3' is formed by photolithography technique. An aluminum film 4 is formed, coated with photoresist, selectively photosensed with a photomask to etch the film 4, and the film 4 between the top of the generator 2' and individual electrodes 4-1 is removed. It is again coated with photoresist, and selectively photosensed with the photomask to etch the layer 2 between the electrodes 4 and 1 and between the generators 2'.
Patent JP-S57188609-A (JP)
Title: Upward and downward blowing method
Inventor: OZEKI AKIYA
IPC: C21C5/34
Filed: 1981-05-14
Abstract: PURPOSE:To produce not only low carbon steel, but also high carbon steel efficiently by accelerating slag making properties by blowing oxygen from above a steel bath by a swiveling lance, and stirring gas from below the steel bath. CONSTITUTION:A lance 2 swiveling as shown by an arrow blows oxygen 6 from above molten steel 4. At the same time, stirring gas is blown into the molten bath from tuy ere 3. In a swiveling lance method for upward blowing, when the rotational frequency of the lance 2 is regulated to >=15r.p.m., a decrease in decarbonization reation efficiency is great, but using the blowing of the stirring gas from the tuy ere 3 in combination eliminates the influence of the rotational frequency of the lance 2 upon decarbonization. For this purpose, the lance is rotated as fast as possible effectively for the production of slag and dephosphorization.
Patent JP-S62229917-A (JP)
Title: Gapped iron-core reactor
Inventor: MISHIMA AKIRA
IPC: H01F37/00
Filed: 1986-03-31
Abstract: PURPOSE:To apply tightening force created by a tightening stud to a core leguniformly and reduce vibration and noise by a method wherein an upper yoke core is divided and lap-jointed between a core leg and side legs at at least one position. CONSTITUTION:The upper yoke core 5 in a yoke core is divided between a core leg 1 and side legs 6 to form unit yoke cores 5a corresponding to the core leg 1. The divided parts 7 of the unit yoke cores 5a are coupled by lap-joint and coupled magnetically but can move relatively along the tightening direction of the core leg 1. The tightening force is applied to the core leg 1 through tightening plates 9 and the unit yoke cores 5a by tightening a tightening stud 8 piercing through the core leg 8 vertically. Even if the tightening force is not applied to the core leg 1 properly, as the upper yoke core 5 is divided into the unit yoke cores 5a, only the unit yoke cores 5a move relatively so as to facilitate applying the tightening force to the core leg 1 properly.
Patent JP-S57188581-A (JP)
Title: Novel tetracarboxylic acid anhydride and its preparation
Inventor: YAMATO MOTOTOSHI
IPC: C07D307/89
Filed: 1981-05-15
Abstract: NEW MATERIAL:1-Methyl-3,4-dicarboxy-1,2,3,4-tetrahydro-1-naphthalenesuccinic acid dianhydride of the formula.  
     USE: Useful as a raw material for epoxy, polyimide, polyester resins, etc., having a relatively low melting point with little hygroscopicity, and particularly useful as an epoxy resin curing agent having a good operating ratio.  
     PROCESS: α-Methylstyrene is reacted with maleic anhydride in an amount of 1.5W 4.0mol, preferably 1.8W3.0mol, based on one mole α-methylstyrene in the presence of a polymerization inhibitor at 30W200°C, preferably 50W150°C, to give the compound of the formula. 2,6-Ditert-butyl-4-methylphenol, etc. may be cited as a specific example of the polymerization inhibitor.  
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-H0855496-A (JP)
Title: Writable memory device and storage method of redundant address information
Inventor: ROLANDI PAOLO
IPC: G11C16/26
Filed: 1995-03-30
Abstract: PURPOSE: To eliminate the need for a reset circuit by connecting a 1st and a 2nd memory cell to a write circuit during writing and to a bistable circuit during reading by a switching circuit element. CONSTITUTION: During a test, a connection with the write circuit WRT is made by switching circuits SW1 and SW2 of electronic or complementary transistors to perform a writing process. During this operation, elements WS1 and WS2 enable only a reading process instead of a connection with a memory cell to store storage information in a flip-flop type circuit LATCH. During the writing process, one cell is written and the other cell is cleared. When the device turns on, the elements SW1 and SW2 enters a direct operation state in response to actuation to the circuit LATCH and there is no power consumption. When one memory cell is written to a logical high level in response to the said turning-on operation, the circuit LATCH enters a prescribed state.  The circuit LATCH which is made unbalanced by the cell where the information is written holds the other cell in the cleared state each time the power source is turned on.
Patent JP-S61230912-A (JP)
Title: Reaction injection molding
Inventor: NISHIKAWA KAZUO
IPC: B29C39/26
Filed: 1985-04-05
Abstract: PURPOSE:To enable smooth-surfaced mold product free from rough texture to be available and urethane liquid to be used without wasting by injecting urethane liquid into a cavity after applying a curing reaction inhibitor to the molding surface of a molding die which forms the rear part of a urethane mold product. CONSTITUTION:A curing reaction inhibitor which inhibits initial curing reaction of the urethane liquid 5 is applied in advance to the molding surface 2a of a top force 2. The urethane raw liquid mixed uniformly in the exterior of a molding die 1, i.e. the mixing chamber of a mixing head is injected into a cavity 4 immediately, thus allowing a curing reaction to occur. At that time, an air void 7 generates in the urethane liquid 5. Then the flow velocity of the urethane liquid 5 is reduced on the molding surface 3a side of a bottom force 3, allowing a high pressure block to be formed. In the meantime, the flow velocity of the urethane liquid 5 is increased relatively on the molding surface 2a side of the top force 2, allowing a negative pressure block to be formed. Consequently, the air void 7 generated in the urethane liquid 5 is drawn to the molding surface 2a of the top force by the pressure differential, moving to the molding surface 2a side of the top force 2, i.e. the rear part of the mold product following an advanced curing reaction.
Patent JP-H09243627-A (JP)
Title: Exhalation analyser
Inventor: SATO KATSUHIKO
IPC: G01N30/88
Filed: 1996-03-04
Abstract: PROBLEM TO BE SOLVED: To shorten the analysis time and to enhance the workability by starting the heating of a detector heater and subsequently starting the heating of a column heater before a detector reaches set temp. SOLUTION: A column 12 permits an exhalation sample to pass to separate a component therein and a detector 16 irradiates the separated component with light by an ionizing lamp 14 built in the detector to ionize the same to detect the component. A solenoid valve supplies carrier gas to the detector 16 and the column 12 and a column heater 12H and a detector heater 16H heat the column 12 and the detector 16 to respective set temps. The heaters 12H, 15H are controlled by a main control part 20 and, before the detector 6 reaches its set temp. by the heater 16H, the heating by the heater 12H is started. By this constitution, the rise time is shortened to a large extent and, since automation is realized by the main control part 20, the operation becomes simple and the workability is also enhanced.
Patent JP-S63237017-A (JP)
Title: Automatic focus adjustment mechanism
Inventor: KITAHARA SHIYOUGO
IPC: G02B7/28
Filed: 1987-03-26
Abstract: PURPOSE:To permit automatic correction of an out-of-focus arising from an optical strain by a temp. change by detecting the temp. changes of respective reflecting mirrors of a radiometer by a temp. sensor and moving a focus adjusting lens. CONSTITUTION:The light signal of a subject captured by the radiometer is guided through the reflecting mirror 1, the main reflecting mirror 2, the auxiliary reflecting mirror 3 and the focus adjusting lens 8 to a detector 4. The optical strain is generated when there is a temp. difference between these reflecting mirrors. The relations between the temp. difference and the out-of-focus can be empirically determined beforehand and, therefore, a circuit to correct the same is previously incorporated into an arithmetic circuit 6. The temps. of the respective reflecting mirrors constituting the optical system are detected by the temp. sensor 5 disposed near the reflecting mirrors and are inputted to the arithmetic circuit 6, by which the quantity of correction is determined. The relations between the temps. of the respective reflecting mirrors and the quantity of correction are known. A lens drive motor 7 moves the focus adjusting lens in the optical axis direction in compliance with such quantity of correction. The focus adjustment is thus executed automatically.
Patent JP-S60216579-A (JP)
Title: Manufacture of semiconductor device
Inventor: FUKUMOTO MASANORI
IPC: H01L29/41
Filed: 1984-04-12
Abstract: PURPOSE:To enable low contact-resistances to be obtained even with the microdimensions of a contact aperture by a method wherein a semiconductor substrate is provided with a small hole, and a contact is formed by filling this hole with an electrode material. CONSTITUTION:The semiconductor substrate 1 is provided with a diffused layer 2 of reverse conductivity type to that of the substrate 1, and a contact window 4 is formed by opening part of an SiO2 film 3. Next, the small hole 5 is formed by vertically etching the exposed surface of the substrate by using the film 3 as a mask. W7 containing an impurity of the same conductitity type as that of the layer 2 is grown in the small hole 5 on its side surface. This makes the hole 5 completely filled with W. Thereafter, the conductivity-determining impurity in the W7 is diffused to the substrate 1, resulting in the formation of a diffused layer 6, which is then connected to the layer 2. Finally, an Al/Si electrode 8 is formed over the window 4 and thus electrically connected to the layer 2. This process increases the ground areas of the electrode 8 and the substrate 1, and low contact-resistances can be obtained.
Patent JP-H11255737-A (JP)
Title: Synthesis of photosensitive compound, photosensitive composition and photosensitive offset printing plate
Inventor: WATANABE SHINYA
IPC: C07C303/28
Filed: 1998-03-06
Abstract: PROBLEM TO BE SOLVED: To obtain a photosensitive compound having improved preservability by carrying out sulfone esterification reaction of a compound having plural hydroxyl groups in the molecule with a specific compound in a specific mixed solvent. SOLUTION: A photosensitive compound is produced by the sulfone esterification reaction of (A) a compound having plural hydroxyl groups in the molecule (e.g. cresol/formaldehyde polycondensation product) with (B) a compound of formula I (R<1> to R<4> are each H, methyl, ethyl, n-propyl, isopropyl, methoxy, n-propoxy or the like) or formula II (R<5> to R<8> are each H, methyl, ethyl, n-propyl, isopropyl, methoxy, n-propoxy or the like) (e.g. 1,2- naphthoquinone-2-diazido-5-sulfonic acid chloride) in (C) a mixed solvent obtained by mixing (i) an organic solvent having an SP value of <=9.8 (e.g. tetrahydrofuran) with (ii) an organic solvent having an SP value of >=10.2 (e.g. dimethyl sulfoxide).
Patent JP-S60216585-A (JP)
Title: Solar cell element
Inventor: HANABUSA AKIRA
IPC: H01L31/04
Filed: 1984-04-12
Abstract: PURPOSE:To contrive the improvement in transmission factor and in photoelectric conversion efficiency by a method wherein a photo-permeable insulation substrate is made uneven in one surface on the phototransmitting side. CONSTITUTION:The unevenness 32 for preventing photo reflection is formed at least in one surface of a glass substrate 31, here in both surfaces. This substrate 31 is provided with the clear electrode 34 for liquid crystal in one surface on the photo transmitting side. Amorphous semiconductor layers are formed on the electrode 34 in order of P-layer 35, I-layer 36 and N-layer 37, finally, a back electrode 38 is formed on the layer 37, resulting in the production of the titled element. Such elements improve in transmission factor by photo re-reflection on the unevenness and gets the short-circuit current increased, then, this element of good photoelectric conversion factor can be easily realized with good reproducibility.