baber/WOPTO huggingface dataset:
Patent JP-H02275874-A (JP)
Title: Preparation of ascorbic acid derivative
Inventor: HATANAKA CHITOSHI
IPC: C07D407/04
Filed: 1990-01-11
Abstract: PURPOSE:To industrially and profitably prepare the subject compound by directly alkylating or alkenylating the 2-hydroxyl group of ascorbic acid or the ascorbic acid having protected 5,6-hydroxyl groups without protecting the 3-hydroxyl group of the ascorbic acid. CONSTITUTION:A compound of formula I [R<0> is H, alkyl, phenyl or a group of formula II (X is two H atoms, acetal residue or ketal residue)] (e.g. 5,6,-O,O- isopropylidene-L-ascorbic acid) is reacted with a compound of formula: R<1>-Y (R<1> is phenyl, alkyl or alkenyl; Y is sulfonyloxy) (e.g. octadecylbenzene sulfonate) in the presence of a compound of formula: RO-Z [R is H or alkyl; Z is alkali (earth) metal] to prepare a compound of formula III (e.g. 2-O-octadecyl-L- ascorbic acid). The method is industrially advantageous because of the reduced reaction processes. Side reactions caused by substituting the 3 position of the ascorbic acid is also reduced.
Patent JP-S61163307-A (JP)
Title: Waterproof fiber cable
Inventor: SAWANO HIROYUKI
IPC: G02B6/44
Filed: 1985-01-16
Abstract: PURPOSE:To improve the ironing characteristic by providing a plastic extrusion coating layer on optical fiber cores and arranging a jelly layer on the outside of this coating layer and packing a thick compound among the plastic layer, cores, and a tension member. CONSTITUTION:Many optical fiber cores 12 are twisted together around a tension member 11, and cores 12 are coated with a plastic layer 24 by extrusion, and a jelly layer 18 is arranged on the outside of the plastic layer 24, and a thick compound 22 is packed among cores 12, the plastic layer 24, and the tension member 11, thus constituting a waterproof optical fiber cable. Since cores 12 are coated with the plastic layer 24 by extrusion, cores 12 are pressed collectively to the member 11 when the cable is ironed out, and the arrangement of cores 12 is not broken to prevent the transmission loss because the jelly layer 18 is provided on the outside of the layer 24. Since the thick compound 22 is packed, twisting is not broken when the cable is bent. Thus, the generation of the transmission loss is suppressed.
Patent JP-H06212932-A (JP)
Title: Lubricating feeder for engine
Inventor: USHIJIMA KENJI
IPC: F01M1/16
Filed: 1993-01-14
Abstract: PURPOSE:To reduce the driving loss of an oil pump in a lube oil feeder of an engine. CONSTITUTION:While a crank system orifice 21 for varying the flow path resistance is inserted in a crank system feed path 6, a valve system orifice 22 for varying the flow path resistance is interposed in a valve system feed path 5, and the flow path resistance of the crank system orifice 21 is reduced along with the increase of the rotational frequency of an engine, while a controller 20 for increasing the flow path resistance of the valve system orifice 22 is provided.
Patent JP-S63173110-A (JP)
Title: Ic card processor
Inventor: YOSHIDA SHINYA
IPC: G06K19/07
Filed: 1987-01-12
Abstract: PURPOSE:To show the arrival of the time of a battery to be exchanged, by issuing an alarm based on the output of the battery incorporated in an IC card when it is lowered less than a prescribed voltage. CONSTITUTION:A CPU5 in an IC card processor 1, when an IC card being inserted, makes a voltage detection circuit 4 detect a voltage supplied through the contact part 2 of an IC card reader/writer. The CPU5 discriminates whether a detected voltage is lowered less than the prescribed voltage, and when it is lowered less than the prescribed voltage, it displays the alarm which represents that it is required to exchange the battery on a display unit 7. In such a way, it is possible to surely recognize the arrival of the time of the battery to be exchanged.
Patent JP-H06209904-A (JP)
Title: Endoscope
Inventor: KARASAWA HITOSHI
IPC: G02B23/26
Filed: 1993-01-14
Abstract: PURPOSE:To change the observational direction without changing the direction of the endoscope image, or to correct the inclination of the endoscope image without changing the observational direction, with a simple constitution. CONSTITUTION:An endoscope 1 has an object lens 7 in the end part 6 of the inserting part 4, and is provided with a slender inserting hole 13 in the inside of which an image pickup unit part 3 can be inserted, and also is provided with a jacket tube 2 having a detaching part 15 by which the image pickup unit part 3 can be turnably and detachably fixed to the base end part, The endoscope also has a slender inserting part 12 in which a solid image pickup device 21 that has been made up so as to be capable of being inserted into the inserting hole 13 of the jacket tube 2 for picking up the image that has been introduced by the object lens 7 of the jacket tube is provided at the end part, and is provided with an image pickup unit part 3 where the image pickup unit part body 14 in the base part is turnably fixed to the detaching part 15 of the jacket tube 2.
Patent JP-H10199010-A (JP)
Title: Optical head
Inventor: NAKAMURA TOSHIO
IPC: G11B7/135
Filed: 1997-01-16
Abstract: PROBLEM TO BE SOLVED: To prevent outside dust, etc., from intruding into a lens barrel and a semiconductor laser fitting part by a convection due to heat generated by the semiconductor laser passing through a gap of the semiconductor laser fitting part in the lens barrel and then sticking to a light emitting window part of a semiconductor laser. SOLUTION: A part for fitting the semiconductor laser 5 of a base is provided with a step part 22 for receiving a flange part 5c of the semiconductor laser 5, and a seal ring 23 is interposed between this step part 22 and the flange part 5c of the semiconductor laser 5, while a fitting metal 6 for holding the semiconductor laser 5 is directly fixed to a metal fitting part 25 of the base by screws 26, so that the semiconductor laser fitting part is hermetically sealed.
Patent JP-H10209362-A (JP)
Title: Lead frame structure
Inventor: KUNO HISASHI
IPC: H01L23/50
Filed: 1997-01-16
Abstract: PROBLEM TO BE SOLVED: To provide the high quality lead frames by a method wherein the lead frame structure easily recognizable of the specifications of the lead frame is provided to make the inspection of the leadframes efficient, also avoiding the inspection mistakes and inspection emitting, mistakes in the after processing required for the specifications. SOLUTION: Within a puerility of lead frame structure 1 flap-holding a plurality of lead frames in a metallic frame 3, at least one in the manufacturing specification or product specification is engraved on the part of the lead frame to be finally cut off vacuuming unnecessary so that the lead frame structure body in the different specifications may be easily recognized by reading out the specifications.
Patent JP-S5289887-A (JP)
Title: Belt grinding machine
Inventor: MURAKAMI NOBUAKI
IPC: B24B21/02
Filed: 1976-01-22
Abstract: PURPOSE:To prevent works under belt grinding from moving up and down.
Patent JP-S60149743-A (JP)
Title: Steel sheet for can having superior crack corrosion resistance and workability and its manufacture
Inventor: ARAI SHINICHI
IPC: C22C38/06
Filed: 1984-01-18
Abstract: PURPOSE:To obtain a steel sheet having superior crack corrosion resistance and workability by adding specified amounts of C, Si, Mn, Al, P, S, N and O to Fe and adjusting the average grain size of cementite to a specified value. CONSTITUTION:A steel having a composition consisting of, by weight, 0.03- 0.25% C, <=0.03% Si, 0.05-0.6% Mn, 0.005-0.1% Al, <=0.025% P, <=0.025% S, <=0.01% N, <=0.02% O and the balance Fe with inevitable impurities is subjected to hot finish rolling at a temp. in the austenite range. The resulting sheet is cooled to 450-620 deg.C at 1.6/(C%+0.1Mn%)+30-200 deg.C/sec cooling rate, and it is coiled. This coil is cold rolled and subjected to recrystallization annealing at <=700 deg.C annealing temp. The average grain size of cementite is adjusted to <=0.5mum.
Patent JP-H04237253-A (JP)
Title: Key telephone system
Inventor: MATSUMURA HIDEKO
IPC: H04M3/50
Filed: 1991-01-22
Abstract: PURPOSE:To relax a sense of displeasure of a caller kept long waiting. CONSTITUTION:External sound sources 12, 13 sounding 1st and 2nd delay announcement signals are provided on the telephone system and a master set 1 is provided with a timer value storage section 6 storing in advance 1st and 2nd timer values at which the 1st and 2nd delay announcement signals are automatically sent and when an informing call comes to a predetermined external line 11, a main control section 2 starts a time control section 7 to reference the timer value storage section 6 and when no reply comes from key telephone system 9-1 to 9-n within a prescribed time of the 1st timer value, the 1st delay announcement signal is sent from the external sound source 12 to the external line 11 and when no reply comes within a prescribed time of the 2nd timer value, the 2nd delay announcement signal is sent from the external sound source 13 via an external interface section 10 to the external line 11 through the control of an external sound source control section 8.
Patent JP-H07210794-A (JP)
Title: Body monitor device
Inventor: SHIOBARA MORIHITO
IPC: G08G1/04
Filed: 1994-01-24
Abstract: PURPOSE:To provide the body monitor device which accurately performs outdoor monitoring however the weather or time changes and never malfunctions even if a body other than an object to be monitored enters a monitor area. CONSTITUTION:The body monitor device which extracts a body entering the monitor area A is equipped with an area (a) provided at the periphery of the monitor area A and an area monitor part 41a which detects the body entering the area (a), and updates a basic image of the monitor area A with the body detection signal of the area monitor part 41a.
Patent JP-H03213266-A (JP)
Title: Presser jig for lap plate
Inventor: YOKOBORI GIICHI
IPC: B24B37/04
Filed: 1990-01-12
Abstract: PURPOSE:To prevent a lap plate from floating at time of removal of a lapping wheel by attaching a slide plate, fitted with a front upward taper at the underside of a tip part, onto plural pieces of lap plate pressers slidably and detachably toward the center of a lapping machine table. CONSTITUTION:When lapping for a lap plate 10 mounted on a table 1 of a lapping machine is performed, plural pieces of lap plate pressers 2 are pressed to an outer circumferential surface of the lap plate 10 after having the pressers slidden so as not to move the lap plate 10, and these lap plates 2 are locked, holding the lap plate 10 in between. In this state intact, a lapping wheel is stuck close to the lap plate 10, thus lapping takes place. After this lapping is over, when the lapping wheel is removed from the lap plate 10, the slide plate 6 is attached to the presser 2, and a front upward taper 9 at the underside of a tip part 8 presses a peripheral edge of the lap plate 10 so that any floatage of the lap plate is prevented from occurring.
Patent JP-S5390103-A (JP)
Title: Removing apparatus for scum
Inventor: NAGASAKI KATSUMI
IPC: B22D43/00
Filed: 1977-01-20
Abstract: PURPOSE: To provide an apparatus which makes it possible to find breaking of lead wire by connecting electrodes projected from a suction head with a power source, the electrodes which are grounded through high resistors and by detecting the currents flowing through the high resistors. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-H08193561-A (JP)
Title: Fuel injection valve of direct injection type diesel engine
Inventor: ISHIKAWA NAOYA
IPC: F02B3/06
Filed: 1995-01-18
Abstract: PURPOSE: To activize a mixture of spray and air as well as to reduce the extent of smoke and nitrogen oxides so sharply by accelerating a spraying turbulence yet steadier. CONSTITUTION: This fuel injection valve is provided with an injection valve body 22, a fuel passage 27 and a sack part 23 formed in this injection valve body 22, a nozzle hole 25 formed in the injection valve body 22 so as to be opened to the outside from this sack part 23, a needle 26 opening or closing the fuel passage 27 and the sack part 23, a turbulence imparting member 29 installed so as to be situated in an outlet of the nozzle hole 25, respectively.
Patent JP-S56103583-A (JP)
Title: Beam index type color television picture receiver
Inventor: HONDA TOYOTA
IPC: H04N9/24
Filed: 1980-01-23
Abstract: PURPOSE:To always obtain a correct index singal, by subtracting a video signal component to be applied to the cathode of an index tube or a modified component of the video signal component from the signal that is detected by an index signal detector. CONSTITUTION:The output of the index signal detector 16 is put into the substractor 203 after passing through the band pass filter 17. On the other hand, a part of the video signal to be applied to the cathode 5 of the optical index tube 1 is also supplied to the filter 23 through the band pass filter 22 and after having a gamma-exponent given by the power multiplier 21 and substrated from the signal supplied from the detector 16. Then an index signal of a correct phase in delivered from the subtractor 23. This index signal is shaped through the amplitude limiter/amplifier 18 to process the carrier chrominance signal by a color signal process circuit, then the resultant is added with the monochrome signal through the adder 20 to apply to the cathode 5 of the index tube 1.
Patent JP-S61167102-A (JP)
Title: Governing system changeover device
Inventor: IIJIMA TADAHIKO
IPC: F01D17/20
Filed: 1985-01-18
Abstract: PURPOSE:To minimize the load fluctuation during changeover and enhance the stability of system by regulating the opening of each steam regulating valve so as to keep the load constant in the direction in which the opening conforms to the flow rate to valve opening characteristics after the changeover, when the governing system of a steam regulating valve is changed over. CONSTITUTION:A regulating valve opening request signal from the ordinary control function of a turbine is input in throttle governing changeover function 2a through 2d and nozzle cut-out governing changeover function 3a through 3d, and the signal from each changeover function is input in valve opening regulating function 6a through 6d via low selecting circuits 7a through 7d. Hereupon, bias 4a through 4d and 5a through 5d are added to the valve opening request signal. When a governing system is changed over, each bias value is gradually changed while keeping the total steam flow rate constant in accordance with the characteristic of steam flow rate to opening. Thus, the load fluctuation at the time of changeover can be minimized.
Patent JP-H03209962-A (JP)
Title: Facsimile equipment
Inventor: ENDO KOICHI
IPC: H04N1/21
Filed: 1990-01-11
Abstract: PURPOSE:To transmit the data read from a recording medium after editing it to desired data by adding a data editing function to the facsimile equipment. CONSTITUTION:Data stored in advance in an IC card 20 is read by a reader/ writer 16 and transferred to a storage device 12, and in the same way as a printed document, a read data classification code 31, size data 32 and read data 33 can be stored in each storage area. Also, in the case the read data 33 transferred from the IC card 20 is code data 42, data editing can also be executed on the facsimile equipment concerned 10 by using a keyboard 13 and a display device 14, etc., in accordance with a desire of a user. In such a state, in order to transmit the read data 33 transferred from the IC card as mentioned hereinabove, the other party destination to which the data is to be transmitted is stored temporarily as transmitting destination data 34 in a storage area M4. In such a way, the data required for transmission are all stored in the storage areas M1 to M4, therefore, the data transmission is executed to the designated other party destination.
Patent JP-S60152287-A (JP)
Title: Drive circuit for motor
Inventor: SHINOHARA TOORU
IPC: H02P29/00
Filed: 1984-01-17
Abstract: PURPOSE:To obtain an inexpensive motor drive circuit by providing limit current detecting means for holding current flowed to a plurality of phase coils to the prescribed value or lower. CONSTITUTION:Amplifiers 13-15 sequentially become conductive state in response to drive signals 1-3 to sequentially flow currents to motor coils L1-L3. A limiter 12 limits so that the currents flowed to motor coils L1-L3 at this time become the prescribed value or lower. Thus, the limiter 12 has a low frequency and high power transistor to construct a low power transistor for amplifiers 13-15 corresponding to a plurality of phases, thereby obtaining an inexpensive motor drive circuit.
Patent JP-H07204500-A (JP)
Title: Honeycomb structure
Inventor: YAMAZAKI HITOSHI
IPC: B01J19/32
Filed: 1994-01-24
Abstract: PURPOSE:To provide a honeycomb structure reduced in fluid resistance and not deformed under its own wt. at the time of extrusion molding. CONSTITUTION:In a honeycomb structure having a large number of through- holes having a square cross section parallelly formed thereto, when the thicknesses of the vertical and horizontal walls forming the through-holes at the time of extrusion molding is respectively set to t1, t2 and the pitches of the vertical and horizontal walls are respectively set to P1, P2, P1/t1<9 and P2/t2>=9 are satisfied. By this constitution, the honeycomb structure not deformed under its own wt. at the time of extrusion molding and having a high aperture ratio is obtained.
Patent JP-S5391680-A (JP)
Title: Semiconductor device
Inventor: HORI RIYOUICHI
IPC: H01L23/522
Filed: 1977-01-24
Abstract: PURPOSE: To use th epolysilicon conductor more than two layers as the wiring conductor, by overlapping at a part and connecting in parallel. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S62164289-A (JP)
Title: Electronic equipment
Inventor: MORISATO MASAKAZU
IPC: G11C8/00
Filed: 1986-01-14
Abstract: PURPOSE:To decrease the number of decoders and wirings on a printed board by arranging memory ICs in a matrix form and selecting these memory ICs by two decoders. CONSTITUTION:The memory ICs M1-M64 are arranged in a matrix form and signals D0-D7 obtained by decoding address signals A16-A19 by a decoder 3 in each row are inputted to the input terminals arranged in the row direction of the matrix. While the signals C0-C7 obtained by decoding address signals A13-A15 by a decoder 3' in each column are inputted to the input terminals arranged in the column direction. In such constitution, the memory IC received the outputs of both decoders 3 and 3' is selected. Thus it is possible to decrease the number of decoders and the wiring on a printted board for a memory device.
Patent JP-H10209874-A (JP)
Title: A/d converter
Inventor: TSUKAMOTO KOJI
IPC: H03M3/02
Filed: 1997-01-17
Abstract: PROBLEM TO BE SOLVED: To provide the A/D converter at a high gain almost without no noise with miniaturization by adopting an integration device of differential operation and the transmission null point technology and configuring an inverter with a current mirror circuit. SOLUTION: The A/D converter is provided with a subtractor 1, an integration circuit 2, an adder 7, a comparator 5 and a D/A converter 6. The integration circuit 2 is configured to be four stages, differential operation integration devices are adopted for pre-stage integration devices 20, 21, and single end integration devices are adopted for post-stage integration devices 22, 23. Moreover, an inverter 3 and a resistor 4 are provided to the integration devices 22, 23 to attain a shift of transmission null point. Furthermore, the inverter 3 is configured by a current mirror circuit.
Patent JP-S60232748-A (JP)
Title: Suppressing device of waveform distortion
Inventor: MATSUOKA TATSUO
IPC: H04B10/00
Filed: 1984-01-18
Abstract: PURPOSE:To offset waveform distortion formed at the preceding passing by the suceeding passing and to remove inconvenience due to the accumulation of a waveform distortion by generating a reference signal having a prescribed level and inverting the phases of a synchronizing signal and a data signal in each passing of a node on the basis of the reference signal. CONSTITUTION:Data processing circuits constituting a synchronizing transmission system for transmitting/receiving a data signal on the basis of a synchronizing signal are provided with nodes A, B to transmit the data signal synchronously from the node A to the node B. A synchronizing signal generator 1 is formed in the node A and respective data processing circuits 2A, 2B process the transmission and reception of data on the basis of a synchronizing signal generated from the generator 1. An optical signal is transmitted between optical transmission modules 3A, 4B, 5B, 6B, 7A and optical reception modules 3B, 4A, 5B, 6A, 7A of respective nodes A, B and the phases of the synchronizing signal and data signal are inverted in every passing of one node by using inverters 9A, 9B. Thus, the waveform distortion formed at the preceding passing is offset at the succeeding to prevent the accumulation of waveform distortion.
Patent JP-H01181026-A (JP)
Title: Ventilation device
Inventor: ITO KAZUFUMI
IPC: F24F7/007
Filed: 1988-01-13
Abstract: PURPOSE:To ensure the health and safety of persons by providing the ventilation device with a sensor for detecting the contaminations of air within a room, a ventilation fan for ventilating the room, an alarm, and a controller for actuat ing the ventilation fan and the alarm by receiving an output from the sensor. CONSTITUTION:A controller 5 is provided with comparing means 13 and driving means 14. The comparing means 13 comprises pairs of comparators 19A-E and 20A-E which correspond to respective sensors 3A-E and supplied with analog outputs of respective sensors. Respective comparators 19 and 20 are preset with reference levels so that they are adjustable by semi-fixed type variable resistor. When contamination of indoor air increases and thereby the output of the sensors exceeds the reference level, the output becomes 'High', for exam ple, and the ventilation fan 2 operates to forcibly ventilate the room. When the contamination of room air further increases and reaches a level which is unpreferable for the health or a dangerous notice level, an alarm 4 operates to notify the residents of a danger by alarming sound.
Patent JP-S61164391-A (JP)
Title: Supervisory device
Inventor: KOIKE KEIZO
IPC: H04N7/18
Filed: 1985-01-16
Abstract: PURPOSE:To attain sure supervision by arranging a slit of a guide tube provided with the slit in the axial length direction opposite to a supervisory object and moving a side viewing fiber scope in the guide tube to direct accurately a supervisory section of the scope to the object and keep the section. CONSTITUTION:The guide tube 10 is constituted by butting and connecting sequentially unit tubes having a slit 10c over the entire length in the axial length direction, the slit 10c is arranged while being directed to a weld part T' of a tank T, and the fiber scope is loaded or removed through the guide. An image guide and a light guide are provided in a metallic flexible tube 2 constituting an outer shell of the fiber scope main body, the base end is guided in a drum 31 and an eyepiece 6 is loaded, a tip guide roll member 7 is mounted at the tip and plural intermediate guide roll members 8 are loaded toward the base end. A guide pin 7f is projected to the peripheray of the tip guide roll member 7 to hold a projecting window 5a and a supervisory window 5b to the attitude opposing to the welding part T' at all times.