baber/WOPTO huggingface dataset:
Patent JP-H1168537-A (JP)
Title: Mis-operation prevention circuit for h-bridge circuit
Inventor: IKEZU SHIGEKI
IPC: H03K17/687
Filed: 1997-08-11
Abstract: PROBLEM TO BE SOLVED: To prevent a through-current from occurring between a power source and a ground, at the time of switching of a transistor from off to on. SOLUTION: A P-channel MOS transistor 19 is connected between a power source side of a transistor 1 and a gate, an N-channel MOS transistor 20 is connected between a ground side connection line of a transistor 2 and the gate, a signal 24 is given as a gate signal to a buffer 8 of the gate of a transistor 19, and a signal 23 to a buffer 7 is given as a gate signal to the gate of a transistor 20. At the time of switching the transistor 2 (1) from off to on of, a charge current is supplied to capacitances 15 (16) supplementarity via the transistor 19 (20) and the fluctuation of the gate signal 9 (10) to the transistor 1 (2) is suppressed.
Patent JP-2001041018-A (JP)
Title: Crankshaft bearing mechanism of engine
Inventor: TAKAHASHI MASAAKI
IPC: F02B75/00
Filed: 1999-07-30
Abstract: PROBLEM TO BE SOLVED: To rapidly carry out return of oil inside a crank chamber while keeping an engine compact. SOLUTION: In an engine, a crankshaft 21 is arranged in a longitudinal direction inside a crank chamber 50 constituted by a cylinder block 20a and crankcase 20b. In this engine, a plurality of journal bearing parts 51, 52, 53 rotatably supporting the crankshaft 21 are provided, and the journal bearing part 51 and 52 at a most upper part and the most lower part, respectively, are integrally constituted by the cylinder block 20a and the creakcase 20b. The journal bearing part 53 at a middle part is constituted by a cylinder block side bearing member 53a formed integrally with the cylinder block 20a and a crankcase side bearing member 53b connected to the cylinder block side bearing member 53a, and an oil return passage 57 is formed between the crankcase side bearing member 53b and the crankcase 20b.
Patent JP-H0380172-A (JP)
Title: Coated carbon fiber reinforced composite material
Inventor: KAWAI CHIHIRO
IPC: C04B35/56
Filed: 1989-08-23
Abstract: PURPOSE:To improve oxidation resistance by forming a coating layer of SiC or Si3N4 having a specific compsn. on a base material formed by reinforcing the matrix of a compsn. changing continuously from the C in the central part toward the ceramics in the surface part with C fibers. CONSTITUTION:C powder and ceramics powder of TiC, etc., are mixed to prepare the respective powder mixtures in which the ceramics components are adjusted to 0, 20, 40, 60, 80, 100mol%. These powders are discretely deposited on a woven fabric of the C fibers by an electrophoresis method, etc., to form the composite consisting of the powder mixture of the matrix component and the woven fabric of the C fibers to constitute the reinforcing material. The respective composites are then laminated to form the laminate adjusted to have the compsns, continuously changing to 100-80-60-40-20-0-20-40-60-80-100(mol%). This laminate is dried and tentatively calcined and is then sintered under pressurization in gaseous N2 to obtain the base material. The coating layer which has the surface consisting of the SiC or Si3N4 and has the inclined compsn. with the ceramics on the boundary surface with the base material is formed on one surface of this base material by a CVD method, etc., by which the coated C fiber reinforced composite material is obtd.
Patent JP-S6194300-A (JP)
Title: Signal transmission circuit
Inventor: SONEDA MITSUO
IPC: G11C19/00
Filed: 1984-10-16
Abstract: PURPOSE:To decrease the number of elements of one stage and to eliminate the overlap of output waveforms to reduce the electric power consumption, by transmitting easily signals in both directions. CONSTITUTION:The input signals are supplied to source followers M21 and M51, and capacity components C31 and C61 for bootstrap are provided between the gate and the source of the source follower. The signal sent from the source follower is supplied to the following stage through the 1st transmission gates M41f and M71f as well as to the preceding stage through the 2nd transmission gates M41b and M71b respectively. The source followers and the 1st transmission gate are driven with phases 4f and 5f which are different alternately for each stage. Thus the input signals are transmitted successively to the following stage. Then the input signals are transmitted successively to the preceding stage when the source followers and the 2nd transmission gate are driven with phases 4b and 5b which are different alternately for each stage.
Patent JP-H04102699-A (JP)
Title: Tunnel for railroad
Inventor: SUGIYAMA KATSUMASA
IPC: E21D9/14
Filed: 1990-08-20
Abstract: PURPOSE:To prevent the occurrence of air-pressure fluctuation and micro- barometric waves by providing a plurality of air-communicating holes to the inner wall part of a tunnel body along the advancing direction, so that the air pressure risen in front of a railroad vehicle can be released to the side of the tunnel. CONSTITUTION:A tunnel body 2 is of double structure, and a large number of communicating holes 5 are bored in the inner wall part 4 of an upper chamber 3. When the air pressure inside the tunnel body 2 rises due to the traveling of railroad vehicles 1 inside the tunnel body 2, the air inside the tunnel body 2 flows into the upper chamber 3 through a large number of communicating holes 5, and is discharged to the outside of the tunnel, and the air pressure inside the tunnel body 2 is reduced. Thus, the occurrence of air-pressure fluctuation and micro-barometric waves inside the tunnel body 2 can be prevented, and traveling resistance can be reduced.
Patent JP-H0394976-A (JP)
Title: Method and apparatus for sweep welding
Inventor: JIYON MONTEREON
IPC: F28F9/18
Filed: 1990-08-20
Abstract: PURPOSE: To efficiently weld joint parts conforming a peripheral shape of each end parts by reciprocating a welding arc in a direction crossing to a traveling direction while traveling a welding head along lines of each end plates. CONSTITUTION: For end parts 76 of heat exchanger tubes which are inserted in through apertures 77 of a holding plate 74 and arranged in an array, a welding electrode 93 is travelled along one of lines of each end parts 76 while generating a welding arc. At the same time, by generating/changing electromagnetic flux in a welding arc region by an electromagnetic probe, the welding arc 206 is reciprocated in a direction crossing to a traveling direction. As a result, the welding arc 206, along a peripheral shape of the end part 166 of an oval shape heat exchanger, is successively scanned and welding joint parts 172 between tubular tube walls 174 of each heat exchange tubes and end parts 173 of the holding plate 74 are welded.
Patent JP-2001043774-A (JP)
Title: Contact switching device
Inventor: YAMAWAKI YOSHIYUKI
IPC: H01H1/26
Filed: 1999-07-30
Abstract: PROBLEM TO BE SOLVED: To prevent occurrence of abnormal heating or conduction failures. SOLUTION: This contact switching device comprises a base 1, including first and second inserting portions 1a, 1f, a first fixed terminal member 4 having a first fixed contact 4d at a position a first prescribed distance L1 separated away from an insert restriction portion 4a provided for restricting the insert into the first inserting portion 1a, a second fixed terminal member 6 having a second fixed contact 6d facing to the first fixed contact 4d at a position a second prescribed distance L2 which is shorter than the first prescribed distance L1 away from an insert restricting portion 6a provided for restricting the insert into the second inserting portions 1f, and a movable contact plate 8 having a movable contact 8a abutting on one of both fixed contacts 4d, 6b by being driven along one the facing direction of both fixed contacts 4d, 6d.  The base 1 is constructed so that an insert restricting portion 1h, that collides along the insert direction to the fixed contact provided at the position the second predetermined distance L2 away from the insert restricting portion, is provided adjacent to the second inserting portion 1f.
Patent JP-S60125040-A (JP)
Inventor: JIEEMUZU PEITON GUREI
IPC: H04L13/00
Filed: 1984-10-18
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-H0769723-A (JP)
Title: Piezoelectric material composition
Inventor: SAKAI TAKENOBU
IPC: H01L41/187
Filed: 1993-09-01
Abstract: PURPOSE:To obtain a material composition capable of producing a piezoelectric body having excellent piezoelectric properties and mechanical properties. CONSTITUTION:This piezoelectric material has the composition expressed by the following formula: Pb1-x-y-zSrxBayLaz(ZraTi1-a-bMb)O3 (0.09<=x<=0.13, 0.01<=y<=0.04, 0<z<=0.01; 0.540<a<=0.555, 0.005<=b<=0.03; M is Sb or Nb).
Patent JP-2000050609-A (JP)
Title: Support mechanism for linear mobile section
Inventor: KAMEI KEIJI
IPC: H02K33/18
Filed: 1998-07-31
Abstract: PROBLEM TO BE SOLVED: To avoid the fatigue fracture of first and second leaf springs and to secure the accurate linear motion of a linear mobile section by arranging the leaf springs, so that the spirally wound directions of their slits may become opposite to each other, and at the same time, providing torsion springs to the joints of the first and second shaft sections of the mobile section with the supporting sections of the leaf springs. SOLUTION: When first and second leaf springs 1 and 7 are inserted into the circular housing hole of a frame 10 and arranged in parallel with each other in the hole by coaxially fixing the springs 1 and 7, the springs 1 and 7 are positioned in such a way that the spirally wound directions of their spiral slits become opposite to each other. The first and second shaft sections 16 and 17 of a linear mobile section 13 are respectively connected to the supporting sections (inner rings 5) of the leaf springs 1 and 7. When the mobile section 13 is displaced in the axial direction by making an electric current to flow to a coil 35, excessive loads can be prevented from being applied to the springs 1 and 7, and at the same time, the accurate linear reciprocating motions of the mobile section 13 can be ensured.
Patent JP-H0498517-A (JP)
Title: Printer
Inventor: MURAKAMI KATSUNORI
IPC: B41J29/38
Filed: 1990-08-17
Abstract: PURPOSE:To attain the reception of the print data from two or more communication channels by monitoring plural communication channels one by one and starting the minitor of the next communication channel when no print data is received for a fixed time or longer. CONSTITUTION:A microprocessor 1 validates a communication means 4 and monitors a communication channel (d) to detect the presence or absence of the print data received after setting the time T1 to a counter circuit 9. If no print data is received, the circuit 9 is read and the monitor of the communication channel (d) is carried on as long as the counted value of the circuit 9 is not equal to zero. When the counted value of the circuit 9 is equal to zero, the channel (d) is invalidated and the monitor of a communication channel (e) is started. When the print data is received, the microprocessor 1 reads out the means 4 and receives the print data from a host device. Thus the microprocessor 1 stores successively the print data read out of the means 4 into a working memory 6.
Patent JP-H0499643-A (JP)
Title: Thermal ink jet recording device
Inventor: SATO KATSUHIRO
IPC: B41J2/05
Filed: 1990-08-17
Abstract: PURPOSE:To allow a device to be formed in a self-contained unit and thereby make it easy to manufacture a serial thermal ink jet device by constituting the device with a porous film with microholes, a thermal head arranged behind the porous film and an inking roller which supplies ink to the microholes of the porous film. CONSTITUTION:Ink 9 is sucked up by a pump 11 through a filter 10 and is fed to the top of an iking roller 3 incessantly. The ink 9 thus supplied drops running to the surface of the inking roller 3 through an ink flowout hole 13 provided on an area where the roller 3 comes in contact with an ink transport pipe 12. The inking roller 3 rotates by a contact pressure with a porous film 4 which rotates due to a drive power given by a drive roller 7. Ink 9 penetrates the entire surface of an ink retaining member provided on the inking roller 3 due to the rotation of the latter, and is able to retain a sufficient amount of ink for supply to a thermal head 6. At the same time, as the roller 3 comes in contact with the porous film 4, the ink is also supplied to the rear of the film 4.
Patent JP-H0382086-A (JP)
Title: Led array device
Inventor: TAKANISHI HIROYOSHI
IPC: H01L33/00
Filed: 1989-08-24
Abstract: PURPOSE:To regulate the voltage of a plurality of sets of blocks, and to substantially eliminate variation of a lighting voltage even if a voltage applied to a block is largely altered by respectively connecting the blocks to a power source in series with constant-voltage elements. CONSTITUTION:Elements are gathered at respective blocks A, B, C, arranged in one row substantially at an equal interval on a board, and LED elements A1, A2, B1, B2,... of both the blocks are connected in parallel at the respective blocks A, B. Diodes DA, DB are connected in series with one ends EA, EB of a power source, and LED elements C1, C2,... of a block C are connected directly in parallel with one end EC of the power source. The LED elements A1, B1, C1; A2, B2, C2,... of the numbers corresponding to the blocks A, B, C are connected in parallel at respective numbers, and connected to the other ends E1, E1,..., E5 of the power source in series with resistors R1, R2,..., R5 and switches S1, S2,..., S5.
Patent JP-H1162469-A (JP)
Title: Structure of earth retaining wall in shield pit, and starting and reaching method of shield machine
Inventor: TAKI EIJI
IPC: E21D5/00
Filed: 1997-08-12
Abstract: PROBLEM TO BE SOLVED: To provide an effective earth retaining wall structure and a method thereof capable of making starting and reaching of a shield machine while a pit port is being formed by the machine itself. SOLUTION: An earth retaining wall 12 is formed of reinforced concrete made continuous underground wall, and at a position where a pit port 16 is formed a steel pipe instead of a steel bar for reinforcement is burried so as to be pulled out upward. A steel pipe 18 is inserted in another steel pipe serving as a sheath pipe for guiding the upward pulling-out of the pipe 18. An insulating material is applied as coating on an outer surface of the pipe 18 in order to reduce the sticking force to the concrete. The so-constructed earth retaining wall 12 is installed in the earth, then the inside is excurvated to form a pit 11, and the steel pipe 18 is pulled out upward and removed from a pit forming position. Thereafter, a shield machine is made to advance to cut the wall 12 by itself for forming the pit port 16 while it is started and made to reach.
Patent JP-S60111081-A (JP)
Title: Vane apparatus of rotary compressor
Inventor: KOJIMA YOSHINOBU
IPC: F04C18/356
Filed: 1983-11-18
Abstract: PURPOSE:To markedly improve abrasion resistance by a large margin by forming at least a part of a vane apparatus from the titanium carbide having a matrix made of perlite casted iron, thus making the thermal expansion coefficient close to that of a cylinder wall. CONSTITUTION:Titanium carbide T having a matrix made of perlite casted iron P is fused onto the contact surface 12A with the piston 9 of a vane apparatus 12. The round titanium carbide T having a high hardness is exposed as shown in the figure, and the perlite casted iron part P of the matrix has a concaved form. When the vane apparatus 12 is applied with a pressure, the titanium carbide T contacts with the piston 9 and supports said pressure, and the perlite casted iron part P serves as oil sink and always feeds lubricating oil onto the contact surface. Therefore, abrasion resistance can be improved, and the thermal expansion coefficient close to that of a cylinder wall can be obtained.
Patent JP-H1142338-A (JP)
Title: Game ball discharging device
Inventor: KATO NOBUYUKI
IPC: A63F7/02
Filed: 1997-07-28
Abstract: PROBLEM TO BE SOLVED: To obtain a game ball discharging device surely discharging game balls one by one. SOLUTION: A rotatable rotary discharging body 16 is installed within a guiding passage 8 where the game balls can pass through, a recessed receiving part 16a and a projecting ball receiving part 16b capable of stopping the game balls are formed at the body 16 and the parts 16a and 16b are alternately changed to discharge the balls one by one through a reciprocating plunger 11.
Patent JP-H01183402-A (JP)
Title: Portable thin dc oxygen concentration apparatus
Inventor: NOOMAN AARU MATSUKUUMUZU
IPC: B64D13/00
Filed: 1988-08-31
Abstract: PURPOSE: To avoid the need for a DC-AC adapter system by arranging an oxygen concentrator within the foot rest cavity of an automobile so that the air flowing in this device is passed from the side part to the side part of the automobile.  
     CONSTITUTION: This portable low profile DC oxygen concentrator is required to hold molecular sieve materials 40 immobile. The molecular sieve materials 40 break slightly during use. Compression occurs next and eventually the length of a spring loaded bed 32 shortens. This tendency increases further as the device is portably used in a vehicle. The molecular sieve materials need be so held as to accept this shortening and to hold the bed 32 immobile in spite of the generation of the fine materials by breakage. While the bed of the fine material is housed, the bed 32 is so held as not to move. Such holding is mainly achieved by a moving piston assembly 54 and more particularly by filter paper 78. 
     COPYRIGHT: (C)1989,JPO
Patent JP-H0771374-A (JP)
Title: Internal type gear pump
Inventor: HAEDA YOSHIO
IPC: F04C2/08
Filed: 1993-09-02
Abstract: PURPOSE:To reduce oscillation and a noise of an internal type gear pump regardless of rotational speed change of a drive shaft by arranging a heterogenous material or a sound absorbing material in each cavity as well as forming a plural number of the cavities at a part corresponding to each addendum position of an external gear and an internal gear. CONSTITUTION:As an internal gear 3 engaged with an external gear 4 is rotated as a drive shaft 5 is rotated, a liquid refrigerant is sucked from a maximum capacity chamber and discharged to a minimum capacity chamber. In the meantime, at the time of compressing the liquid refrigerant, due to a difference of contact force of each tooth at the external gear 4 and the internal gear 3, the internal gear 3 is oscillated. When the number of rotation changes, oscillation and a noise increase. In this case, on both of the external gear 4 and the internal gear 3, each of cavities 4a, 3a is respectively formed. Additionally, into the inside of each of the cavities 4a, 3a, a heterogenous material or a sound absorbing material is inserted. Consequently it is possible to make an inexpensive structure with little oscillation and a small sound.
Patent JP-2000005759-A (JP)
Title: Waste water treating device
Inventor: SANEHISA JUNJI
IPC: C02F1/461
Filed: 1998-06-26
Abstract: PROBLEM TO BE SOLVED: To remove heavy metals in waste water and to neutralize the waste water at the same time by changing the voltage of the waste water treating device so that oxides are not deposited on an electrode. SOLUTION: This waste water treating device is composed of an iron electrode 1 and the voltage control part 2 consisting of a device for changing the direction of electric current by a switch, a device for converting DC to AC, a device for discontinuously applying current, etc. The iron electrode 1 is dipped in a water tank 3 contg. the waste water, the current changing with time is discharged from the electrode 1, and the heavy metals depositing on the electrode 1 are neutralized. Meanwhile, the deposition of the heavy metals on the electrode 1 is prevented by changing the voltage. The heavy metals in the waste water are easily removed in this way, and the costs of the equipment and maintenance are minimized.
Patent JP-S6373427-A (JP)
Title: Processing system for control of system file
Inventor: YANAI MASAAKI
IPC: G06F9/06
Filed: 1986-09-17
Abstract: PURPOSE:To cut system stop time down to restart processing time only by preserving independently customer data, etc., in the form of a data file and therefore omitting production of data when a program is corrected. CONSTITUTION:A system file of an external memory device 21 is divided into a 1st and 2nd program files 23 and 25 together with a data file 24. Both files 23 and 25 are allocated to a current program and a spare program. A program file loading part loads the spare program into the device 21 from a magnetic tape 20 by a command of an operator. Thus a file control part 14 replaces the file information on the current program with that on the current program in a file control block 19 and starts a restart processing control part 12 to perform the switch of the current program. At this time, the data file is taken ever the latest program as it is.
Patent JP-H0669031-A (JP)
Title: Oriented magnetic film and magnetic head using same
Inventor: NAKAMURA HITOSHI
IPC: G11B5/31
Filed: 1992-08-18
Abstract: PURPOSE:To obtain film characteristics and a film structure, which are suitable for a core material to obtain excellent record reproducing characteristics, by a method wherein in an Fe fine crystal deposition type magnetic film containing a crystal layer consisting of one kind of element compound or more, the film is formed in such a way as to have a specified element concentration and specified crystal grains and the orientation condition of the film is satisfied. CONSTITUTION:In a magnetic film which is shown by FeMC (Provided that, the M is at least one kind of element or more, which is/are chosen from among Ti, Zr, Hf, Nb, Ta, Mo, W and V, and the C is carbon.), a condition that the compositional ratio of the film is a compositional ratio of the total concentration of the M in the film to the concentration of the C in the film=2 to 20 atomic% to 5 to 20 atomic%, in which comparatively good magnetic characteristics are obtained, is used. The texture of this film basically consists of fine crystal grains of a mean crystal grain diameter of 0.05mum or shorter and a crystal layer consisting of a carbide made of the element M is contained in one part of the texture. Accordingly, the Fe is perferentially orientated in the orientation (110) and a diffraction peak intensity ratio using X-rays can be excellently reproduced by the magnetic film in the extent of I200/I211=0.3 to 1.0 in the extent of I110/I200=5 to 50 of the Fe.
Patent JP-H0882716-A (JP)
Title: Liquid crystal display device
Inventor: KOBAYASHI NAOTO
IPC: G02F1/1335
Filed: 1994-09-13
Abstract: PURPOSE: To eliminate loss in the light quantity from a light source by fixing in between the edge of a reflection sheet for the light source and a light guide body edge facing to a diffusion plate with a dark double-coated adhesive tape and fixing the edge of the reflection sheet for the light source and the light guide body edge facing to the reflection plate with a double-coated adhesive tape. CONSTITUTION: A cold cathode tube 9 disposed along the one side edge of a light-guide plate 6 is surrounded with a reflection sheet 10 for the light source. The one of two ends of the reflection sheet 10 toward a diffusion plate 8 is fixed to the light-guide body with a dark double-coated adhesive tape 8a. The other end near a reflection plate 7 is fixed to the plate 7 with a normal double- coated adhesive tape 9b. The dark double-coated adhesive tape 8a consists of a polyethylene terephthalate(PET) film as the base film which is colored into black or other light-absorbing color with a pigment or dye, and a tacky adhesive material applied on both surfaces of the base film. The base film is not limited to PET, and an adhesive can be used instead of the tacky adhesive material.