baber/WOPTO huggingface dataset:
Patent JP-2001077681-A (JP)
Title: Power on reset signal preparing circuit
Inventor: KOSEKI YOSHITOMO
IPC: H03K17/22
Filed: 1999-09-02
Abstract: PROBLEM TO BE SOLVED: To provide a power on reset signal-generating circuit, capable of forming a reset pulse with a capacitor of a small size. SOLUTION: This signal-generating circuit is provided with a pulse width- generating circuit 19 for generating a pulse for resetting a main body circuit 20, on the basis of driving voltage outputted from a driving circuit 17 on the basis of the output voltage of two charging circuits 13, 16 of different charging periods. The drive circuit consist of a switch means 17 for utilizing a charging potential difference between the two charging circuits, a gate means for utilizing the charging time difference between the two charging circuits or a pair of differential transistors for utilizing the charging potential difference and the time difference between the two charging circuits. The circuit 19 is formed of two wires connected to the output of the drive circuit and the ground and running nearly in parallel.
Patent JP-S60144085-A (JP)
Title: Character broadcast receiver
Inventor: MAEZAWA YOSHIMASA
IPC: H04N7/081
Filed: 1983-12-30
Abstract: PURPOSE:To discriminate easily a channel of a desired character broadcast program by connecting a channel switching control section to a central processing section and switching sequentially and continuously a channel based on a command signal so as to retrieve a retrieval information signal in a television signal of all channels at the same time. CONSTITUTION:When the retrieval of character information of all channels is commanded to the central processing section 43, a switching control section 51 controls switchingly a tuner section 22 and a channel number of the received channel is changed to, e.g., a minimum value. Then the presence of the character broadcast at a channel is checked, and when the character broadcast is conducted, a channel number and the character information are extracted and stored in a multi-memory 40. A switching control section 50 controls switchingly the tuner section 22 and increments the channel number of the tuner section 22 by one. Whether or not a character broadcast receiver 1 is in the character multiplex mode is checked, and in case of the mode, the retrieval information of the character broadcast stored in a multi-memory 50 is outputted as a retrieval information signal and the content is displayed on a CRT32.
Patent JP-2001030681-A (JP)
Title: Portable ball-point pen with magnet
Inventor: KANEKO WAKICHI
IPC: B43K29/00
Filed: 1999-07-16
Abstract: PROBLEM TO BE SOLVED: To provide a portable ball-point pen with a magnet which can be used for multi-purpose applications, e.g. attaching the pen to the front face of a refrigerator always in a ready-to-pick up state for an average housewife to easily pick the pen up for taking a memorandum during her kitchen work, whenever she receives a telephone call. SOLUTION: This portable ball-point pen with a magnet has a magnet plate 5 embedded in its body 1 side face 5. Therefore, the pen is attached to the front face of a refrigerator installed at home, and does not fall off, even when the door of the refrigerator is opened/closed scores of times.
Patent JP-H07106763-A (JP)
Title: Thermocompression bonding of laminate of ceramic green sheet wiring board
Inventor: KYOI MASAYUKI
IPC: B28B11/02
Filed: 1993-10-05
Abstract: PURPOSE:To provide a method by which a highly accurate laminate of ceramic wiring boards can be thermocompression bonded without fluctuating the distribu tion of shrinkage factor of sinter and the distortion of multilayer interconnection boards nor being affected by the variation of material lots and manufacturing conditions. CONSTITUTION:A top force 4a and bottom force 4b are constituted by forming the outer peripheral parts of the forces 4a and 4b in projecting shapes and central parts of the forces 4a and 4b in recessed shaped and a laminate 1A of green sheets is put between the forces 4a and 4b so as to form the outer peripheral part of the laminate 1A in a projecting shape and the central part of the laminate 1A in a recessed shape. At the time of thermocompression bonding the laminate 1A, the bonding pressure is made uniform on the surface of a substrate by raising the pressure at the outer peripheral part where the pressure is low and, on the contrary, lowering the pressure at the central part.
Patent JP-S62109058-A (JP)
Title: Electrophotographic sensitive body
Inventor: OOSETO HIROKI
IPC: G03G5/06
Filed: 1985-11-07
Abstract: PURPOSE:To obtain the titled body having a high sensitivity and a less tendency for generating a fatigue due to repeated use by incorporating a specific hydrazone compd. to the titled body. CONSTITUTION:The hydrazone compd. shown by formula I is produced by effecting a condensation reaction of an aldehyde compd. shown by formula II and a hydrazine derivative or its salt shown by formula III in a solvent such as methanol, ethanol, dimethylformamide and dimethylsulfoxide, if necessary, in the presence of an acid or a basic salt. The titled body is constituted of a combination of a electrostatic charge transfer substance composed of the hydrazone compd. shown by formula I and a prescribed electric charge generating substance. The constitution of the titled body is examplified, for example, the conductive layer/the layer contg. the electric charge generating substance/the layer contg. the electrostatic charge transfer substrate, the conductive layer/the layer contg. the electric transfer substance/the layer contg. the electric charge generating layer, the conductive layer/the layer contg the electric charge generating substance and the electric charge transfer substances, the conductive layer/the layer contg. the electric charge generating substance/the layer contg. the electric charge generating substance and the electric charge transfer substance, etc.
Patent JP-S62109432-A (JP)
Title: Phase synchronizing circuit
Inventor: ITO NOBURO
IPC: H03L7/06
Filed: 1985-11-07
Abstract: PURPOSE:To increase the phase synchronization lock-in speed and to increase the phase synchronization lock-in range by reducing the jitter component in a steady state where the phase difference is small between the input and the output and at the same time increasing the time base control amount in a transient state where said phase difference is large. CONSTITUTION:The cumulative delay signals b2 are supplied continuously to a shift register 14 in case the rise of an output clock pulse has a large delay compared with the rise of the input signal sent from an input signal source 1. Then the continuous delay signal B2' is set at a high level and the 2nd nega tive control signal b3' is applied to a time base control circuit 3 in the first half period. Thus the output clock cycle is set at 16 against 20 of the reference period in a time base control section to perform the control of -4. While with the steady characteristics in the second half period, the continuous advance signal a2' and the delay signal b2' are never set at high levels because the cumulative advance signal a2 and the signal b2 are not deflected to a signal side. Thus the cycle of the output clock is set at 18 or 22 and controlled in a + or -2 range of the reference clock period 20.
Patent JP-S61127118-A (JP)
Title: Method for forming semiconductor thin film
Inventor: NOGUCHI TAKASHI
IPC: H01L21/336
Filed: 1984-11-26
Abstract: PURPOSE:To obtain a polycrystalline Si thin film having a large crystal grain diameter and high orientation by a method wherein the semiconductor thin film on a predetermined substrate is changed to be amorphous by implantation of a predetermined ion, then changed to a thin film of a predetermined film thickness, and heat-treated. CONSTITUTION:A polycrystalline Si thin film 3 having crystal grains 3a is deposited on the SiO2 film 2 on a quartz substrate 1. Then, Si<+> is improved thereby to change the polycrystalline Si 3 to an amorphous Si 4. After cleansing with a solution of H2O:H2O:NH3=7:2:1, the amorphous Si film 4 is lightly etched with a solution of H2O:Sol=15:1 thereby to be changed to a thin film of about 200Angstrom , and an SiO2 film 5 is deposited thereon by the low-pressure CVD method. Annealed in N2 at 1,000 deg.C, a polycrystalline Si film 6 can be obtained, the crystal grains 6a of which are extremely large and have a plane orientation for minimum surface energy (100). Thereafter, the SiO2 film 5 is removed. With this polycrystalline Si thin film, a thin film semiconductor device having a good characteristic can be obtained.
Patent JP-2000083343-A (JP)
Title: Motor frame and manufacture thereof
Inventor: TAKAGI MASAHIRO
IPC: H02K15/14
Filed: 1998-09-03
Abstract: PROBLEM TO BE SOLVED: To obtain a motor frame satisfactory in productivity wherein restrictions on the number of heat radiating fins and their height is few. SOLUTION: In a motor frame 1 made of thermally conductive material, a plurality of radiating fins 2 are arranged almost radially on the outer peripheral part, keeping intervals in the peripheral direction, and a stator is fitted in the inner peripheral side. The part in which the stator is fitted is constituted of a cylindrical body 3 formed by extrusion molding of a thermally conductive material. On the outer peripheral part of the cylindrical body 3, the series of a plurality of slots 5 are formed integrally at extrusion molding which are continuous in the axial direction keeping intervals in the peripheral direction, and radiating plates 4 composed of thermally conductive materials are installed by post-fixing one sides, and a plurality of heat radiating fins 2 are formed.
Patent JP-H1098377-A (JP)
Title: Pll circuit
Inventor: TATEISHI KIYOSHI
IPC: H04L7/04
Filed: 1996-09-20
Abstract: PROBLEM TO BE SOLVED: To reproduce well the information after a PLL lock by surely executing PLL locking even in a short VFO area. SOLUTION: This Pll circuit is one, where a composite signal obtained by time sequentially arranging a repetition signal consisting of a fixed duty ratio pulse string and a random signal consisting of a pulse string where the change of a duty ratio is permitted, is supplied. The circuit is provided with a VCO (64), generating an output signal having a frequency corresponding to a control signal. PFC (60A) comparing the phase frequencies of the repetition signal and the output signal and generating a phase frequency differential signal, a PC (60B) comparing the phase of the random signal with that of the output signal and generating a phase differential signal, and LPF 62A and 62B extracting the prescribed band components of the phase frequency differential signal and the phase differential signal and generating the control signal.  Thus, a PLL is formed by a phase frequency comparator, where a dynamic range is wide and an operation is executed in a single lock point at the time of reading VFO, so that a mis locking is eliminated and a sure pulling operation is attained in spite of the short VFO.
Patent JP-H0587475-A (JP)
Title: Heat pipe type cooler
Inventor: MATSUMOTO KOJI
IPC: F28D15/02
Filed: 1991-09-27
Abstract: PURPOSE:To provide a heat pipe type cooler capable of preventing an occurrence of dry-out at a heat inputting part of the heat pipe and realizing a superior characteristics. CONSTITUTION:A heat pipe type cooler is comprised of a heat pipe 1 composed of a metallic pipe having both ends closed, working liquid enclosed therein, a part of which being applied as a heat inputting part 2 provided with a heat generating member 7 and the other portion being applied as a thermal radiation part 3 and heat radiation fins 6 arranged outside the heat radiation part 3 of the heat pipe 1. A groove 4 extending in an entire axial direction is formed at an inner surface of the heat pipe 1 and the inner surface of the heat inputting part 2 of the heat pipe 1 is formed with a groove 5 extending along a circumferential direction of it.
Patent JP-S60141009-A (JP)
Title: Pulse amplifier circuit
Inventor: MIYAUCHI AKIRA
IPC: H01S5/042
Filed: 1983-12-28
Abstract: PURPOSE:To keep the output level constant by obtaining a compensating component attended with fluctuation of mark rate from the 1st amplifier element and applying it to a terminal possible for gain control of the 2nd amplifier element to cancel the level fluctuation outputted at the amplifier input of the 2nd amplifier element with capacitor coupling to the 1st amplifier element. CONSTITUTION:When a pulse train with a large mark rate is applied to a gate of a field effect transistor (TR)FETI, the potential of the source of the field effect TRFETI is increased. Thus, the current flowing to the TRI is increased and its collector potential is decreased. As a result, the current flowing to a TR2 is increased and the source potential of a field effect TRFET 2 is increased. In deciding each component constant in a gain control circuit 6 so that the source potential increment of the field effect TRFET2 is the increment (a) of the AC level applied to the gate of the field effect TRFET2, a Vgs voltage of the field effect TRFET2 is kept constant independently of the increase in the mark rate and mutual conductance gm is kept constant.
Patent JP-H09172396-A (JP)
Title: System and method for removing influence of acoustic coupling
Inventor: ZUU RI
IPC: H04B3/20
Filed: 1996-09-20
Abstract: PROBLEM TO BE SOLVED: To detect quickly the real existence of double speeches by specifying the effect of acoustic coupling to daduct representation of an input transmission signal from a local user and eliminating the effect. SOLUTION: A control circuit 242 receives detection information from transmission and reception detectors 252, 252 and decides a correct communication mode and measures proper performance of an echo canceller AEC 222 and an LEC 254. Based on information relating to the performance of the echo canceller, in order to correctly select a speech at a gain switching type and in a desired conversation mode, the controller 242 decides at which speed and how much gain is to be applied to a multiplier 250, 251, 248 or 228. Then the controller 242 decides which of any adaptive filter coefficient of the AEC 222 or the LEC 254 is required to eliminate or attenuate an undesirable echo to give a command of adjustment or fixing of the coefficient.
Patent JP-H04130286-A (JP)
Title: Transmission wave level control system
Inventor: WATANABE HIDEYO
IPC: G01S7/52
Filed: 1990-09-21
Abstract: PURPOSE:To enable transmitted sound wave under water to be controlled to a set level by monitoring a level of the transmitted sound wave under water by frequency analysis and then controlling it based on deviation obtained by comparison. CONSTITUTION:Transmission conditions are preset to a transmission signal setter 1. A signal generator 2 generates electrical signal based on the transmission conditions, a power amplifier 3 amplifies signal, a transducer 4 performs electrical to acoustic conversion, and sound wave is transmitted into water. Then, a hydrophone 5 performs its acoustic to electrical conversion and performs a high-speed Fourier transformation by a frequency analyzer 7 through a preamplifier 6, thus enabling the transmission level to be known. Further, an operator 8 adds needed compensation such as distance between transmission and reception systems of sound wave and obtains actual transmission level. Then, a feedback circuit 9 compares it with a setting transmission level from the transmission signal setter 1. Signal level of electrical signal generated by the generator 2 is controlled by deviation obtained by comparison and control is made to set the transmission level of sound wave which is transmitted from the transducer 4 into water to a set transmission level.
Patent JP-H0296679-A (JP)
Title: Transmission-reception circuit of nuclear magnetic resonance apparatus
Inventor: KAWAGUCHI HIROMI
IPC: G01R33/32
Filed: 1988-10-04
Abstract: PURPOSE:To shorten a time for repair by a method wherein abnormality of an initial-stage active element is detected from the S/N and signal level of an input signal in relation to a standard sample of a computer system, the initial-stage active element is switched over to another one and connection is made thereto. CONSTITUTION:A standard sample such as a prescribed quantity of water is put in a uniform magnetic field phi of a main magnet unit 1, an apparatus is driven on the basis of a pulse series generated by a master computer system 10, an NMR signal generated therefrom is detected by a receiving unit 41 and it is subjected to A/D conversion 26. Receiving a signal 26 thus obtained, an abnormality detecting unit 47 compared with a reference signal 10A collected by the system 10. When the signal 26A is smaller by a prescribed level than the signal 10A or the S/N of the former is lower by a prescribed level than that of the latter, a drive instruction signal is outputted from a drive unit 48. Then, the drive unit 48 drives a subordinate printed-circuit board 45 in the direction -Y to draw out a switching connector 44 and to separate an initial-stage active element 49A from a main circuit. By a drive thereof in the direction X, a jack connected with an initial-stage active element 49B is moved, and by a drive in the direction Y, the connector 44 is joined to connect the element 49B to the main circuit.
Patent JP-H11329705-A (JP)
Title: Microwave oven
Inventor: HONG SUK-WON
IPC: H05B6/66
Filed: 1998-09-03
Abstract: PROBLEM TO BE SOLVED: To prevent the contact of a power cord with a rear face panel of a main body by drawing out the power cord through a drawing out hole formed in a bottom panel of the main body, installing a clamping member over the drawing out hole, bending it at almost the right angle, then pressing from the upper side. SOLUTION: A drawing out hole for drawing out a power cord to the outside is formed in a bottom panel 112 of a main body 110. The power cord connected to a filter device 126 is drawn out to the lower side of the bottom panel 112 through a drawing out hole. A clamping member 150 is installed over the drawing out hole of the bottom panel 112. The clamping member 150 has a clamping part and a fixing part, the clamping part has a semi-circular cross section, and the inner diameter same as the diameter of the power cord. The fixing part is fixed to the bottom panel 112 of the main body 110 with bolts. The clamping part supports the power cord over the drawing out hole on the lower side, and thereby, the power cord is clamped so as not to move.
Patent JP-H0191405-A (JP)
Title: Closed magnetic circuit core for ignition coil
Inventor: YAMAURA TOSHIAKI
IPC: H01F38/12
Filed: 1987-10-02
Abstract: PURPOSE:To contrive improvement in the yield of punching of a sheet coil by a method wherein at least the part in the vicinity of the side of the second short leg part on the side face with its back facing the first drum part, forms the inclined side face which inclines in the direction approaching to the first drum part as said part moves nearer to the side of the second long leg part. CONSTITUTION:The side face 26 of the second drum part 21 which is positioned with its back facing the first drum part 11, has an inclined side face which inclines in such a manner that the part in the vicinity of the second long-leg part approaches the first drum part 11 when compared with the part located in the vicinity of the second short-leg part 23. Also, the side face 27 of the second drum part 21, facing the first drum part 11, has the inclined side face in parallel with the inclining side face 26. As a result, the two kinds of cores 10 and 20 having the tooth to be used for teeth matching can be punched out with the yield of production higher than that of a sheet coil 1001.
Patent JP-H03112193-A (JP)
Title: Manufacture of printed-circuit board
Inventor: NAKAJIMA KUNJI
IPC: H05K3/44
Filed: 1989-09-26
Abstract: PURPOSE:To improve heat resistance, heat dissipation, and insulation properties by laminating an anode oxide layer and a metal oxide layer by a specified method on a metal base made of a required material. CONSTITUTION:An anode oxide layer 2 is formed on the surface of a metal base 1 of aluminum or an aluminum alloy material by formation treatment and a metal oxide layer 3 is laminated on the surface of the layer 2 by the sol-gel method for forming also within a fine hole of the layer 2, thus achieving an insulation layer with improved heat resistance, heat conductivity and heat dissipation properties consisting of only an inorganic ceramic without any crack. Formation of a conductor layer 4 onto this layer 3 by the deposition method achieves a thin layer with improved adhesion. This method improves heat resistance, heat dissipation, and insulation properties and enables a printed-circuit board for achieving a fine wiring to be produced.
Patent JP-H0191943-A (JP)
Title: Manufacture of thin cast slab
Inventor: ROKUSHA TOSHINORI
IPC: B22D11/06
Filed: 1987-10-02
Abstract: PURPOSE:To manufacture a stable cast slab at high speed by arranging a coil near molten metal pouring hole in belt caster in the caster arranging one pair of belts at upper and lower sides rotatably shifting and applying magnetic field to right angle direction to the molten metal surface at the pouring hole. CONSTITUTION:The magnetic field is applied by the coil 9 at the right angle to the molten metal surface 8 between tundish 5 and the upper and lower pulleys 2, 3. Then, by the magnetic field generating from the coil 9, waving to the molten metal surface 8 of the pouring hole is restrained. By this method, even if the casting speed is raised, over-flow of the molten metal is eliminated and the stable cast slab is manufactured at high speed.
Patent JP-H1182316-A (JP)
Title: Variable speed control device for pump drive motor
Inventor: SATO KOICHI
IPC: F04B49/06
Filed: 1997-09-16
Abstract: PROBLEM TO BE SOLVED: To provide a variable speed control device for a pump drive motor in which the combined load characteristics of an inverter, motor, and pump in an area exceeding a commercial frequency are clarified and specified. SOLUTION: In a system in which, for example, a power of 120 Hz in frequency, for example, higher in frequency than a commercial power supplied from terminals R, S, and T is supplied, using an inverter device 7, to a motor 4 to drive a pump so as to drive the pump at high speed for higher performance, based on the delivery amount of pump Q0 , total lift H0 , and shaft power S0 under the rotational speed with a frequency f0 of the commercial power source, the delivery amount Q1 from the pump at the rotational speed with a frequency f1 of more than f0 in frequency is calculated using the expression of Q1 =f1 /f0 ×Q0 , total lift H1 is calculated using the expression of H1 =(f1 /f0 )<2> × H0 , and shaft power S1 is calculated using the expression of S1 =(f1 /f0 )<3> × S0 .  Then the outputs from the motor 4 and inverter device 7 are selected higher than the shaft power S1 , respectively.