baber/WOPTO huggingface dataset:
Patent JP-S58198947-A (JP)
Title: 4-phase phase demodulator
Inventor: RIYUU TOSHIHIKO
IPC: H04L27/227
Filed: 1982-05-14
Abstract: PURPOSE:To realize a 4-phase phase demodulator easily and to allow it to have both functions of carrier regeneration and automatic gain control (AGC), by using only a normal discriminator and a full-wave rectifier in combination with a simple digital circuit. CONSTITUTION:A variable gain amplifier 13 which inputs a 1F input signal is controlled by an AGC signal to output a signal with constant amplitude to the 1st signal branching circuit 1. The signal divided into two by this circuit 1 is supplied to phase detectors 2 and 3, which perform synchronous detection by using mutually orthogonal local signals form a 90 phase shifter 6 and the 2nd signal branching circuit 5. At this time, the detection outputs Dp and DQ of the phase detectors 2 and 3 are converted into binary signals by binary discriminators 7 and 8 to obtain output data as the 1st and the 2nd binary signals. The outputs Dp and DQ are rectified on the basis of the center level of the waveforms by full-wave rectifiers 14 and 15 to be converted one-level waveforms and binary discriminators 16 and 17 perform binary discrimination based upon the single-level value as a threshold value to obtain the 1st and the 2nd error signals.
Patent JP-S566512-A (JP)
Title: Transistor differential circuit
Inventor: KOMINAMI YASUO
IPC: H03F3/45
Filed: 1979-06-29
Abstract: PURPOSE:To realize a high input inpedance, a low output impedance and a high gain each by constituting a differential circuit with the operational amplifier. CONSTITUTION:Noninverse input terminals B and C of operational amplifiers 1a and 1b are used for the equivalent base and emitter terminals each. And the differential circuit is formed in such way that the output may be extracted out of the  emitter follower via the open collector. The sufficient negative feedback is secured  inside the operational amplifier along with a high input impedance and a low output impedance ensured originally. Accordingly, a high gain and a low distortion  can be attained easily through the differential circuit. And diodes D1 and D2 are  provided to equivalent emitter terminal E to ensure an easy logarithmic variation  for the gain control characteristics.
Patent JP-S577833-A (JP)
Title: Removing apparatus for bubble in manufacture of glass fiber
Inventor: MACHIDA HARUHIKO
IPC: C03B37/023
Filed: 1980-06-18
Abstract: PURPOSE:To thoroughly remove bubbles from molten glass and to obtain a glass fiber of high quality by introducing the molten glass into a vessel provided with an uneven bottom and partition plates opposing to the recesses. CONSTITUTION:Core glass or sheath glass for a glass fiber for transmitting light or image is melted and poured into a vessel 5 at a constant rate. Bubbles 10 existing in the molten glass 9 flow from the outside of the vessel 5 to the center. At this time, since the bottom 6 of the vessel is uneven, bubbles 10 acceleratedly rise from each recess 11 to each protrusion 12, and they are released into the air at the shallowest place of the molten glass 9 between the surface of the glass 9 and the protrusion 12. Even if the bubbles pass through the place, they are interrupted by a partition plate 7 without settling again and released into the air after rising. The unevenness and the partition plate 7 are set in many steps, and the glass 9 is freed of microbubbles having about several mum size as well as bubbles. The glass 9 is then spun by dropping from a nozzle 8 attached to the bottom of the vessel 5 at a central part. When both core glass and sheath glass are melted, the positions of nozzles are adjusted to spin them.
Patent JP-H11284208-A (JP)
Title: Manufacture of transparent conductive film and photosensor element
Inventor: YAMAMOTO TAKESHI
IPC: H01L21/205
Filed: 1998-03-27
Abstract: PROBLEM TO BE SOLVED: To form a transparent conductive film at a low temp. and to enable a reinforced glass to be directly used for a substrate, by forming a crystalline transparent conductive film by the chemical vapor deposition on C based material-made C layer regions provided on a substrate. SOLUTION: C based material-made C layer regions 11 are dispersedly provided on a glass substrate 1, and a tin oxide-made transparent conductive film 2 having a rough surface is formed on the reinforcing glass 1 by atmospheric pressure thermal chemical vapor deposition method(CVD). A p-type amorphous Si(a-Si) layer 3, i-type a-Si layer 4 and n-type a-Si or microcrystalline Si layer 5 to be an optical active layer are formed on the transparent conductive film 2 by a vapor phase deposition method such as plasma CVD or photo CVD method, and an Ag back electrode 7 is provided through an ITO film 6 to be a diffusion blocking layer on the n-type a-Si layer 5 to form a thin film photosensor element.
Patent JP-H06264570-A (JP)
Title: Connection structure for roof panel
Inventor: WATABE WATARU
IPC: E04D3/40
Filed: 1993-03-16
Abstract: PURPOSE:To produce a roof having the profound feeling by forming a stage difference on each panel ranging from the ridge on the roof surface to an eaves and preventing the intrusion of rain water by joining a starting-up part and an extension part through the seam welding. CONSTITUTION:A starting-up part 3b is formed on the ridge side of a roof panel 1 which is constituted so that a roof member is installed on the upper surface, and an extension part 3a is formed on the eaves side. When roof panels positioned vertically in the eaves ridge direction of the roof surface are connected, the eaves side edge of the roof panel positioned on the ridge side is set higher than the ridge side edge of the roof panel positioned on the eaves side, and the extension part 3a of the roof panel positioned on the ridge side is superposed on the starting-up part 3b of the roof panel positioned on the eaves side, and joined through the seam welding.
Patent JP-H10281417-A (JP)
Title: Gas burner
Inventor: HIRASAWA FUSAO
IPC: F24F5/00
Filed: 1997-03-31
Abstract: PROBLEM TO BE SOLVED: To reduce a component cost and to decrease in size by integrally providing a mixing chamber together with a combustion chamber in a burner assembly, thereby simplifying constituting components and reducing number of components. SOLUTION: A front surface of a casing 9 of a gas burner 44 is opened, and this front surface opening 9a is openably closed by a cover 50. A burner assembly 16 is mounted on a rear surface of the cover 50, and when the cover 50 swings the burner casing opening 9a, the assembly 16 can be attached to or detached from the casing 9. The assembly 16 integrally has a mixing chamber 23 together with a combustion chamber 52. A combustion blower 47 is coupled at its gas outlet to a lower surface of the casing 9. And, a nozzle hole 12 is provided at an upper surface of the casing 9, and a fuel nozzle 2 communicating with a fuel supply unit is inserted into the hole 12. An end of the nozzle 2 is inserted into the assembly 16. Thus, a mounting space of the burner 44 can be reduced.
Patent JP-H02258649-A (JP)
Title: Glass composition having low welding tendency
Inventor: KIJIMA TAKESHI
IPC: C03C8/10
Filed: 1989-03-31
Abstract: PURPOSE:To obtain a glass composition having low welding tendency and effective in suppressing the development of a non-magnetic part in an alloy magnetic material by compounding SiO2, PbO, Na2O, ZnO, Al2O3, B2O3 and BaO or SrO and using specific raw material. CONSTITUTION:The objective glass composition is composed of 2.0-4.0wt.% of SiO2, 58.0-66.0wt.% of PbO, 3.0-6.0wt.% of Na2O, 8.0-11.0wt.% of ZnO. 5.0-9.0wt.% of Al2O3, 10.0-15.0wt.% of B2O3, 0-4.0wt.% of SrO and 2.0-9.0wt.% of BaO+SrO and is produced by using lead monoxide, sodium nitrate, strontium nitrate and barium nitrate as sources for PbO, Na2O, SrO and BaO. The nucleation on the interface between the low-welding glass composition and an alloy magnetic material is decreased to suppress the development of a non-magnetic part in the alloy magnetic material.
Patent JP-S61240666-A (JP)
Title: Semiconductor device
Inventor: KAZAMI AKIRA
IPC: H01L21/58
Filed: 1985-04-17
Abstract: PURPOSE:To equalize thermal expansion coefficients of the metal substrate and heat sink and to ease difference between thermal expansion coefficients of the heat sink and semiconductor device, by laminating the metal substrate and heat sink into three layers respectively. CONSTITUTION:The semiconductor device has a power semiconductor element 3 fixed through a heat sink 2 laminated into three layers, on a metal substrate 1 laminated into three layers. The metal substrate 1 and heat sink 2 consist of plates of copper 4 and invar 5 respectively. The thermal expansion coefficient of invar 5 is as small as 1.5X10<-6>/ deg.C. By selecting ratios of thicknesses of the three layers of the heat sink 2 being 1:1:1, the thermal expansion coefficient becomes 11X10<-6>/ deg.C, being smaller than that of copper 4. As a result, difference between the thermal expansion coefficient of the heat sink 2 and silicon power semiconductor element 3 can be reduced. Moreover, by the selecting ratios of thicknesses of the three layers of the metal substrate 1 being 1:1:1, difference between thermal expansion coefficients of the metal substrate 1 and heat sink 2 can be perfectly eliminated, not resulting in cracks in wax for fixing the heat sink 2 to the metal substrate 1.
Patent JP-S57198508-A (JP)
Title: Amplifying circuit for tape recorder or the like
Inventor: INOUE HIDEO
IPC: H03F1/52
Filed: 1981-05-28
Abstract: PURPOSE:To prevent magnetization of a head, by controlling that a field effect transistor (TR) is reverse-biased for the gate and source, at the on/off of power supply application, in an amplifying circuit in which a reproducing head is connected to the gate of the TR directly. CONSTITUTION:When a power supply switch 10 is closed, a charging time constant of capacitors C3 and C4 of DC power supply circuits 4 and 5 are made the same and the time constant of a capacitor C1 is made smaller than that of a C2. Thus, the voltage of the capacitor C1 rises faster than that of the C2, the gate and source of an FET2 is reverse-biased, no large gate current flows, and magnetization of a reproducing head 1 and recording of click do not take place. When the power supply switch is opened from this reproducing state, since the discharge time constant of the capacitors C2 and C4 is set smaller than that of the capacitor C1, the source voltage is relinquished and the gate and source are reverse-biased, and no magnetization is caused.
Patent JP-2000276504-A (JP)
Title: Device for converting logical connection information
Inventor: CHIBA KAZUKI
IPC: G06F17/50
Filed: 1999-03-25
Abstract: PROBLEM TO BE SOLVED: To reduce the output delay time of a clock synchronous output terminal while guaranteeing the internal state of a semiconductor integrated circuit in a clock stop state and just after clock operation without increasing the chip area of the semiconductor integrated circuit in a semiconductor integrated circuit using a CTS. SOLUTION: This device reads the logical connection information 1 of a semiconductor using a CTS, selects sequential circuit elements which are connected directly to a previously designated output terminal and are also connected to the previously designated output terminal only through a combinational circuit element among all sequential circuit elements whose clock control terminals are connected to the output node of the CTS, separates those clock control terminals from the output node of the CTS, converts them into the logical connection information 1 reconnected to a logical node which is logically equivalent to the output node of the CTS and whose propagation delay time is smaller than the CTS and outputs it.
Patent JP-H06295112-A (JP)
Title: Copying machine
Inventor: TARUKI TAKASHI
IPC: G03G15/00
Filed: 1993-04-08
Abstract: PURPOSE:To eliminate the waste of a copy and time required for copying work. CONSTITUTION:A paper supply part supplying a paper, an image forming part forming an image on the paper supplied from the paper supply part and ejecting the paper, a density detection means 51 detecting the density of the surface of the paper in the midst of carrying before the paper supplied from the paper supply part arrives at the image forming part, a judgement means 52 judging whether the image exists on the surface of the paper or not based on a density detection signal from the detection means 51 and a display means 42 displaying that the image exists on the paper when the image is judged to exist on the surface of the paper by the judgement means 52 are provided.
Patent JP-H10252004-A (JP)
Title: Ballast compactor
Inventor: YAMAMOTO SHUJI
IPC: E01B27/12
Filed: 1997-03-14
Abstract: PROBLEM TO BE SOLVED: To provide a ballast compactor enabling compacting work to be carried out efficiently. SOLUTION: A ballast compactor includes a truck 4 traveling on a rail, oscillating arms 7, 7 provided near the right and left side edges of the truck 4 in such a way as to be capable of oscillating vertically, and an expansion cylinder 8 causing oscillation of the oscillating arm 7. The ballast compactor also includes a rolling compaction roller 5 freely rotationally provided at the end of the oscillating arm 7, for compacting the area outside the rail, and a vibrator attached to or near the end of the oscillating arm 7 to vibrate the roller 5.
Patent JP-H06244502-A (JP)
Title: Surface-emission laser apparatus and its manufacture
Inventor: IBARAKI AKIRA
IPC: H01S5/183
Filed: 1993-04-08
Abstract: PURPOSE:To provide a surface-emission laser apparatus for emitting light according to the incoming of light to a light-receiving conductive element equipped on the electrode side of respective surface-emission laser elements of a secondary laser array. CONSTITUTION:An n-type multilayer film 2 and clad layer 3 are laminated on a substrate 1, an active layer 4, clad layer 5 and cap layer 6 are laminated on the clad layer 3 in the order named; and current block layers 7a, 7b are laminated on the clad layer 3 in the mode of burying these layers. Also, flattening layers 8a, 8b are laminated on the surface of the cap layer 6 and current block layer 7b. Further, a multilayer film 13 is formed on the flattening layer 8b being the upper layer of the active layer 4; a collector 9, base 10, emitter 11 and contact layer 12 are laminated in the position on the flattening layer 8b separated from the multilayer film by a suitable length and a light transistor T is provided therein; and a wavelength filter 14 is formed in the center of the light transistor.
Patent JP-H01254930-A (JP)
Title: Mechanism for lifting cap part for housing battery
Inventor: SHIMADA TAKAHISA
IPC: G03B17/00
Filed: 1988-04-05
Abstract: PURPOSE:To facilitate the removal of a battery cap part by automatically rising the battery cap part as the detention of the battery cap part is released. CONSTITUTION:A lifting member 20 is provided to the outer position of a body side wall 40 constituting a battery housing chamber and has long grooves 20b, 20b in a vertical direction guided by guide pins 21, 21 fixed to the body side wall. In addition, a bent part 20c is provided to a part of the lifting member 20 in order to energize the lifting member at all times and a compressing spring 22 to energize the lifting member 20 upward is provided around the bent part 20c. The pressing member 20 is raised by the spring 22 until the end face 20d of the member 20 presses the inner side face 30a of a lower cover 30. The front end part 20a of the member 20 is projected to the plane flash with the surface of a lower cover 30 at this time. The battery cap part rises by a prescribed height from the front face of the lower cover when the locking pawl part of the battery cap part is detached from the notched groove on the body side wall of the aperture and, therefore, the battery cap part is easily removed.
Patent JP-S579345-A (JP)
Title: Endless driving belt
Inventor: NISHIMURA MASASHI
IPC: F16G5/16
Filed: 1980-06-18
Abstract: PURPOSE: To assemble an endless belt easily and with a high reliability simply by engaging a plurality or metal blocks with a metal band from the side end thereof through slits thereof.  
     CONSTITUTION: Metal blocks 1 are formed at a specified thickness with a trapezoidal shaped front in which inclined contact surfaces 3 are formed on both side ends thereof to be in contact with a contact surface 3 of a pulley. Slits 6 are opened on one side end thereof with such a straight shape as to separately cross the inclined contact surface at equal angle respectively. On the other hand, a metal band 20 is formed in a flat belt with a thickness equal to or a little less than the width of the slits 6 of the metal block 1. The metal blocks 1 thus formed are arranged side by side thickness-wise in a plural number and joined continuously by inserting into slits 6 through the metal band 20 which is endlessly formed to complete a required endless belt. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-H01253945-A (JP)
Title: Hybrid integrated circuit device
Inventor: IKEDA YASUICHI
IPC: H01L23/36
Filed: 1988-04-04
Abstract: PURPOSE:To prevent crack from forming, by making a heat sink of clad structure consisting of binary metal and plating the side face thereof with highly conductive metal. CONSTITUTION:A heat sink 4 to mount a semiconductor element 1 thereon is made of a clad material consisting of binary metal, and a plating layer 5 is formed on at least one of the four surfaces of said heat sink 4, except the surface to mount the semiconductor element 1 thereon and that stuck on a ceramic substrate 2. Making the heat sink 4 of a clad structure having a coefficient of thermal expansion closer to that of the semiconductor element 1 and the ceramic substrate 2 prevents crack from forming in said semiconductor element 1 or ceramic substrate 2.
Patent JP-H06269792-A (JP)
Title: Discharge device for supernatant water
Inventor: TAKANO KUNIHIRO
IPC: B01D21/24
Filed: 1993-03-17
Abstract: PURPOSE:To provide a discharge device for supernatant water enabling to surely control a falling down quantity of a moving trough and also enabling to individually drive moving troughs in plural treating tanks with one drive source. CONSTITUTION:The moving trough 12 provided in the treating tank 10 storing and treating sewage and receiving the treated supernatant water is attached to an endless chain 30 which is stretched between a sprocket 24C at the rotary drive shaft 24B side provided above the water face and a sprocket 28C at the rotary driven shaft 28B side provided at the water bottom, and the rotary drive shaft 24B is rotated reversibly with a drive motor 24D. Thus, since the moving trough 12 falls down accurately by the rotational moving distance of the rotating endless chain 30, the falling down quantity of the moving trough is stabilized.
Patent JP-H11257139-A (JP)
Title: Throttle opening diagnostic device
Inventor: YONEZAWA HIROYUKI
IPC: F02D41/22
Filed: 1998-03-13
Abstract: PROBLEM TO BE SOLVED: To quickly and properly diagnose trouble of throttle opening by driving a valve operating motor after an ignition switch is turned off, and in the case where a throttle valve is not in the intermediate opening after the driving stoppage, making it judge abnormality of energizing means. SOLUTION: In a control means 64, when an ignition switch 86 is turned off to stop an engine 2, a timer circuit 66a is started, and a target opening value θA at the full-close side of a throttle valve 34 is set up. Next, a valve operating motor 38 is energized with current, rotating a throttle valve 32 to the closed side until a full-closed state, actual valve opening at that time is set to a first opening value θA. Then, whether relations among the throttle valve full-close side normally judged threshold value A, the first opening value θa and the full-close side target opening value θA are |θA-θa|<=A or not is judged, and when the judgment is YES, the motor 38 is stopped. In the case where the throttle valve 32 after the stop of this motor is mot in a specified range of intermediate opening, spring or the like are judged abnormal.
Patent JP-S60228180-A (JP)
Title: Recorder
Inventor: YOSHIDA TAKEHIRO
IPC: B41J29/48
Filed: 1984-04-26
Abstract: PURPOSE:To record received information without generating erroneous actions, by a method wherein information of a page being received is stored into a memory means when it is detected that the residual amount of a recording paper has reached a predetermined value. CONSTITUTION:When it is detected by a recording paper detecting circuit 14 that the residual amount of the recording paper has reached a predetermined value, recording is stopped, and storing of received data into an auxiliary memory 12 is started. Accordingly, all the received data can be reproduced, and it is unnecessary for the operator on the transmitting side to carry out laborious operations such as re-transmission. The detection of the recording paper can be achieved simply by detecting at least the presence or absence of the residual amount by a photo-interrupter or the like, so that erroneous actions hardly occur.
Patent JP-H01256294-A (JP)
Title: Bar code remote controller
Inventor: HASEGAWA KAZUO
IPC: H04Q9/00
Filed: 1988-04-06
Abstract: PURPOSE:To continue the reading of a bar code even if a power key is opened on the way of reading by providing a means blocking the interruption of power supply till the reading of the bar code by a read processing section is finished and a backup power supply means. CONSTITUTION:Even if the power key is opened during reading of a bar code, the power supply from a power supply 21 is not interrupted, the reading of the bar code is continued without any system change and when the reading is finished, a 2nd reset signal l generated from a read processing circuit 4 interrupts the power supply from the power supply 21. When the power from the power supply 21 is interrupted, a voltage detector 84 detects it to operate a switch 82 and the power from a backup power supply 83 is supplied to a transfer processing circuit 8'. Thus, the generation of a remote control data signal by the transfer processing circuit 8' and the transfer of the remote control data signal to a host device are implemented without any hindrance.
Patent JP-S5510062-A (JP)
Title: Wind-force pumping-up apparatus
Inventor: OOTA SATORU
IPC: F03D9/00
Filed: 1978-07-07
Abstract: PURPOSE: To allow liquid to flow upward by arranging an intake port having a valve and an exhaust port in a tank and installing a wind receiving vane, and connecting tanks in succession, and reciprocating the tank in expansion and contraction through the swing of the wind receiving vane due to wind force.  
     CONSTITUTION: An intake port 4 having a valve 5 and an exhaust port 3 are arranged in a tank 1, and a wind receiving vane 2 is installed. A necessary amount of tanks 1 are prepared and connected in communication, having the intake port 4 and the exhaust port 3 of each tank 1 in the close fitted state. Through the swing of the wind receiving vane 2 due to wind force, the outer wall of the tank 1 is  elongated and contracted, and the volume inside the tank 1 reciprocates through  expansion and contraction. When the volume inside the tank 1 contracts, the  volume of contraction which passes through a valve 5 from the intake port 4 of an  upper tank 1 which communicates to the exhaust port 3 flows in to the upper tank  1, and when the volume inside the tank 1 expands, the volume of expansion flows  into the upper tank 1 from the exhaust port 3 of a lower tank 1. 
     COPYRIGHT: (C)1980,JPO&Japio