baber/WOPTO huggingface dataset:
Patent JP-S63200548-A (JP)
Title: Heat dissipation construction of electronic component base
Inventor: NAKAMURA MEIJI
IPC: H05K1/18
Filed: 1987-02-17
Abstract: PURPOSE:To eliminate a radiation fin and improve a cooling efficiency and reduce a mounting space by employing a heat dissipation structure as an insulating base which insulates the outside of an electronic component from a printed wiring on the surface. CONSTITUTION:Synthetic resin insulating tubes 3 are inserted into an aluminum molded unit composed of discs piled to have the shape of a four-storied pagoda to provide lead holes 2 piercing vertically and a synthetic resin disc 4 is bonded to the bottom surface of the aluminum molded unit to form a heat dissipation base 1 of a required shape. The synthetic resin disc 4 of the heat dissipation base 1 is attached to a printed wiring board 5. An electronic component 6 is mounted on the wiring board 5 by inserting its leads 7 into the lead holes 2 and contacting the bottom of the component 6 with the radiation base 1 tightly. If a power transistor T0-5 is employed as the component 6, a radiation fin can be eliminated and a cooling efficiency can be improved. Or, a radiation base 11 which has a cross section composed of a plurality of cross-shapes and has the lead holes 2 formed by inserting the insulating tubes 3 along the respective center axes of the cross-shapes and has synthetic resin plates 41 attached to the one end can also provide an improved cooling efficiency.
Patent JP-H03238341-A (JP)
Title: Apparatus for measuring particle in fluid
Inventor: FURUYA YOSHIYUKI
IPC: G01N15/14
Filed: 1990-02-16
Abstract: PURPOSE:To make the distribution of the intensity of incident laser light in a space close to uniform by providing a lightguide wherein a plurality of optical fibers are bundled between the laser light source and a condenser lens for condensing the laser light into a measuring cell. CONSTITUTION:The distribution of the intensity of light from a laser light source 1 in a space in Gauss distribution is inputted into and outputted from a lightguide 10 and the arrangement of optical fibers 10a between an incident port 11 and an emitting port 12 of the lightguide 10 in a space has no correlation. Therefore, the space intensity distribution of the laser light emitted from the emitting port 12 becomes the uniform distribution. When the particles pass through the laser beams, the dispersion in intensity of the scattered light does not occur, and the measuring accuracy of the particles is increased. The diameter of the lightguide 10 is set at a larger value than the diameter of the beam. The adjusting man-hours for the optical system can be reduced and even if the optical axis of the laser light is fluctuated, the space intensity distribution of the laser light is not changed, and the stable, accurate measurement can be performed.
Patent JP-S60179331-A (JP)
Title: Rear-power taking-out mechanism in traction agricultural machine
Inventor: SAGAWA NOBORU
IPC: B60K17/28
Filed: 1984-02-24
Abstract: PURPOSE:To execute deep cultivation and inverting work, cultivating work to an ordinary depth, etc. by using two PTO shafts and a PTO shaft having been installed already, by using the PTO shafts equipped with PTO clutch which is axially supported rearward in the lower part of a transmission case. CONSTITUTION:A front-power taking-out clutch 7 is installed into the front part of a PTO case 5, and a PTO clutch 8 is installed into the rear part. The revolution and stop of a front-power taking-out shaft 9 which projects forward from the case 5 and is axially supported is controlled by the clutch 7. In a transmission case 2, a driving gear 11 is speed-change-driven by a traveling speed- change mechanism and drives a drive pinion shaft 13 as the input gear for a rear-wheel diff mechanism. A PTO shaft 15 which projects rearward from the rear edge part of the case 2 and is axially supported is installed so as to be driven by the PTO clutch, and deep cultivation, inverting work, etc. can be executed by properly using two PTO shafts 10 and the PTO shaft 15 having been installed already.
Patent JP-H08227555-A (JP)
Title: Recording device, reproducing device, and recording and reproducing device
Inventor: OKAYAMA MUTSUYUKI
IPC: G11B20/10
Filed: 1995-02-22
Abstract: PURPOSE: To easily detect a synchronizing position of a transmission packet and a recording block by inserting bits having different values to a recording block for each adjacent transmission packet. CONSTITUTION: In a device recording one transmission packet or more separating it to two recording blocks or more, when a unit of a recording block synchronized with a transmission packet is defined as a unit (information signal), a unit information generation circuit 1 generates a bit having a different value in adjacent bits. A recording block formatter 2 converts a transmission packet to a recording block, while inserts a unit information signal from the unit information generation circuit 1 in a recording block. A record processing circuit 3 converts an output signal from the recording block formatter 2 to a signal suitable for recording. A recording head 4 records a signal from the circuit 3 in a recording medium 5.
Patent JP-S61194698-A (JP)
Title: Charging circuit for bit line
Inventor: SUZUKI KIMINOBU
IPC: G11C11/34
Filed: 1985-02-22
Abstract: PURPOSE:To reduce the occurrence of power source noises during bit line charging and to prevent an internal circuit from malfunctioning by providing a resistance between the gate electrode of a transistor (TR) for bit line charging and an internal signal which controls the charging. CONSTITUTION:The resistance R1 is interposed between the internal signal PHI1 and gate electrodes of TRs 1, 2... for bit line charging. A capacitor C1 is the capacity that wiring (a) for the gate electrodes has, but a capacity may be provided specially. Consequently, the internal signal PHI1 has its rising made gentle by the time constant determined by the resistance R and capacitor C1 and is inputted to the gate electrodes of the TRs 1, 2.... Then when the value of the resistance R1 is set sufficiently large, the potential of the wiring (a) for the gate electrode rises with a large time constant regardless of the rising time of the internal time PHI1. Consequently, bit lines are charged slowly. Less noises appear on a power source line during bit line charging.
Patent JP-H02248731-A (JP)
Title: Gas spring
Inventor: HANSU PEETAA BAUAA
IPC: F16F9/00
Filed: 1990-02-16
Abstract: PURPOSE: To certainly perform cushioning of a terminal end by a simple means by forming a device to cushion starting motion of a piston rod of a throttle bush and forming a throttle ring clearance between the piston rod and the throttle bush. CONSTITUTION: A device to cushion starting motion of a piston rod 4 is formed of a throttle bush 38. A throttle duct 36 is soaked in the bush 38 immediately before starting motion of the piston rod 4 starting from a casing 2 is finished. A throttle ring clearance 39 is formed between the piston rod 4 and the throttle bush 38. Consequently, it is possible to perform certain terminal end cushioning by a simple means even at the time when the piston rod starts running downward at the time when a gas spring is used.
Patent JP-S57147739-A (JP)
Title: Optical keyboard device
Inventor: KUNII HIROOMI
IPC: H01H13/00
Filed: 1981-03-10
Abstract: PURPOSE:To easily compose a large-sized keyboard, by installing a reflecting mirror on the lower part of plural keys, by detecting the direction of the reflecting light irradiated to the key depressed from two fixed points and then by discriminating the key. CONSTITUTION:A column type reflecting mirror 6 is installed on the lower end of each key. An angle detection plate 11 is rotated together with a rotary reflector 10 by a motor 8. The angle detection plate 11 sets light receiving and emitting elements 12a and 12b on the upper and lower sides of many number of small holes placed on the circumference. The reflecting light is detected by light emitting/receiving devices 7a and 7b and the direction is obtained from the position of the hole of the angle detection plate 11. Two pairs of such optical measurement systems are placed at the interval of distance A. Then, by obtaining the angles theta a and theta b formed with the line (Y axis) coupling two pairs of systems and the key emitting the reflecting light, the coordinates of the key can be calculated and the key can be identified. Consequently, the discrimination of the large-sized keybaord can be realized with easy constitution.
Patent JP-S63200796-A (JP)
Inventor: ISONO NORIKO
IPC: D06F17/04
Filed: 1987-02-17
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-H0521160-A (JP)
Title: El lighting circuit
Inventor: FUJITA YUJI
IPC: H05B44/00
Filed: 1991-02-28
Abstract: PURPOSE:To compensate a variation in brightness relative to the temperature of an EL element. CONSTITUTION:There are provided a DC-DC converter 39 for converting an input voltage Vin into a high DC voltage VD and DC-AC inverter 20 for applying an AC voltage to an EL 10. In circuits, Rp1, Rp2, Cp, for controlling the power of the DC-DC converter 30, the Rp1 uses an element having a positive temperature characteristic. The Rp2, Cp use elements having negative temperature characteristic. This reduces a variation in brightness of the EL relative to ambient temperature and improves the life of the EL at high temperatures.
Patent JP-H07245635-A (JP)
Title: Signal point mapping method and signal point detection method
Inventor: IKEDA TAMOTSU
IPC: H03M13/25
Filed: 1994-03-04
Abstract: PURPOSE:To quickly and surely detect bits of a signal point corresponding to a parallel path toward the MSB even when a phase of a carrier is rotated. CONSTITUTION:The arrangement of 16-sets of signal points is classified into subsets 0-7, in which each consists of two signal points arranged shown in figure. The subsets 0, 1 are formed to be in point symmetry so that the two signal points of the subset 0 rotated by 90' correspond to two signal points of the subset 1. Furthermore, bits toward the MSB of signal points corresponding to each subset corresponding to a parallel path are made coincident with each other. Signal points are mapped similarly in the subsets 1-3 and also in the subsets 4-7.
Patent JP-S52118203-A (JP)
Title: Rotor equipped with commutator
Inventor: HAGIWARA TOSHIAKI
IPC: H01R39/04
Filed: 1976-03-31
Abstract: PURPOSE: To make an entity of an armature coil a construction able to perform an uniform good varnishing treatment by providing through holes for varnish pouring or grooves to make up these through holes along a rotor axis direction on commutator risers. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H07244155-A (JP)
Title: Pulse millimeter-wave radar apparatus
Inventor: MURAMATSU TOSHIRO
IPC: G01S13/93
Filed: 1994-03-04
Abstract: PURPOSE:To provide a pulse millimeter-wave radar apparatus in which only one high cost millimeter-wave oscillator at a fixed frequency is used and which is operated normally even at a relative velocity of 0. CONSTITUTION:Only one millimeter-wave oscillator 10 at a fixed frequency f0 is used as a millimeter-wave oscillator, and, in addition, one low cost local oscillator 40 at an intermediate frequency band (e.g. at several to several hundred MHz) is used. Then, the output fIF of the local oscillator 40 is given as the LO signal of a first mixer 30 on the reception side, it is mixed with a reflected-wave signal, its output signal is input as the RF signal of a second mixer 31, and the output signal f0 of the millimeter-wave oscillator 10 is output as the LO signal of the second mixer 31. As a result, a frequency difference at the fIF is generated between the frequency of the RF signal and that of the LO signal of the second mixer 31 even at a relative velocity of 0, and a desired intermediate-frequency signal can be obtained as the output signal of the second mixer 31.
Patent JP-S60176433-A (JP)
Title: Rotary electric machine
Inventor: KOYANAGI MASATOSHI
IPC: H02K3/24
Filed: 1984-02-23
Abstract: PURPOSE:To obtain a cooler of a stator coil which can be directly cooled forcibly by forming a vent passage around a stator coil. CONSTITUTION:A vent passage 21 is provided around a stator coil 2 between slots of a stator core 1. A turning flow B due to the viscosity of fluid is generated in an air gap 23 between the core 1 and a rotor core 22 by the rotation of the core 22 in a direction of an arrow A, and a pressure by a centrifugal force is generated by the turning flow. This pressure is utilized to form a forcible flow as designated by an arrow C in a vent passage 21 around the coil 2, thereby effectively cooling by the air.
Patent JP-H04273684-A (JP)
Title: High definition television and receiver
Inventor: SAKURAI MASARU
IPC: H04N11/24
Filed: 1991-02-28
Abstract: PURPOSE:To sufficiently transmit and reproduce information of a horizontal band by devising the system such that transmission and reception of a high definition compo nent is implemented through other channel in addition to an encode series and a decode series for a MUSE signal and a band component definition in the MUSE signal series is compensated by the high definition component of the other channel. CONSTITUTION:A high definition TV signal from an input terminal 11 is fed to 2-dimension filters 12,13, a signal outputted from the filter 12 is given to a MUSE encoder 14, in which the signal is encoded, the result is inputted to an FM modulator 15 and sent to a transmission line via an output terminal 16. On the other hand, since the filter 13 has the same frequency characteristic as that for a remaining band resulting from eliminating a moving picture band of the MUSE signal from a high definition TV signal band, the signal to the filter 13 is processed by a high definition encoder 17 and inputted to a QPSK modulator having 4-phase and the output from the modulator is similarly sent to the transmission line via the output terminal 19. The MUSE signal subject to FM modulation is sent to an input terminal at a receiver side, a moving picture signal and a still picture signal are mixed and the result is fed to an adder 36.
Patent JP-H02215632-A (JP)
Title: Paper sheet feeding device
Inventor: NODA YOSHIYUKI
IPC: B65H9/20
Filed: 1989-02-13
Abstract: PURPOSE:To appropriately maintain feed timing of a paper sheet to a process part by constituting the device to institute the time after rotation of a paper sheet feeding roller up to detecting the paper sheet with a sensor and the rotating time of the paper sheet feeding roller based on the distance from a paper sheet feeding part to the sensor. CONSTITUTION:The remaining time required to reach a paper sheet feeding distance containing a decided resist quantity in a timing roller 3 is searched, based on the time which a paper sheet 7 fed from a paper sheet feeding part 5 reaches a sensor 4, and rotation of paper sheet feeding rollers 1, 2 are stopped when the resist time is lapsed after arrival of the paper sheet 7 to the sensor 4. Hereby, the fed paper sheet 7 always generates a decided shaped flexure on its front end part, and is carried always in appropriate condition to a copying process part 26 at rotation of the timing roller 3. By this constitution, even though paper feeding speed varies due to variation with lapse of time, the paper sheet 7 is always fed with a constant resist quantity of the timing roller 3.
Patent JP-S63203098-A (JP)
Title: Manufacture of diaphragm for speaker
Inventor: KIZAWA SEIICHI
IPC: H04R7/02
Filed: 1987-02-19
Abstract: PURPOSE:To manufacture a diaphragm for high-performance speaker by depositing a thermal spraying material on a frame plate and sintering it at a high temperature CONSTITUTION:A thermal-spraying material 2 made of boron carbide or the like is deposited by thermal spraying on of plasma the rear face of a projection frame plate 4 made of aluminum or the like. In applying high temperature sintering to the material, since the boron carbide is not decomposed at a high temperature, the plate 4 and the material 2 form a thermal chemical compound without containing air bubbles or the like and the material 2 is adhered to the plate 4. Thus, the ratio E/9 of Youngs modulus to specific gravity is high and the diaphragm for high-performance speaker with high sound velocity is manufactured.
Patent JP-S58151746-A (JP)
Title: Composite relay exchanging system
Inventor: HIRAMATSU YUKIO
IPC: H04L12/64
Filed: 1982-03-05
Abstract: PURPOSE:To eliminate a redundant process and to realize a reduction of the capacity of a buffer memory, by providing a circuit exchanging function to a  packet relay exchanging device. CONSTITUTION:A queuing packet counting device 2 is provided to a subscriber exchange 1 to count the number of packets passing the same communication bus, i.e., the packets having the same address. A relay exchange 4 contains a channel part 6 which is added newly for exchange of circuits in addition to a packet exchange part 5. The exchange 4 is connected to subscriber exchanges 1 and 8 as well as to another relay or subscriber exchange 10. The device 2 always monitor the number of packets queuing for transmission with each subscriber exchange to which the packet is going. Then a direct circuit is set at the part between the exchange 1 and a corresponding exchange in case the number of packets exceeds the prescribed value.
Patent JP-H11228000-A (JP)
Title: Centering method for photographic printing paper and optical digital printer employing method thereof
Inventor: MOTOOKA EIJI
IPC: G03B27/46
Filed: 1998-02-17
Abstract: PROBLEM TO BE SOLVED: To provide a centering technique for setting photographic printing paper to a correct position at an exposure region and an optical digital printer employing the centering technique. SOLUTION: Movable width-controlling guides 101, 102 for guiding both the sides, right and left, of photographic printing paper passing through an exposure part 40 for irradiating the photographic printing paper RP pressed and fed by feeding mechanisms 44, 46 with light based on picture image data are allowed to set at a guide position for evolving guide width wider than the width of the photographic printing paper, and a centering position for evolving guide width narrower than the width of the photographic printing paper. Centering for the photographic printing paper is carried out by moving the right and the left width-controlling guide to the centering position from the guide position with the pressing of the photographic printing paper releasing.
Patent JP-S59159566-A (JP)
Title: Semiconductor device
Inventor: ISHIZUKA YOSHIHIRO
IPC: H01L21/331
Filed: 1983-03-03
Abstract: PURPOSE:To contrive the conduction of carriers injected from the emitter also in a substrate by forming buried layers in the emitter and collector regions, respectively, so that a base width is determined both in the surface and the inside of the substrate. CONSTITUTION:An N type vapor grown layer laminated on the P type Si substrate 1 wherein a low resistant N type diffused layer 2 is formed forms an N type island 3 isolated by a P type diffused layer 4 diffused from the surface. The island 3 is the base region, a P type emitter region 5 and a P type collector region 6 are diffusion-formed, and further a low resistant N type diffused layer 7 for the base electrode is formed. Then, the buried layers 5' and 6' are buried in the emitter region 5 and the collector region 6, and, resulting in the constitution wherein the shortest distance between both of the regions, i.e., base width Wb0 is determined both in the surface and the inside of the substrate.
Patent JP-H05229451-A (JP)
Title: Hydraulic pump neutral holding device for skid steer loader
Inventor: MOTOYAMA NOBUHIKO
IPC: E02F9/20
Filed: 1992-02-21
Abstract: PURPOSE:To hold the swash plate of a hydraulic pump at the neutral position securely, as to a skid steer loader in which a static hydraulic transmission is loaded as a driving device. CONSTITUTION:In a hydraulic pump neutral holding device, a neutral spring device 18 is installed between a pump lever 11 and a board frame side to hold the pump lever 11 at the neutral position in a no-load condition, and an elastic material such as a rubber ring 24 is placed to the connection of the neutral spring device 18 and the pump lever 11. By providing the rubber ring 24, the degree of freedom of the pump lever is increased, and the pump lever can secure the neutral position by its self-restoring force, even though the neutral position given by the neutral spring device is not accurate.
Patent JP-H03237139-A (JP)
Title: Foamed sheet for food packaging container or the like
Inventor: HAYASHI HISATAKA
IPC: C08J9/14
Filed: 1990-02-15
Abstract: PURPOSE:To obtain a sheet having excellent heat resistance and moldability and suitable for packaging container for a chilled food, etc., reduced in odor by blending a specific polyphenylene ether and polystyrene with a foaming agent under high-temperature pressure and extruding the blend into a low- pressure zone. CONSTITUTION:A mixed resin of 40-90 pts.wt. polyphenylene ether suppressed to <=5ppm is toluene amount in volatile component and 10-60 pts.wt. polystyrene is blended with a foaming agent at high temperature under high pressure and the blend is extruded into a low pressure zone. A copolymer of polyphenylene ether suppressed to 5ppm in toluene amount and styrene may be used instead of the mixed resin. Toluene amount in the volatile component is preferably kept to <=3ppm. A hydrocarbon based foaming agent consisting essentially of dichlorodifluoromethane and iso-butane is preferably used as the foaming agent.
Patent JP-S57148724-A (JP)
Title: Optical switching method
Inventor: KONDOU MITSUKAZU
IPC: G02F1/05
Filed: 1981-03-11
Abstract: PURPOSE:To hold the steady switching state having no change of light quantity, by applying an AC voltage or rectangular voltage of different in phase to the periodical electrodes provided at the crossing part of optical waveguides. CONSTITUTION:The optical waveguides 11 and 12 crossing each other are provided on a ferrodielectric or semiconductor substrate, and the waveguide 12 is divided into two optical guidewaves 13 and 14. The periodical electrodes 15 and 16 are set at the crossing parts among the waveguides 11, 13 and 14 respectively. then the rectangular voltage of opposite phases is applied to the electrodes 15 and 16 from the the driving circuits 17 and 18. As a result, the voltage of the electrodes 17 and 18 are periodically set at zero to eliminate a DC field drift phenomenon. The voltage of the electrodes 17 and 18 are not set at zero at one time to decrease the fluctuation of light volume for the output beam 25. In such way, the steady switching state is held with no change of light quantity.
Patent JP-H09229026-A (JP)
Title: Fixing construction for heat sink
Inventor: KOBAYASHI MARI
IPC: H01L23/40
Filed: 1996-02-22
Abstract: PROBLEM TO BE SOLVED: To easily detachably fit a heat sink to a base member and stably hold it. SOLUTION: A metal fitting 14 is made of wire 14a having spring property, and provided with a first end part 41 and a second end part 42. The first end part 41 and the second end part 42 are formed so as to be hooked with the underside of the lock projecting parts 21, 22 of a base member 11. This metal fitting 14 is provided with side parts 45, 46 to be formed along the sides of a heat sink 13 and a presser part 50 capable of being engaged with a receiving part 23 provided on the outer circumferential part of the heat sink 13 from the upper side. An arm part 51 is provided between the side parts 45, 46. This arm part 51 is provided a hook 52 formed so as to be hooked with the underside of a lock projecting part 23 getting over it, when it is pushed from the upper side to the third lock projecting part 23 of the base member 11.