baber/WOPTO huggingface dataset:
Patent JP-2000269590-A (JP)
Title: Optical transmitter circuit
Inventor: KOBAYASHI IPPEI
IPC: H04B10/07
Filed: 1999-03-17
Abstract: PROBLEM TO BE SOLVED: To provide an optical transmitter circuit operable at a low voltage which prevents the waveform deterioration due to the parasitic capacitance of a light emitting element drive stage common emitter in a light emitting element drive circuit and outputs a stable waveform which does not depend on the pulse current and input pattern. SOLUTION: To lessen the current dependence of the output waveform of an optical transmitter, the input amplitude in a light emitting element drive stage according to the pulse current, to thereby stabilize the output waveform and enable low-voltage operation. A pulse current control circuit 2 controls a current source 3 in the light emitting element drive stage 12 to make the optical output power constant and is also connected to a current source 4 in a light emitting element drive pre-stage 11a to control the amplitude in the pre-stage according to the pulse current, so as to reduce the pulse current dependence of the output waveform ringing.
Patent JP-S55165035-A (JP)
Title: Fm radio receiver
Inventor: HORIIKE YOSHIO
IPC: H04B1/10
Filed: 1979-06-08
Abstract: PURPOSE:To effectively reduce the production of unpleasant sound due to multi- paths at a strong electric field area, by providing the circuit detecting the frequency component other than the frequency band occupied with the stereo composite signal output from the FM detection circuit. CONSTITUTION:The BFP11 takes the frequency other than the frequency band occupied with the stereo composite signal, e.g., 100kHz as the center frequency. If multipaths are produced, distortion is developed to the output of the FM detection circuit 6 and harmonics of the stereo composite signal due to distortion are caused around 100kHz and an output is developed to the BPF11. Since the output level is selected greater than V1 (input limit value to produce the output voltage from the DC voltage generating circuit 12) but selected smaller than V2 (input limit value to produce the output voltage from the wave shape circuit 14), an output is produced from the holding circuit 13 to turn on the electronic switch 10 and to connect the capacitor C to ground, resulting in attenuating the harmonics in the audio signal.
Patent JP-S60219968-A (JP)
Title: Inverter device
Inventor: KOBAYASHI SUMIO
IPC: H02M7/5387
Filed: 1984-04-13
Abstract: PURPOSE:To reduce wiring inductance of an inverter by flowing currents of reverse directions to the second and third conductors disposed at the same side. CONSTITUTION:Since positive and negative side connecting bars 13, 14 are disposed at the same side and the directions of currents flowed to the bars 13, 14 are reverse, magnetic fluxes due to the currents are cancelled to reduce wiring inductances 4, 5. Accordingly, the induced voltages due to the inductances 4, 5 are low to prevent the applied voltage to a load 3 from decreasing at the closing time and the applied voltage of a transistor from becoming an excess voltage at the opening time.
Patent JP-H06259206-A (JP)
Title: Network printer optimizing method
Inventor: TERAO YUICHI
IPC: B41J29/38
Filed: 1993-03-09
Abstract: PURPOSE:To improve the efficiency of an entire network by automatically selecting the printer of a less load and outputting it. CONSTITUTION:When print data are received from a terminal equipment connected through the network, the printer enabling printing is searched from connected printers 31-3m. The received print data are sent to a print queue 73 corresponding to the printer 33 which enables printing. When there is no printer which enables printing, the received print data are sent to all the print queues 71-7m corresponding to the respective printers 31-3m. When any one printer enables printing, the print data are deleted from the print queues corresponding to the printers excepting for the printer which enables printing.
Patent JP-S59200339-A (JP)
Title: Display device
Inventor: KAMIBAYASHI HIROAKI
IPC: G06F3/14
Filed: 1983-04-27
Abstract: PURPOSE:To ensure the easy application of on-line screen data in case of off- line application by converting the on-line screen data into a screen format in case of the off-line application. CONSTITUTION:A font development circuit 26 is suppressed and not used in case of on-line application, and the desired character data is stored in a disk memory 11 in the form of the coded data in case of off-line application. In this case, the character data is supplied to a main memory part 2 from the memory 11 in case of off-line application. Then this character data is supplied to a code buffer 12 and stored successively in a document memory 25 via the circuit 26 and in accordance with the display screen format of the off-line application mode. Then the dot data in the memory 25 is stored again to the memory 11 in the form of the picture data. The off-line screen can be superimposed on the on-line screen by writing the off-line screen data to a full-dot memory 15.
Patent JP-S58190705-A (JP)
Title: Optical sensor
Inventor: TOKITA MASATAKA
IPC: G01D5/26
Filed: 1982-04-30
Abstract: PURPOSE:To obtain an economical sensor in which the amount of displacement of an object is sensed by an optical sensor as the amount of change of light quantity reflected by the object and then transmitted through the optical fiber. CONSTITUTION:A constant quantity of light emitted from a light source 21 constituted by a light-emitting diode is applied to an optical fiber 22 and impinges upon an optical circulator 23. The light is then transmitted to an optical fiber 24 connected to the other side of the optical circulator 23 and is radiated from the end 24a of the optical fiber 24. The light is then changed into a parallel light beam through a magnifier lens 25 and impinges upon a reflecting plate 26 which is movable up and down as illustrated. The light reflected by the reflecting plate 26 again comes into the lens 25 and is converged to be applied to the optical fiber 24. This light is transmitted to the optical circulator 23 and is deflected as indicated by an arrow E to come into a photo sensing unit 27 provided at the output end of the sensor. The photo sensing unit 27 converts the quantity of the reflected light into quantity of electricity which is displayed on a photo meter 28.
Patent JP-S63275588-A (JP)
Title: Benzopyrane(4,3-d)-thiazole derivative, manufacture and medicine
Inventor: DARIO CHIARINO
IPC: A61P37/08
Filed: 1988-03-25
Abstract: Compounds of formula <CHEM> (wherein R and R1 have the meanings reported in the specification) and their preparation are described. The compounds of formula I have anti-allergic, anti-anaphylactic and anti-arthritic activity and are useful in pharmaceutical field. Compositions for pharmaceutical use containing a compound of formula I as active ingredient are described too.
Patent JP-H03274373-A (JP)
Title: Door ornamental plate fixing device
Inventor: NAKAYAMA MIKIHIRO
IPC: F25D23/02
Filed: 1990-03-22
Abstract: PURPOSE:To facilitate a fixing of an ornamental plate and to prevent a clearance from being generated between the ornamental plate and a main body by a method wherein substantial L-shaped fittings are fixed in advance to the ornamental plate, fastened to a main body of the door with small screws and fixed there and in turn sashes of the main body are provided with ribs corresponding to a plate thickness. CONSTITUTION:Substantial L-shaped fittings 35 are fixed to an ornamental plate 3 with small screws 16 and the other side of the fitting 15 is inserted into a fitting groove 18 of a sash 11, thereafter it is fixed to a main body 14 with small screws 17. A rib 12 has a height corresponding to a plate thickness of a fitting 15. The rib 15 is abutted against the ornamental plate 3 and the main body 14, thereby an occurrence of clearance is prevented. In addition, the door ornamental plate 3 can be easily fixed to the main body 14 through fittings 15, so that its installing cost is less-expensive and the ornamental plate can be fixed positively and thus no clearance may be generated.
Patent JP-H05244616-A (JP)
Title: Projection-type display device and manufacture of its liquid crystal panel
Inventor: NAKANO MASAAKI
IPC: H04N9/30
Filed: 1992-02-26
Abstract: PURPOSE:To improve an optical image on a screen by providing respective image display parts on the same surface and setting corresponding points in the optical image to be in equal distances from the center position of light in a synthetic optical system member. CONSTITUTION:A dichronic prism 2 as the synthetic optical system member synthesizes respective red, blue and green color lights, projects synthesized light by a projection lens 3 and displays the image on the screen 4. Image display parts 21R, 21G and 21B respectively display red, green and blue and are provided on the same surface. A pixel electrode Qr corresponds to a picture element corresponding to a corner part on the screen 4 in a red image display part, a pixel electrode Qg in the green image display part 21G, and a pixel electrode Qb in the blue image display part 21B. The picture element corresponding to a part of the point in a character is a pixel electrode Pr in the display part 21R, a pixel electrode Pg in the display part 21G and a pixel electrode Pb in the display part 21R. The electrodes Qr, Qb and Qg and Pr, Pb and Pg are arranged in the equal distances from a center point O. Then, the optical image is shifted on the screen 4, and the image is formed without positional deviation, a magnifying factor difference and out-of-focus.
Patent JP-S51150039-A (JP)
Title: Economic load distribution system of power
Inventor: FUKASE KUNIHIKO
IPC: G06G7/635
Filed: 1975-06-18
Abstract: PURPOSE: Generator load distribution system in which memory capacity of computer and increase of computer calculating time are small and economical operation can be performed, while law of air contamination of NOx and etc. is held. 
     COPYRIGHT: (C)1976,JPO&Japio
Patent JP-H06284515-A (JP)
Title: Access controller of linear motor for carrying use
Inventor: TANAKA HIROMI
IPC: H02P25/06
Filed: 1993-03-31
Abstract: PURPOSE:To detach a speed control system in front of a target position, and to accelerate an access in the access controller of a linear motor accessing the target position while applying speed control. CONSTITUTION:A first changeover means 11 is operated by the control signal of a position sensing means 10 detecting a section in front of a target position and a speed control loop is separated while a second changeover means 13 is operated, a phase compensation circuit 12 is inserted into a system, and added, and leading-in control is stabilized and the speed of the leading-in control is increased by a position control system. Accordingly, the speed control loop is detached before a target-position fixed value, thus eliminating speed damping, then accelerating the response of a travel. Consequently, an access time up to the target position is shortened.
Patent JP-H07276550-A (JP)
Title: Polyolefin composite resin film containing cavity which is superior in surface gloss
Inventor: TAGA ATSUSHI
IPC: C08L23/02
Filed: 1994-04-12
Abstract: PURPOSE:To obtain a high-quality composite resin film which is light in weight, superior in cushioning properties, solvent resistance, blocking resistance and surface gloss and possesses an excellent aptitude as heat sensitive transfer and image receiving paper or printing paper. CONSTITUTION:A sheet comprised of a composition containing 1.1-40 pts.wt. organic crosslinking polymer particles whose mean particle diameter is 0.1-7mum on the basis of 100 pts.wt. polyolefin resin is taken as a base layer (A), a gloss modified layer (B) comprised of particles containing a resin composition containing 0.05-1 pts.wt. inorganic or organic particles whose mean particle diameter is 0.1-7mum on the basis of 100 pts.wt. polyolefin resin is laminated to one side or both sides of the base layer (A) and stretched.
Patent JP-S57509-A (JP)
Title: Digital angle detector
Inventor: NAKAOKI TOORU
IPC: G01D5/244
Filed: 1980-05-31
Abstract: PURPOSE:To mount easily on an angle measuring plane or on the cubic surface to digitize an angle by disposing a rotatable body to a base freely rotatively and by digitizing an extent of a rotation of the rotatable body to detect an angle. CONSTITUTION:A rotatable body 8 is supported freely rotatably around an axis as a center, to a base 2 capable of mounting on the measuring surface. An index 26 has an index indicating a center of a rotation of the rotatable body 8 and reflects the measured surface just under the index. An extent of a rotation of the rotatable body 8 is digitized by an encoder plate 14, a signal from the encoder plate 14 is detected electrically by a reader to be displayed on an displaying part 46.
Patent JP-S63239532-A (JP)
Title: Central arithmetic processor
Inventor: KINAMI JIYUNICHI
IPC: G06F9/38
Filed: 1987-03-27
Abstract: PURPOSE:To process an instruction at high speed by adding an instruction-only bus and an instruction bus interface to transmit an instruction code exclusively in a central arithmetic processor having an instruction prefetching function. CONSTITUTION:Besides an address data bus interface unit 26 provided to an address data bus ADB, an instruction bus interface unit 25 to an instruction-only bus IB to transmit an instruction code exclusively is provided. By such a reason, regardless of the fact whether or not the address data bus ADB is used, an execution unit 21 can execute the instruction prefetching. Thus, since the prefetching of the instruction is independent from the transfer of the data, the instruction can be processed at high speed.
Patent JP-S52156178-A (JP)
Title: Gas separation apparatus
Inventor: TANIDA KAZUO
IPC: B01D53/22
Filed: 1976-06-22
Abstract: PURPOSE: To enable to continuously discharge the product gas, having a fixed concentration, by connecting the sub-separation cascade for layer by layer finishing to the main separation cascade and regulating the flowing amount of sub-separation cascade, corresponding to the concentration of sending out product gas. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S61232031-A (JP)
Title: Forging formation method for thread of screw shaft
Inventor: NAKAZATO EIICHI
IPC: B21K1/56
Filed: 1985-04-09
Abstract: PURPOSE:To increase sharply the efficiency in screwing and to increase the strength as well by forming with forging a round bar by giving a rotary feeding between a pair of tapping dies providing on the forming surface the shape for forming a thread groove with forging. CONSTITUTION:The upper tapping die 1 provides the projection piece 1b which can form the thread groove having half the necessary pitch on the inner face 1a of the semicircular column which is equivalent to the radius of the aiming thread and the height of the projection piece 1b is made higher with the advancement toward the rear end. The inclination is preferrably taken as the steep inclination within the range of 0 deg.-10 deg. rather than the inclination of the necessary thread. The lower tapping die 2 is provided by advancing the projection piece 2b 180 deg. more than the projection piece 1b. The formation is performed by setting the round bar on the rotary device movable before and behind with the use of said tap. The screw having excellent quality can be produced extremely efficiently compared with the conventional machining.
Patent JP-H06290138-A (JP)
Title: Address bus control system
Inventor: TANAKA SHINSUKE
IPC: G06F13/16
Filed: 1993-03-31
Abstract: PURPOSE:To minimize the generation of noises and also to shorten the access time to a memory by providing an address increment function on a device set at the address receiving side. CONSTITUTION:An address generating circuit 110 included in a device 100 set at the address transmitting side activates and outputs an increment state signal 111 if the address to be generated has a value equal to the value obtained by just increasing the precedent address by 1. An output buffer circuit 120 suppresses the address 112 generated by the circuit 110 and fixes an output address 121 of the transmitting side. Meanwhile, a device 200 set at the address receiving side latches an unincreased address by a register 211 and then increases the address to produce an internally generated address 214. Thus, an address 221 of the receiving side is acquired. As a result, an address bus can be set at a fixed level in an increment mode.
Patent JP-H08273958-A (JP)
Title: Method for manufacturing rare earth bond magnet
Inventor: ISHIKAWA MASAYUKI
IPC: H01F1/053
Filed: 1995-03-30
Abstract: PURPOSE: To obtain a method for manufacturing a rare earth bond magnet for preventing a compound from being centered and obtaining a uniform magnetic distribution. CONSTITUTION: A process for obtaining a compound 1 by kneading the magnetic power of rare earth - transition metal - boron system and a resin binder, a process for performing injection molding by filling the compound 1 into a specific mold 2 from an injection part 8, and a process for performing magnetization to a molding after injection molding are at least included. A gate 3 may be a multiple-point gate where a plurality of gates are uniformly arranged or a film gate where a gap which is an injection port is formed over an entire periphery. A process for forming an extraction part at a position facing the gate 3 via the mold 2 and pulling out the compound from the extraction part while filling the compound 1 into the mold 2 from the gate 3 may be added.
Patent JP-H01244922-A (JP)
Title: Foreign matter warning device for door part
Inventor: WATANABE TSUTOMU
IPC: B60R16/02
Filed: 1988-03-28
Abstract: PURPOSE:To enable foreign matter for its capture or the like in a door part to be economically alarmed by respectively providing an alarm means acting unless light from a light emitting means is properly incident on a light receiving means and a power supply means supplying power to each means only when necessary. CONSTITUTION:A light emitting circuit 10 is connected to a light emitting diode 12. Light of the light emitting diode 12 is incident on a photodiode 14, and its output side connects a light receiving circuit 16. Further the light receiving circuit 16 connects its output side to an input side of an alarm circuit 18. A power supply circuit 20 is connected respectively to the above described circuits 10, 16, 18. Here the power supply circuit 20 is constituted so as to supply power when both an ignition switch and a door switch are placed in an on-condition. By this constitution, when a door part is in a condition catching foreign matter or half door, the alarm circuit 18 generates an alarm because of no proper incidence of light from the light emitting diode 12 on the photodiode 14.
Patent JP-H03273630-A (JP)
Title: Method and apparatus for manufacturing semiconductor device
Inventor: SOSHIRO YUUJI
IPC: H01L21/316
Filed: 1990-03-23
Abstract: PURPOSE:To process the formation and the flowing of a BPSG film in the same step by forming the BPSG film on a semiconductor wafer by a pressure-reduced CVD method, thereafter returning the inside of a furnace into normal pressure, heating the wafer in a steam atmosphere at 800 deg.C or higher, and performing the flowing of the BPSG film. CONSTITUTION:A heat source 9 controls and keeps the inside of a furnace 1 at a specified temperature. A pipe to a combustion device 6 and pipes to organic-metal-compound feeding devices 3-5 are attached to a flange part 10 at one end of the furnace 1. A vacuum pump 2 is attached to the other end by way of an evacuating valve 7, and a pipe to a heat exhausting line 8 is also attached to the other end. A semiconductor wafer is inserted into the furnace and set at 750 deg.C. The pressure is reduced to 3Torr or less. Then nitrogen gas is made to pass through the feeding devices 3-5 of TEOS, TMB and TMP and evaporated. The gas is introduced into the furnace 1. A BPSG film is formed to a specified thickness. The nitrogen gas substitutes for the atmosphere in the furnace 1, and the nitrogen atmosphere at the normal pressure is formed. Then, the temperature is increased to 900 deg.C. Oxygen and hydrogen are supplied into the combustion device 6. the generated steam is sent into the furnace 1 and kept for 60 minutes. Then the flowing is performed for the BPSG film, and the surface is flattened.
Patent JP-S57188837-A (JP)
Title: Wire bonding device
Inventor: ENDOU GOROU
IPC: H01L21/60
Filed: 1981-05-15
Abstract: PURPOSE:To eliminate the need for the conformity of parallel and the adjustment of pressure by mounting two guide rollers, a space thereof can be adjusted, between a spool and a clamper for cutting a wire. CONSTITUTION:The bonding wire 20 forwarded from the spool 40 is inserted into a capillary 21 through the guide rollers 28, 29 and the clamper 24 for cutting the wire and connects a pellet and an external lead, but said guide rollers 28, 29 are given frictional force, and the space between the rollers can be adjusted. Accordingly, the excessive wire is not delivered from the spool 40, the wire is delivered from the tip of the capillary only by length necessary for forming a normal wire loop, the frictional force of the wire becomes larger by bringing one guide roller near tothe other guide roller, and proper frictional force is given to the wire through the adjustment.
Patent JP-S51149768-A (JP)
Title: Semiconductor electric circuit used mostly for intermittent operations
Inventor: MANO YOSHIJI
IPC: H01H47/02
Filed: 1975-06-17
Abstract: PURPOSE: To obtain a semiconductor electric circuit which is capable of intermittently operating electric machines with simple operations. 
     COPYRIGHT: (C)1976,JPO&Japio
Patent JP-S63241977-A (JP)
Title: Semiconductor laser
Inventor: OE KUNISHIGE
IPC: H01S5/12
Filed: 1987-03-30
Abstract: PURPOSE:To obtain a semiconductor laser stable against variations in a temperature and an optical output by forming an optical guide layer and a clad layer of both sides between which an active layer of a distributed feedback semiconductor laser is disposed of a semiconductor having a light absorption coefficient of the reciprocal of the length of a laser resonator. CONSTITUTION:An optical guide layer 4 and a clad layer 2 of both sides between which an active layer 3 of a distributed feedback semiconductor laser is disposed are formed of a semiconductor having an absorption coefficient of the reciprocal of the length of a resonator. Then, the value of the same degree as a spectral beam width obtained by heretofore integrating with a semiconductor optical guide is stably obtained even if a temperature and an optical output are varied. Accordingly, a spectral beam width is narrowed without raising a threshold value. Thus, a semiconductor laser stable against the variations in the temperature and the optical output can be obtained.
Patent JP-H01245622-A (JP)
Title: D/a conversion method
Inventor: MORI TAKESHI
IPC: H03M1/82
Filed: 1988-03-26
Abstract: PURPOSE:To improve resolution and response by integrating a reference voltage for a time in accordance with the duty ratio of each pulse signal of the PWM signal of a digital signal and outputting the hold value of the integration value. CONSTITUTION:A D/A conversion circuit 2 converts a PWM signal X given from a one-chip MCU 1 into an analog signal based on control signals A and B given together with the PWM signal X. That is to say, an integration means 5 integrates (integrated inversely) a reference signal -VR (+VR) given from a reference signal generating part 3, the reference signal -VR is integrated while the PWM signal X is at a High level and when the PWM signal X is switched to a Low level, the integration value up to the sampling period of the +VR is subtracted from the integration value till then. Consequently, in one D/A conversion cycle, an analog signal VOUT2 corresponding to the duty ratio of one pulse signal of the PWM signal X is obtained through a sample-hold means 8. Thus, the resolution and the response are improved.