baber/WOPTO huggingface dataset:
Patent JP-2000162604-A (JP)
Title: Liquid crystal aligning agent and its preparation
Inventor: KOJIMA KAZUE
IPC: G02F1/1337
Filed: 1998-11-25
Abstract: PROBLEM TO BE SOLVED: To obtain a liquid crystal aligning agent, having improved wettability and adhesion to a substrate by using a mixed solvent consisting of an aprotic polar solvent and an alcoholic solvent and a specified polyimide resin precursor. SOLUTION: A polyimide resin precursor, having repeating units represented by the formula, is dissolved in a solvent consisting of 25-60 wt.% aprotic polar solvent and 70-45 wt.% alcoholic solvent and/or glycolic solvent at 0.5-20 wt.% concentration to obtain the objective liquid crystal aligning agent. In the formula, R1 is a tetravalent organic group constituting a tetracarboxylic acid or its derivative, R2 is a divalent organic group constituting diamine, R3 is H or 1-4C alkyl, (m) is a positive integer and at least one of R1 and R2 contains a cycloaliphatic structure. Occurrence of pinholes and peeling are suppressed, and wettability and adhesion to a substrate can be improved.
Patent JP-2001156369-A (JP)
Title: Optical amplifier
Inventor: TOMOFUJI HIROAKI
IPC: H04B10/29
Filed: 1999-11-25
Abstract: PROBLEM TO BE SOLVED: To provide an optical amplifier capable of realizing a wider input dynamic range and low noises. SOLUTION: The optical amplifier has a wavelength-band division section dividing light from a transmission line into a plurality of bands, a plurality of the first optical amplifying sections changing the command of an optical amplifying output when the alteration of divided light set in response to each divided light reaches a fixed value, a plurality of attenuating sections attenuating outputs from a plurality of the first optical amplifying sections respectively, a plurality of the second optical amplifying sections amplifying outputs from a plurality of the attenuating sections respectively, a mixing section mixing outputs from a plurality of the second optical amplifying sections, and a plurality of control sections changing the quantity of the attenuation of a plurality of the attenuating sections, respectively.  The control sections alter the quantity of the attenuation of the attenuating sections in response to the difference of the commands of optical amplifying outputs before and after the change when the commands of the optical amplifying outputs of the first optical amplifying sections are changed. Accordingly, the deterioration of a noise index can be inhibited without altering the output-light levels of the attenuating sections before and after the variation of input-light levels.
Patent JP-H02177552-A (JP)
Title: Semiconductor device, and manufacturing method and device therefor
Inventor: KUWABARA YASUO
IPC: H01L23/28
Filed: 1988-12-28
Abstract: PURPOSE:To obtain a semiconductor device having a good humidity resistance at low cost and in a short period by a method wherein a chip, which is mounted on a lead frame and is wire bonded on the lead frame, and the lead frame in the periphery of the chip are pinched in the resins of an upper cover and an under cover, are formed integrally and are resin-sealed. CONSTITUTION:A chip 5, which is mounted on a lead frame 4 and is wire bonded on the lead frame 4 by wires 6, and the lead frame 4 on the periphery of the chip 5 are pinched in the epoxy resins 1 of an upper cover 2 with an epoxy resin 1 encapsulated in its inner side and en under cover 3 with an epoxy resin 1 encapsulated in its inner side, are formed integrally and are resin-sealed. Thereby, as a semiconductor device is manufactured using a simple manufacturing device and by a simple manufacturing method, the manufacturing period of the device can be also made short. Moreover, as a resin is used for the sealing part, a material cost can be also reduced compared to a ceramic package and moreover, moisture is prevented by the upper and lower covers 2 and 3 and a humidity resistance is improved.
Patent JP-H09179490-A (JP)
Title: Map display device
Inventor: KAKEGAWA TAKASHI
IPC: G01C21/00
Filed: 1995-12-22
Abstract: PROBLEM TO BE SOLVED: To smoothly scroll a map at a high speed by temporarily displaying the region not affordable for the drawing process on the map displayed on a display device as a blank map without temporarily stopping the scrolling speed of the map, conducting the map drawing process on a memory during that time, and switching the blank map display to the map display when the drawing process is finished. SOLUTION: When a display control device 3 reads out the map data to be displayed on a display device 5 from a memory 4, a data selecting device 6 detects divided regions on the memory 4 via a synchronization signal generating counter for the image signal based on the command from a micro-processor 1. The data selecting device 6 selects whether to display the data read out for multiple divided regions on the memory 4 or the data for the blank map display prepared in the data selecting device 6 in advance.
Patent JP-H08159092-A (JP)
Title: Turbo fan
Inventor: HARAGUCHI KAZUYA
IPC: F04D29/42
Filed: 1994-12-06
Abstract: PURPOSE: To provide a turbo fan which can secure regidity and moldability even in the case that a main plate is thinned, and reduce its weight over a conventional limit. CONSTITUTION: A blade leading end side rib 1 and a blade rear end side rib 2 are formed on one side surface 12b of a main plate 12 formed with a blade 11 at the other side 12a in a diameter direction, while both ribs are connected to each other by means of a connection rib 3. Blade reinforcing ribs 4a, 4b are formed on a continuous connection portion of the blades 11. The blade leading end side rib 1 is extended to a center of the main plate 12. At the time of molding, resin is charged from the rib 1. Upper surfaces of the ribs are continuously connected to the side surface 12b of the main plate 12 with a smoothly curved surface.
Patent JP-H07199746-A (JP)
Title: Heating part controller for image forming device
Inventor: YAMASHITA YUJI
IPC: G03G15/20
Filed: 1993-12-28
Abstract: PURPOSE:To shorten the time until operation enable state in a time band of higher use (frequency and to reduce power consumption in the time band of lower frequency by providing an operation schedule storage means, a heating part control means and an updating means, and controlling corresponding to real operation condition. CONSTITUTION:An input key part 61, a display part 62 and a thermistor 37, and the operation schedule storage part 71 constituted of a memory storing a relation between a date, the time band and the operation condition of a heating part are connected to a control part 70. A heater driver 72 controls a heater 36 according to the content of the operation schedule storage part 71. The operation schedule table of the storage part 71 stores a count value corresponding to a copy operation time at every time band for last five days, and the count value corresponding to the copy operation time at every time band of the day. Since the count value corresponds no the frequency in use, a setting temperature is set so as to become higher also according to that the count value becomes higher. Thus, the time until the operation becomes enable in the time band with the higher frequency in use is shortened, and the power consumption is reduced in the lower frequency in use.
Patent JP-2001155337-A (JP)
Title: Method for recording and reproducing information, device for recording and reproducing information and information recording medium
Inventor: KIRINO FUMIYOSHI
IPC: G11B7/24062
Filed: 1999-11-26
Abstract: PROBLEM TO BE SOLVED: To provide an information recording medium and an information recording and reproducing device of high performance by providing a method for forming a minute recording domain and a method for reproducing the formed domain with high resolution as a coherent recording/reproducing system. SOLUTION: In the information recording device having at least a very minute light source and the information recording medium for recording information, the purpose described above is attained by reproducing information recorded on the information recording medium by irradiating an information recording medium surface with light emitted from a very minute light source and detecting change of reflectivities the light before cast to the information recording medium surface and the light after cast and reflection on the medium surface. Further it is most preferable that the very minute light source used in this invention is one where a slit having a minute pin hole on a proceeding way of the light is provided and a diameter of the pin hole is <=300 nm.
Patent JP-H05164116-A (JP)
Title: Joint structure of fiber reinforced plastic pipe
Inventor: SHIMADA MASAKI
IPC: F16B7/04
Filed: 1991-12-18
Abstract: PURPOSE:To utilize a property of a FRP pipe of obtaining a high reliability joint structure by forming a tapered thick wall joint part on an end of the FRP pipe to be fitted in a similar tapered outer metal joint while fastening fastening ring to an end of the outer joint. CONSTITUTION:While a thick wall joint part 10 is disposed on an end of an FRP pipe 1, a tapered part 12 diverging toward an end face 11 is formed on the outer peripheral surface of the joint part 12. On the other hand, while an outer metal joint 2 is formed of a plurality of split pieces, these split pieces are formed on the inner peripheral surface with a similar tapered surface 21. Also, the outer joint 2 is formed on the rear with a bearing part 23 projecting inside by a stage 22. The thick wall joint part 10 of the FRP pipe 1 is inserted into the outer joint 2 to lock the end face 11 in the stage 22 while the tapered parts 12, 21 fit each other. On the other hand, a fastening ring 3 is fitted in the outer peripheral tip of the outer joint 2 to fasten the outer joint to the wall joint part 10, so that a high reliability joint structure of the FRP pipe 1 is provided.
Patent JP-H07192219-A (JP)
Title: Magnetic head
Inventor: MURATA YUICHIRO
IPC: G11B5/245
Filed: 1993-12-28
Abstract: PURPOSE:To decrease the crosstalk without lowering the efficiency of an erasing head by nearly equalizing the product of the magnetic resistance of a center core and the magnetic resistance of a route arriving directly at a recording and reproducing core through the outside of a head from the signal of a medium on an erasing gap and the product of the magnetic resistance of a part where the erasing core and the erasing back core are jointed and the magnetic resistance of a recording and reproducing gap part. CONSTITUTION:PHI4 is a magnetic flux returning to Vm by passing the recording and reproducing gap part Rg, the recording and reproducing core part Rr and the erasing core part Re from the signal Vm of the medium on the erasing gap and the caption number 6 is a magnetic flux returning to Vm by passing the center core Rc, the recording and reproducing part Rr and the outside part Ro of the head from the signal Vm of the medium. The magnetic flux PHI flowing in the recording and reproducing core part Rr is a synthesized one of PHI4 and PHI6 and corresponds to the crosstalk which is given by equation I. The polarity of the crosstalk inverts from positive to negative and the efficiency of the erasing head lowers if the magnetic resistance Re of the erasing back core part is increased. The zero crosstalks are realized near the magnetic resistance Re by satisfying equation II.
Patent JP-H04267491-A (JP)
Title: Bar-code docoding controlling system
Inventor: TAIIKUANGU JIEN
IPC: G06K7/016
Filed: 1991-11-26
Abstract: PURPOSE: To compensate the difference in width of bars on a bar code label by measuring the read time of one bar to set the time of a timing device. CONSTITUTION: A controller 46 has timers 0 and 1. The timer O is used to measure the duration of one bar element or that of a combinational element called trunk. Each bar element is read within 4ms. When calculation of the character end time is determined, the timer 1 is stopped, and the time elapsed of the timer 1 is subtracted from 23.5ms as its initial load time. The obtained time is divided by 4.096ms to determine how many bar elements pass and are detected by a sensor. The character read speed is recorded in the controller 46, and this measured speed is a reference time for detection of characters following the end character.
Patent JP-H03223201-A (JP)
Title: Organ preservation liquid and organ preservation method
Inventor: KURODA YOSHIKAZU
IPC: A01N1/02
Filed: 1990-11-29
Abstract: PURPOSE:To preserve an organ by preparing an organ-preservation liquid containing stock liquid of a perfluorocarbon compound or an emulsion containing the compound in high concentration, dissolving oxygen in the liquid e.g. by bubbling and immersing an organ in the liquid. CONSTITUTION:The objective organ-preservation liquid contains, as an active component, a perfluorocarbon compound (preferably 9-12C perfluoro-hydrocarbon or perfluoro-tert-amine such as perfluorodecalin or perfluoro-N- methylperhydroquinoline) or an emulsion containing the compound in high concentration. The emulsion is an O/W-type emulsion containing a nonionic surfactant, a phospholipid, etc., as an emulsifier and having a perfluorocarbon concentration of >=70w/v%. Oxygen is dissolved in the above preservation liquid by bubbling preferably in use and an organ (especially pancreas or liver) is immersed and preserved in the liquid. The organ can be preserved for 72-120hr at 0-10 deg.C and a good result can be attained even if the warm blood-inhibition disturbance is present in the organ.
Patent JP-H01176491-A (JP)
Title: Elimination of suspended impurities by mixed-bed filter desalting device
Inventor: OTANI TAKU
IPC: G21F9/00
Filed: 1987-12-29
Abstract: PURPOSE:To eliminate suspended impurities efficiently by permitting primary cooling water for a BWR nuclear power generating station to pass through a specific mixed bed consisting of powder or powder cationic exchange resin and anionic exchange resin for filtration. CONSTITUTION:The moisture content of cationic exchange resin and anionic exchange resin is increased from the standard value of 45-55% of the conventional gel resin to 55-75%, and a resin bed is formed using such ion exchange resins. The primary cooling water of a BWR nuclear power generating plant is filtered to eliminate suspended impurities. Two different resin bed forming means are available: a means to increase the moisture content of either one of the cationic exchange resin or anionic exchange resin from the standard value of 45-55% of the conventional gel resin to 55-75% and a means to laminate a cationic exchange resin with a moisture content of 55-75% over a mixed bed top part of the conventional ion exchange resin.
Patent JP-H02180416-A (JP)
Title: Amplification degree variable type amplifier
Inventor: KUMANO MASAHIRO
IPC: H03G3/10
Filed: 1988-12-30
Abstract: PURPOSE:To simultaneously control the polarity and amplification degree of an output signal by means of a single gain control terminal by controlling the mixing ratio of current signals, which are mutually opposite in phase by means of a single common control terminal which is provided to the outside. CONSTITUTION:An amplifier 1 which can control the amplification degree has an input terminal 1, a single control terminal 3 and an output terminal 4. The control terminal 3 is set at the base commonly connected to third and sixth NPN TRs Q3 and Q6. In the circuit, by using a gain control signal Vcont, the current distribution ratio (m:n) of the Q3 to Q6 is changed, and the amplification degree is changed from -R2/R1 to R2/R1. Further while the said signal Vcont changes in a voltage range lower than a voltage VO of a reference voltage source VO, the output signal is produced in the same phase as that of the input signal. In a reverse case, the signal opposite in phase to the input signal is produced.
Patent JP-H03195023-A (JP)
Title: Semiconductor device
Inventor: MIYAZAWA HISASHI
IPC: H01L21/316
Filed: 1989-12-25
Abstract: PURPOSE:To obtain a protective insulating film which enhances the reliability of a metallization by a method wherein a relationship between a tensile stress of a first layer on the metallization and a compressive stress of a second layer on it is made optimum. CONSTITUTION:A protective insulating film of a two-layer structure composed of the following is installed: a first layer 9 which has been formed on a metallization 8 and which is in a state of a tensile stress; and a second layer 10 which has been formed on the first layer and which is in a state of a compressive stress. A ratio of a tensile force by the tensile stress of the first layer 9 to a compressive force by the compressive stress of the second layer 10 is set to a range of 1:100 to 1:3. The tensile force or the compressive force by the layer at this time is a force which has totaled the tensile stress or the compressive stress in the layer over its whole cross-sectional area; it is expressed by a product of the tensile stress or the compressive stress multiplied by the cross- sectional area. Thereby, it is possible to prevent a disconnection of the metallization by the stress of the protective insulating films 9, 10 and to increase the reliability of the interconnection.
Patent JP-H08173492-A (JP)
Title: Multipurpose operating table
Inventor: TAKEUCHI HIDEYUKI
IPC: A61G13/00
Filed: 1994-12-21
Abstract: PURPOSE: To provide a multipurpose operating table used both as for orthopedics and cerebral surgery and with superior operability by enabling a back plate or wainscot to be moved pivotally up to a specific angle in a vertical direction for an ascendable/descendable bed substrate and controlling the table by setting limitation on the angle in the switching of operations for orthopedics and cerebral surgery. CONSTITUTION: An elevation mechanism 2 is installed on a supporting table 4 running with a caster 3, and it can be ascended/descended by a signal from a control device provided on the lower face of the supporting table 4, and also, it is rotated vertically, horizontally and slid in the directions of X, Y. The back plate or the wain-scot 6 can be moved pivotally to 180 deg. in the vertical direction for the bed substrate 1, and it is controlled in such a range, for example, between 90 deg. in the upper direction and 40 deg. in the lower direction when a cerebral surgery mode is selected by a remote controller, and the one, for example, between 40 deg. in the upper direction and 90 deg. in the lower direction when an orthopedics mode is selected.  A traction frame 11 used in a mode as for orthopedics is used by fitting it in a main body while keeping a state in which it is placed on a housing stand 12.
Patent JP-H01175775-A (JP)
Title: Photo-driven mos semiconductor device
Inventor: NOZAKI YOSHIAKI
IPC: H01L27/146
Filed: 1987-12-29
Abstract: PURPOSE:To enhance the efficiency of photosensitivity of a photo-sensitive section, to shorten the charging time of the gate capacitance of a MOS FET and to produce a photo-driven MOS FET which may respond at a high speed, by a structure wherein a plurality of photodetectors are laminated on the main surface of a MOS semiconductor device through insulating films, respectively, in a multilayer. CONSTITUTION:Photodetectors 2 are laminated on the main surface of a MOS semiconductor device 1, and the MOS semiconductor device 1 is driven by utilizing the photoelectromotive force which is generated by the photodetectors 2. In such a photo- driven MOS semiconductor device, the plurality of photodetectors 2 are laminated on the main surface of the MOS semiconductor device 1 through insulating films 19, respectively, in a multilayer. For example, after an n<-> type epitaxial layer 4 is grown on an n<+> type substrate 3, a p<-> type well diffusion layer 5 is formed. Subsequently, a gate oxide film 7 is formed on the epitaxial layer 4, and a gate electrode 8 is then formed thereon. Further, an n<+> type diffusion layer 6 is formed, and thereby a vertical MOS FET is completed. Next, after an SiO2 film 14 is deposited on the surface of the epitaxial layer 4 over which the gate electrode 8 is formed, two layers of photodiode sections 2 are formed in a laminated construction.
Patent JP-H11239039-A (JP)
Title: Filter circuit
Inventor: SHIRAMATSU TOSHIO
IPC: H03H11/04
Filed: 1998-11-26
Abstract: PROBLEM TO BE SOLVED: To provide a filter circuit low in power consumption, hardly being affected by parasitic capacitance, and capable of being operated at a high frequency by actualizing arbitrary filter characteristics with one circuitry by combining four transistors and more than one capacitor. SOLUTION: A 1st transistor Q1 has its collector and base connected to each other and its collector connected to a Vcc node. A 2nd transistor Q2 has its collector connected to the emitter of the 1st transistor Q1. A 3rd transistor Q3 has its collector and base connected to each other and a 4th transistors Q4 has its collector connected to the emitter of the 3rd transistor Q3 and also has their base and collector connected to the 2nd transistor Q2 in cross relation. A 1st capacitor C1 is connected between the emitters of the 2nd transistor Q2 and 4th transistor Q4 and a 2nd capacitor C2 is connected between the collectors.
Patent JP-H07200086-A (JP)
Title: Reference current circuit and reference voltage circuit
Inventor: KIMURA KATSUHARU
IPC: G05F3/30
Filed: 1993-12-28
Abstract: PURPOSE:To provide highly accurate reference current circuit and reference voltage circuit provided with positive temperature characteristics and operated from a low voltage for which the influence of base width modulation and channel width modulation is less on a semiconductor integrated circuit. CONSTITUTION:A first transistor Q1 provided with an unit emitter area whose base and collector are connected through a first resistor R1 and a second transistor Q2 provided with the emitter area of K-fold (K is a positive number) whose base is connected to the collector of the transistor Q1 are both emitter-grounded and this constant current circuit is constituted. Then, the base of an emitter- grounded third transistor Q3 provided with the unit emitter area is connected to the collector of the transistor Q2 and diode-connected transistors Q4-Q6 constituting a current mirror circuit for driving the transistors Q1 and Q2 with an equal current are driven.
Patent JP-H03199857-A (JP)
Title: Air-conditioner
Inventor: HOSHI TAKAO
IPC: F25B47/02
Filed: 1989-12-27
Abstract: PURPOSE:To ensure a heat source in sufficient quantity capable of providing the heat load of room heating and defrosting by installing a compressor with two cylinders corresponding to two suction ports and two outdoor heat exchangers arranged in the relationship of the windward side and the leeward side. CONSTITUTION:A compressor 1 has two cylinders 2, 3 corresponding to two suction ports thereof. A control section 20 changes over the operates a four-way valve 4 when heating operation is started by an operating section 23, and a refrigerant is flowed in the direction of the arrow of a broken line, an indoor heat exchanger 7 works as a condenser and a windlee-side outdoor heat exchanger 5 and a windward-side outdoor heat exchanger 10 as evaporating sections and heating operation is executed when the compressor 1 is started. The control section 20 opens a two-way valve 12 periodically for a fixed time on the basis of the timing of an internal timer. Consequently, one part of a high-temperature gas refrigerant discharged from the compressor 1 is passed through a bypass pipe 11 and flows into the windward-side outdoor heat exchanger 10, melts frost adhering on said heat exchanger 10, and is sucked into the cylinder 3 of the compressor 1. Accordingly, a heat source in sufficient quantity providing the heat load of room heating and defrosting can be ensured.