baber/WOPTO huggingface dataset:
Patent JP-2000080161-A (JP)
Title: Process for producing high molecular weight polycarbonate and electrophotographic photoreceptor prepared from the polycarbonate obtained by the process
Inventor: YAO KENJI
IPC: G03G5/05
Filed: 1998-10-29
Abstract: PROBLEM TO BE SOLVED: To provide a process for producing high molecular weight polycarbonate easily by a polymerization process which is safe for the human body and has no bad influence on the environment and a photoreceptor prepared from the polycarbonate. SOLUTION: A polymeric polycarbonate is produced by polymerizing a diol and a carbonate diester by an ester interchange reaction in which the two compounds are heated in the presence of a basic oxide catalyst. The amount of the catalyst is preferably 20-100 ppm based on the polycarbonate formed, and the polymeric polycarbonate is preferably prepared by cooling the polycarbonate formed by the ester interchange reaction and separating it from the solvent solution. The resultant high molecular weight polycarbonate has preferably a weight average molecular weight of 50,000 or more. Electrophotographic photoreceptors containing the high molecular weight polycarbonate as a binding resin are of a high-speed and highly stable and can give high-quality images for a long period of time.
Patent JP-H06137015-A (JP)
Title: Pivot hinge
Inventor: KUME TOKUO
IPC: E05D7/081
Filed: 1992-10-21
Abstract: PURPOSE:To easily fit a door and a door frame at an accurate position after the fitting position of the door is changed in the jointed condition of a pivot hinge to the door or the door frame. CONSTITUTION:A pivot hinge is provided with a pair of bodies 1 fixed separately at a door and a door frame, a connection pin 2 connected to be rotatable in the body 1 and a fixture 5 fixing the connection pin in the body 1. The connection pin 2 has a pivot 3 at one end thereof and a rotary hole 3 at the other end thereof where the pivot 3 is inserted. The body 1 has an insertion recession 6 where the connection pin 2 is rotatably inserted. One or both centers of the pivot 3 and rotary hole 4 of the connection pin 2 is eccentric against the center of the insertion recession 6. The position that the connection pin 2 is fixed in the insertion recession 6 is changed and the position of the pivot 3 or the rotary hole 4 is adjusted.
Patent JP-H02153361-A (JP)
Title: Manufacture of toner
Inventor: KOMOGUCHI SHINJI
IPC: G03G9/08
Filed: 1988-12-05
Abstract: PURPOSE:To uniformize dispersion of toner additives by the solution method by melting and kneading toner components and dissolving or dispersing it into a prescribed solvent, and then dispersing it into an aqueous system. CONSTITUTION:The spherical toner particles are prepared by melting and kneading the toner components comprising a binder resin (A) and the toner additives (B) in advance, and dissolving or dispersing them in a solvent substantially incompatible with water, such as a mixture of toluene and chloroform, to obtain a toner preparation solution, dispersing this solution into an aqueous system, and next, heating and stirring them to evaporate the solvent. A styrene type copolymer and the like can be used for the resin A, and a colorant, an electric charge control agent, a wax, and the like can be used for the additives B, thus permitting the additives B to be well and finely dispersed and the toner particles uniform in composition to be obtained.
Patent JP-S63163613-A (JP)
Title: Constant current source circuit
Inventor: TAKADA HIDEAKI
IPC: G05F3/22
Filed: 1986-12-26
Abstract: PURPOSE:To reduce influence due to the fluctuation of a supply current being put on a constant current output even when the Early voltage of a transistor is low, by connecting 7th-9th transistors between the collectors of 1st-3rd transistors whose emitters are connected to a supply voltage negative side terminal and those of 4th-6th transistors of reverse conduction types whose emitters are connected to a supply voltage positive side terminal. CONSTITUTION:The emitter of the 7th transistor 7 is connected to a resistor 10, and the collector and the base to the collector of the 6th transistor 6, and the emitter of the 8th transistor 8 is connected to the collector of the second transistor 2, and the base to the base of the 7th transistor 7, and the collector to the collector of the 5th transistor 5. Also, the emitter of the 9th transistor 9 is connected to the collector of the 3rd transistor 3, and the base to the base of the 8th transistor 8, and the collector to the collector of the 4th transistor 4. In such way, the influence due to the low level of the Early voltage of the constituting transistor and the fluctuation of the supply voltage even when they exist can be reduced.
Patent JP-H03169165-A (JP)
Title: Shading correction device for image reader
Inventor: KOMAGAMINE KATSUMI
IPC: G06K7/00
Filed: 1989-11-28
Abstract: PURPOSE:To obtain the best picture at all times by facing a white board to a focus of an image reader before reading of a read object and retrogressing the board from the focus at the reading. CONSTITUTION:When an image reader 36 reads a card C, a white board 40 is escaped from a focus and not in the way of feeding of the card C. On the other hand, before the start of reading, the white board 40 faces the focus to correct the white balance. Thus, the best picture is always obtained. Furthermore, the white board 40 is not in contact with the card C and directed downward, then no dust nor dirt is caused.
Patent JP-H05211691-A (JP)
Title: Monitor system
Inventor: SUEOKA MASABUMI
IPC: H04Q9/00
Filed: 1991-11-25
Abstract: PURPOSE:To transmit the state change information on the monitoring items produced at a monitored station in the least time in a monitor system comprising a monitor station and plural monitored stations. CONSTITUTION:The monitored stations 2-4 are provided with the low-speed FSK signal transmitters 12a and 12b which transmit the monitoring items as the typical information of the stations in a steady state, a high-speed FSK signal transmitter 13 which transmits the information on the monitoring items having the state changes to a monitoring station 1 at a high speed, a control circuit 14 which controls those FSK signal transmitters, and an FSK transmitter/ receiver 6 which has a low speed and a common frequency. Meanwhile the station 1 is provided with the low-speed FSK signal receivers 7-1-7-N which receive the low-speed FSK signal from each station in a normal state, a high- speed FSK signal receiver 8 which receives the data obtained with occurrence of a state change, an FSK transmitter/receiver 6 the same as the monitored station, and a control circuit 10. In such a constitution, the information is sent to the station 1 at a high speed when a state change occurs. Then the transmitter/receiver 6 is used for information and recognition of the state change of each station.
Patent JP-H06164832-A (JP)
Title: Picture reader
Inventor: KITANI YUKITOSHI
IPC: H04N1/04
Filed: 1992-11-18
Abstract: PURPOSE:To attain quick and excellent endorser print by adding binary picture data generated by a picture data character insert means to binary picture data obtained by reading an original and outputting the picture data after addition. CONSTITUTION:Data of font ROMs 81-83 corresponding to a read density are copied by a CPU 80 to a font memory 84 when endorser print is designated by an external device. Then endorser recording data received by the external device are written in a text memory 85. Then an output of a date time IC 90 is written in a text memory 85. A shift register 88 converts endorser picture data in the unit of 8 bits outputted from the font memory 84 into serial endorser picture data. An adder circuit section 89 adds the endorser picture data to picture data ID0 obtained by reading the original to generate picture data ID0'.
Patent JP-H0563746-A (JP)
Title: Psk modulation circuit
Inventor: MORIMOTO YOSHINORI
IPC: H04L27/20
Filed: 1991-11-25
Abstract: PURPOSE:To eliminate the need for a natural binary number - Gray code conversion circuit by generating a polyphase carrier signal with a polyphase carrier generating circuit including a digital frequency divider circuit so as to allow a multiplexer to select a carrier signal. CONSTITUTION:A serial data input is converted into 2-bit parallel data by an S/P circuit 10 based on a transmission rate clock fDR, the data are given to a conversion circuit 30, in which gray code natural binary conversion is implemented and the result is accumulated. That is, a preceding output delayed by a parallel delay circuit 13 and a current output are added and the result is fed to a multiplexer 26 as parallel data. On the other hand, four-phase carrier signals generated by a 4fd oscillation circuit 20 are fed to selection inputs of the multiplexer 26. Thus, the similar action to the natural binary number - gray code conversion is implemented depending which carrier is fed to the selection input of the multiplexer 26. Thus, the natural binary number - gray code conversion circuit is not required to simplify the circuit configuration.
Patent JP-H02155523-A (JP)
Title: Compound caulking device for parts supplying hoop material
Inventor: TSUJI YOSHIHARU
IPC: B21K25/00
Filed: 1988-12-07
Abstract: PURPOSE:To cut and caulk the brush of a resistor at the same stage by composing a compound caulking device for supply parts of hoop material for the knob of a semi-fixed variable resistor of a base material hoop cutting die and a cutting and a caulking punch moving vertically under it. CONSTITUTION:A stripper plate 37, a base material hoop 12 and the cutting die 31 are attached by both springs 32, 38, a caulking punch 39 is lowered as far as the bottom surface of the base material hoop 12, then, the cutting die 31 is lowered to cut the brush 13. When the brush 13 is guided by the sides of a pilot pin 36 and the cutting die 31, the base material hoop 12 falls and the brush continues to fall further, while it is attached to the upper surface of the cutting punch 35 and the lower surface of the base material hoop 12. When the press passes the bottom deal center, the bottom surface a rivet 14 is pressed by a caulking punch 39 and the pilot pin 36 and the brush can be cut and caulked at the same stage.
Patent JP-H05125984-A (JP)
Title: Fuel injection amount controller for internal combustion engine
Inventor: KITAJIMA SHINICHI
IPC: F02D41/02
Filed: 1991-10-29
Abstract: PURPOSE:To properly control the amount of fuel supplied to an internal combustion engine, especially one that uses mixed fuel of gasoline and alcohol, in starting the engine at high temperatures. CONSTITUTION:A fuel injection amount controller includes an NE sensor 5 for detecting the operating state of an internal combustion engine 1, a fuel injection amount calculation means 3c for calculating the amount of fuel injected by a fuel injection valve 12 according to operating states, an ALC sensor 23 for detecting the alcohol concentration of fuel, a TW sensor 2 for detecting the temperature of cooling water, and a pressure governing valve 17 for controlling injection pressure of fuel to a constant level when cooling water temperature is higher than a predetermined value. The controller further includes a solenoid valve 21 for further raising injection pressure, a PBA sensor 10 for detecting pressure within a suction pipe 6, a PA sensor 26 for detecting atmospheric pressure, a differential pressure calculation means 3b for calculating the differential pressure between the internal pressure of the suction pipe 6 and atmospheric pressure, and a fuel injection amount correction means 3b by which the amount of injection of fuel calculated by the fuel injection amount calculation means 3b is corrected through subtraction according to the pressure detected by the PBA sensor 10 when the injection pressure is increased.
Patent JP-H09125005-A (JP)
Title: Image coating
Inventor: OZAWA MASARU
IPC: C09D183/04
Filed: 1995-11-02
Abstract: PROBLEM TO BE SOLVED: To obtain an image excellent in resistance to scuffing by coating an image given by a liquid toner on its surface with a coating layer mainly comprising a specific copolymer with image quality improved because the coating layer gives the gloss to the image as well. SOLUTION: The surface of an image output by a recording technique which creates an image by using a liquid toner is coated with a solution mainly containing an organopolysiloxane graft copolymer and the coated layer is dried. The copolymer is preferably prepared by copolymerizing (A) an organopolysiloxane bearing a radical-polymerizable group and (B) a radical- polymerizable monomer mainly comprising a (meth)acrylic ester and/or styrene. The component A is preferably a radical-polymerizable silicone macromonomer of formula I (R<3> is H, methyl; R<4> is a 1-12C divalent hydrocarbon; R<5> is mehyl, trimethylsiloxy; R<6> is a 1-4C monovalent hydrocarbon; n is 3-200; m is 1-3). The component of formula I is prepared, for example, by reaction between compounds of formulas II and III.
Patent JP-H02160320-A (JP)
Title: Key board switch
Inventor: YOSHINO MASATAKA
IPC: H01H13/70
Filed: 1988-12-09
Abstract: PURPOSE:To obtain a light key board of simple structure, by providing a sealed chamber having compressed air stored therein and capable of expanding an contracting so as to force a key top to move between on and off positions thereof. CONSTITUTION:When a key top 1 in a key board switch 1 is pushed down, the key top 1 is pushed up to its initial position by a pushing force exerted by an air spring to push the key top 1 toward its off position. The pressure P of compressed air in the air spring and the spring constant k of the air spring are in linear proportion to each other. In the key board switch, a sealed chamber 41 having compressed air stored therein urged to contract by a force exerted thereon, so that the key top 1 shifts to its on or off position and is allowed to restore to its initial position by the restoring force of the compressed air. The key top can thus be put back to its initial position by means of simple structure using the air spring, and the weight of the key board device can then be made less heavy.
Patent JP-H02157599-A (JP)
Title: Operation controller for heat exchanger cleaning apparatus
Inventor: INAGAKI SHUICHI
IPC: F28G15/00
Filed: 1988-12-09
Abstract: PURPOSE:To perform cleaning of a heat exchanger at an optimum time by a method wherein electric potential is detected at two or more points in a region up to a cooling tube, and a heat exchanger cleaning apparatus is brought into operation when the differences between the detected values of electric potential and target values for two or more points become larger than predetermined values. CONSTITUTION:Voltage sensors 17a, 17b, 17c, 17d, 17e, and 17f are arranged inside a water chamber 10 to detect electric potential in the bottom, middle and ceiling regions. The electric potential signals from the voltage sensors 17a-17f are input to an electric potential detecting device 18 where the signals are pretreated for digitizing, converted into digital form, and temporary stored. This electric potential data re input to an electric potential judging device 19 and calculated. When the calculated results for four out of six electric sensors 17a-17f, i.e. a majority, exceed the target values, an operation start signal is issued to an operation controller 20 of a heat exchanger cleaning apparatus 1 so that pump 6 is started and a sponge ball is fed into a circulation pipe 8 through a feed pipe 3.
Patent JP-H08131411-A (JP)
Title: Automatic hemadynamometer for measured value recording by floppy disk
Inventor: SUZUKI KAZUTARO
IPC: A61B5/022
Filed: 1994-11-07
Abstract: PURPOSE: To simply and surely record a measured result and to provide a health condition managing system for blood pressure by adding a writing device for a floppy disk in an automatic hemadynamometer. CONSTITUTION: This automatic hemadynamometer is formed by adding functions 5, 6 to record measured blood pressure data in the floppy disk 7 on an ordinary automatic hemadynamometer. Software corresponding to the automatic hemadynamometer is written in the floppy disk 7, having universality. In this way, the blood pressure data for a long period of an individual can be recorded by inserting the floppy disk 7 classified by every individual into a floppy disk writer 5. Also, the floppy disk 7 taken out from the floppy disk input/output port 6 of the automatic hemadynamometer is read by the software written in the floppy disk 7 in advance, and it can be recognized as the graph of fluctuation of blood pressure.
Patent JP-H03169016-A (JP)
Title: Manufacture of semiconductor device
Inventor: OKAMURA KENJI
IPC: H01L21/316
Filed: 1989-11-28
Abstract: PURPOSE:To restrain a precipitate from being produced during a heat treatment, to restrain a disconnection and a short circuit of an aluminum interconnection from being caused during an aluminum wiring process as a next process and to enhance a yield and reliability by a method wherein a BPSG film (a silicon oxide film) is heat treated in a low-pressure atmosphere. CONSTITUTION:A silicon oxide film 12 and a gate polysilicon film 13 are formed on a semiconductor substrate 11; after that, a BPSG film 14 is formed on the whole surface. Then, the BPSG film 14 is heat-treated in a low-pressure atmosphere and is made to reflow. At this heat treatment, a partial pressure of gases of phosphorus and boron which are generated is low; as a result, a precipitate is not produced, and the smooth BPSG film can be obtained. Thereby, a disconnection and a short circuit of an aluminum interconnection are not caused in an aluminum wiring process as a next process; a yield and reliability are enhanced.
Patent JP-H01150447-A (JP)
Title: Soft magnetic fiber having high square loop hysteresis
Inventor: ICHIYANAGI TAKAHARU
IPC: D01F9/08
Filed: 1987-12-08
Abstract: PURPOSE:To miniaturize an electromagnetic instrument by spinning molten magnetic material, heat-treating and forming fiber having the specific diameter, coercive force and the prescribed square loop ratio under DC magnetized condition. CONSTITUTION:The magnetic material composing of Fe-Si based alloy, etc., is melted and injected into cooling liquid layer 8 from a nozzle 2 having <=100mum the diameter in rotating liquid spinning apparatus, etc. Then, the molten magnetic material is wound in a rotating drum 6 as fine wire 4 and the fiber forming primary arm of dendritic crystal having all the same angle within 20 deg. to the axial direction is formed. Successively, interval strain of the fiber in this dendritic structure is removed to eliminate the dendritic structure, and the soft magnetic fiber is obtd. By this method, the fiber having <=100mum the diameter, <=0.3 oersted the coercive force and <=0.9 the square loop ratio under DC magnetized condition is formed. Therefore, the electromagnetic instrument using this fiber is drastically miniaturized.
Patent JP-H07159113-A (JP)
Title: Probe for scanning tunneling microscope and manufacture thereof
Inventor: SUZUKI KAZUO
IPC: G01B7/34
Filed: 1993-12-10
Abstract: PURPOSE:To provide a probe without a step difference formed at a boundary between the base part and tip part. CONSTITUTION:A cylindrical probe material having conductivity is machined into a cylindrical base part 11, a bottom having the same section as the base part 11, and a nearly conical shaped tip 12 having the same rotary axis as the base part 11 in such a manner that a tip angle alpha becomes a desired value. Then, the apex of the conical body is subjected to electrolytic polishing or etching so that a tip diameter (d) of the tip 12 may become a desired value. Or, the probe material is immersed in an electrolyte or etching solution and the liquid surface is moved at a specified speed toward one end side of the probe material in the liquid so as to form the tip angle alpha of the tip 12 into a desired value.
Patent JP-H07159714-A (JP)
Title: Rotary polygon mirror driving device
Inventor: OHATA KOICHIRO
IPC: G02B26/10
Filed: 1993-12-10
Abstract: PURPOSE:To solve the degradation in the performance of a rotary polygon mirror by bearing oil and to realize excellent rotating accuracy and low wobbling of surface, noise and cost of the rotary polygon mirror with its driving device to be used for an LBP. CONSTITUTION:One end of an elastic member 11 is pressed to a second oilless plane bearing 10 and the other end of the elastic member 11 is fixed to a base plate 5. The oilless plane bearing 10 is energized with force in nearly a radial direction of a revolving shaft 1, by which the sure sliding contact of a first oilless plane bearing 6 and the revolving shaft 1 is made possible. Since the revolving shaft is thus capable of making stable rotational motion, the contamination of the rotary polygon mirror by oil splashing is prevented and the jitters, the wobbling of surface of the rotary polygon mirror 2 and the noise are surely prevented. The pollution of the rotary polygon mirror 2 is further lessened by fixing a rotor boss 13 between the second oilless plane bearing 10 and the rotary polyhedral mirror 2.
Patent JP-H05151616-A (JP)
Title: Optical recording medium, production thereof and reproducing device
Inventor: HORIGOME SHINKICHI
IPC: G11B7/24041
Filed: 1991-11-26
Abstract: PURPOSE:To increase recording density. CONSTITUTION:Plural reflection layers having signal pits 2, 5, 8 for separate pieces of information are constituted of dyestuff films 3, 6, 9 and the signals of the respective reflection layers are read out by the reflected light beams of light beams 11, 12, 13 having the wavelengths varying from each other. The dyestuff films on the incident side of light are constituted of the dyestuff to allow the transmission of the light for reading out the other dyestuff films on the side opposite therefrom. The optical recording medium is produced by repeating the operations of forming the dyestuff films on a substrate 1 having the signal pits, placing a UV curing resin on a metallic mold having the other signal pits, pressing the surface having the dyestuff films of the substrate thereto to cure the resin, parting the metallic mold and further forming the other dyestuff films on the signal pits.
Patent JP-H03173630-A (JP)
Title: Manufacture of formed plastic molded body
Inventor: TACHIKAWA MITSURU
IPC: B29C44/00
Filed: 1989-12-01
Abstract: PURPOSE:To obtain a molded body having a desired shape by adding a foaming agent to a thermoplastic resin powder and bringing this resin powder into contact with a heating medium within a preparatory foaming tank to subject the same to primary foaming and injecting the foamed resin powder in a mold having a desired shape and supplying a heating medium in the mold to perform secondary molding in the mold. CONSTITUTION:A raw material 10 to which a foaming agent 20 is added is supplied to a preparatory foaming tank 30 and a heating medium 40 is injected in the preparatory foaming tank 30. The formed primary foamed particles 50 are supplied in a mold 70, for example, through a proper injection apparatus 60 such as an ejector. The injection apparatus 60 is connected to a proper heating medium supply source 80 such as a boiler or a compressor to inject the heating medium in the mold 70 along with the primary foamed particles 50. The primary foamed particles 50 of the thermoplastic resin powder are subjected to secondary molding in the space of the filling mold to expand and the foamed particles are mutually welded to fill the total volume of the space to constitute a molded body having a desired shape.