baber/WOPTO huggingface dataset:
Patent JP-H0216525-A (JP)
Title: Optical modulator
Inventor: TOMITA AKIHISA
IPC: G02F1/025
Filed: 1988-07-05
Abstract: PURPOSE:To operate the optical modulator at a low voltage and to obtain a sufficient on/off ratio by providing a couple of a quantum well for electrons and a quantum well for positive holes which are coupled in terms of quantum mechanics across a barrier layer and obtaining a multiple quantum well structure where the quantum well for positive holes are at the same spatial position with the barrier layer as a waveguide layer. CONSTITUTION:An n-clad layer 12 formed of InP to 1mum thickness by doping Si and the waveguide layer 13 of the multiple quantum well structure are laminated on an n type InP substrate 11. When no electric field is applied, the wave motion function of electrons is symmetrical about an exchange of electrons between the quantum wells, so the electron wave motion function of the barrier layer has a large value. Consequently, the wave motion functions of electrons and positive holes have a large overlap and the transmissivity of light is small by the absorption of an active layer, so that an off state is obtained. Namely, switching between an on state and the off state is performed according to the localization of electrons between the two quantum wells which are coupled in terms of quantum mechanics. The localization of electrons is sensitive to the difference in potential between the two quantum wells. Consequently, the switching is performed with a small electric field and the optical modulator which operates at the low voltage is realized.
Patent JP-H0923089-A (JP)
Title: Arrangement method of electronic components
Inventor: FUKUKURA HISANOBU
IPC: G06Q50/04
Filed: 1995-07-04
Abstract: PROBLEM TO BE SOLVED: To provide an arrangement method of electronic components which is capable of massproduction of various kinds of electronic product in a short time. SOLUTION: When a rotary table 8 is rotated for all kinds of electronic components to be used in all electronic products to be manufactured, a plurality of velocity groups are classified by the allowable limit velocity of revolution of a mounting head 9, and a plurality of the velocity groups are subjected to sequencing. Concerning the each of the kinds of electronic products to be manufactured, the electronic components to be used are classified into electronic component groups different in the kind. The electronic component groups are classified into velocity group assemblages different in the velocity group. The velocity group assemblages are arranged in order in accordance with the sequencing. In this case, the electronic component groups in each of the velocity group assemblages are so arranged that the application frequency in a massproduction process is low when the groups are close to the adjacent velocity group assemblages.
Patent JP-S5870400-A (JP)
Inventor: ICHIKAWA SEIJI
IPC: G08G1/054
Filed: 1981-10-21
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-2000002499-A (JP)
Title: Carrier for throwing body
Inventor: KAKITA TAKEO
IPC: F41A9/42
Filed: 1998-06-16
Abstract: PROBLEM TO BE SOLVED: To prevent the projection carrying speed of a throwing body from lowering while suppressing the increase in size of a kinetic energy imparting means by making a guide groove extending in the axial direction of a tubular body at least partially in the tubular body and supporting the throwing body at connecting parts formed on the opposite side edges of the guide groove while touching the connecting part. SOLUTION: A guide groove 3 extending in the axial direction of a tubular body 1 is made at least partially at the lower part of a tubular body and a connecting part 4 is formed at the opposite side edges of the guide groove 3, i.e., on the boundary of an inner tubular body 2. The guide groove 3 is made in order to suppress vibration of a throwing body 7 (flying body) sliding in the inner tubular body 2 and defined by an arcuate face having smaller diameter than the throwing body 7 and the inner tubular body 2 where the throwing body 7 is supported onle by the connecting part 4 while touching. The connecting part 4 is formed close to the rear end and the guide groove 3 has a parallel part L1 having same depth and extending in the axial direction of the tubular body 1 and a front end part L2 symmetrical to the axis of the tubular body 1 and tapered forward.
Patent JP-S62129318-A (JP)
Title: Amphoteric polyimide precursor and production thereof
Inventor: KAMIKITA MASAKAZU
IPC: B01D71/52
Filed: 1986-07-16
Abstract: PURPOSE:To obtain the titled precursor capable of giving thin films having improved heat and chemical resistance, by reacting a tetracarboxylic acid dianhydride with an alcohol, converting the resultant compound into an acid halide and reacting the resultant acid halide with a specific compound. CONSTITUTION:A tetracarboxylic acid dianhydride expressed by formula I (R<1> is >=2C tetrafunctional group) is reacted with a compound expressed by the formulas R<3>OH and R<4>OH (R<3> and R<4> are 1-30C monofunctional aliphatic, monofunctional cyclic group or group formed by linking an aromatic group to an aliphatic group, group formed by substituting the above-mentioned groups with halogen, nitro, amino, etc., or H) to give a compound expressed by formula II, which is then converted into an acid halide in an anhydrous polar organic solvent at >=-10 deg.C. The resultant acid halide is then reacted with a compound expressed by formula III (R<5> and R<6> have the same meaning as R<3> and R<4>) at >=-10 deg.C to afford the titled precursor having repeating units expressed by formula IV (one of R<3>-R<6> is not 1-11C group or H).
Patent JP-S6413573-A (JP)
Title: Image forming device
Inventor: IWATA NOBUO
IPC: G03G15/08
Filed: 1987-07-08
Abstract: PURPOSE:To prevent an image carrier from permanently deformed by providing a pressure releasing means for removing or reducing a press-contacting force with which a process means abuts on the image carrier body in a proper time except the time of forming a visible image. CONSTITUTION:The process means which press-contacts with a photosensitive body 1 is separated from the photosensitive body 1 except in case of need and the pressure releasing means 50 and 50a for removing the press-contacting force which works on the photosensitive body 1 are respectively installed. And at the time of non-copying or at the time of forming no images, solenoids 83 and 83a are deenergized. Then, the respective solenoids 83 and 83a do not give pressure to a holder 78 and a developing case 84 through arms 81 and 81a, then the holder 78 and the developing case 84 are respectively energized in a direction separating from the photosensitive body 1 by springs 90 and 90a and a cleaning blade 15 and a developing roller 10 separate from the surface of the photosensitive body 1. Then, the press-contacting force with which the process means 15 and 10 abut on the photosensitive body 1 is removed. Thus, the partial permanent deformation on the surface part of the photosensitive body 1 can be prevented.
Patent JP-H0916511-A (JP)
Title: Conversion system for cpu bus and local bus
Inventor: NAGAE AKITO
IPC: G06F13/36
Filed: 1995-07-04
Abstract: PROBLEM TO BE SOLVED: To make CPU controller gate array size compact by converting a CPU interface signal into the one for VL bus by sharing address data with a CPU bus and a local bus. SOLUTION: A common bus 11 is formed by sharing with the CPU bus and the VL bus, and sharing the address data A31-03, an MI0# signal, a DC# signal and a WR# signal with the CPU bus and the VL bus. The common bus 11 is used in the transfer of an address 31-03 and every kind of signal, such as the MI0# signal, the DC# signal and the WR# signal among a CPU 1, an ISA controller 15 and a VGA controller 23. The number of pins of a CPU control gate array 5 is reduced and the chip area of the CPU control gate array 5 is reduced by sharing the addres bus (A31-03) and the signals of M/IO#, W/R# and D/C# with the VL bus in such way.
Patent JP-H06157466-A (JP)
Title: Method of preparing d- and l- and d,l-1,2,3,4-tetrahydro- isoquinoline-3-carboxylic acids
Inventor: BUORUFUGANGU MARUTEIN
IPC: C07D217/26
Filed: 1993-07-08
Abstract: PURPOSE: To produce a novel D- and L- and D,L-1,2,3,4-tetra-hydroisoquinoline-3- carboxylic acid.  
     CONSTITUTION: The process comprises cyclization of phenylalanine alkyl ester with a formaldehyde in a trifluoroacetic acid to produce a corresponding 1,2,3,4- tetrahydro-isoquinoline-3-carboxylic acid ester, and then hydrolyzing of the latter compound to obtain the corresponding 1,2,3,4-tetrahydroisoquinoline-3- carboxylic acid. 
     COPYRIGHT: (C)1994,JPO
Patent JP-H1019224-A (JP)
Title: Method for supplying waste to incinerator and air seal device
Inventor: HAZAMA KEIZO
IPC: F23G5/44
Filed: 1996-06-28
Abstract: PROBLEM TO BE SOLVED: To provide a method for supplying waste to an incinerator and an air seal device, wherein the air seal device is applied to a fluidized bed waste incinerator for making a waste supply amount uniform thus making the thermal load of the incinerator uniform and stabilizing the combustion. SOLUTION: In an air sealing device 11, a chute 12 is provided for temporarily stacking a waste 6 on the front end of a vane 3 along a lateral side of a rotary impeller 2 at an upstream side of a sealing member 5. The chute 12 is provided with an inclined portion 13 having an inclination angle of 50 to 60 deg. so as to make the waste stacked on the inclined portion 13 constantly slide down. A waste supply line 14 may be disposed right above the chute 12 or the waste may be fed to the chute 12 by way of a guide.  Due to such a construction, the waste in the chute 12 is moved toward the impeller 2 along the inclined portion 13 of the chute 12 and stacked on the impeller 2 and each time the impeller is rotated, a uniform amount of waste is constantly scraped off and fed to an incinerator so that a combustion can be carried out while stabilizing a gas temperature and a CO concentration at an exhaust opening.
Patent JP-S6231745-A (JP)
Title: Accumulator back pressure control device in multistage automatic speed change gear
Inventor: SUMIYA KOJI
IPC: F16H63/02
Filed: 1985-07-31
Abstract: PURPOSE:To reduce shocks upon gear shift, by providing a second accumulator control valve which is controlled by hydraulic pressure fed to a specified frictionally engaging component, to control the back pressure of an accumulator. CONSTITUTION:A second accumulator control valve 70 comprises line pressure ports l1, l2 a pressure adjusting port u1, a feed back pressure port u3, an upper oil chamber G3 and a lower oil chamber j2. Further, a first accumulator control valve 57 comprises an input port u2 communicated with the pressure adjusting port u1, an output port v1 communicated with back pressure chambers 59, 60, 61 in a B0 accumulator B0A, a C2 clutch accumulator C2 A and a B2 accumulator B2A, and a control oil chamber (r) into which a throttle pressure is fed. Further, the upper oil chamber G3 is communicated with an O/D direct clutch C0 and a brake B2.
Patent JP-H0831431-A (JP)
Title: Manufacture of lithium negative electrode for thermal cell
Inventor: HATANAKA TAKESHI
IPC: H01M6/36
Filed: 1994-07-21
Abstract: PURPOSE:To prevent the nitriding of lithium, and to manufacture the lithium negative electrode for thermal cell by melting lithium for impregnation in a molding made of iron powder under the inert gas atmosphere, in which each inclusion quantity of oxygen, moisture and carbon dioxide is regulated. CONSTITUTION:Spongy iron powder is evenly distributed on a circular metal- lithium sheet 1, and pressurized for molding so as to form an iron molding 2. This iron powder molding 2 is housed in a metal cup 3 so that the lithium sheet 1 is arranged inside, and the top surface of the molding 2 and the lower surface of the metal cup 3 are pinched by hot plates 4 heated at about 550 deg.C, and the lithium sheet 1 is melted for impregnation between a clearance in the iron powder molding 2 so as to form a negative electrode 5. As the atmospheric gas, the inert gas (argon gas or the like), in which oxygen and moisture are included at 2ppm or less and carbon dioxide at 1-10% is included, is used. Nitriding of lithium is thereby prevented, and the lithium negative electrode 5 for thermal cell is obtained.
Patent JP-H071483-A (JP)
Title: Manufacture of plastic film molded form
Inventor: KAWAGUCHI HIROSHI
IPC: B29C41/18
Filed: 1993-06-15
Abstract: PURPOSE:To provide a method for manufacturing a plastic film molded form in which a thickness of an unnecessary part to be later removed when the form is manufactured by a slush molding method can be reduced, and decreases in physical properties of the thin part due to half-baking can be prevented. CONSTITUTION:When a slush mold 20 having mold surfaces of a product molding surface 22 and an unnecessary part molding surface 24 is heated and thermoplastic powder 50 is brought into contact with the surfaces to adhere the powder to the surfaces in a layer state, a heating amount of the surface 24 is reduced smaller than that of the surface 22. Thereafter, the powder which is not adhered to the surfaces is discharged from the mold 20, the powder adhered to the surfaces 22, 24 is further heated to form a melted plastic film. Then, the film is cooled to form a plastic film molded form on the surface, and removed from the molds.
Patent JP-H0517186-A (JP)
Title: Cement admixture
Inventor: YAMATO FUJIO
IPC: C04B24/30
Filed: 1991-07-10
Abstract: PURPOSE:To obtain an admixture useful as a water-reducing agent and E slump preventive agent of a cement composition by using a neutralized cocondensate of a specific naphthalenesulfonic acid formaldehyde condensate with a specified phenolic compound as a component. CONSTITUTION:A cement admixture consisting essentially of a neutralized cocondensate of a condensate (prepolymer) of naphthalenesulfonic acid and formaldehyde having 3000-130000 average molecular weight with (A) a phenolic compound expressed by the formula. In the formula, R denotes H or 1-3C straight-chain or branched chain alkyl group; X denotes H or sulfone group. When the average molecular weight of the aforementioned prepolymer is <=3000, the condensation reaction of the phenolic compound (A) is remarkably rapid. Thereby, the amounts of a high condensate of the phenolic compound (A) with formaldehyde in the condensate and a low condensate of the naphthalenesulfonic acid with formaldehyde are increased and the molecular weight distribution becomes broad and dispersibility is deteriorated. When the average molecular weight is >=13000, dispersibility of the resultant cocondensate and slump properties are deteriorated.
Patent JP-H0336450-A (JP)
Title: Air conditioner
Inventor: SATO TAKESHI
IPC: F25B13/00
Filed: 1989-06-30
Abstract: PURPOSE:To prevent an excess or short in heating the refrigerant for achieving the safety and stable operation by a method wherein the heating rate of a refrigerant heater is controlled based on a comparison between the detected refrigerant temperature and the set value so as to increase or decrease it, and when the change quantity of the detected temperature exceeds a certain value, the control of increase or decrease in the heating rate is prohibited. CONSTITUTION:In the beginning of heating operation, a controller 20 gradually opens a proportional valve 11, and increases the heating rate of a refrigerant heater 9 toward the target value corresponding to the load. Simultaneously, the temperature of the refrigerant flowing out of the refrigerant heater 9 is detected by a refrigerant temperature sensor 12. When the detected temperature exceeds the upper set value that is the release starting point, the valve lift of the proportional valve 11 is decreased to reduce the heating rate of the refrigerant heater 9. When the detected temperature drops below the release starting point, the present heating rate of the refrigerant heater 9 is maintained. When the detected temperature falls to the lower set value that is the release reset point, the heating rate is again increased. When the heating rate reaches the target value, the present status is maintained.
Patent JP-S5870649-A (JP)
Title: Diversity reception system
Inventor: TORII TAKESHI
IPC: H04B7/10
Filed: 1981-10-22
Abstract: PURPOSE:To obtain antenna outputs with less number of antennas having same effect as the provision of a lot of antennas with different directivity, by connecting a plurality of phase shifters synthesizing outputs of a plurality of antennas each having a different phase between a plurality of antennas and antenna switching devices to make each phase difference different. CONSTITUTION:Phase shifters 3-5 are provided between antennas 1, 2 and an antenna switching device 6. The phase shifters 3-5 are constituted with cables of different length; l for terminals (b), (c) and (d) at the antenna 2, and l+lambda/2, l+lambda/4 at the antenna 1, respectively. A drive circuit 15 drives the antenna switching device 6 based on the output of an electric field level detector 11 and a multi-path distortion detector 12.
Patent JP-H0218576-A (JP)
Title: Copying machine
Inventor: IWAO SOICHI
IPC: G03G15/00
Filed: 1988-07-06
Abstract: PURPOSE:To speed up copying operation by providing a normal mode wherein the copying operation is performed under optionally set copying conditions after the electrostatic charging state of a photosensitive drum is stabilized and a standard copying mode wherein the copying operation is performed immediately under standard copying conditions. CONSTITUTION:When plural-sheet continuous copying operation is carried out under optionally set copying conditions, the operation is performed in the normal mode. Namely, a photosensitive drum 6 idles specific times with a print switch to repeat electrostatic charging and erasing operation until the electrostatic charging state becomes stable and then the copying operation is started to take a copy of uniform picture quality. Under the standard copying conditions wherein only one copy is taken, on the other hand, the copy is obtained speedily by starting the copying operation in the standard mode, i.e. without making the drum 6 idle. Consequently, only one copy is taken, so the uniformity of the picture quality is not important.
Patent JP-2000236358-A (JP)
Title: Device and system for transferring data and recording medium
Inventor: UENO TAKAFUMI
IPC: G06F13/38
Filed: 1999-06-16
Abstract: PROBLEM TO BE SOLVED: To provide a device and a system for transferring data with which the interruption of data to be continuously inputted/outputted can be prevented even when the issue time interval of bus access permission is irregular. SOLUTION: The omission of data can be prevented by setting capacity CAPW of a write buffer memory 4 so as to satisfy the condition of CAPW >=TW×T1 when the input rate of continuously inputted data is defined as T1 and the estimated maximum value of the issue time interval of bus access permission issued by a CPU 1 is defined as TW. Namely, a data transfer device, with which the interruption of data to be continuously inputted/outputted can be suppressed even when the issue time interval of bus access permission is irregular, can be provided.
Patent JP-H0221547-A (JP)
Title: Liquid metal ion source
Inventor: ARISAWA TAKESHI
IPC: H01J37/317
Filed: 1988-07-08
Abstract: PURPOSE:To detect the needle position on which the central axis of a needle is coincident with the central axis of the aperture of a pull-out electrode in high sensitivity and high accuracy by detecting the minimum point of the detected and amplified variation component of the beam current generated by the micro vibration of the tip portion of the needle in a constant frequency. CONSTITUTION:When an AC voltage is applied to an element electrode 13 from an oscillator 19 through a coupler 20, a piezoelectric ceramic 14 is vibrated (vibration frequency [f]) to generate micro vibration on the tip of the needle. In the voltage signal of the beam current from the needle 1 to the pull-out electrode 8 outputted from the monitor terminals of a source 10, a variation component of the frequency [f] is contained, because the relative position of the needle 1 to the pull-out electrode 8 is varied periodically with the frequency [f]. This signal of frequency [f] is passed through a band-pass filter 16, amplified with an amplifier 17 and outputted as an amplitude value Vm from an amplitude detector 18. As the Vm takes the minimum value at a point x0 on which the central axis of the needle 1 is coincident with the central axis of the aperture of the pull-out electrode 8, the alignment can be carried out precisely.
Patent JP-H0818265-A (JP)
Title: Method of shielding electromagnetic wave, etc. on printed circuit board and shield cover therefor
Inventor: II HIDEHIRO
IPC: H05K9/00
Filed: 1994-06-29
Abstract: PURPOSE: To make it possible to mount the body of a metal shielding cover on a printed circuit board with a single motion and further connect the grounding contact on the body of the metal shielding cover to the grounding land on the printed circuit board. CONSTITUTION: Stoppers 7, 8 for securing the body 1 of a metal shielding cover on a printed circuit board A are formed on the body 1 of the metal shielding cover. Further, a grounding contact 13 is formed for connecting the body 1 of the metal shielding cover with the grounding land B on the printed circuit board A.
Patent JP-H05343609-A (JP)
Title: Semiconductor integrated circuit device
Inventor: WATANABE TOKUJIRO
IPC: H01L25/07
Filed: 1992-06-04
Abstract: PURPOSE:To eliminate restriction on signal transfer between two chips and restriction on bonding wires. CONSTITUTION:On one chip 3', another chip 4' is bonded. After the chip 3' is mounted on an island 5 of a lead frame, the chip 3' is connected with the chip 4', and the chips 3', 4' are connected with inner leads 7 of a lead frame, by using bonding wires 6.
Patent JP-S6147612-A (JP)
Title: Transformer bobbin
Inventor: HIGUCHI ETSUO
IPC: H01F27/28
Filed: 1984-08-15
Abstract: PURPOSE:To prevent disconnection of lead wire of coil wound to terminal pins by inserting terminal pins and dowels to the hole provided to the printed circuit board and fixing them by soldering to copper foil provided to the printed circuit board when the dowel integrally formed to the bobbin is plated by gold and a transformer is provided to the printed circuit board. CONSTITUTION:A plurality of terminal pins 6 are embedded to the one end surface of coil bobbin 4. The lead wire of coil wound to the bobbin is connected to the terminal pins 6. The dowels 13 consisting of nylon, PSS, fenol, etc. are formed integrally with bobbin 4 at the four surfaces of the same end surface of the terminal pins 6 of the bobbin 4. The circumference of dowel 13 is provided with metal plating 14 such as copper or chromium. The transformer comprising bobbin 4 can be mounted to the printed circuit board by the following procedures that the terminal pins 6 embedding to the bobbin 4 are inserted into a hole 10 provided to the board, the dowels 13 are inserted to the hole 15 of board 9 and the plated dowels 13 and terminal pins 6 are fixed to the copper foil 11 with the solder 12 at the opposite side of the board.