baber/WOPTO huggingface dataset:
Patent JP-H01267603-A (JP)
Title: Optical fiber coupler packaging body and production thereof
Inventor: HANABUSA HIROAKI
IPC: G02B6/287
Filed: 1988-04-20
Abstract: PURPOSE:To obtain the small-sized multifiber optical fiber coupler for the fiber by packaging plural pieces of the optical fiber couplers each formed by welding and stretching the side faces of the bare fibers exposed after the coverings of two pieces of the optical fibers are removed in parallel to a sheet of substrate. CONSTITUTION:The bare fibers 103, 104 exposed after the coverings of two pieces of the optical fibers are removed are welded and stretched in the process for producing the optical fiber coupler by fixing plural pieces of the optical fiber couplers onto a sheet of the substrate 100. Plural pieces of the optical fiber couplers are packaged in parallel to a sheet of the substrate 100 by fixing the optical fiber couplers which are produced one after another to the substrate 100 while moving the position of the substrate 100 successively in parallel at the time of fixing the optical fiber couplers adjusted to attain required branch characteristics to the substrate. Two sets of plural pieces of the optical fibers which are arrayed in parallel are superposed above and below and the bare fibers from which the coverings are removed are welded and stretched between two pieces of the upper and lower optical fibers, by which plural pieces of the optical fiber couplers are simultaneously produced and are collectively fixed and packaged to a sheet of the substrate. The packaging of many pieces of the optical fiber couplers to a high density is thereby enabled and the size of the branching parts is reduced.
Patent JP-S5618438-A (JP)
Title: Inspection method for soldered portion of semiconductor element
Inventor: OOKATA MITSUO
IPC: H01L21/66
Filed: 1979-07-24
Abstract: PURPOSE:To simply select the element having a defect at the soldered portion by a method wherein the semiconductor element, with a metallic supporting plate soldered on a P-N junction possessing semiconductor substrate, is retained in a high- pressure atmosphere for a prescribed hours and then an electric characteristic of the substrate is measured. CONSTITUTION:On one surface of the semiconductor substrate 1, having a P-N junction such as a diode for electric power etc. and a bevelling and a stabilization processing are performed on the end-surface, an Mo metallic supporting plate 2 is soldered with the solder 3 as an anode electrode, on the other surface an Al evaporation film 4 is provided and the element 5 is formed as a cathode electrode. The above element 5 is placed in a high-pressure tank in which silicon oil is filled and, for instance, it is held in an approximate pressure of 100kg/cm<2> for about 10 minutes. Hence, in the case of an element having a cavitylike defect at the soldered section 3, the hollow part of a defect will be crushed by a high pressure and the corresponding semiconductor crystal will be broken, thereby causing to decline electric characteristics such as a reverse tension resistance and the like and enabling to easily select and remove the defective element by measurement.
Patent JP-S61253320-A (JP)
Title: Vacuum hardening furnace
Inventor: HATTORI HISASHI
IPC: C21D1/18
Filed: 1985-05-07
Abstract: PURPOSE:To freely adjust the cooling rate of articles for a heat treatment and to execute desired vacuum hardening by forming a fluidized layer to a cooling chamber provided in the lower part of the furnace and sinking the articles for treatment from an upper heating chamber into the fluidized layer. CONSTITUTION:The upper side of the furnace body is used as the heating cham ber 1a and the lower side as the cooling chamber 1b. A bucket 5 contg. the articles for treatment is positioned in the chamber 1a and after the inside of the body 1 is evacuated, the articles for treatment are heated by a heating element 4 to a hardening temp. Gaseous nitrogen or the like is then supplied to the bottom of the chamber 1b to fluidized the flowing particles such as alumina particles 12 in the chamber 1b to form the fluidize layer. A lifting table 6 imposed on the particles 13 is sunk in the fluidized layer by the own weights of the bucket 5, the articles for treatment and a perforated ceramic plate 7 when the particles flow. The articles for treatment are uniformly and quickly cooled by the fluidized layer, by which the articles are hardened.
Patent JP-H01268068-A (JP)
Title: Junction type field-effect transistor and video camera using same
Inventor: KAGAMI JUNICHIRO
IPC: H04N5/335
Filed: 1988-04-20
Abstract: PURPOSE:To obtain a junction type field-effect transistor characterized by low noises, high resistance against electrostatic breakdown, high performance and high reliability, by forming impurity regions whose concentration is higher than that in a conductive channel region in a partial or whole region in the vicinity directly beneath a source region or a drain region. CONSTITUTION:In a junction type field effect transistor, a source region 9, a drain region 10 and a surface gate region 4 are provided at the surface of a semiconductor layer 2, and semiconductor substrates 1 and 6 are used as substrate gates. In this transistor, impurity regions 7 whose concentration is higher than that of a conductive channel region 5 are formed in the partial or entire region in the vicinity directly beneath the source region 9 or the drain region 10. For example, the N-type epitaxial layer 2 is formed on the P<+> type Si substrate 1 through the P<-> layer 6. The P<+> region 4 is formed at a part of the surface of the epitaxial layer 2 surrounded by a P<+> isolation layer 3 and made to be a surface gate. The high concentration N<+> regions 9 and 10 for a source and a drain contact are formed with said surface gate in between. The N<+> high concentration regions 4 are formed at a part of the P<->layer 6 which is to become a substrate gate region directly; beneath the N<+> regions 9 and 10.
Patent JP-H06310617-A (JP)
Title: Sub-mount for semiconductor laser element
Inventor: KADOWAKI TOMOKO
IPC: H01L23/12
Filed: 1993-04-22
Abstract: PURPOSE:To provide a sub-mount that, without causing an electrical short circuit, can die-bond a semiconductor laser element with high precision in position. CONSTITUTION:Respective laser bonding parts 2a1-2a4 of a sub-mount 2 are formed into projecting sections, or a trapezoid shape in its cross section, wherein the width at the top face is smaller than that at a laser-bonding-face, and on the top faces of the projecting sections and the top end parts of inclined faces that follow them, electrode patterns 16a-16d and solders 17a-17d are formed in this order.
Patent JP-H03295196-A (JP)
Title: Lighting control device for show case with cold/hot switching
Inventor: MATSUZAWA SHIGEO
IPC: H05B41/23
Filed: 1990-04-10
Abstract: PURPOSE:To secure the optimum condition of a discharge lamp in a show case with cold-hot switching by controlling the current to the rated current when the temperature is set to the cold storage temperature by a transfer switch, and controlling the current to the second current smaller than the rated current when the temperature is set to the warm storage temperature by the transfer switch. CONSTITUTION:When the temperature is set to the cold storage temperature by a transfer switch S, a cold storage side contact (b) is closed to energize a relay 57, the first contacts 53A, 55A are closed, thus the impedance of the primary side of a ballast 52 is made A, and the impedance of the secondary side is made A+C. The current fed to a discharge lamp 11 is controlled to the rated current. When the temperature is set to the warm storage temperature by the transfer switch S, a warm storage side contact (a) is closed to de-energize the relay 57, the second contacts 53B, 55B are closed, the impedance of the primary side of the ballast 52 is made A+B, and the impedance of the secondary side is made A+B+C+D. The secondary side current is decreased, and the current fed to the discharge lamp 1 is controlled to the second current smaller than the rated current.
Patent JP-H04326523-A (JP)
Title: Manufacture of semiconductor device
Inventor: SAWANO TOMONORI
IPC: H01L29/732
Filed: 1991-04-26
Abstract: PURPOSE:To surely connect a high concentration P-type layer and a base region, by a method wherein, after polysilicon is deposited on the epitaxial layer surface, a (111) face is exposed by previously etching the epitaxial layer surface before undoped silicon is selectively etched. CONSTITUTION:After a high concentration N-type buried layer 2 is formed on the surface of a P-type silicon substrate 1 inclined at 4 deg to a (111) face, an N-type epitaxial layer is grown. After a field oxide film 5 for dielectric isolation is formed, the surface of the N-type epitaxial layer is etched by using alkaline aqueous solution like KOH, and the (111) face is exposed. After that an element is formed. Thereby a high concentration P-type diffusion layer 15 turning to an outer base all over the emitter periphery is surely connected with a base 17.
Patent JP-H0662077-A (JP)
Title: Telegraphic message relieving method for data communication system
Inventor: YAMASHITA HIROYUKI
IPC: G06F13/00
Filed: 1991-04-02
Abstract: PURPOSE:To prevent a received telegraphic message from being erased by the temporary fault of a host processor by releasing the transferred received telegraphic message in the storage part of a communication control equipment after a release notice is received from the host processor. CONSTITUTION:A communication control equipment 5 stores the telegraphic message received from a terminal 3 in a storage part 65 and transfers the received telegraphic message to a host processor 4 later. The device 4 stores the transferred received telegraphic message in a non-volatile storage device 64 and reports the release of the transferred received telegraphic message through inter-device interface,74 and 75 to the equipment 5 later. After the release notice is received, the equipment 5 releases the received telegraphic message transferred to the device 4. Thus, since the transferred received telegraphic message in the storage part 65 is released after the equipment 5 receives the release notice from the device 4, the received telegraphic message can be prevented from being erased even when any temporary fault is generated at the device 4, and service stop time can be shortened.
Patent JP-S57211457-A (JP)
Title: Edge cutting machine for welding
Inventor: YAMADA KAZUO
IPC: B23K33/00
Filed: 1981-06-23
Abstract: PURPOSE:To accurately perform edge-preparation by concentrically arranging a shade type cutter and a feed roller before and after a cutter head and enabling the cutter to follow the profile of a model while transferring the feed roller along the model circumferential surface in response to the action of a push roller. CONSTITUTION:A model 19 is attached on a support 18 fitting to a workpiece 11 to be processed, and a feed roller 20 is pushed onto the outer circumferential surface of the model 19 and a push roller 30 onto the inner circumferential surface by means of an adjusting plunger 31. The edge of the workpiece 11 to be processed is processed, following the profile of the model 19 by making a shade type cutter 12 to touch the edge of the workpiece 11 to be processed in front of the cutter head 7 any by operating motors 15, 21.
Patent JP-H03294265-A (JP)
Title: Phthalimide derivative
Inventor: KAWAMURA KIMIHIDE
IPC: C09B29/036
Filed: 1990-04-13
Abstract: NEW MATERIAL:A phthalimide derivative expressed by formula I [X is H, one or more substituent groups such as halogen, lower alkyl, lower alkoxy, nitro, (substituted) amino or alkoxycarbonyl group; Y is H, one or more halogen, lower alkyl, lower alkoxy, nitro, alkoxycarbonyl, carboxyl, sulfonamide or sulfonic acid group). EXAMPLE:A compound expressed by formula II. USE:Useful as an intermediate for raw material such as dye or pigment. When the compound expressed by formula I is diazotized and subjected to coupling with a proper coupling component, a pigment having excellent weather resis tance and solvent resistance, etc., is obtained. PREPARATION:An aniline derivative (e.g. p-chloroaniline) is subjected to conden sation through dehydration with a N-hydroxymethylphthalimide derivative, e.g. in concentrated sulfuric acid to provide the compound expressed by formula I.
Patent JP-S58212921-A (JP)
Title: Molding method of plastic hollow product
Inventor: TAKAHASHI SHINICHI
IPC: B29C67/00
Filed: 1982-06-04
Abstract: PURPOSE:To obtain the titled molded product having a smooth inner surface and a precise inside shape by a method wherein a core mold is formed by a mixture of thermally melting material and filler compounded in a specified weight ratio, a plastic product is provided around said core mold and then said core mold is softened and then removed. CONSTITUTION:Thermally melting material (such as paraffin, wax, etc.) and filler (such as sand, cement, etc.) are mixed at a weight ratio 20:80-70:30, a molded product 3 of FRP etc. is provided on the outer circumference, then, to take an example, electric current is applied to a band heater 2 that is penetrated previously through the axis to melt the circumference of the heater 2 and, further, hot air is blown from a nozzle 4 and the core mold 1 is softened and removed from the inner part of the molded piece to obtain an intended hollow molded product.
Patent JP-S60240815-A (JP)
Title: Lubricating oil guiding device in two-cycle engine
Inventor: KIMURA SATOO
IPC: F01M3/00
Filed: 1984-05-16
Abstract: PURPOSE:To introduce a lubricating oil to a connecting part between a crank web and a connecting rod accurately by forming a lip wall part which extends into a gap between the skirt part of a piston and said crank web, continuously with the lower wall surface of an oil feeding port. CONSTITUTION:When a piston 6 rises, a lubricating oil, together with an air fuel mixture, is fed into a crank chamber 2 from a reed valve 9 through an intake port 10. Then, the lubricating oil collides with the wall surface of the intake port 10, partly turning into a wall surface flow, which flows from a lower wall surface 10a and along a lip wall part which is continuously connected to the wall surface 10a, and is introduced to a gap between both opposite crank webs 4. Lubricating oil which flows into the crank chamber 2 in a mist condition is also introduced to the central part of the crank chamber 2, due to the lip wall part 12, without being splashed by the peripheral surface of a web 4, etc., colliding with a connecting rod 7. Accordingly, a connecting part between the web 4 and the connecting rod 7, i.e., the bearing part around a crank pin 5, and the sliding surfaces of the larger end part 7a of the connecting rod 7 and the web 4, can be lubricated.
Patent JP-S58211728-A (JP)
Title: Optical fiber coupler
Inventor: YAMAMOTO KAZUHIKO
IPC: G02B6/42
Filed: 1982-06-04
Abstract: PURPOSE:To realize low cost and uniform quality and to increase optical-axis consistency and coupling efficiency between a fiber and a photoelectric converting element, by forming a spherical lens made of a resin to an optical connector in one body, and increasing the optical coupling efficiency. CONSTITUTION:An optical fiber coupler has a fixed connector 7 which has the spherical lens 8 at the top of the optical fiber in one body. The polished optical fiber is inserted into this fixed connector 7 and the optical fiber and photoelectric converting element 6 are bonded together fixedly with a resin through both connectors 4 and 7. To increase the coupling efficiency between the optical fiber and photoelectric converting element 6, the radius R of the spherical part of the spherical lens 8 is 0.5-1 time as great as the diameter D of the optical fiber D.
Patent JP-H11292496-A (JP)
Title: Emergency descending device for high lift work vehicle
Inventor: INAMOTO AKIRA
IPC: B66F9/22
Filed: 1998-04-08
Abstract: PROBLEM TO BE SOLVED: To provided an emergency descending device for a high lift work vehicle not making any trouble caused by erroneous setting of relief pressure of a counter balance valve and capable of safely carrying out operation for hydraulic cylinder contraction when an engine makes an emergency stop. SOLUTION: A counter balance valve 30 installed on a hydraulic cylinder 6 and connected to a bottom chamber (a) of the hydraulic cylinder 6 is provided. First stop valves 31, 40 are provided on the counter balance valve 30 in series. A line 36 for communicating a line 22 between a control valve 21 of the hydraulic cylinder 6 and the counter balance valve 30 with an oil tank 27 is provided on the outside of a rotational movement track of a retractable boom. A second stop valve 35 is provided on the line 36.
Patent JP-S5721634-A (JP)
Title: Cover structure for preventing inflow of rain water for manhole, etc.
Inventor: URAGAMI TEIJI
IPC: E02D29/14
Filed: 1980-07-14
Abstract: PURPOSE: To prevent the inflow of large amounts of rain water and soil and sand into the cover of a manhole by a method in which a float chamber into which rain water can flow is provided below the cover of a monhole, a float valve is housed in the chamber, a closable rain water-inducting port is provided in the chamber, and a filter is provided to the rain water-inducting port of the float chamber.  
     CONSTITUTION: A float chamber 4 is provided below the through hole 2 of the cover 1 of a manhole, etc., and a float valve 3 is housed in the chamber 4. In case where there is no inflow of rain water, the float valve 3 is suck in such a way as to form a space between the upside of the float valve 3 and the wall 8 of inflow path and also an air pathway by a rain water-inducting port 9 and a through hole 2. On the other hand, in case where rain water comes in through the through hole 2 and the inducting port 9, the rain water is introduced in the float chamber 4 through a filter 13 as shown by arrows and then discharged through a drain port 5. When the inflow of rain water is larger than the amount of drain water from the drain port 5, the level of water inside the chamber 4 rises, the float valve 3 floats up, the valve 6 closes the drain port 5, and the float valve 3 closes the inducting port 9. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-H06286436-A (JP)
Title: Vehicle controller
Inventor: IZUMI TOMOMI
IPC: B60K17/346
Filed: 1993-03-30
Abstract: PURPOSE:To secure travel stability or reduce tire load at the time of tire pneumatic pressure trouble (pneumatic pressure lowering and a puncture). CONSTITUTION:In the case of a four wheel drive vehicle which can be switched into 2WD-4WD, the three differential gears 9-11 of the center, the front and the rear are provided, and a controller 40 conducts the differential limit control of the three differential gears 9-11 in various modes on the basis of signals from wheel speed sensors 25-28, a throttle opening sensor 16, speed shift step switches 17, 18, a clutch switch 19 and a mode setting switch 20. The controller 40 executes tire pneumatic pressure judgement control on the basis of signals from the wheel speed sensors 25-28, a brake switch 41, a steering angle sensor 42 and an initial setting switch 43, and when tire pneumatic pressure lowering is judged, at least the front differential gear 10 and the rear differential gear 11 are switched into a lock state (or a lock release state).
Patent JP-S5524424-A (JP)
Title: Forming device of pressure-reduced epitaxial layer
Inventor: ENDOU YOSHIHIDE
IPC: C30B25/14
Filed: 1978-08-09
Abstract: PURPOSE: To increase the velocity of epitaxial growth on substrate by extending a nozzle of multiple-tube construction to the neighborhood of a substrate to treat, allowing a reaction gas to flow in the inside tube and a fluid to cool down the reation gas to flow in the outside tube.  
     CONSTITUTION: A nozzle 4 is of multiple-tube construction comprising an inside tube 4a and an outside tube 4b; the outside tube is about 10 mm longer and inserted in a reaction tube 1 in parallel with its axis. After heating to epitaxial growth temperature the reaction tube is exhausted internally, H 2  gas is introduced 6 therein as kept at a given pressure, then after the nozzle is colled down SiH 4  is injected 5 as kept at a given pressure and introduced near substrate 3. During the epitaxial growth, SiH 4  is colled down by carrier H 2  released successively and introduced near the substrate through nozzle 4 as controlled for themal decomposition on its way from inlet 5 to the substrate 3. An efficiency of the reaction gas for thermal decomposition is therefore high on the substrate, and the epitaxial growth is accelerated so fast to leave an epitaxial layer of excellent crystallinity. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S5322466-A (JP)
Title: Electronic watch
Inventor: KOMAKI SHIYOUJIROU
IPC: G04F10/00
Filed: 1976-08-13
Abstract: PURPOSE:To enlarge the size of display numbers and accurately perform time measurement without erroneously recognizing lapse time with an overflow, etc. by displaying the counting contents of each counter forming time counter through subsequent switching.
Patent JP-S5523665-A (JP)
Title: Facsimile unit
Inventor: KANEDA MASARU
IPC: H04N1/409
Filed: 1978-08-08
Abstract: PURPOSE: To enable to demodulate the signal into the video signal accurately prior to the modulation, by transmitting the pulse TMIN of the maximum video frequency of video signal after being modulated in about twice pulse width at the transmission side, and returning the pulse width to the original width at the demodulation side of reception.  
     CONSTITUTION: The pulse generation circuit 14 is operated at the leading of the video signal 4, and the pulse signal 15, pulse width T<2TMIN, is outputted. By taking the logical sum 16 for the signals 4 and 15, the sum is the minimum pulse width correction picture signal 17 and correction is made by the signal in minimum width. The signal 17 is made tri-state with the binary to ternary circuit 1 to output the signal 18, and the signal 19 equivalent to the lowered frequency at LPF 2 is transmitted via the modulator 3. Thus, the amplitude of minimum width can sufficiently be obtained even on the telephone line. At the reception, the tri-state analog signal 23 is outputted as the binary signal 24 at the ternary to binary circuit 9 via the demodulator 7 and LPF 8, and the signal 25 is obtained with wave shape at the binary circuit 10. The pulse generation circuit 20 is operated at the leading of the signal 25 to form the pulse 26 of TMIN. The signal 27 delaying 21 the signal 25 and the signal 26 are taken into logical product 22 to restore the pulse width. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-2000282189-A (JP)
Title: Austenitic steel excellent in high cycle fatigue characteristic
Inventor: HARUNA YASUSHI
IPC: C22C38/58
Filed: 1999-04-02
Abstract: PROBLEM TO BE SOLVED: To provide an austenitic steel excellent in high cycle fatigue characteristics which exhibits excellent high cycle fatigue life characteristics and jointly has excellent machinability. SOLUTION: This steel is the one having a compsn. contg., by weight, 0.06 to 0.6% C, 0.2 to 1.0% Si, 1.5 to 24.0% Mn, 0.05 to 0.40% S, 3.0 to 15.0% Ni and 5.0 to 19.0% Cr, satisfying Mn/S >=4, and in which the aspect ratio (length/ thickness) of MnS formed in the steel is controlled to >=4. Moreover, the steel is added with one or two kinds selected from among 0.5 to 3.0% Mo, 1.0 to 2.0% V, 0.10 to 0.40% Nb and 0.05 to 0.20% N.