baber/WOPTO huggingface dataset:
Patent JP-S61100988-A (JP)
Title: Semiconductor laser
Inventor: FURUSE TAKAO
IPC: H01S5/00
Filed: 1984-10-22
Abstract: PURPOSE:To maintain a stable oscillating mode by enabling operation at low currents while shaping wide index waveguide structure by arranging a current constriction function and an index waveguide function so as to hold an epitaxial layer as an active layer from upper and lower sections and shaping a narrow current path. CONSTITUTION:Structure in which an N type Al0.35Ga0.65As layer 7 having a high refractive index is held by an N type Al0.4Ga0.6As layer 8 having a refractive index lower than the layer 7 is formed while the layer 7 is disposed adjoined to an Al0.12Ga0.88As layer 5 as an active layer, thus shaping an index waveguide function. An N type GaAs layer 3 as a current constriction layer is arranged adjoined to the lower side of the active layer 5, thus forming a narrow current path. The current constriction function and the index waveguide function are separated and optimum values can be selected independently by changing each groove width, thus easily optimizing element structure which has not been able to be realized in conventional laser structure.
Patent JP-2000050990-A (JP)
Title: Chair reclining system
Inventor: IRITANI YOSHIAKI
IPC: A47C1/032
Filed: 1998-08-05
Abstract: PROBLEM TO BE SOLVED: To secure a path of a sufficiently large width on each stage floor by providing a chair reclining device with a seat and a back so as to increase the inclination of the back without allowing the back to substantially move toward the rear side. SOLUTION: This chair fixed to a specific stage floor 1 with a supporting leg 2 is provided with the seat 4 and the back 5, both of which are connected to a tilting link 6 used as an arm rest in common. The tilting link 6 is hinge- connected to both end parts of a fixing link 9 positioned on a lower side through two mutually parallel connecting links 7 and 8. Then, the respective connecting links 7 and 8 are swung forward to respectively shift the upper end of the a front-side connecting link 7 obliquely upward and the upper end of the rear- side connecting link 8 obliquely downward and to advance-shift the tilting link 6 as a whole. As the result, the inclination can be increased without allowing the back 5 to move out.
Patent JP-H0389021-A (JP)
Title: Static pressure bearing
Inventor: SUGITA KAZUHIKO
IPC: B23Q1/34
Filed: 1989-08-30
Abstract: PURPOSE:To dispense with a hose for cooling oil eliminate the resistance of the hose and enable high speed movement by providing a cooling oil supply port for affording communication between a surface choke static pressure guide surface and a cooling jacket oil path and a drain port for draining supplied oil on a square slide shaft. CONSTITUTION:A piezo-actuator 4 is inserted in a square slide shaft 1 through a cooling jacket 12 provided on the outer peripheral surface with a spiral oil path 13, and a surface choke static pressure surface 6 is formed between the square slide shaft 1 and a bearing metal 5. A cooling oil supply port 18 for affording communication between the surface choke static pressure surface 6 and oil path 13 and a cooling oil drain port 19 for draining oil supplied to the oil path 13 are provided. Even if the square slide shaft 1 slides axially, a portion of oil supplied to the surface choke static pressure guide surface 6 passes through the cooling oil supply port 18 to the oil path 13 to cool the piezo-actuator 4. The oil guided to the oil path 13 is returned to a tank 8 through the cooling oil drain port 19.
Patent JP-S6378602-A (JP)
Title: Circuit of preventing saturation of transistor
Inventor: NISHIZAWA AKIHITO
IPC: H03F1/34
Filed: 1986-09-22
Abstract: PURPOSE:To eliminate the increase of current consumption, the fluctuation of an output DC voltage, and the damage of a saturation prevention circuit, by applying the negative feedback of a current to be refilled to the collector of a transistor, the saturation of which should be prevented, to the base of a collector-grounded transistor, or a circuit system on the way, which supplies a signal to the base of the transistor. CONSTITUTION:An emitter-grounded transistor 13 supplies a voltage to the cathode of a diode 42 corresponding to an input signal being supplied to an input terminal 6. The voltage is added on the base of an emitter-grouned transistor 33 that is a second amplifier, and an output voltage corresponding to the input signal is supplied to the collector of the transistor 33. When the output potential becomes equal to the base potential of the transistor 33, a saturation preventing transistor 41' is operated, and the refilling of the current is performed to the collector of the transistor 33. In this way, the base potential of the transistor 33 is lowered by the share of voltage drop generated in a collector 11. Therefore, it is possible to set the voltage so that the voltage between the collector and the emitter of the transistor 33 is not lowered to OV, thereby, the transistor 33 can be prevented from being saturated.
Patent JP-H02107493-A (JP)
Title: Method and device for manufacturing cover, etc.
Inventor: PEETERU RAZAARU
IPC: B42C7/00
Filed: 1989-08-30
Abstract: PURPOSE: To obtain a large freedom in the case of arranging folding lines by forming at least one folding line by pressing one bending edge in a sheet adjacent to at least longitudinal edge of a hot-melt strip, thereby guaranteeing a good quality of a cover. CONSTITUTION: A press ram 25 is lowered, and a sheet 35 is urged down to a hot-melt strip 34 in a central area. When the sheet 35 is raised in an operating area of the ram 25, the strip 34 is raised from a part 10. Slide members 17, 20 are moved until bent webs 23, 24 projected from the members 17, 20 are existed at lower positions of folding lines formed in the sheet 25. After the members 17, 20 are arrived at final positions, the ram 25 is executed in a second pressing step, and hence it is again lowered. Since the applied pressure remarkably increases in a first pressing step, the folding lines are formed in the sheet 35 via the webs 23, 24.
Patent JP-H06167145-A (JP)
Title: Security key safekeeping device and crime prevention system based on its application
Inventor: YORIFUJI ARITAKA
IPC: G08B25/00
Filed: 1992-07-28
Abstract: PURPOSE:To attempt a centralized control of locking and unlocking and crime prevention by installing communication ports to a signal processing section of a plurality of key housing boxes which lock and unlock with an electronic card and connecting a common signal line for free access to a center device. CONSTITUTION:Every time when a electronic card is read and scanned and a key is taken out or returned, information about these related operations is transmitted to a center device from an individual key safekeeping device K by way of a shared signal line. Then, the center device 30 concentratedly controls the key safekeeping devices K. If something trouble happens in one of the device K, the device 30 gives an alarm and troubleshoots the case promptly. If it is necessary, an outside printer is installed to the device 30, thereby printing out information for the operation records. Moreover, it is acceptable to install a crime prevention system which is connected to a signal line L, thereby detecting the opening and closing of a window and giving an alarm for troubleshooting. This construction makes it possible to build up a communication network in conformity with a desired scope and control extended key safekeeping devices with a single center device by connecting its network to the shared communication line.
Patent JP-H0385041-A (JP)
Title: Bridge for csma/cd system
Inventor: SAKAMOTO HIDENORI
IPC: H04L12/40
Filed: 1989-08-28
Abstract: PURPOSE:To evade a delay due to data retransmission by sending a jam packet to a transmission line when a reception buffer is occupied. CONSTITUTION:When a reception buffer 5 of a bridge 1a is occupied, the bridge 1a cannot receive a frame and a jam frame transmission circuit 10 checks whether or not the data is to be bridged. When the destination address registered in the bridge 1a and the destination address of the received frame are coincident it is judged that the data is the data to be bridged, a jam packet is sent to a transmission line 2 to cause collision. When collision takes place in the transmission line 2, an end system ES 4a applies back-off according to the CSMA/CD medium access control system and sends the data again by the hardware. Thus, the delay due to the retransmission is evaded.
Patent JP-H1158449-A (JP)
Title: Resin seal molding die for semiconductor device
Inventor: MATSUMOTO JIRO
IPC: H01L21/56
Filed: 1997-08-19
Abstract: PROBLEM TO BE SOLVED: To provide a resin seal molding die for a semiconductor device in which resin flowed into upper and lower cavities is balanced and filled uniformly by forming a gate on a short side of the side face forming resin injection hole of the lower cavity in a molding die for resin sealing the semiconductor device. SOLUTION: In a molding die with upper and lower cavities used for molding a mold package for sealing a semiconductor device with resin, a protrusion 22 provided with the draft angle for a molded product is formed inside a short side central section of a lower cavity 21, and a gate 24 with a bottom face 24A rising toward the inner side is provided on the protrusion 22. Voids heretofore generated are not generated any more on the mold package by the arrangement.
Patent JP-H0274658-A (JP)
Title: Sheetlike fiber
Inventor: KOBA TOMOHITO
IPC: D04H3/04
Filed: 1988-09-07
Abstract: PURPOSE:To obtain the subject readily handleable fibers, capable of pulling out the fibers one by one without 'delay' with hardly any damage thereof under a uniform tension and useful as uniaxial fiber-reinforced thermoplastic resin prepreg sheets by bonding mutual adjacent fibers with a removable adhesive. CONSTITUTION:The objective fibers obtained by bundling, e.g., 200-3600 glass fibers of no twist having 5-25mum filament diameter, applying starch as an adhesive in an amount of 0.1-20wt.%, preferably 0.5-5wt.% based on the glass fibers and forming the resultant fibers into the shape of a sheet. The starch may be applied in producing sheetlike fibers. The above-mentioned adhesive is removed at a position where tension is applied to the fibers between a tension regulator and a take-off device after an impregnating step to afford uniaxial fiber-reinforced thermoplastic resin prepreg sheets.
Patent JP-H0670008-A (JP)
Title: Automatic testing machine for electronic exchange
Inventor: MATSUMURA JUNICHI
IPC: H04M3/22
Filed: 1992-08-21
Abstract: PURPOSE:To enable the test of a load approximated to the real operating state or the quantative test of overload. CONSTITUTION:The required items of data set to an electronic exchange 1 as the object of the test are incorporated as a data base and in the case of execution control based on this data base and execution order data describing the sequence, the test is executed while performing idle management corresponding to a state managing table. On the other hand, parallel processing is performed by a time share function using an execution queue, and the interval of call origination is set at a value generated by a function at the time of execution.
Patent JP-H0778220-A (JP)
Title: Bar code reader
Inventor: YOSHIHARA SATOSHI
IPC: G06K7/10
Filed: 1993-09-08
Abstract: PURPOSE:To expand the reading range of a bar code by forming images on plural corresponding photodetector strings by plural lenses with different focal distance. CONSTITUTION:Reflected light from the bar code is image-formed on the photodetector string 14 by the lens 11, and is also image-formed on the photodetector string 15 by the lens 12, and also, it is image-formed on the photodetector string 16 by the lens 13. In such a case, the focal distance of the lenses 11, 12, and 13 are set differently from each other. Therefore, the position of a bar code label image-formed sharply on the photodetector string is set in ranges of marks (A), (B), and (C), respectively. Therefore, the range of the bar code label where an image-forming means 8 can image-forms a sharp image, i.e., a readable range is the range in which the ranges of (A), (B), and (C) are sumed up. The range can be expanded by approximately three times compared with a conventional range.
Patent JP-H0383886-A (JP)
Title: Susceptor for pulling up single crystal
Inventor: NAKAYAMA KOICHI
IPC: C30B15/00
Filed: 1989-08-29
Abstract: PURPOSE:To lower amount radiating to the upper part of melted material and suppressing convection in the interior of the melted material and uniform oxygen concentration by dividing a susceptor into at least two upper and lower parts. CONSTITUTION:A ring-formed upper dividing body 20a formed into taper gradually enlarging as the lower end face 20c is advanced downward and vessel like lower dividing body 20b put above the pedestalling 4 and formed into taper gradually enlarging as the upper end face 20d is advanced downward and contact face of lower end face 20c and upper end face 20d are located on the upper part of surface part of surface part 11a of melt 11 in pulling-up initiation point of time and arranged at the position always heated by a heater 6.
Patent JP-H0668687-A (JP)
Title: Non-volatile semiconductor memory
Inventor: NOJIRI ISAO
IPC: H01L21/8247
Filed: 1992-08-21
Abstract: PURPOSE:To enable shortening whole time for erasing completely without causing over erasing to be conducted by outputting selectively plural erasing signals of different pulse width in accordance with an erasing mode. CONSTITUTION:In an erasing pulse generation section of a source line switch of a flash memory, plural erasing signals of different pulse width are generated. That is, a erasing mode B using a erasing signal of a long pulse width is performed at the initial stage of erasing, next, a erasing mode A using a erasing signal of a short pulse width is performed. The number of stages of frequency divider 37-38 is set so that a pulse width of an output from the last stage frequency divider in which oscillating frequency of a oscillator 36 is divided equals to a pulse width of a erasing signal in the erasing mode A. In the same way as the above, an output pulse width of the last stage frequency divider of frequency dividers 37-46 equals to a pulse width of a erasing signal in the erasing mode B. These signals are supplied to TERSA and TERSB signals and INOR 43 which defines the erasing period of the erasing modes A and B.
Patent JP-H0885819-A (JP)
Title: Pretreatment of material to be worked in laser beam machining
Inventor: NISHIDA NORIHIDE
IPC: B23K26/18
Filed: 1994-09-19
Abstract: PURPOSE: To eliminate the need for removing a pretreating agent after laser beam machining and to improve the absorptivity of a YAG laser as well as that of a carbon dioxide gas laser. CONSTITUTION: The surface of a material to be worked is coated prior to laser beam machining with a transparent film of the mixture of one or >=2 kinds among the inorg. material such as oxide and nitride, org. matter and organometallic compd. exhibiting absorptivity close to the laser beam wavelength and having a high transmittance to the visible light by the vapor-phase film forming method such as coating utilizing a sol-gel method, ion plating, sputtering and chemical vapor deposition.
Patent JP-H0665389-A (JP)
Title: Production of crosslinked polyolefin
Inventor: ASANUMA TADASHI
IPC: C08L71/00
Filed: 1992-08-21
Abstract: PURPOSE:To efficiently obtain a crosslinked polyolefin excellent in resistance to organic solvents by melt compounding a specified olefin copolymer, a polyalkylene oxide and a catalyst. CONSTITUTION:An alkenylsilane/olefin copolymer, a polyalkylene oxide and a catalyst are melt compounded. As the catalyst, a rhodium salt, such as a triphenylphosphine complex of rhodium chloride, or a group IVb metal alkoxide represented by the formula R<1>nM(O-R<2>)4-2 (wherein R<1> and R<2> may be the same or different and are each a 1-12C hydrocarbon group; (n) is an integer of 0 to 3; and M is a metal selected from among titanium, zirconium and hafnium), such as a titanic acid ester, is preferably used. Examples of alkylene oxides serving as the raw material for the polyalkylene oxide include ethylene oxide, propylene oxide, butylene oxide and styrene oxide.
Patent JP-H0563803-A (JP)
Title: Trunk dial load control system by external equipment
Inventor: NODA OSAMU
IPC: H04Q3/545
Filed: 1991-09-04
Abstract: PURPOSE:To relieve the load of a network by allowing an external equipment to send a dial restriction signal to each exchange when a specific line in the network is in congestion so as to allow a caller station to restrict all calls going to use the line. CONSTITUTION:An exchange is provided with an interface function with an external equipment, a means sending numeral information dialed at dialing and a means sending its path to the external equipment at restoration, and receives dial path information designated from the external equipment, edits and processes the information, connects the path as designated to a caller receiving the information and informs the connected path to the external equipment 5. The external equipment 5 is provided with a function which receives dial/ reply/restoration information from the exchange, calculates and monitors the traffic state in the network, retrieves the final called party depending on the dial number information from the exchange side and sends restrict information to a caller station based on the trunk information of the network when congestion takes place.
Patent JP-S59114035-A (JP)
Title: Manufactue of expandable thermoplastic resin molded article
Inventor: TAYA TAKEYOSHI
IPC: B29C59/00
Filed: 1982-12-20
Abstract: PURPOSE:To manufacture a molded article with fine external appearance at low cost by a method wherein a cavity is vacuumized by sucking the air in the cavity and expandable thermoplastic resin particles are filled in the cavity by the suction force. CONSTITUTION:A cavity 3 is formed by closing a mold. Expandable resin particles are charged in a hopper and then fed in a pipe 10 by opening a stopper 11. Simultaneously, a suction apparatus is put into operation to produce negative pressure in the cavity 3 in order to suck the expandable resin particles, which is supplied into the pipe 10 by a predetermined amount, from the pipe 10 and to fill them in the cavity 3. Because pipes 8 and venting grooves 7 are fitted to thin parts 5, the complete filling of particles to which is regarded as specially difficult conventionally, and to the corners of the cavity 3 in order to suck the air in the cavity 3 therethrough, no filling failure of resin particles occurs, resulting in producing no rejected part.
Patent JP-H1164911-A (JP)
Title: Device and method for correcting blur and storage medium
Inventor: YAMAZAKI TATSUYA
IPC: G03B5/00
Filed: 1997-08-20
Abstract: PROBLEM TO BE SOLVED: To perform excellent blur correction in both of the case photographing while fixing a camera and the case photographing while manually holding the camera. SOLUTION: This device is provided with frequency detection circuits 102a, 102b detecting a blur frequency, amplitude detection circuits 103a, 103b detecting the magnitude of the blur, a state detection means 101 detecting whether a photographing equipment is fixed onto a support part such as a tripod or it is held in one's hands based on the blur frequency and the blur amplitude and correction state revision means 402a, 402b switching to a blur correction state when the photographing equipment is fixed onto the support part such as the tripod or the blur correction state when the photographing equipment is held in one's hands based on the detection result of the state detection means 101, and shake-return and fluctuation when panning operation is performed on the support part such as the tripod are prevented by recognizing the photographing state of the camera.
Patent JP-H02103836-A (JP)
Title: Electromagnetic contact device
Inventor: TOMIOKA KOTARO
IPC: H01H50/54
Filed: 1989-08-30
Abstract: PURPOSE:To facilitate assembling through simplification of the structure of contact point (b) by forming a horizontal hole at the upper part of a movable contact element holder fixed at the vertical hole of a column of a movable contact element support, and maintaining the element having a contact point and provided upwards. CONSTITUTION:A fixing spring 19 is arranged in an angular hole 18b of the lower side body part of a movable contact element holder 18 while guided by spring guide projections, and a spring receiver 11 is arranged via a T-shaped lateral hole 1d of column 1a of the holder 18, then the holder 18 is fixed to the column 1a. Next, an angular hole 18a of the upper body part of the holder 18 has a contact spring 20 therein through spring guiding protrusion 18d, and a movable contact element 21 having a contact point 21 set upwards so as to be sandwiched by a spring 20 and the upper wall of the hole 18a, then a fixed contact element 7 provided with a contact point joined with the contact point of the element 21 is arranged, so that a contact point (b) is constructed. It is thus possible to form the contact point (b) with simple structure and easy work by using the movable contact element frequently used for a general purpose electromagnetic contact device.
Patent JP-S6286666-A (JP)
Title: Fuel cell
Inventor: FUJIMURA HIDEKAZU
IPC: H01M4/86
Filed: 1985-10-09
Abstract: PURPOSE:To aim at expansion of the effective reaction area of a porous body electrode and accelerate the diffusion of gas to the inside of the electrode as well as to aim at a sharp improvement in cell output, by forming each hole of the electrode into various hole diameters in size. CONSTITUTION:An electrode 2 is a porous structural body made up of sintering fine powder of metal (Ni) and metal oxide (NiO). An electrode part 13 is constituted of a grain small in a grain diameter, while its specific surface also is large enough, and a surface of the electrode 2 is favorably wet by an electrolyte solution out of an electrolytic late,1 thus this part is a zone where electrochemical reaction is most actively carried out A diameter of each grain grows large in proportion as it goes toward a separator 4 from the electrolytic plate 1, and a hole diameter also proportionally grows large, therefore a hole 14 is strong in a function as a passage of gas 30. An intermediate part 15 of the electrode 2 effectively works even as an electrode reaction part, and it comes to a most favorable zone for diffusion of the gas 30. With this constitution, all parts where the electrode is wet come to an electrode effective area, while all other than spots dipped in the electrolyte solution come to gas passages, whereby the gas diffusion is accelerate, meaning that it leads to improvement in cell output.