baber/WOPTO huggingface dataset:
Patent JP-2001103013-A (JP)
Title: Method for monitoring inter-wavelength optical power variance, and optical equalizer and light amplifier using the same
Inventor: ONAKA YOSHINORI
IPC: H04B10/564
Filed: 1999-09-28
Abstract: PROBLEM TO BE SOLVED: To provide an inter-wavelength optical power variance monitoring method that directly measures signal light power, without needing high wavelength resolution and detects optical power variance between channels with high accuracy, and an optical equalizer and a light amplifier which use it. SOLUTION: This monitoring method includes a process (S101), in which channel information on WDN signal light is obtained, a process (S102) in which at least two measuring wavelength regions are set on the basis of the channel information, a process (S104) in which the channel optical power of the WDN signal light is measured only about each of the measuring wavelength regions and a process (S105) in which an optical power ratio about each of the measuring wavelength regions is calculated, by using the measured value of the optical power to decide the inter-wavelength optical power variance of the WDM signal light.
Patent JP-H10119719-A (JP)
Title: Seat belt retractor
Inventor: MATSUKI BAI
IPC: B60R22/28
Filed: 1996-10-17
Abstract: PROBLEM TO BE SOLVED: To provide an excellent seat belt retractor that can switch energy absorbing mechanism into an operating state and a non-operating state with simple structure. SOLUTION: A seat belt retractor is provided with a torsion bar 2 integrally connected to a bobbin 3 on one end side and integrally connected to a locking base 5 on the other end side, a pawl for impeding the webbing pull-out direction rotation of the locking base 5, a ratchet wheel 18 for engaging the pawl with an engaging internal tooth 25 in case of emergency of a vehicle, a control plate 65 for positioning a locking lever 55 into a first position of being engaged with the ratchet wheel 18 so as to engage the pawl with the engaging internal tooth 25 and into a second position of not being engaged with the ratchet wheel 18 according to the webbing winding quantity, and a locking member 80 engaged with the ratchet tooth 3b of the bobbin 3 so as to impede the webbing pull-out direction rotation.  At the time of positioning the locking lever into the first position, the locking member 80 is engaged with the ratchet tooth 3b.
Patent JP-H06184535-A (JP)
Title: Grout and grouting method
Inventor: IIJIMA SHIGERU
IPC: C09K17/22
Filed: 1992-09-17
Abstract: PURPOSE:To control the bleeding of a grout or a mixture thereof with soil particles without increasing the viscosity of the grout by mixing an inorganic ground stabilizer such as cement suspension with a specific acrylic polymer or a combination of the polymer with an organic dispersant. CONSTITUTION:An admixture for grouting is used such as an acrylic polymer with an intrinsic viscosity of 0.1-2.0dl/g as measured in a 1N sodium carbonate solution, for instance, a polymer of acrylamide, acrylic acid, etc., a copolymer of two or more of these compounds and a salt thereof, a water-soluble copolymer of an acrylic monomer with at least one of methyl acrylate, methyl methacrylate, etc., and a salt thereof. Examples of the organic dispersant include a ligninsulfonic acid salt and a salt of naphthalenesulfonic acid/formaldehyde condensate. The organic dispersant and the acrylic polymer are used in a ratio of 0:100 to 95:5. The grout containing the acrylic polymer is used in an amount of 0.01-5.0% based on the inorganic matter such as cement.
Patent JP-H06102896-A (JP)
Title: Speech recognizing device
Inventor: MORI MASAHITO
IPC: G10L15/193
Filed: 1992-09-18
Abstract: PURPOSE:To improve the recognition rate of a speech. CONSTITUTION:A word lattice is generated from an inputted speech, an aimed word is detected from the word lattice in steps S1 and S2, and an attached word which is related with the aimed word is detected in steps S3 and S4. Then the score of the aimed word detected in the steps S1 and S2 is corrected in a step S6 on the basis of the score or length of the attached word detected in the steps S3 and S4.
Patent JP-H0695588-A (JP)
Title: Dental training device
Inventor: BIICHI DARIRU REIMONDO
IPC: G09B23/28
Filed: 1992-09-17
Abstract: PURPOSE:To provide a dental training device capable of photographing a situation of training in odontotherapy as an animated image, memorizing it and analyzing and evaluating the contents of the training in the treatment by this image. CONSTITUTION:A head model 6 is held almost horizontally on a headrest 4 of a treatment bed 2, simultaneously a chair for a trainee A is arranged in front of the treatment bed 2, and a photographing camera 9 is installed above the treatment bed 2 so as to photograph the contents of a treatment exercise of the trainee A. An animated image photographed by the photographing camera 9 is memorized in an image memory device, and simultaneously, it is projected on a monitor device 15 set on an exercise desk 14 so that a trainee B can analyze and evaluate the image.
Patent JP-2000104862-A (JP)
Title: High altitude suspension tool
Inventor: KISHIDA TAKESHI
IPC: F16L3/22
Filed: 1998-09-29
Abstract: PROBLEM TO BE SOLVED: To easily mount a hook for mounting cables and hoses for construction in arbitrary heights on floors of upper floors and in the upper space in a building under construction. SOLUTION: At an upper end of a suspension pipe 2, a male screw part 2b1 and a longitudinal slit 2b3 are provided. By passing suspension wire 3 through the pipe 2, a magnet 4 is fixed to an upper end of the suspension wire 3. A lower part of the suspension wire 3 is inserted into a hook 5 having a short tube part 5c and a stopper 6 and the hook 5 is fixed to an arbitrary location by operating the stopper 6. The stopper 6 is provided with a tapered surface, a ball and a release tab 6g moving the ball to a release location and has a form that the ball is held by being pressed on the suspension wire 3 by an action of the tapered surface. If a floor 10 of an upper floor is one having an insert 11, the suspension pipe 2 is screwed into the male screw part 2b1 and the magnet 4 is attracted on a steel product floor and steel product suspended over in upper space.
Patent JP-H05113190-A (JP)
Title: Rotary compressor
Inventor: SAWAGATA MASATOSHI
IPC: F04C29/02
Filed: 1991-10-23
Abstract: PURPOSE:To suppress the flow-out of oil from a bearing part on a front head side, preventing seizure, by forming an oil return groove on the inner surface at the bearing part of X front head on a motor side and allowing the oil return groove to communicate to an oil groove through a communication passage. CONSTITUTION:A motor 2 and a compression element 3 having a cylinder 31, bearing parts 32a and 32b, front head 32, and a rear head 33 are installed in a sealed casing 1. An oil returning groove 6 which is inclined in the reverse direction to an oil groove 5 is formed on the inner surface of the bearing part 32a of the front head 32 on the motor 2 side, and a communication passage 7 which allows the edge part of the oil groove 5 to communicate to the edge part of the oil return groove 6 is formed at the bearing edge part of the front head 32. Accordingly, the oil which lubricates the bearing part 32a and reaches the oil groove 5 is returned to a bearing base part 32b positively, passing through the oil return passage 6 from the communication passage 7, without flowing into the primary space on the lower part side of the motor 2. Accordingly, the seizure trouble is prevented, and also the leak of lubricating oil from the primary space is prevented.
Patent JP-H11108319-A (JP)
Title: Treatment tank using jet burner
Inventor: SHIMAZAKI TATSUAKI
IPC: F23G5/033
Filed: 1997-10-08
Abstract: PROBLEM TO BE SOLVED: To prevent a treatment object matter dried and crushed by jet flow from being allowed to stagnate in a treatment tank so as to enable efficient energy saving treatment, by gradually reducing areas from a tank body part to a discharge outlet according to varying distance to the discharge outlet as the distance becomes smaller. SOLUTION: A treatment tank 2 is formed in a shape having a tank center section 5 as a tank body part, and a tank upper section 4 having areas from a top end of the tank center section 5 to a discharge outlet 3 gradually decreasing according to distance to the discharge outlet 3, as the distance to the discharge outlet 3 becomes smaller. A treatment object matter 8 fed to the treatment tank 2 through a feed inlet 9 by a screw conveyor or the like starts to be dried and crushed by jet flow 10 at a tank bottom section 7, and the treatment object matter 8 is carried and transferred by the jet flows 11, 12, 14 along wall faces of the treatment tank 2 by making drying and crushing processes proceed. Thus, variation in quality becomes small and effective energy saving treatment becomes possible.
Patent JP-H01118997-A (JP)
Title: Gas leak accident preventing device
Inventor: SAKUMA TOMOYUKI
IPC: G08B21/16
Filed: 1987-11-02
Abstract: PURPOSE:To prevent the malfunction of an alarm and shut-off valve by using a detection value which can detect a correct gas leak not to be effected with a circumferential temperature change, etc. CONSTITUTION:When gas leaks from a gas line, respective detection values of pressure sensors P1 and P2 to correspond to a ambient temperature and to trail it are compared by a controller C. Further, when the difference corresponds to the ambient temperature, and is within the value of a gas leak allowable range set beforehand, an alarm A and a signal transmitter (t) are not functioned, whereas, when the difference is the value or above, a signal to function the alarm A and the signal transmitter (t) is sent, the alarm A sounds, and the signal transmitter (t) transmits a signal to maintain the closed condition of the shut-off valve 4 so that the shut-off valve 4 and shut-off valve 5 may not open even when a valve operating part T is operated. Thus, the erroneous alarm and the malfunction of the shut-off valve can be prevented from generating.
Patent JP-S61142040-A (JP)
Title: Precision position determining method
Inventor: CHIYAARUSU ADAMUSU
IPC: B23Q5/34
Filed: 1985-12-10
Abstract: The incremental very accurate positioning device is operable to control accurate positioning of a movable member such as a tool. The apparatus comprises a base (24) with a mounting bar (60) spaced from the base (24) for mounting the member. The bar (60) is movable along its elongate axis by a drive force applied to the proximal end (62) thereof for moving the distal end (64) forwardly and rearwardly along the axis. The bar (60) is mounted on two parallel spaced elongated flat springs (72, 74) that extend transversely of the bar (60). The springs (72, 74) are fixed to the bar (60) for maintaining an axial force on the bar (60) and are mounted at each end to a block (31-34) which is pivotally mounted on the base (24).
Patent JP-H07108359-A (JP)
Title: Device for monitoring friction force between continuous casting mold and cast slab
Inventor: KIHARA KAZUMA
IPC: B22D11/16
Filed: 1993-10-08
Abstract: PURPOSE:To predict and prevent the occurrence of breakout by subtracting and amplifying a DC component from the measured value of casting speed and comparing the variation of the obtd. casting speed with a prescribed threshold value. CONSTITUTION:In a continuous casting apparatus 1, molten steel (h) is transferred from a ladle 2 to a tundish 3 and poured into a mold 5 from an immersion nozzle 4. A cast slab 7 is drawn out by drawing rolls 9a, 9b, 9c and cut off by a drawing cutter 10. The casting speed of the cast slab 7 is detected by a casting speed detecting means 16. The DC component is subtracted and amplified from the actual measured value VP of the obtd. casting speed by using means of an analog electron circuit 36 and an arithmetic and logic circuit. The variation of the casting speed obtd. by this means is compared with the prescribed threshold value by a comparing means such as a personal computer 18, and the threshold value being the reference for judging whether or not the abnormality between the mold slab occures is calculated. By this method, the friction force between the mold and the cast slab can always, automatically and quantitatively be observed.
Patent JP-H03136377-A (JP)
Title: Mos transistor
Inventor: FUKUSHIMA YOSHIBUMI
IPC: H01L29/78
Filed: 1989-10-23
Abstract: PURPOSE:To improve the electrostatic breakdown strength of a semiconductor device by forming a low-concentration impurity diffusion area end high- concentration impurity diffusion area in a state where the areas face the gate electrode of a drain ares in the vicinity of the gate electrode. CONSTITUTION:In a transistor Q1, low-concentration impurity diffusion areas 14 and high-concentration impurity diffusion area 1 are formed in the gate axis direction of the transistor Q1 along a gate electrode 11. When a positive overvoltage is applied across a power supply terminal 21, a breakdown voltage is quickly produced across the area 17 in the vicinity of the gate electrode 11 of the drain area in the transistor Q1 and the terminal 21 and a ground terminal 22 are connected with each other with low impedance, resulting in the absorption of the overvoltage. Since the breakdown voltage is produced only in the high-concentration impurity diffusion area 17 and no overvoltage is produced in the low-concentration impurity diffusion areas 14 and 14, transistors Q1 and Q2 are not damaged.
Patent JP-S63131382-A (JP)
Title: Magnetic disk device
Inventor: KONISHI HIROSHI
IPC: G11B21/08
Filed: 1986-11-21
Abstract: PURPOSE:To quicken the detection of track 0 by inputting a sample signal so as to detect the presence of a recognition pattern of a track 0 inputted while being included in a readout signal and sending a track 0 detection signal in case of track 0 detection. CONSTITUTION:As to plural data tracks provided to a magnetic disk 1, the track 0 recognition pattern identifying the track 0 and the tracks other than the track 0 is provided on a track at the outside of a write or read area of the data. Then a readout signal of track 0 recognition pattern read by a magnetic head 4 and a sample signal generated based on a spindle index signal are inputted to detect the track 0 by a track 0 detection means 5 thereby detecting the track 0. Thus, the time required to detect the track 0 is reduced.
Patent JP-H08138928-A (JP)
Title: Persistent current switch
Inventor: YOKOYAMA SHOICHI
IPC: H01F6/04
Filed: 1994-11-10
Abstract: PURPOSE: To obtain a persistent current switch which is thermally stabilized and lessened in heater capacity by a method wherein a thermal switch through which a thermal circuit composed of a low-temperature stage and a switch support member is closed or opened is provided. CONSTITUTION: A thermal switch 20 through which a thermal circuit composed of a low-temperature stage 17 and a switch support member 18 is closed or opened is provided. A switch winding 3 of a switching section 10 is heated by a heater 5 to turn a switch superconductive lead wire into a normal conductive state, a current switch is turned off, and a current is fed to a superconductive coil from a main power supply. On the other hand, the heater 5 is made to stop heating the switch winding 3 to turn the thermal switch 20 on to short the thermal circuit, whereby the persistent current switch is turned on. When the thermal switch 20 is turned on to short the thermal circuit, a movable conduction cooling member 21 is driven upwards by a drive 23 to bring the top into contact with the underside of the switch support member 18.
Patent JP-H03138847-A (JP)
Title: Ion implanter
Inventor: NAITO KATSUO
IPC: H01J49/06
Filed: 1989-10-23
Abstract: PURPOSE:To keep the space charge effect of an ion beam nearly constant and suppress the fluctuation of the beam focus point position when operating parameters are changed by providing electron absorbing electrodes to absorb electrons existing in the ion beam, and applying the positive voltage from a DC power source. CONSTITUTION:Electron absorbing electrodes 12 are provided at a position not hit by an ion beam 4 near a beam transportation line between an ion source 2 and an analyzing electromagnet 6, and the positive voltage is applied from a DC power source 14. Electrons existing in the ion beam 4 between the ion source 2 and the analyzing electromagnet 6 can be absorbed by electron absorbing electrodes 12, and the absorption quantity can be adjusted by increasing or decreasing the applied positive voltage. The effective space charge effect added with both actions of positive ions in the ion beam 4 and electrons in this segment can be kept nearly constant when operating parameters affecting the space charge effect such as the ion type, energy, and beam quantity of the ion beam 4 and the degree of vacuum of the beam transportation line are changed.
Patent JP-H0996841-A (JP)
Title: Optical switch formed by using liquid crystal
Inventor: TANIGUCHI TAKASATO
IPC: G02F1/13
Filed: 1995-09-29
Abstract: PROBLEM TO BE SOLVED: To provide an optical switch which is small in size, is easy to manufacture and is enhanced in the S/N of output light by constituting a device having the liquid crystals packed into a space having ruggedness in such a manner that input light is modulated and controlling the orientation state of the liquid crystals. SOLUTION: The refractive index of the liquid crystals 9 packed in the recessed parts of diffraction gratings 5-1 to 5-4 is controlled by the electric field impressed on electrodes 7-1 to 7-4 by a switch group 13 and a power source 12 according to optical switching signals, by which the diffraction effect to incident light 3 is controlled and input signals are transmitted to an output port 11. Namely, the diffraction effect to the incident light 3 is controlled and the input signals are transmitted to the output port 11 by controlling the electric field to be impressed on the liquid crystals 9.  If, however, the deflection state of the incident light 3 intersects orthogonally with the orientation of the liquid crystals 9 (P polarized light), the ordinary refractive index of the liquid crystals 9 is always sensed regardless of the presence or absence of the electric field impression and the diffraction is always generated in the incident light 3. Then, the polarization state of the incident light 3 is required to be made parallel (S polarized light) with the orientation of the liquid crystals 9.
Patent JP-S63129682-A (JP)
Title: Semiconductor laser device
Inventor: MORI YOSHIHIRO
IPC: H01S5/00
Filed: 1986-11-20
Abstract: PURPOSE:To make it possible to perform operation at room temperature and to make it possible to perform modulation at a small power amplitude, by inputting transverse magnetic field light to a semiconductor laser, which is oscillated at a transverse electric field mode, and varying a current in the vicinity of a current value where the modes of the transverse electric field and the transverse magnetic field are switched. CONSTITUTION:A current source 102 is connected to a semiconductor laser 101, which is oscillated at a transverse electric mode. Light in a transverse magnetic mode from a semiconductor laser 104 in a light source 105 is inputted to the semiconductor laser 101. Then the transverse electric field mode and the transverse magnetic mode are switched rapidly with respect to the change in quantity of current, in which the oscillating mode of the laser 101 is injected at room temperature. The switching is taken out through a glan-Thompson prism 111 in a polarization plane selector 110 as a change in light output. The selector is provided in front of the laser 101 and passes only the light having one polaralizing direction among the light rays emitted from the laser 101. The current is varied in the vicinity of the current value where the modes are rapidly switched, and the light intensity is modulated at a current amplification of about 1 mA.
Patent JP-H10100997-A (JP)
Title: Remote-controlled helicopter
Inventor: NAGAMATSU KEITA
IPC: B64C39/02
Filed: 1996-09-27
Abstract: PROBLEM TO BE SOLVED: To simplify handling operation including maintenance by improving the durability of bearings to support a main rotor at variable pitches. SOLUTION: A remote-controlled helicopter used to spray chemicals into air is provided with sets of bearings 38, 42 on the pitch-variable axial core of a main rotor 1. On the bearings 38, 42, a rotary seat 35 to mount the main rotor 1 at variable pitches, a fixed seat 39 to fix it to the mainbody side and loose seats 36, 40 held between the rotary seat 39 and the fixed seat 39 via the bearings 37, 41 are provided. It has a one-direction rotating member 43 mounted to rotate the loose seats 36, 40 only in one direction.
Patent JP-2000114338-A (JP)
Title: Method and device for evaluating characteristics fluctuation of semiconductor device, and recording medium where characteristics fluctuation evaluating program is stored
Inventor: YASUDA KENJI
IPC: H01L21/8238
Filed: 1998-09-30
Abstract: PROBLEM TO BE SOLVED: To easily select specified parameters used in calculating a worst-case parameter. SOLUTION: A parameter, which is not suitable for representing a characteristics, has some parameters in a main parameter (step ST31) removed, and a model formula is extracted (step ST32). The values of parameters extracted from the same chip are substituted in the model formula to calculate the characteristics (step ST32). A correlation coefficients between the characteristics value calculated using the model formula and a measured characteristics are acquired (step ST33). Specific parameters are selected based on the correlation coefficients (step ST34).
Patent JP-H09117816-A (JP)
Title: Steel material hot machining device
Inventor: MATSUDAIRA YUKIHIKO
IPC: B22D11/128
Filed: 1995-10-25
Abstract: PROBLEM TO BE SOLVED: To prevent an increase in the temperature of a machining blade by arranging a rotary cutting tool composed of an arbor having a crown and a cylindrical shank fitted in its outer periphery via a bearing and having a cutting edge in its outer surface. SOLUTION: A rotary cutting tool 2 is composed of a shank 4 whose cutting edge 3 is attached to the outer surface an arbor 10 via a bearing 11. The rotary cutting tool 2 is fixed in a specified position to be a crown with its both ends supported on a bearing 20 so as to be rotated. The shank 4 is rotated by a rotation driving device 7 during cutting and the shank 4 is pressed to the surface of a material 1 to be cut by a carrying roll 6 against this rotary cutting tool 2 while rotating the shank 4 with the arbor 10 for carrying the loaded material 1 to be cut as a shaft and thereby a surface layer defect is eliminated by the cutting edge 3.
Patent JP-H021202-A (JP)
Title: Car seat
Inventor: SERUJIYU DEREI
IPC: B60N2/90
Filed: 1988-11-04
Abstract: PURPOSE: To provide an automobile seat, with which a device for adjusting a side wing has a small number of parts and is inexpensive, operation is facilitated and assembly is simplified, by attaching the terminal part of a wing wire into a thin groove hole formed inside the side member of a frame and letting the adjuster have a section for forming a hook to be directly engaged on the wing wire and a section for forming a nut to move along a correspondent control screw. CONSTITUTION: The adjuster for the angle positions of respective wing wires 7 and 9 is composed of the same type of a control screw 17 directly attached on side frame members 3 and 5 and an adjusting member 19, which can axially move on the screw 17, fastened to the wing wires 7 and 9. When an operating knob 37 is turned in 1st rotating direction, two nuts 26 of the adjuster incline the wing wires 7 and 9 outside by the screw 17 mutually connected by a flexible cable 29. When the operating knob 37 is turned in other rotating direction, the wing wires 7 and 9 are inclined inside. Two side wings on a sitting plane can be exactly placed at desired positions by the simple operation of the control knob 37.