baber/WOPTO huggingface dataset:
Patent JP-2002329932-A (JP)
Title: Nitride iii-v compound semiconductor laser element and manufacturing method therefor
Inventor: ASANO TAKEHARU
IPC: H01S5/323
Filed: 2001-05-02
Abstract: PROBLEM TO BE SOLVED: To provide a nitride III-V compound semiconductor laser element and a manufacturing method therefor which has a flatter resonator end face than a conventional one and a low threshold current. SOLUTION: The GaN type semiconductor laser element 40 has the same constitution as the conventional one, except the constitution of a seed crystal layer 42 which is a stripe type seed crystal layer of AlXGa1- XN (0<X<=1, e.g. X=0.08) in the form of a stripe ridge structure making an angle of 30 deg. to cracks grown in the AlGaN layer forming a seed crystal layer. The semiconductor laser element has a resonator end face formed perpendicularly to the laser stripe direction, the stripe direction of the crystal layer 42. This layer 42 is formed in an accurate orientation relative to a reference line. Hence, the resonator end face is smoother and flatter cleavage plane than the conventional GaN type semiconductor laser element 10, and the threshold current is also low.
Patent JP-2002329754-A (JP)
Title: Method for manufacturing tape carrier
Inventor: NAKAJIMA EIICHI
IPC: H01L21/60
Filed: 2001-05-02
Abstract: PROBLEM TO BE SOLVED: To provide a tape carrier of high electrical-reliability by solving problems of corrosion in treatment of solder resist and tin plating and deterioration of adhesion between a lead and a base film in the tin plating. SOLUTION: After the tin plating 4 is conducted on a copper foil 2 on the base film 1, a pattern is formed on the tin-plated copper foil 2. Then, the resist is removed away, a solder resist 6 is printed on a required tin-plated pattern.
Patent JP-2002326069-A (JP)
Title: Protection structure and protection buffer body construction method for water barrier normal plane in final disposal plant
Inventor: TANIGUCHI MITSUO
IPC: B09B1/00
Filed: 2001-05-07
Abstract: PROBLEM TO BE SOLVED: To provide a protection structure and a protection buffer body method for water barrier normal plane in final disposal plant which reliably protect a water barrier sheet which is laid in a man-made surface of a final disposal plant from the breakage on a reclamation and form a protection layer which is inexpensive and stable. SOLUTION: This protection structure and protection buffer body method of water barrier normal plane in final disposal plant is provided with the water barrier sheet 4 which is laid in the developed land surface 2 of the final disposal plant 1 and the buffer bodies 5 which are made by filling buffer material 10 including the wood pieces 11' which are obtained by cutting the wood 11 generated at least on the field preparation into bag bodies 9 which are formed with net bodies 6, 7 made of corrosion-resistant material and inner partitions 8 and, therein, the buffer bodies 5 are densely laid in a contour line shape and form a buffer layer on the water barrier sheet 4.
Patent JP-2002332544-A (JP)
Title: Metal sheet for metal core base material and its manufacturing method, metal core base material using the same, and build-up printed wiring board
Inventor: DATE MASAYOSHI
IPC: H05K3/46
Filed: 2001-05-08
Abstract: PROBLEM TO BE SOLVED: To provide a metal sheet for a metal core base material and its manufacturing method by which the problem of a phenomenon of dimensional variation occurring at the application of piercing treatment to a cold rolled metal sheet and a phenomenon of dimensional variation occurring at the manufacture of a metal core base material using the metal sheet as a core can be solved, to provide a metal core base material using the metal sheet, and also to provide a build-up printed wiring board using the metal core base material. SOLUTION: In the metal sheet for the metal core base material, the dimensional variation ratio of the metal sheet when piercing treatment of 15-60% hole area ratio is applied to the cold rolled metal sheet is made to <=0.05% both in a cold-rolling direction and a sheet-width direction, respectively.
Patent JP-2002333038-A (JP)
Title: Universal joint
Inventor: KOBAYASHI AKIHIRO
IPC: F16C33/78
Filed: 2001-05-08
Abstract: PROBLEM TO BE SOLVED: To solve the problems on a conventional universal joint using an oil seal for preventing the leakage of an oil and the entry of foreign matters from the outside that a portion contacting the outside air may be worn by the deposition and drying of waste water or paint and on the conventional oil seal giving directivity to a lip portion that the direction should be identified during mounting the oil seal to cause the disturbance of quick mounting work. SOLUTION: This universal joint comprises a bearing cap 5 mounted on an outer periphery portion of a cross spider 3, a retainer 6 for contacting the bearing cap 5 and a base end 8 of the spider 3, and an oil seal 7 provided inside the retainer 6 for contacting the base end 8 of the spider 3 and the bearing cap 5. The oil seal 7 is symmetrical with a ring-formed plane to facilitate mounting work.
Patent JP-2001319578-A (JP)
Title: Plasma display panel
Inventor: YAN CHAN PAKU
IPC: H01J11/22
Filed: 2001-05-09
Abstract: PROBLEM TO BE SOLVED: To provide a plasma display panel capable of preventing a noise and erroneous discharge caused through a static force and an unevenness between a front face substrate and a rear face substrate. SOLUTION: The plasma display panel is composed of the following components; a rear face substrate, multiple barrier walls formed on the rear face substrate, a front face substrate, a dielectric layer that is formed on the front face substrate so as to make a ditch with a given depth along an area adjoining with the barrier wall and an earth electrode that is formed along the ditch of the dielectric layer in such a way that each end is connected for a common use. It follows that a generation of a noise or the product is suppressed, and a working condition is optimized to improve quality of the product.
Patent JP-2002335237-A (JP)
Title: Device and method for managing key
Inventor: ENJOJI ATSUSHI
IPC: H04L9/08
Filed: 2001-05-10
Abstract: PROBLEM TO BE SOLVED: To provide a device and a method for managing key for reporting suitable timing to change a key to a key issuer when utilizing a public key cipher system. SOLUTION: This device has a key storage region 1 for storing the pairs of secret keys and public keys, a time acquiring means 2 for acquiring present time, a key managing means 3 for judging whether it is timing to change the key or not on the basis of the time acquired by the time acquiring means 2 and the generation time of keys saved in the key storage region 1 or on the basis of the number of times of use after the issue of public key, a key generating means 4 for generating a key pair when it is judged that it is timing to change the key, and a key delivering means 5 for delivering the public key in the generated key pair as needed.
Patent JP-2002341095-A (JP)
Title: Radiological image conversion panel and its manufacturing method
Inventor: MAEZAWA AKIHIRO
IPC: G01T1/20
Filed: 2001-05-11
Abstract: PROBLEM TO BE SOLVED: To provide a radiological image conversion panel having excellent brightness, sharpness and radiographic tube voltage characteristic, and its manufacturing method. SOLUTION: This radiological image conversion panel is characterized by having a phosphor layer formed by phosphor particles with a crystallite size of 100-1,000 Å including one or more rare earth elements selected from Nd, Gd, Tb, Dy, Ho, Er, Tm and Yb which hare rare earth elements on a support.
Patent JP-2002341432-A (JP)
Title: Imaging device
Inventor: NAGAO MITSUYOSHI
IPC: G03B15/00
Filed: 2001-05-16
Abstract: PROBLEM TO BE SOLVED: To provide an imaging device constituting so that a camera can be surely set so as to pick up an image through a window surface, and also, the camera can be easily detached and fixed in the original position again as necessary, besides, dew condensation on the inside surface of the window may be prevented. SOLUTION: As for the imaging device 1, the device 1 is provided with a base member 10 which is fixed to the inside surface of a window light-transmissive plate (automobile front glass G) and equipped with an image pickup opening A, a camera case 20 which has an image pickup opening B corresponding to the image pickup opening A, which is attached to the base member 10 and by which a closed space is formed behind the base member 10, and a camera 30, nearly the whole of which is stored in the camera case 20 with leaving a control part (a camera horizontal angle adjusting screw 32 and camera vertical angle adjusting screws 33 and 34) outside the camera case 20 so that the camera can be operated from the outside, and having a lens part 31 whose optical axis faces the front glass G through the image pickup openings A and B,  and the base member 10 and the camera case 20 are freely attachably/detachably engaged with each other by using recessed and projection parts (recessed grooves 11a and 12a and projections 21 and 22).
Patent JP-2002339001-A (JP)
Title: Method for manufacturing composite material
Inventor: OTSUKA MASANORI
IPC: C22C1/05
Filed: 2001-05-17
Abstract: PROBLEM TO BE SOLVED: To efficiently manufacture a composite material containing ceramics and metal. SOLUTION: Stearic acid is added to ceramic particles and metal particles (a mixing step S1). The stearic acid acts as a lubricant for reducing frictional resistance between a die assembly and both particles in a compacting step S2. The resultant green compact is sintered in a sintering step S3 and formed into the composite material as a product.
Patent JP-2002342923-A (JP)
Title: Magnetic transfer method
Inventor: KOMATSU KAZUNORI
IPC: G11B5/86
Filed: 2001-05-18
Abstract: PROBLEM TO BE SOLVED: To perform good magnetic transfer to a perpendicular magnetic recording medium. SOLUTION: A permanent magnet device 5 provided with cylindrical permanent magnets 5a and 5b having a cross section area equivalent to or more than the track surface of a discoid perpendicular magnetic recording medium 2 is used as a transfer magnetic field generating means of a magnetic transfer device. The magnetic recording medium 2 in which initial direct current magnetization is applied to a magnetic layer in a perpendicular direction in advance and the contact body 10 of discoid master carriers 3 and 4 are placed between the two permanent magnets 5a and 5b, so that a transfer magnetic field Hdu is applied in the reverse direction of the initial direct current magnetization direction. Then, a transfer magnetic field Hd is uniformly applied to the whole track surface area, and the magnetic transfer of the whole track surface area is carried out at the same time.
Patent JP-2002349492-A (JP)
Title: Pump casing of pump for jet bath
Inventor: YOSHIHARA KENJI
IPC: F04D29/44
Filed: 2001-05-24
Abstract: PROBLEM TO BE SOLVED: To provide a pump casing of a pump for a jet bath where hot water does not remain in the pump casing, nor the remaining water mixes with new ho water when the hot water of a bath tub is discharged. SOLUTION: The pump casing comprises a pump casing body 28 that has a suction port 26 and a discharge port 27 connecting to a scroll chamber 22 inside and in which the suction port 26 is disposed at the lower position so that the lowest part of a suction water channel 32 is substantially the same as the lowest part of the scroll chamber 22, a mouth ring 33, and a scroll chamber partition wall 34 in the lower part. A scroll chamber wall member 31 mounted between the scroll chamber 22 and the suction port 26 in the pump casing body 28, and the scroll chamber 22 are separately made of synthetic resin. The scroll chamber wall member 31 mounted between the scroll chamber 22 and the suction port 26 in the pump casing body 28 is fixed by ultrasonic bonding.  A remaining water flow outlet 42 connecting the scroll chamber 22 to the suction water channel 32 is disposed at a position of the lowest part between the scroll chamber 22 and the suction water channel 32 of the suction port 26 partitioned by the scroll chamber wall member 31.
Patent JP-2002033275-A (JP)
Title: Lighting system for charged particle lithography device
Inventor: KATSAP VICTOR
IPC: H01J37/04
Filed: 2001-05-28
Abstract: PROBLEM TO BE SOLVED: To provide a method and device for controlling beam radiation by providing a quadrupole lens array in a drift space of a lighting system component. SOLUTION: The lighting system component is an electron gun, a liner tube fitted to the electron gun, or a drift tube while the quadrupole lens array is three or more mesh grids or combination of the grid and a continuous foil. The quadrupole lens array forms multiple micro lenses similar to an optical 'fly's eye' lens. The quadrupole lens array splits the incident solid electron beam into multiple sub-beam, allowing out-going beam radiation to be different from incident beam radiation while total current of beam does not change. The method and device allow individual control of beam current and beam radiation.
Patent JP-2002358738-A (JP)
Title: Signal evaluator and signal evaluation method
Inventor: AKIYAMA ATSUSHI
IPC: H03M13/39
Filed: 2001-05-28
Abstract: PROBLEM TO BE SOLVED: To simplify the constitution of a signal evaluator which evaluates a recording medium or a recording medium driver and makes the evaluation of plural PR systems possible. SOLUTION: The signal evaluator which evaluates the signals decoded by maximum likelihood decoding has a differential metric arithmetic circuit 9 which determines differential metrics, comparators A10 and B11 which judge whether the difference of the differential metrics is below the prescribed threshold or not, counters A12 and B13 which count the pulse outputs of the comparators A10 and B11 and a controller 14 which obtains a signal evaluation index by determining the probability at which the differential metrics attain the prescribed threshold or below in accordance with the number of the measured samples and the number of the samples counted by the counters A12 and B13 and subjecting this probability to arithmetic processing.
Patent JP-2002359112-A (JP)
Title: Method and apparatus for controlling voltage of lifting magnet
Inventor: FUKADA TAKAFUMI
IPC: H01F7/18
Filed: 2001-05-31
Abstract: PROBLEM TO BE SOLVED: To provide a method and an apparatus for controlling voltage of a lifting magnet that achieves miniaturization, high efficiency, and simplification in the apparatus. SOLUTION: In the method for applying voltage in the forward/backward directions of a coil 6 in a lifting magnet 5, a voltage exceeding a rated voltage is applied in the forward direction when attraction starts, the rated voltage is applied in the forward direction after specific time, the application of voltage is stopped and at the same time an reverse current that flows in the coil 6 is monitored when release is started, and the application of voltage is turned on and off in the forward direction to cancel the reverse current.  After that, a specific voltage is applied in the backward direction for demagnetization and a current in the backward direction due to the application is monitored, the application of voltage in the backward direction is turned on and off to prevent the current from exceeding a target current, and the application of voltage in the backward direction is stopped after the specific time.
Patent JP-2002357242-A (JP)
Title: Air pressure controlling type damper and vibration resistant device using damper
Inventor: ICHIKAWA HIROYUKI
IPC: F16F15/02
Filed: 2001-05-31
Abstract: PROBLEM TO BE SOLVED: To provide a damper with new structure capable of controlling damping property and showing effective damping effect to a plurality of vibrations or a wide range of frequencies, and also to provide a vibration resistant device using the damper. SOLUTION: A passive damping effect is exhibited by means of a resonant action of a duplicate vibration system in a range of natural vibration of the duplicate vibration system under a state in which a mass member 86 gets in contact with an elastic contact member 54. Further, an active damping effect based on vibration of the mass member 86 is effectively exhibited by means of a resonant action of the duplicate vibration system in a range of natural vibration of the duplicate vibration system under a state in which the mass member 86 is separated from the elastic contact member 54.
Patent JP-2002359763-A (JP)
Title: Stand for digital camera
Inventor: SASAGAWA MIKIO
IPC: G03B17/56
Filed: 2001-06-01
Abstract: PROBLEM TO BE SOLVED: To make a digital camera small-sized and lightweight and facilitate charging to a secondary battery, connection to various external devices and image data exchange between memory cards. SOLUTION: The stand 3 is provided with an A/V output connector 42, a DC power input connector 43, a USB connector 44, a charging circuit 71, a card reader 75 and a data processing circuit 74. When the digital camera 2 is mounted on the stand 3 and a connector 35 is connected to a connection terminal 36, the charging circuit 71 is connected to a battery 30 to carry out charging. A communication circuit 67 for a personal computer makes data communication with a personal computer via the USB connector 44. An A/V output circuit 69 outputs a composite signal to a monitor or the like via the A/V output connector 42. The data processing circuit 74 exchange data between a memory card 16 of the digital camera 2 and a memory 37 of the stand 3.
Patent JP-2002049596-A (JP)
Title: Information processor and calculation method for the same
Inventor: OSHIMA JOJI
IPC: G06F15/173
Filed: 2001-06-05
Abstract: PROBLEM TO BE SOLVED: To provide a fast and inexpensive computer which can perform the memory access and the transfer of data without impeding the calculation of every element processor 3 and can solve a differential equation by applying an asynchronous communication system. SOLUTION: The data are transferred between the element processors 3 adjacent to each other via a memory part 6 where an independent access is possible, so that both processors 3 never impede their internal processes with each other.
Patent JP-2002366351-A (JP)
Title: Super-scalar processor
Inventor: SUGIMOTO HIDEKI
IPC: G06F1/32
Filed: 2001-06-06
Abstract: PROBLEM TO BE SOLVED: To reduce the power consumption by reducing the man-hours for development or compilation of a program requiring power consuming operation. SOLUTION: The super-scalar processor is provided with a mode setting part 40 where operation modes to designate operation supply voltages and operation clock signals of four execution units 30 and 32 to 34 are set for execution units, under software control a power supply and clock control part 50 which subjects operation supply voltages and operation clock signals of four execution units 30 and 32 to 34 to voltage control or frequency control in accordance with the operation modes to supply them, a status information generation part 60 which generates status information indicating the operation states of operation supply voltages and operation clock signals of four execution units 30 and 32 to 34,  and an instruction issue part 20 which changes instruction issue destinations in accordance with status information to issue simultaneously executable instructions to four execution units 30 and 32 to 34 in parallel.
Patent JP-2002360785-A (JP)
Title: Game machine
Inventor: HISHINUMA TAKAAKI
IPC: A63F5/04
Filed: 2001-06-11
Abstract: PROBLEM TO BE SOLVED: To provide an interesting game machine wherein the game does not become monotonous. SOLUTION: This game machine is equipped with reels (3L, 3C and 3R), a main control circuit (71), and a liquid crystal displaying unit (5). In this case, the reels (3L, 3C and 3R) variably display a plurality of patterns. The main control circuit (71) determines an internal winning character for each game, and stop-controls the variable displaying motion of the reels (3L, 3C and 3R) based on the determined result and a stop operation by a game player. The liquid crystal displaying unit (5) notifies required information for the realization of the winning establishment of a big bonus when the internal winning character is the big bonus in a game which satisfies a specified condition. The specified condition is e.g. the number of times for the game becomes a specified value.
Patent JP-2002365299-A (JP)
Title: Bio chip
Inventor: TANAAMI TAKEO
IPC: B01L3/00
Filed: 2001-06-12
Abstract: PROBLEM TO BE SOLVED: To implement a biochip of simple operation and an inexpensive constitution and capable of preventing the possibility of contact with a solution due to improper operation. SOLUTION: The biochip is provided with an integrated structure in which a rubber plug attached in such a way as to seal an opening part and to be pierced with an injection needle, a collecting part for holding blood collected via the injection needle put through the plug, a pretreating part for extracting unknown samples from the blood, and a combining part for combining the extracted samples at the pretreating part with a plurality of previously prepared and known samples, are sequentially arranged from one end of a blood collecting bag formed in the shape of a flat bag through the use of a flexible material.
Patent JP-2002370885-A (JP)
Title: Room elevator device without machine
Inventor: TAWADA MASANORI
IPC: B66B1/34
Filed: 2001-06-13
Abstract: PROBLEM TO BE SOLVED: To provide an elevator device without a machine room for enhancing work safety and the working efficiency of maintenance-inspection, and superior in design and design performance by incorporating an elevator control device in a landing hall operation panel. SOLUTION: The landing hall operation panel 10 is constituted so that a box-shaped casing 11 with the landing hall side as an opening is inserted into a hole bore in a building wall 20 of a landing hall, and is installed by a machine screw, and a surface plate 12 is installed so as to block up the opening of the casing 11 from the landing hall side. The elevator control device 8 is incorporated into the casing 11, and can be operated from the landing hall side by opening the surface plate 12.
Patent JP-2002369788-A (JP)
Title: Electronic endoscope
Inventor: MATSUURA NOBUYUKI
IPC: A61B1/005
Filed: 2001-06-13
Abstract: PROBLEM TO BE SOLVED: To provide an electronic endoscope in which structure of an tip constituting part is improved and a supporting member, etc., are unnecessary and the outer diameter of the tip constituting part can be made finer. SOLUTION: The tip constituting part 10 is connected with a curved core piece 29a of the tip point of a curved part 11 through a connecting pipe 28 and an adhesive 32 is filled in the connecting pipe 28 and such built-in articles as a solid imaging element 27 arranged in the connecting pipe 28 and a circuit base 13 on which electronic parts are placed are integrally fixed in the connecting pipe 28 with the adhesive 32.
Patent JP-2002373420-A (JP)
Title: Optical recording method
Inventor: YASHIRO TORU
IPC: G11B7/2472
Filed: 2001-06-13
Abstract: PROBLEM TO BE SOLVED: To provide an optical recording method of a compact disk CD-R which is superior in high-speed recording and is recordable. SOLUTION: In this optical recording method, the compact disk CD-R which has a recording layer made of dyestuff material, having a thermal property of thermal decomposition temperature <=450 deg.C, directly or via the other layer on a substrate which has guide grooves on the surface thereof and has a reflection layer directly or via the other layer on the surface side of the recording layer is used; and, further, recording marks are formed on the recording layer by irradiating with recording light from the back surface side of the substrate. Furthermore, this optical recording method features the shortest signal recording pulse (3T pulse) length of a CD signal to be recorded as (3-X)*231.4 ns, where 0.25<=0.08*Vw/Vr+X<=1.25; Vw: recording speed, Vr: standard playback speed of the compact disk (1.2 m/s-1.4 m/s).