baber/WOPTO huggingface dataset:
Patent JP-2001023143-A (JP)
Title: Magnetic recording medium and method for recording/ reproducing the same
Inventor: NAGAI NOBUYUKI
IPC: G11B5/66
Filed: 1999-07-06
Abstract: PROBLEM TO BE SOLVED: To make constructible a high-density recording system by forming a magnetic layer on a nonmagnetic supporting body, and setting the product of the amount of residual magnetization and the film thickness of the magnetic layer, and the track pitch of recording tracks formed to the magnetic layer in a specific range. SOLUTION: The magnetic layer 2 of a metallic magnetic thin film is formed on a nonmagnetic supporting body 1, thereby constituting the magnetic recording medium. In the magnetic recording medium, the product Mr.t of the amount of residual magnetization Mr and the film thickness(t) of the magnetic layer is set to be 0.5-3.0 memu/cm2 and, the track pitch of recording tracks formed to the magnetic layer is set to be 1-5 μm. At this time, the thickness of the magnetic layer 2 can be controlled by changing a line speed in a thin film form apparatus, and the amount of residual magnetization can be controlled by changing an amount of oxygen introduced during the film formation. The product of the amount of residual magnetization and film thickness of the magnetic layer is specified by controlling the two parameters desirably.
Patent JP-2001023917-A (JP)
Title: Semiconductor device having suppressed fluctuation
Inventor: OODOMARI IWAO
IPC: H01L21/265
Filed: 1999-07-06
Abstract: PROBLEM TO BE SOLVED: To suppress the fluctuation of the numbers of impurity atoms included in respective semiconductors, by implanting single ion into each semiconductor by specific plural times a single ion generated through a single-ion implanting apparatus. SOLUTION: In a silicon chip 2 present in a silicon wafer 1, a MOSFET integrated circuit 3 are included. Accompanied by fining a semiconductor device in the direction of an arrow 5, a channel region 4 of a MOSFET of the constituent of each MOSFET integrated circuit 3 is fined into the ones shown by 4-1, 4-2, 4-3, and variation of the numbers of impurity atoms 11 included in the respective channel region 4 is generated in the direction of the arrow 5. In the particularly fined channel region shown by 4-3, there are the one having the impurity atoms 11 and the one having no impurity atom 11. A single ion 8 generated through a single-ion implanting apparatus 7 is implanted by specific plural times into each fined channel region shown by 4-3 to correct the fluctuation of the numbers of the impurity atoms 11.
Patent JP-S6084370-A (JP)
Title: Adhesive for production of corrugated cardboard
Inventor: FUKUSHIMA RIKIO
IPC: C09D5/44
Filed: 1983-10-17
Abstract: PURPOSE:To provide the titled adhesive which can laminate corrugated cardboards with good adhesion at a high speed and requires a less quantity of heat in the lamination, consisting of a paste soln. contg. a cooking product of a processed corn starch. CONSTITUTION:Corn starch having an amylose content of at least 35wt% is treated with a mineral acid or an org. acid to form an acid-treated corn starch which is then reacted with acetic anhydride to esterify the starch. The resulting ester is reacted with propylene oxide to etherify it. The resulting processed starch is dispersed in water and gelatinized by a direct heating system by steam blowing to produce an adhesive for use in the production of corrugated cardboards, which is composed of a paste soln. having a starch content of 20- 50wt% and a viscosity (85 deg.C) of 50-2,000 Brabender unit.
Patent JP-H0843933-A (JP)
Title: Camera
Inventor: TAKU MASAKAZU
IPC: G03B17/00
Filed: 1994-07-26
Abstract: PURPOSE:To save the space, lower the cost, and improve the reliability of detecting use condition of a film cartridge. CONSTITUTION:A camera is provided with a joining member 5, a revolution detecting means 8, and rotary phase detecting means 6, 7; said joining member 5 is installed unitedly with a fork 4, can go into and come out of a joining groove 1aa formed in a spool 1 of a film cartridge 3, and transmits the driving force of the fork 4 to the spool by entering into the groove 1aa and fitted with it, said revolution detecting means 8 detects the spool 1 starts rotating sequentially with the fork 4, said rotary phase detecting means 6, 7 detect the rotary phase of the fork 4 immediate after the revolution detection by the revolution detecting means 8 in order to detect the use condition of the set film cartridge 3. When the revolution detecting means 8 detects that the joining member is joined with the joining groove of the film cartridge 3 and that spool 1 starts rotating sequentially with the fork 4, the rotary phase of the fork 4 at that moment is detected by the rotary phase detecting means 6, 7 and thus the use condition of the set film cartridge 3 can be detected.
Patent JP-H0243365-A (JP)
Title: Organic metal composition for vapor growth and vapor growth method
Inventor: IMORI TORU
IPC: C23C16/20
Filed: 1988-08-03
Abstract: PURPOSE:To produce the org. metal compsn. for vapor growth having excellent preservable stability by adding a specific ratio of ether to alkyl metals such as alkyl gallium. CONSTITUTION:The ether addition body is produced by adding >=0.5 equiv. ether to the alkyl metals of any >=1 kinds among alkyl gallium, indium and aluminum. The alkyl groups of the alkyl metals are preferably trimethyl, triethyl, dimethyl ethyl, etc. Dimethyl ether, diethyl ether, etc., are used as the ether. The excellent ether addition product having the holdability is obtd. in this way. The gallium, etc., are stuck to a substrate surface when this product is thermally decomposed at about 350-1000 deg.C in the copresence of hydrogen, etc.
Patent JP-S6083191-A (JP)
Inventor: FUKUNAGA TADASHI
IPC: G07D9/00
Filed: 1983-10-14
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-S5982620-A (JP)
Title: Production of erase head for multiple tracks
Inventor: KOINUMA KAZUO
IPC: G11B5/187
Filed: 1982-11-02
Abstract: PURPOSE:To produce a multiple track erase head extremely easily by forming plural grooves deeper than gap depth and shorter than the distance up to winding parts with prescribed spaces, inserting non-magnetic materials into the grooves and then by grinding the tape sliding surface. CONSTITUTION:The plural grooves 4 extended in the direction approximately perpendicular to the longitudinal direction of gaps (g) from the tape sliding side, deeper than the gap depth (d) and shorter than the distance up to the winding 3 part are formed on the basic material for an erase head with prescribed spaces to produce the intermediate product for a multiple track erase head. The non- magnetic materials 5 are embedded into the grooves 4 and the tape sliding surface is ground to produce the tape sliding surface provided with a prescribed shape.
Patent JP-H0940714-A (JP)
Title: Aminoalkoxysilane
Inventor: IGAI SHIGERU
IPC: C08F10/06
Filed: 1995-07-28
Abstract: PROBLEM TO BE SOLVED: To provide an aminoalkoxysilane useful as an α-olefin polymerization catalyst component having high activity and high stereoregular polymerization activity by specifying its chemical structure. SOLUTION: This aminoalkoxysilane is represented by formula I or II (R<1> is methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl, cyclopentyl or cyclohexyl; R<2> , R<3> and R<4> are each a 1-8C hydrocarbon group; R<5> is a cyclic amino; and n is 0 or 1). This compound can be used effectively as a component of a supported catalyst for polymerizing an α-olefin. Namely, a catalyst system comprising a solid catalyst component essentially consisting of Mg, Ti, a halogen and an electron donor, an organoaluminum compound and a dialkylaminoalkoxysilane of formula I is highly active and is desirable for obtaining a highly stereoregular polymer.
Patent JP-H1017304-A (JP)
Title: Ozonizer
Inventor: OGAWA OSAMU
IPC: C01B13/11
Filed: 1996-07-02
Abstract: PROBLEM TO BE SOLVED: To provide an energy saving type ozonizer having a simple structure and high in ozone generation efficiency. SOLUTION: This ozonizer is provided with an electrode body 2 composed of a metallic film covering the inner peripheral surface of a thin dielectric tube and a metallic rod 1 inserted in the dielectric tube so as to be in close contact with the metallic film, an electrode wire 3 spirally wound around the outer peripheral surface of the dielectric tube and a voltage impressing means 4 for impressing voltage between the electrode body 2 and the electrode wire 3. Ozone is generated on the creeping part of the electrode wire 3 by impressing voltage between the electrode rod 2 and the electrode wire 3 to creeping- discharge using the voltage impressing means 4.
Patent JP-S6171342-A (JP)
Title: Method for evaluating surface of wafer of crystalline material
Inventor: URAO RYOICHI
IPC: G01N23/20
Filed: 1984-09-14
Abstract: PURPOSE:To evaluate the surface of a wafer accurately, based on the diffracted image of a reflected electron beam, by projecting the electron beam from the surface of the water to an arbitrary point on an edge, which is formed by a cleaved plane of the wafer of a crystalline material that is cleaved in extremely low temperature liquid and the surface of the waver of the crystalline material, at a specified angle. CONSTITUTION:A crystalline material, e.g., a GaAs ingot, is sliced, and a sliced GaAs wafer, whose surface is (100), is obtained. The wafer is cleaved in an extremely low temperature liquid such as liquid nitrogen, and a sample piece 2 of about 5X5mm<2> is obtained. An electron beam is projected from the upper part of the well surface on an edge 5, which is formed by the (100) surface and the (110) cleaved plane 4, at an angle of 0=1 deg.. Then the diffracted image is observed. Thus the dislocation of the surface and the introduction of strain are well suppressed in the extremely low temperature liquid. The change in crystalline property caused in the wafer during the machining processes can be evaluated without relation to the inside of the wafer and the crystalline property of the back surface. When the crystalline property of the surface is good, diffraction spots 7 simultaneously appear together with Kikuchi lines. A debye ring appears on the polycrystalline surface.
Patent JP-S6435560-A (JP)
Title: Laminated photosensitive body for positive electrostatic charge and production thereof
Inventor: NISHIKAWA KOJI
IPC: G03G5/047
Filed: 1987-07-31
Abstract: PURPOSE:To maintain the concns. of hole transfer materials in respective layers at set values and to obtain a high sensitivity by laminating a hold transfer layer, intermediate layer and hole generating and transfer layer successively on a conductive substrate. CONSTITUTION:This photosensitive body consists of the conductive substrate 1, the carrier transfer layer 2 on the substrate, the intermediate layer 3, and the carrier generating and transfer layer 4. Namely, the carrier transfer layer 2 consists of a binder resin layer contg. the hole transfer material and the intermediate layer 3 consists of a vapor deposited metal layer, resin layer or the resin layer contg. fine conductive powder. The carrier generating and transfer layer 4 consists of a binder resin layer contg. a charge generating material and the hole transfer material. The coating solvent of the carrier generating and transfer layer 4 penetrates into the carrier transfer layer 2 at the time of coating the carrier generating and transfer layer and the elution of the carrier transfer material is thus prevented by providing the intermediate layer 3 in such a manner. The concns. of the hole transfer materials in the respective layers are thereby strictly maintained and the org. photosensitive body having the high sensitivity is obtd.
Patent JP-S5892592-A (JP)
Title: Single substance pressure sensitive recording sheet
Inventor: OKAMOTO SHIGEO
IPC: B41M5/124
Filed: 1981-11-30
Abstract: PURPOSE:To obtain the titled single substance pressure sensitive recording sheet for copying paper and the like, wherein a specified amount of pulp powder, whose weight averaged fiber length is limited is included in a homogeneously mixed liquid of microcapsules including a color former and a coloration agent, coloring stain is avoided, and recording and printing compatibility is improved. CONSTITUTION:The simple substance pressure sensitive recording sheet wherein the pulp powder, whose weight averaged fiber length (TAPPI standard T232, SU-68) is 20-80mu, is included in the homogeneously mixed liquid of the microcapsules including the color former and the coloration agent (e.g. activated clay and the like). The ratio is 40-200pts. of the pulp powder with respect to 100pts. of the microcapsules (weight; converted into the solid state component). The sheet is formed by applying said homogeneously mixed liquid including said pulp powder to a supporting body (paper, sythetic film, and the like).
Patent JP-H0942408-A (JP)
Title: Linear actuator
Inventor: YAMAGUCHI MIKIO
IPC: F16H25/22
Filed: 1995-07-28
Abstract: PROBLEM TO BE SOLVED: To ensure sufficient operating speed with a small motor by arranging a bearing for supporting a thrust load, a rotatable intermediate cylinder, a frictional plate, and a fixing intermediate seat in the action direction of a thrust load in series, and arranging one way clutch between the inner circumferential surface of the intermediate cylinder and the outer peripheral surface of a rotary shaft. SOLUTION: A rotary shaft 2 is rotated in a prescribed direction through a decelerator 9, a roller clutch 25 is not locked, the rotary shaft 2 is rotated in relation to an intermediate cylinder 22, the rotary shaft 2 is rotated in relation to the intermediate cylinder 22, a frictional plate 23, and an intermediate seat 24, and those existence is not resisted rotation of the rotary shaft 2. The roller clutch 25 is acted like a bearing, rotation of the intermediate shaft 22 is allowed, existence of the roller clutch 25 such as a one way clutch is not resisted in relation to rotation of the rotary shaft 2, and the rotary shaft 2 is smoothly rotated in a prescribed direction in association with normal rotation of a driving shaft.  A ball nut 14 screwed around the ball screw part 13 of the rotary shaft 2 is displaced in an axial direction, and an output shaft 17 is displaced opposing to a thrust load.
Patent JP-H0860989-A (JP)
Title: Tunnel construction
Inventor: TAJIMA KIYOAKI
IPC: E21D11/08
Filed: 1994-08-17
Abstract: PURPOSE: To reduce the friction losses of embedded members and to easily construct a tunnel construction using a small working space without providing any projecting part for anchorage by prestressing circumferentially compressed members using a segment. CONSTITUTION: During the fabrication of a segment 1, a compression steel 2 fitted with a nut 4 and a washer 5 is embedded near a threaded end. In that case, a bearing plate 6 for an opening 8 on the fixed side, and an anchoring plate 3 installed in an opening 7 on the compressed side are projected, and passed through and embedded in the segment, together with a sheath 11. After the assembly of the segment 1 is complete, a jack support 18 for a jack 10 is set between the rear wall of the opening 7 and the compression steel 2. Then a piston is expanded for pressing. After pressing of the steel 2 is finished, the steel 2 is anchored to the anchoring plate 3 and to the bearing plate 6 by means of the washer 5 and the nut 4 and the jack 10 is removed, so that the entire tunnel wall is prestressed.  Thus only compression members are partially used, so the amount of the compression members can be reduced.
Patent JP-H0481523-A (JP)
Title: Turbine housing for turbocharger and manufacture thereof
Inventor: SUGIURA YASUO
IPC: F02B39/00
Filed: 1990-07-20
Abstract: PURPOSE:To prevent oxides from dropping by forming a turbine housing for turbocharger out of a cast a iron material, and forming an alloy layer with an abundance of heat-resistant alloy elements compared to the cast iron at least on an inner surface of a bypass passage inside the housing CONSTITUTION:Cores 24, 25 are fitted to each other in a specified form, and set in a lower die 23. After covering an upper die 2, a shape of a cavity 26 in a mold 21 corresponds to a shape of a turbine housing 3. Metal powder is applied as a thin film over whole of peripheral surface of a projection 24c of the core 24, to form a metal powder layer 27. The metal powder is composed of alloy containing Ni as a main ingredient, Cr, and Si, and a melting temperature thereof is approximately 1000 deg.C. The molten metal component having Ni as a main ingredient reacts with cast iron in a surface layer in the vicinity of a bypass passage 11 of the housing 3, to form a heat-resistant alloy layer C having a large amount of Ni. Oxides are hardly removed of the surface of an oxidized area 37 of the metal layer C.
Patent JP-H1140969-A (JP)
Title: Cooling structure for electronic device
Inventor: OKONOGI SATOSHI
IPC: H05K7/20
Filed: 1997-07-18
Abstract: PROBLEM TO BE SOLVED: To efficiently cool plural heaters mounted in the inside of an electronic device. SOLUTION: An air duct is provided in the inside of an electronic device, and opening/closing plates 6b, 6c corresponding to heaters 3b, 3c respectively are provided to the air duct. In the case that heat from the heater 3 reaches the heaters 3b, 3c by a fan 2, temperature sensors 4a, 4b detect the temperature rise. In the case that sensors discriminate it that the temperature exceeds the permissible level of the heaters 3b, 3c, and opening/closing plates 6a, 6b, 6c are open to take external air inside to cool the heaters 3c, 3b. The angle of the opening/closing plates 6a, 6b, 6c is automatically adjusted, and a discrimination circuit that discriminates the excess of the permissible temperature is used to cool the heater more efficiently.
Patent JP-H0479050-A (JP)
Title: Optical pickup device for magneto-optical recording and reproducing device
Inventor: YOKOTA TAIZO
IPC: G11B11/10
Filed: 1990-07-20
Abstract: PURPOSE:To simplify the adjustment of a light receiving system by integrating a light emitting means, first diffracting element, servo system photodetecting means, and reproducing system photodetecting means. CONSTITUTION:This device is equipped with a semiconductor laser 1, first diffracting element to diffract reflected light from a magneto-optical disk 5 and to guide a + or -1st-order diffracted light beam to the photodetecting means, third diffracting element 3, objective lens 4 and second diffracting element 6. The optical pickup device is equipped with light receiving elements 7 and 8 for tracking error and focusing error and light receiving elements 11 and 12, for which polarizing plates 9 and 10 are respectively arranged on the incidental faces, for differentially detecting magneto-optical signal as light receiving systems. Then, the semiconductor laser 1, first diffracting element 2, second diffracting element 6, light receiving elements 7 and 8, and light receiving elements 11 and 12 are housed in an LD-PD unit package 13 as an enclosure. Thus, the adjustment is simplified.
Patent JP-S6171336-A (JP)
Title: Grain-size measuring apparatus
Inventor: HATA KENJI
IPC: G01N15/02
Filed: 1984-09-14
Abstract: PURPOSE:To make it possible to automate grain size measurement, by providing a sealing means, which prevents leaking of a sample from a gap between the peripheral part of each light tansmitting window and each opening part, and making it possible to vary the interval between two light transmitting windows. CONSTITUTION:A light transmitting window 6a is sealed by an optically transparent solid body. Therefore, a sample passing a path 5a does not enter into a tube body 6c. The light transmitting window 6a is formed at an opening part 8. An O ring 8a is coupled into a gap between the peripheral part of the window and the opening part 8 so that the sample does not leak. The interval between the light transmitting windows 6a and 16 can be adjusted by moving a parallel-luminous-flux generating means 6 back and forth by a driving means 13. The distance between both light transmitting windows 6a and 16 can be read by a micro-dial gage 15. In this constitution, the grain measurement can be simply automated.
Patent JP-S5894202-A (JP)
Title: Microwave circuit
Inventor: ISHIHARA OSAMU
IPC: H01P1/00
Filed: 1981-11-28
Abstract: PURPOSE:To eliminate the coupling between microwave circuits having the triplet structures and to realize the miniaturization and high density for the microwave circuit, by providing a train of through holes between two adjacent circuit conductors and connecting the upper and lower earth conductors by means of these through holes. CONSTITUTION:A train of metallized through holes 6 is provided between the adjacent circuit conductors 51 and 52 through dielectric matters 3 and 4. Then the upper and lower earth conductors 1 and 2 are connected via the holes 6. Thus an interaction is eliminated between the conductors 51 and 52. As a result, it is possible to put the conductors 51 and 52 close to each other. Thus a microwave circuit is totally miniaturized with high density.
Patent JP-H1133134-A (JP)
Title: Fire extinguishing device
Inventor: MATSUMOTO SHUJI
IPC: A62C35/20
Filed: 1997-07-18
Abstract: PROBLEM TO BE SOLVED: To reduce the cost of a fire extinguishing device by lightening the weight of the door of the device, and to make winding/rewinding of the hose lighter and easier. SOLUTION: This device has a hose reel 5 which is vertically set inside a boxy case, a hose 6 with a nozzle 7 wound up and stored in the hose reel 5, and a swivel piping mechanism for horizontally rotating the hose reel 5 from the door opening to a position where the hose reel 5 is exposed outside so that the hose reel 5 can be supported there. The swivel piping mechanism supports the pipe on the hose reel side as against the fixed side to freely oscillate at least two steps in the horizontal direction.  The swivel piping mechanism consists of, for example, a fixed pipe 8 vertically fixed standing up inside the boxy case, a first swivel pipe 10 attached to the top of the fixed pipe 8 rotatable in the horizontal direction by way of a rotation joint 9, and a second swivel pipe 12 connected to the drum rotating part of the hose reel 5 vertically set standing down from a rotation joint 11 attached to the top of the first swivel pipe 10.
Patent JP-H0750612-A (JP)
Title: Synchronizer for receiver for spread spectrum communication
Inventor: SUZUKI YASUO
IPC: H04B1/707
Filed: 1993-08-04
Abstract: PURPOSE:To easily hold synchronization by providing an envelope detector, a peak position detector and a peak position comparator and shifting the phase of sampling clocks in a direction for minimizing the difference of both compared in the comparator. CONSTITUTION:In a normal mode, a time window controller 32 is operated and detection is performed for spectrum inverse spreaded signals passed through a time window in the envelope detector 36. That is, since the time window is applied for the detection of a peak position in the peak position detector 37 as well, the influence of noise is hardly received. At the time, the difference between the output of the detector 37 and the center position of the time window (the storage value of a time window center position memory 40) is obtained in the peak position comparator 43 and the synchronization is held so as to minimize the difference. That is, the phase of the sampling clocks generated by an oscillator 41 and an m-frequency divider 42 is shifted by shift signals supplied from an up-down counter 44 and the synchronization of the time window is held.