baber/WOPTO huggingface dataset:
Patent JP-H04102280-A (JP)
Title: Floating type magnetic head slider
Inventor: NORO TAKASHI
IPC: G11B21/21
Filed: 1990-08-17
Abstract: PURPOSE:To suppress an attractive force when the revolution of a magnetic disk is started and to reduce a damage accident by forming the width of the center part of an air bearing plane narrower than that of another part. CONSTITUTION:The corner parts 10A, 10B, and 11A, 11B of the center parts of the air bearing planes 2A, 2B are cut by an ion etching method, and the width of the apex parts of the air bearing planes 2A, 2B are reduced. Thereby, a part coming in contact with the magnetic disk can be narrowed, and the attractive force when the revolution of the magnetic disk is started can be suppressed, and the damage of a magnetic head slider can be prevented occurring.
Patent JP-S6276237-A (JP)
Title: Method of manufacturing electron gun structure
Inventor: MASATOKI TAMIJI
IPC: H01J9/18
Filed: 1985-09-30
Abstract: PURPOSE:To enable easy centering and to prevent axial deviation between metal electrodes by constructing an electron gun structure through a process of welding together multiple sets of jointed electrodes each of which is made of at least two metal electrodes brazed to each other. CONSTITUTION:A ceramic spacer 13, on both end faces of which electrically conductive layers are metalized, is interposed and brazed by means of silver solver or other between 1st grid G1 and 2nd grid G2. The member 31 of 3rd grid G3 is similarly brazed to this assembly via a spacer 14. Whilst the member 32 of 3rd grid G3 and 4th grid G4 are similarly brazed via a spacer 15. Then the members 31 and 32 of the 3rd grid G3 are spot welded to form an electron gun structure. In this procedure, centering can be made easy and assembling accuracy is improved by selecting an appropriate number of electrodes which are to be joined by brazing and making them a single structure.
Patent JP-2000049396-A (JP)
Title: Laminated piezoelectric actuator
Inventor: ASHIDA KOKI
IPC: H01L41/083
Filed: 1998-07-31
Abstract: PROBLEM TO BE SOLVED: To provide a laminated piezoelectric actuator, wherein the stress concentration on the interface between an inactive block and laminate can be sufficiently relaxed. SOLUTION: In the laminated actuator comprising a laminate 1 of alternately laminated a plurality of piezoelectric plates 11 and a plurality of electrodes 12, 14, and ceramic inactive blocks 18 respectively bonded to the upper and lower sides of the laminate 1 with electrodes 14 mutually electrically connected, annular slits 29 are formed in the peripheries of the inactive blocks 18, and the sectional area S1 of the reduced diameter 18a of the inactive block, at which the slit 29 is formed, is made 25-50% of the area S2 of the electrode 12.
Patent JP-H0768140-A (JP)
Title: Multilayer fine porous hollow fiber membrane
Inventor: NAGO KUNIYA
IPC: B01D71/70
Filed: 1993-09-01
Abstract: PURPOSE:To produce a fine porous hollow fiber membrane showing a large initial permeation amt. of water and little reduction of permeation amt. of water when used for a long time. CONSTITUTION:This membrane consists of 20-80wt.% polyolefin and 80-20wt.% synthetic resin particles having higher softening or decomposition temp. than the molding temp. of polyolefin and 0.01-5mum average particle diameter, for example, silicone resin particles. The membrane consists of fine porous layers having a mesh-like structure containing continuous holes with <5mum max. porous diameter in which molecules are oriented by stretching. Two layers having different average particle diameters of synthetic resin particles and average pore diameters of continuous holes from each other are laminated to constitute the mulilayer fine porous hollow fiber membrane. The layer having the larger average particle diameter of synthetic resin particles and larger average diameter of holes is disposed in the outer surface, while the layer having smaller average particle diameter and average diameter is inside.
Patent JP-H1060332-A (JP)
Title: Production of water-base ink for ink jet recording
Inventor: AIDA KENJI
IPC: C09D11/106
Filed: 1996-08-19
Abstract: PROBLEM TO BE SOLVED: To provide a process for producing a water-base ink for ink jet recording wherein the ink dispersion step is easy to control by regulating the cumulative power applied per unit weight to be in a specified range. SOLUTION: In dispersing a pigment dispersion prepared by predispersing at least a pigment and a polymeric dispersant in an aqueous medium in a sand mill, the cumulative power applied to the sand mill per unit weight is adjusted to 0.1-10kWh/kg. The polymeric dispersant preferably comprises a copolymer of (meth)acrylic acid derivatives in particular. The (meth)acrylic acid derivatives preferably include monomers of formula I (wherein R1 and R2 are each H or lower alkyl; m1 is 0 to 2; AO is a 2-3C oxyalkylene; n is 1 to 300; and X is H or lower alkyl) and monomers (including acid anhydrides) of formula II [wherein R3 , R4 and R5 are each H, lower alkyl or (CH2 )m2 C00M2 ; M1 and M2 are each H, an alkali (alkaline earth) metal, ammonium or amine; and m, is 0 to 2] in particular.
Patent JP-H0882198-A (JP)
Title: Segment feeding device
Inventor: WAKECHIGAI TAKASHI
IPC: E21D11/40
Filed: 1994-09-12
Abstract: PURPOSE: To shorten the waiting time of a truck by a method wherein a switching point is arranged on a moving plate and rails are juxtaposed, a hoist beam is provided in a switching manner above it, and segments on the truck are alternately unloaded. CONSTITUTION: A rail 21 branched in a fork-form state is arranged on a moving plate 16 drawn by a tunnel excavator 1 and a hoist beam 29 having a hoist 33 is arranged in a switching manner above the fork-form rail. A truck 9a carrying the conveyed segment 3 is retracted into a rail on one side, the segments are unloaded on the erector 2 side by a hoist beam 29, and during unloading, a truck 9b loaded with the segments is retracted into a rail on the other side. In following, alternate unloading is effected in a similar manner described above. This constitution shortens the waiting time of a truck and improves working efficiency.
Patent JP-2001044663-A (JP)
Title: Cable carrier structure
Inventor: NAGAMASA ISAMU
IPC: H05K7/00
Filed: 1999-07-30
Abstract: PROBLEM TO BE SOLVED: To obtain a cable carrier structure which can surely hold a cable with a simple constitution without providing any slide rail, etc., nor lowering the mounting efficiency of a unit in an enclosure. SOLUTION: A cable carrier structure holds cables 15 provided inside a housing and led out from a unit 13 which is housed in an enclosure 12 in a state where the unit 13 can be pulled out of the enclosure 12. The structure is constituted of a cable holding section 16 provided on the internal wall of the enclosure 12, a cable holding section 13d provided on the external surface of the unit 13, and a plurality of cable carriers 14 which are formed in bar-like states and fix parts of the cables 15 between the holding section 16 of the enclosure 12 and holding section 13b of the unit 13 to their end sections. The structure is also constituted of a plurality of cylindrical cable carrier housing sections 18 which are extended over the unit 13 in parallel with the puling-out direction of the unit 13 and respectively hold the cable carriers 14 in slidable states.
Patent JP-H0381592-A (JP)
Title: Two-cylinder rotary compressor
Inventor: KAWASAKI KATSUYUKI
IPC: F04C29/12
Filed: 1989-08-24
Abstract: PURPOSE:To increase the pressure resistance strength of an area between the insertion edges of both of intake pipes for making a compression element continuous to an accumulator by connecting the aforesaid two pipes to bearings at the outside of a cylinder. CONSTITUTION:The upper part of a sealed vessel 1 is internally provided with an electric drive element 2 and the lower part thereof is equipped with two cylinders 6 and 7 horizontally separated with a division plate 5. As the lower ends of intake pipes 12 and 13 for making a compression element 3 continuous to an accumulator 4, are respectively connected outside bearings 16 and 17, a distance between the insertion edges of the intake pipes 12 and 13 becomes long. According to the aforesaid construction, the pressure resistance strength of the sealed vessel 1 increases and the durability of the bearings 16 and 17 is also improved.
Patent JP-H08220578-A (JP)
Title: Manufacture of polarization inversion area, and light wavelength converting element utilizing that and its manufacture
Inventor: MIZUUCHI KIMINORI
IPC: G02B6/13
Filed: 1995-08-25
Abstract: PURPOSE: To form a short cycle and deep polarization inversion area along a large area of substrate, in order to manufacture a light wavelength converting element having a high efficiency and a short wavelength. CONSTITUTION: A tandem electrode 2 is formed on the front surface of a substrate 1, while a plane electrode 3 is formed on the rear surface. And a DC voltage superposing a pulse voltage is applied to the electrode: by using a DC power source 4 and a pulse power source 5, so as to apply a DC electric field superposing a pulse electric field to the substrate 1. As a result, a cycle form of polarization inversion area can be formed by applying a small pulse field. Since the evenness level of the applied electric field in the substrate surface is high, a polarization invrsion area having an even cycle form can be formed. Or in another way, after the tandem electrode 2 is covered by an insulating film, a pulse voltage is applied to the electrode by using the pulse power source 5, so as to apply a pulse voltage to the substrate 1.  Consequently, the movement of a free charge on the crystal surface is suppressed to retrain the expansion of the polarization inversion in the lateral direction, and an even and a short cycle of polarization inversion structure can be formed.
Patent JP-S59110422-A (JP)
Title: Preventive device for wind-loosening of coil
Inventor: IWANUMA KATSUHIKO
IPC: B21C47/24
Filed: 1982-12-14
Abstract: PURPOSE:To prevent exactly wind-loosening of a coil by constituting so that a magnet attracted to the coil end can be attached and detached mechanically, after winding and before rewinding the coil. CONSTITUTION:When installing a magnet 12 to a coil end 11 of a wound coil 10, a movable frame 23 is brought close to the coil 10 by a moving cylinder device 25 of a magnet installing device 20, and the end 11 is pressed against the coil 10 with a holder 34. Subsequently, the magnet 12 is extruded by its thickness portion by an extruding cylinder device 28, attracted to the end 11, the frame 23 is moved backward, and an installation of the magnet is completed. The coil 10 to which the magnet 12 is installed can be drawn out of a reel. Also, when removing this installed magnet 12, the end 11 and the magnet 12 are stopped at a position opposed to a magnet removing device 40, and a movable frame 43 is brought close to the coil 10 by a moving cylinder device 45. In this state, the magnet 12 is removed by closing a pawl part 50 of an opening and closing arm 51 by a driving cylinder device 54, also it is pushed into a containing cylinder 47, the frame 43 is moved backward by the device 45, and removal of the magnet is completed.
Patent JP-2000044739-A (JP)
Title: Novel polyethylene composition
Inventor: TAKAHASHI MAMORU
IPC: C08F4/659
Filed: 1998-07-31
Abstract: PROBLEM TO BE SOLVED: To obtain a novel polyethylene composition having an excellent moldability from which composition a film having an excellent transparency and an excellent mechanical strength can be produced. SOLUTION: This composition comprises [I-1] 100 pts.wt. of an ethylene/α- olefin copolymer [A] and [II] 0.001-5 pts.wt. of a crystalline nucleating agent. For the copolymer, (a-i) the density is 0.880-0.970 g/cm3, (a-ii) the MFR is 0.02-200 g/10 min, (a-iii) W and (d) satisfy W<80×exp(-100(d-0.88))+0.1 if MFR<=10 g/10 min and W<80×(MFR-9)0.26×exp(-100(d-0.88))+0.1 if MFR>10 g/10 min, (a-iv)Tm and (d) determined by a differential scanning calorimeter satisfy Tm<400 d-248, (a-v)MT and MFR satisfy 9.0 MFR-0.65>MT>2.2 MFR-0.84, (a-vi) the activation energy ((Ea)×104), the number of carbon (C) of the α-olefin in the copolymer and the mol number (x) of the α-olefin in the copolymer satisfy the relations:  (0.039 Ln(C-2)+0.0096)x+2.87<Ea<=(0.039 Ln(C-2)+0.1660)x+2.87 if C<=10 and 0.44x+2.87<=Ea if C>=11 and (a-vii) the ratio of Mw to Mn, Mw/Mn, satisfies 2.2<Mw/Mn<3.5.
Patent JP-S6278964-A (JP)
Title: Thermal recording device
Inventor: ANDO TOMIO
IPC: B41J2/32
Filed: 1985-10-02
Abstract: PURPOSE:To use a low-output heat-ray generator and also to reduce the manufacture cost without any decrease in recording speed by providing plural heat-ray generators and scanning a recording medium with plural heat beams which have time deviation in exactly the same way. CONSTITUTION:Two heat-ray generators, e.g., a main heat-ray generator 10 which emits a main heat beam 14 and a subordinate heat-ray generator 11 which emits a following-up heat beam 15 are arranged in a thermal recording device. then, their heat-beam projection ends are arranged by having different elevation angles to the upper mirror surface of a rotary polygon mirror 12. The main heat-beam generator 10 and subordinate heat-beam generator 11 output the low-output main heat beam 14 and following-up heat beam 15 intermittently according to recording information. A convergent optical system 13 is provided slantingly above the rotary polygon mirror 12 and the same part on a recording medium 16 is scanned successively with the plural heat beams emitted by the plural heat-ray generators, so the irradiation time of a heat beam per spot is extended effectively without any decrease in recording speed.
Patent JP-S6461873-A (JP)
Title: Picture memory
Inventor: YAMATARI KIMIYA
IPC: G06T1/60
Filed: 1987-09-02
Abstract: PURPOSE:To perform the control of a matrix memory with a small number of parts and to process various types of data by providing a writing means which can write the data equal to a single row or optional plural rows of the input picture data and a selection means which selects an element of a single bit for each word of each row of the stored picture data. CONSTITUTION:A picture memory contains a D type FF 1100-1115 which are arranged in a grid form to form a memory matrix which stores the picture information in the form of the binary of multi-level electric signals. An input bus 101 and the input control lines 130-133 are connected to the FF 1100-1115 and a decoder 111 is connected to the lines 130-133 respectively. Thus the same row data on the picture signal of an optional single row or the picture signals of plural rows can be written. At the same time, the selectors 112-115, the latches 116 and 117, and an output buffer 118 are connected to the output sides of the FF 1100-1115. Then a single individual element is designated for each row of the picture signals stored in the FF 1100-1115 and a train of the selected picture signal elements are read out.
Patent JP-H0382071-A (JP)
Title: Manufacture of semiconductor device
Inventor: KUDO CHIAKI
IPC: H01L21/8242
Filed: 1989-08-24
Abstract: PURPOSE:To enhance connecting properties of a node electrode to a source and to obtain a semiconductor device having satisfactory element performance by implanting second conductivity type ions from an oblique direction to the sidewall of a first groove, then implanting second conductivity type ions at an angle of substantially 0 deg. to the bottom of the sidewall of the groove, depositing an insulating film, and then forming a second groove remaining only on the sidewall of the groove. CONSTITUTION:A first groove 5 is formed on a first conductivity type semiconductor substrate 1, second conductivity type ions 30 are implanted from an oblique direction to the normal of the surface of the substrate 1 to the sidewall of the groove 5, and the second conductivity type ions 31 are implanted at an angle of substantially 0 deg. to the bottom of the sidewall of the groove 5. Thereafter, an insulating film 6 is deposited on the substrate 1, the film 6 is etched by etching having strong anisotropy, and an insulating film 6 remains only on the sidewall of the groove 5. The exposed part of the substrate in the groove 5 is further deeply etched to form a second groove 8, second conductivity type ions 17 are implanted to the sidewall of the groove 8, and impurity layers 27, 28 of the sidewalls of the grooves 5, 8 are continuously formed.
Patent JP-H0751029-A (JP)
Title: Liquid food
Inventor: MORI HIDEKI
IPC: A23L23/00
Filed: 1993-08-09
Abstract: PURPOSE:To obtain a liquid food, e.g. soup and stew having enhanced body and milky taste even at a low content of oil and fat and free from stickiness and oiliness even at high content of oil and fat. CONSTITUTION:A liquid food comprises water, salt and a seasoning component consisting of at least one selected from a meat extract, a vegetable extract and a protein hydrolysate. The liquid food further contains 0.5-5wt.% of oil and fat dispersed in the form of oil drops of <=1mum in particle diameter based on the total amount.
Patent JP-S60109859-A (JP)
Title: Printing head
Inventor: SAKAIDA ATSUO
IPC: B41J2/275
Filed: 1983-11-19
Abstract: PURPOSE:To make the assembly and maintenance of a printing head easier by supporting pivotally armatures between an inner yoke and an outer yoke wound with solenoid coil in a wire dot printer. CONSTITUTION:Many outer yokes 1c wound with solenoid coils 2 are arranged annularly on the periphery of an inner yoke 1b, and resinous armatures 4 are pivotally supported at rocking support points 3d. L-shaped printing wires 7 are elastically supported between an elastic material 5 above the armatures 4 and the front frame 6. When the solenoids 2 are excited, the armature 5 is turned, the elastic piece 5d of the elastic material 5 is driven, and printing is made by the wires 7. The needs for brazing the printing wires, armatures, and plate spring can thus be eliminated, the structure of the head can be simplified, and the assembly and maintenance of the head can be made easier. Compact printing head can be obtained.
Patent JP-H0858149-A (JP)
Title: Image formation device
Inventor: MAEDA MASATAKA
IPC: G03G15/05
Filed: 1994-08-18
Abstract: PURPOSE: To control the passage of toner flowing through an aperture and the shutoff of the toner positively, and thereby achieve a satisfactory control at a low voltage drive to obtain a sharp image contrast by realizing a difference in control voltage between the upstream side and the downstream side of a control electrode, in an image formation device using an aperture electrode for controlling a toner flow. CONSTITUTION: A voltage applied to an electrode 7b formed on the downstream side of a toner transport direction of an aperture 6 is made higher than a voltage applied to an electrode 7a formed on the upstream side, Consequently, the toner is stemmed tightly using the electrode 7b on the downstream side, while the toner is allowed to stick faintly using the electrode 7a on the upstream side. Thus the toner residing near the entrance of the aperture 6 is pushed out into the aperture 6 by the toner supplied later, and the toner flow is controlled by a control electric field effect in the aperture 6.
Patent JP-H0270028-A (JP)
Title: Manufacture of ta or nb
Inventor: MIYAZAKI HIDEO
IPC: C22B34/20
Filed: 1988-09-02
Abstract: PURPOSE:To manufacture Ta or Nb powder having coarse grainsize and low oxygen content by adding Ta powder or Nb powder to K2TaF7 or K2NbF7 as a starting material and reducing it by Na or K. CONSTITUTION:Ta or Nb powder is mixed to K2TaF7 or K2TaF7 as a starting material and the mixture is charged to a reducing vessel 1 from a hopper 3 together with NaCl. The inside of the vessel 1 is evacuated 8, to which Ar or the like is introduced. An electric furnace 2 is electrified to melt K2TaF7- NaCl; it is furthermore heated by rotating a stirrer 5; on the other hand, metallic Na or K is charged to a melting furnace 4 and is melted. The liquid Na is gradually dropped and is brought into reaction with the above melt, which is furthermore heated to perfect the nuclear growth of the Ta powder. A valve 6 is opened to extract a formed mixed salt of molten shape contg. Ti powder into an acceptor 7. The mixed salt is washed by boiling water to rinse NaCl, NaF and KF and to obtain coarse Ta powder. The powder is then washed by a diluted acid and is water-washed to dry. In this way, Ta or Nb powder having coarse grainsize and small specific surface area can be obtd. in good yield.
Patent JP-H1149718-A (JP)
Title: New cyclopentanone derivative and its use
Inventor: SAITO SEIICHI
IPC: A61P25/00
Filed: 1997-07-30
Abstract: PROBLEM TO BE SOLVED: To obtain the subject new derivative useful as a therapeutic agent for the central neuropathy or peripheral neuropathy. SOLUTION: This derivative is represented by formula I (A-ring has one double bond conjugated with oxo group; X is O, S or the like; Y is a 1-6C aliphatic hydrocarbon group or the like; Z1 to Z3 are each carboxyl or the like), e. g. 5-[(2R)-(2-acetylamino-2carboxy)ethylthio] methyl-2-cyclopenten-1-ol. The derivative is obtained by carrying out the condensation reaction of, e.g. a derivative represented by formula II (U is an eliminable group; Z1' to Z3' are each carboxyl or the like) with a compound represented by formula III (X2 is S or the like; Y' is a 1-6C aliphatic hydrocarbon group or the like) [e.g. (2R)-2-acetylamino-2-carboxyethanethiol] in a molar amount of preferable 1-2 times based on the derivative represented by formula II under basic conditions in a molar amount of 0.1-20 times based on the derivative represented by formula II at 0-100 deg.C for 0.1-200 hr and, as necessary, removing protecting groups.
Patent JP-H0384005-A (JP)
Title: Production of catalyst component for olefin polymerization
Inventor: YASHIRO TERUO
IPC: C08F4/654
Filed: 1989-08-28
Abstract: PURPOSE:To obtain the subject catalyst giving polymer containing a slight low molecular weight component by bringing a solid containing metallic Mg, hydrocarbon halide and a specific compound into contact with halogen-containing alcohol and bringing into contact with Ti compound and solid hydrocarbon halide. CONSTITUTION:Metallic magnesium is brought into contact with hydrocarbon halide expressed by the formula RX (R is 1-20C alkyl, aryl or cycloalkyl; X is halogen) and a compound expressed by the formula (X<1> is H, halogen or 1-20C hydrocarbon, M is boron, carbon, aluminum, silicon or phosphorus; R<1> is 1-20C hydrocarbon; (m) is valence of M; m>n>=0) to prepare magnesium- containing solid and resultant solid is brought into contact with halogen- containing alcohol, then resultant compound is brought into contact with tita nium compound and solid hydrocarbon halide to afford the objective catalyst component for olefin polymerization.