baber/WOPTO huggingface dataset:
Patent JP-H04155978-A (JP)
Title: Laser diode pumping solid state laser
Inventor: OKAZAKI YOJI
IPC: H01S3/108
Filed: 1990-10-19
Abstract: PURPOSE:To efficiently obtain a short wavelength laser beam having high intensity, to realize a stable single longitudinal mode and to form in a small size by forming one end face of a solid state laser rod in a flat shape, disposing a bulk crystal of a flat nonlinear type optical material on the other end face side, and using the one end face of the crystal and the one end face of the rod as resonator mirror surfaces for resonating a solid laser oscillation beam. CONSTITUTION:A laser diode pumping solid state laser is formed of a semiconductor laser 11 for generating a laser beam 10, an Nd:YVO4 rod 14 in which both end faces 12a, 12b are flatly polished, and a bulk crystal 13 of a nonlinear type optical material in which one end face 13a, the other end face 13b are flatly polished. A laser beam 16 is confined between the faces 12a and 13a to generate a laser oscillation. Here, since the face 13a of the crystal 13 is covered with a coating 22, the beam 16 incident to a KTB crystal is efficiently converted to a second harmonic wave 17, and emitted from the crystal 13. Since the faces 12a, 13a are flatly formed, a substantially complete single longitudinal mode can be realized.
Patent JP-H01125779-A (JP)
Title: Tape cartridge
Inventor: NIIMI HIDEAKI
IPC: G11B23/087
Filed: 1987-11-11
Abstract: PURPOSE:To prevent a recording characteristic from being deteriorated due to corrosion by molding a covering member which covers the part of a tape shape recording medium being hung on a tape supporting part provided on the inside of a tape ejection port adjacently by integrating with a front cover. CONSTITUTION:The covering member 18 which covers the part of the tape shape recording medium 5 being hung on the tape supporting part 7 provided on the inside of the tape ejection port 6 adjacently is provided integrally with the front cover 2. Furthermore, an inclined guide plane 19 is provided on a side confronting with a magnetic tape 5 at the lower end of the covering member 18, and it functions to press the magnetic tape to the tape supporting part 7 side even when the tape slacks a little. Also, a soft elastic body 22 is brought into contact directly with the magnetic tape 5 and fixed on the side confronting with the magnetic tape 5 hung on the tape supporting part 7. Thereby, it is possible to prevent a magnetic characteristic from being deteriorated due to the corrosion.
Patent JP-H01127028-A (JP)
Title: Apparatus for denitridation of combustion exhaust gas
Inventor: MURAKAMI NOBUAKI
IPC: B01D53/86
Filed: 1987-11-11
Abstract: PURPOSE:To efficiently denitrify, by separating with a multitude of porous partitions; carrying an oxidation catalyst in a down-stream part of the partitions; and placing a denitridation reaction part kept the inside at 450-900 deg.C; and installing means of injection of NH3 and an reductive material in the up-stream part of the reaction part. CONSTITUTION:NH3 and a reductive gas such as H2, CO, CH4 are injected from a line 2 and a line 3, respectively, to an exhaust gas in a combustion exhaust gas line 1 in a low temp. range (150-350 deg.C), and then the resulting gas mixture is introduced into a denitridation reaction part kept at 450-900 deg.C, and NOx in the gas is reduced to N2. After then, remaining reductive material is oxidized by an oxidation catalyst 7 carried by a down-stream part of a porous partition 4a and exhausted as H2O, CO2 from clean gas flowing line 8.
Patent JP-H03146641-A (JP)
Title: Duplex stainless cast steel for manufacturing apparatus for wet type phosphoric acid
Inventor: MATSUKURA KIYOSHI
IPC: C22C38/00
Filed: 1989-11-01
Abstract: PURPOSE:To obtain the duplex stainless cast steel having excellent corrosion resistance and erosion resistance to phospho-gypsum slurry advantageously from the viewpoint of economicity by forming it from the compsn. contg. each prescribed amt. of C, Si, Mn, P, S, Ni, Cr, Mo, Cu and N and in which the total content of Cr and Mo is regulated. CONSTITUTION:The above stainless cast steel contains, by weight, <=0.08% C, <=2.0% Si, <=2.0% Mn, <=0.04% P, <=0.03% S, 5 to 10% Ni, 28 to 36% Cr, 2 to 5% Mo, 0.5 to 3.0% Cu, 0.10 to 0.30% N and the balance substantial Fe. In this case, the formula of Cr(%)+2.5XMo(%)=>=38(%) shall be satisfied. Then, in addition to the above characteristics, the stainless cast steel has toughness and is inexpensive compared to an Ni-base high alloy.
Patent JP-H01125685-A (JP)
Title: Automatic document feeding device
Inventor: SUZUKI NORIHIRO
IPC: G06K13/02
Filed: 1987-11-11
Abstract: PURPOSE:To simplify maintenance work and increase its safety without affecting fitting accuracy by making the whole title device turnable for a base, and raising it at >=90 deg. during the maintenance work. CONSTITUTION:The automatic feeding device consists of an upper paper feeding part, lower paper feeding part, and the three parts of a base 31, and they are separately turnable at a common fulcrum 32. At the part of the fulcrum 32, a convex part 24a of an upper plate 24 is incorpolated at the section of an upper surface 31a of the base 31 while a torque is applied to two U-shaped torsion bars 23. The whole device converts an image scanner 20 against the spring force of the torsion bar 23, and is fixed with a screw 27. At the time of the maintenance work, since the whole device can rise at >=90 deg., and the spring force of the torsion bar 23 works, there is no danger for the device to fall on the image scanner side, and a worker can work without fear, and the maintenance work can be facilitated.
Patent JP-H09123764-A (JP)
Title: Door panel for cab of industrial vehicle
Inventor: KATO SHINICHI
IPC: B66F9/075
Filed: 1995-10-31
Abstract: PROBLEM TO BE SOLVED: To reduce portions where the viewing field of an operator is blocked, while preventing strength from decreasing, by placing not a panel that increases in width but a long frame bar and a pillar, above the front. SOLUTION: A cab door panel 1 has a panel frame 12, and the panel frame 12 is formed by bonding press-molded outer and inner members together in such a way that they are opposed to each other so that the panel frame becomes hollow. A frame bar 18 is in the form of a long pipe, curved upwards from the top of the front end of the lower plate 13 of the panel frame 12 along the outer shape of a door. A triangular closing window 20 is mounted in a space formed by the lower plate 13 of the panel frame 12, the frame bar 18, and a pillar 19. A rectangular closing window 21 that is freely opened and closed is mounted in a space formed by the lower plate 13, an upright plate 14, the frame bar 18, and the pillar 19. A trapezoidal closing window 22 consisting only of a transparent body 22a such as glass is mounted also in an opening 15.
Patent JP-H01127281-A (JP)
Title: Screw driver
Inventor: OKUBO MASAYUKI
IPC: B25B23/14
Filed: 1987-11-10
Abstract: PURPOSE: To substantially improve torque accuracy by controlling a power applied to a driver unit and a drive pulse applied to a power transistor in PWS control. CONSTITUTION: A current passing through a driver motor 15 is read by a current detector 14, a current detection conversion circuit 8, and an A/D converter 5. The resistance of the motor 15 is detected by a detection circuit 7 and is read as a speed factor by a converter 5. A chopper type power source 4 and a power transistor 13 are controlled in PWM by a CPU 1. When a change caused by the seating of a screw on a work is detected in detection values of the detection circuit 7 and the current detector 14, the CPU 1 gives a braking command to apply a reverse braking force to the motor 15 and limits a current for a predetermined period. Then, the rotation of the motor 15 is gradually increased to fasten the screw at setting torque without rotational inertia.
Patent JP-S62143014-A (JP)
Title: Light beam scanner
Inventor: ITAKURA TORU
IPC: H04N1/113
Filed: 1985-12-17
Abstract: PURPOSE:To execute a large quantity of scan processing in a short time by making plural light beams incident on an optical deflector so as each light beam scans on each different scanning surface, and providing a scan use optical system on an optical path of each beam, respectively. CONSTITUTION:In a recording device having two scanning systems of a light beam, a magazine 9 for containing plural recording sheets is loaded. The recording sheet which has been contained in the magazine 9 is attracted by an attracting means 10 which has been provided in the device and taken out one sheet each, and the first recording sheet 8A which is scanned by the first light beam 2A is carried in the direction as indicated with a full line, and carried to a scanning position by the first light beam 2A. Also, the second recording sheet 8B which is scanned by the second light beam 2B is carried in the direction as indicated with a broken line, switched back once, and thereafter, carried to a scanning position by the second light beam 2B. In this way, a large quantity of scan processing can be executed in a short time.
Patent JP-H0597769-A (JP)
Title: Condensed ring-containing compound and its production
Inventor: MATSUMOTO MITSUO
IPC: C07C67/313
Filed: 1991-10-02
Abstract: PURPOSE:To provide a new compound useful as a raw material for polymers having excellent characteristics. CONSTITUTION:A compound of formula I ((n) is 0-2; R1, R2 are H, saturated hydrocarbon; R3 is formyl, hydroxymethyl). For example, 5-hydroxymethylbicyclo [2,2,1]heptane-2,3-dicarboxylic acid. The compound of formula I is obtained by subjecting a compound of formula II, carbon monoxide and hydrogen to a hydroformylation reaction in the coexistence of a noble metal catalyst (e.g. rhodium oxide) and preferably a trisubstituted phosphine or trisubstituted phosphite in a solvent (e.g. methanol) at 60-160 deg.C. Polymers obtained through the compound of formula I have reduced polymerization contraction and have good adhesivity to other raw materials. Good moisture absorbability and dyeability are given to the polymeric compound by the acetalation reaction of the polymeric compound.
Patent JP-H08144993-A (JP)
Title: Capacity control fir turbo compressor
Inventor: SAKAI HARUKI
IPC: F04D27/00
Filed: 1994-11-17
Abstract: PURPOSE: To save energy largely without providing a receiver tank by combining wind release control and non-load/load control in a region where when usage wind quantity on demand side is small, only wind release control is made. CONSTITUTION: A turbo compressor 1, a suction valve 2 positioned on suction side of the turbo compressor 1 for throttling suction gas flow quantity, piping 3 on the discharge side of the turbo compressor 1, leading to demand side, piping 4 branching from the piping 3 on discharge side, and a wind release valve 5 disposed on the piping 4, for releasing wind of discharge gas of the turbo compressor wind of discharge gas of the turbo compressor 1, are disposed. And further, a pressure regulating meter 6, a pressure detector 7 disposed in the piping 4 on discharge side and a flow quantity detector 8, are disposed.  Accordingly, load/non/load control is made, i.e., when wind quantity is below a specific, set quantity, by fully opening the wind discharge valve 5 and fully closing the suction valve 2, a non-load state, and when pressure on discharge side drops to a regulation value, by again fully closing the wind release valve 5 and opening the suction valve 2, a load state. Thus, energy is largely saved.
Patent JP-H10118191-A (JP)
Title: Probe for medical treatment
Inventor: CAZAL THIERRY
IPC: A61M39/08
Filed: 1997-10-16
Abstract: PROBLEM TO BE SOLVED: To provide a probe for medical treatment which may be extremely easily provided with supplementary long-axis conduit (slender tubes) as compared with the number of branch tubes and is easily available at a low cost. SOLUTION: The slender body 2 of this probe for medical treatment has the central slender tubes which are joined to each other by an easily tearable surface material partition line 8 and forms a boundary of long-axis parts in the inside of the slender body 2. The respective long-axis parts internally have long-axis conducts 9, 10 in the inside. Each of the branch tubes 11, 12 of the probe is formed by one piece of the long-axis part of the slender body separated from the other long-axis part. The section of the central slender tube is such that the tubular elements may be accepted.
Patent JP-H04157671-A (JP)
Title: Magnetic disk memory device
Inventor: MACHIDA TAKASHI
IPC: G11B20/12
Filed: 1990-10-22
Abstract: PURPOSE:To achieve a high-speed read and write operation of information without requiring improvement in frequency characteristics of a recording medium and write and read heads by modulating a plurality of writing data which are transmitted and distributed from a plurality of shift registers simultaneously and at the same time by writing them onto a surface of a plurality of magnetic disk recording media. CONSTITUTION:In shift registers 1 and 2, a write serial information signal S1 is stored in sequence according to a timing of a write clock signal S2 until completion of a sync pattern input. Then, after completion of the sync pattern input, it is alternately distributed and stored according to a timing of the write clock signal S2. Also, a magnetization inversion signal S9 and a magnetization inversion signal S10 which are modulated by a modulator 3 and a modulator 4 are written into recording media 9 and 10 by inverting current of write and read heads 7 and 8 with head drivers 5 and 6, thus achieving a remarkable high-speed read and write operation of information without requiring improvement in frequency characteristics of a recording medium and the read and write heads.
Patent JP-S63138511-A (JP)
Title: Magnetic head core
Inventor: HASEGAWA NAOYA
IPC: G11B5/23
Filed: 1986-11-28
Abstract: PURPOSE:To prevent a folded part from acting as a dummy gap by deeply forming a groove with thin film so that the folded part at the bottom will not show up on the sliding surface of a medium. CONSTITUTION:The groove 13 with thin film is formed at a prescribed tilting angle theta and in a groove depth T1 on the butting surface 11a of half core blocks 11. The groove width is widened. A metallic magnetic thin film 14 and a protective film 15 are formed in the groove 13, and polished. A track width regulating groove is machined and a glass 17 is filled, after which both of them are jointed. Then the stuff is segmented to produce cores. Thus the groove depth T2 is freely formed below the butting surface of the cores 11, whereby the folded part B at the bottom never shows up on the sliding surface. Consequently the part B never acts as a dummy gap, and hence side reading and cross talk can be prevented.
Patent JP-H10129227-A (JP)
Title: Vehicular suspension
Inventor: KOMATSU JUNJI
IPC: B60G7/00
Filed: 1996-10-25
Abstract: PROBLEM TO BE SOLVED: To provide a simple vehicular suspension able to withstand relatively large road reaction and having high durability. SOLUTION: The upper end of a shock absorber 28 is connected to the upper base part 22 of a vehicle body, the lower part is integrally connected to the upper part of a knuckle 26 for pivotally supporting a wheel 24, the lower part of the knuckle 26 is connected to the rotational end of an arm 29 whose one end is pivotally attached to the vehicle body 21 side through a joint member 35, the upper connecting part (a) of the knuckle 26 is integrally connected to the shock absorber by a fastening member, a spindle 25 is attached to the center part of the knuckle, and the base end 252 of the spindle is integrally connected to the lower part of the shock absorber 28 by the fastening member.
Patent JP-H11189816-A (JP)
Title: Operation of vertical scrap iron melting furnace
Inventor: TAKAHASHI YUKIO
IPC: C21B11/02
Filed: 1998-10-06
Abstract: PROBLEM TO BE SOLVED: To effectively utilize the combustion energy of a carbonaceous material and to prevent the deformation of scrap and the bridging in a melting furnace due to partial melting by adjusting the distribution of the charges of the iron source and carbonaceous material in the radial direction of the furnace and blowing in pulverized coal from a blast tuyere. SOLUTION: SCrap iron 1b is charged into the central part of a vertical melting furnace and a carbonaceous material 1a into the peripheral part of the furnace. Consequently, since the air-flow resistance in the carbonaceous material part is larger than that in the scrap iron part, the flow rate of the gas passing through the carbonaceous material part is remarkably decreased. Meanwhile, when the pulverized coal 3 which is inexpensive as compared with coke is blown in from a blast tuyere 2 set at the lower part of the furnace, the charge of the carbonaceous material 1a from the upper part of the furnace is correspondingly decreased. As a result, the amt. of the carbonaceous material 1a to react with the waste gas contg. CO2 is reduced, and the energy of the caronaceous material 1a is efficiently utilized in heating and melting the scrap iron.
Patent JP-H06137167-A (JP)
Title: Axial flow fluid machine
Inventor: YANAGIDA MITSUAKI
IPC: F02C9/18
Filed: 1992-10-22
Abstract: PURPOSE:To provide an axial flow fluid machine which can be actuated in a flow region of wide range containing a low flow region without decreasing maximum efficiency and partial load efficiency. CONSTITUTION:For instance, in an axial flow compressor having moving blades 3 set up onto the periphery of a hub 2 integrally rotated with a rotary shaft 1, stationary blades 5 set up onto the internal periphery of a casing 4 and an annular flow path 6 constituted between the casing 4 and the hub 2, fluid (B) at a speed higher than fluid (A) 7, flowing in the annular path 6, is jetted toward on a blade surface in a point end part of the moving blade 3 from a jet port 8 via a pressure pipe 10 and an introducing pipe 9 by the compressor 11 when the rotary shaft 1 is rotated.
Patent JP-S63136017-A (JP)
Title: Light beam scanning device
Inventor: HOKI YOJI
IPC: H04N1/12
Filed: 1986-11-28
Abstract: PURPOSE:To facilitate the upward-downward adjustment of a start detection sensor by arranging a detecting means between an f.theta lens and an optical means. CONSTITUTION:The detection sensor 8 is arranged in the space between the f.theta lens 6 and cylinder mirror 11. A light beam emitted by a semiconductor laser 2 is linear in parallel to the axial direction of the cylinder lens 10 on a specular surface of a rotary polygon mirror 5 and nearly circular at the incidence position of the f.theta lens 6. Then this beam is elliptic having the major axis vertically longer than the diameter of a parallel light beam passed through a collimator lens 3 on the mirror 9 or cylinder mirror 11, and circular on a photosensitive drum 7. Consequently, when the elliptic light beam reflected by the mirror 9 is detected by the start detection sensor 8, the vertical beam diameter is larger than the normal circular beam, so it can easily be positioned vertically on a photodetecting element.
Patent JP-H03146964-A (JP)
Title: Toner for developing electrostatic charge image
Inventor: SUZUKI MASANORI
IPC: G03G9/097
Filed: 1989-11-02
Abstract: PURPOSE:To improve image quality by incorporating a specific compd. as a charge control agent into the toner. CONSTITUTION:The bisphenol compd. expressed by formula I is incorporated as the charge control agent into the toner, by which the triboelectrostatic charge between the toner particles or between the toner and a carrier or between the toner and a developing sleeve or electrostatic charge imparting member is stabilized. Further, the distribution of the triboelectrostatic charge quantity is sharp and uniform and the control to the charge quantity suitable for the developing system is possible. In addition, scumming and toner splashing are obviated and the images equal to initial images are obtd. even at the time of continuous use. In the formula, R: a hydroen atom or 1 to 10C alkyl group, X and Y; a hydrogen atom or hydroxyl group, carboxyl group, nitro group or cyano group, Z: a hydroen atom, hydroxyl group, 1 to 10C alkyl group or carboxyl group.
Patent JP-H10127769-A (JP)
Title: Display unit
Inventor: FUKUSHIMA SHOGO
IPC: A61M21/02
Filed: 1996-10-28
Abstract: PROBLEM TO BE SOLVED: To provide a display unit of favorable usability in which a user can be more relaxed and refreshed. SOLUTION: A display unit main body 1 is composed of an installation band 3 as an installation means to be mounted on a head part of a user for installation, a display part 2 continuously provided with the installation band 3 to be positioned before the eyes of the user, a sound means such as a headphone continuously provided with the installation band 3 to generate sound, and optical sensors 4a, 4b embedded in the installation band 3 at parts where it gets in contact with the forehead of the user. By installing the display unit main body 1 on the head part of the user, the position of the optical sensors 4a, 4b to face the forehead of the user is decided. A signal processing means to detect a pulse rate and a blink rate based on output signals of the optical sensors 4a, 4b is provided.
Patent JP-H01126578-A (JP)
Title: Sonar dome
Inventor: IWASE KOUJI
IPC: G01S7/52
Filed: 1987-11-10
Abstract: PURPOSE:To enable effective suppression of vibration without use of a pressurizer for maintaining shape, by using a vibrationproof steel plate sandwitching a vibrationproof material between two steel plates as shell material of a sonar dome. CONSTITUTION:A sonar dome 6 is made so streamlined in a lower half thereof as to reduce a fluid noise. A sound absorbing material is applied to a skirt 3 of the dome to lessen reflection of sound at the top thereof. A dome shell section 1 is so arranged that a vibrationproof material 5 is placed between two steel plates 4 to minimize vibration of a dome caused by a fluid in the excitation and sailing of the dome due to vibration transmitted through a hull. This eliminates the need for using a pressurizer for maintaining a shape thereby enabling effective suppression of vibration.
Patent JP-H10129927-A (JP)
Title: Forward/reverse former folding machine of printing machine
Inventor: TEJIMA TSUNETOSHI
IPC: B42C19/02
Filed: 1996-10-28
Abstract: PROBLEM TO BE SOLVED: To save the installation space, and to easily check and adjust the operation inside a folding machine. SOLUTION: A forward/reverse folding machine 1 of a printing machine comprises a first former group 1A for the forward former folding, and a second former group 1B for the reverse former folding. A forward drive mechanism 33 of the first former group 1A and a reverse drive mechanism 33' of the second former group 1B are continuously arranged in the direction orthogonal to the carrying direction of a web W, a forward former folding part and a forward folding body part to constitute the first former group are arranged on the upstream side in the carrying direction of the web W, and a reverse former folding part and a reverse folding body part to constitute the second former group are arranged on the downstream side.