Abstract: A dielectric ceramic composition comprising a first compound having the general formula, aCaTiO3—(1−a)Ca(Al½Nb½)O3 in which 0.4≦a≦0.6.
Preferably, it further contains a second compound selected from the group consisting of zirconium oxide (ZrO2), manganese oxide (MnO2) and antimony trioxide (Sb2O3), with the second compound present in an amount no more than 2 parts by weight relative to 100 parts by weight of the first compound.
Abstract: An erythromycin A 9-O-benzodithiol oxime intermediate represented by the following formula (III) useful for synthesis of clarthromycin and crystalline solvate thereof:
Wherein, Y1 and Y2 are independently a hydrogen atoms or trimethylsilyl groups. And, a process for the preparation of clarithromycin using the erythromycin A 9-O-benzodithiol oxime intermediate as described in the specification.
Type:
Grant
Filed:
September 6, 2001
Date of Patent:
July 29, 2003
Assignees:
Chemtech Research Incorporation, Hansol Chemience Co., Ltd.
Inventors:
Tae Suk Lee, Chang Hyun Yoo, Kyoung Soo Kim, Hyun Suk An, Jung Young Kim, Wan Joo Kim
Abstract: A deflection yoke includes a bobbin having a cavity formed in the longitudinal direction of the bobbin, and an adjusting coil having a magnetic core on which a thread is cut. The core inserted into the cavity is slidable in the longitudinal direction of the bobbin. The core has a marker formed on only one of ends of the core in the longitudinal direction. The core has been inserted into the cavity from the one end formed with the marker or the other end. The marker is formed on only one of ends of the core before or after the thread is cut thereon.
Abstract: A recording medium reproduction apparatus is provided, which apparatus includes: a reproduction instruction unit which inputs instructions on a direction and a rate of a scratch reproduction of a recording medium; a data storage unit which stores data read out from the recording medium, the data being separated by a reference position at which the scratch reproduction is started into first and second halves each having a predetermined time length; and a scratch reproduction system which reads and reproduces the data stored in the data storage unit in accordance with the instructions input by the reproduction instruction unit.
Abstract: The present invention provides a card recording apparatus capable of printing in high speed as well as reducing overall dimensions of the apparatus. After a card is transported to an information recording section 200 in a lateral (short length) direction of the card, an information signal is recorded on the card thereby. Then, the card is transported to a second heating section 300. An ink image formed on an intermediate recording medium 7 by a first heating section 500 is re-transferred to the card by the second heating section 300. A warp developed on the card by the second heating section 300 is corrected by a card warp correcting section 400.
Abstract: A disk unit includes a tray having one side portion thereof cut off so that a disk placed on the tray has a portion protruding therefrom, a housing which the tray is inserted into or ejected from, and an air current control member having a curved surface. The housing includes a first portion for housing the tray and a second portion for covering the protruding portion of the disk. The air current control member is provided in the second portion of the housing so as to have the curved surface opposing a peripheral edge of the disk moved into the housing.
Abstract: A recording apparatus for an erasable optical disk includes: a first determination part which determines a maximum of modulation degrees of signals reproduced from a test recording area of the optical disk, the signals being recorded in the test recording area with corresponding write power levels different from one another; and a second determination part which determines an optimum write power level corresponding to a target modulation degree obtained from the maximum of the modulation degrees based on a relation between the modulation degrees and the write power levels, wherein the recording apparatus records data on the optical disk with the optimum write power level.
Abstract: A lifting apparatus for high-place work which includes a moving supporting leg having a guiding case with opposite open ends and plural walls, guiding grooves attached to said walls, plural elastic strips, a plurality of connecting pieces transversely attached to said elastic strips with the connecting pieces having a proportional number composed of shorter and longer lengths with the longer connecting pieces having fitting grooves on ends thereof, which matingly engage the ends of the shorter connecting pieces. The elastic strips are rotatably wound about respective winding drums disposed on the loading box of a vehicle and driven a driving force originating from the power source of the vehicle such that by unwinding the respective elastic strips an integrated column is formed at a desired elevated high location.
Abstract: The present invention relates to a heart valve prosthesis having an annular body with a pair of flanges, and a closing element in the form of two or three flaps mounted through bearings into the body's recesses with freedom to be rotated. The annular body has a constant height on a greater portion of a ring circle, and a number of ledges equal to that of the flaps. The ledges are provided with flap rotation limiters. The flaps have ascending and descending surfaces oriented to the direct and reverse flow of blood, a side edge and an edge for joining the other flap. The descending surface of a flap is flat and the ascending surface thereof is spherically concave. The flaps have the minimal thickness on an axis of symmetry at the joining edge. The axes of rotation of the three flap embodiment are arranged relative to each other at an angle of 60° thereby to form the sides of an equilateral triangle. For the valve with two flaps the flange facing the direct flow of blood is thickened.
Type:
Grant
Filed:
June 27, 2001
Date of Patent:
May 27, 2003
Inventors:
Alexandr Vasilievich Samkov, Naum Abramovich Iofis, Andrej Vasilievich Agafonov
Abstract: A liquid potting composition, a semiconductor device manufactured using such composition and a process for manufacturing a semiconductor device using such composition. The liquid potting composition comprises: (a) a liquid epoxy resin; (b) a hardener comprising a multi-hydroxy aromatic compound containing at least two hydroxy groups and at least one carboxyl group; and (c) an accelerator. Suitable hardening agents include 2,3-dihydroxybenzoic acid; 2,4-dihydroxybenzoic acid; 2,5-dihydroxybenzoic acid; 3,4-dihydroxybenzoic acid; gallic acid; 1,4-dihydroxy-2-naphthoic acid; 3,5-dihydroxy-2-naphthoic acid; phenolphthaline; diphenolic acid and mixtures thereof.
Abstract: A format of data recorded in a DVD-Audio disc is composed of an audio manager (AMG) and a plurality of audio title sets (ATSs) following the AMG. A plurality of audio packs are arranged in each ATS. An audio signal indicating a musical composition is encoded to audio data in a signal processing circuit, and the audio data is arranged in the audio packs. The audio data of the audio packs are formatted in a DVD formatting unit with the AMG to be arranged in the ATSs following the AMG. Also, copyright information is arranged in an area of a control data block placed in a read-in area of the DVD-Audio disc. Table-of-contents (TOC) information indicating a top address of the audio data is automatically produced and is arranged in an empty area of the control data block reserved for the copyright information, in an area of the audio packs, in an area of the AMG or in an area of the ATSs.
Abstract: A digital audio signal obtained from an analog audio signal indicating a music, pieces of audio reproduction control information respectively indicating the adjustment of a sound quality of the music are added to the digital audio signal, and the digital audio signal is recorded with the pieces of audio reproduction control information as packed data. When a user selects a piece of particular audio reproduction control information from the pieces of audio reproduction control information after the packed data is read out, levels of pieces of audio data of the digital audio signal are adjusted according to the particular audio reproduction control information, so that the user can entertain the music at a desired sound quality.
Abstract: An aluminum alloy plate for a planographic printing plate capable of being provided with a satisfactory roughed surface by electrolytic etching. The aluminum alloy plate contains 0.1 to 0.6% of Fe, 0.01 to 0.2% of Si, 5 to 150 ppm of Cu, and balance of Al and unavoidable impurities and has a surface layer portion formed of a metastable phase dispersion layer in which metastable phase AlFe-based intermetallic compound particles are dispersed. The metastable intermetallic compound particles each act as a starting point for pits. The alloy plate is formed with a roughed surface which is reduced in unetching and uniformly formed with pits, by electrolytic etching.
Abstract: An optical disk recording apparatus for recording a main information signal reproduced from a first optical disk on a second optical disk includes a first part which set an address of a start point of each of tracks of the first optical disk and an address of a position ahead of the start point by a predetermined period of time, a second part which searches a part between the start point and the position ahead of the start point of each of the tracks for an address within a range where each of index values included in subcodes reproduced with the main information signal is zero, and a third part which, with respect to each of the tracks, sets the index values within the range to zero and index values other than the index values within the range to a predetermined value other than zero, and records the index values on the second optical disk together with the main information signal.
Abstract: An apparatus for manufacturing high concentration ozone gas, characterized by employing a pressure swing adsorbing apparatus having a plurality of adsorbing layers filled with ozone adsorbent, in which the ozone adsorbent is one or two or more kinds of adsorbent selected from the group consisting of high silica pentasyl zeolite, dealuminized fogersite, and mesoporous silicate.
Type:
Grant
Filed:
April 20, 2001
Date of Patent:
April 29, 2003
Assignee:
Mitsubishi Heavy Industries Limited
Inventors:
Jun Izumi, Akinori Yasutake, Nariyuki Tomonaga, Hiroyuki Tsutaya
Abstract: A method for operating an automobile electric power steering (EPS) system is provided. Whether or not the automatic adjustment of the steering angle is performed is decided based on a speed of the automobile and a rotational state of each wheel. A cooperative steering angle to cooperate a braking state of the automobile is set based on the decision and the speed of the automobile. A target steering angle is determined to adjust the steering angle based on the cooperative steering angle and a manual steering angle; and a feedback control on the steering angle is performed such that the steering angle of each wheel become to close to the determined target steering angle.
Type:
Grant
Filed:
November 20, 2001
Date of Patent:
April 22, 2003
Assignee:
Mando Corporation
Inventors:
Seong Joo Kim, Seong Kyu Kim, Dai Jong Chung, Wan Seop Kim
Abstract: A manufacturing method produces a semiconductor IC device which can maintain a low power consumption for electronic circuits and form gate-isolation layers of different thicknesses without increasing the manufacturing cost. The semiconductor IC device has gate-isolation layers of different thicknesses on the same semiconductor substrate surface. To form such gate-isolation layers, a silicon dioxide layer is formed in first and second regions. The dopant-concentration is adjusted in silicon dioxide layer that is to have a thickness different from the above silicon dioxide layer thickness in the second region B. A carbon-containing semiconductor layer is selectively formed in either the first region or the second region. Therefore, there is no need for additional steps for forming silicon dioxide layers of different thicknesses in the first region and in the second region.
Abstract: In case of recording the file 13 of the storage device 6 into the optical disc 3, such data to be recorded as being concerned about a deterioration of reading rate, when the data is reproduced from an optical disc, are recorded with avoiding recording into a linear replacement sector.
Abstract: The present invention discloses a sudden braking apparatus for a press comprising a driving motor (6), a flywheel (5) connected to the motor through a pulley (7) and a belt (8), a small gear (9) connected to the flywheel through a rotational shaft (3) installed horizontally to a supporting frame (2), a large gear (10) engaged with the small gear and installed on a crankshaft (11b) of the press, and a cam (14) mounted at the crankshaft (11a, 11b) and connected to a slide-block (12) via a crank rod (13), characterized in that the apparatus comprises a circular guide (19) slidably connected to the crankshaft (11b) and having a brake lining (16) on one side of the guide (19) facing the supporting frame (2), a radial toothed gear (18) on the other side of the guide and a tapered groove (15) extending from the circumference. In addition the apparatus includes a clutch plate (22) shifting device which enables the circular guide (19) to move horizontally.
Abstract: A disk apparatus has a mechanism for adjusting a head load pressure exerted on a lower surface of a floppy disk by a lower magnetic head. The magnetic head load pressure adjustment mechanism is fixed to a carriage body, and includes a lower suspension and a head load pressure adjustment lever. The lower suspension has a head load spring portion, the spring force of which generates the load pressure exerted on the lower surface of the floppy disk by the lower magnetic head. Rotating the head load pressure adjustment lever changes the state of the deflection of the head load spring portion, thereby adjusting the head load pressure of the lower magnetic head.