Patents Examined by Davide Caputo
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Patent number: 6145188Abstract: An actuator structure includes a flexure suspension with a flag appendage having a cantilevered portion extending parallel to the arm-suspension to form a gap therebetween. The flex cable that connects to the device electronics has an elongated portion secured to the side of the arm-suspension assembly presenting termination pads, which extend to the cable edge, along the elongated portion side and in alignment with the gap between arm-suspension and flag. The leads extending from the transducer are fanned out and extend across the gap. The leads are bonded to the arm-suspension and to the lead cantilevered portion immediately adjoining the gap. To terminate the leads, the flag is folded down 90 degrees, bringing the leads into contact with the te nation pads where they are ultrasonically bonded. The flag is then bent toward its original position causing the fine lead wires to separate between the flag cantilever portion bond and the ultrasonically bonded termination.Type: GrantFiled: August 26, 1997Date of Patent: November 14, 2000Assignee: International Business Machines CorporationInventors: William Woodrow Brooks, Jr., Jerome Thomas Coffey, Todd Phillip Fracek, Richard Edward Lagergren, James Michael Rigotti, Marvin Allen Schlimmer
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Patent number: 6141847Abstract: A ceramic substrate 1 made of magnetic substance on which an inductor 2 is formed is prepared. A ceramic substrate 3 made of dielectric substance on which a capacitor 4 is formed is also prepared. An intermediate layer 5 made of lass paste is printed on the inductor 2 and the capacitor 4. After debinding the substrates 1 and 3 independently, both the substrates are filed with the intermediate layer 5 therebetween so that both the substrates may be glued and integrated. As such, because the debinding process is provided before filing, less gas is generated in firing, and as a result, voids are restrained from occurring.Type: GrantFiled: December 23, 1997Date of Patent: November 7, 2000Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Masayuki Mizuno, Masaaki Hayama, Kazuhiro Miura, Noboru Mori, Akira Hashimoto, Mitsuteru Yamada
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Patent number: 6119331Abstract: In the manufacture of a combined magnetic head, milling time for notching a first pole piece of the head's write element is reduced by constructing the first pole piece with a notching layer on a first pole piece layer, the notching layer having first and second corners adjacent first and second side walls of the second pole tip. The first pole piece layer has a wide lateral expanse, and the notching layer has a narrow lateral expanse. The width of the notching layer is preferably 0.2 .mu.m to 2.0 .mu.m wider than a target track width of the second pole tip. With this arrangement, the notching layer has first and second side walls that project 0.10 .mu.m to 1.0 .mu.m, laterally, beyond first and second side walls, respectively, of the second pole tip. The thickness of the notching layer is preferably between 0.1 .mu.m to 1.0 .mu.m. Accordingly, full notching of the notching layer can be achieved by milling a small corner in a range of 0.10 .mu.m by 0.10 .mu.m to 1.0 .mu.m by 1.0 .mu.m, as seen in an ABS view.Type: GrantFiled: July 8, 1997Date of Patent: September 19, 2000Assignee: International Business Machines CorporationInventors: Thomas Young Chang, Edward Hinpong Lee, Jhy-Shuey Jerry Lo
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Patent number: 6098273Abstract: A device for mounting the shaft to the rotor of an electric motor, comprising the steps of: positioning a cylinder block (3) and a rotor (7) relative to each other with a predetermined axial spacing therebetween and with the axes of a bearing bore of the cylinder block (3) and of a central bore of rotor (7) being aligned to each other inside a hermetic chamber (10) having an atmosphere inert at pressures higher than the atmospheric pressure; introducing a shaft (5) which has been diametrically contracted by refrigeration in the hermetic clamber (10) through both the bearing bore and the central bore of the rotor (7); maintaining the shaft (5)-cylinder block (3)-rotor (7) assembly inside the hermetic chamber (10) immobilized until the diametrical thermal dilatation of the shaft (5) causes said shaft to be secured to the wall of the central bore of rotor (7) and until a thermal balance between the parts has been achieved.Type: GrantFiled: August 6, 1999Date of Patent: August 8, 2000Assignee: Empresa Brasileira de Compressores S/A.-EmbracoInventor: Jose Luiz Palomar Fernandez
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Patent number: 6088904Abstract: The generator frame includes an inner frame module having openings at opposite ends sufficiently large to permit installation of various elements of the stator core, including the laminations and windings. Separate end cap modules having openings for receiving the rotor, as well as integral pedestal supports, are fabricated separately from the inner frame module and later secured, for example, by bolting, to the inner frame. Upon installation of the rotor, a packaged generator is afforded which can be bolted directly to a foundation at the installation site without an intervening base assembly.Type: GrantFiled: January 8, 1998Date of Patent: July 18, 2000Assignee: General Electric CompanyInventors: Richard J. Keck, Frank Zwack, Sr., Theodore S. Kralovic, Thomas E. Van Schaick
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Patent number: 6076251Abstract: A method of manufacturing a field coil for motors that does not require winding of a field coil on a pole core of a stator and that improves the space factor of the field coil. On a part of a conductor, an opening is formed to pass a pole core laid out in a stator therethrough and a spiral slit is formed to pass through the conductor in the thickness direction and connect the outer circumference of the conductor and the opening. An insulation material may be provided in the spiral slit when necessary.Type: GrantFiled: July 10, 1997Date of Patent: June 20, 2000Assignee: Nippondenso Co., Ltd.Inventors: Mitsuhiro Murata, Masami Niimi
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Patent number: 6073342Abstract: A system for performing an operation for a circuit substrate, including a plurality of main conveyors each of which conveys, positions, and supports a circuit substrate, the plurality of main conveyors being arranged in a direction perpendicular to a circuit-substrate conveying direction in which the each main conveyor conveys the circuit substrate, an operation performing device which performs at least one operation for the circuit substrate positioned and supported by the each main conveyor, at least one of (a) a carry-in conveyor which conveys the circuit substrate to the each main conveyor and loads the circuit substrate thereon, and (b) a carry-out conveyor which loads the circuit substrate off the each main conveyor and conveys the circuit substrate away therefrom, and a conveyor shifting device which selectively shifts the at least one of the carry-in conveyor and the carry-out conveyor to one of a plurality of shift positions at each of which the one conveyor is aligned with a corresponding one of theType: GrantFiled: November 24, 1997Date of Patent: June 13, 2000Assignee: Fuji Machine Mfg., Co., Ltd.Inventors: Koichi Asai, Shinsuke Suhara, Hirokazu Ikegami
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Patent number: 6065195Abstract: A method for making ink jet print head base elements which includes the steps of making a sacrificial mold of the ink jet print head, binder coagulation casting a ferroelectric, piezoelectric ceramic slurry into the sacrificial mold to form a green ceramic base element, and sintering the green ceramic base element while in the sacrificial mold to thereby burn off the sacrificial mold and yield a sintered, net shape, molded ink jet print head. complex shapes to thereby reduce the numbers of complex manufacturing steps. A three dimensional jet printing process can be used to form the sacrificial molds. Once the sacrificial mold has been made, a ferroelectric material (and preferably a piezoelectric material) is prepared using a binder coagulation process. The slurry of the ferroelectric material, preferably lead zirconium titinate (PbZrTiO.sub.3 hereinafter referred to as PZT) is poured into the mold. Once the ferroelectric material is poured into the mold, a chemical initiator is added.Type: GrantFiled: September 3, 1998Date of Patent: May 23, 2000Assignee: Eastman Kodak CompanyInventors: Dilip K. Chatterjee, Syamal K. Ghosh, Glen S. Lichtenberg
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Patent number: 6058599Abstract: A component mounting apparatus having first and second supply areas juxtaposed to the working area so that components may be selected from either supply area while replacement is being made of spent components at the other supply area.Type: GrantFiled: November 18, 1997Date of Patent: May 9, 2000Assignee: Yamaha Hatsudoki Kabushiki KaishaInventor: Naoki Hanamura
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Patent number: 6047460Abstract: A method of manufacturing a permanent magnet rotor comprising a rotor yoke (2) of a rotor (1) which is formed by laminating a large number of steel sheets (4), (14), (24), (34) and (44), has 2n times (n is a positive integer) of magnetic poles (5) on the outer periphery, has slots (6) at the bases of all or every other magnetic poles at a substantially equal distance from a rotatable shaft hole (7), and has permanent magnets (3) for a field inserted into the slots, and a method for producing it. It has a structure that the permanent magnets for the field are prevented from coming out, or the permanent magnets for the field have their faces treated in order to improve the safety and reliability of the permanent magnet rotor.Type: GrantFiled: May 27, 1997Date of Patent: April 11, 2000Assignee: Seiko Epson CorporationInventors: Takashi Nagate, Akihito Uetake, Yoshihiko Yamagishi
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Patent number: 6035529Abstract: A method of deforming a pin for use in an electrical connection, and a method of making an electrical connection using a deformed pin. A normally straight pin is provided and positioned adjacent to a frame supporting a die and an operating member. The operating member is coupled to the frame and the die, whereby moving the operating member moves the die sufficiently to bend a part of the pin. The method encompasses an apparatus for accomplishing the method, as well a secure electrical connection formed by joining a female fitting with a male fitting carrying a pin modified by the method.Type: GrantFiled: November 25, 1997Date of Patent: March 14, 2000Assignee: Micron Electronics, Inc.Inventor: Craig L. Boe
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Patent number: 6026558Abstract: An armature for an electric rotating machine has a plurality of outer coil elements and a plurality of inner coil elements. Each of the coil elements has end protrusions extending axially outwardly from an axial side of an armature. The end protrusions facing each other in a radial direction is joined by an arc welding. In one method, the end protrusion of the outer coil element is formed a projection at an axially inside of an axial end of the protrusion. The end protrusions are held spaced apart from each other in the radial direction while contacting only through the projection. The axial ends of the protrusions are welded by swinging the welding arc. In another method, a ring-shaped brazing material is interposed between the end protrusions. The brazing material is melted by the welding arc to weld the end protrusions, while cutting out the brazing material existing between two adjacent pairs of the end protrusions.Type: GrantFiled: January 12, 1999Date of Patent: February 22, 2000Assignee: Denso CorporationInventors: Masashi Yoshida, Hideki Ichikawa, Kenichi Shibayama, Yuujirou Kuwamura, Masahiro Takada, Koji Katahira, Koji Shiga
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Patent number: 6018862Abstract: A first layer of magnetic material is deposited onto a substrate to form a bottom pole of an inductive transducer. A second layer of magnetic material is plated on the first layer of magnetic material within the pole tip region to form a bottom pole extension. A layer of non-magnetic metal is then plated on the bottom pole extension to form the gap. A third layer of magnetic material is then plated on the gap layer to form the top pole extension. In one form of the invention, a mask is employed to define a good zero throat level surface to the pole tip region.Type: GrantFiled: September 23, 1998Date of Patent: February 1, 2000Assignee: Seagate Technology, Inc.Inventors: Frank Stageberg, Kenneth P. Ash, Feng Wang, Sara L. Gordon, Wojciech Worwag, Katrina Rook, Kevin Welsh
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Patent number: 6012219Abstract: Electronic parts, such as an inductor, of improved connectivity between magnetic and conductive materials are made by sintering magnetic material under a condition in which no accumulation is developed, by forming a hollow-core of a shape different from an external shape of said conductive material through said magnetic material to be molded by an extrusion-molding means while inserting said magnetic material into said hollow-core, or by providing an erasable means to be removed by a heat treatment in said conductive material and conducting extrusion molding so as to embed said conductive material into said magnetic material, said erasable means being removed during a sintering treatment to form a space between said conductive material and said magnetic material, and a method for making same.Type: GrantFiled: June 17, 1997Date of Patent: January 11, 2000Assignee: Taiyo Yuden Kabushiki KaishaInventors: Ikuo Kato, Kenichiro Nogi
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Patent number: 6012207Abstract: A piezoelectric transformer has a plate shaped piezoelectric member including a driving section disposed at one portion of the piezoelectric member including one end thereof and a power-generating section at the other portion of the piezoelectric member including the other end thereof. The driving section includes driving electrodes and a portion of the piezoelectric member which is polarized in the thickness direction. The power-generating section includes a power-generating electrode and a portion of the piezoelectric member polarized in the longitudinal direction. At least one polarization electrode which is exposed in part on a surface of the piezoelectric member is provided between the driving section and the power-generating electrode.Type: GrantFiled: November 9, 1998Date of Patent: January 11, 2000Assignee: Murata Manufacturing Co., Ltd.Inventors: Koji Ogiso, Akira Ando
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Patent number: 6006417Abstract: An expandable arbor is provided for assembling a plurality of laminas into a lamination, wherein each lamina has a central opening and a plurality of slots extending radially from the central opening. The arbor includes a base portion and an expandable core that is disposed to extend axially from the base portion. The arbor further includes a plurality of key holders disposed around the core. Each key holder is configured in the form of an elongated shaft that extends axially from the base portion and has a polygonal transverse cross-section. Each key holder is further configured with a plurality of faces, and each face defines a key receptacle therein for holding a key.Type: GrantFiled: February 18, 1999Date of Patent: December 28, 1999Assignee: Reliance Electric Industrial CompanyInventors: Jasper J. Brown, Jr., Steven W. Addison
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Patent number: 6003225Abstract: A printed wiring board has an aluminum backing, a dielectric layer overlying the aluminum backing, and a copper layer overlying the dielectric layer. Holes are drilled through the copper and the dielectric layers, and either partially or fully through the aluminum backing, and plated to provide a conductive path between the copper layer and the aluminum backing. Tin-lead traces are applied to the upper surface of the copper layer and the copper layer is etched to define conductive paths. The copper exposed and aluminum exposed surfaces are protected so as to permit processing of the printed wiring board in otherwise-incompatible etchants and other solutions.Type: GrantFiled: December 1, 1997Date of Patent: December 21, 1999Assignee: Hughes Electronics CorporationInventor: Sunghee Yoon
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Patent number: 6003222Abstract: The specification describes techniques for fabricating tapered waveguides in planar photonic integrated circuits with the tapers formed in the z-direction (thickness). The tapers are formed by depositing the core layer in two operations. After depositing the first core layer, the layer is masked, and a step is formed in the first layer. When the second core layer is deposited over the step, a smooth taper results. The core layers are preferably formed by flame hydrolysis. During consolidation the two core layers coalesce into a single homogeneous layer with a smooth taper in the thickness dimension of the waveguide.Type: GrantFiled: July 10, 1997Date of Patent: December 21, 1999Assignee: Lucent Technologies Inc.Inventor: Giovanni Barbarossa
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Patent number: 5996209Abstract: A dynamoelectric machine has a stator end cap mounted on a stator core, which attaches a control circuit board directly onto the stator. The end cap has integrally formed fingers which permit snap on connection of the circuit board. Guide pins make certain the circuit board is oriented properly upon connection to the end cap. The end cap also has wire fixtures which hold winding leads of a winding and permit insulation displacement terminals on the circuit board to plug into the winding leads and achieve electrical contact at the same time the circuit board is mounted on the end cap. Hall devices mounted onto the circuit board are guided into pockets formed on teeth of the stator end cap for precise location. The end cap is constructed to shield the winding from contact with the motor shell. In addition, backward curved fans are employed to reduce mechanical noise in the direction of high speed rotation.Type: GrantFiled: February 23, 1999Date of Patent: December 7, 1999Assignee: General Electric CompanyInventors: David T. Molnar, Robert K. Hollenbeck
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Patent number: 5992005Abstract: Methods of manufacturing a magnetic device and a manufacturing tool employing the methods. One of the methods includes the steps of: (1) applying an adhesive between opposing end faces of first and second core-portions of a magnetic core of the magnetic device, (2) placing the first and second core-portions proximate a permanent magnet during a cure-time of the adhesive, the permanent magnet causing the first and second core-portions to be magnetically attracted to one another to fix the first core-portion relative to the second core-portion and (3) separating the permanent magnet from the first and second core-portions following expiration of the cure-time, the adhesive thereafter fixing the first core-portion relative to the second core-portion.Type: GrantFiled: December 27, 1996Date of Patent: November 30, 1999Assignee: Lucent Technologies Inc.Inventors: Robert Joseph Roessler, William Lonzo Woods