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Patent Summary

U.S. Patent Classes & Classifications Covered in this listing:

Class 360: Dynamic Magnetic Information Storage Or Retrieval

This class is an integral part of Class 369, Dynamic Information Storage or Retrieval, and is the specific class for apparatus and corresponding processes for the storage and retrieval of information based on relative movement between a magnetic record carrier and a transducer. It includes apparatus and corresponding processes for making copies or editing of records falling within the above definition. A magnetic record carrier within the meaning of this class is an element which consists of a magnetizable material or is comprised of a coating or impregnation of magnetizable material which is intended for the storage of more than a single bit of information.

Subclass 16: Contact transfer
Subclass 17: With magnetic bias
Subclass 46: Head amplifier circuit
Subclass 48: Data in specific format
Subclass 49: Address coding
Subclass 59: Thermomagnetic recording or transducers
Subclass 60: Recording-or erasing-prevention
Subclass 70: Synchronizing moving-head moving-record recorders
Subclass 75: Controlling the head
Subclass 77.01: Track centering
Subclass 77.02: Rotary carrier
Subclass 77.04: By memory storage of repeatable error or correction
Subclass 77.08: Distinct servo sector
Subclass 78.04: For rotary carrier (e.g., disc)
Subclass 78.14: By recorded servo reference or address signal
Subclass 97.01: Disk record
Subclass 98.03: With pneumatic partioning of disks
Subclass 234.3: Air bearing slider detail
Subclass 235.2: Rail material
Subclass 235.3: Body material
Subclass 235.5: Negative pressure type
Subclass 235.6: Leading end detail
Subclass 235.7: Trailing end detail
Subclass 235.8: Rail surface detail
Subclass 236: Cross rail detail
Subclass 236.3: Three or more rails/pads
Subclass 236.9: Asymmetrical rail arrangement
Subclass 237: Three or more rails/pads
Subclass 254.3: Moving lifter
Subclass 254.7: Fixed lifter
Subclass 254.8: Lifter surface detail
Subclass 255: Actuator side detail
Subclass 264.1: Arcuate head movement
Subclass 264.2: Electrical connection detail onto actuator arm
Subclass 264.8: Core detail
Subclass 265.2: Bearing
Subclass 265.9: Detail of actuator arm supporting head suspension
Subclass 244: Disk record
Subclass 244.2: Load beam detail
Subclass 244.5: Actuator mount region detail
Subclass 244.8: Spring region detail
Subclass 245: Gimbal mounting region detail
Subclass 245.3: Gimbal detail
Subclass 245.5: Integral with load beam
Subclass 245.6: Plural axis components
Subclass 313: Magnetoresistive (MR) reproducing head
Subclass 317: Combined with inductive write head in piggyback/merged configuration
Subclass 319: Detail of magnetic shielding
Subclass 322: Detail of sense conductor
Subclass 324: Having Giant Magnetoresistive (GMR) or Colossal Magnetoresistive (CMR) sensor formed of multiple thin films
Subclass 324.11: Detail of pinned film or additional film for affecting or biasing the pinned film
Subclass 324.12: Detail of free layer or additional film for affecting or biasing the free layer
Subclass 324.2: Having tunnel junction effect
Subclass 325: Having Anisotropic Magnetoresistive (AMR) sensor formed of multiple thin films
Subclass 326: Having Giant Magnetoresistive (GMR) or Colossal Magnetoresistive (CMR) sensor formed of a single thin film
Subclass 327: Having Anisotropic Magnetoresistive (AMR) sensor formed of a single thin film
Subclass 327.31: Using a permanent magnet
Subclass 327.32: Using exchange couple biasing
Subclass 133: For disk
Subclass 135: Disk

Class G9B/5.114:

Class G9B/5.116:

Class G9B/5.135:

Class G9B/5.115:

Class 29: Metal Working

Metal working or shaping - it comprises processes, tools, machines, and apparatus not classifiable in the specific classes relating to the manufacture of articles from metal. It has been made the generic class for the following regardless of the composition of the blank, stock material, or article recited or worked upon: (a) process of electric condenser making; (b) a burnishing process; (c) a process of manufacture; (d) apparatus used to assemble or disassemble.

Subclass 603.07: Fabricating head structure or component thereof
Subclass 603.13: Depositing magnetic layer or coating
Subclass 603.14: Plural magnetic deposition layers
Subclass 603.27: Specified diverse magnetic materials

Class G9B/5.082:

Class G9B/5.086:

Class G9B/5.09:

Class G9B/5.094:

Class 430: Radiation Imagery Chemistry: Process, Composition, Or Product Thereof

This is the generic class for: (1) Forming the likeness of an object, or an instrumented or discernible phenomenon, in a chemically defined receiver or in a receiver wherein radiation produces a chemical reaction, by use of radiation. (2) Finishing an image by chemical processing regardless how formed. (3) A radiation sensitive receiver, composition, or product disclosed solely for radiation imagery chemistry, and process of making same. (4) A nonradiation sensitive-receiver, composition, or product. (5) An imaged product by a process or employing a receiver, composition, or product.

Subclass 311: Making electrical device
Subclass 316: Multiple etching of substrate
Subclass 320: Making named article

Class 428: Stock Material Or Miscellaneous Articles

This is the residual class for: 1. Stock material in the form of a structurally defined web, sheet, rod, strand, fiber, filament, cell, flake, particle not provided elsewhere. 2. Stock material in the form of a web, sheet, mass or layer which consists of or contains a structurally defined constituent or element. 3. A nonstructural laminate defined merely in terms of the composition of one or more layers. 4. An article of manufacture or an intermediate-article not provided for elsewhere. 5. A process for applying an impregnating material to a naturally solid product such as a wood beam, a sheet of leather or a stone, or for applying a coating to a base, and which process includes no significant method step.

Subclass 846: Magnetic recording media substrate
Subclass 848: Circular shape (e.g., disk, etc.)
Subclass 848.5: Having specified pits, tracks, or indicia
Subclass 432: Next to metal or compound thereof
Subclass 450: Next to metal
Subclass 469: Next to metal salt or oxide
Subclass 704: Of B, N, P, S, or metal-containing material

Class G9B/5.222:

Class G9B/5.236:

Class G9B/5.306:

Class G9B/5.309:

Class 148: Metal Treatment

Treating metal to modify or maintain the internal physical structure or chemical properties of metal. Most processes in this class relate to treating solid or semisolid metal with heat, without melting a substantial portion thereof, and also includes the combination of significant heating and working not provided for in other metal working classes. Cooling of metal to produce microstructure change is proper for this class. It includes processes of treating metal to intentionally develop, improve, modify, or preserve the magnetic properties of a free metal or alloy, occurring alone or mixed with one or more components. Also included are processes of reactive coating of metal wherein an externally supplied carburizing or nitriding agent is combined with the metal substrate to produce a carburized or nitridized or carbonitrided coating thereon or a uniformly carburized, nitrided, or carbonitrided metal alloy containing a metal element from said substrate.

Subclass 306: Iron base (i.e., ferrous)
Subclass 310: Nickel containing

Class 252: Compositions

(A) Compositions of matter, having or not having structure, physical form or heterogeneous arrangement of components and for which there is no provision elsewhere. (B) Packages of such compositions, or other articles which include such compositions for which there is no provision elsewhere. (C) Processes of making, or peculiar to making, such compositions and for which there is no provision elsewhere. (D) Apparatus for use in or peculiar to such processes and for which there is no provision elsewhere.

Subclass 62.56: Iron-oxygen compound containing
Subclass 62.57: With scandium, yttrium, gallium, rare earth, or actinide
Subclass 62.59: With titanium, zirconium, silicon, hafnium, germanium, or tin
Subclass 62.62: With Group II metal or lead
Subclass 62.63: Calcium, barium, strontium, or lead

Class 438: Semiconductor Device Manufacturing: Process

This class provides for manufacturing a semiconductor containing a solid-state device for the following purposes: (a) conducting or modifying an electrical current, (b) storing electrical energy for subsequent discharge within a microelectronic integrated circuit, or (c) converting electromagnetic wave energy to electrical energy or electrical energy to electromagnetic energy. Also operations involving: (1) coating a substrate with a semiconductive material, or (2) coating a semiconductive substrate or substrate containing a semiconductive region. It also provides for operations involving etching a semiconductive substrate or etching a substrate containing a semiconductive region. The class provides for packaging or treatment of packaged semiconductor.

Subclass 524: Into grooved semiconductor substrate region
Subclass 551: Using multiple layered mask
Subclass 720: Electrically conductive material (e.g., metal, conductive oxide, etc.)
Subclass 722: Metal oxide

Class 257: Active Solid-State Devices (E.G., Transistors, Solid-State Diodes)

This class provides for active solid-state electronic devices, that is, electronic devices or components that are made up primarily of solid materials, usually semiconductors, which operate by the movement of charge carriers - electrons or holes - which undergo energy level changes within the material and can modify an input voltage to achieve rectification, amplification, or switching action, and are not classified elsewhere.

Subclass E43.004: Magnetic-field-controlled resistors (EPO)
Subclass E29.151: For TFT (EPO)
Subclass E21.311: Using plasma (EPO)

Class G9B/21.014:

Class G9B/21.018:

Class G9B/21.02:

Class G9B/5.024:

Class G9B/5.187:

Class G9B/5.293:

Class 369: Dynamic Information Storage Or Retrieval

Apparatus for the storage or retrieval of arbitrarily variable information which is retained in a storage medium by variation of a physical characteristic. The information is stored or retrieved by causing or sensing a variation of a physical characteristic of the storage medium by a transducer having relative motion along a continuous path.

Subclass 13.02: Magnetic field and light beam
Subclass 13.25: Overwriting

Class G9B/23.098:

Class G9B/5.124:

Class G9B/5.23:

Class G9B/27.033:

Class G9B/5.188:

Class G9B/5.228:

Class G9B/5.225:

Class G9B/5:

Class G9B/5.289:

Class G9B/5.308:

Class G9B/5.151:

Class G9B/23.008:

Class G9B/7.196:

Class G9B/25.003:

Class G9B/33.027:

Class G9B/5.203:

Class G9B/5.224:

Class G9B/27.052:

Class G9B/21.026:

Class G9B/5.231:

Class G9B/5.197:

Class G9B/5.295:

Class G9B/5.181:

Class 101: Printing

Means not otherwise provided for adapted to produce characters or designs on surfaces by impression of types or dies or by applying coating material thereto through openings of previous portions of a pattern sheet, as in stenciling, or by impression from planos:graphic or intaglio surfaces.

Subclass 489: Electric or magnetic transfer

Class G9B/5.153:

Class G9B/5.149:

Class G9B/5.193:

Class 427: Coating Processes

This is the generic class for: A. applying or obtaining a coating on a surface. The coating may be hard or soft, permanent or transitory, supplied solely by extraneous materials or supplied wholly or in part by the base material. B. impregnating a base by causing a coating material to extend or penetrate into the base material, or into the interstices of a porous, cellular or foraminous material. C. taking preparatory treatments of the base material, subsequent treatments of the coated base material and other ancillary noncoating operations claimed, per se, processes limited to etching for making a base more compatible with, or adherent to, the coating wherein the base is the substrate (work) onto which a coating is applied are included.

Subclass 128: Magnetic coating

Class G9B/5.145:

Class 720: Dynamic Optical Information Storage Or Retrieval

This is the specific class for apparatus and corresponding processes for the storage and retrieval of variable optical or magneto-optical information based on relative movement between an optical storage carrier or medium and a transducer along a continuous path. It includes apparatus and corresponding processes for making copies or editing of optical records falling within the above definition, and also includes the record carrier or medium, per se, having particular information storage structure.

Subclass 662: Arcuate transducer assembly movement

Class G9B/5.154: