U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

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Actor Marlon Brando has four patents, all named "Drumhead tensioning device and method."

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Examiner: Severin, David J.


Primary examiner statistics: 220 patents; average approval time: 789 days
Assistant examiner statistics: 290 patents; average approval time: 888 days

Patents as Primary Examiner (view all)

Patent No. Patent Title:
5418657 Track address detecting means by HDD sector servo method
5359478 Recording medium loading device with detection switch
5202809 Magnetic tape cartridge for helical scan transports with a single...
5200865 Tape loading apparatus for a video tape recorder
5196975 Magnetic disk apparatus having head arm elastically supported on ...
5195004 Method of manufacturing a magnetic core half
5191493 Cassette ejecting mechanism of a tape player
5189657 Circuit for writing and reproducing a modulation signal onto writ...
5189577 A magnetic disk apparatus and a motor securement therefor
5189581 Drying mechanisms and methods for removing excess moisture from ...
5187624 Magnetic head carriage with reinforcing ribs
5187621 RFI/EMI reduction for head and disk assembly
5184261 Various-sized-cassette housing shelf
5184256 Write-data signal compensation apparatus for disk storage
5181149 Magnetic recording/reproducing head assembly
5179484 Mechanism for attaching and detaching disk cartridge from a disk ...
5177650 Disc drive assembly with improved communications and reduced ...
5175655 Method and apparatus for verifying a signal recorded in an encode...
5173821 Adaptive-gap magnetic recording and reading head
5173816 Disk drive with automatic disk type and disk insertion detection
5173828 Compact multiple roller tape guide assembly
5173825 Magnetic head using magnetic oxide part and magnetic metal film
5172288 Magnetic recording medium and a tape guide in a cartridge
5170304 Device for cleaning rotary magnetic head of magnetic recording an...
5170302 Thin-film magnetic head with multiple interconnected coil layers
5170305 Concealed type of magnetic tape cleaner with friction reducing me...
5168408 Magnetic reading and writing head with magnetoresistant element
5168413 Transducer head flying height monitoring methods and apparatus fo...
5168397 Magnetic reproducing head amplifier
5166845 Integrated read/write heads, flexure assembly and air-bearing str...
5166839 Recording prohibition region setting method for video tape
5166843 Compact helical scan tape recording and/or reproducing apparatus
5163003 Apparatus and method for reading from and writing to a magnetic ...
5161077 Actuator arm with a steel sleeve for thermal off track compensati...
5161079 Tape cassette with slidable shutter
5159509 Magnetic head carriage device for magnetic disk drive
5159507 Tape recording and/or reproducing apparatus with a single motor f...
5157566 Magnetic disk drive having a lock mechanism for preventing rotati...
5155639 Transport apparatus for a single reel tape cartridge
5155645 Magnetic head with improved efficiency in both high and low frequ...

Patents as Assistant Examiner (view all)

Patent No. Patent Title:
5196978 Cartridge case
4920437 Disc clamping device
4916566 Magnetic tape cassette which avoids flange/housing contact
4912578 Tape loading mechanism for magnetic recording and/or playback equ...
4910619 Automatic changing system for cassette-type mediums
4910620 Thermal compensation structure for a disk pack module
4910624 Optically readable disk with self centering hub
4908727 Disk with substrate of alumina silicate resin glass
4908725 Recording medium casing with erase prevention device
4908728 VCR protector for VCR machine
4908724 Dual gap cross-field magnetic recording head with single gap sign...
4908723 Compact recording and/or reproducing apparatus with oblique rotar...
4907110 Tape loading device for recording and/or reproducing apparatus
4907112 Recording/reproducing head providing evenly distributed contact p...
4903149 Tape cassette loading system for a magnetic recording and reprodu...
4903152 Magnetic recording and reproducing apparatus capable of containin...
4903158 MR head with complementary easy axis permanent magnet
4901172 Recording/playback apparatus with auto-changer
4901179 Magnetic head having a laminated structure
4899243 Flat spring structure for magnetic tape cassettes, in particular ...
4899236 Recording or reproducing apparatus using container mounted strip-...
4899245 Method of checking magnetic tape cassette lid opening operation
4899239 Auto-reverse tape recorder of the head turning over type
4897745 Method of adjusting the gaps of two magnetic heads arranged on on...
4897749 Combination probe and ring head for vertical recording
4896238 Tape cassette with pressable cap for fixing reel on reel base
4894736 Bendable E-shaped transducer
4894735 Disk drive housing structure
4894743 Replaceable cleaner/drive members for a tape drive machine
4894737 Magnetic head apparatus having projections extending from at leas...
4893210 Computer disk drive assembly having a resiliently supported separ...
4893208 Magnetic erase head with terminator magnets on the ends
4891725 Magnetoresistive sensor having antiferromagnetic exchange-biased ...
4890171 High speed information retrieval apparatus
4887172 Apparatus and method for cueing a video tape recorder
4887176 Double-sided magnetic recording device supporting two transducers...
4887177 Magnetic head having an electro-chemically inert gap of hard mate...
4885648 Cassette tape recorder having a tape cassette ejector and head sh...
4884154 Flanged transducer supporting arm for a magnetic head/arm assembl...
4884261 Storage media transducer loading/unloading and carriage lock mech...
 
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