Inventor
Tadashi Ozue
Inventor
Kanagawa, JP
Overview
Patents· 51 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer89%
C07CAcyclic or carbocyclic compounds2%
C10MLubricating compositions2%
C10NIndexing scheme associated with subclass c10m relating to lubricating compositions2%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein2%
H04NPictorial communication, e.g. television2%
Y10TTechnical subjects covered by former us classification2%
PatentTitleYear
7,457,079'Magnetic head with rectangular-shaped planar spiral coil and leading core width smaller than trailing core width'20087,372,655'Information-processing apparatus, information-processing method, programs and recording mediums'20087,324,303'Magnetic recording/reproducing head with head elements displaced in both head width and lamination directions'20087,323,260'Lubricant, recording medium and carboxylic acid compound'20087,292,412'Rotary head drum apparatus including a rotary drum having a head and a switch for selecting the head and magnetic recording and/or reproducing apparatus using the same'20077,239,466'Magnetic head device and magnetic recording device'20077,161,760'Reproducing apparatus and reproducing method for reproducing data by scanning slant tracks using a plurality of reproducing heads'20077,082,015'Rotary drum and magnetic reproducing apparatus or magnetic recording and reproducing apparatus using the same'20067,075,752'Magnetic head apparatus, magnetic reproducing method, and magnetic reproducing apparatus in linear tape system'20067,057,845'Reproducing apparatus and reproducing method for reproducing data by scanning slant tracks using a plurality of reproducing heads'20067,050,265'Negative pressure type rotary head drum unit and magnetic tape drive using the same'20067,002,777'Tape drive head with lower core layer side inclined at angle equal to or greater than azimuth angle and aligned with upper core layer edge'20066,970,325'Magnetic head apparatus, magnetic reproducing method, and magnetic reproducing apparatus in linear tape system'20056,922,298'Magnetic tape recording apparatus for recording tracks having same track pitch'20056,813,109'Rotary magnetic head apparatus for performing reproduction operations using a plurality of reproduction heads without depending on the arrangement of the recording tracks'20046,801,379'Multi-magnetic recording head, and magnetic recording method and magnetic recording apparatus using the same'20046,765,738'Magnetic reproducing apparatus and method for detecting a degree of wear of magnetic head element'20046,704,174'Magnetic recording and playback device with ESD protection'20046,687,071'Magnetic tape drive apparatus and magnetic head cleaning method'20046,657,807'Magnetic recording/playback apparatus and method'20036,567,243'Recording and reproducing apparatus and recording and reproducing method'20036,563,664'Magnetic signal recording and reproducing apparatus and magnetic signal recording and reproducing method'20036,549,356'Rotary drum and magnetic tape recording/reproducing apparatus using the same'20036,522,506'Apparatus and method for variably projecting a magnetic head element in a magnetic head unit'20036,515,833'Rotating drum assembly and magnetic recording/reproducing apparatus having a tape-contact piece'20036,515,836'Magneto-resistive effect type magnetic head and magnetic tape apparatus'20036,429,992'Non-contact type transmission device and rotary magnetic head unit having the non-contact type transmission device and a bias current control section'20026,411,456'Magnetic signal reproducing method and apparatus'20026,411,473'Rotary drum device and magnetic recording/reproducing apparatus having a more protruding inductive magnetic head relative to magnetoresistive head'20026,356,403'Rotary magnetic head apparatus having reproduction signal wiring, power-supply wiring and recording signal wiring sections in a rotor and a stator arranged in a predetermined manner'20026,304,397'Magnetic recording/reproducing apparatus with rotary drum with magnetoresistance head for transducing DC-free code signals'20016,297,631'Magnetic signal reproducing method and apparatus using magneto-resistive effect element with increased sense current'20016,243,240'Non-contact type transmission device and rotary magnetic head unit having the non-contact type transmission device'20016,229,662'Magnetic recording/reproducing apparatus and magnetic tape'20016,141,166'Recording head arrangement for a magnetic recording device having a multichannel recording mode'20006,081,398'Recording/reproducing apparatus with read-after-write capability'20006,038,200'Autochanger'20006,008,961'Recording method of a helical scan system for recording data to a tape-shaped recording medium'19995,886,843'Recording and playback apparatus using a helical-scan-type rotary head'19995,867,335'Autochanger'19995,852,534'Tape cassette, tape recording apparatus and tape reproducing apparatus'19985,791,578'Recording medium device with memory terminals and shutter sized and shaped in relation thereto'19985,742,444'Recording and/or reproducing apparatus for controlling the running speed of a recording tape'19985,684,649'Recording/reproducing apparatus with read-after-write capability'19975,677,803'Apparatus for recording data signals and a signal having a repetitive frequency to a recording medium and/or for reproducing the data signals therefrom'19975,559,766'Rotary drum tape recording apparatus with controlling optical recording tracks using stored results of scanning of reference tracks'19965,502,603'Rotating head type recording/reproducing apparatus which uses wide recording heads to record a single pilot signal over three tracks and preventing overwriting of the pilot signal by the next head scan'19965,287,341'Rotating optical head apparatus'19945,265,084'Rotary drum assembly with pump-out spiral grooves'19935,157,650'Optical recording apparatus'19925,063,555'Rotary optical head'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991–2008Patents assigned to SONY CORP (51)· patent assignee history
1991–2008Based in Kanagawa, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SONY CORP | 51 | 1991–2008 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kanagawa, JP | 51 | 1991–2008 |