Inventor
SHIRAI TOSHIO
JP17 patents
Patents
17 patentsUS6304397B1Oct 16, 2001
Magnetic recording/reproducing apparatus with rotary drum with magnetoresistance head for transducing DC-free code signals
SONY CORP23 citations92
US6243240B1Jun 5, 2001
Non-contact type transmission device and rotary magnetic head unit having the non-contact type transmission device
SONY CORP37 citations92
US6515833B1Feb 4, 2003
Rotating drum assembly and magnetic recording/reproducing apparatus having a tape-contact piece
SONY CORP12 citations73
US6429992B1Aug 6, 2002
Non-contact type transmission device and rotary magnetic head unit having the non-contact type transmission device and a bias current control section
SONY CORP11 citations73
US6411473B1Jun 25, 2002
Rotary drum device and magnetic recording/reproducing apparatus having a more protruding inductive magnetic head relative to magnetoresistive head
SONY CORP8 citations73
US6297631B1Oct 2, 2001
Magnetic signal reproducing method and apparatus using magneto-resistive effect element with increased sense current
SONY CORP10 citations73
US4698700AOct 6, 1987
Air guide for tape copying apparatus
SONY CORP9 citations73
US4626931ADec 2, 1986
Contact printing apparatus with presettable means indicating number of copy and master tape life expectancy
SONY CORP8 citations67
US6515836B2Feb 4, 2003
Magneto-resistive effect type magnetic head and magnetic tape apparatus
SONY CORP5 citations63
US4768107AAug 30, 1988
High-speed contact printing system with control signal waveform refinement
SONY CORP5 citations63
US6813109B2Nov 2, 2004
Rotary magnetic head apparatus for performing reproduction operations using a plurality of reproduction heads without depending on the arrangement of the recording tracks
SONY CORP4 citations62
US6549356B1Apr 15, 2003
Rotary drum and magnetic tape recording/reproducing apparatus using the same
SONY CORP3 citations62
US6356403B2Mar 12, 2002
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
SONY CORP3 citations62
US6229662B1May 8, 2001
Magnetic recording/reproducing apparatus and magnetic tape
SONY CORP2 citations62
US4819102AApr 4, 1989
Magnetic tape transfer printing apparatus
SONY CORP5 citations61
US6411456B1Jun 25, 2002
Magnetic signal reproducing method and apparatus
SONY CORP0 citations52
US7082015B2Jul 25, 2006
Rotary drum and magnetic reproducing apparatus or magnetic recording and reproducing apparatus using the same
SONY CORP0 citations41