Inventor
WAKABAYASHI KOUICHIROU
JP19 patents
⚠️ This page may combine multiple inventors who share the name “WAKABAYASHI KOUICHIROU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
13 patentsUS5774444AJun 30, 1998
Split photo detector for detecting a central portion and a peripheral portion of a reflected light beam
HITACHI LTD31 citations93
US7079457B2Jul 18, 2006
Method of reproducing information with equalization coefficient for the reproduced information
HITACHI LTD24 citations92
US6480447B1Nov 12, 2002
Method of reproducing information using a selected equalization coefficient for each signal
HITACHI LTD17 citations92
US5886969AMar 23, 1999
High-density information recording/reproducing method
HITACHI LTD17 citations92
US5835469ANov 10, 1998
High-density information recording/reproducing method
HITACHI LTD24 citations92
US5808988ASep 15, 1998
Reproduction of optical information by one-beam optics with reduced crosstalk as recorded in multi-phases and multi-levels at staggered lattice points, and apparatus and recording medium therefor
HITACHI LTD35 citations92
US6130797AOct 10, 2000
Magnetic recorder and magnetooptical recorder
HITACHI LTD16 citations84
US6567348B1May 20, 2003
Method for recording mark length shorter than channel bit length on magneto-optical medium
HITACHI LTD13 citations83
US6944105B2Sep 13, 2005
Method of reproducing information with equalization for the reproduced information to reduce inter-symbol interference
HITACHI LTD7 citations74
US5786952AJul 28, 1998
Magnetic digital storage method and system wherein magnetic transition points in adjacent recorded tracks are out of phase with each other
HITACHI LTD8 citations74
US5491683AFeb 13, 1996
Optical information recording/reproducing method
HITACHI LTD7 citations74
US7046595B2May 16, 2006
Method of reproducing information with equalization coefficient for the reproduced information
HITACHI LTD0 citations52
US6552977B2Apr 22, 2003
Information reproducing apparatus enabling equalization processing with equalization coefficient for reproduced information
HITACHI LTD0 citations52
HITACHI MAXELL
6 patentsUS6602621B2Aug 5, 2003
Magnetic recording medium, method for producing the same, and magnetic storage apparatus
HITACHI MAXELL52 citations94
US6893746B1May 17, 2005
Magnetic recording medium with high thermal stability, method for producing the same, and magnetic recording apparatus
HITACHI MAXELL43 citations92
US6730421B1May 4, 2004
Magnetic recording medium and its production method, and magnetic recorder
HITACHI MAXELL49 citations92
US6815098B2Nov 9, 2004
Magnetic recording medium, method for producing the same, and magnetic storage apparatus
HITACHI MAXELL18 citations91
US6674594B1Jan 6, 2004
Read/write head and magnetic recording device
HITACHI MAXELL16 citations84
US6970400B1Nov 29, 2005
Information recording medium with magnetic marks, recording and reproducing apparatus therefor, and head positioning method using detected magnetic leakage fields from the magnetic marks
HITACHI MAXELL14 citations83