Inventor
ICHIKAWA ATSUSHI
JP26 patents
⚠️ This page may combine multiple inventors who share the name “ICHIKAWA ATSUSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
12 patentsUS5220459AJun 15, 1993
Optical disk driving with inertial damping spring supporting lens holder
HITACHI LTD30 citations91
US4786992ANov 22, 1988
Apparatus and method for controlling tape tension using acceleration and average tension deviation information to adjust motor drive currents
HITACHI LTD48 citations91
US5418763AMay 23, 1995
Disc recording system
HITACHI LTD48 citations90
US4752117AJun 21, 1988
Objective lens driving device
HITACHI LTD28 citations89
US6870528B2Mar 22, 2005
Portable mobile unit
HITACHI LTD11 citations74
US4838649AJun 13, 1989
Apparatus for driving objective lens
HITACHI LTD18 citations74
US4407462AOct 4, 1983
Web drive apparatus
HITACHI LTD8 citations74
US5668787ASep 16, 1997
Mark length recording system with trial writing to maximize recording power and error recovery
HITACHI LTD11 citations72
US5537370AJul 16, 1996
Magnetooptical-disk recording and/or reproducing apparatus for a 5.25 inch large capacity magnetooptical-disk
HITACHI LTD10 citations72
US5420832AMay 30, 1995
Half height magnetooptical-disk recording and/or reproducing apparatus for a 5.25 inch large capacity magnetooptical-disk
HITACHI LTD9 citations72
US5412633AMay 2, 1995
Optical disk apparatus with galvanomirror having movable reflecting surfaces cooperating with fixed reflecting surfaces
HITACHI LTD4 citations63
US5621576AApr 15, 1997
Optical head for optical memory disk recording device with elastic support in a direction parallel to a recording surface
HITACHI LTD5 citations60
DENSO CORP
4 patentsUS7554296B2Jun 30, 2009
Method and apparatus for detecting charged state of secondary battery based on neural network calculation
DENSO CORP38 citations92
US7317300B2Jan 8, 2008
Automotive battery state monitor apparatus
DENSO CORP42 citations92
US7554297B2Jun 30, 2009
Automotive battery state monitor apparatus
DENSO CORP9 citations84
US7061247B2Jun 13, 2006
Electric power generating system for a vehicle
DENSO CORP10 citations73