Inventor · disambiguated record
Atsushi Ichikawa
Also filed as: ICHIKAWA ATSUSHI
21 granted patents·4 pending applications·413 citations·filing 1973–2018
96Inventor score
Top patents by PatentIndex Score
25 records- 0195US7554296B2Method and apparatus for detecting charged state of secondary battery based on neural network calculationDENSO CORP·Filed 2006·Granted Jun 30, 2009·38 cites·9 claims
- 0291US7317300B2Automotive battery state monitor apparatusDENSO CORP·Filed 2004·Granted Jan 8, 2008·42 cites·9 claims
- 0390US4786992AApparatus and method for controlling tape tension using acceleration and average tension deviation information to adjust motor drive currentsHITACHI LTD·Filed 1986·Granted Nov 22, 1988·48 cites·49 claims
- 0486US5418763ADisc recording systemHITACHI LTD·Filed 1993·Granted May 23, 1995·48 cites·29 claims
- 0581US7554297B2Automotive battery state monitor apparatusDENSO CORP·Filed 2007·Granted Jun 30, 2009·9 cites·11 claims
- 0681US3942995ANovel paper coating compositionKANEGAUFCHI CHEMICAL IND CO LT·Filed 1973·Granted Mar 9, 1976·37 cites·13 claims
- 0779US5220459AOptical disk driving with inertial damping spring supporting lens holderHITACHI LTD·Filed 1991·Granted Jun 15, 1993·30 cites·21 claims
- 0878US4752117AObjective lens driving deviceHITACHI LTD·Filed 1986·Granted Jun 21, 1988·28 cites·15 claims
- 0974US4838649AApparatus for driving objective lensHITACHI LTD·Filed 1987·Granted Jun 13, 1989·18 cites·8 claims
- 1069US5777952AThin bias magnet unit for magneto-optical recording deviceHITAHI LTD·Filed 1996·Granted Jul 7, 1998·26 cites·15 claims
- 1165US6870528B2Portable mobile unitHITACHI LTD·Filed 2001·Granted Mar 22, 2005·11 cites·12 claims
- 1262US5287811AFlexible branching apparatus in superconducting magnetically levitated railway having variable cross-section main flexible beamRAILWAY TECHNICAL RES INST·Filed 1993·Granted Feb 22, 1994·19 cites·13 claims
- 1359US5668787AMark length recording system with trial writing to maximize recording power and error recoveryHITACHI LTD·Filed 1996·Granted Sep 16, 1997·11 cites·5 claims
- 1458US5420832AHalf height magnetooptical-disk recording and/or reproducing apparatus for a 5.25 inch large capacity magnetooptical-diskHITACHI LTD·Filed 1993·Granted May 30, 1995·9 cites·12 claims
- 1556US5537370AMagnetooptical-disk recording and/or reproducing apparatus for a 5.25 inch large capacity magnetooptical-diskHITACHI LTD·Filed 1995·Granted Jul 16, 1996·10 cites·12 claims
- 1655US4407462AWeb drive apparatusHITACHI LTD·Filed 1981·Granted Oct 4, 1983·8 cites·10 claims
- 1754US7061247B2Electric power generating system for a vehicleDENSO CORP·Filed 2004·Granted Jun 13, 2006·10 cites·13 claims
- 1850US2021317379A1Sliding member and method for manufacturing sameTOYOTA JIDOSHOKKI KK·Filed 2018·Application pending·0 cites
- 1945US7514849B2Two-dimensional moving apparatusHOYA CORP·Filed 2006·Granted Apr 7, 2009·0 cites·15 claims
- 2041US5621576AOptical head for optical memory disk recording device with elastic support in a direction parallel to a recording surfaceHITACHI LTD·Filed 1994·Granted Apr 15, 1997·5 cites·15 claims
- 2141US2005090912A1Two-dimensional position control method and two-dimensional position control apparatusPENTAX CORP·Filed 2004·Application pending·0 cites
- 2240US2006029357A1Method of processing optical fiberPENTAX CORP·Filed 2005·Application pending·0 cites
- 2339US5412633AOptical disk apparatus with galvanomirror having movable reflecting surfaces cooperating with fixed reflecting surfacesHITACHI LTD·Filed 1993·Granted May 2, 1995·4 cites·12 claims
- 2436US6333075B1Method of forming a film on strip material and apparatus thereofBRIDGESTONE CORP·Filed 1999·Granted Dec 25, 2001·2 cites·11 claims
- 2536US2004207367A1Internal condition detection system for a charge accumulating deviceDENSO CORP·Filed 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →