Inventor · disambiguated record
Hiroki Ohtsu
Also filed as: OHTSU HIROKI
10 granted patents·1 pending application·120 citations·filing 2003–2014
88Inventor score
Top patents by PatentIndex Score
11 records- 0191US7259930B2Apparatus for transporting a magnetic tapeFUJIFILM CORP·Filed 2005·Granted Aug 21, 2007·15 cites·6 claims
- 0291US7170702B2Servo band recorded magnetic tape, manufacturing method of the same, servo band writer and servo band writing methodFUJI PHOTO FILM CO LTD·Filed 2004·Granted Jan 30, 2007·38 cites·30 claims
- 0391US6989950B2Magnetic tape and manufacturing method thereof, and servo writer and servo write methodFUJI PHOTO FILM CO LTD·Filed 2004·Granted Jan 24, 2006·41 cites·20 claims
- 0483US8670203B2Method for manufacturing magnetic tape with servo signal written therein, magnetic tape with servo signal written therein, and servo writerOHTSU HIROKI·Filed 2011·Granted Mar 11, 2014·11 cites·12 claims
- 0581US8526135B2Magnetic head tracking control method, servo signal verification method, magnetic tape drive, and servo writerOHTSU HIROKI·Filed 2011·Granted Sep 3, 2013·10 cites·5 claims
- 0671US7605995B2Servo writer, signal output control method and manufacturing method of magnetic tape using the signal output control methodFUJIFILM CORP·Filed 2007·Granted Oct 20, 2009·2 cites·18 claims
- 0758US8611047B2Servo writer with closely spaced large-diameter tape guides supported by compressed airOHTSU HIROKI·Filed 2011·Granted Dec 17, 2013·2 cites·10 claims
- 0853US2014197266A1Tape winding apparatusFUJIFILM CORP·Filed 2014·Application pending·0 cites
- 0948US8272590B2Tape winding apparatusIZUMIDA TAKAHISA·Filed 2009·Granted Sep 25, 2012·0 cites·1 claims
- 1047US8702028B2Tape winding apparatusIZUMIDA TAKAHISA·Filed 2012·Granted Apr 22, 2014·0 cites·2 claims
- 1141US6847438B2Apparatus for inspecting surface strain of magnetic tapeFUJI PHOTO FILM CO LTD·Filed 2003·Granted Jan 25, 2005·1 cites·20 claims
Join the waitlist — get patent alerts
Get an alert when Hiroki Ohtsu files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →