P

Inventor

NAKAO TORU

JP54 patents
⚠️ This page may combine multiple inventors who share the name “NAKAO TORU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

FUJIFILM CORP

35 patents
US7623310B2Nov 24, 2009

Magnetic recording medium, servo signal write head unit, and servo writer

FUJIFILM CORP22 citations92
US7515374B2Apr 7, 2009

Magnetic tape and manufacturing method thereof, and servo writer

FUJIFILM CORP36 citations92
US7486479B2Feb 3, 2009

Magnetic head assembly with at least one guide block set back from sliding surface of servo signal recording head

FUJIFILM CORP26 citations92
US7602578B2Oct 13, 2009

Servo writer and servo writing process

FUJIFILM CORP9 citations83
US7379258B2May 27, 2008

Inspection method of head unit moving device and manufacture method of inspection use tape therefor

FUJIFILM CORP11 citations83
US7355805B2Apr 8, 2008

Magnetic tape and method of manufacturing magnetic tape, servo writer, and method of and apparatus for specifying servo band

FUJIFILM CORP15 citations83
US11908498B2Feb 20, 2024

Servo pattern recording device, magnetic tape, magnetic tape cartridge, magnetic tape drive, magnetic tape system, detection device, servo pattern recording method, and manufacturing method of magnetic tape

FUJIFILM CORP2 citations73
US11894027B2Feb 6, 2024

Servo pattern recording device, magnetic tape, magnetic tape cartridge, magnetic tape drive, magnetic tape system, detection device, servo pattern recording method, and manufacturing method of magnetic tape

FUJIFILM CORP2 citations73
US12374361B2Jul 29, 2025

Magnetic tape, magnetic tape cartridge, servo pattern recording device, magnetic tape drive, magnetic tape system, detection device, inspection device, servo pattern recording method, manufacturing method of magnetic tape, detection method, and inspection method

FUJIFILM CORP1 citations64
US12518779B2Jan 6, 2026

Magnetic tape cartridge, magnetic tape drive, magnetic tape system, and method of operating magnetic tape drive

FUJIFILM CORP0 citations63
US12073853B2Aug 27, 2024

Magnetic tape cartridge, magnetic tape drive, magnetic tape system, and method of operating magnetic tape drive

FUJIFILM CORP1 citations63
US12026572B2Jul 2, 2024

Noncontact communication medium for recording medium cartridge, recording medium cartridge, and method for manufacturing noncontact communication medium for recording medium cartridge

FUJIFILM CORP0 citations63
US7428117B2Sep 23, 2008

Servo signal inspecting device and method for inspecting servo signal

FUJIFILM CORP2 citations63
US12525257B2Jan 13, 2026

Detection device, inspection device, magnetic tape cartridge, magnetic tape, magnetic tape drive, magnetic tape system, detection method, inspection method, and program

FUJIFILM CORP0 citations62
US12394434B2Aug 19, 2025

Magnetic head, magnetic tape, magnetic tape cartridge, magnetic tape drive, and magnetic tape reading method

FUJIFILM CORP0 citations62
US12367897B2Jul 22, 2025

Servo pattern recording device, magnetic tape, magnetic tape cartridge, magnetic tape drive, magnetic tape system, detection device, servo pattern recording method, and manufacturing method of magnetic tape

FUJIFILM CORP0 citations62
US12308053B2May 20, 2025

Signal processing device, magnetic tape drive, magnetic tape, magnetic tape cartridge, program, signal processing method, and magnetic tape manufacturing method

FUJIFILM CORP0 citations62
US12243564B2Mar 4, 2025

Detection device, inspection device, magnetic tape drive, magnetic tape system, detection method, inspection method, and program

FUJIFILM CORP0 citations62
US12176014B2Dec 24, 2024

Servo pattern recording device, magnetic tape, magnetic tape cartridge, magnetic tape drive, magnetic tape system, detection device, servo pattern recording method, and manufacturing method of magnetic tape

FUJIFILM CORP0 citations62
US12136438B2Nov 5, 2024

Magnetic tape cartridge, magnetic tape drive, magnetic tape system, and method of operating magnetic tape drive

FUJIFILM CORP0 citations62
US12073859B2Aug 27, 2024

Detection device, inspection device, magnetic tape cartridge, magnetic tape, magnetic tape drive, magnetic tape system, detection method, inspection method, and program

FUJIFILM CORP0 citations62
US12068011B2Aug 20, 2024

Magnetic head, magnetic tape, magnetic tape cartridge, magnetic tape drive, and magnetic tape reading method

FUJIFILM CORP0 citations62
US12057148B2Aug 6, 2024

Signal processing device, magnetic tape drive, magnetic tape, magnetic tape cartridge, program, signal processing method, and magnetic tape manufacturing method

FUJIFILM CORP0 citations62
US12027185B2Jul 2, 2024

Detection device, inspection device, magnetic tape cartridge, magnetic tape, magnetic tape drive, magnetic tape system, detection method, inspection method, and program

FUJIFILM CORP0 citations62
US11900969B2Feb 13, 2024

Detection device, inspection device, magnetic tape drive, magnetic tape system, detection method, inspection method, and program

FUJIFILM CORP0 citations62
US11900976B2Feb 13, 2024

Detection device, inspection device, magnetic tape cartridge, magnetic tape, magnetic tape drive, magnetic tape system, detection method, inspection method, and program

FUJIFILM CORP0 citations62
US11705159B2Jul 18, 2023

Magnetic tape cartridge, magnetic tape drive, magnetic tape system, and method of operating magnetic tape drive

FUJIFILM CORP1 citations62
US11276427B2Mar 15, 2022

Magnetic tape recording and reproducing apparatus and recording and reproducing method

FUJIFILM CORP1 citations62
US7672076B2Mar 2, 2010

Servo writer and servo writing method

FUJIFILM CORP4 citations62
US11551718B2Jan 10, 2023

Recording and reproducing device, recording and reproducing method, and magnetic tape cartridge

FUJIFILM CORP0 citations59
US11183206B2Nov 23, 2021

Magnetic tape cartridge, recording device, recording method, and data recording, and reproducing system using a recording medium including a predetermined area for recording defect information

FUJIFILM CORP0 citations59
US11120832B2Sep 14, 2021

Recording and reproducing device, recording and reproducing method, and magnetic tape cartridge

FUJIFILM CORP1 citations59
US12243568B2Mar 4, 2025

Magnetic tape cartridge, magnetic tape drive, memory, magnetic tape, magnetic tape system, and operation method of magnetic tape drive

FUJIFILM CORP0 citations56
US12223987B2Feb 11, 2025

Magnetic tape cartridge, magnetic tape drive, memory, magnetic tape, magnetic tape system, and operation method of magnetic tape drive

FUJIFILM CORP0 citations56
US12272390B2Apr 8, 2025

Magnetic tape cartridge, magnetic tape drive, magnetic tape system, and method of operating magnetic tape drive

FUJIFILM CORP0 citations52

FUJI PHOTO FILM CO LTD

9 patents

YOSHITOMI PHARMACEUTICAL

6 patents

Showing the top 50 of 54 patents by PatentIndex Score.