P

Inventor

FUJIMOTO TAKASHI

JP84 patents
⚠️ This page may combine multiple inventors who share the name “FUJIMOTO TAKASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

FUJIFILM CORP

16 patents
US11894032B2Feb 6, 2024

Magnetic recording medium having characterized vertical SFD, magnetic tape cartridge, and magnetic recording reproducing device

FUJIFILM CORP9 citations86
US12131762B2Oct 29, 2024

Magnetic recording medium, magnetic tape cartridge, and magnetic recording and reproducing device

FUJIFILM CORP3 citations75
US12198841B2Jan 14, 2025

Magnetic powder, manufacturing method of magnetic powder, and magnetic recording medium

FUJIFILM CORP0 citations63
US12159657B2Dec 3, 2024

Magnetic recording medium having characterized magnetic layer, magnetic tape cartridge, and magnetic recording and reproducing device

FUJIFILM CORP0 citations63
US12014759B2Jun 18, 2024

Magnetic recording medium, magnetic tape cartridge, and magnetic recording and reproducing device

FUJIFILM CORP0 citations63
US11842756B2Dec 12, 2023

Magnetic recording medium, magnetic tape cartridge, and magnetic recording and reproducing device

FUJIFILM CORP0 citations63
US11670333B2Jun 6, 2023

Magnetic tape having characterized coefficient of variation of e-iron oxide powder particle size, magnetic tape cartridge, and magnetic recording and reproducing apparatus

FUJIFILM CORP0 citations63
US11508406B2Nov 22, 2022

Magnetic recording medium, manufacturing method of particles of epsilon type iron oxide-based compound, and manufacturing method of magnetic recording medium

FUJIFILM CORP0 citations63
US11440810B2Sep 13, 2022

Powder of β-iron oxyhydroxide-based compound, β-iron oxyhydroxide-based compound sol, manufacturing method of powder of ϵ-iron oxide-based compound, and manufacturing method of magnetic recording medium

FUJIFILM CORP0 citations63
US11367548B2Jun 21, 2022

E-iron oxide type ferromagnetic powder, method for manufacturing same, and composition containing e-iron oxide type ferromagnetic powder

FUJIFILM CORP0 citations63
US11200913B2Dec 14, 2021

Magnetic recording medium, manufacturing method of ϵ-type iron oxide particles, and manufacturing method of magnetic recording medium

FUJIFILM CORP0 citations63
US11189406B2Nov 30, 2021

Magnetic powder, manufacturing method of magnetic powder, and magnetic recording medium

FUJIFILM CORP0 citations63
US10971182B2Apr 6, 2021

Magnetic powder, manufacturing method of magnetic powder, and magnetic recording medium

FUJIFILM CORP0 citations63
US11459244B2Oct 4, 2022

Particles of β-iron oxyhydroxide-based compound, manufacturing method of the same, manufacturing method of particles of ϵ-iron oxide-based compound, and manufacturing method of magnetic recording medium

FUJIFILM CORP0 citations62
US11348711B2May 31, 2022

Core-shell particle, fired product of core-shell particle, manufacturing method of core-shell particle, epsilon type iron oxide-based compound particle, manufacturing method of epsilon type iron oxide-based compound particle, magnetic recording medium, and manufacturing method of magnetic recording medium

FUJIFILM CORP0 citations62
US11090716B2Aug 17, 2021

ϵ-iron oxide type ferromagnetic powder and magnetic recording medium

FUJIFILM CORP1 citations62

TOKYO OHKA KOGYO CO LTD

3 patents

NEC CORP

2 patents

HITACHI LTD

2 patents

MITSUBISHI MOTORS CORP

2 patents

TABATA CO LTD

2 patents

TOSHIBA KK

2 patents

SUMITOMO CHEMICAL CO

2 patents

OMRON TATEISI ELECTRONICS CO

2 patents

FUJIMOTO TAKASHI

1 patent

SONY CORP

1 patent

KUREHA CORP

1 patent

SANYO ELECTRIC CO

1 patent

NIPPON DENSO CO

1 patent

KEYENCE CO LTD

1 patent

HITACHI BUILDING SYST CO LTD

1 patent

TOYODA GOSEI KK

1 patent

OTSUKA TADASHI

1 patent

NGK SPARK PLUG CO

1 patent

KCM CORP

1 patent

HIRATA MUNEKAZU

1 patent

FUJI XEROX CO LTD

1 patent

MITSUBISHI PETROCHEMICAL CO

1 patent

EASTMAN KODAK CO

1 patent

HITACHI PLANT ENG & CONSTR CO

1 patent

OTSUKA DENSHI KK

1 patent

Showing the top 50 of 84 patents by PatentIndex Score.