Inventor
YOSHIKAWA RYOHEI
JP21 patents
⚠️ This page may combine multiple inventors who share the name “YOSHIKAWA RYOHEI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJIFILM BUSINESS INNOVATION CORP
17 patentsUS12117752B2Oct 15, 2024
Resin belt for image forming apparatus, fixing belt, fixing device, and image forming apparatus
FUJIFILM BUSINESS INNOVATION CORP0 citations62
US11774885B2Oct 3, 2023
Polymer material molded product, fixing member, method for producing fixing member, fixing device, and image forming apparatus
FUJIFILM BUSINESS INNOVATION CORP0 citations62
US11334006B1May 17, 2022
Transfer device, image forming apparatus, and endless belt
FUJIFILM BUSINESS INNOVATION CORP0 citations62
US11067928B2Jul 20, 2021
Fixing member, fixing unit, and image forming apparatus
FUJIFILM BUSINESS INNOVATION CORP0 citations62
US12474656B2Nov 18, 2025
Film, tubular fixing member, fixing device, and image forming apparatus
FUJIFILM BUSINESS INNOVATION CORP0 citations61
US12259671B2Mar 25, 2025
Resin belt, fixing belt, fixing device, and image forming apparatus
FUJIFILM BUSINESS INNOVATION CORP0 citations61
US12253815B2Mar 18, 2025
Endless belt, fixing belt, fixing device, and image forming apparatus
FUJIFILM BUSINESS INNOVATION CORP0 citations61
US12197156B2Jan 14, 2025
Polymer film, tubular fixing member, fixing device, and image forming apparatus
FUJIFILM BUSINESS INNOVATION CORP0 citations61
US12174571B2Dec 24, 2024
Fixing belt including layer of polyimide and specific filler, fixing device including the fixing belt, and image forming apparatus including the fixing device
FUJIFILM BUSINESS INNOVATION CORP0 citations61
US12105455B2Oct 1, 2024
Sliding member for fixing device, fixing device, and image forming apparatus
FUJIFILM BUSINESS INNOVATION CORP0 citations61
US11796946B2Oct 24, 2023
Belt having an aggregate with entagled and non-entangled fibrous carbons
FUJIFILM BUSINESS INNOVATION CORP0 citations61
US11537073B2Dec 27, 2022
Fixing belt, fixing device, and image forming apparatus
FUJIFILM BUSINESS INNOVATION CORP0 citations61
US11531295B1Dec 20, 2022
Fixing belt, fixing device, and image forming apparatus
FUJIFILM BUSINESS INNOVATION CORP0 citations61
US12591191B2Mar 31, 2026
Sliding member with spaced grooves, fixing device, and image forming apparatus
FUJIFILM BUSINESS INNOVATION CORP0 citations60
US11644776B1May 9, 2023
Endless belt, fixing belt, fixing device, and image forming apparatus
FUJIFILM BUSINESS INNOVATION CORP0 citations60
US11327425B2May 10, 2022
Fixing belt, fixing device, and image forming apparatus
FUJIFILM BUSINESS INNOVATION CORP1 citations60
US12111590B2Oct 8, 2024
Fixing device having reduced increase in rotational torque of second rotatable member providing an image with reduced unevenness in gloss to be formed and image forming apparatus using the same
FUJIFILM BUSINESS INNOVATION CORP0 citations51