Inventor
KIKUCHI WATARU
JP32 patents
⚠️ This page may combine multiple inventors who share the name “KIKUCHI WATARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJIFILM CORP
18 patentsUS7371480B2May 13, 2008
Silica sol composition, membrane electrode assembly with proton-exchange membrane, and fuel cell
FUJIFILM CORP32 citations92
US11138998B2Oct 5, 2021
Magnetic recording medium, magnetic recording and reproducing device and composition for magnetic recording medium including polyalkyleneimine compound
FUJIFILM CORP2 citations73
US11170812B2Nov 9, 2021
Magnetic recording medium including specified compound, magnetic recording and reproducing apparatus, and composition for magnetic recording medium
FUJIFILM CORP2 citations72
US10355215B2Jul 16, 2019
Composition for forming organic semiconductor film, organic semiconductor element, and method for manufacturing organic semiconductor element
FUJIFILM CORP4 citations72
US9761261B2Sep 12, 2017
Magnetic recording medium and magnetic coating composition for magnetic recording medium
FUJIFILM CORP3 citations72
US12375859B2Jul 29, 2025
Polymer-based piezoelectric composite material, piezoelectric film, piezoelectric speaker, and flexible display
FUJIFILM CORP1 citations64
US12477949B2Nov 18, 2025
Polymer-based piezoelectric composite material, piezoelectric film, piezoelectric speaker, and flexible display
FUJIFILM CORP0 citations62
US11670334B2Jun 6, 2023
Magnetic recording medium, magnetic recording and reproducing device and composition for magnetic recording medium including polyalkyleneimine compound
FUJIFILM CORP0 citations62
US11276429B2Mar 15, 2022
Magnetic recording medium including compound having a salt structure and magnetic recording and reproducing apparatus
FUJIFILM CORP1 citations61
US7947406B2May 24, 2011
Polymer electrolyte, membrane/electrode assembly, and fuel cell
FUJIFILM CORP2 citations61
US9920083B2Mar 20, 2018
Image recording paper medium and image recording method
FUJIFILM CORP0 citations52
US9889695B2Feb 13, 2018
Image recording method
FUJIFILM CORP1 citations52
US9562167B2Feb 7, 2017
Magnetic recording medium and magnetic coating composition for magnetic recording medium
FUJIFILM CORP0 citations51
US8728708B2May 20, 2014
Photosensitive resin composition, oxime sulfonate compound, method for forming cured film, cured film, organic EL display device, and liquid crystal display device
FUJIFILM CORP1 citations49
US11869559B2Jan 9, 2024
Magnetic tape having controlled water contact angle ratio, magnetic tape cartridge, and magnetic tape apparatus
FUJIFILM CORP0 citations48
US12057152B2Aug 6, 2024
Magnetic recording medium, magnetic tape cartridge, and magnetic recording and reproducing device
FUJIFILM CORP0 citations47
US10391803B2Aug 27, 2019
Image recording paper medium, method for manufacturing same, and image recording method
FUJIFILM CORP0 citations42
US9984711B2May 29, 2018
Magnetic recording medium and coating composition for magnetic recording medium
FUJIFILM CORP0 citations41
CANON KK
3 patentsUS9360666B2Jun 7, 2016
Plastics optical component and method for manufacturing the same
CANON KK6 citations83
US8947795B2Feb 3, 2015
Plastic optical element and method of manufacturing the same
CANON KK18 citations83
US9989674B2Jun 5, 2018
Plastics optical component and method for manufacturing the same
CANON KK1 citations51