Inventor
MUROFUSHI KATSUMI
JP44 patents
⚠️ This page may combine multiple inventors who share the name “MUROFUSHI KATSUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHOWA DENKO KK
31 patentsUS5362592ANov 8, 1994
Decolorizable toner
SHOWA DENKO KK70 citations95
US5166041ANov 24, 1992
Near infrared ray-decolorizable recording material
SHOWA DENKO KK88 citations95
US7157788B2Jan 2, 2007
Metal oxide dispersion for dye-sensitized solar cells, photoactive electrode and dye-sensitized solar cell
SHOWA DENKO KK16 citations92
US5607803AMar 4, 1997
Decolorizable toner and a decolorizable toner production process
SHOWA DENKO KK47 citations92
US11332686B2May 17, 2022
Fluorine-containing ether compound, lubricant for magnetic recording medium and magnetic recording medium
SHOWA DENKO KK7 citations85
US11639330B2May 2, 2023
Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
SHOWA DENKO KK9 citations84
US11427779B2Aug 30, 2022
Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
SHOWA DENKO KK8 citations84
US11279664B2Mar 22, 2022
Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
SHOWA DENKO KK11 citations84
US11261394B2Mar 1, 2022
Fluorine-containing ether compound, lubricant for magnetic recording media, and magnetic recording medium
SHOWA DENKO KK12 citations84
US11220649B2Jan 11, 2022
Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
SHOWA DENKO KK7 citations84
US11011200B2May 18, 2021
Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
SHOWA DENKO KK11 citations84
US5846682ADec 8, 1998
Light decolorizable recording material, ink and toner
SHOWA DENKO KK18 citations84
US8349934B2Jan 8, 2013
Hardening composition and hardened product thereof
SHOWA DENKO KK7 citations83
US10803898B2Oct 13, 2020
Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
SHOWA DENKO KK7 citations82
US7579066B2Aug 25, 2009
Ethylenically unsaturated group-containing isocyanate compound and process for producing the same, and reactive monomer, reactive (meth) acrylate polymer and its use
SHOWA DENKO KK14 citations82
US5449583ASep 12, 1995
Method of making decolorizable toner
SHOWA DENKO KK15 citations74
US7544536B2Jun 9, 2009
Metal oxide dispersion for dye-sensitized solar cells, photoactive electrode and dye-sensitized solar cell
SHOWA DENKO KK7 citations73
US11292979B2Apr 5, 2022
Fluorine-containing ether compound, lubricant for magnetic recording medium and magnetic recording medium
SHOWA DENKO KK3 citations72
US11180457B2Nov 23, 2021
Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
SHOWA DENKO KK2 citations72
US11126695B2Sep 21, 2021
Polymer design device, polymer design method, and non-transitory recording medium
SHOWA DENKO KK3 citations72
US11555005B2Jan 17, 2023
Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
SHOWA DENKO KK2 citations70
US11767483B2Sep 26, 2023
Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
SHOWA DENKO KK0 citations62
US11661408B2May 30, 2023
Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
SHOWA DENKO KK0 citations62
US11244700B2Feb 8, 2022
Magnetic recording medium, sputtering target, sputtering target manufacturing method, and magnetic storage apparatus
SHOWA DENKO KK0 citations62
US6033829AMar 7, 2000
Photopolymerizable composition and dry film resist
SHOWA DENKO KK4 citations62
US7622613B2Nov 24, 2009
Thiol compound and photosensitive composition using the same
SHOWA DENKO KK1 citations61
US11514945B2Nov 29, 2022
Lubricant for magnetic recording medium, and method for producing magnetic recording medium
SHOWA DENKO KK0 citations59
US8053167B2Nov 8, 2011
Curable compositions containing hydroxythiol compound, and cured products thereof
SHOWA DENKO KK1 citations51
US7714032B2May 11, 2010
Thiol compound and photosensitive composition using the same
SHOWA DENKO KK0 citations50
US11661478B2May 30, 2023
Magnetic recording medium, fluorine-containing ether compound and lubricant for magnetic recording medium
SHOWA DENKO KK0 citations48
US4833256AMay 23, 1989
Fluoran derivatives and recording material containing the same
SHOWA DENKO KK0 citations48
RESONAC CORP
5 patentsUS11820742B2Nov 21, 2023
Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
RESONAC CORP3 citations71
US12129445B2Oct 29, 2024
Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
RESONAC CORP0 citations62
US11912824B2Feb 27, 2024
Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
RESONAC CORP0 citations62
US11845906B2Dec 19, 2023
Fluorine-containing ether compound, lubricant for magnetic recording medium and magnetic recording medium
RESONAC CORP0 citations62
US12057151B2Aug 6, 2024
Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
RESONAC CORP0 citations61
BANDO CHEMICAL IND
3 patentsUS5572311ANov 5, 1996
Apparatus for decolorizing toner images and an image forming apparatus
BANDO CHEMICAL IND61 citations94
US5814427ASep 29, 1998
Decolorizable toner and process for preparing the same
BANDO CHEMICAL IND29 citations91
US5405726AApr 11, 1995
Method and apparatus for decolorization, and image forming apparatus
BANDO CHEMICAL IND15 citations80