Inventor
YAGYU DAISUKE
JP27 patents
⚠️ This page may combine multiple inventors who share the name “YAGYU DAISUKE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHOWA DENKO KK
16 patentsUS11225624B2Jan 18, 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
US10803898B2Oct 13, 2020
Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
SHOWA DENKO KK7 citations82
US11180457B2Nov 23, 2021
Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
SHOWA DENKO KK2 citations72
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
US12338407B2Jun 24, 2025
Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
SHOWA DENKO KK0 citations59
US11045471B2Jun 29, 2021
Melanin production inhibitor, whitening agent, fibroblast activator, collagen and/or elastin production promotor and wrinkle ameliorant
SHOWA DENKO KK0 citations56
US10646487B2May 12, 2020
Melanin production inhibitor, whitening agent, fibroblast activator, collagen and/or elastin production promotor and wrinkle ameliorant
SHOWA DENKO KK1 citations56
US10654882B2May 19, 2020
Nicotinamide mononucleotide derivative and salt thereof, method for producing same, topical skin preparation, cosmetic and food additive
SHOWA DENKO KK0 citations51
US10112890B2Oct 30, 2018
Compound, salt of compound, external agent for skin, cosmetic, and food additive
SHOWA DENKO KK0 citations48
RESONAC CORP
10 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
US12100434B2Sep 24, 2024
Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
RESONAC CORP0 citations60
US11820953B2Nov 21, 2023
Fluorine-containing ether compound, lubricant for magnetic recording medium and magnetic recording medium
RESONAC CORP0 citations60
US12531088B2Jan 20, 2026
Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
RESONAC CORP0 citations45
US12518787B2Jan 6, 2026
Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
RESONAC CORP0 citations45
US12486357B2Dec 2, 2025
Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
RESONAC CORP0 citations45