Inventor
SUGIURA TAKAO
JP23 patents
⚠️ This page may combine multiple inventors who share the name “SUGIURA TAKAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
POWDERTECH CO LTD
17 patentsUS6210850B1Apr 3, 2001
Carrier for electrophotographic developer and electrophotographic developer containing the same
POWDERTECH CO LTD12 citations73
US11014826B2May 25, 2021
Ferrite particles, resin composition and resin film
POWDERTECH CO LTD2 citations71
US10825593B2Nov 3, 2020
Ni—Zn—Cu ferrite particle, resin composition, and resin molding
POWDERTECH CO LTD3 citations71
US10564561B2Feb 18, 2020
Ferrite carrier core material for electrophotographic developer, ferrite carrier for electrophotographic developer, electrophotographic developer, and method for manufacturing ferrite carrier core material for electrophotographic developer
POWDERTECH CO LTD2 citations71
US11651881B2May 16, 2023
Mn—Zn ferrite particles, resin molded body, soft magnetic mixed powder, and magnetic core
POWDERTECH CO LTD0 citations61
US11542174B2Jan 3, 2023
Ferrite particles, resin compositions and electromagnetic wave shielding material
POWDERTECH CO LTD0 citations61
US11521768B2Dec 6, 2022
Ferrite powder, resin composition, and molded body
POWDERTECH CO LTD0 citations61
US11150569B2Oct 19, 2021
Ferrite carrier core material for electrophotographic developer, carrier for electrophotographic developer, and developer
POWDERTECH CO LTD0 citations57
US12595188B2Apr 7, 2026
Ferrite powder, ferrite resin composite material, and electromagnetic shielding material, electronic material, or electronic component
POWDERTECH CO LTD0 citations54
US12119151B2Oct 15, 2024
Ferrite powder and method of producing the same
POWDERTECH CO LTD0 citations54
US10603614B2Mar 31, 2020
Ferrite particles having outer shell structure used for filtering medium
POWDERTECH CO LTD0 citations51
US10585369B2Mar 10, 2020
Ferrite particle having outer shell structure
POWDERTECH CO LTD0 citations51
US10258970B2Apr 16, 2019
Ferrite particles provided with outer shell structure for catalyst supporting medium
POWDERTECH CO LTD0 citations51
US9588453B2Mar 7, 2017
Resin-filled ferrite carrier for electrophotographic developer and electrophotographic developer using the ferrite carrier
POWDERTECH CO LTD0 citations51
US9201328B2Dec 1, 2015
Core material for resin-filled ferrite carrier and ferrite carrier for electrophotographic developer, and electrophotographic developer using the ferrite carrier
POWDERTECH CO LTD0 citations51
US8026033B2Sep 27, 2011
Ferrite carrier for electrophotographic developer and electrophotographic developer
POWDERTECH CO LTD0 citations51
US10775711B2Sep 15, 2020
Ferrite carrier core material for electrophotographic developer, ferrite carrier for electrophotographic developer, electrophotographic developer, and method for manufacturing ferrite carrier core material for electrophotographic developer
POWDERTECH CO LTD0 citations39
SUGIURA TAKAO
4 patentsUS9557682B2Jan 31, 2017
Resin-coated carrier for electrophotographic developer and electrophotographic developer using the resin-coated carrier
SUGIURA TAKAO1 citations49
US8431311B2Apr 30, 2013
Resin-filled carrier for electrophotographic developer, and electrophotographic developer using the resin-filled carrier
SUGIURA TAKAO0 citations48
US8168364B2May 1, 2012
Resin-filled carrier for electrophotographic developer, and electrophotographic developer using the resin-filled carrier
SUGIURA TAKAO0 citations48
US8475988B2Jul 2, 2013
Resin-filled ferrite carrier core material for electrophotographic developer, ferrite carrier and electrophotographic developer using the ferrite carrier
SUGIURA TAKAO2 citations46