Inventor
HAMA MASAYUKI
JP27 patents
⚠️ This page may combine multiple inventors who share the name “HAMA MASAYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
26 patentsUS9665023B2May 30, 2017
Toner and two-component developer
CANON KK53 citations98
US8927188B2Jan 6, 2015
Method of producing magnetic carrier and magnetic carrier that uses this production method
CANON KK60 citations98
US10599060B2Mar 24, 2020
Toner
CANON KK21 citations94
US10564560B2Feb 18, 2020
Toner
CANON KK25 citations94
US10474049B2Nov 12, 2019
Toner
CANON KK32 citations94
US10451986B2Oct 22, 2019
Toner
CANON KK32 citations94
US10423086B2Sep 24, 2019
Toner
CANON KK22 citations94
US10401748B2Sep 3, 2019
Toner
CANON KK35 citations94
US10274851B2Apr 30, 2019
Toner
CANON KK27 citations94
US10197936B2Feb 5, 2019
Toner
CANON KK39 citations94
US10175595B2Jan 8, 2019
Toner
CANON KK41 citations94
US10146146B2Dec 4, 2018
Toner and method of producing toner
CANON KK38 citations94
US10082743B2Sep 25, 2018
Toner
CANON KK35 citations94
US10036970B2Jul 31, 2018
Magenta toner
CANON KK36 citations94
US9651883B2May 16, 2017
Toner
CANON KK41 citations94
US9348253B2May 24, 2016
Image-forming method
CANON KK45 citations94
US8921023B2Dec 30, 2014
Magnetic carrier and two-component developer
CANON KK51 citations94
US7135263B2Nov 14, 2006
Toner
CANON KK42 citations92
US6430384B2Aug 6, 2002
Developer-carrying member having exposed surface containing graphite or molybdenum disulfide particles
CANON KK26 citations92
US11131939B2Sep 28, 2021
Toner
CANON KK14 citations85
US11662670B2May 30, 2023
Toner
CANON KK3 citations73
US12386280B2Aug 12, 2025
Toner
CANON KK0 citations61
US10620556B2Apr 14, 2020
Toner
CANON KK0 citations52
US12547090B2Feb 10, 2026
Toner
CANON KK0 citations50
US12578666B2Mar 17, 2026
Toner and method for producing toner
CANON KK0 citations47
US10048610B2Aug 14, 2018
Toner and method for manufacturing toner
CANON KK0 citations41