Inventor
YAMANAKA SHUN-ICHIRO
JP17 patents
⚠️ This page may combine multiple inventors who share the name “YAMANAKA SHUN-ICHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ORIENT CHEMICAL IND
16 patentsUS5976749ANov 2, 1999
Metal compound of aromatic hydroxycarboxylic acid, charge control agent, toner, and powdery paint
ORIENT CHEMICAL IND18 citations92
US5952145ASep 14, 1999
Calix arene charge control agent and toner for developing electrostatic images
ORIENT CHEMICAL IND20 citations92
US5501934AMar 26, 1996
Chargeable resin powder
ORIENT CHEMICAL IND39 citations92
US6197467B1Mar 6, 2001
Charge control agent, manufacturing process therefor and toner
ORIENT CHEMICAL IND20 citations83
US5990332ANov 23, 1999
Metal compound of aromatic hydroxycarboxylic acid, charge control agent, toner, and powdery paint
ORIENT CHEMICAL IND14 citations73
US5843611ADec 1, 1998
Monoazo metal compound, composition thereof, charge control agent, toner and powdery paint
ORIENT CHEMICAL IND13 citations73
US5736289AApr 7, 1998
Toner for developing electrostatic images
ORIENT CHEMICAL IND13 citations73
US5518852AMay 21, 1996
Negative charge control agent and toner for developing electrostatic image
ORIENT CHEMICAL IND9 citations73
US6548648B1Apr 15, 2003
Process for preparing a monoazo metal complex salt compound for charge control agent and toner for developing electrostatic images
ORIENT CHEMICAL IND9 citations72
US6762004B2Jul 13, 2004
Charge control agent and toner for developing electrostatic images
ORIENT CHEMICAL IND7 citations70
US6534231B1Mar 18, 2003
Charge control agent and toner for developing electrostatic images
ORIENT CHEMICAL IND6 citations70
US5407774AApr 18, 1995
Charge control agent and positively chargeable toner for developing electrostatic images
ORIENT CHEMICAL IND17 citations70
US6153735ANov 28, 2000
Monoazo metal compound, composition thereof, charge control agent, toner and powdery paint
ORIENT CHEMICAL IND2 citations62
US6756485B2Jun 29, 2004
Process for preparing a monoazo metal complex salt compound for charge control agent and toner for developing electrostatic images
ORIENT CHEMICAL IND4 citations61
US5501932AMar 26, 1996
Charge control agent and toner for developing electrostatic images
ORIENT CHEMICAL IND2 citations52
US5470685ANov 28, 1995
Toner for developing electrostatic images
ORIENT CHEMICAL IND1 citations52