Inventor

TAKEUCHI MASAKO

JP13 patents

⚠️ This page may combine multiple inventors who share the name “TAKEUCHI MASAKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MITSUBISHI CHEM CORP

6 patents

US8022617B2Sep 20, 2011

Organic compound, charge-transporting material, composition for charge-transporting material and organic electroluminescent device

MITSUBISHI CHEM CORP7 citations81

US7777043B2Aug 17, 2010

Compound, charge transporting material and organic electroluminescent element

MITSUBISHI CHEM CORP10 citations81

US5629124AMay 13, 1997

Charge controlling agent for electrostatic image development, and toner and charge-imparting material employing it

MITSUBISHI CHEM CORP8 citations74

US5721084AFeb 24, 1998

Charge controlling agent for electrostatic image development, and toner and charge-imparting material employing it

MITSUBISHI CHEM CORP2 citations63

US5545502AAug 13, 1996

Electrostatic image-developing toner

MITSUBISHI CHEM CORP3 citations62

US8877355B2Nov 4, 2014

Monoamine compound, charge-transporting material, and organic electroluminescent device

MITSUBISHI CHEM CORP2 citations61

MITSUBISHI CHEM IND

4 patents

US5200288AApr 6, 1993

Electrostatic developing toner with hydroxyaromatic carboxylic acid additive

MITSUBISHI CHEM IND19 citations80

US5385799AJan 31, 1995

Toner for development of electrostatic image

MITSUBISHI CHEM IND8 citations73

US5166030ANov 24, 1992

Electrostatic image-developing toner containing a quaternary ammonium charge controlling agent

MITSUBISHI CHEM IND8 citations73

US5231173AJul 27, 1993

Disazo metal chelate compounds for optical recording media

MITSUBISHI CHEM IND4 citations61

YABE MASAYOSHI

2 patents

US8178215B2May 15, 2012

Organic compound containing at least two carbazolyl-substituted phenyl structures; charge-transporting material and organic el element containing the compound

YABE MASAYOSHI11 citations82

US8427046B2Apr 23, 2013

Monoamine compound, charge-transporting material, and organic electroluminescent device

YABE MASAYOSHI1 citations50

IIDA KOICHIRO

1 patent

US8168307B2May 1, 2012

Organic compound, charge transport material and organic electroluminescent device

IIDA KOICHIRO7 citations83