Inventor

ISHIDAI KEIKO

JP9 patents

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

DAIFUKU KOJI

2 patents

US8729285B2May 20, 2014

Copper complex compound and electrophotographic toner containing the same

DAIFUKU KOJI0 citations44

US8329368B2Dec 11, 2012

Electrophotographic toner

DAIFUKU KOJI1 citations44

OOKUBO KIMIHIKO

2 patents

US8269018B2Sep 18, 2012

Pyrazolotriazole compound and electrophotographic toner

OOKUBO KIMIHIKO0 citations43

US8846965B2Sep 30, 2014

Toner for electrophotography and metal-containing compound

OOKUBO KIMIHIKO0 citations42

KONICA MINOLTA INC

1 patent

US10483471B2Nov 19, 2019

Organic electroluminescent element, method for producing organic electroluminescent element, display, and lighting device

KONICA MINOLTA INC4 citations71

KONISHIROKU PHOTO IND

1 patent

US6248512B1Jun 19, 2001

Thermally processable photosensitive material, image forming method and antifoggant

KONISHIROKU PHOTO IND6 citations61

KONICA MINOLTA BUSINESS TECH

1 patent

US7943279B2May 17, 2011

Copper complex compound and electrophotographic toner containing the same

KONICA MINOLTA BUSINESS TECH0 citations48

KONICA MINOLTA MED & GRAPHIC

1 patent

US7270938B2Sep 18, 2007

Photopolymerizable composition, light sensitive planographic printing plate material and manufacturing method of planographic printing plate

KONICA MINOLTA MED & GRAPHIC0 citations48

ISHIDAI KEIKO

1 patent

US9062225B2Jun 23, 2015

Production process for colorant, colorant composition, toner, ink for ink jet recording and color filter

ISHIDAI KEIKO0 citations41