Inventor

DUAN HAILING

US7 patents

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

FUJI HUNT PHOTO CHEM

6 patents

US5993668ANov 30, 1999

Method for removing metal ions and/or complexes containing metal ions from a solution

FUJI HUNT PHOTO CHEM72 citations93

US5914221AJun 22, 1999

Single part color photographic processing composition in slurry form

FUJI HUNT PHOTO CHEM20 citations88

US5728295AMar 17, 1998

Apparatus for removing metal ions and/or complexes containing metal ions from a solution

FUJI HUNT PHOTO CHEM13 citations71

US6770429B2Aug 3, 2004

Single part color photographic developer concentrate

FUJI HUNT PHOTO CHEM2 citations60

US6197484B1Mar 6, 2001

Method of making a single part color photographic processing composition in slurry form

FUJI HUNT PHOTO CHEM2 citations58

US6126840AOct 3, 2000

Process for removing silver in the presence of iron from waste effluent

FUJI HUNT PHOTO CHEM4 citations53

TORAY INDUSTRIES

1 patent

US9452963B2Sep 27, 2016

Method for producing 1,3-butadiene and/or 3-buten-2-ol

TORAY INDUSTRIES0 citations51