Randall H Helland | Researchain

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Featured researches published by Randall H Helland.

Archive | 1992

Thermal dye bleach construction sensitive to ultraviolet radiation

Randall H Helland; George V. D. Tiers; Dian E. Stevenson

Archive | 1995

Dihydroperimidine squarylium dyes as antihalation and acutance materials for photographic and photothermographic articles

Charles W Gomez; Lori S. Harring; Randall H Helland; William D. Ramsden; Tran Van Thien

Archive | 1993

Thermal dye bleach construction

Jonathan Peter Kitchin; Mark P Kirk; Dian E. Stevenson; Randall H Helland

Archive | 1992

Thermal-dye-bleach construction comprising a polymethine dye and a thermal carbanion-generating agent

Randall H Helland; Sylvia A Farnum; Mark P Kirk; Jonathan Peter Kitchin; Roger A. Mader; Mark B Mizen; Richard A. Newmark; William D. Ramsden; Kumars Sakizadeh; Terence D. Spawn; Dian E. Stevenson; George V. D. Tiers

Archive | 1992

Photographic element containing a thermal dye bleach system

Jonathan Peter Kitchin; Mark P Kirk; Dian E. Stevenson; Randall H Helland

Archive | 1989

Infrared-sensitive photographic materials incorporating antihalation and/or acutance dye

Jonathan Peter Kitchin; Nicholas Eugenusz Grzeskowiak; Randall H Helland

Archive | 1994

Stabilized thermal-dye-bleach constructions

Randall H Helland; William D. Ramsden; Roger A C O Minnesota Mi Mader

Archive | 1988

Primer/antihalation coating for photothermographic constructions

Randall H Helland; Gregory J C O Minneso Mccarney

Archive | 1993

Tetra-alkylammonium phenylsulfonylacetate thermal-dye-bleach agents

Dian E. Stevenson; Mark P Kirk; Sylvia A Farnum; William C Frank; Randall H Helland; Jonathan Peter Kitchin; Roger A. Mader; Mark B Mizen; Richard A. Newmark; William D. Ramsden; Kumars Sakizadeh; Terence D. Spawn; George V. D. Tiers

Archive | 1986