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Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Frank Janssen is active.

Publication


Featured researches published by Frank Janssen.


Archive | 2003

Method and video processing unit for processing a video signal

Sven Salzer; Frank Janssen


Archive | 2010

Two-phase developer

Marc Krippahl; Frank Janssen; Armin Wadle; Susanne Hagenow; Sabine Dr. Babiel


Archive | 2005

Memory interface and data processing system

Frank Janssen; Ralf Hubrich


Archive | 2012

Agents for oxidatively changing the colour of keratin-containing fibres

Konstantin Goutsis; Frank Janssen; Ina Franke


Archive | 2011

Viscosity-producing two phase developer with a clear oil phase for oxidative colour modifying agents

Konstantin Goutsis; Frank Janssen; Armin Wadle; Marc Krippahl


Archive | 2011

Colour preservation by means of conditioning agents containing reducing agents

Konstantin Goutsis; Frank Janssen; Zur Wiesche Erik Schulze


Archive | 2010

Process for preparing a colouring composition

Frank Janssen; Jürgen Schöpgens; Armin Wadle; Thomas Förster; Lisa Chen


Archive | 2010

Method for producing stable emulsions, in particular sunscreen formulations

Sevda Yücel; Marianne Waldmann-Laue; Susanne Dickhof; Frank Janssen


Archive | 2014

Foam dying agents with improved application properties

Bernd Anderheggen; Frank Janssen; Constanze Neuba; Norbert Schettiger


Archive | 2013

Multi-step staining Tonale I

Constanze Neuba; Frank Janssen

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