Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Poon; Stephen S. C.
Address:
Harlow, GB2
No. of patents:
4
Patents:












Patent Number Title Of Patent Date Issued
4981775 Photothermographic elements January 1, 1991
A photothermographic element comprising a support bearing an image forming system comprising:(a) a photosensitive silver halide(b) an organic silver compound(c) a polymer binder and(d) a reducing agent for the organic silver compound, characterized in that the reducing agent comprises a redo
4594312 Heat bleachable dye systems June 10, 1986
Photothermographic elements containing heat bleachable acutance/antihalation dyes and thermographic elements employing heat bleachable dyes of the formula: ##STR1## in which: n is 2, 3, 4 or 5,at least one of R.sup.1 to R.sup.4 represent hydrogen and the remainder of R.sup.1 to R
4581323 Photothermographic element having topcoat bleachable antihalation layer April 8, 1986
A photothermographic element comprising a reflective base having coated thereon one or more layers constituting a photothermographic imaging medium in which a bleachable antihalation medium is coated over said photothermographic imaging medium, the components of the antihalation medi
4548896 Dye-bleach materials and process October 22, 1985
An imagewise bleachable composition is described comprising a dye in reactive association with a mesoionic compound. The composition may be bleached by radiation at wavelengths between 200 and 1000 nm.










 
 
  Recently Added Patents
Novelty snacks and method of manufacture of same
Integrated emergency medical database system
Touch panel structure and manufacturing method thereof
Test framework of visual components in a multitenant database environment
Sample analysis and/or sample processing system
Resistive memory element sensing using averaging
Integrated circuit packaging system with coupling features and method of manufacture thereof
  Randomly Featured Patents
Methods for forming area-efficient scan chains in integrated circuits, and integrated circuits embodying the same
Closed-end fishing reel
Process for the preparation of tertiary olefins
Electrostatic chuck
Methods and apparatuses for correcting mechanical twist in optical fiber
Method and apparatus for the operation of a boiler installation with stoker firing
Holder
Welding by hot isostatic pressing (HIP)
Metal head for use in a golf club
Multi-task interactive wireless telecommunications device