Radiant energy – Invisible radiant energy responsive electric signalling – Semiconductor system
Reexamination Certificate
2007-02-20
2007-02-20
Porta, David (Department: 2884)
Radiant energy
Invisible radiant energy responsive electric signalling
Semiconductor system
C378S154000, C378S155000
Reexamination Certificate
active
11320943
ABSTRACT:
A radiation image taking apparatus includes a case that contains a radiation detecting unit that has a detection surface in which a photoelectric conversion element that detects a radiation transmitted through an object is located, a grid unit which is detachably attachable to an outside of the case and removes a scattered radiation, and a photo timer unit which is detachably attachable to the outside of the case and measures a dose of the radiation. One of a first mode in which the grid unit is attached to the case, a second mode in which the photo timer unit is attached to the case, and a third mode in which the grid unit is attached to the second mode can be freely used in configuration.
REFERENCES:
patent: 4258264 (1981-03-01), Kotera et al.
patent: 4457010 (1984-06-01), Jenkins et al.
patent: 6064720 (2000-05-01), Piscitelli et al.
patent: 6434218 (2002-08-01), Matsumoto
patent: 2002/0090055 (2002-07-01), Zur et al.
patent: 55-012429 (1980-01-01), None
patent: 56-011395 (1981-02-01), None
Canon Kabushiki Kaisha
Porta David
Vu Mindy
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