The Shimadzu Corporation maintains a small museum in their Kyoto headquarters, and there's also a description of the exhibit (in Japanese) on their main website. The upper part of that page is reproduced here, and alongside (aided by AltaVista's Babel Fish translation service) my attempt at an English rendition of the text.
The lower part of the page lists other items on display, including a bronze bust of Röntgen (seen at the left of the upper photograph) and contributions from the German Röntgen Museum.
Section 5:
Exhibits relating to X-ray equipment
Since the successful production of x-ray photographs in 1896, Shimadzu Manufacturing has endeavored to pioneer new medical devices, and extend the boundaries of the field.
The exhibit offers a summary of the historical development of x-ray tubes, x-ray systems and applications, displaying a large number of photographs and literature
Early X-Ray photograph
Shimadzu Manufacturing succeeded in producing x-ray photographs (radiographs) on October 10th 1896, only 10 months after Dr Röntgen's discovery.
"Diana" model X-ray generator for medical applications
Produced between 1918 and the 1930's this was a market leader. An unusual "mechanical cable" type commutator for DC (high voltage) production is used in the splendid wooden cabinet.
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