Hemmi made a range of Bamboo based slide rules under their own name using
the brand SUN, as well as manufacturing rules for a number of other companies,
most notably Frederick Post and Hughes-Owens.
Peter Hopp estimates that during the years that Hemmi made slide rules their
total production was approximately 15 million rules. That is a lot of bamboo!
This site displays a number of Hemmi rules under other brand names such as