Visualising the Change of Ownership in the History of Pentax from the Product Labels

In reversing time order..

4. 2012: Pentax Ricoh Imaging Company:-

A Ricoh K-5:-



Source: A DPR Forum Post

3.5. 2011-12: Transitional Period from Hoya to PRIC:-



Label and documentation are showing Hoya but there is a notice of change of ownership included in the box.

Source: Changing the Focusing Screen of K-5 - Tips and Techniques

3. 2007-2011: Hoya Corporation:-

A Hoya K-5's bottom:-



K-5 is a Pentax DSLR model which carries both a Hoya and a Ricoh label for the units manufactured before and after.. Btw, mine is a Hoya unit.

Source: Imaging Resource

And my Optio WG-1 GPS purchased last summer:-



Source: My Take (Tick) on the WG-1 GPS! ;-)

2. 2001-2006: Pentax Corporation:-

My K100D:-



Source: Where are the Pentax DSLRs and Lenses Made?

1. 2001 and before: Asahi Optical Company:-

The bottom labels of my MZ-S and Optio 330:-



Source: Where are the Pentax DSLRs and Lenses Made?