See: http://forum.pentaxfans.net/thread-130327-1-1.html (Traditional Chinese)
Via: http://www.pentaxforums.com/forums/pentax-news-rumors/199899-hirakawa-jun-back-pentax-ricoh.html
What the crop picture in the original opening post is just about the names of two inventors of something, Takayuki Ito (伊藤 孝之) and Jun Hirakawa (平川 纯), with their (same) correspondence address under their names. Possibly that thing is the FA31/1.8 Limited, which was designed by them. Just!
Update: The original OP has edited his post and clarified that the registered design patent was for the DA10-17 Fisheye lens, which was also co-developed by the two designers.
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