It looks like his final appearance in a game was Game One of the 1974 Nippon Series where he appeared in the starting lineup batting second as the shortstop. He was pinch hit for in the top of the first inning by Keisuke Senga so he never actually appeared in the field at shortstop. I'm guessing he was announced, stepped up to the plate to take an obligatory (but official) pitch and was then replaced by Senga.
He became a coach for the Orions after retiring. He actually had four separate stints coaching with the team - 1974-1979, 1984-1986, 1991-1995 and 2001-2002. He also scouted for Lotte, worked as a TV commentator and was a Far East scout for the Padres for a couple years in the late 1990's (but after the Hideki Irabu fiasco).
Here's a couple cards of him. To my knowledge he's only appeared in a handful of modern sets. Besides what I have here he was in the 2009 BBM Marines and the 2019 Epoch Lotte 50th Anniversary sets.
|1958 Marusan JCM 42|
|2002 BBM All Time Heroes #182|
|2009 BBM Lotte 40th Anniversary #10|