This and post #1072879, post #1072882, and post #1072884 represent each of the JR Group companies that operate shinkansen (JR Shikoku doesn't, and JR Hokkaido hadn't taken delivery of its first two H5s when these images were posted and won't begin services on the Hokkaido Shinkansen until next year. The three non-passenger service JRs of course don't run shinkansen either.)