Obokata was the primary researcher involved in the STAP cell fiasco in which two ultimately retracted Nature papers contained duplicated, plagiarized, and manipulated data. She was certainly not the only researcher on those papers, but overall she has been accused of having the most central role in the STAP problems. Obokata left RIKEN late in 2014.
During the height of the STAP cell mess the Japanese media hounded Obokata and other STAP cell authors including Yoshiki Sasai, who ultimately committed suicide. From accounts in Japan, the STAP cell story was on the equivalent of the nightly news and on the front of national newspapers and tabloids almost every day for a time.
For instance, NHK was incredibly persistent with pursing Obokata and now Obokata has said that they violated her human rights in a complaint to the Japanese Broadcasting Ethics & Program Improvement Organization or BPO. Obokata asserts that NHK violated her rights in numerous ways including accusing her of stealing embryonic stem cells and she sustained injuries while being pursued by NHK. BPO will be investigating these and other assertions by Obokata against NHK.
During the STAP cell mess last year, it seems because I was covering the STAP cell claims and science here on this blog, many members of the Japanese media emailed and called me. I can understand that they were looking for information and perspectives, but it went out of control in certain cases. Some, including reporters saying they were from NHK, were very aggressive with me. They some persistently called me at work and even at home in the middle of the night.
I had decided to not talk with them because of their aggressiveness and their tendency to focus on negative, personal stories rather than the science and facts, but they wouldn’t take “no” for an answer. Several pursued me for comment at conferences too. I don’t have direct knowledge of what happened with Obokata and NHK, but my sense is that the media went way out of bounds on STAP and made it personal.