I was born in 1962 and licensed as JH7PKU in 1976 at the age of 14, and have primarily been using this callsign ever since. Ex-calls include 3DA0JA, AA3JA, JF0JYP, K6I (WRTC'96), KJ5JL, V8JA, and I am an ex-member of various radio clubs including University of Tokyo (JA1YWX/JA1ZLO/JG1ZUY, '81-'90), University of Pennsylvania (N3KZ, '94-'96) and Frankford Radio Club (Philadelphia, '94-'96).
I have been active in both DX and Japanese domestic contests from home and places such as 3DA, FG, JA1, JA8, KH0, V85 and W3. Currently access to my home contest station in Fukushima-prefecture is limited due to the Fukushima nuclear power plant failure which occurred in the Earthquake and Tsunami in 2011.
I manage to maintain my activity from my residential QTH in Niigata-prefecture. For me, DXing is not only for DXCC or IOTA credits. I enjoy working expeditions from geographically rare or ethnically exotic locations, and also stations in well-populated countries/areas. I like conventional modes, CW and SSB, as well as exchanging paper QSL cards in an old-fashioned way. Professionally, I am a research chemist, specializing in Synthetic Organic Chemistry, and work in the R&D section of a chemical industry.