There are 18 Mitsubishi MU-300 aircraft on the U.S. registry that TailWiki has a page for. Every one is built from the public FAA record — year, serial, engine, home base, and registration history — and owners and pilots add photos, trips, and stories on top. The ones listed here were built between 1980 and 1984.
N250GP
1984 Mitsubishi MU-300
Rllng Hls Est, CA
N44MM
1984 Mitsubishi MU-300
Wilmington, DE
N60EF
1984 Mitsubishi MU-300
North Salt Lake, UT
N765KC
1984 Mitsubishi MU-300
Denison, TX
N94LD
1984 Mitsubishi MU-300
Pompano Beach, FL
N200LP
1983 Mitsubishi MU-300
Oklahoma City, OK
N442EA
1983 Mitsubishi MU-300
San Antonio, TX
N907MX
1983 Mitsubishi MU-300
North Salt Lake, UT
N400GK
1982 Mitsubishi MU-300
Petersburg, VA
N405MG
1982 Mitsubishi MU-300
Alpharetta, GA
N399DM
1980 Mitsubishi MU-300
Wilmington, DE
N103HC
Mitsubishi MU-300
Columbus, OH
N2WC
Mitsubishi MU-300
Columbus, OH
N301AE
Mitsubishi MU-300
Page, AZ
N37CB
Mitsubishi MU-300
Miami, FL
N400HH
Mitsubishi MU-300
Oldwick, NJ
N400UF
Mitsubishi MU-300
Orlando, FL
N600GW
Mitsubishi MU-300
Dover, DE