United States Patent 10,143,929
Ogasawara , et al. December 4, 2018
Portable electronic device
http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=
HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=7&
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Ogasawara , et al. December 4, 2018
Portable electronic device
http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=
HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=7&
f=G&l=50&co1=AND&d=PTXT&s1=%22sony+interactive+entertainment%
22&OS=%22sony+interactive+entertainment%22&RS=%22sony+interactive
+entertainment%22
上のimagesを開くとPSPが出てくる