Inventor
ICHIYAMA YOSHIHITO
JP4 patents
Patents
4 patentsUS7839627B2Nov 23, 2010
Portable electronic apparatus
SONY CORP28 citations91
US5418841AMay 23, 1995
Telephone answering machine with non-volatile memory
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US12062233B2Aug 13, 2024
Information processing apparatus and information processing method
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US6504911B1Jan 7, 2003
Telephone device
SONY CORP0 citations36