Inventor
SUNAGAWA SHOICHI
JP5 patents
Patents
5 patentsUS6236571B1May 22, 2001
Attachment device of portable electronic equipment and feature expanding unit of portable electronic equipment, and separation type feature expanding device of portable electronic equipment comprising attachment device and feature expanding unit
SANYO ELECTRIC CO49 citations94
US5959835ASep 28, 1999
Attachment device of portable electronic equipment and feature expanding unit of portable electronic equipment, and separation type feature expanding device of portable electronic equipment comprising attachment device and feature expanding unit
SANYO ELECTRIC CO24 citations91
US5737541AApr 7, 1998
Box for functional expansion of a portable electronic equipment
SANYO ELECTRIC CO57 citations91
US6560103B1May 6, 2003
Accessory of electronic device
SANYO ELECTRIC CO35 citations90
US6522533B1Feb 18, 2003
Accessory of electronic device
SANYO ELECTRIC CO25 citations90