Inventor
YAMAMOTO KATSUHISA
JP9 patents
⚠️ This page may combine multiple inventors who share the name “YAMAMOTO KATSUHISA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
3 patentsUS6297945B1Oct 2, 2001
Portable electronic terminal apparatus having a plurality of displays
RICOH KK233 citations97
USRE40204EApr 1, 2008
Portable electronic terminal apparatus having a plurality of displays
RICOH KK18 citations91
US7633180B2Dec 15, 2009
Electronic apparatus and starting method of the electronic apparatus
RICOH KK0 citations51