Inventor
TSUTSUI YUICHIRO
JP22 patents
⚠️ This page may combine multiple inventors who share the name “TSUTSUI YUICHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
6 patentsUS6243583B1Jun 5, 2001
Communication system
CANON KK40 citations92
US5602910AFeb 11, 1997
Control apparatus for switching station connections using a holding tone
CANON KK21 citations92
US5594944AJan 14, 1997
Communication channel selection method
CANON KK25 citations92
US5408527AApr 18, 1995
Exchange system and method of connecting calls in said exchange system
CANON KK46 citations92
US5138655AAug 11, 1992
Telephone apparatus capable of setting card unit therein
CANON KK28 citations92
US5771457AJun 23, 1998
Connection between interfaces and terminals in cordless telephone system
CANON KK15 citations74
JCM AMERICAN CORP
4 patentsUS10235839B2Mar 19, 2019
Electronic voucher ticket system
JCM AMERICAN CORP7 citations84
US10970967B2Apr 6, 2021
Electronic voucher ticket system
JCM AMERICAN CORP5 citations73
US10318942B2Jun 11, 2019
Electronic voucher ticket system
JCM AMERICAN CORP5 citations73
US10235838B2Mar 19, 2019
Electronic voucher ticket system
JCM AMERICAN CORP1 citations62
NETZERO INC
2 patentsTSUTSUI YUICHIRO
2 patentsTECHFIRM INC
2 patentsUS7660858B2Feb 9, 2010
Mail distributing apparatus, program and mail transmitting method capable of shortening average wait time for completing transmission of mails
TECHFIRM INC4 citations61
US10460537B2Oct 29, 2019
Gate control method, authentication device, and gate control system
TECHFIRM INC0 citations39