Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Electronic device with calendar function

Electronic device with calendar function

US Patent 4964072 · Granted Oct 16, 1990

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Application terminal2004
Portable electronic device and loyalty point system2002
Card reader/writer and communication method of card reader writer2002
IC card system and method for securing the system2001
Overcurrent protection circuit and overcurrent protection method of the circuit1999
Bar-code field detecting apparatus performing differential process and bar-code 1998
IC card reader/writer1998
Battery operated portable terminal device and method of operation1995
Portable electronic device having a memory with restricted access in off-line mo1992
Power supply reliability of portable electronic device1992
Electrically powered portable medium1991
Apparatus for inspecting the molded case of an IC device1990