Patents
.us
Search
Marketplace
Patent My Idea
Patents
/
Inventors
Tadashi Matsui
Tokyo
JP
3 patents
2 Patents
US12547842
2026
Dialogue Support System and Dialogue Support Method
HITACHI, Ltd.
0 cites
US12549899
2026
Notification Sound Generation Device
TOYOTA JIDOSHA KABUSHIKI KAISHA
0 cites