Patents
.us
Search
Marketplace
Patent My Idea
Patents
/
Inventors
Masanobu Kawamura
Yokohama
JP
3 patents
2 Patents
US12429657
2025
Optical Device and Manufacturing Method for Optical Device
Sumitomo Electric Industries, Ltd.
0 cites
US11901946
2024
Optical Transmitter
Sumitomo Electric Device Innovations, Inc.
0 cites