Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5171620 | Honeycomb core | Hajime Gotoh, Toshihiro Hattori, Tadasi Yokochi, Setsuo Kashiyama | 1992-12-15 |
YS
Yukihiro Sumikawa
Overall (All Time): #3,865,595 of 4,157,543Top 95%
1
Patents All Time