Issued Patents All Time
Showing 101–101 of 101 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6405834 | Elevator maintenance/operation apparatus | Junichiro Ishikawa, Shigeki Yamakawa, Hiroshi Ando, Kunio Katou | 2002-06-18 |
AC
Akihiro Chida
Semiconductor Energy Laboratory: 93 patents #101 of 1,113Top 10%
Overall (All Time): #14,212 of 4,157,543Top 1%
101
Patents All Time