Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5642403 | Portable telephone set tracking connection system in mobile communication network | — | 1997-06-24 |
| 5631939 | Initial core of nuclear power plant | Hiroko Haraguchi, Yoshihiri Iwashita, Toshiro Yoshioka, Akihiro Yamanaka, Mitsunari Nakamura +1 more | 1997-05-20 |