Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5858541 | Glass composite material, precursor thereof, nitrogen-containing composite material and optical device | Toshiro Hiraoka, Yutaka Majima, Kenji Todori, Yoshihiko Nakano, Shinji Murai +1 more | 1999-01-12 |
| 5717051 | Glass composite material, precursor thereof, nitrogen-containing composite material and optical device | Toshiro Hiraoka, Yutaka Majima, Kenji Todori, Yoshihiko Nakano, Shinji Murai +1 more | 1998-02-10 |