Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8012218 | Medical bone prosthetic material and process for producing the same | Kunio Ishikawa, Masaharu Nakagawa, Kouichi Udou | 2011-09-06 |
| 5338378 | Dental gold alloy with age-hardenability at intraoral temperature | Michio Ohta, Takanobu Shiraishi, Masaharu Nakagawa | 1994-08-16 |