Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6306196 | Sintered Ti-system material product derived from injection molding of powder material and producing method thereof | Kenji Date, Yutaka Kubo | 2001-10-23 |
| 5040880 | Quartz optical filter | Junji Tanaka, Eiji Tanaka | 1991-08-20 |
| 4582756 | Organic microballoon | Kikuo Niinuma | 1986-04-15 |