Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5866059 | Polycrystalline BCN substance and method of producing same | Shuzo Fujiwara, Yozo Kakudate, Shu Usuba, Hiroyuki Yokoi, Katsutoshi Aoki +4 more | 1999-02-02 |
| 4864004 | Solid-state polymerization of acetylene | Katsutoshi Akoi, Shuzo Fujiwara, Katsumi Tanaka, Yozo Kakudate, Shu Usuba | 1989-09-05 |