Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10980332 | Cosmetic applicator | Hitoshi Nakamura, Takayuki Hayakawa, Jun Nakada | 2021-04-20 |
| 10569596 | Writing tool refill and writing tool using same | Takayuki Ikai, Naohiro Katou, Takanori Shindou | 2020-02-25 |
| 5984672 | Ceramic fiber block for lining high temperature furnace | — | 1999-11-16 |
| 4298767 | Support for a heating element in an electric furnace | — | 1981-11-03 |