Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12071704 | Apparatus for manufacturing a single crystal by the Czochralski method comprising a cooling cylinder with an auxiliary cooling cylinder fitted inside the cooling cylinder | Atsushi Okai | 2024-08-27 |
| 11821104 | Apparatus for manufacturing single crystal | Takumi Kobayashi, Atsushi Okai, Susumu Sonokawa, Atsushi Iwasaki | 2023-11-21 |
| D467607 | Electronic piano | Kenji Ozawa | 2002-12-24 |
| 6333455 | Electronic score tracking musical instrument | Nobuhiro Yamada, Kazuhiko Matsuoka | 2001-12-25 |