Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12305934 | Heat exchanger and method for manufacturing heat exchanger | Takema NAKAZAWA, Takahisa Sueoka | 2025-05-20 |
| 11559861 | Method for using sheet shaped member | Takema NAKAZAWA | 2023-01-24 |
| 7185504 | Air conditioner | Sumio Shiochi, Ryuuji Akiyama, Kazuhisa Shigemori | 2007-03-06 |
| 6863153 | Loudspeaker diaphragm | Junichi Hayakawa | 2005-03-08 |