Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12281470 | Sound insulation sheet member and sound insulation structure using same | Shogo KOGA | 2025-04-22 |
| 12180701 | Sound insulation sheet member and sound insulation structure using same | Shogo KOGA | 2024-12-31 |
| 11821201 | Sound insulation sheet member and sound insulation structure using same | Shogo KOGA | 2023-11-21 |
| 11168474 | Sound insulation sheet member and sound insulation structure using same | Shogo KOGA | 2021-11-09 |
| 10580395 | Sound absorbing body | Hidetoshi Matsumoto, Takahisa Kato | 2020-03-03 |
| 8277755 | Apparatus for discharging packing material from sample column | Keisuke Morishita, Takayuki Okafuji | 2012-10-02 |
| 7968053 | Chlorine analyzing apparatus | Norio Hayashi, Takayuki Okafuji, Tamaki Tomoyose | 2011-06-28 |