Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10038296 | Light amplification device and laser processing device | Hiroshi Fukui, Tadamasa Yokoi, Tatsuo Ogaki, Tatsunori SAKAMOTO, Yuichi Ishizu | 2018-07-31 |
| 6109388 | Sound absorbing mechanism using a porous material | Kouji Tsukamoto, Katsuhisa Ootsuta, Masayuki Kurashina, Toshihisa Imai | 2000-08-29 |
| 5905234 | Sound absorbing mechanism using a porous material | Kouji Tsukamoto, Katsuhisa Ootsuta, Masayuki Kurashina, Toshihisa Imai | 1999-05-18 |