Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11511365 | Welding device and welding method | Tokuji Maruyama, Minoru Miyata, Kei Yamazaki, Reiichi SUZUKI | 2022-11-29 |
| 11318567 | Flux-cored wire | Eri Yamamoto, Kei Yamazaki, Reiichi SUZUKI | 2022-05-03 |
| 10619407 | Sliding fire door | Nobuo Ogawa, Yoshihiro Hosaka, Takafumi Yamazaki | 2020-04-14 |
| 9932767 | Fire door | Yukihisa Matsuo, Kouji Yasuda, Yoshihiro Hosaka, Nobuo Ogawa | 2018-04-03 |