Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6204460 | Sealed contact device, a method of producing a sealed contact device, and a sealing method | Tsukasa Hojo, Ryuji Otani, Shusuke Matsumura | 2001-03-20 |
| 6085964 | Method of sealing a hole | Tsukasa Hojo, Ryuji Otani, Shusuke Matsumura | 2000-07-11 |