Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10549944 | Paper-made reel | Yasuo Ishikawa | 2020-02-04 |
| 6874759 | Plug valve | Hiroaki Aoshima | 2005-04-05 |
| 5762380 | Pipe joint with flanged housings | Shoichi Hiwatashi, Toshio Funato | 1998-06-09 |
| 4890865 | Tube joint for use with multi-walled tube assembly | Masayuki Hosono, Jun-ichi Hiramoto | 1990-01-02 |