Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5829468 | Valve device using pipes and method of manufacturing it | Masatoshi Enoki, Katsuaki Nakamura, Tatsuo Matsukuma, Tsuguya Okubo, Akira Yubisui +4 more | 1998-11-03 |
| 5143295 | Bubbly water outlet device | Kenji Okayama, Yoshitaka Oba, Masahiko Imazono, Masatoshi Enoki, Masao Shimizu +6 more | 1992-09-01 |