Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5476718 | Compound water-sealing sealant | Shuitsu Takahashi, Kouzi Hara, Hiroshi Waki, Shinji Kobe, Tadayuki Sakurada +3 more | 1995-12-19 |
| 5444128 | Water-sealing sheet | Shuitsu Takahashi, Kouzi Hara, Hiroshi Waki, Shinji Kobe, Tadayuki Sakurada +3 more | 1995-08-22 |
| 5193960 | Washer with elastic water-swellable rubber | Takuo Fukushima, Hiroshi Inoue, Tokio Ueno | 1993-03-16 |