Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6659136 | Flexible hose | Hiroyuki Masui, Toshihiro Nakanishi, Isao Kurimoto, Masahiko Ogake | 2003-12-09 |
| 6398270 | Corrugated pipe joint | Hiroyuki Amatsutsu, Yasuhiro Kikumori | 2002-06-04 |
| 6347646 | Flexible hose | Hiroyuki Amatsutsu | 2002-02-19 |
| 6227578 | Corrugated resin elbow | Isao Kurimoto | 2001-05-08 |
| 6179009 | Heat-insulating and noise reducing duct | — | 2001-01-30 |
| 6076992 | Underdrain pipe | Yasuhiro Kikumori | 2000-06-20 |
| 5981876 | PC cable protective sheath for prestressed concrete | — | 1999-11-09 |
| 5806567 | Heat insulated hose | Hiroyuki Masui, Tomio Inada | 1998-09-15 |
| 5795634 | Heat insulating noise reducing duct | — | 1998-08-18 |
| 5704401 | Washing machine hose | Hiroyuki Masui, Toshihiro Nakanishi | 1998-01-06 |