Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5851250 | Filter element for air cleaner | Hiromichi Sugie, Yasunari Arai, Yukihisa Horikoh, Kouji Kume, Hirotsugu Kojima | 1998-12-22 |
| 5755844 | Resin-made air cleaner | Yasunari Arai, Yoshiyuki Murao, Yasuhiro Okazaki, Yukihisa Horikou, Kouji Kume | 1998-05-26 |