Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857304 | Cosmetic composition | Masaaki Ishiwatari, Yuji Tsutsumi, Yoshiyuki Ogusu | 1989-08-15 |
| 4828017 | Cooling device for off-road vehicle | Seiji Watanabe, Akio Handa, Eiji Hosoya, Makoto Ishiwatari, Takerou Shibukawa | 1989-05-09 |