Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7666822 | Lubricating oil for ship propulsor bearings | Tsuyoshi Okamoto | 2010-02-23 |
| 4588025 | Aluminum heat exchanger provided with fins having hydrophilic coating | Takeshi Yamada, Kunio Sakaue, Eizo Isoyama, Masaaki Mizoguchi, Katsumi Tanaka | 1986-05-13 |