Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11873462 | Lubricating oil composition | Akio HAYAKAWA, Shuhei Yamamoto, Masahiro Yamashita, Yusuke Saito | 2024-01-16 |
| 11655428 | Lubricating oil compositions and lubricating oil viscosity modifiers | Akio HAYAKAWA, Noriko Kai, Yuji Tokunaga | 2023-05-23 |
| 6332558 | Chip feeder and chip feeding system | Mamoru Tsuda | 2001-12-25 |
| 5881914 | Adhesive dispenser | Mamoru Tsuda | 1999-03-16 |