Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12252567 | Acrylate-based copolymer, method for producing said copolymer, friction reducer using said copolymer, and lubricating composition containing said friction reducer | Kenji Yamamoto, Shuhei Igarashi, Kazuki Marumo | 2025-03-18 |
| 10214667 | Adhesive tape for preventing adhesion of aquatic organisms | Satoru Suzuki, Tomonari Naito, Ryoko Asai, Naoki Kurata | 2019-02-26 |
| 6588765 | Monolayer metal gaskets | Kiyoshi Sugimoto, Kazuya Yoshijima | 2003-07-08 |
| 6575473 | Metallic gasket | Kiyoshi Sugimoto, Kazuya Yoshijima | 2003-06-10 |
| 6336639 | Metal gaskets | Kenji Ishida, Yutaka Furuta, Tomoyoshi Ogaeri, Naoki II | 2002-01-08 |
| 6135459 | Metal gasket | Kenji Ishida, Kunitoshi Inoue | 2000-10-24 |