Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5108659 | Sintered body of conductive sialon and heating element made thereof | Seiji Okazaki, Kenji Maruta | 1992-04-28 |
| 4810853 | Glow plug for diesel engines | Kenji Maruta, Hiroshi Suwabe, Mitusuke Masaka, Koji Hatanaka | 1989-03-07 |