Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5540451 | Composite sealing material | Kazuo Ohta, Shoji Seike, Toshiichi Ikami, Tatsuya Hishiki | 1996-07-30 |
| 5518255 | Carbon-based composite ceramic sealing material | Shoji Seike, Toshiichi Ikami, Kazuo Ohta | 1996-05-21 |