Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5634645 | Sheet-like gasket with overlapped peripheral portions | Masanori Seki, Akira Hashimoto, Toshiyasu Tanimura | 1997-06-03 |
| 5628520 | Sealing material made of expanded graphite having opened thin-leaf surface structure | Masaru Fujiwara, Terumasa Yamamoto | 1997-05-13 |
| 5605341 | Knitting yarn for gland packing and gland packing made from the knitting yarn | — | 1997-02-25 |