Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11982355 | Yarn and gland packing | Masaru Fujiwara, Misato Izuka, Naoyuki Sawamoto | 2024-05-14 |
| 10533268 | Sealing material composition and gland packing containing the sealing material composition | Kazuyoshi Sato, Kohei Arakawa, Masaru Fujiwara, Hiroyoshi Nakamitsu | 2020-01-14 |
| 10316442 | Method for producing yarn | Hiroyoshi Nakamitsu | 2019-06-11 |
| 10100444 | Yarn and gland packing | Hiroyoshi Nakamitsu | 2018-10-16 |