Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9821355 | Method of manufacturing rectangular tube having stepped portion | Hirokazu Sasaki, Naofumi Nakamura, Jun Kurobe | 2017-11-21 |
| 9757789 | Method of manufacturing rectangular tube having stepped portion | Hirokazu Sasaki, Naofumi Nakamura, Jun Kurobe | 2017-09-12 |
| 5277781 | Zirconia oxygen sensor | Shigeo Matsubara, Toshiro Yamada, Yusuke Hirose, Iwao Katayama, Yukimi Miwa | 1994-01-11 |