Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5323951 | Method of joining steel sheet bars in hot rolling and a continuous hot rolling method | Toshisada Takechi, Masanori Ebihara, Fujio Aoki, Kunio Yoshida, Naoki Hatano +7 more | 1994-06-28 |
| 4817384 | Double air-fuel ratio sensor system having improved exhaust emission characteristics | Atsuo Okumura, Masato Ujino | 1989-04-04 |