Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5964113 | Method for manufacturing a resin-coated steel sheet for drawn-and-ironed cans | Ryoichi Yoshihara, Hiroji Niimi, Takashi Hiraoka | 1999-10-12 |
| 5714273 | Resin-coated steel sheet for drawn-and-ironed cans and drawn-and-ironed cans manufactured therefrom | Ryoichi Yoshihara, Hiroji Niimi, Takashi Hiraoka | 1998-02-03 |
| 5344550 | Process for producing surface-treated steel sheet superior in weldability and paint-adhesion | Yoshihiro Kaneda, Ryoichi Yoshihara | 1994-09-06 |
| 5248405 | Process for producing surface-treated steel sheet superior in weldability and paint-adhesion | Yoshihiro Kaneda, Ryoichi Yoshihara | 1993-09-28 |
| 4999258 | Thinly tin coated steel sheets having excellent rust resistance and weldability | Kazuya Ezure | 1991-03-12 |
| 4181580 | Process for electro-tin plating | Minoru Kitayama, Takao Saito | 1980-01-01 |