Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6479152 | Lubricative stainless steel sheets and pipes and method of producing lubricative stainless steel pipes | Itsuro Hiroshige, Isao Anai, Katsuhiko Kato, Toshio Tanoue | 2002-11-12 |
| 6129992 | High-strength cold rolled steel sheet and high-strength plated steel sheet possessing improved geomagnetic shielding properties and process for producing the same | Yasuharu Sakuma, Satoru Tanaka, Kazuo Koyama, Takeshi Kubota, Atsushi Itami +3 more | 2000-10-10 |
| 5023146 | Black surface-treated steel sheet | Katsushi Saito, Toshimichi Murata, Yoshio Shindo | 1991-06-11 |
| 4968391 | Process for the preparation of a black surface-treated steel sheet | Katsushi Saito, Toshimichi Murata, Yoshio Shindo | 1990-11-06 |
| 4705726 | Anticorrosive weldable coated steel | Yoshio Shindou, Joji Oka, Taketoshi Taira, Fumio Yamazaki | 1987-11-10 |
| 4522892 | Method for producing a steel strip having an excellent phosphate-coating property | Yoshio Shindow, Masaya Tsutsumi, Wataru Hotta | 1985-06-11 |