Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12378673 | Surface-treated steel sheet for organic resin coating and method of producing same, and organic resin coated steel sheet and method of producing same | Rie Kaneko, Reona Endo, Fuyuko Ikeda | 2025-08-05 |
| 11795526 | Surface-treated steel sheet | Masahiro Yoshida, Takeshi Matsuda, Yusuke Fushiwaki, Akira Matsuzaki, Daisuke Mizuno | 2023-10-24 |
| 11618938 | Steel sheet having a hot-dip Zn—Al—Mg-based coating film excellent in terms of surface appearance and method of manufacturing the same | Hiroki Harada, Hiroshi Kajiyama | 2023-04-04 |
| 11174556 | Surface-treatment solution for zinc or zinc alloy coated steel sheet, method of producing zinc or zinc alloy coated steel sheet with surface-coating layer, and zinc or zinc alloy coated steel sheet with surface-coating layer | Reona Endo, Hiroshi Kajiyama, Takashi Kawano | 2021-11-16 |
| 8304092 | Surface-treated galvanized steel sheet with superior flat-portion corrosion resistance, blackening resistance, and appearance and corrosion resistance after press forming and aqueous surface-treatment liquid for galvanized steel sheet | Rie Umebayashi, Etsuo Hamada, Akira Matsuzaki, Satoru Ando | 2012-11-06 |
| 8012599 | Surface-treated steel sheet with excellent corrosion resistance and method for manufacturing same | Tatsuya Miyoshi, Kenichi Sasaki, Naoto Yoshimi, Akira Matsuzaki, Takao Ooshima +3 more | 2011-09-06 |
| 7875363 | Surface-treated steel sheet | Etsuo Hamada, Syuji Nomura | 2011-01-25 |
| 7842400 | Surface-treated steel sheet and method for manufacturing the same | Takafumi Yamaji, Akira Matsuzaki, Keiji Yoshida, Masaaki Yamashita, Yuichi Fukushima +1 more | 2010-11-30 |
| 7517591 | Highly corrosion-resistant surface-treated steel sheet and method for producing same | Tatsuya Miyoshi, Kenichi Sasaki, Naoto Yoshimi, Akira Matsuzaki, Takao Ooshima +3 more | 2009-04-14 |
| 7348068 | Surface-treated steel sheet excellent in corrosion resistance, conductivity, and coating appearance | Takeshi Matsuda, Akira Matsuzaki | 2008-03-25 |