Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12278024 | Method of making an electrical steel sheet provided with insulating coating | Kazumichi Sashi, Nobuko Nakagawa, Naoki Muramatsu, Nobue Fujibayashi | 2025-04-15 |
| 12252792 | Electrical steel sheet having insulating coating | Naoki Muramatsu, Nobuko Nakagawa | 2025-03-18 |
| 11186076 | Method of manufacturing electrical steel sheet with adhesive insulating coating and method of manufacturing stacked electrical steel sheet | Nobuko Nakagawa, Naoki Muramatsu | 2021-11-30 |
| 11177052 | Method of making an electrical steel sheet provided with insulating coating | Kazumichi Sashi, Nobuko Nakagawa, Naoki Muramatsu, Nobue Fujibayashi | 2021-11-16 |
| 10526672 | Electrical steel sheet with insulating coating | Naoki Muramatsu, Nobuko Nakagawa, Kazumichi Sashi | 2020-01-07 |
| 10403417 | Electrical steel sheet provided with insulating coating | Kazumichi Sashi, Nobuko Nakagawa, Naoki Muramatsu, Nobue Fujibayashi | 2019-09-03 |
| 9534136 | Magnetic steel sheet with semi-organic insulation coating | Kazumichi Sashi, Hiroyuki Ogata, Nobuko Nakagawa, Nobue Fujibayashi, Tomofumi Shigekuni +1 more | 2017-01-03 |
| 8715837 | Black-coated steel sheet, worked material, and panel for flat-panel television | Hiroyuki Ogata | 2014-05-06 |
| 7588836 | Phosphate-treated zinc-coated steel sheet | Hiroki Nakamaru, Kazumi Yamashita, Hideo Sasaoka, Chiaki Kato | 2009-09-15 |
| 7186467 | Black zinc-plated steel sheet | Hiroki Nakamaru, Yuuzo Ootuka, Takeshi Sakuma, Hiroyuki Ogata, Shigeru Umino | 2007-03-06 |
| 6878462 | Surface treated zinc-based metal plated steel sheet | Shigeru Umino, Hiroyuki Ogata | 2005-04-12 |
| 6514357 | Composition for metal surface treatment and surface treated metallic material | Hiroyuki Ogata, Shigeru Umino | 2003-02-04 |