Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11136659 | Surface-treated steel material | Toshiaki Sakamoto, Yoichi Tozaki, Tomonari Hamamura, Hideaki Nasu | 2021-10-05 |
| 10450468 | Surface treatment composition for coated steel sheet, surface treated plated steel sheet and method of production of same, and coated plated steel sheet and method of production of same | Shigeki Yamamoto, Tomohiro Iko, Eisuke Kudo, Hiroyuki Oyokawa | 2019-10-22 |
| 9353270 | Surface-treated metal and method for producing same | Takao Kanai, Yuji Kubo, Yoshio Kimata, Hiroshi Kanai, Tomonari Hamamura | 2016-05-31 |
| 7682706 | Precoated metal sheet with little affect on environment | Hiromasa Shoji, Koki Tanaka, Yuji Kubo, Takeshi Hamada | 2010-03-23 |
| 7608337 | Chemical conversion-treated metal plate | Koki Tanaka, Masao Kimura, Hiromasa Shoji | 2009-10-27 |
| 6475300 | Non-chromate metallic surface-treating agent, method for surface treatment, and treated steel material | Toshiaki Shimakura, Motohiro Sasaki, Katsuyoshi Yamasoe, Hiroshi Kanai, Kouhei Ueda | 2002-11-05 |
| 6465114 | -Zn coated steel material, ZN coated steel sheet and painted steel sheet excellent in corrosion resistance, and method of producing the same | Kazuhiko Honda, Kazumi Nishimura, Yasuhide Morimoto, Satoru Tanaka, Yoshihiro Suemune +7 more | 2002-10-15 |