Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11280004 | Water-based treatment solution, chemical conversion treatment method, and chemical-conversion-treated steel sheet | Shin Ueno | 2022-03-22 |
| 10619069 | Chemical conversion-treated steel sheet and method for producing same, and chemical conversion treatment solution | Masaya Yamamoto | 2020-04-14 |
| 10202676 | Method for producing hot-dip Zn alloy-plated steel sheet | Atsuo Shimizu, Masaya Yamamoto, Hirofumi Taketsu | 2019-02-12 |
| 10167542 | Method for producing hot-dip Zn alloy-plated steel sheet | Atsuo Shimizu, Masaya Yamamoto, Hirofumi Taketsu | 2019-01-01 |
| 10125414 | Method of producing hot-dip Zn alloy-plated steel sheet | Atsuo Shimizu, Masaya Yamamoto, Hirofumi Taketsu | 2018-11-13 |
| 9890461 | Chemical conversion coated plated steel sheet and method for producing same | Koichiro Ueda, Masaya Yamamoto, Hirofumi Taketsu | 2018-02-13 |
| 9260786 | Chemical conversion coated plated steel sheet and method for producing same | Koichiro Ueda, Masaya Yamamoto, Hirofumi Taketsu | 2016-02-16 |
| 8895153 | Chemical conversion coated plated steel sheet and method for producing same | Koichiro Ueda, Masaya Yamamoto, Hirofumi Taketsu | 2014-11-25 |
| 6544666 | Chemically processed steel sheet improved in corrosion resistance | Kouichiro Ueda, Shigeyasu MORIKAWA, Tadashi Nakano, Yasumi Ariyoshi, Keiji Izumi +1 more | 2003-04-08 |
| 6440598 | Separator for low temperature type fuel cell and method of production thereof | Yasushi Fukui, Minoru Saito | 2002-08-27 |
| 5747111 | Steel sheet coated with Zn-Mg binary coating layer excellent in corrosion resistance and manufacturing method thereof | Yasushi Fukui, Hiroshi Tanaka, Tadaaki MIONO, Kazushi Sakamoto, Yasumi Ariyoshi +1 more | 1998-05-05 |
| 5648177 | Steel sheet coated witn Zn-Mg binary coating layer excellent in corrosion resistance and manufacturing method thereof | Yasushi Fukui, Hiroshi Tanaka, Tadaaki MIONO, Kazushi Sakamoto, Yasumi Ariyoshi +1 more | 1997-07-15 |
| 5631090 | Iron-based material having excellent oxidation resistance at elevated temperatures and process for the production thereof | Yasushi Fukui, Atsushi Ando, Yoshikazu Morita, Minoru Saito, Hideo Miyake +1 more | 1997-05-20 |
| 5612090 | Iron-based material having excellent oxidation resistance at elevated temperatures and process for the production thereof | Yasushi Fukui, Atsushi Ando, Yoshikazu Morita, Minoru Saito, Hideo Miyake +1 more | 1997-03-18 |