Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5318640 | Surface treatment method and composition for zinc coated steel sheet | Hitoshii Ishii, Kazuhiko Mori, Shizuo Shima | 1994-06-07 |
| 5254238 | Surface treating solution and surface treating process for zinc-plated steel plates | Hitoshi Ishii | 1993-10-19 |
| 5091223 | Process for forming a blackened layer on a zinciferous surface by contacting the surface with an aqueous solution containing nickel and cobalt ions | Kazuhiko Mori, Hitoshi Ishii | 1992-02-25 |
| 5000799 | Zinc-nickel phosphate conversion coating composition and process | — | 1991-03-19 |
| 4985087 | Treating zinciferous metal surfaces to blacken them | Kazuhiko Mori, Hitoshi Ishii | 1991-01-15 |
| 4904544 | Zn-based composite-plated metallic material and plating method | Kazuhiko Mori | 1990-02-27 |
| 4728401 | Electrolytic post-treatment of phosphated surface | Atsunori Yoshida, Yoshikazu Saito | 1988-03-01 |
| 4517030 | Process for activating steel surface prior to phosphating treatment aqueous activating solution therefor | Tsukasa Yamamoto, Asao Mochizuki, Hiroshi Okita, Yoshiji Shirogane, Kazuhiko Mori | 1985-05-14 |