Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5429881 | Surface treated aluminum or aluminum alloy material | Masamichi Aono, Toshihiro Chikada, Souichi Hayashi, Hiroshi Sato, Kouki Ikeda +7 more | 1995-07-04 |
| 5244512 | Method for treating metal surface with zinc phosphate | Isao Kawasaki, Minoru Ishida, Haruo Kojima | 1993-09-14 |
| 4741863 | Alkaline degreasing solution comprising amine oxides | Tsukasa Yamamoto, Yoshikazu Shibata, Hiroshi Okita, Koichi Ando, Yasuhiro Okano +1 more | 1988-05-03 |
| 4517030 | Process for activating steel surface prior to phosphating treatment aqueous activating solution therefor | Tsukasa Yamamoto, Hiroshi Okita, Toshi Miyawaki, Yoshiji Shirogane, Kazuhiko Mori | 1985-05-14 |