Issued Patents All Time
Showing 51–67 of 67 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5589279 | Weldable black steel sheet | Naoto Yoshimi, Toyofumi Watanabe | 1996-12-31 |
| 5556715 | Weldable colored steel sheet | Naoto Yoshimi, Toyofumi Watanabe | 1996-09-17 |
| 5496652 | Zinc-plated steel plate having resin coating film | Kenichi Sasaki, Toshiyuki Okuma, Toyofumi Watanabe | 1996-03-05 |
| 5429880 | Organic composite coated steel sheet and a process for manufacturing the same | Takahiro Kubota, Toyofumi Watanabe, Yoshio Kikuta, Kimio Kobori, Hideaki Ogata | 1995-07-04 |
| 5393605 | Zinciferous plated steel sheet excellent in press-formability and corrosion resistance | Tatsuya Miyoshi, Toshiyuki Okuma, Toyofumi Watanabe, Norio Kosaka | 1995-02-28 |
| 5391290 | Method for continuously tin-electroplating metal strip | Mikiyuki Ichiba, Hiroki Iwasa, Toyofumi Watanabe, Katsumi Kojima | 1995-02-21 |
| 5387473 | Weldable black steel sheet with low-gloss appearance | Naoto Yoshimi, Toyofumi Watanabe | 1995-02-07 |
| 5110689 | Multi-layered steel sheets | Tsutomu Watanabe, Takahiro Kubota, Yoshiaki Miyosawa, Tadashi Nishimoto | 1992-05-05 |
| 4971636 | Method of producing highly corrosion-resistant surface-treated steel plates | Tsutomu Watanabe, Takahiro Kuboto | 1990-11-20 |
| 4970126 | Highly corrosion-resistant, multi-layer coated steel sheets | Takeshi Adaniya, Takahiro Kubota, Norio Nikaido, Yoshiaki Miyosawa, Tadashi Nishimoto +1 more | 1990-11-13 |
| 4889775 | Highly corrosion-resistant surface-treated steel plate | Takeshi Adaniya, Takahiro Kubota, Akira Enatsu, Norio Nikaido, Yoshiaki Miyosawa +1 more | 1989-12-26 |
| 4775600 | Highly corrosion-resistant surface-treated steel plate | Takeshi Adaniya, Akira Enatsu, Takahiro Kubota, Norio Nikaido, Yoshiaki Miyosawa +2 more | 1988-10-04 |
| 4659394 | Process for preparation of highly anticorrosive surface-treated steel plate | Tomihiro Hara, Takeshi Adaniya, Akira Enatsu | 1987-04-21 |
| 4450209 | Multi-layer surface-treated steel plate having zinc-containing layer | Tomihiro Hara, Masahiro Ogawa | 1984-05-22 |
| 4411964 | Composite coating steel sheets having good corrosion resistance paintability and corrosion resistance after paint coating | Tomihiro Hara, Masahiro Ogawa, Masakazu Tsukada | 1983-10-25 |
| 4407899 | Surface treated steel sheets for paint coating | Tomihiro Hara, Masahiro Ogawa, Yasuhisa Tajiri | 1983-10-04 |
| 4279177 | Variable speed transmission | — | 1981-07-21 |