Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5006420 | Electroplated steel sheet having a plurality of coatings, excellent in workability, corrosion resistance and water-resistant paint adhesivity | Tsutomu Watanabe, Masaru Sagiyama, Masaya Morita | 1991-04-09 |
| 4929323 | Apparatus for removing electroplating metal deposited onto surface of conductor roll | Tsutomu Watanabe, Masari Sagiyama, Toshiyuki Tsujihara, Shigehiro Takushima | 1990-05-29 |
| 4929324 | Apparatus for removing electroplating metal deposited onto surface of conductor roll | Tsutomu Watanabe, Masaru Sagiyama, Toshiyuki Tsujihara, Shigehiro Takushima | 1990-05-29 |