Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4693614 | Apparatus for detecting slag outflow | Sumio Kobayashi | 1987-09-15 |
| 4580449 | Method and apparatus for determining the surface level of molten metal | Sumio Kobayashi | 1986-04-08 |
| 4568200 | Method of and apparatus for measuring surface temperature of metallic body | Sumio Kobayashi, Toshiyuki Sugimura, Shunji Mihayara | 1986-02-04 |
| 4210023 | Method and apparatus for measuring slag foaming using microwave lever meter | Yoshiyasu Sakamoto, Sumio Kobayashi | 1980-07-01 |