Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5672874 | Infrared oil-concentration meter | Hiroshi Fujii, Ryosuke Fukushima, Tatsuhide Tsutsui, Masahiko Ishida | 1997-09-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5672874 | Infrared oil-concentration meter | Hiroshi Fujii, Ryosuke Fukushima, Tatsuhide Tsutsui, Masahiko Ishida | 1997-09-30 |