Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5308654 | Method for lubricating steel tubing prior to cold drawing | Koji Kaburagi, Koji HETSUGI | 1994-05-03 |
| 5221490 | Rust-preventive lubricant composition for zinc-plated steel material | Yasuhisa Tajiri, Takafumi Yamaji, Yasuo Okumura, Yasuo Tanizawa | 1993-06-22 |
| 5116521 | Aqueous lubrication treatment liquid and method of cold plastic working metallic materials | Hiroyuki Fujii, Tokuo Shirai, Takanori Mizutani, Koji HETSUGI, Yasuo Tanizawa +1 more | 1992-05-26 |
| 4517029 | Process for the cold forming of iron and steel | Sakae Sonoda, Seishi Kano | 1985-05-14 |