Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4447293 | Scraping blades for use in thin film dryers | Masaru Watanabe, Satoru Matsumura, Hiromitsu Irie, Norihisa Saito | 1984-05-08 |
| 4352462 | Spray nozzle | Masaru Watanabe, Shinichi Yamaguchi | 1982-10-05 |