Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6644629 | Overwinding prevention device for winch | Shinobu Higashi, Kazuhisa Ishida, Toshimi Sakai, Masami Ochiai, Teruo Igarashi +2 more | 2003-11-11 |
| 6339929 | Swivel control apparatus | Tsutomu Udagawa, Teruo Igarashi, Masami Ochiai, Toshimi Sakai, Kazuhisa Ishida | 2002-01-22 |