Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5567493 | Die for extrusion of multi-hole tube and multi-hole tube made with the die | Toshihiro Imai, Tokuo Shirai, Ken Yamamoto | 1996-10-22 |
| 4894184 | Low-temperature burnt conductive paste and method of manufacturing printed circuit board | Kouichi Shintomi, Ryu Maeda, Kaisuke Shiroyama | 1990-01-16 |
| 4842959 | Aluminum enamel board | Ryu Maeda, Hiroshi Yatabe | 1989-06-27 |
| 4602966 | Method for improving the quality of cast ingot in continuous casting | Kaisuke Shiroyama, Sadao Inoue, Kenichiro Muto, Katsuhiko Murota | 1986-07-29 |