Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6021812 | Ball plug valve | Kunio Iwamoto, Tadashi Ogawa, Hitoshi Ishiyama | 2000-02-08 |
| 4921751 | Conductive fabric and a method for the manufacture of the conductive fabric, and a conductive sheet and film made using the conductive fabric | Yoshihiro Matsuo, Minoru Kawamura | 1990-05-01 |