Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7353190 | Gift-valuable article exchange assisting device and method, and computer product | Kuniaki Yamada, Mikio Fukuma | 2008-04-01 |
| 5715083 | Screen for liquid crystal projector | — | 1998-02-03 |
| 5285130 | Electron gun with bi-potential focusing lens and electrostatic deflection plates | — | 1994-02-08 |
| 4713588 | Image pickup tube | Hitomi Suzuki, Masanori Maruyama, Masakazu Fukushima, Mitsuhiro Kurashige | 1987-12-15 |
| 4560899 | Electron beam focusing lens | Masanori Maruyama, Masakazu Fukushima | 1985-12-24 |