Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9648418 | Active noise cancellation apparatus | Hiroshi Iwamoto, Kouichi Hasegawa, Naoya OUE | 2017-05-09 |
| 9409719 | Conveying apparatus | Shinya SUBE, Katsuhiko Nakano, Atsushi Muramatsu, Masaru Murayama | 2016-08-09 |
| 9288583 | Speaker | Katsuhiko Nakano | 2016-03-15 |
| 8958581 | Polymer speaker | Takamasa Ito, Hitoshi Yoshikawa, Katsuhiko Nakano | 2015-02-17 |
| 5768668 | Toner supply roll having openings in skin layer of porous cylindrical polyurethane sponge structure, and method of producing the same | Keita Shiraki, Saburou Hayashi, Akitoshi Nozawa | 1998-06-16 |