Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7775319 | Diaphragm for speaker and manufacturing method therefor | Yasutaka Nakamura | 2010-08-17 |
| 6538359 | Surface acoustic wave device | Tatsuya Hiraku, Akira Kaneko, Yukitoshi Suzuki, Masuhiro Okada | 2003-03-25 |
| 5820975 | Sound absorbing material and method of production therefor | Katsutoshi Oda, Toshiyuki Suzuki, Akira Kaneko, Kenji Ito, Yasutaka Nakamura | 1998-10-13 |
| 5054889 | Liquid crystal display having an alignment layer in the form of a porous alumina layer | Atsushi Ohtaka, Kunio Hiyama, Takanori Kawamura | 1991-10-08 |