Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D722592 | Speaker box | — | 2015-02-17 |
| 7986805 | Acoustic diaphragm | — | 2011-07-26 |
| 7483545 | Acoustic diaphragm | — | 2009-01-27 |
| 4974559 | Combustion system and combustion apparatus for internal combustion engine | — | 1990-12-04 |
| 4347903 | Electronic reading balance | Shozo Yano, Toshiyuki Miyake, Yasuhiro Fujinaga, Akira Koomoto, Toshio Kawara +2 more | 1982-09-07 |
| D262620 | Video disc player | Kazuhiro Kawano, Kenji Nambu, Tadashi Saito, Masakuni Ishibashi | 1982-01-12 |