Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4792345 | Control circuit for an air cleaner | Shuji Abe, Toshiichiro Tanaka, Nobuhiro Hayashi, Seiichi Ueno | 1988-12-20 |
| 4790862 | Air cleaning machine | Noboru Naruo, Syuzo Tokumitsu, Masao Fukunaga | 1988-12-13 |