Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7177591 | Frequency converter and radio communications system employing the same | Koyo Kegasa, Chitaka Manabe, Takuya Kusaka, Koji Inoue | 2007-02-13 |
| 6724804 | Frequency converter and radio communications system employing the same | Koyo Kegasa, Chitaka Manabe, Takuya Kusaka, Koji Inoue | 2004-04-20 |
| 5505898 | Plastic pipe and manufacturing method thereof | Takatomo Harada, Hideki Kasa, Takashi Tago | 1996-04-09 |
| 5462314 | Electro-fusion fitting having a solid embedded heater with perpendicular projections | Hideki Kasa, Takatomo Harada | 1995-10-31 |