Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8159137 | Magnetron | Nagisa Kuwahara, Takeshi Ishii | 2012-04-17 |
| 7906912 | Magnetron | Takeshi Ishii, Nagisa Kuwahara | 2011-03-15 |
| 7696697 | Magnetron | Nagisa Kuwahara, Takeshi Ishii | 2010-04-13 |
| 7548026 | Magnetron | Nagisa Kuwahara, Takeshi Ishii | 2009-06-16 |
| 7474042 | Magnetron with graphite nano-fibers on cathode | Toshiyuki Tsukada | 2009-01-06 |
| 7023137 | Magnetron | Takeshi Ishii, Takanori Handa, Nagisa Kuwahara | 2006-04-04 |
| 6670762 | Magnetron apparatus | Nagisa Kuwahara | 2003-12-30 |
| 5180946 | Magnetron having coaxial choke means extending into the output side insulating tube space | Yoshitaka Shibata | 1993-01-19 |
| 5049782 | Magnetron with harmonic suppression means | Kazuki Miki | 1991-09-17 |
| 4985802 | High voltage through type capacitor and manufacturing method therefor | Katsunori Ueno, Masafumi Kuroda | 1991-01-15 |
| 4720659 | Magnetron | Tetsuji Hashiguchi | 1988-01-19 |
| 4644225 | Magnetron | Tetsuji Hashiguchi | 1987-02-17 |