Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6787044 | High frequency wave heated plasma mass filter | Robert L. Miller, John Rogers Gilleland, Tihiro Ohkawa | 2004-09-07 |
| 6398920 | Partially ionized plasma mass filter | Tihiro Ohkawa, Robert L. Miller, Sergei Putvinski | 2002-06-04 |
| 6386374 | Multi-mass filter with electric field variations | Robert L. Miller, Tihiro Ohkawa | 2002-05-14 |
| 6356025 | Shielded rf antenna | Robert L. Miller | 2002-03-12 |
| 6304036 | System and method for initiating plasma production | Robert L. Miller | 2001-10-16 |
| 6293406 | Multi-mass filter | Robert L. Miller, Tihiro Ohkawa | 2001-09-25 |
| 6251282 | Plasma filter with helical magnetic field | Sergei Putvinski, Tihiro Ohkawa | 2001-06-26 |
| 4564807 | Method of judging carrier lifetime in semiconductor devices | Hiroyuki Ikezi | 1986-01-14 |