Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12334309 | Filter device and plasma processing apparatus | Naohiko Okunishi | 2025-06-17 |
| 11908664 | Plasma processing apparatus | Naohiko Okunishi, Tomoyuki Takahashi | 2024-02-20 |
| 11501958 | Plasma processing apparatus | Naohiko Okunishi, Tomoyuki Takahashi | 2022-11-15 |
| 11495443 | Filter device and plasma processing apparatus | Naohiko Okunishi | 2022-11-08 |
| 11328908 | Adjustment method for filter unit and plasma processing apparatus | Ryuichi Yui | 2022-05-10 |
| 10897808 | Filter device and plasma processing apparatus | Naohiko Okunishi | 2021-01-19 |
| 10651813 | Method for designing filter | Naohiko Okunishi, Eiichiro Kikuchi | 2020-05-12 |
| 10096454 | Plasma processing apparatus | Naohiko Okunishi | 2018-10-09 |
| 5228091 | Loudness control circuit for selectively emphasizing both high frequency and low frequency components | Shinichi Ogura, Shigeru Munetomo, Shuichi Horie, Hideaki Kobayashi, Satoshi Sekine | 1993-07-13 |