Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8217750 | 3-electrode surge protective device | — | 2012-07-10 |
| 7719174 | Surface mounting discharge tube has soldering tapers formed at peripheral edges of electrode side surfaces that seal and project outwardly from opposite ends of cylindrical ceramic envelope | Kesayuki Takeuchi, Chisato Emori | 2010-05-18 |
| 7456576 | Discharge tube | Chisato Emori, Kesayuki Takeuchi | 2008-11-25 |
| 7218051 | Discharge tube | — | 2007-05-15 |
| 7116049 | Discharge tube with a specific amount of hydrogen gas by volume | — | 2006-10-03 |
| 7102289 | Discharge tube | — | 2006-09-05 |
| 6617770 | Gas filled switching electric discharge tube | — | 2003-09-09 |
| 6617804 | Gas filled switching electric discharge tube | — | 2003-09-09 |
| 6430018 | Three-electrode-discharge surge arrester | — | 2002-08-06 |
| 6313581 | Electrical discharge tube having trigger wires | — | 2001-11-06 |
| 6194820 | Discharge tube having switching spark gap | — | 2001-02-27 |
| 6025672 | Gas Discharge surge tube with specific trigger wires arrangement | — | 2000-02-15 |
| 5030414 | Nuclear fuel rod | Emiko Higashinakagawa, Masao Yamamoto | 1991-07-09 |