H01J 23/48
For linking interaction circuit with coaxial lines
Official title: for linking interaction circuit with coaxial lines; Devices of the coupled helices type (H01J23/46 takes precedence)
H01J23/48 (For linking interaction circuit with coaxial lines) appears on 23 US grants and 7 published applications in this corpus.
Search patents in H01J- Granted patents
- 23
- Published applications
- 7
- Assignees
- 22
- Inventors
- 46
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- High-frequency coaxial input coupler including a transmission window that couples a waveguide to an acceleration cavity17 Mar 2026US 12,580,287 B2Canon Electron Tubes & Devices Co., Ltd.
- Magnetron16 Jul 2019US 10,354,829 B2Panasonic Intellectual Property Management Co., Ltd.
- Traveling wave tube1 Mar 2011US 7,898,181 B2Netcomsec Co., Ltd.
- Electron beam tube output arrangement15 May 2007US 7,218,053 B2E2V Technologies (UK) Limited
- Magnetrons11 Apr 2006US 7,026,761 B2E2V Technologies (UK) Limited
- Compact mode converter waveguide13 Nov 2025US 2025/0349486 A1Varian Medical Systems, Inc.
- High-frequency input coupler and waveguide28 Dec 2023US 2023/0420821 A1Canon Electron Tubes & Devices Co., Ltd.
- Magnetron23 May 2019US 2019/0157034 A1Panasonic Intellectual Property Management Co., Ltd.
- Traveling wave tube8 Jan 2009US 2009/0009086 A1NEC Microwave Tube, Ltd.
- Electron beam tube output arrangement20 Jul 2006US 2006/0158139 A1E2V Technologies (UK) Limited
Most cited
By later US patents
- Microwave apparatus having coaxial waveguide partitioned by vacuum-tight dielectric plate127US 4,734,666 AKabushiki Kaisha Toshiba · 1988
- Magnetron coaxial adaptor having a cap which fits over the magnetron output antenna31US 5,216,327 ARaytheon Company · 1993
- Magnetron having a lowered oscillation frequency and processing equipment employing the same10US 6,653,788 B2Hitachi Electronic Devices Co., Ltd. · 2003
- Traveling wave tube8US 4,185,225 ANorthrop Corporation · 1980
- Sealing structures for the output portions of magnetrons7US 3,967,087 AHitachi, Ltd. · 1976