H01J 2235/106
Dynamic pressure bearings
Official title: Dynamic pressure bearings, e.g. helical groove type
H01J2235/106 (Dynamic pressure bearings) appears on 71 US grants and 31 published applications in this corpus.
Search patents in H01J- Granted patents
- 71
- Published applications
- 31
- Assignees
- 14
- Inventors
- 89
- Latest grant
- 30 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 7 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 4 | 3 |
| 2003 | 1 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 2 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 2 |
| 2010 | 2 | 1 |
| 2011 | 0 | 2 |
| 2012 | 1 | 1 |
| 2013 | 1 | 1 |
| 2014 | 2 | 3 |
| 2015 | 1 | 0 |
| 2016 | 2 | 1 |
| 2017 | 0 | 1 |
| 2018 | 3 | 3 |
| 2019 | 2 | 1 |
| 2020 | 2 | 0 |
| 2021 | 3 | 2 |
| 2022 | 0 | 1 |
| 2023 | 2 | 4 |
| 2024 | 3 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sliding bearing unit and rotary anode type X-RAY tube30 Sep 2025US 12,431,317 B2Canon Electron Tubes & Devices Co., Ltd.
- Rotary x-ray anode having an integrated liquid metal bearing outer shell24 Sep 2024US 12,100,572 B2Plansee SE
- Hydrodynamic bearing system and method for operating said hydrodynamic bearing system3 Sep 2024US 12,078,203 B2GE Precision Healthcare LLC
- Liquid metal bearing with enhanced sealing structures30 Jul 2024US 12,051,558 B2GE Precision Healthcare LLC
- Liquid metal bearing structure with enhanced sealing structures6 Jun 2023US 11,670,475 B2GE Precision Healthcare LLC
- Rotating anode x-ray tube12 Mar 2026US 2026/0074137 A1Canon Electron Tubes & Devices Co., Ltd.
- Liquid metal bearing with enhanced sealing structures26 Oct 2023US 2023/0343544 A1GE Precision Healthcare LLC
- Hydrodynamic bearing system and method for operating said hydrodynamic bearing system31 Aug 2023US 2023/0272819 A1GE Precision Healthcare LLC
- Rotary x-ray anode having an integrated liquid metal bearing outer shell16 Mar 2023US 2023/0079317 A1Plansee SE
- Sliding bearing unit and rotary anode type x-ray tube19 Jan 2023US 2023/0018791 A1Canon Electron Tubes & Devices Co., Ltd.
Most cited
By later US patents
- Rotary anode X-ray tube having a sliding bearing58US 4,677,651 AU. S. Philips Corporation · 1987
- Rotary-anode X-ray tube51US 4,210,371 AU. S. Philips Corporation · 1980
- X-ray apparatus having a control device for preventing damaging X-ray emissions27US 5,809,106 AKabushiki Kaisha Toshiba · 1998
- X-ray tube apparatus25US 5,260,983 AKabushiki Kaisha Toshiba · 1993
- X-ray tube comprising anode disc rotatably supported by bearing having push-pull bearing on an axial face24US 4,641,332 AU. S. Philips Corporation · 1987