One more such patent application: JP2021-165829A, published on 14 October 2021. It was filed on 12 February 2021.
特開2021-165829 | 知財ポータル「IP Force」
This patent application includes seven examples:
- Example 1: 72.08-291.32mm f/4.6-5.7
- Example 2: 71.90-291.36mm f/4.6-5.8
- Example 3: 103.00-388.00mm f/4.6-5.7
- Example 4: 72.10-388.00mm f/4.1-5.8
- Example 5: 72.10-388.00mm f/4.1-5.8
- Example 6: 154.50-582.00mm f/5.3-6.5
- Example 7: 103.00-292.00mm f/2.9-4.1
All of them have an image circle's radius of 21.64mm (i.e. 24x36 lenses), all of them include SR.
Example 4 has a very short backfocus (between 8.3mm and 32.2mm depending on the focal length) and is impractical for an ILC. This is the same with example 5: backfocus ranges between 7.4mm and 33.5mm.
Example 7 has a short backfocus too (18mm). It's impractical for an SLR but could be used with a mirrorless mount.
In short and using 'commercial' focal lengths and apertures:
- 70-300mm f/4.5-5.6: two examples
- 70-400mm f/4-5.6: two examples (unusable for any ILC though, too short backfocus)
- 100-300mm f/2.8-4: one example (for mirrorless mounts only)
- 100-400mm f/4.5-5.6: one example
- 150-600mm f/5-6.3: one example