16 patents currently held
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
The next term ends in May 2030. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
1
Ending by 2030
May 2030
Next term end
15
Patent families
When these terms end
Held patents by the year their term ends
notable patents
all others
Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
Notable: the highest-ranked patents in this portfolio by citations and family size.
Notable patents
Ranked by citations and family size, against patents of the same kind granted the same year. How we rank
Notable
Ends May 2030 · High confidence
Also notable
Ends Mar 2038 · High confidence
Also notable
Ends Jun 2035 · High confidence
Apparatus and Method of Obtaining Field by Measurement
US 8,536,862
The most cited patent in this portfolio, cited by 30 later US patents, top 25% of utility patents granted in 2013 in our data. Protection runs to 2030.
Observation Method and Observation Device
US 11,041,826
The newest of the three, granted 2021. It anchors the portfolio to 2038, later than anything else here.
Conductivity Distribution Derivation Method and Conductivity Distribution Derivation Device
US 10,254,352
Granted 2019 and renewed at 2 of 3 maintenance windows. Protection runs to 2035.
Fee deadlines
Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.
- 1 fee due May 28, 2027The maintenance fee for Storage Battery Inspection Device and Storage Battery Inspection Method (US 11,828,811) comes due May 28, 2027. Unpaid by Nov 29, 2027, it lapses early.
- 2 fees due Sep 3 to 10, 2027 · next Sep 3
Recent changes
- 1 of the patents on this record was granted since Aug 16, 2026
- 1 term has ended since Aug 16, 2026
What they patent
The 5 largest of its 15 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Observation Method and Observation Device | 2 in force | to Mar 2038 |
| Autonomous Driving Control System and Autonomous Driving Control Method | 1 in force | to Jun 2043 |
| Inspecting Device and Inspecting Method | 1 in force | to Mar 2043 |
| Scattering Tomography Device and Scattering Tomography Method | 1 in force | to Mar 2043 |
| Air Purification System and Protective Clothing | 1 in force | to Jun 2042 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,536,862 | Apparatus and Method of Obtaining Field by Measurement held by Kyoto University and Integral Geometry Science Inc. In force · High confidence | In force | High confidence | |
| US 10,578,552 | Scattering Tomography Method and Scattering Tomography Device In force · High confidence | In force | High confidence | |
| US 10,254,352 | Conductivity Distribution Derivation Method and Conductivity Distribution Derivation Device In force · High confidence | In force | High confidence | |
| US 10,101,282 | Scattering Tomography Method and Scattering Tomography Device In force · High confidence | In force | High confidence | |
| US 10,586,354 | Imaging Method and Imaging Apparatus In force · High confidence | In force | High confidence | |
| US 11,422,110 | Observation Method and Observation Device In force · High confidence | In force | High confidence | |
| US 11,041,826 | Observation Method and Observation Device In force · High confidence | In force | High confidence | |
| US 11,366,079 | Measurement Device and Measurement Method In force · High confidence | In force | High confidence | |
| US 11,828,811 | Storage Battery Inspection Device and Storage Battery Inspection Method In force · High confidence | In force | High confidence | |
| US 12,105,159 | External Field Response Distribution Visualization Device and External Field Response Distribution Visualization Method In force · High confidence | In force | High confidence |
Also on record, not counted in the 16: 1 patent ended · 3 applications pending. List them
Sources and methods
Compiled from USPTO application file histories, grants and recorded assignments, with the company's own names reviewed by hand. How this record was built
Portfolio grouped automatically from ownership conveyances to the names matched to this company, usually every name that begins with its own, so it counts patents an affiliate holds; each list row names the holder of record. Security interests are excluded and ambiguous records are not reviewed by hand.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.