Four patents currently held, every record listed here
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
The next term ends in Dec 2026. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
2
Ending by 2030
Dec 2026
Next term end
3
Patent families
When these terms end
Each bar runs from grant to computed term end. 2009 to 2033.20142019202420292033
Every computed term in this portfolio is shown above.Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
Notable patents
Ranked by citations and family size, against patents of the same kind granted the same year. How we rank
Notable
Ends Dec 2026 · High confidence
Also notable
Ends Aug 2033 · High confidence
Also notable
Ends Jan 2029 · High confidence
Plasma Source and Plasma Processing Apparatus
US 7,632,379
The most cited patent in this portfolio, cited by 90 later US patents, top 10% of utility patents granted in 2009 in our data. Protection runs to 2026.
Radical Generator and Molecular Beam Epitaxy Apparatus
US 9,447,518
Granted 2016 and renewed at every maintenance window due so far. Protection runs to 2033.
Particle Density Measuring Probe and Particle Density Measuring Equipment
US 7,782,463
Renewed at every maintenance window since the 2010 grant; no more fees are due before its term ends in 2029.
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 Sep 3, 2027The maintenance fee for Radical Generator and Molecular Beam Epitaxy Apparatus (US 10,577,719) comes due Sep 3, 2027. Unpaid by Mar 3, 2028, it lapses early.
Recent changes
Nothing was recorded against this company's patents in the last 90 days.
What they patent
The 2 largest of its 3 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Radical Generator and Molecular Beam Epitaxy Apparatus | 2 in force | to Aug 2033 |
| Plasma Source and Plasma Processing Apparatus | 1 in force | to Dec 2026 |
Patents held now
Soonest term end first.
Showing 1 to 4 of 4
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,632,379 | Plasma Source and Plasma Processing Apparatus In force · High confidence | In force | High confidence | |
| US 7,782,463 | Particle Density Measuring Probe and Particle Density Measuring Equipment In force · High confidence | In force | High confidence | |
| US 10,577,719 | Radical Generator and Molecular Beam Epitaxy Apparatus In force · High confidence | In force | High confidence | |
| US 9,447,518 | Radical Generator and Molecular Beam Epitaxy Apparatus held by National University Corporation Nagoya University, Nu Eco Engineering Co., Ltd. and Katagiri Engineering Co., Ltd. In force · High confidence | In force | High confidence |
Also on record, not counted in the 4: 2 patents ended · 1 application abandoned. 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.