Mitsui High-Tec, Inc.
12 more in force are now held by other companies
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
Recorded under 5 name spellings.
13
Ending by 2030
Jan 2027
Next term end
When these terms end
Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045
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 Dec 23, 2026The maintenance fee for Rotor core and method of manufacturing the same (US 9,065,318) comes due Dec 23, 2026. Unpaid by Jun 23, 2027, it lapses early.
- 3 fees due Jan 9 to 30, 2027 · next Jan 9
- 1 fee due Feb 27, 2027The maintenance fee for Blanking die apparatus (US 10,391,539) comes due Feb 27, 2027. Unpaid by Aug 27, 2027, it lapses early.
- 4 fees due Mar 17 to 29, 2027 · next Mar 17
- 2 fees due Apr 15 to 24, 2027 · next Apr 15
- 1 fee due May 12, 2027The maintenance fee for Armature and method for producing armature (US 10,476,339) comes due May 12, 2027. Unpaid by Nov 12, 2027, it lapses early.
- 1 fee due Jul 9, 2027The maintenance fee for Method of manufacturing a core product (US 11,865,739) comes due Jul 9, 2027. Unpaid by Jan 10, 2028, it lapses early.
- 1 fee due Aug 11, 2027The maintenance fee for Apparatus for manufacturing laminated iron core (US 10,560,005) comes due Aug 11, 2027. Unpaid by Feb 11, 2028, it lapses early.
- 1 fee due Sep 3, 2027The maintenance fee for Laminated iron core and manufacturing method of laminated iron core (US 10,581,303) comes due Sep 3, 2027. Unpaid by Mar 3, 2028, it lapses early.
- 4 fees due Oct 7 to 30, 2027 · next Oct 7
Recent changes
- 2 of the patents on this record were granted since Aug 16, 2026
Patents held now
Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,653,984 | Method of resin sealing permanent magnets in laminated rotor core In force · From the USPTO record | In force | From the USPTO record | |
| US 9,003,639 | Method of manufacturing a rotor In force · From the USPTO record | In force | From the USPTO record | |
| US 8,058,767 | Rotor and Method of Manufacturing the Same and Electric Vehicle In force · High confidence | In force | High confidence | |
| US RE45,075 | Profile grinding machine In force · From the USPTO record | In force | From the USPTO record | |
| US 10,498,203 | Method of resin sealing permanent magnets in laminated rotor core In force · From the USPTO record | In force | From the USPTO record | |
| US 7,667,367 | Laminated core and method for manufacturing the same In force · From the USPTO record | In force | From the USPTO record | |
| US 8,020,280 | Rotor Manufacturing Method In force · High confidence | In force | High confidence | |
| US 8,136,229 | Method of producing variant-shaped laminated core In force · From the USPTO record | In force | From the USPTO record | |
| US 7,897,089 | Method of resin sealing permanent magnets in laminated rotor core In force · From the USPTO record | In force | From the USPTO record | |
| US 8,375,834 | Die assembly In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 134: 12 patents in force now held by others · 45 lapsed for an unpaid fee · 23 ended at full term · 1 surrendered on reissue. List them
Sources and methods
Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand.
How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
Published applications
US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.
3 pending · 1 abandoned · 13 no status recorded