Maintenance fees coming due

Minebea Co., Ltd.

14 maintenance fees come due in the 12 months from Nov 15, 2026, the next on Nov 28, 2026. Unpaid by May 28, 2027, that one lapses early.

A maintenance fee does not end a patent on its due date. It falls due at 3.5, 7.5 and 11.5 years from grant, and the patent lapses only if the fee is still unpaid at the end of the six month grace period that follows.

Patent	Title	Holder	Status	Fee due	Lapses if unpaid	Expires	Confidence
US 10,304,761	Semiconductor Device and Alternator Using Same Minebea Power Semiconductor Device Inc. In force Fee due Nov 28, 2026 Lapses if unpaid May 28, 2027 Term ends May 27, 2037 · High confidence	Minebea Power Semiconductor Device Inc.	In force	Nov 28, 2026	May 28, 2027	Term ends May 27, 2037	High confidence
US 10,319,849	Semiconductor Device, and Alternator and Power Conversion Device Which Use Same Minebea Power Semiconductor Device Inc. In force Fee due Dec 11, 2026 Lapses if unpaid Jun 11, 2027 Term ends Aug 19, 2035 · High confidence	Minebea Power Semiconductor Device Inc.	In force	Dec 11, 2026	Jun 11, 2027	Term ends Aug 19, 2035	High confidence
US 9,076,774	Semiconductor Device And A Method Of Manufacturing Same Minebea Power Semiconductor Device Inc. In force Fee due Jan 7, 2027 Lapses if unpaid Jul 7, 2027 Term ends May 15, 2033 · High confidence	Minebea Power Semiconductor Device Inc.	In force	Jan 7, 2027	Jul 7, 2027	Term ends May 15, 2033	High confidence
US 9,082,814	Semiconductor Devices and Power Conversion Systems Minebea Power Semiconductor Device Inc. In force Fee due Jan 14, 2027 Lapses if unpaid Jul 14, 2027 Term ends Dec 16, 2033 · High confidence	Minebea Power Semiconductor Device Inc.	In force	Jan 14, 2027	Jul 14, 2027	Term ends Dec 16, 2033	High confidence
US 10,374,414	Semiconductor power module and power conversion apparatus using the same Minebea Power Semiconductor Device Inc. In force Fee due Feb 6, 2027 Lapses if unpaid Aug 6, 2027 Term ends Dec 7, 2037 · High confidence	Minebea Power Semiconductor Device Inc.	In force	Feb 6, 2027	Aug 6, 2027	Term ends Dec 7, 2037	High confidence
US 11,735,997	Upper Arm Drive Circuit Having a Reverse Current Prevention Circuit Disposed Between a Power Supply of a Power Conversion Device and a First Capacitor and Control Method Thereof Minebea Power Semiconductor Device Inc. In force Fee due Feb 22, 2027 Lapses if unpaid Aug 23, 2027 Term ends Jun 19, 2041 · High confidence	Minebea Power Semiconductor Device Inc.	In force	Feb 22, 2027	Aug 23, 2027	Term ends Jun 19, 2041	High confidence
US 10,432,074	Vibrator Unit and Vibration Generator Minebea Co., Ltd. In force Fee due Apr 1, 2027 Lapses if unpaid Oct 1, 2027 Term ends Dec 22, 2037 · High confidence	Minebea Co., Ltd.	In force	Apr 1, 2027	Oct 1, 2027	Term ends Dec 22, 2037	High confidence
US 9,190,992	Semiconductor Device and Ultrasonic Diagnostic Apparatus Using the Same Minebea Power Semiconductor Device Inc. In force Fee due May 17, 2027 Lapses if unpaid Nov 17, 2027 Term ends Sep 4, 2034 · High confidence	Minebea Power Semiconductor Device Inc.	In force	May 17, 2027	Nov 17, 2027	Term ends Sep 4, 2034	High confidence
US 10,522,638	Semiconductor Chip and Power Module, and Manufacturing Method of the Same Minebea Power Semiconductor Device Inc. In force Fee due Jun 30, 2027 Lapses if unpaid Jan 3, 2028 Term ends Oct 5, 2038 · High confidence	Minebea Power Semiconductor Device Inc.	In force	Jun 30, 2027	Jan 3, 2028	Term ends Oct 5, 2038	High confidence
US 10,529,813	Semiconductor Device, Power Module, and Power Conversion Device Minebea Power Semiconductor Device Inc. In force Fee due Jul 7, 2027 Lapses if unpaid Jan 7, 2028 Term ends Nov 13, 2038 · High confidence	Minebea Power Semiconductor Device Inc.	In force	Jul 7, 2027	Jan 7, 2028	Term ends Nov 13, 2038	High confidence
4 more maintenance fees coming due in the 12 months from Nov 15, 2026 · Pro

10 of 14 patents shown. Soonest fee due date first, then patent number.

Pro members see every patent with a maintenance fee coming due: number, title, status, the due date, and the date it lapses if the fee goes unpaid through the grace period.

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Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.