The Patent Finder
MA

Maxell, Ltd.

Filings on record here from 2001, where this site's data begins
OverviewNotableFeesChangesFamiliesPatent listSources & methods

1,675 patents currently held

Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
19 more records may belong here and await a decision; they are not counted.

The next term ends in Nov 2026. from the record

Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
424
Ending by 2030
Nov 2026
Next term end
1,067
Patent families

When these terms end

Held patents by the year their term ends
notable patents fee due within 90 days 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. Fee due within 90 days: a maintenance fee is due within 90 days of when this page was computed and not yet paid.

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.
  • 6 fees due Nov 14 to 30, 2026 · next Nov 14
  • 27 fees due Dec 2 to 30, 2026 · next Dec 2
  • 26 fees due Jan 2 to 30, 2027 · next Jan 2
  • 32 fees due Feb 1 to 28, 2027 · next Feb 1
  • 26 fees due Mar 1 to 29, 2027 · next Mar 1
  • 31 fees due Apr 1 to 30, 2027 · next Apr 1
  • 23 fees due May 3 to 28, 2027 · next May 3
  • 24 fees due Jun 1 to 30, 2027 · next Jun 1
  • 28 fees due Jul 2 to 30, 2027 · next Jul 2
  • 19 fees due Aug 2 to 27, 2027 · next Aug 2
  • 19 fees due Sep 3 to 30, 2027 · next Sep 3
  • 35 fees due Oct 2 to 30, 2027 · next Oct 2
  • 10 fees due Nov 5 to 12, 2027 · next Nov 5

Which patents, and when each one lapses · Pro

Recent changes

What they patent

The 5 largest of its 1,067 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.

Patents held now

Soonest term end first.
PatentTitleStatusExpiresConfidence
US 8,289,450Video Processing Apparatus with Corrector for Correcting an Input Video Signal
In force
 · High confidence
In forceHigh confidence
US 7,562,231Apparatus and System for Recording and Reproducing Contents
In force
 · High confidence
In forceHigh confidence
US 7,436,140Image Display Device and Stand for Image Display Device
In force
 · High confidence
In forceHigh confidence
US 7,505,392An Optical Disk with a Plurality of Radially Extending Marks for Recording Reflectance Data of the Optical Disk
In force
 · High confidence
In forceHigh confidence
US 8,073,312Recorder Equipped with Dubbing Function
In force
 · High confidence
In forceHigh confidence
US 7,644,265Content Transmitting Device, Content Receiving Device and Content Transmitting Method
In force
 · High confidence
In forceHigh confidence
US 8,111,983Camera
In force
 · High confidence
In forceHigh confidence
US 8,036,523Focus Adjustment Device, Imaging Device and Focus Adjustment Method
In force
 · Low confidence
In forceLow confidence
US 7,457,512Information Recording Device
In force
 · High confidence
In forceHigh confidence
US 7,567,301Flat Panel Television
In force
 · High confidence
In forceHigh confidence
10 of 1,675 patents shown.
Pro members see all 1,675.
Pro members: see all 1,675 patents
Also on record, not counted in the 1,675: 986 patents ended · 422 applications pending · 97 applications 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.
Fee due within 90 days marks a patent with a maintenance fee due within 90 days of the date this page was computed and not yet recorded paid, so it can end earlier than the bar shows. A fee left unpaid ends the patent at the close of the six month grace period that follows its due date, not on the due date itself. It is not a prediction that the fee will be missed.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited