The Patent Finder

Idemitsu Unitech Co., Ltd.

33 patents currently held · Updated Nov 15, 2026
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

Recorded under 4 name spellings.

10
Ending by 2030
Jul 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 Apr 22, 2027
    The maintenance fee for Bag with zipper tape and method for producing same (US 10,450,106) comes due Apr 22, 2027. Unpaid by Oct 22, 2027, it lapses early.
  • 1 fee due Jun 19, 2027
    The maintenance fee for Bag body, film body, and method for manufacturing bag body (US 11,845,589) comes due Jun 19, 2027. Unpaid by Dec 20, 2027, it lapses early.
  • 1 fee due Jul 30, 2027
    The maintenance fee for Tape, Zipper Tape, and Container with Tape and Method for Manufacture Therefor (US 11,882,908) comes due Jul 30, 2027. Unpaid by Jan 31, 2028, it lapses early.
  • 1 fee due Aug 13, 2027
    The maintenance fee for Bag with attached zipper tape, manufacturing method of bag with attached zipper tape (US 11,897,662) comes due Aug 13, 2027. Unpaid by Feb 14, 2028, it lapses early.
  • 1 fee due Sep 29, 2027
    The maintenance fee for Easily tearable zipper tape and packaging bag with easily tearable zipper tape (US 9,296,522) comes due Sep 29, 2027. Unpaid by Mar 29, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

Nothing was recorded against this company's patents in the last 90 days.

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.
PatentTitleStatus Expires Confidence
US 7,887,653Device and method for manufacturing bag with chuck tape
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,891,516Container, packaging body, and method of manufacturing container
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,227,774Zipper and zipper-equipped bag
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,066,434Chuck tape with cut tape, its manufacturing method, and packaging bag with chuck tape
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,011,831Zipper tape, packing bag with zipper tape and apparatus for producing packing bag with zipper tape
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,518,321Biaxially oriented nylon film, laminate wrapping material and process for production of biaxially oriented nylon film
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,540,428Easily tearable fastener tape, method of producing the fastener tape, packaging bag with easily tearable fastener tape, and device and method for producing the packaging bag
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,296,522Easily tearable zipper tape and packaging bag with easily tearable zipper tape
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,714,821Cutting tape and packaging bag with cutting tape
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,011,006Bag with chuck tape
In force
 · High confidence
In forceHigh confidence
10 of 33 patents shown.
Pro members see all 33.
Pro members: see all 33 patents
Also on record, not counted in the 33: 21 lapsed for an unpaid fee · 7 ended at full term. 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.

1 pending · 4 abandoned · 35 no status recorded

List them

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited