USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Fujikura Ltd.

USPTO PatentsView assignee record - 933 granted patents across 131 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: G02B (OPTICAL ELEMENTS, SYSTEMS OR APPARATUS).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

933

Total patents granted

131

CPC technology areas

9.4

Avg claims per patent

-26%

5-year filing velocity

The verdict

Fujikura holds 933 US patents across 131 technology areas, rank #473 of 50,000 tracked assignees.

#473
of 50,000 US assignees by volume: Top 4%
by Innovation Score (58.7/100): 9.4
avg claims per patent: -26%
filing velocity, last 5 yrs

Portfolio overview

Fujikura Ltd. has been granted 933 US utility patents between 2015 and 2025, placing Fujikura Ltd. at rank #473 across all assignees tracked by PlainPatent. This portfolio spans 131 distinct Cooperative Patent Classification (CPC) subclasses, averaging 9.4 claims per patent with primary concentration in G02B (OPTICAL ELEMENTS, SYSTEMS OR APPARATUS). As a Foreign Corporation, Fujikura Ltd. is one of the broader-portfolio assignees in the PatentsView dataset. By volume, Fujikura sits between NCR Corporation (942 patents, rank #469) and Level 3 Communications, Llc (928 patents, rank #477) - the closest US assignees by grant volume. The composite Innovation Score of 58.7/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 398 grants, compared with 535 in the 2015–2019 window, a -26% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. Fujikura Ltd.'s 9.4 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a diversified footprint across 100+ CPC subclasses spreads risk across many technology fronts. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Fujikura Ltd. against peers pursuing similar technology classes.

NCR

942
Midea Group

941
Uber

941
Agency FOR Scienc…

939
Wacom

933
Fujikura ◀

933
Lumileds

930
IHI

928
Level 3 Communica…

928

What this shows Fujikura holds 933 patents at rank #473, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Fujikura

By rank, the assignees closest to #473 in granted patent volume.

Leaders in G02B (Optical Elements)

Other assignees with the most granted patents in Fujikura's primary technology class.

Fujikura's Innovation Score vs. every tracked assignee

Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)

59 Top 4% higher than 96% of 50,000 US assignees

Each bar is a band; taller bars hold more US assignees. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source USPTO PatentsView, PlainPatent Innovation Score · 2015–2025

USPTO utility patent grants by year · 2015–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

Fujikura Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	83	8.9%
2016	110	11.8%
2017	94	10.1%
2018	130	13.9%
2019	118	12.6%
2020	95	10.2%
2021	65	7.0%
2022	67	7.2%
2023	56	6.0%
2024	59	6.3%
2025	56	6.0%

Which technologies does Fujikura Ltd. patent most?

G02B - OPTICAL ELEMENTS, SYSTEMS OR APPARATUS 502

H01S - DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL 111

H05K - PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 77

H01B - CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES 59

H01Q - ANTENNAS, i.e. RADIO AERIALS 56

H01P - WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE 56

C03B - MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES 56

H01L - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10 45

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 45

H01R - ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS 42

G02F - OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS 42

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 38

A61B - DIAGNOSIS; SURGERY; IDENTIFICATION 37

C03C - CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS 36

H04B - TRANSMISSION 32

Top 15 of 131 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Diversified

Claim Depth Simple

Velocity Declining

Where it ranks

Overall rank by patents

#473

Across all tracked assignees

Innovation Score

58.7 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does Fujikura Ltd. hold?

Fujikura Ltd. holds 933 US granted patents filed between 2015 and 2025, spanning 131 technology areas.

What is Fujikura Ltd.'s Innovation Score?

Fujikura Ltd. has an Innovation Score of 58.7 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Fujikura Ltd. focus on?

Fujikura Ltd.'s top technology area is G02B (OPTICAL ELEMENTS, SYSTEMS OR APPARATUS) with 502 patents. The company has filed patents in 131 CPC subclasses total.

Is Fujikura Ltd.'s patent filing rate increasing or decreasing?

Fujikura Ltd.'s recent filing velocity is -26% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

What does claim depth mean for Fujikura Ltd.'s patents?

Fujikura Ltd.'s patents average 9.4 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Fujikura Ltd. patent data sourced?

All patent data comes from USPTO PatentsView, a public research dataset maintained by the United States Patent and Trademark Office covering US granted utility patents from 2015 to 2025.

How to use this portfolio

Fujikura's 933 grants land it in the top 4% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - Fujikura ranks #473 of 50,000. Top 50 holders
Most of this portfolio concentrates in G02B - see who else leads that technology area. G02B leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the USPTO PatentsView database. Consult a qualified professional before making decisions based on this data.

Read our methodology - how this data is sourced, computed, and verified.

Data sources used on this page

USPTO PatentsView - the disambiguated bulk patent-grant, assignee, and CPC data this page's figures are derived from. patentsview.org
Cooperative Patent Classification (CPC) - the joint USPTO/EPO classification scheme used to group patents by technology area. cooperativepatentclassification.org
USPTO Patent Public Search - the official interface to verify the status of any individual patent. ppubs.uspto.gov

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Every figure on PlainPatent is rendered directly from USPTO source data, no number is typed in by an editor. This page draws directly on USPTO source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.