USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Kuraray Fastening Co., Ltd.

USPTO PatentsView assignee record - 22 granted patents across 24 technology areas, active 2016–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: A44B (BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE).

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

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

12.0

Avg claims per patent

+114%

5-year filing velocity

The verdict

Kuraray holds 22 US patents across 24 technology areas, rank #13,516 of 50,000 tracked assignees.

#13,516
of 50,000 US assignees by volume: Top 27%
by Innovation Score (43.9/100): 12.0
avg claims per patent: +114%
filing velocity, last 5 yrs

Portfolio overview

Kuraray Fastening Co., Ltd. has been granted 22 US utility patents between 2016 and 2025, placing Kuraray Fastening Co., Ltd. at rank #13,516 across all assignees tracked by PlainPatent. This portfolio spans 24 distinct Cooperative Patent Classification (CPC) subclasses, averaging 12.0 claims per patent with primary concentration in A44B (BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE). As a Foreign Corporation, Kuraray Fastening Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Kuraray sits between KCC Corporation (22 patents, rank #13,512) and King Faisal Specialist Hospital & Research Centre (22 patents, rank #13,520) - the closest US assignees by grant volume. The composite Innovation Score of 43.9/100 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 15 grants, compared with 7 in the 2015–2019 window, a +114% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. 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. Kuraray Fastening Co., Ltd.'s 12.0 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 24 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Kuraray Fastening Co., Ltd. against peers pursuing similar technology classes.

KCC

22
Kiefel

22
Knorr-bremse Gese…

22
Kromek

22
Kyonggi Universit…

22
Kyungshin

22
Kadmon

22
King Faisal Speci…

22
Kuraray Fastening ◀

22

What this shows Kuraray holds 22 patents at rank #13,516, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Kuraray

By rank, the assignees closest to #13,516 in granted patent volume.

Leaders in A44B (Buttons)

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

Kuraray's Innovation Score vs. every tracked assignee

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

44 Top 27% higher than 73% 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 · 2016–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Kuraray Fastening Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	2	9.1%
2017	3	13.6%
2019	2	9.1%
2020	2	9.1%
2021	3	13.6%
2022	1	4.5%
2023	2	9.1%
2024	6	27.3%
2025	1	4.5%

Which technologies does Kuraray Fastening Co., Ltd. patent most?

A44B - BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE 21

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 6

B29L - INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES 4

B29C - SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 4

B29K - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR ; MOULDS, ; REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS 4

B60R - VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR 4

D10B - INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES 3

C08L - COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 3

D04H - MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL ; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION 2

B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 2

A44D - INDEXING SCHEME RELATING TO BUTTONS, PINS, BUCKLES OR SLIDE FASTENERS, AND TO JEWELLERY, BRACELETS OR OTHER PERSONAL ADORNMENTS 2

B60N - SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR 1

D04B - KNITTING 1

A41D - OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES 1

A61F - FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRS 1

Top 15 of 24 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Multi-domain

Claim Depth Standard

Velocity Accelerating

Where it ranks

Overall rank by patents

#13,516

Across all tracked assignees

Innovation Score

43.9 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 Kuraray Fastening Co., Ltd. hold?

Kuraray Fastening Co., Ltd. holds 22 US granted patents filed between 2016 and 2025, spanning 24 technology areas.

What is Kuraray Fastening Co., Ltd.'s Innovation Score?

Kuraray Fastening Co., Ltd. has an Innovation Score of 43.9 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Kuraray Fastening Co., Ltd. focus on?

Kuraray Fastening Co., Ltd.'s top technology area is A44B (BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE) with 21 patents. The company has filed patents in 24 CPC subclasses total.

Is Kuraray Fastening Co., Ltd.'s patent filing rate increasing or decreasing?

Kuraray Fastening Co., Ltd.'s recent filing velocity is +114% compared to the prior five-year period. This indicates accelerating innovation.

What does claim depth mean for Kuraray Fastening Co., Ltd.'s patents?

Kuraray Fastening Co., Ltd.'s patents average 12.0 claims each. This falls within the standard range, providing solid legal coverage.

How is the Kuraray Fastening Co., 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

Kuraray's 22 grants land it in the top 27% 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 - Kuraray ranks #13,516 of 50,000. Top 50 holders
Most of this portfolio concentrates in A44B - see who else leads that technology area. A44B 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.