Where does Tanaka Kikinzoku Kogyo K.K. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Tanaka Kikinzoku Kogyo K.K. ranks #2,122 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does Tanaka Kikinzoku Kogyo K.K. hold?

Tanaka Kikinzoku Kogyo K.K. holds 186 US utility patents granted between 2015 and 2025, spanning 81 technology areas.

What is Tanaka Kikinzoku Kogyo K.K.'s Innovation Score?

Tanaka Kikinzoku Kogyo K.K. has an Innovation Score of 55.7 out of 100 (top 7% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Tanaka Kikinzoku Kogyo K.K. focus on?

Tanaka Kikinzoku Kogyo K.K.'s top technology area is C22C (Alloys) with 68 patents. Grants appear in 81 CPC subclasses total.

Is Tanaka Kikinzoku Kogyo K.K.'s patent grant rate increasing or decreasing?

Tanaka Kikinzoku Kogyo K.K.'s recent grant velocity is -6% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

What does claim depth mean for Tanaka Kikinzoku Kogyo K.K.'s patents?

Tanaka Kikinzoku Kogyo K.K.'s patents average 11.7 claims each. This is an aggregate descriptive count from the grant record; it does not establish claim scope, legal strength, enforceability, or design-around risk.

How is the Tanaka Kikinzoku Kogyo K.K. 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Tanaka Kikinzoku Kogyo K.K.

USPTO PatentsView assignee record - 186 granted patents across 81 technology areas, recorded in grant years 2015–2025. Grant-trend analysis is cross-referenced to USPTO Patent Public Search; it does not measure application filings, current R&D, or legal strength. Primary class: C22C (Alloys).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Tanaka ranks #2,122 of 49,997 tracked US assignees by granted-patent volume, with 186 patents across 81 technology areas.

#2,122
of 49,997 US assignees by volume: Top 7%
by Innovation Score (55.7/100): 11.7
avg claims per patent: -6%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R2122 · Foreign Corporation #2,122 · 186 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-FLAT · BOOK-FULL

GRANTS-MID 186 grants
TOP-DECILE #2,122/49,997
PHOTO-FINISH Barco
CPC-WIDE C22C · 81 areas
INNOV-PAR 55.7/100
CLAIMS-PAR 11.7 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-FLAT -6% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Barco N.V. (±0 grants)

Instrument codes from this assignee’s USPTO PatentsView grant sheet: volume band, corpus rank, photo-finish peer, lead CPC, Innovation Score, claim depth, assignee type, velocity, and book completeness. Not a USPTO rating of patent strength.

Qualcomm Incorporated · highest

85
Shanghai Yanfeng… · near

56
Tanaka Kikinzoku… · this assignee

56
Trumpf Werkzeugmasch… · near

56
Architecture… · near

56
Sumitomo Bakelite · near

56
3D Lighting… · lowest

7

What this shows Tanaka's Innovation Score is 55.7/100 (top 7% of the PatentsView-derived corpus). The chart places that score against the nearest Innovation Score peers plus corpus poles, not a reprint of the volume ranking.

How Tanaka's grant cadence moved

Between 2020–2024, Tanaka Kikinzoku Kogyo K.K. received 88 grants versus 94 in 2015–2019 (-6% equal-window velocity, above median growth). Across complete PatentsView years, output peaked in 2019 at 23 grants and bottomed in 2015 at 7. Lead class C22C accounts for 36.6% of the portfolio across 81 subclasses. Volume neighbours: Barco N.V. (#2,118) and Boehringer Ingelheim Vetmedica GMBH (#2,126).

Tanaka's three-year grant acceleration

From 2019–2021 to 2022–2024, Tanaka Kikinzoku Kogyo K.K. moved from 60 to 51 grants (0.85x the prior three-year total, a multiple, not a CAGR). Among 3,296 tracked assignees with ≥100 grants and ≥20 prior-period grants, that multiple ranks #1,663. See the growth leaderboard.

Barco

186
GE Lighting Solut…

186
International Pap…

186
Ishida

186
The Chamberlain G…

186
University of Hon…

186
Tanaka Kikinzoku… ◀

186
Advanced Energy I…

185
Boehringer Ingelh…

185

What this shows Tanaka holds 186 patents at rank #2,122, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Tanaka

By rank, the assignees closest to #2,122 in granted patent volume.

Leaders in C22C (Alloys)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Tanaka, neither rank-band nor same-CPC leaders (those blocks stay above).

Similar innovation score

Nearest assignees by Innovation Score (56 here).

Trumpf Werkzeugmaschinen GmbH + Co. KG 56 Sumitomo Bakelite Co., Ltd. 56 Architecture Technology Corporation 56 Shanghai Yanfeng Jinqiao Automotive Trim Systems Co. Ltd. 56

Similar claim depth

Nearest assignees by average claims per patent (11.7 here).

Cognitive Scale, Inc. 11.7 avg Dongbu Daewoo Electronics Corporation 11.7 avg National University Corporation Nagoya University 11.7 avg UNIST(ULSAN National Institute OF Science AND TECHNOLOGY) 11.7 avg

Tanaka's Innovation Score vs. every tracked assignee

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

56 Top 7% higher than 93% of 49,997 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

Tanaka Kikinzoku Kogyo K.K. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	7	3.8%
2016	21	11.3%
2017	21	11.3%
2018	22	11.8%
2019	23	12.4%
2020	18	9.7%
2021	19	10.2%
2022	15	8.1%
2023	19	10.2%
2024	17	9.1%
2025partial year	4	2.2%

Which technologies does Tanaka Kikinzoku Kogyo K.K. patent most?

C22C - Alloys 68

C23C - Coating Metallic MATERIAL; Coating Material With Metallic MATERIAL; Surface Treatment OF Metallic Material BY Diffusion Into THE Surface, BY Chemical Conversion OR SUBSTITUTION; Coating BY Vacuum Evaporation, BY Sputtering, BY ION Implantation OR BY Chemical Vapour Deposition, IN General 51

C22F - Changing THE Physical Structure OF Non-ferrous Metals AND Non-ferrous Alloys 38

B22F - Working Metallic POWDER; Manufacture OF Articles From Metallic POWDER; Making Metallic Powder ; Apparatus OR Devices Specially Adapted FOR Metallic Powder 34

H01B - CABLES; CONDUCTORS; INSULATORS; Selection OF Materials FOR Their Conductive, Insulating OR Dielectric Properties 33

H01L - Semiconductor Devices NOT Covered BY Class H10 31

C07F - Acyclic, Carbocyclic OR Heterocyclic Compounds Containing Elements Other Than Carbon, Hydrogen, Halogen, Oxygen, Nitrogen, Sulfur, Selenium OR Tellurium 25

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 22

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 21

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 19

H01J - Electric Discharge Tubes OR Discharge Lamps 18

C09D - Coating Compositions, e.g. Paints, Varnishes OR LACQUERS; Filling PASTES; Chemical Paint OR INK REMOVERS; INKS; Correcting FLUIDS; WOODSTAINS; Pastes OR Solids FOR Colouring OR PRINTING; USE OF Materials Therefor 15

G11B - Information Storage Based ON Relative Movement Between Record Carrier AND Transducer 13

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 12

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 12

Top 15 of 81 technology areas

Where it ranks

Overall rank by patents

#2,122

of 49,997 tracked assignees

Innovation Score

55.7 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

What to do with this data

Tanaka Kikinzoku Kogyo K.K.'s patent record in context - here's where to go next.

Tanaka Kikinzoku Kogyo K.K.'s lead technology class is C22C (Alloys), 36.6% of its portfolio - see every assignee active in that class. Explore C22C
Ranked #2,122 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Tanaka Kikinzoku Kogyo K.K. against Barco N.V., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 55.7/100 blends volume, velocity, technology breadth, and claim depth. How it's calculated

Figures reflect USPTO PatentsView grant data through May 2026; pending applications not yet granted are not counted.

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

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 by PlainPatent, US Patent Intelligence Editorial Process · 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.