Where does National University Corporation Saitama University rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), National University Corporation Saitama University ranks #8,881 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

What is National University Corporation Saitama University's Innovation Score?

National University Corporation Saitama University has an Innovation Score of 47.6 out of 100 (top 18% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is National University Corporation Saitama University's patent grant rate increasing or decreasing?

National University Corporation Saitama University's recent grant velocity is -30% 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 National University Corporation Saitama University's patents?

National University Corporation Saitama University's patents average 9.5 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

National University Corporation Saitama University

Q: How many patents does National University Corporation Saitama University hold?

National University Corporation Saitama University holds 36 US utility patents granted between 2015 and 2025, spanning 54 technology areas.

Q: What technology areas does National University Corporation Saitama University focus on?

National University Corporation Saitama University's top technology area is H01F (MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties) with 6 patents, ranking #276 of 1,360 assignees active in that subclass. Grants appear in 54 CPC subclasses total.

Q: How is the National University Corporation Saitama University 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 PatentsView assignee record - 36 granted patents across 54 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: H01F (MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, National ranks #8,881 of 49,997 tracked US assignees by granted-patent volume, with 36 patents across 54 technology areas.

#8,881
of 49,997 US assignees by volume: Top 18%
by Innovation Score (47.6/100): 9.5
avg claims per patent: -30%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R8881 · Foreign Corporation #8,881 · 36 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-WIDE · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-DOWN · BOOK-FULL

GRANTS-SMALL 36 grants
UPPER-Q #8,881/49,997
PHOTO-FINISH Multimatic
CPC-WIDE H01F · 54 areas
INNOV-PAR 47.6/100
CLAIMS-PAR 9.5 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -30% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Multimatic Inc. (±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.

How National’s 47.6 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Volume 12.5 pts (26%) Velocity 4.4 pts (9%) Breadth 25.0 pts (53%) Claim depth 5.7 pts (12%)

Qualcomm Incorporated · highest

85
Clexio Biosciences · near

48
Magnecomp · near

48
National University… · this assignee

48
Otsuka Chemical · near

48
Werner · near

48
3D Lighting… · lowest

7

What this shows National's Innovation Score is 47.6/100 (top 18% 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.

Does more volume mean deeper claims for National?

Each dot is one of National’s 8 nearest volume peers (same corpus rank neighbourhood as the chart above), placed by total granted patents (horizontal) against average claims per patent (vertical). National’s own 9.5 claims/patent is at or below the 12.7 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

National vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

How National's grant cadence moved

Between 2020–2024, National University Corporation Saitama University received 14 grants versus 20 in 2015–2019 (-30% equal-window velocity, below median growth). Across complete PatentsView years, output peaked in 2019 at 6 grants and bottomed in 2023 at 1. Lead class H01F accounts for 16.7% of the portfolio across 54 subclasses. Volume neighbours: Multimatic Inc. (#8,878) and Oledworks GMBH (#8,886).

National's three-year grant acceleration

National University Corporation Saitama University shows 8 grants in 2022–2024 against only 12 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.

Multimatic

36
Nagaki Seiki

36
Nexter Systems

36
Nidec Servo

36
Neocific

36
Nile Global

36
Nordex Energy

36
Oledworks

36
National Universi… ◀

36

What this shows National holds 36 patents at rank #8,882, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near National

By rank, the assignees closest to #8,882 in granted patent volume.

Leaders in H01F (Magnets)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for National, neither rank-band nor same-CPC leaders (those blocks stay above). In H01F (Magnets), National ranks #276 of 1,360 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (48 here).

Clexio Biosciences Ltd. 48 Otsuka Chemical Co., Ltd. 48 Magnecomp Corporation 48 Werner Co. 48

National's Innovation Score vs. every tracked assignee

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

48 Top 18% higher than 82% 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

National University Corporation Saitama University patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	4	11.1%
2016	4	11.1%
2017	3	8.3%
2018	3	8.3%
2019	6	16.7%
2020	4	11.1%
2021	2	5.6%
2022	4	11.1%
2023	1	2.8%
2024	3	8.3%
2025partial year	2	5.6%

Which technologies does National University Corporation Saitama University patent most?

H01F - MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties 6

B23K - Soldering OR UNSOLDERING; WELDING; Cladding OR Plating BY Soldering OR WELDING; Cutting BY Applying Heat Locally, e.g. Flame CUTTING; Working BY Laser Beam 6

H02M - Apparatus FOR Conversion Between AC AND AC, Between AC AND DC, OR Between DC AND DC, AND FOR USE With Mains OR Similar Power Supply SYSTEMS; Conversion OF DC OR AC Input Power Into Surge Output POWER; Control OR Regulation Thereof 5

Y02T - Climate Change Mitigation Technologies Related TO Transportation 5

B60L - Propulsion OF Electrically-propelled Vehicles ; Supplying Electric Power FOR Auxiliary Equipment OF Electrically-propelled Vehicles ; Electrodynamic Brake Systems FOR Vehicles IN General ; Magnetic Suspension OR Levitation FOR VEHICLES; Monitoring Operating Variables OF Electrically-propelled Vehicl 5

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 5

H01L - Semiconductor Devices NOT Covered BY Class H10 5

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 5

C30B - Single-crystal Growth ; Unidirectional Solidification OF Eutectic Material OR Unidirectional Demixing OF Eutectoid MATERIAL; Refining BY Zone-melting OF Material ; Production OF A Homogeneous Polycrystalline Material With Defined Structure ; Single Crystals OR Homogeneous Polycrystalline Material WI 4

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 3

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 3

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 3

C07C - Acyclic OR Carbocyclic Compounds 3

Y04S - Systems Integrating Technologies Related TO Power Network Operation, Communication OR Information Technologies FOR Improving THE Electrical Power Generation, Transmission, Distribution, Management OR Usage, i.e. Smart Grids 3

C01B - Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c 3

Top 15 of 54 technology areas

More on this record

Data Source

USPTO PatentsView, US granted patents 2015–2025

View all rankings → How is Innovation Score calculated?

What to do with this data

National University Corporation Saitama University's patent record in context - here's where to go next.

National University Corporation Saitama University's lead technology class is H01F (MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties), 16.7% of its portfolio - see every assignee active in that class. Explore H01F
Ranked #8,881 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare National University Corporation Saitama University against Multimatic Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 47.6/100 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.