Where does Namiki Seimitsu Houseki Kabushiki Kaisha rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Namiki Seimitsu Houseki Kabushiki Kaisha ranks #14,153 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 Namiki Seimitsu Houseki Kabushiki Kaisha hold?

Namiki Seimitsu Houseki Kabushiki Kaisha holds 21 US utility patents granted between 2015 and 2018, spanning 24 technology areas.

What is Namiki Seimitsu Houseki Kabushiki Kaisha's Innovation Score?

Namiki Seimitsu Houseki Kabushiki Kaisha has an Innovation Score of 33.6 out of 100 (45th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Namiki Seimitsu Houseki Kabushiki Kaisha focus on?

Namiki Seimitsu Houseki Kabushiki Kaisha's top technology area is A61B (DIAGNOSIS; SURGERY; Identification) with 6 patents, ranking #2,680 of 7,127 assignees active in that subclass. Grants appear in 24 CPC subclasses total.

Is Namiki Seimitsu Houseki Kabushiki Kaisha's patent grant rate increasing or decreasing?

Namiki Seimitsu Houseki Kabushiki Kaisha's recent grant velocity is -100% 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 Namiki Seimitsu Houseki Kabushiki Kaisha's patents?

Namiki Seimitsu Houseki Kabushiki Kaisha's patents average 9.4 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

Namiki Seimitsu Houseki Kabushiki Kaisha

Q: How is the Namiki Seimitsu Houseki Kabushiki Kaisha 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 - 21 granted patents across 24 technology areas, recorded in grant years 2015–2018. 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: A61B (DIAGNOSIS; SURGERY; Identification).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Namiki ranks #14,153 of 49,997 tracked US assignees by granted-patent volume, with 21 patents across 24 technology areas.

#14,153
of 49,997 US assignees by volume: 45th percentile
by Innovation Score (33.6/100): 9.4
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R14153 · Foreign Corporation #14,153 · 21 grants

GRANTS-SMALL · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-PAR · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-SMALL 21 grants
MID-PACK #14,153/49,997
PHOTO-FINISH Neptun Light
CPC-FOCUS A61B · 24 areas
INNOV-THIN 33.6/100
CLAIMS-PAR 9.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Neptun Light, 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 Namiki’s 33.6 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 10.7 pts (32%) Velocity 0.0 pts (0%) Breadth 17.3 pts (51%) Claim depth 5.6 pts (17%)

Qualcomm Incorporated · highest

85
Namiki Seimitsu… · this assignee

34
3D Lighting… · lowest

7

What this shows Namiki's Innovation Score is 33.6/100 (45th percentile 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 Namiki?

Each dot is one of Namiki’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). Namiki’s own 9.4 claims/patent is ABOVE the 8.0 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Namiki's grants concentrate

Namiki Seimitsu Houseki Kabushiki Kaisha is a focused PatentsView assignee: 24 CPC subclasses with 28.6% of grants classified under A61B (DIAGNOSIS; SURGERY; Identification). Peak complete grant year is 2015 (7 grants) versus a trough of 1 in 2018. By volume, Namiki sits between Novembal USA Inc and Ningbo Worth International Trade Co., Ltd..

Novembal USA

21
Novozymes Biologi…

21
NPS Public Furnit…

21
Nubilus B V

21
Neptun Light

21
Netflow UAB

21
Neuroblade

21
Ningbo Worth Inte…

21
Namiki Seimitsu H… ◀

21

What this shows Namiki holds 21 patents at rank #14,169, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Namiki

By rank, the assignees closest to #14,169 in granted patent volume.

Leaders in A61B (Diagnosis)

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

Namiki's Innovation Score vs. every tracked assignee

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

34 45th percentile higher than 45% 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 · 2015–2018

Grants by year

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

View data table

Namiki Seimitsu Houseki Kabushiki Kaisha patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	7	33.3%
2016	6	28.6%
2017	7	33.3%
2018	1	4.8%

Which technologies does Namiki Seimitsu Houseki Kabushiki Kaisha patent most?

A61B - DIAGNOSIS; SURGERY; Identification 6

G02B - Optical Elements, Systems OR Apparatus 4

F04B - Positive-displacement Machines FOR LIQUIDS; Pumps 3

A61M - Devices FOR Introducing Media Into, OR Onto, THE Body ; Devices FOR Transducing Body Media OR FOR Taking Media From THE Body ; Devices FOR Producing OR Ending Sleep OR Stupor 3

H01L - Semiconductor Devices NOT Covered BY Class H10 3

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 3

Y10T - Technical Subjects Covered BY Former US Classification 3

F16D - Couplings FOR Transmitting ROTATION; CLUTCHES; Brakes 2

H10H - Inorganic Light-emitting Semiconductor Devices Having Potential Barriers 2

G01B - Measuring Length, Thickness OR Similar Linear DIMENSIONS; Measuring ANGLES; Measuring AREAS; Measuring Irregularities OF Surfaces OR Contours 2

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 2

F16C - SHAFTS; Flexible SHAFTS; Elements OR Crankshaft MECHANISMS; Rotary Bodies Other Than Gearing ELEMENTS; Bearings 2

H04R - Loudspeakers, Microphones, Gramophone Pick-ups OR Like Acoustic Electromechanical TRANSDUCERS; Deaf-aid SETS; Public Address Systems 2

B06B - Methods OR Apparatus FOR Generating OR Transmitting Mechanical Vibrations OF Infrasonic, Sonic, OR Ultrasonic Frequency, ; e.g.; FOR Performing Mechanical Work IN General 2

F16L - PIPES; Joints OR Fittings FOR PIPES; Supports FOR Pipes, Cables OR Protective TUBING; Means FOR Thermal Insulation IN General 1

Top 15 of 24 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

Namiki Seimitsu Houseki Kabushiki Kaisha's patent record in context - here's where to go next.

Namiki Seimitsu Houseki Kabushiki Kaisha's lead technology class is A61B (DIAGNOSIS; SURGERY; Identification), 28.6% of its portfolio - see every assignee active in that class. Explore A61B
Ranked #14,153 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Namiki Seimitsu Houseki Kabushiki Kaisha against Novembal USA Inc, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 33.6/100 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.