Where does Hamamatsu Photonics K.K. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Hamamatsu Photonics K.K. ranks #264 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 Hamamatsu Photonics K.K. hold?

Hamamatsu Photonics K.K. holds 1,615 US utility patents granted between 2015 and 2025, spanning 125 technology areas.

What is Hamamatsu Photonics K.K.'s Innovation Score?

Hamamatsu Photonics K.K. has an Innovation Score of 62.1 out of 100 (top 3% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Hamamatsu Photonics K.K. focus on?

Hamamatsu Photonics K.K.'s top technology area is G02B (Optical Elements, Systems OR Apparatus) with 373 patents, ranking #43 of 4,891 assignees active in that subclass. Grants appear in 125 CPC subclasses total.

Is Hamamatsu Photonics K.K.'s patent grant rate increasing or decreasing?

Hamamatsu Photonics K.K.'s recent grant velocity is +30% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

What does claim depth mean for Hamamatsu Photonics K.K.'s patents?

Hamamatsu Photonics K.K.'s patents average 10.3 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 Hamamatsu Photonics 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

Hamamatsu Photonics K.K.

USPTO PatentsView assignee record - 1,615 granted patents across 125 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: G02B (Optical Elements, Systems OR Apparatus).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Hamamatsu ranks #264 of 49,997 tracked US assignees by granted-patent volume, with 1,615 patents across 125 technology areas.

#264
of 49,997 US assignees by volume: Top 3%
by Innovation Score (62.1/100): 10.3
avg claims per patent: +30%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R264 · Foreign Corporation #264 · 1,615 grants

GRANTS-LARGE · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-STRONG · CLAIMS-PAR · TYPE-FRNCORP · VEL-UP · BOOK-FULL

GRANTS-LARGE 1.6K grants
TOP-DECILE #264/49,997
PHOTO-FINISH Lenovo (BEIJING)
CPC-WIDE G02B · 125 areas
INNOV-STRONG 62.1/100
CLAIMS-PAR 10.3 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-UP +30% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Lenovo (BEIJING) Limited (±3 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 Hamamatsu’s 62.1 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 25.5 pts (41%) Velocity 5.4 pts (9%) Breadth 25.0 pts (40%) Claim depth 6.2 pts (10%)

Qualcomm Incorporated · highest

85
BorgWarner · near

62
Borealis · near

62
Hamamatsu Photonics… · this assignee

62
Rakuten Group · near

62
Shandong University… · near

62
3D Lighting… · lowest

7

What this shows Hamamatsu's Innovation Score is 62.1/100 (top 3% 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 Hamamatsu?

Each dot is one of Hamamatsu’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). Hamamatsu’s own 10.3 claims/patent is at or below the 12.6 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

How Hamamatsu's grant cadence moved

Between 2020–2024, Hamamatsu Photonics K.K. received 832 grants versus 642 in 2015–2019 (+30% equal-window velocity, above median growth). Across complete PatentsView years, output peaked in 2020 at 198 grants and bottomed in 2015 at 118. Lead class G02B accounts for 23.1% of the portfolio across 125 subclasses. Volume neighbours: NGK Insulators, Ltd. (#260) and Henkel AG & Co. KGaA (#268).

Hamamatsu's three-year grant acceleration

From 2019–2021 to 2022–2024, Hamamatsu Photonics K.K. moved from 551 to 448 grants (0.81x 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 #1,795. See the growth leaderboard.

NGK Insulators

1,631
Rambus

1,626
Stryker

1,619
Lenovo (Beijing)

1,618
Hamamatsu Photoni… ◀

1,615
Ecolab USA

1,610
Nitto Denko

1,608
Kohler

1,594
Henkel & Kgaa

1,592

What this shows Hamamatsu holds 1,615 patents at rank #264, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Hamamatsu

By rank, the assignees closest to #264 in granted patent volume.

Leaders in G02B (Optical Elements)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Hamamatsu, neither rank-band nor same-CPC leaders (those blocks stay above). In G02B (Optical Elements), Hamamatsu ranks #43 of 4,891 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (62 here).

Rakuten Group, Inc. 62 Borealis AG 62 Shandong University of Technology 62 BorgWarner Inc. 62

Similar claim depth

Nearest assignees by average claims per patent (10.3 here).

Sakai Display Products Corporation 10.3 avg Shavelogic, Inc. 10.3 avg Hitachi High-tech Corporation 10.3 avg Medline Industries, LP 10.3 avg

Hamamatsu's Innovation Score vs. every tracked assignee

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

62 Top 3% higher than 97% 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

Hamamatsu Photonics K.K. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	118	7.3%
2016	118	7.3%
2017	120	7.4%
2018	119	7.4%
2019	167	10.3%
2020	198	12.3%
2021	186	11.5%
2022	140	8.7%
2023	130	8.0%
2024	178	11.0%
2025partial year	141	8.7%

Which technologies does Hamamatsu Photonics K.K. patent most?

G02B - Optical Elements, Systems OR Apparatus 373

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 339

G01J - Measurement OF Intensity, Velocity, Spectral Content, Polarisation, Phase OR Pulse Characteristics OF Infrared, Visible OR Ultraviolet LIGHT; COLORIMETRY; Radiation Pyrometry 253

H10F - Inorganic Semiconductor Devices Sensitive TO Infrared Radiation, Light, Electromagnetic Radiation OF Shorter Wavelength OR Corpuscular Radiation 237

H01J - Electric Discharge Tubes OR Discharge Lamps 174

H01L - Semiconductor Devices NOT Covered BY Class H10 156

H04N - Pictorial Communication, e.g. Television 144

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 132

G01T - Measurement OF Nuclear OR X-radiation 131

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 115

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 101

A61B - DIAGNOSIS; SURGERY; Identification 84

B81B - Microstructural Devices OR Systems, e.g. Micromechanical Devices 74

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 72

G01B - Measuring Length, Thickness OR Similar Linear DIMENSIONS; Measuring ANGLES; Measuring AREAS; Measuring Irregularities OF Surfaces OR Contours 64

Top 15 of 125 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

Hamamatsu Photonics K.K.'s patent record in context - here's where to go next.

Hamamatsu Photonics K.K.'s lead technology class is G02B (Optical Elements, Systems OR Apparatus), 23.1% of its portfolio - see every assignee active in that class. Explore G02B
Ranked #264 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Hamamatsu Photonics K.K. against NGK Insulators, Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 62.1/100 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.