Where does Hitachi Automotive Systems Steering, Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Hitachi Automotive Systems Steering, Ltd. ranks #8,603 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 Hitachi Automotive Systems Steering, Ltd. hold?

Hitachi Automotive Systems Steering, Ltd. holds 37 US utility patents granted between 2015 and 2018, spanning 21 technology areas.

What is Hitachi Automotive Systems Steering, Ltd.'s Innovation Score?

Hitachi Automotive Systems Steering, Ltd. has an Innovation Score of 38.7 out of 100 (top 40% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Hitachi Automotive Systems Steering, Ltd. focus on?

Hitachi Automotive Systems Steering, Ltd.'s top technology area is B62D (Motor VEHICLES; Trailers) with 32 patents, ranking #106 of 1,368 assignees active in that subclass. Grants appear in 21 CPC subclasses total.

Is Hitachi Automotive Systems Steering, Ltd.'s patent grant rate increasing or decreasing?

Hitachi Automotive Systems Steering, Ltd.'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 Hitachi Automotive Systems Steering, Ltd.'s patents?

Hitachi Automotive Systems Steering, Ltd.'s patents average 16.5 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.

How is the Hitachi Automotive Systems Steering, 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Hitachi Automotive Systems Steering, Ltd.

USPTO PatentsView assignee record - 37 granted patents across 21 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: B62D (Motor VEHICLES; Trailers).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Hitachi ranks #8,603 of 49,997 tracked US assignees by granted-patent volume, with 37 patents across 21 technology areas.

#8,603
of 49,997 US assignees by volume: Top 40%
by Innovation Score (38.7/100): 16.5
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R8603 · Foreign Corporation #8,603 · 37 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-SMALL 37 grants
UPPER-Q #8,603/49,997
PHOTO-FINISH Haesung DS
CPC-FOCUS B62D · 21 areas
INNOV-THIN 38.7/100
CLAIMS-RICH 16.5 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Haesung DS Co., Ltd (±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 Hitachi’s 38.7 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 12.6 pts (33%) Velocity 0.0 pts (0%) Breadth 16.2 pts (42%) Claim depth 9.9 pts (26%)

Qualcomm Incorporated · highest

85
Claret Medical · near

39
Hitachi Automotive… · this assignee

39
Marcon International · near

39
Xandr · near

39
Bio-medical… · near

39
3D Lighting… · lowest

7

What this shows Hitachi's Innovation Score is 38.7/100 (top 40% 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 Hitachi?

Each dot is one of Hitachi’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). Hitachi’s own 16.5 claims/patent is ABOVE the 14.4 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Hitachi's grants concentrate

Hitachi Automotive Systems Steering, Ltd. is a focused PatentsView assignee: 21 CPC subclasses with 86.5% of grants classified under B62D (Motor VEHICLES; Trailers). Peak complete grant year is 2015 (13 grants) versus a trough of 6 in 2018. By volume, Hitachi sits between Haesung DS Co., Ltd and House of Atlas, LLC.

Haesung DS

37
Hanwha

37
Healthy IO

37
Hercules

37
Hsni

37
Hartmetall-werkze…

37
Hatch

37
House of Atlas

37
Hitachi Automotiv… ◀

37

What this shows Hitachi holds 37 patents at rank #8,601, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Hitachi

By rank, the assignees closest to #8,601 in granted patent volume.

Leaders in B62D (Motor Vehicles)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Hitachi, neither rank-band nor same-CPC leaders (those blocks stay above). In B62D (Motor Vehicles), Hitachi ranks #106 of 1,368 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (39 here).

Xandr Inc. 39 Claret Medical, Inc. 39 Marcon International, Inc. 39 Bio-medical Engineering (HK) Limited 39

Hitachi's Innovation Score vs. every tracked assignee

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

39 Top 40% higher than 60% 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

Hitachi Automotive Systems Steering, Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	13	35.1%
2016	11	29.7%
2017	7	18.9%
2018	6	16.2%

Which technologies does Hitachi Automotive Systems Steering, Ltd. patent most?

B62D - Motor VEHICLES; Trailers 32

F16H - Gearing 6

G01L - Measuring Force, Stress, Torque, Work, Mechanical Power, Mechanical Efficiency, OR Fluid Pressure 6

Y10T - Technical Subjects Covered BY Former US Classification 6

F04C - Rotary-piston, OR Oscillating-piston, Positive-displacement Machines FOR Liquids ; Rotary-piston, OR Oscillating-piston, Positive-displacement Pumps 5

F01C - Rotary-piston OR Oscillating-piston Machines OR Engines 3

H02P - Control OR Regulation OF Electric Motors, Electric Generators OR Dynamo-electric CONVERTERS; Controlling Transformers, Reactors OR Choke Coils 2

G01D - Measuring NOT Specially Adapted FOR A Specific VARIABLE; Arrangements FOR Measuring TWO OR More Variables NOT Covered IN A Single Other SUBCLASS; Tariff Metering APPARATUS; Measuring OR Testing NOT Otherwise Provided FOR 2

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

C10M - Lubricating Compositions ; USE OF Chemical Substances Either Alone OR AS Lubricating Ingredients IN A Lubricating Composition 1

C10N - Indexing Scheme Associated With Subclass C10m Relating TO Lubricating Compositions 1

F02M - Supplying Combustion Engines IN General With Combustible Mixtures OR Constituents Thereof 1

F17D - Pipe-line SYSTEMS; Pipe-lines 1

H02K - Dynamo-electric Machines 1

F16C - SHAFTS; Flexible SHAFTS; Elements OR Crankshaft MECHANISMS; Rotary Bodies Other Than Gearing ELEMENTS; Bearings 1

Top 15 of 21 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

Hitachi Automotive Systems Steering, Ltd.'s patent record in context - here's where to go next.

Hitachi Automotive Systems Steering, Ltd.'s lead technology class is B62D (Motor VEHICLES; Trailers), 86.5% of its portfolio - see every assignee active in that class. Explore B62D
Ranked #8,603 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Hitachi Automotive Systems Steering, Ltd. against Haesung DS Co., Ltd, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 38.7/100 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.