Where does Hitachi Powdered Metals Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Hitachi Powdered Metals Co., Ltd. ranks #22,713 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 Powdered Metals Co., Ltd. hold?

Hitachi Powdered Metals Co., Ltd. holds 12 US utility patents granted between 2015 and 2018, spanning 14 technology areas.

What is Hitachi Powdered Metals Co., Ltd.'s Innovation Score?

Hitachi Powdered Metals Co., Ltd. has an Innovation Score of 27.6 out of 100 (24th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Hitachi Powdered Metals Co., Ltd.'s patent grant rate increasing or decreasing?

Hitachi Powdered Metals Co., 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 Powdered Metals Co., Ltd.'s patents?

Hitachi Powdered Metals Co., Ltd.'s patents average 9.3 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 Hitachi Powdered Metals Co., 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 Powdered Metals Co., Ltd.

Q: What technology areas does Hitachi Powdered Metals Co., Ltd. focus on?

Hitachi Powdered Metals Co., Ltd.'s top technology area is B22F (Working Metallic POWDER; Manufacture OF Articles From Metallic POWDER; Making Metallic Powder ; Apparatus OR Devices Specially Adapted FOR Metallic Powder) with 9 patents, ranking #149 of 926 assignees active in that subclass. Grants appear in 14 CPC subclasses total.

USPTO PatentsView assignee record - 12 granted patents across 14 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: B22F (Working Metallic POWDER; Manufacture OF Articles From Metallic POWDER; Making Metallic Powder ; Apparatus OR Devices Specially Adapted FOR Metallic Powder).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Hitachi ranks #22,713 of 49,997 tracked US assignees by granted-patent volume, with 12 patents across 14 technology areas.

#22,713
of 49,997 US assignees by volume: 24th percentile
by Innovation Score (27.6/100): 9.3
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R22713 · Foreign Corporation #22,713 · 12 grants

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

GRANTS-MICRO 12 grants
MID-PACK #22,713/49,997
PHOTO-FINISH Heine Optotechnik & KG
CPC-FOCUS B22F · 14 areas
INNOV-THIN 27.6/100
CLAIMS-PAR 9.3 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Heine Optotechnik GmbH & Co. KG (±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 27.6 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 8.9 pts (32%) Velocity 0.0 pts (0%) Breadth 13.2 pts (48%) Claim depth 5.6 pts (20%)

Qualcomm Incorporated · highest

85
Hitachi Powdered… · this assignee

28
3D Lighting… · lowest

7

What this shows Hitachi's Innovation Score is 27.6/100 (24th 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 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 9.3 claims/patent is at or below the 9.3 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Hitachi's grants concentrate

Hitachi Powdered Metals Co., Ltd. is a focused PatentsView assignee: 14 CPC subclasses with 75% of grants classified under B22F (Working Metallic POWDER; Manufacture OF Articles From Metallic POWDER; Making Metallic Powder ; Apparatus OR Devices Specially Adapted FOR Metallic Powder). Peak complete grant year is 2016 (5 grants) versus a trough of 1 in 2018. By volume, Hitachi sits between Heine Optotechnik GmbH & Co. KG and Hokuyo Automatic Co., Ltd..

Heine Optotechnik…

12
Hermes Sellier

12
High Street TV (G…

12
Highland Fluid Te…

12
HK INNO N

12
Hoden Seimitsi Ka…

12
Hoerbiger Automat…

12
Hokuyo Automatic

12
Hitachi Powdered… ◀

12

What this shows Hitachi holds 12 patents at rank #22,695, 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 #22,695 in granted patent volume.

Leaders in B22F (Working Metallic Powder)

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

Hitachi's Innovation Score vs. every tracked assignee

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

28 24th percentile higher than 24% 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 Powdered Metals Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	3	25.0%
2016	5	41.7%
2017	3	25.0%
2018	1	8.3%

Which technologies does Hitachi Powdered Metals Co., Ltd. patent most?

B22F - Working Metallic POWDER; Manufacture OF Articles From Metallic POWDER; Making Metallic Powder ; Apparatus OR Devices Specially Adapted FOR Metallic Powder 9

C22C - Alloys 7

B30B - Presses IN General 2

Y10T - Technical Subjects Covered BY Former US Classification 2

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

C21D - Modifying THE Physical Structure OF Ferrous METALS; General Devices FOR Heat Treatment OF Ferrous OR Non-ferrous Metals OR ALLOYS; Making Metal Malleable, e.g. BY Decarburisation OR Tempering 1

B21K - Making Forged OR Pressed Metal Products, e.g. Horse-shoes, Rivets, Bolts OR Wheels 1

B21J - FORGING; HAMMERING; Pressing METAL; RIVETING; Forge Furnaces 1

F01L - Cyclically Operating Valves FOR Machines OR Engines 1

C03C - Chemical Composition OF Glasses, Glazes OR Vitreous ENAMELS; Surface Treatment OF GLASS; Surface Treatment OF Fibres OR Filaments Made From Glass, Minerals OR SLAGS; Joining Glass TO Glass OR Other Materials 1

H01L - Semiconductor Devices NOT Covered BY Class H10 1

H01J - Electric Discharge Tubes OR Discharge Lamps 1

H01F - MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties 1

H10N - Electric Solid-state Devices NOT Otherwise Provided FOR 1

Top 14 of 14 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 Powdered Metals Co., Ltd.'s patent record in context - here's where to go next.

Hitachi Powdered Metals Co., Ltd.'s lead technology class is B22F (Working Metallic POWDER; Manufacture OF Articles From Metallic POWDER; Making Metallic Powder ; Apparatus OR Devices Specially Adapted FOR Metallic Powder), 75% of its portfolio - see every assignee active in that class. Explore B22F
Ranked #22,713 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Hitachi Powdered Metals Co., Ltd. against Heine Optotechnik GmbH & Co. KG, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 27.6/100 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.