Overall rank by patents
#2,439
Across all tracked assignees
USPTO 2015–2025 USPTO PatentsView Foreign Corporation
Hitachi Koki Co., Ltd.
USPTO PatentsView assignee record — 160 granted patents across 55 technology areas, active 2015–2021. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: B25F (COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR).
160
Total patents granted
55
CPC technology areas
9.1
Avg claims per patent
-99%
5-year filing velocity
Portfolio overview
Hitachi Koki Co., Ltd. has been granted 160 US utility patents between 2015 and 2021, placing Hitachi Koki Co., Ltd. at rank #2,439 across all assignees tracked by PlainPatent. This portfolio spans 55 distinct Cooperative Patent Classification (CPC) subclasses, averaging 9.1 claims per patent with primary concentration in B25F (COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR). As a Foreign Corporation, Hitachi Koki Co., Ltd. is one of the broader-portfolio assignees in the PatentsView dataset. The composite Innovation Score of 48.0/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.
Filing cadence tells the strategic story. Between 2020 and 2025 the company received 1 grants, compared with 159 in the 2015–2019 window — a -99% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.
Claim depth and technology breadth together indicate competitive posture. Hitachi Koki Co., Ltd.'s 9.1 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 55 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Hitachi Koki Co., Ltd. against peers pursuing similar technology classes.
How does Hitachi compare?
Granted US patents 2015–2025 versus the largest corporate holders — this company marked ◀
- Samsung
SAMSUNG ELECTRONICS CO., LTD.
106,890 patents
- International Bus…
International Business Machines Corporation
72,926 patents
- Canon 34,378
Canon Kabushiki Kaisha
34,378 patents
- LG 32,607
LG ELECTRONICS INC.
32,607 patents
- Taiwan Semiconduc… 31,041
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
31,041 patents
- Apple 30,560
Apple Inc.
30,560 patents
- Qualcomm Incorpor… 30,354
QUALCOMM Incorporated
30,354 patents
- Intel 27,498
Intel Corporation
27,498 patents
- Hitachi Koki ◀ 160
Hitachi Koki Co., Ltd.
160 patents
What this shows Hitachi holds 160 patents — placing it at rank #2,439 overall, well behind the volume leaders but ahead of the tens of thousands of smaller assignees in the dataset.
USPTO utility patent grants by year · 2015–2021
Grants by year
Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.
View data table
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2015 | 43 | 26.9% |
| 2016 | 43 | 26.9% |
| 2017 | 40 | 25.0% |
| 2018 | 28 | 17.5% |
| 2019 | 5 | 3.1% |
| 2021 | 1 | 0.6% |
Which technologies does Hitachi Koki Co., Ltd. patent most?
Top 15 of 55 technology areas
Patent Moat Analysis
Portfolio Volume Moderate
Tech Breadth Multi-domain
Claim Depth Simple
Velocity Declining
Frequently Asked Questions
How many patents does Hitachi Koki Co., Ltd. hold?
Hitachi Koki Co., Ltd. holds 160 US granted patents filed between 2015 and 2021, spanning 55 technology areas.
What is Hitachi Koki Co., Ltd.'s Innovation Score?
Hitachi Koki Co., Ltd. has an Innovation Score of 48.0 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does Hitachi Koki Co., Ltd. focus on?
Hitachi Koki Co., Ltd.'s top technology area is B25F (COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR) with 41 patents. The company has filed patents in 55 CPC subclasses total.
Is Hitachi Koki Co., Ltd.'s patent filing rate increasing or decreasing?
Hitachi Koki Co., Ltd.'s recent filing velocity is -99% compared to the prior five-year period. Filing activity has slowed relative to earlier years.
What does claim depth mean for Hitachi Koki Co., Ltd.'s patents?
Hitachi Koki Co., Ltd.'s patents average 9.1 claims each. This is relatively simple claim structure, typical for focused inventions.
How is the Hitachi Koki 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.
Learn More
Explore the patent dataset
B25F technology
Hitachi Koki Co., Ltd.'s primary CPC class — all holders and yearly trends
Top 50 patent holders
See where Hitachi Koki Co., Ltd. ranks among the largest US patent assignees
All technology classes
Browse every CPC technology area by patent activity
How the score works
The four dimensions behind the Innovation Score
Related
Data sourced from USPTO PatentsView — official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial
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.
All federal data sources used on this page
- USPTO PatentsView — official U.S. Patent and Trademark Office bulk patent data. patentsview.org
- USPTO Patent Application Information Retrieval (PAIR) — application status and file history. uspto.gov/patents/pair
- USPTO Bulk Data Storage System — comprehensive patent text + claims dataset. bulkdata.uspto.gov
- USPTO CPC Classification — Cooperative Patent Classification scheme for technology categorization. uspto.gov/cpc
- SEC EDGAR — public filings cross-reference for assignee corporate entity matching. sec.gov/edgar
- WIPO PATENTSCOPE — international patent context (related international filings). wipo.int/patentscope
