PlainPatent
USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Hayashi Kogyosyo Co., Ltd.

USPTO PatentsView assignee record - 7 granted patents across 3 technology areas, recorded in grant years 2019–2024. 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: H02K (Dynamo-electric Machines).

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The verdict

According to USPTO PatentsView, Hayashi ranks #35,654 of 49,997 tracked US assignees by granted-patent volume, with 7 patents across 3 technology areas.

#35,654
of 49,997 US assignees by volume
17th percentile
by Innovation Score (25.3/100)
11.7
avg claims per patent
+500%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R35654 · Foreign Corporation #35,654 · 7 grants

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

  • GRANTS-MICRO 7 grants
  • MID-PACK #35,654/49,997
  • PHOTO-FINISH Harmotec
  • CPC-NARROW H02K · 3 areas
  • INNOV-THIN 25.3/100
  • CLAIMS-PAR 11.7 claims/avg
  • TYPE-FRNCORP Foreign Corp
  • VEL-SURGE +500% vel
  • BOOK-FULL 10/10 fields

Nearest grant-volume peer: Harmotec 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 Hayashi’s 25.3 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Innovation-score neighbourhood around Hayashi

Lowest and highest poles plus nearest Innovation Score peers, not a full corpus board reprint.

score

What this shows Hayashi's Innovation Score is 25.3/100 (17th 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.

Source USPTO PatentsView, PlainPatent Innovation Score As of 2015–2025

Does more volume mean deeper claims for Hayashi?

Each dot is one of Hayashi’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). Hayashi’s own 11.7 claims/patent is ABOVE the 11.1 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

Hayashi vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView. 2×2 strategic matrix plotting 9 entities by Granted patents (volume) (X) and Avg claims / patent (Y), with a crosshair dividing the plot into four quadrants. Volume + depthSelective & thoroughVolume over depthLean filer 6.97.07.077.07.07.1 5101520 Granted patents (volume) Avg claims / patent Harmotec Co., Ltd. - 7, 7.71HarmotecHarumoto Technology (SHEN ZHEN) Co., Ltd. - 7, 8Harumoto Technolo…Hashplay Inc. - 7, 17.86HashplayHavana Savannah, LLC - 7, 10.43Havana SavannahHBL Corporation - 7, 11.14HBLHCC, Inc. - 7, 11.86HCCHedeen International, LLC - 7, 15.14Hedeen Internatio…Hefei General Machinery Research Institute Co., Ltd. - 7, 11.14Hefei General Mac…Hayashi Kogyosyo Co., Ltd. - 7, 11.71Hayashi Kogyosyo
Hayashi vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where Hayashi's grants concentrate

Hayashi Kogyosyo Co., Ltd. is a focused PatentsView assignee: 3 CPC subclasses with 100% of grants classified under H02K (Dynamo-electric Machines). Peak complete grant year is 2021 (2 grants) versus a trough of 1 in 2019. By volume, Hayashi sits between Harmotec Co., Ltd. and Hefei General Machinery Research Institute Co., Ltd..

Hayashi's three-year grant acceleration

Hayashi Kogyosyo Co., Ltd. shows 3 grants in 2022–2024 against only 4 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.

Who files at Hayashi's volume?

Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀

patents

What this shows Hayashi holds 7 patents at rank #35,621, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Source USPTO PatentsView, granted utility patents As of 2015–2025

Companies ranked near Hayashi

By rank, the assignees closest to #35,621 in granted patent volume.

Leaders in H02K (Dynamo-electric Machines)

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

Hayashi's Innovation Score vs. every tracked assignee

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

25 17th percentile higher than 17% of 49,997 US assignees

This assignee 0 100 every tracked assignee, bucketed by value

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

0.511.522.5 20192020202120222024 2
USPTO utility patent grants by year · 2019–2024

Grants by year

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

View data table
Hayashi Kogyosyo Co., Ltd. patent grants by year, 2015–2025
Year Patents Granted Share of Period
2019 1 14.3%
2020 1 14.3%
2021 2 28.6%
2022 1 14.3%
2024 2 28.6%

Which technologies does Hayashi Kogyosyo Co., Ltd. patent most?

Top 3 of 3 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

Hayashi Kogyosyo Co., Ltd.'s patent record in context - here's where to go next.

  • Hayashi Kogyosyo Co., Ltd.'s lead technology class is H02K (Dynamo-electric Machines), 100% of its portfolio - see every assignee active in that class. Explore H02K
  • Ranked #35,654 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
  • Compare Hayashi Kogyosyo Co., Ltd. against Harmotec Co., Ltd., an assignee filing at a similar volume. Compare portfolios
  • Innovation Score of 25.3/100 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

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.