NHK Spring Patents – Key Insights and Stats

NHK Spring has a total of 8198 patents globally, out of which 5193 have been granted. Of these 8198 patents, more than 47% patents are active. Japan is where NHK Spring has filed the maximum number of patents, followed by the USA and China. Parallelly, Japan seems to be the main focused R&D center and also Japan is the origin country of NHK Spring.

NHK Spring was founded in the year 1936. The Company manufactures springs for automobiles and electronic equipment also products are used for suspension, engine valves, seats, and hard disk drives.

Do read about some of the most popular patents of NHK Spring which have been covered by us in this article and also you can find NHK Spring patents information, the worldwide patent filing activity and its patent filing trend over the years, and many other stats over NHK Spring patent portfolio.

How many patents does the CEO of NHK Spring have?

The CEO Takashi Kayamoto have 101 patents.

How many patents does NHK Spring have?

NHK Spring has a total of 8198 patents globally. These patents belong to 3677 unique patent families. Out of 8198 patents, 3910 patents are active.

How Many Patents did NHK Spring File Every Year?

NHK Spring Patents Filing Trend

Are you wondering why there is a drop in patent filing for the last two years? It is because a patent application can take up to 18 months to get published. Certainly, it doesn’t suggest a decrease in the patent filing.

Year of Patents Filing or GrantNHK Applications FiledNHK Patents Granted
20234109
2022122229
2021261259
2020278289
2019334344
2018329282
2017401274
2016365380
2015406314
2014312350
2013528342
2012507329
2011597264

How many NHK Spring patents are Alive/Dead?

Worldwide Patents

NHK Spring Patents Portfolio

How Many Patents did NHK Spring File in Different Countries?

NHK Spring Worldwide Patents

Countries in which NHK Spring Filed Patents

CountryPatents
Japan3235
United States Of America1122
China838
Europe528
Korea (South)334
Germany331
Taiwan204
India132
Mexico91
Spain79
Singapore61
Brazil52
Canada41
Malaysia40
Hungary37
Philippines36
Indonesia33
Australia32
Italy20
Russia13
Austria11
Viet Nam11
Hong Kong (S.A.R.)8
Poland7
United Kingdom7
France6
Israel3
South Africa3
Turkey3
Thailand2
Macao1
Denmark1
Argentina1

Where are Research Centers of NHK Spring Patents Located?

Research Centers of NHK Spring Patents

10 Best NHK Spring Patents

US7503980B2 is the most popular patent in the NHK Spring portfolio. It has received 344 citations so far from companies like Asm Ip Holding, Applied Materials and Tokyo Electron Limited.

Below is the list of 10 most cited patents of NHK Spring:

Publication NumberCitation Count
US7503980B2344
US7070232B2127
US6866339B2101
US6731472B286
US20080138543A181
US7092215B279
US6963471B276
US6597541B276
US6661618B274
US6628439B271

How many inventions of other companies were rejected due to NHK Spring patents?

The statistics below share strategic R&D insights. It tells the companies that were trying to protect inventions similar to NHK Spring invention. They couldn’t because NHK Spring had protected those before them.

Examiners at the USPTO referred 364 NHK Spring patents in 1190 rejections (35 USC § 102 or 35 USC § 103 types).

The top citing companies in the NHK Spring patent portfolio are Toyota, Nitto Denko and Hutchinson Technology.

List of the Companies whose Patents were rejected citing NHK Spring –

CompanyNumber of Patent Applications that faced Rejection Citing NHK PatentsNumber of Rejections (102 & 103)
Toyota2741
Nitto Denko1940
Hutchinson Technology1433
Ford1419
Ts Tech Co Ltd1420
Applied Materials1025
Gm Global Technology Operations Llc1017
Lear Corporation911
Tachi-S Co Ltd812
Tokyo Electron Limited819

Count of 102 and 103 Type Rejections based on NHK Spring Patents

Top NHK Spring Patents used in Rejecting Most Patent Applications

Patent NumberCount of Rejected Applications
US7241346B212
US20130072075A17
US7092215B27
US7137665B27
US7057403B26
US20100037976A15
US7017997B25
US7503980B25
US7898272B25
US8199442B25
US20060159982A15
US8393682B25
US20150069128A14
US8094416B24
US8007381B24

What Percentage of NHK Spring US Patent Applications were Granted?

NHK Spring (Excluding its subsidiaries) has filed 1193 patent applications at USPTO so far (Excluding Design and PCT applications). Out of these 967 have been granted leading to a grant rate of 87.3%.

Below are the key stats of NHK Spring patent prosecution at the USPTO.

Which Law Firms Filed Most US Patents for NHK Spring?

Law FirmTotal ApplicationsSuccess Rate
Holtz Holtz & Volek26488.62%
C Bruce Hamburg14395.56%
Locke Lord Llp13871.43%
Oliff Plc10583.81%
Knobbe Martens Olson & Bear7698.61%
Macpherson Kwok Chen & Heid31100.00%
Hauptman Ham Llp2875.00%
Haynes And Boone2680.77%
Cantor Colburn Llp1975.00%
Dority & Manning19100.00%

What are NHK Spring key innovation segments?

What Technologies are Covered by NHK Spring?

The chart below distributes patents filed by NHK Spring in different countries on the basis of the technology protected in patents. It also represents the markets where NHK Spring thinks it’s important to protect particular technology inventions.

R&D Focus: How has NHK Spring search focus changed over the years?

EXCLUSIVE INSIGHTS COMING SOON!

Interested in knowing about the areas of innovation that are being protected by NHK Spring?

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Our comprehensive report provides an in-depth look into the patent portfolio. The report includes a breakdown of the patent portfolio across various technologies, listing the patent along with brief summaries of each patent's technology.