KDDI Patents – Key Insights and Stats

KDDI has a total of 11123 patents globally, out of which 7195 have been granted. Of these 11123 patents, more than 49% patents are active. Japan is where KDDI has filed the maximum number of patents, followed by the United States of America and Europe. Parallelly, Japan seems to be the main focused R&D centre and also is the origin country of KDDI.

KDDI was founded in the year 1984. KDDI sells mobile handsets and offers mobile communication services. The company also offers broadband services as well. As of December 2022, market cap of KDDI is $63.09 Billion.

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

How many patents does the founder of KDDI have?

The founder Kazuo Inamori has 44 patents.

How many patents does KDDI have?

KDDI has a total of 11123 patents globally. These patents belong to 9207 unique patent families. Out of 11123 patents, 5517 patents are active.

How Many Patents did KDDI File Every Year?

KDDI 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 GrantKDDI Applications FiledKDDI Patents Granted
2022113568
2021459553
2020567419
2019550571
2018576439
2017608504
2016547382
2015520375
2014765443
2013650528
2012543533
2011557489

How many KDDI patents are Alive/Dead?

KDDI Patents Portfolio

How Many Patents did KDDI File in Different Countries?

KDDI Worldwide Patents

Countries in which KDDI Filed Patents

CountryPatents
Japan9231
United States Of America725
Europe265
China177
Germany106
Korea (South)53
India21
Taiwan18
Singapore14
France14
Australia12
United Kingdom12
Canada9
Hong Kong (S.A.R.)6
Brazil4
Israel1
Sweden1

Where are the Research Centres of KDDI Patents Located?

Research Centres of KDDI Patents

10 Best KDDI Patents

US8281397B2 is the most popular patent in the KDDI portfolio. It has received 98 citations so far from companies like Cisco Technology, Fortinet, and Telcordia Technologies.

Below is the list of 10 most cited patents of KDDI:

Publication NumberCitation Count
US8281397B298
US6532091B193
JP2002049766A90
US8687000B29
US8356301B29
US8335354B29
US7385627B29
US6768872B19
US6516110B29
US20100322316A19

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

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

Examiners at the USPTO used 299 KDDI patents in 1603 rejections (35 USC § 102 or 35 USC § 103 types).

The top citing companies in the KDDI patent portfolio are Samsung, Sony and Fujitsu.

List of the Companies whose Patents were rejected citing KDDI –

CompanyNumber of Patent Applications that faced Rejection Citing KDDI PatentsNumber of Rejections (102 & 103)
Samsung54120
Sony3085
Fujitsu2959
Qualcomm2251
Canon2133
Apple2041
Ericsson2033
Huawei1942
IBM1623
LG Electronics1525

Count of 102 and 103 Type Rejections based on KDDI Patents

Top KDDI Patents used in Rejecting Most Patent Applications

Patent NumberCount of Rejected Applications
US20060153132A118
US9454230B213
US7877057B212
US9244544B212
US9389722B212
US20120052899A112
US20120221700A112
US8849063B211
US20110255526A110
US9720587B210
US7486928B210
US7317747B210
US7835268B29
US8279343B29
US7872999B29

What Percentage of KDDI US Patent Applications were Granted?

KDDI (Excluding its subsidiaries) has filed 541 patent applications at USPTO so far (Excluding Design and PCT applications). Out of these 361 have been granted leading to a grant rate of 75.52%.

Below are the key stats of KDDI patent prosecution at the USPTO.

Which Law Firms Filed Most US Patents for KDDI?

Law FirmTotal ApplicationsSuccess Rate
Whda10177.23%
Morgan Lewis & Bockius6168.85%
Foley & Lardner5184.62%
Greenblum & Bernstein4482.05%
Fitch Even Tabin & Flannery3263.33%
Oliff3281.25%
Lewis Roca3170.97%
Westman Champlin & Koehler2479.17%
Locke Lord2176.19%
Oblon Mcclelland Maier & Neustadt1989.47%

What are KDDI‘s key innovation segments?

What Technologies are Covered by KDDI?

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

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

EXCLUSIVE INSIGHTS COMING SOON!

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

Table of Content

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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.