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For the Inventor, By the Inventor

Tokyo, Japan

Nit Docomo, Inc.


USPTO Granted Patents = 8

% Expired Patents = 37.5

Forward Citations = 69

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27 inventors (with patents filed for the assignee):

goldMedal Kazuaki Takeda (1 out of 247 patents)

silverMedal Hiroki Harada (1 out of 347 patents)

bronzeMedal Liu Liu (1 out of 159 patents)

4.  Qun Zhao (1 out of 116 patents)

5.  Qin Mu (1 out of 189 patents)

6.  Yongbo Zeng (1 out of 61 patents)

7.  Lan Chen (1 out of 167 patents)

8.  Yoshihisa Kishiyama (1 out of 265 patents)

9.  Naoyuki Nakao (1 out of 4 patents)

10.  Nozomi Matsumoto (1 out of 5 patents)

11.  Motoya Takahashi (1 out of 2 patents)

12.  Sumin Kwak (1 out of 4 patents)

13.  Yuuki Fukuyoshi (1 out of 2 patents)

14.  Tomoya Okumura (1 out of 1 patent)

15.  Yongsheng Zhang (1 out of 20 patents)


8 patents:

1. 10831515 - Determination apparatus and determination system (2020-11-10),
2. 10009828 - User terminal and inter-terminal communication method (2018-06-26),
3. 9946453 - Display device and program (2018-04-17),
4. 9882694 - Radio base station, user terminal, radio communication system and radio communication method (2018-01-30),
5. 9306726 - Mobile terminal apparatus, base station apparatus and communication control method (2016-04-05),
6. 9084182 - Method of barring network access in mobile device, mobile device, and processor used in mobile device (2015-07-14),
7. 7031695 - Portable terminal, access control method, and access control program (2006-04-18),
8. 6697622 - Control method of searching neighboring cells, mobile station, and mobile communication system (2004-02-24),
Company Overview
NTT Docomo, Inc. is a leading Japanese mobile communications company that offers a wide range of mobile services including voice, data, and multimedia services. Founded in 1991, the company is known for its cutting-edge technology, strong network infrastructure, and innovative products. With a focus on customer satisfaction and technological advancement, NTT Docomo continues to be a driving force in the telecommunications industry.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

8 Patents

#2,150 in Tokyo

#5,045 in Japan

Tokyo, JP
Tokyo, Japan

Nit Docomo, Inc.

Forward Citations = 69

27 inventors:

goldMedal Kazuaki Takeda (1 out of 247 patents)

silverMedal Hiroki Harada (1 out of 347 patents)

bronzeMedal Liu Liu (1 out of 159 patents)

4.  Qun Zhao (1 out of 116 patents)

5.  Qin Mu (1 out of 189 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nit Docomo, Inc.. Retrieved from https://idiyas.com/company/nit-docomo

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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