Ichiro Okajima

This inventor holds 58 USPTO granted patents and 1 published patent application, plus 3 CIPO patents and 10 EPO patents, primarily in Mobile Communication Systems (CPC class H04W). Top assignees: Ntt Docomo, Inc., Ntt Mobile Communications Network, Inc., Mobile Communications Network Inc.. Active years: 1997-2015.

USPTO Granted Patents = 58 (Patent Applications = 1)

% Patents Active = 32.8

CIPO Patents = 3

EPO Patents = 10 (Patent Applications = 6)

Average Co-Inventor Count = 3.5

ph-index = 9

Forward Citations = 307(Granted Patents)

Forward Citations (Not Self Cited) = 306(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Gyouda, JP (2003)
Gyoda, JP (2009 - 2010)
Kanagawa, JP (1998 - 2011)
Yokohama, JP (1997 - 2013)
Tokyo, JP (2009 - 2014)
Yokosuka, JP (2013 - 2014)
Chiyoda-ku, JP (2014 - 2015)

Company Filing History:

Ntt Mobile Communications Network, Inc.

patents

1 out of 2

Mobile Communications Network Inc.

patents

4. 1 out of 1,173

Nippon Sheet Glass Company, Limited

patents

Years Active: 1997-2015

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Areas of Expertise:

Mobile Communication

Terminal Estimation

Packet Transmission

Location Information

Data Combination

Information Analysis

Mobility Management

Statistical Generation

Control Apparatus

Mesh Data Creation

Link Management

Ad-Hoc Wireless

58 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 8942724 - Number of terminal estimation device and number of terminal estimation method (2015-01-27),

2. 8903791 - Statistical information generation system and statistical information generation method (2014-12-02),

3. 8880095 - Position information aggregation device and position information aggregation method (2014-11-04),

4. 8849307 - Terminal number estimation device and terminal number estimation method (2014-09-30),

5. 8818414 - Mobile station, communication system, and communication method for collecting location information of a mobile station (2014-08-26),

6. 8811958 - Communication system, information analysis device, and information analysis method (2014-08-19),

7. 8725554 - Household member number distribution estimation apparatus and household member number distribution estimation method (2014-05-13),

8. 8600957 - Mesh data creation method (2013-12-03),

9. 8509820 - Location identifying method and location identifying device (2013-08-13),

10. 8467718 - Communication system, information analyzing apparatus and information analyzing method (2013-06-18),

11. 8386452 - Data combination system and data combination method (2013-02-26),

12. 8359046 - Control apparatus and mobile terminal (2013-01-22),

13. 8036204 - Mobile terminal, control apparatus, home agent and packet communications method (2011-10-11),

14. 8023493 - Mobile terminal, control apparatus, home agent and packet communications method (2011-09-20),

15. 8018915 - Mobile terminal, control apparatus, home agent and packet communications method (2011-09-13),

Title: Ichiro Okajima - An Innovative Mind in Technology

Introduction

Ichiro Okajima is a prominent inventor based in Yokohama, Japan. With an impressive portfolio of 58 patents, Okajima has contributed significantly to the field of technology, particularly in the areas of terminal estimation and statistical information generation.

Latest Patents

His latest innovations include two notable patents: the "Number of Terminal Estimation Device" and the "Number of Terminal Estimation Method." The terminal estimation device is designed to acquire location data and related time information, allowing for the accurate estimation of the number of terminals present in a given observation area during a specified time frame. The second patent, the statistical information generation system, introduces a sophisticated method for processing unidentifiable location and attribute data, ultimately outputting refined statistical insights while concealing sensitive information.

Career Highlights

Okajima has had an illustrious career, having worked with leading telecommunications companies such as NTT Docomo, Inc. and NTT Mobile Communications Network, Inc. His contributions to these organizations have reinforced their technological advancements and positioned them at the forefront of the industry.

Collaborations

Throughout his career, Okajima has collaborated with notable colleagues including Narumi Umeda and Koji Omae. Together, they have worked on developing pioneering technologies that have the potential to transform the way we understand and interact with data.

Conclusion

Ichiro Okajima’s dedication to innovation and excellence in technology is evident in his extensive patent portfolio and professional collaborations. His work continues to influence advancements in terminal estimation and data processing, marking him as a significant figure in the world of inventions and technology.