Tokyo, Japan

Yuichi Kakishima

This inventor holds 114 USPTO granted patents and 63 published patent applications and 25 EPO patents, primarily in Wireless Communication (CPC class H04W16-28). Top assignee: Ntt Docomo, Inc.. Active years: 2014-2026.

USPTO Granted Patents = 114 

% Patents Active = 82.5

 

Average Co-Inventor Count = 3.4

ph-index = 5

Forward Citations = 129(Granted Patents)

Forward Citations (Not Self Cited) = 116(Dec 10, 2025)


Inventors with similar research interests:

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Location History:

  • Tokyo, JO (2014)
  • Kanagawa, JP (2014)
  • Tokyo, JP (2014 - 2024)
  • Palo Alto, CA (US) (2019 - 2024)

Company Filing History:


Years Active: 2014-2026

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Areas of Expertise:
Wireless Communication
Quality of Service
MIMO Layers
Channel State Information
Transmission Density
Doppler Estimation
Radio Link Monitoring
Frequency Resource Allocation
5G New Radio
Base Station Apparatus
User Equipment
Terminal Communication
114 patents (USPTO):Explore Patents

Title: Unveiling the Inventor: Yuichi Kakishima

Introduction:

Yuichi Kakishima, a brilliant innovator hailing from Tokyo, Japan, has made significant contributions in the field of telecommunications with a remarkable portfolio of 98 patents.

Latest Patents:

1. Terminal and communication method for controlling transmission based on transmission density: Kakishima's groundbreaking invention revolutionizes device-to-device direct communication by efficiently controlling transmission based on reference signal allocation information, enhancing the overall communication experience.

2. Channel state information reference signal transmission method and base station: His method of transmitting channel state information reference signals (CSI-RSs) in a communication system sets a new standard for base stations, optimizing the use of aperiodic CSI-RSs for improved mobile station communication.

Career Highlights:

Yuichi Kakishima is a key asset at NTT DOCOMO, INC., a prominent telecommunications company in Japan, where he continues to spearhead groundbreaking innovations in the industry.

Collaborations:

Kakishima has collaborated closely with esteemed colleagues such as Satoshi Nagata and Chongning Na, pooling their expertise to push the boundaries of telecommunications technology further.

Conclusion:

Inventor Yuichi Kakishima's relentless pursuit of innovation and his outstanding contributions in the field of telecommunications underscore his status as a visionary inventor shaping the future of communication technology.

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