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For the Inventor, By the Inventor

Kanagawa, Japan

Osamu Kozakai

This inventor holds 51 USPTO granted patents and 5 published patent applications and 22 EPO patents, primarily in Wireless Power Transfer. Top assignees: Sony Corporation, Sony Semiconductor Solutions Corporation, Sony Group Corporation. Active years: 2005-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Osamu Kozakai. Retrieved from https://idiyas.com/inventor/osamu-kozakai

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

USPTO Granted Patents = 51 

% Patents Active = 72.5

 

Average Co-Inventor Count = 2.6

ph-index = 5

Forward Citations = 371(Granted Patents)

Forward Citations (Not Self Cited) = 364(Dec 10, 2025)


Location History:

  • Chiba, JP (2005)
  • Stuttgart, DE (2020)
  • Kanagawa, JP (2008 - 2024)

Company Filing History:

goldMedal38 out of 58,145 
 
Sony Corporation
 patents
silverMedal10 out of 3,298 
 
Sony Semiconductor Solutions Corporation
 patents
bronzeMedal2 out of 4,241 
 
Sony Group Corporation
 patents
4. 1 out of 150 
 
Sony Ericsson Mobile Communications Japan, Inc.
 patents

Years Active: 2005-2025

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Areas of Expertise:
Wireless Power Transfer
Antenna Systems
Communication Devices
Power Feeding
Non-Contact Power Transmission
Reception Apparatus
Power Receiving
Electromagnetically-Coupled
Power Transmission System
Communication Method
Power Feeding System
Detection Method
51 patents (USPTO):Explore Patents
1. 12273818 - Communication device, communication method, and communication system (2025-04-08),
2. 12126569 - Information communication device and information communication system (2024-10-22),
3. 12015940 - Reception apparatus, antenna control method, and communication system (2024-06-18),
4. 11605979 - Power receiving device and electronic apparatus (2023-03-14),
5. 11316382 - Power feeding apparatus, power receiving apparatus, power feeding system, and method of controlling power feeding (2022-04-26),
6. 11309746 - Wireless power transfer device with foreign object detection, system, and method for performing the same (2022-04-19),
7. 11201407 - Antenna apparatus and communication apparatus (2021-12-14),
8. 11114749 - Communication apparatus and method, antenna apparatus, and communication system (2021-09-07),
9. 11063635 - Device and system for power transmission (2021-07-13),
10. 10998770 - Power feed device (2021-05-04),
11. 10951065 - Power feed system (2021-03-16),
12. 10917181 - Communication apparatus and communication system (2021-02-09),
13. 10911076 - Antenna device, communication device, and communication method (2021-02-02),
14. 10904918 - Communication apparatus and method, and communication system (2021-01-26),
15. 10833776 - Communication system and communication method, and receiver (2020-11-10),

Title: **Innovative Contributions of Osamu Kozakai: A Leader in Information Communication Technologies**

Introduction

Osamu Kozakai, a prominent inventor based in Kanagawa, Japan, has made significant strides in the field of information communication technologies. With a remarkable portfolio of 50 patents, Kozakai has become a key figure in enhancing communication systems and devices.

Latest Patents

Among his latest innovations is an information communication device and information communication system. This inventive device features a transmission unit that wirelessly sends signals containing data to a communication partner device through a transmission antenna. It also incorporates a reception unit capable of receiving an acknowledgment (Ack) signal wirelessly transmitted from the partner device. Notably, a control unit modifies the antenna characteristic control mode of the transmission antenna based on the reception state of the Ack signal received, ensuring efficient communication.

Another significant patent by Kozakai is related to a reception apparatus, antenna control method, and communication system. This apparatus consists of multiple antennas that are compatible with an LTE communication scheme, along with a reception processing section that processes a reception signal acquired by any one of the antennas, highlighting his contributions to advanced communications.

Career Highlights

Throughout his career, Osamu Kozakai has worked with leading technology companies, including Sony Corporation and Sony Semiconductor Solutions Corporation. His experience in these renowned organizations has allowed him to excel in his field and contribute to the advancement of communication technologies.

Collaborations

Kozakai has collaborated with talented individuals, such as Hiroaki Nakano and Kenichi Fujimaki, who have shared his vision of improving communication through innovative technologies. Together, they have pushed the boundaries of what is possible in the realm of information communication devices.

Conclusion

Osamu Kozakai's impressive body of work, marked by his dedication to innovation and collaboration, has significantly advanced the landscape of information communication technologies. His latest patents reflect a deep understanding of the challenges in communication systems and underscore his role as a key contributor to this vital industry.

Profile summary based on public USPTO records.
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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