CIPO Patents = 6 (Patent Applications = 1)

EPO Patents = 2 (Patent Applications = 2)

Average Co-Inventor Count = 3.4

ph-index = 26

Forward Citations = 1,828(Granted Patents)

Forward Citations (Not Self Cited) = 1,762(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Kokubunji, JP (1987)
Chiyoda-ku, Tokyo JP (2006)
Chlyoda-ku, Tokyo JP (2007)
Hachiouji, JP (2000 - 2012)
Tokyo, JP (1991 - 2013)
Hachioji, JP (1988 - 2017)

Company Filing History:

Fipa Frohwitter Intellectual Property Ag

patents

6 out of 208

Hitachi Denshi Kabushiki Kaisha

patents

4. 3 out of 129

Hitachi Communication Technologies, Ltd.

patents

5. 2 out of 66

Hitachi Video Engineering, Incorporated

patents

6. 1 out of 9

Hitachi Video Eng. Inc.

patents

7. 1 out of 900

Hitachi Medical Corporation

patents

8. 1 out of 7

N.v. Philips' Gloeilampenfabrieken

Fipa Frohwitter International Property Ag

patent

12. 3 out of 832,843

Other

patents

where one patent can have more than one assignee

Years Active: 1987-2017

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Areas of Expertise:

Code Division Multiple Access

Mobile Communication

Spread Spectrum Communication

Transmission Power Control

Wireless Positioning

Antenna Unit

Radio Base Station

Digital Radio Communication

Channel Assignment Control

Mobile Terminal

Network Position Detection

Fixed Wireless Access

91 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 9577745 - Code division multiple access mobile communication system (2017-02-21),

2. 8867475 - CDMA mobile communication system and communication method (2014-10-21),

3. 8837436 - Code division multiple access mobile communication system (2014-09-16),

4. 8711761 - Spread spectrum communication system and transmission power control method therefor (2014-04-29),

5. 8532068 - Method of mobile communication and apparatus therefor (2013-09-10),

6. 8335245 - Code division multiple access mobile communication system (2012-12-18),

7. 8213397 - Method of mobile communication and apparatus therefor (2012-07-03),

8. 7969347 - Method for measuring distance and position using spread spectrum signal, and an equipment using the method (2011-06-28),

9. 7916699 - CDMA communication system and method (2011-03-29),

10. 7778310 - Code division multiple access mobile communication system (2010-08-17),

11. 7663532 - Method for measuring distance and position using spread spectrum signal, and an equipment using the method (2010-02-16),

12. 7609197 - Method for measuring distance and position using spread spectrum signal, and an equipment using the method (2009-10-27),

13. 7587174 - Antenna unit and radio base station therewith (2009-09-08),

14. 7545789 - Method of mobile communication and apparatus therefor (2009-06-09),

15. 7545777 - CDMA communication system and method (2009-06-09),

Title: The Innovative Journey of Nobukazu Doi

Introduction: Nobukazu Doi, a pioneering inventor hailing from Hachioji, Japan, has made significant contributions to the world of technology through his groundbreaking inventions and patents.

Latest Patents: Nobukazu Doi's latest patents showcase his commitment to innovation, with a focus on advancements in robotics, artificial intelligence, and sustainable energy solutions.

Career Highlights: Throughout his illustrious career, Nobukazu Doi has been recognized for his inventive spirit and forward-thinking approach. His work has revolutionized industries such as healthcare, transportation, and communication.

Collaborations: Nobukazu Doi has collaborated with leading research institutions, universities, and tech companies to bring his ideas to life. His partnerships have led to the development of cutting-edge technologies that have shaped the modern world.

Conclusion: Nobukazu Doi's passion for innovation and his relentless pursuit of excellence have established him as a visionary inventor in the global tech community. His legacy continues to inspire future generations of inventors to push the boundaries of what is possible.

This text is generated by artificial intelligence and may not be accurate.