Hyogo, Japan

Takeshi Nakayama

This inventor holds 130 USPTO granted patents and 21 published patent applications and 11 EPO patents, primarily in Sensor Technology (CPC class 365185). Top assignees: Mitsubishi Denki Kabushiki Kaisha, Panasonic Intellectual Property Management Co., Ltd., Hitachi, Ltd.. Active years: 1980-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takeshi Nakayama. Retrieved from https://idiyas.com/inventor/takeshi-nakayama

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

USPTO Granted Patents = 130 

% Patents Active = 76.2

 

Average Co-Inventor Count = 3.3

ph-index = 26

Forward Citations = 1,700(Granted Patents)

Forward Citations (Not Self Cited) = 1,659(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Itami, JP (1987 - 1989)
  • Hyogo-ken, JP (1996 - 1999)
  • Kadoma, JP (2004)
  • Fukuoka, JP (1992 - 2005)
  • Hitachi, JP (2005 - 2006)
  • Katano-gun, JP (2007)
  • Nishinomiya, JP (2008 - 2009)
  • Katano, JP (2003 - 2010)
  • Ibaraki, JP (2009 - 2011)
  • Hitachinaka, JP (2008 - 2015)
  • Tokyo, JP (1980 - 2023)
  • Hyogo, JP (1989 - 2024)

Company Filing History:

goldMedal38 out of 21,351 
 
Mitsubishi Denki Kabushiki Kaisha
 patents
silverMedal30 out of 13,338 
 
Panasonic Intellectual Property Management Co., Ltd.
 patents
bronzeMedal20 out of 42,740 
 
Hitachi, Ltd.
 patents
4. 15 out of 27,375 
 
Matsushita Electric Industrial Co., Ltd.
 patents
5. 11 out of 16,454 
 
Panasonic Corporation
 patents
6. 4 out of 343 
 
Nippon Paper Industries Co., Ltd.
 patents
7. 3 out of 3,781 
 
Renesas Technology Corp.
 patents
8. 2 out of 36 
 
Hitachi Power Solutions Co., Ltd.
 patents
9. 2 out of 4,023 
 
Panasonic Intellectual Property Corporation of America
 patents
10. 2 out of 11 
 
Renesas Device Design Corporation
 patents
11. 2 out of 1,769 
 
Taiyo Yuden Co., Ltd.
 patents
12. 1 out of 30 
 
Hitachi Engineering Services Co., Ltd.
 patents
13. 1 out of 29 
 
Hitachi Industrial Products, Ltd.
 patents
14. 1 out of 900 
 
Hitachi Medical Corporation
 patents
15. 1 out of 665 
 
Lintec Corporation
 patents
16. 1 out of 16 
 
Nemoto & Company, Ltd.
 patents
17. 1 out of 592 
 
Panasonic Intellectual Property Managment Co., Ltd.
 patents
18. 1 out of 4,548 
 
Sumitomo Rubber Industries Limited
 patents
where one patent can have more than one assignee

Years Active: 1980-2026

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Areas of Expertise:
Estimation Method
Sensor
Biometric Device
Positioning Sensor
Living Body Vector
Carboxylated Cellulose
Rotating Electrical Machine
Wireless Communication
Superconducting Magnet
Filtration Process
Identification Device
Proximity Communication
130 patents (USPTO):Explore Patents

Title: Takeshi Nakayama: Innovator Extraordinaire in Hyogo, Japan

Introduction:

Takeshi Nakayama, a prolific inventor based in Hyogo, Japan, boasts an impressive repertoire of 123 patents. With a passion for pushing the boundaries of technology, Nakayama has made significant contributions to diverse fields such as signal estimation and cellulose nanofibers. This article delves into his latest patents, career highlights, and notable collaborations.

Latest Patents:

One of Nakayama's recent patents is an estimation method, estimation device, and program. This method involves calculating complex transfer functions based on reception signals received from multiple antenna elements. By analyzing the variation component caused by living bodies, Nakayama's method allows for the estimation of the number of living bodies present. This breakthrough finds applications in developing smarter sensing systems and improving security measures.

Another noteworthy patent from Nakayama is the development of acid type carboxylated cellulose nanofiber. With this invention, he aims to create cellulose nanofibers with high viscosity in low shear regions or very short fiber lengths. These acid type carboxylated cellulose nanofibers possess excellent characteristics for various industrial applications, such as enhancing the performance of bio-based materials and reinforcing composites.

Career Highlights:

Nakayama has excelled in his career with his work in esteemed companies such as Mitsubishi Electric Corporation and Panasonic Intellectual Property Management Co., Ltd. His innovative mindset and dedication to research have earned him a prominent position in the field of patents and inventions.

Collaborations:

During his career, Nakayama has collaborated with esteemed colleagues, such as Yasushi Terada and Yoshikazu Miyawaki. These collaborations have further enriched his expertise and paved the way for groundbreaking inventions. The collaborative efforts between Nakayama and his coworkers have resulted in cutting-edge advancements in various fields, including telecommunications and material sciences.

Conclusion:

Takeshi Nakayama's impressive patent portfolio speaks volumes about his ingenuity and commitment to innovation. His latest patents ranging from estimation methods to cellulose nanofibers reflect his multidisciplinary approach towards solving real-world challenges. With an illustrious career spanning multiple prestigious companies and collaborations with talented individuals, Nakayama continues to leave a lasting impact on the world of inventions and patents. As he continues to break new ground, we eagerly anticipate the next wave of his groundbreaking inventions.

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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