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For the Inventor, By the Inventor

Kanagawa, Japan

Takamichi Fujii

This inventor holds 59 USPTO granted patents and 12 published patent applications and 15 EPO patents, primarily in Piezoelectric Devices (CPC class H01L). Top assignees: Fujifilm Corporation, Fuji Photo Film Company, Limited, Fuji Xerox Co., Ltd.. Active years: 2005-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takamichi Fujii. Retrieved from https://idiyas.com/inventor/takamichi-fujii

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

USPTO Granted Patents = 59 

% Patents Active = 61.0

 

Average Co-Inventor Count = 2.1

ph-index = 6

Forward Citations = 175(Granted Patents)

Forward Citations (Not Self Cited) = 168(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Kaisei-machi, JP (2009)
  • Minami-ashigara, JP (2011 - 2013)
  • Ashigarakami-gun, JP (2010 - 2016)
  • Kanagawa-ken, JP (2008 - 2018)
  • Kanagawa, JP (2005 - 2023)

Company Filing History:

goldMedal56 out of 16,949 
 
Fujifilm Corporation
 patents
silverMedal3 out of 16,458 
 
Fuji Photo Film Company, Limited
 patents
bronzeMedal1 out of 11,665 
 
Fuji Xerox Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 2005-2025

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Areas of Expertise:
Piezoelectric Element
Liquid Ejection Device
Film Formation Method
Power Generation Element
Pyroelectric Sensor
Field-Effect Transistor
Sputtering Method
Resonant Transducer
Actuator Structure
Ferroelectric Film
Physical Vapor Deposition
Droplet Jetting Device
59 patents (USPTO):Explore Patents
1. 12414473 - Piezoelectric element (2025-09-09),
2. 11751478 - Method of manufacturing power generation element, power generation element, and power generation apparatus (2023-09-05),
3. 11165011 - Piezoelectric element and method for manufacturing piezoelectric element (2021-11-02),
4. 11081637 - Laminate structure, piezoelectric element, and method of manufacturing piezoelectric element (2021-08-03),
5. 10914638 - Pyroelectric sensor (2021-02-09),
6. 10217929 - Piezoelectric film, piezoelectric element, and liquid discharge apparatus (2019-02-26),
7. 10011111 - Piezoelectric film, production method thereof, piezoelectric element, and liquid discharge apparatus (2018-07-03),
8. 9620704 - Method for etching piezoelectric film and method for manufacturing piezoelectric element (2017-04-11),
9. 9437801 - Piezoelectric device and method for using same (2016-09-06),
10. 9406809 - Field-effect transistor (2016-08-02),
11. 9136459 - Piezoelectric device and method of manufacturing piezoelectric device (2015-09-15),
12. 9111732 - Sputtering method and apparatus (2015-08-18),
13. 9024512 - Resonant transducer, method of producing the resonant transducer, and ultrasonic treatment tool including the resonant transducer (2015-05-05),
14. 8974626 - Method of manufacturing micro structure, and substrate structure (2015-03-10),
15. 8864288 - Piezoelectric device, method of manufacturing piezoelectric device, and liquid ejection head (2014-10-21),

Title: **Takamichi Fujii: Innovator in Power Generation Technologies**

Introduction

Takamichi Fujii is a renowned inventor based in Kanagawa-ken, Japan, with an impressive record of 58 patents. His work primarily focuses on advancements in power generation technologies, particularly those involving piezoelectric elements and manufacturing methods. Fujii’s innovative contributions are reshaping how energy can be harnessed from motion and vibrations.

Latest Patents

Among Fujii's latest patents are several groundbreaking inventions that include methods and devices for generating power. One notable patent details a method for manufacturing a power generation element, which consists of a series of steps designed to optimize efficiency and performance. This method involves the strategic placement of a support unit and a weight unit along a vibrating substrate to enhance power generation capabilities. Another patent emphasizes the design of a piezoelectric element, showcasing a laminate structure that includes multiple electrodes and piezoelectric films, specifically engineered to operate with high efficiency and stability.

Career Highlights

Fujii has collaborated with prominent organizations such as Fujifilm Corporation and Fuji Photo Film Company, Limited, where his research and development efforts have significantly contributed to the field of power generation. His work has been pivotal in advancing technologies that leverage vibration energy, thereby promoting sustainable energy solutions.

Collaborations

Throughout his career, Takamichi Fujii has worked alongside talented professionals such as Takayuki Naono and Yoshikazu Hishinuma. This collaboration has fostered a creative environment, leading to numerous innovations that have garnered attention within the engineering and technological communities.

Conclusion

Takamichi Fujii’s innovative spirit and relentless pursuit of advancement in power generation continue to inspire a new generation of inventors and engineers. His numerous patents are a testament to his commitment to creating technologies that enhance energy efficiency and sustainability, making a meaningful impact in the field. As developments in his inventions unfold, they hold the potential to revolutionize energy generation methods in ways previously unimagined.

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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