Kashiwa, Japan

Tadashi Takenaka

This inventor holds 7 USPTO granted patents and 1 EPO patent. Top assignees: Tdk Corporation, Mitsubishi Mining and Cement Co. Ltd., Nikon Corporation. Active years: 1991-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tadashi Takenaka. Retrieved from https://idiyas.com/inventor/tadashi-takenaka

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


% Patents Active = 100.0


Average Co-Inventor Count = 2.8

ph-index = 3

Forward Citations = 52(Granted Patents)


Location History:

  • Kashiwa, JP (1991 - 2000)
  • Noda, JP (2012)
  • Chiba, JP (1999 - 2013)

Company Filing History:


Years Active: 1991-2013

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7 patents (USPTO):Explore Patents

Title: The Innovations of Tadashi Takenaka: A Look at his Patents and Contributions

Introduction: Tadashi Takenaka, an accomplished inventor based in Kashiwa, Japan, has made significant contributions to the field of piezoelectric materials and devices. With a remarkable portfolio of seven patents, his work reflects a commitment to innovation and advancement in technology.

Latest Patents: Among his most recent patents, Takenaka has developed a range of cutting-edge inventions including a piezoelectric composition that features a compound represented by the general expression BiTiO—SrBiTiO as a main component, enhanced with manganese or a manganese compound as an additive, where the manganese content is less than 1.0% by mass. Additionally, he has worked on piezoelectric ceramics and compositions that mainly comprise a three-component solid solution expressed in a specific formula, pushing the boundaries of piezoelectric technology.

Career Highlights: Tadashi Takenaka has had an impressive career, working with notable organizations such as TDK Corporation and Nikon Corporation. His expertise in materials science and engineering has been instrumental in the development of advanced piezoelectric devices which have various applications in electronics and precision engineering.

Collaborations: Throughout his career, Takenaka has collaborated with several distinguished colleagues, including Masakazu Hirose and Kazuo Miyabe. These partnerships have fostered an environment of creativity and innovation, further enhancing the impact of his work on the technology landscape.

Conclusion: Tadashi Takenaka stands out as a leading inventor in the realm of piezoelectric materials and devices. His latest patents signify a continuous drive towards innovation and improvement in technological applications. His contributions not only highlight his individual talent but also reflect the collaborative spirit within the field of engineering and material sciences.

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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