Kyoto, Japan

Toshiaki Takenaka

This inventor holds 26 USPTO granted patents and 4 published patent applications and 5 EPO patents, primarily in Circuit Board Manufacturing. Top assignees: Matsushita Electric Industrial Co., Ltd., Panasonic Intellectual Property Management Co., Ltd., Panasonic Corporation. Active years: 2003-2025.

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

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

USPTO Granted Patents = 26 

% Patents Active = 38.5


Average Co-Inventor Count = 3.9

ph-index = 4

Forward Citations = 55(Granted Patents)


Location History:

  • Kyoto, JP (2003 - 2012)
  • Soraku-gun, JP (2005 - 2012)
  • Osaka, JP (2016 - 2022)

Company Filing History:


Years Active: 2003-2025

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Areas of Expertise:
Light Source Device
Circuit Board
Anomaly Detection
Multi-Layer Circuit Board
Manufacturing Method
Lighting System
Strobe Device
Mask Film
Printing Plate
Sensor Technology
Board Manufacturing
Drying Materials
26 patents (USPTO):Explore Patents

Title: Toshiaki Takenaka: Pioneering Innovations in Light Source Technology

Introduction: Toshiaki Takenaka, an accomplished inventor based in Kyoto, Japan, has made significant contributions to the field of light source technology, with an impressive portfolio of 25 patents. His innovative approaches and developments have influenced lighting solutions in various applications, establishing him as a key figure in the industry.

Latest Patents: Among his latest patents, Takenaka has developed a light source device equipped with a sensor for detecting anomalies in wavelength converting members. This device includes multiple light sources and a condensing optical member, with a fluorescent unit that converts a portion of the light emitted from the sources. The innovative aspect of this design is the integration of a sensor that monitors any anomalies in the fluorescent unit within a circular area enclosed by the light sources.

Another notable patent describes a similar light source device, which consists of a light source, a first lens that condenses the emitted light, and a member that converts this light. The device enhances functionality by incorporating a sensor that detects light traveling back from the converting member toward the light source. Key features include a unique lens design that optimizes light direction and conversion efficiency, showcasing Takenaka's dedication to improving light source performance.

Career Highlights: Toshiaki Takenaka has had a fruitful career with prominent companies such as Matsushita Electric Industrial Co., Ltd. and Panasonic Corporation. His work across these organizations has allowed him to refine his skills and expand his innovative capabilities, leading to his substantial patent portfolio.

Collaborations: Throughout his career, Takenaka has had the privilege of collaborating with notable colleagues, including Shinji Nakamura and Kunio Kishimoto. These partnerships have further propelled his innovative endeavors and facilitated the development of groundbreaking technologies in light source systems.

Conclusion: Toshiaki Takenaka's contributions to the field of light source technology highlight his expertise and creativity as an inventor. With 25 patents to his name, his work continues to inspire advancements in lighting solutions, reinforcing his position as a leading innovator in Japan and beyond. As technology continues to evolve, Takenaka's inventions are likely to remain at the forefront of light source development.

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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