Shizuoka, Japan

Hiroyuki Takatsuka

This inventor holds 3 USPTO granted patents and 1 EPO patent. Top assignee: Koito Manufacturing Company, Ltd.. Active years: 1997-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroyuki Takatsuka. Retrieved from https://idiyas.com/inventor/hiroyuki-takatsuka

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


% Patents Active = 33.3

 

Average Co-Inventor Count = 2.0

ph-index = 1

Forward Citations = 3(Granted Patents)


Company Filing History:


Years Active: 1997-2013

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3 patents (USPTO):Explore Patents

Title: Hiroyuki Takatsuka: Innovator in Mercury-Free Lighting Solutions

Introduction

Hiroyuki Takatsuka is a notable inventor based in Shizuoka, Japan. He has made significant contributions to the field of lighting technology, particularly in the development of mercury-free discharge bulbs. With a total of 3 patents to his name, Takatsuka is recognized for his innovative approaches to creating environmentally friendly lighting solutions.

Latest Patents

One of Takatsuka's latest inventions is a mercury-free vehicle discharge bulb. This innovative bulb features an arc tube and a glass shroud that extends in a front-rear direction to surround the arc tube. The design includes a metal band that holds the rear end of the glass shroud and an insulating plug that supports the shroud in a fixed manner. The unique ratio of the surface areas of the glass shroud and the metal band enhances the bulb's efficiency.

Another significant patent is for a mercury-free arc tube designed for a discharge lamp unit. This arc tube contains multiple electrodes and a sealed chamber filled with metal halide and a starting rare gas. The design ensures a clearness index value that meets high standards, promoting better performance and safety in lighting applications.

Career Highlights

Hiroyuki Takatsuka is currently employed at Koito Manufacturing Company, Ltd., where he continues to innovate in the field of lighting technology. His work focuses on developing sustainable solutions that reduce environmental impact while maintaining high performance in lighting products.

Collaborations

Throughout his career, Takatsuka has collaborated with several talented individuals, including Hiroyuki Serizawa and Michio Takagaki. These collaborations have contributed to the advancement of technology in the lighting industry.

Conclusion

Hiroyuki Takatsuka stands out as a pioneering inventor in the realm of mercury-free lighting solutions. His innovative patents reflect a commitment to sustainability and technological advancement. His contributions are paving the way for a greener future in lighting technology.

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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