Iruma, Japan

Tsutomu Yokota

This inventor holds 2 USPTO granted patents. Top assignee: Other. Active years: 2004.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tsutomu Yokota. Retrieved from https://idiyas.com/inventor/tsutomu-yokota

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 = 5.5

ph-index = 2

Forward Citations = 92(Granted Patents)


Company Filing History:

goldMedal2 out of 834,513 
Other
 patents

Years Active: 2004

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2 patents (USPTO):Explore Patents

Title: Tsutomu Yokota: Innovator in Light-Emitting Devices

Introduction

Tsutomu Yokota is a notable inventor based in Iruma-gun, Japan. He has made significant contributions to the field of light-emitting devices, holding a total of 2 patents. His innovative work has paved the way for advancements in lighting technology.

Latest Patents

Yokota's latest patents include a light-emitting device that features a light-emitting element mounted in a cup-like portion formed on a substrate and a case. This cup-like portion is filled with a sealing member made of a light-transmissible resin. Additionally, a layer made of a material with a refractive index lower than that of the sealing member is provided between the sealing member and the surface of the case. Another patent describes a light-emitting device where a light-emitting element, exhibiting an emission peak wavelength in a range of not longer than 500 nm, is mounted into a cup-like portion of a base member. In this case, the cup-like portion is filled with epoxy group-containing silicone rubber, and an aromatic polyamide-based resin is used as a reflector material.

Career Highlights

Throughout his career, Tsutomu Yokota has focused on developing innovative technologies that enhance the efficiency and effectiveness of light-emitting devices. His work has been instrumental in advancing the capabilities of lighting solutions.

Collaborations

Yokota has collaborated with notable individuals in his field, including Takemasa Yasukawa and Satoshi Honda. These partnerships have contributed to the success of his projects and the development of new technologies.

Conclusion

Tsutomu Yokota's contributions to the field of light-emitting devices demonstrate his innovative spirit and dedication to advancing technology. His patents reflect a commitment to improving lighting solutions, making him a significant figure in the industry.

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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