Machida, Japan

Tetsuo Murayama

This inventor holds 25 USPTO granted patents, primarily in Electrophotographic Technology. Top assignees: Mitsubishi Chemical Corporation, Mitsubishi Chemical Industries Limited, Mitsubishi Kasei Corporation. Active years: 1980-2008.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tetsuo Murayama. Retrieved from https://idiyas.com/inventor/tetsuo-murayama

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


% Patents Active = 96.0

Average Co-Inventor Count = 3.5

ph-index = 12

Forward Citations = 476(Granted Patents)


Location History:

  • Tokyo, JP (1992)
  • Machida, JP (1980 - 1996)
  • Yokohama, JP (1998 - 2004)
  • Kanagawa, JP (2002 - 2008)

Company Filing History:


Years Active: 1980-2008

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Areas of Expertise:
Electrophotographic Photoreceptor
Optical Recording Medium
Organic Electroluminescent Device
Fluorescent Material
Photosensitive Member
Ink Jet Recording Method
Squarylium Compounds
Photochromic Material
Azo Compounds
Metal Chelate
Plasma Display Panels
Dual Layer Technology
25 patents (USPTO):Explore Patents

Title: Tetsuo Murayama: Innovator in Light Emitting Technologies

Introduction

Tetsuo Murayama, based in Machida, Japan, is a prolific inventor with an impressive portfolio of 25 patents. His work primarily revolves around light emitting devices and fluorescent materials, contributing significantly to advancements in the field of optoelectronics.

Latest Patents

One of Murayama's notable innovations includes a light emitting device designed to generate high-intensity light emission. This device utilizes a fluorescent material containing a rare earth element ion complex, which enhances durability. The patent details a semiconductor light emitting element that emits light across the near-ultraviolet to visible light spectrum. The associated fluorescent material incorporates a rare earth element ion complex with an aromatic ring-containing Bronsted acid ion as a ligand, demonstrating its unique capability to emit light through interaction with the semiconductor element.

Career Highlights

Throughout his career, Tetsuo Murayama has worked with esteemed companies, including Mitsubishi Chemical Industries Limited and Mitsubishi Chemical Corporation. These affiliations have provided him with a platform to refine his inventions and contribute to groundbreaking technologies in light emission.

Collaborations

Murayama's journey in innovation has been further enriched through collaborations with notable colleagues, such as Hitoshi Ono and Shigenori Otsuka. Together, these inventors have combined their expertise to drive developments in the field, focusing on enhancing the efficiency and performance of light emitting devices.

Conclusion

Tetsuo Murayama's contributions to the field of light emitting technologies stand as a testament to his inventive spirit and dedication to improving optical materials. His patents not only reflect his innovative prowess but also his commitment to advancing the science of illumination, positioning him as a key figure in the realm of modern inventions.

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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