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For the Inventor, By the Inventor

Chigasaki, Japan

Keizo Takahama

This inventor holds 9 USPTO granted patents. Top assignees: Sumitomo Bakelite Company Limited, Promerus, Lcc. Active years: 1998-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keizo Takahama. Retrieved from https://idiyas.com/inventor/keizo-takahama

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

USPTO Granted Patents = 9

% Patents Active = 55.6

Average Co-Inventor Count = 5.7

ph-index = 3

Forward Citations = 19(Granted Patents)


Location History:

  • Yokohama, JP (1998)
  • Chigasaki, JP (2010 - 2013)
  • Tochigi, JP (2014)

Company Filing History:

goldMedal9 out of 615 
 
Sumitomo Bakelite Company Limited
 patents
silverMedal4 out of 164 
 
Promerus, Lcc
 patents
where one patent can have more than one assignee

Years Active: 1998-2014

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9 patents (USPTO):Explore Patents
1. 8699841 - Photosensitive resin composition, optical waveguide film, film for forming optical waveguide, optical interconnect, opto-electric hybrid circuit board, electronic device, and a method of manufacturing an optical waveguide film (2014-04-15),
2. 8420293 - Optical waveguides and methods thereof (2013-04-16),
3. 8208769 - Substrate for mounting an optical element, optical circuit substrate, and substrate on which an optical element is mounted (2012-06-26),
4. 8200058 - Light guide and light guide structure (2012-06-12),
5. 8053166 - Optical waveguides and methods thereof (2011-11-08),
6. 8021825 - Optical waveguides and methods thereof (2011-09-20),
7. 7869670 - Substrate for mounting an optical element, optical circuit substrate, and substrate on which an optical element is mounted (2011-01-11),
8. 7820356 - Optical waveguides and methods thereof (2010-10-26),
9. 5773509 - Heat resistant resin composition, heat resistant film adhesive and (1998-06-30),

Title: Keizo Takahama: Innovator in Optical Technologies

Introduction

Keizo Takahama is a prominent inventor based in Chigasaki, Japan. He has made significant contributions to the field of optical technologies, holding a total of nine patents. His work focuses on the development of advanced materials and methods for optical applications.

Latest Patents

Takahama's latest patents include a variety of innovative technologies. These patents encompass a photosensitive resin composition, an optical waveguide film, a film for forming optical waveguides, optical interconnects, and opto-electric hybrid circuit boards. Additionally, he has developed electronic devices and methods for manufacturing optical waveguide films. One notable invention is a photosensitive resin composition that includes a cyclic olefin, a monomer or oligomer with a cyclic ether group, and a photoacid generator. This composition is designed to enhance the performance of optical waveguides.

Career Highlights

Throughout his career, Takahama has worked with notable companies such as Sumitomo Bakelite Company Limited and Promerus, LLC. His experience in these organizations has allowed him to refine his expertise in optical materials and technologies.

Collaborations

Takahama has collaborated with esteemed colleagues, including Tetsuya Mori and Koji Choki. These partnerships have contributed to the advancement of his research and the successful development of his patented technologies.

Conclusion

Keizo Takahama is a distinguished inventor whose work in optical technologies has led to numerous patents and innovations. His contributions continue to impact the field, showcasing the importance of research and development in advancing optical applications.

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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