Kokubunji, Japan

Makoto Okai

This inventor holds 2 USPTO granted patents. Top assignees: British Telecommunications Public Limited Company, Other. Active years: 1997-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Makoto Okai. Retrieved from https://idiyas.com/inventor/makoto-okai-kx6fkcmf

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 2

Forward Citations = 26(Granted Patents)


Company Filing History:


Years Active: 1997-2001

Loading Chart...
2 patents (USPTO):Explore Patents

Title: The Innovations of Makoto Okai

Introduction

Makoto Okai is a notable inventor based in Kokubunji, Japan. He has made significant contributions to the field of optical devices, particularly through his innovative patents. With a total of 2 patents, Okai's work focuses on enhancing optical filtering technologies.

Latest Patents

Okai's latest patents include advancements in optical filters. One of his patents describes an optical filter formed from at least two gratings located in a waveguide region of a semiconductor optical device. Each grating features a multiple peak optical passband, and they are spaced apart to create an optical cavity with a comb-filter characteristic. These gratings may be situated in the active region of an optical gain element, often utilizing superstructure gratings (SSGs). Additionally, he has developed optical comb filters that can be used with waveguides and lasers, further showcasing his expertise in this area.

Career Highlights

Throughout his career, Okai has worked with various organizations, including British Telecommunications Public Limited Company. His experience in the industry has allowed him to refine his skills and contribute to significant technological advancements.

Collaborations

Okai has collaborated with notable individuals such as Ian F Lealman and Michael J Robertson. These partnerships have likely enriched his work and led to innovative solutions in optical technology.

Conclusion

Makoto Okai's contributions to optical filtering technology demonstrate his commitment to innovation and excellence in his field. His patents reflect a deep understanding of semiconductor optical devices and their 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]
Loading…