This inventor holds 39 USPTO granted patents and 29 published patent applications and 14 EPO patents, primarily in Optical Semiconductor Technology. Top assignees: Nitto-Denko Corporation, Sekisui Chemical Co., Ltd., Eisai Company, Limited. Active years: 2003-2025.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Osaka, JP (2005 - 2019)
- Ibaraki, JP (2003 - 2020)
Company Filing History:
35 out of 3,951 
3 out of 882 
1 out of 677 
Years Active: 2003-2025
Areas of Expertise:
Title: Innovations by Hiroyuki Katayama in Photocatalytic and Gas Sensor Technologies
Introduction
Hiroyuki Katayama, based in Osaka, Japan, is a prominent inventor with an impressive portfolio of 37 patents. His contributions to the fields of photocatalysis and gas sensing have significantly advanced technology and environmental science.
Latest Patents
Among his latest innovations, one notable patent features a photocatalytic element designed to enhance efficiency in light interactions. This element comprises a photocatalytic layer containing at least one photocatalytic material, paired with a light-emitting source. The strategic positioning of the light source raises the surface temperature of the photocatalytic material to a range between 10°C and 90°C, optimizing its functionality.
Another significant patent is centered around a gas sensor element designed for detecting acetone gas concentrations. This device utilizes a boron-doped polycrystalline n-type semiconductor known as epsilon WO. The patent also discusses multi-detector gas sensor elements that use varying material properties to detect acetone gas more effectively, showcasing an innovative approach to gas detection.
Career Highlights
Hiroyuki has worked with leading companies in the chemical and materials industry, including Nitto Denko Corporation and Sekisui Chemical Co., Ltd. His expertise in these roles has contributed to many successful projects and advancements in product development.
Collaborations
Throughout his career, Hiroyuki Katayama has collaborated with esteemed professionals, including Ryuichi Kimura and Haruka Fujii. These partnerships have fostered a rich exchange of ideas, enhancing the creativity and effectiveness of their innovative projects.
Conclusion
Hiroyuki Katayama's myriad of patents and collaborations highlights his substantial impact on technology and innovation. His work in photocatalytic elements and gas sensing technologies continues to inspire future advancements in these critical fields, making a difference in both industry and everyday life.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile