Saitama, Japan

Keiichi Katayama

This inventor holds 1 USPTO granted patent. Top assignee: Chichibu Cement Co., Ltd.. Active years: 1986.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keiichi Katayama. Retrieved from https://idiyas.com/inventor/keiichi-katayama-bt89j3cq

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 = 4.0

ph-index = 1


Company Filing History:


Years Active: 1986

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1 patent (USPTO):Explore Patents

Title: Keiichi Katayama: Innovator in Voltage Non-Linearity Type Resistors

Introduction

Keiichi Katayama is a notable inventor based in Saitama, Japan. He has made significant contributions to the field of electrical engineering, particularly in the development of voltage non-linearity type resistors. His innovative approach has led to advancements that are crucial for various electronic applications.

Latest Patents

Keiichi Katayama holds a patent for a "Process for the preparation of voltage non-linearity type resistors." This patent describes a method where pre-sintering is conducted at a temperature of no lower than 700°C. The basic composition includes X mole % of ZnO and (100-X) mole % of Fe₂O₃, where 40 ≤ X ≤ 60. Following this, sintering is performed with the pre-sintered body, to which various compounds such as V₂O₅, Bi₂O₃, and others are added in proportions of 0.01-40% by weight.

Career Highlights

Keiichi Katayama is associated with Chichibu Cement Co., Ltd., where he has been instrumental in research and development. His work has not only contributed to the company's portfolio but has also enhanced the understanding of resistor technology in the industry.

Collaborations

Throughout his career, Keiichi has collaborated with notable colleagues, including Keiichi Minegishi and Tokuji Akiba. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Keiichi Katayama's contributions to the field of voltage non-linearity type resistors exemplify the impact of dedicated inventors in advancing technology. His patent and collaborative efforts highlight the importance of innovation in electrical engineering.

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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