Yokohama, Japan

Takayuki Kohama

This inventor holds 3 USPTO granted patents. Top assignees: Sanshin Industry Co., Ltd., Sanshin Kogyo Kabushiki Kaisha, Tdk Corporation. Active years: 1989-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takayuki Kohama. Retrieved from https://idiyas.com/inventor/takayuki-kohama

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 = 2.4

ph-index = 2

Forward Citations = 12(Granted Patents)


Company Filing History:


Years Active: 1989-1992

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3 patents (USPTO):Explore Patents

Title: Takayuki Kohama: Innovator in Data Cartridge Technology

Introduction

Takayuki Kohama is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of data cartridge technology, holding a total of 3 patents. His innovative methods have enhanced the functionality and reliability of magnetic tape systems.

Latest Patents

Kohama's latest patents include a method for manufacturing a tape guide for use in data cartridges. This guide pin-manufacturing method involves plating a stepped cylindrical main portion, typically made of brass or another non-magnetic material, with a hard, thick chromium plating layer. The process includes rotating the main portion in a plating liquid and forming numerous minute grooves that extend in the circumferential direction. Additionally, two collars are forcibly fitted around the ends of the main portion to create a guide pin that stabilizes the magnetic tape's travel within the data cartridge. Another patent focuses on tape guides for magnetic tape cassettes, which consist of half cylindrical tubes designed to fit securely over support posts within the cassette housing. The manufacturing method involves creating thin-walled portions as grooves on the tube's inner or outer side, facilitating a tight fit and division of the tube into two halves.

Career Highlights

Throughout his career, Takayuki Kohama has worked with prominent companies such as Sanshin Industry Co., Ltd. and TDK Corporation. His experience in these organizations has allowed him to refine his skills and contribute to advancements in data storage technology.

Collaborations

Kohama has collaborated with notable individuals in the industry, including Minoru Kida and Hideo Kojima. These partnerships have further enriched his work and innovation in the field.

Conclusion

Takayuki Kohama's contributions to data cartridge technology through his patents and collaborations highlight his role as a significant inventor in the industry. His innovative methods continue to influence the design and functionality of magnetic tape systems.

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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