Kanagawa, Japan

Koichi Hatakeyama

This inventor holds 2 USPTO granted patents. Top assignee: Fuji Photo Film Company, Limited. Active years: 2000-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Koichi Hatakeyama. Retrieved from https://idiyas.com/inventor/koichi-hatakeyama-zdy23fjn

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 = 3.7

ph-index = 1

Forward Citations = 3(Granted Patents)


Company Filing History:


Years Active: 2000-2001

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2 patents (USPTO):Explore Patents

Title: Koichi Hatakeyama: Innovator in Instant Photo Technology

Introduction

Koichi Hatakeyama is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of instant photography, holding a total of 2 patents that showcase his innovative spirit and technical expertise.

Latest Patents

Hatakeyama's latest patents include the "Instant Photo Film Pack" and the "Counter Device for Sheet Photo Film Pack." The Instant Photo Film Pack features a pack case designed to hold a stack of ten self-processing photo film units. It includes an outlet slit for the exit of exposed film units and a light-shielding flap that ensures light-tight closure. The flap is equipped with adhering regions that facilitate its attachment to the pack case.

The Counter Device for Sheet Photo Film Pack is designed to work with a pack housing that contains eight sheet photo film units. This device features a counter chamber with a rotatable counter disk that displays counter numerals in an arc-shaped arrangement. The counter is activated by an external mechanical shift signal, allowing it to count each sheet photo film unit accurately.

Career Highlights

Koichi Hatakeyama is currently employed at Fuji Photo Film Company, Limited, where he continues to develop innovative solutions in the realm of photography. His work has significantly impacted the way instant photography is experienced by consumers.

Collaborations

Throughout his career, Hatakeyama has collaborated with talented individuals such as Taro Okutsu and Kazunori Mizuno. These collaborations have fostered a creative environment that has led to the development of groundbreaking technologies in the photography industry.

Conclusion

Koichi Hatakeyama's contributions to instant photography through his patents and work at Fuji Photo Film Company, Limited, highlight his role as a key innovator in the field. His inventions continue to influence the way we capture and share moments today.

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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