Kanagawa, Japan

Shoichi Tozuka

This inventor holds 1 USPTO granted patent. Top assignees: Nec Corporation, Nippon Telegraph & Telephone Co.. Active years: 1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shoichi Tozuka. Retrieved from https://idiyas.com/inventor/shoichi-tozuka

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 = 5.0

ph-index = 1

Forward Citations = 9(Granted Patents)


Company Filing History:


Years Active: 1990

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1 patent (USPTO):Explore Patents

Title: The Innovations of Shoichi Tozuka

Introduction

Shoichi Tozuka is a notable inventor based in Kanagawa, Japan. He is recognized for his contributions to the field of telecommunications, particularly through his innovative designs in radio telephone technology. With a focus on enhancing communication devices, Tozuka has made significant strides in the industry.

Latest Patents

Tozuka holds a patent for a radio telephone that features a base unit connected to a wired telephone line and a handset unit that can connect to the base unit over a radio channel. This invention includes a hook switch and a charger designed to selectively charge the handset unit. The unique aspect of this radio telephone is its automatic control system, which determines the on-hook or off-hook state of the handset unit based on its previous hook state before charging. This innovation simplifies user interaction and enhances the functionality of radio telephones.

Career Highlights

Throughout his career, Tozuka has worked with prominent companies such as NEC Corporation and Nippon Telegraph & Telephone Co. His experience in these organizations has allowed him to develop and refine his inventions, contributing to advancements in telecommunications technology.

Collaborations

Tozuka has collaborated with notable individuals in the field, including Yukihiro Shimura and Noboru Saegusa. These partnerships have fostered a creative environment that has led to the development of innovative solutions in communication technology.

Conclusion

Shoichi Tozuka's contributions to the field of telecommunications, particularly through his patent for a radio telephone, highlight his innovative spirit and dedication to improving communication devices. His work continues to influence the industry and inspire future inventors.

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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