Shizuoka, Japan

Toshizo Nishizawa

This inventor holds 4 USPTO granted patents. Top assignee: Mitsubishi Denki Kabushiki Kaisha. Active years: 1981-1985.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshizo Nishizawa. Retrieved from https://idiyas.com/inventor/toshizo-nishizawa

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 = 3.9

ph-index = 4

Forward Citations = 95(Granted Patents)


Company Filing History:


Years Active: 1981-1985

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4 patents (USPTO):Explore Patents

Title: Toshizo Nishizawa: Innovator in Automotive Air Conditioning

Introduction

Toshizo Nishizawa is a prominent inventor based in Shizuoka, Japan. He has made significant contributions to the field of automotive air conditioning, holding a total of 4 patents. His innovative designs have improved the efficiency and functionality of air-conditioning systems in automobiles.

Latest Patents

Nishizawa's latest patents include an air-conditioner specifically designed for automobiles. This air-conditioner features a compressor that is directly connected to the engine. It is equipped with two coaxial compressing cylinders, each with a different displacement. The smaller displacement cylinder operates continuously for dehumidification, while the larger displacement cylinder activates only when air conditioning is required, controlled by a slide valve. Another notable patent is a control device for the air-conditioning system in automobiles. This device utilizes a rolling piston type capacity changeable compressor, which can operate with a single piston cylinder by closing one of the two coaxial cylinders. The system intelligently selects between single or double cylinder operation based on the cooling load.

Career Highlights

Nishizawa has dedicated his career to advancing automotive technology, particularly in air conditioning systems. His work at Mitsubishi Electric Corporation has positioned him as a key player in the industry. His innovative solutions have not only enhanced vehicle comfort but also contributed to energy efficiency.

Collaborations

Throughout his career, Nishizawa has collaborated with talented individuals such as Hideaki Nagatomo and Hiroto Kawahira. These partnerships have fostered a creative environment that has led to groundbreaking advancements in automotive technology.

Conclusion

Toshizo Nishizawa's contributions to automotive air conditioning exemplify the spirit of innovation. His patents reflect a commitment to improving vehicle performance and passenger comfort. His work continues to influence the automotive industry, paving the way for future advancements.

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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