Yokohama, Japan

Toshio Maki

This inventor holds 1 USPTO granted patent. Top assignee: Other. Active years: 1979.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshio Maki. Retrieved from https://idiyas.com/inventor/toshio-maki-5fq4a98c

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 = 3.0

ph-index = 1

Forward Citations = 6(Granted Patents)


Company Filing History:

goldMedal1 out of 834,570 
Other
 patents

Years Active: 1979

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1 patent (USPTO):Explore Patents

Title: Innovations of Toshio Maki

Introduction

Toshio Maki is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of engineering, particularly with his innovative designs in valve technology. His work exemplifies the spirit of innovation and the pursuit of efficiency in mechanical systems.

Latest Patents

One of Toshio Maki's key inventions is a directional change-over valve. This valve features a valve body with connecting surfaces on both sides, a spool that is slidably inserted into the valve body, and a check valve that can be replaced depending on its utility. The design includes multiple valve chambers, with the central chamber communicating with a hole for mounting the check valve. This allows for the removable installation of the check valve. The passages provided open at the connecting surfaces of the valve body in the respective chambers, enabling the formation of parallel, tandem, and series circuits. This invention simplifies the structure and circuits, resulting in a compact directional change-over valve device. Toshio Maki holds 1 patent for this innovative design.

Career Highlights

Throughout his career, Toshio Maki has demonstrated a commitment to advancing technology through his inventive work. His focus on creating efficient and effective solutions has made a lasting impact in his field.

Collaborations

Toshio Maki has collaborated with notable colleagues, including Isao Oki and Kiyoshi Shirai. Their combined expertise has contributed to the development of innovative solutions in valve technology.

Conclusion

Toshio Maki's contributions to the field of engineering, particularly through his directional change-over valve, highlight his innovative spirit and dedication to improving mechanical systems. His work continues to inspire future advancements in technology.

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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