Shimada, Japan

Iwao Masumoto

This inventor holds 4 USPTO granted patents. Top assignee: Yamaha Hatsudoki Kabushiki Kaisha. Active years: 1989-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Iwao Masumoto. Retrieved from https://idiyas.com/inventor/iwao-masumoto

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 = 2.0

ph-index = 3

Forward Citations = 55(Granted Patents)


Location History:

  • Shimada, JP (1989 - 1990)
  • Iwata, JP (1991)
  • Shimada both of, JP (1992)

Company Filing History:


Years Active: 1989-1992

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4 patents (USPTO):Explore Patents

Title: Iwao Masumoto: Innovator in Engine Technology

Introduction

Iwao Masumoto is a notable inventor based in Shimada, Japan. He has made significant contributions to engine technology, holding a total of 4 patents. His work focuses on improving the efficiency and performance of internal combustion engines.

Latest Patents

Masumoto's latest patents include a water cooling means for engines and an intake system for automotive engines. The water cooling means features an improved thermostat arrangement designed to introduce a swirl in the thermostat housing, which reduces pulsations in the coolant. This innovative design also positions the water pump at one end of the engine and the thermostat at the other, facilitating transverse mounting. His intake system for automotive engines presents a compact, high-performance induction system for V-type engines, incorporating plenum chambers above each cylinder head with runners that serve common intake passages.

Career Highlights

Iwao Masumoto is associated with Yamaha Hatsudoki Kabushiki Kaisha, a company renowned for its advancements in engine technology. His work has contributed to the company's reputation for innovation and quality in the automotive industry.

Collaborations

Masumoto has collaborated with notable coworkers such as Osamu Takii and Akira Hirata, further enhancing the innovative environment at Yamaha.

Conclusion

Iwao Masumoto's contributions to engine technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence advancements in automotive engineering.

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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