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For the Inventor, By the Inventor

Iwata, Japan

Masahisa Kuranishi

This inventor holds 6 USPTO granted patents. Top assignee: Yamaha Hatsudoki Kabushiki Kaisha. Active years: 1998-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masahisa Kuranishi. Retrieved from https://idiyas.com/inventor/masahisa-kuranishi

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank
USPTO Granted Patents = 6

% Patents Active = 100.0

Average Co-Inventor Count = 2.1

ph-index = 6

Forward Citations = 94(Granted Patents)


Company Filing History:

goldMedal6 out of 4,358 
 
Yamaha Hatsudoki Kabushiki Kaisha
 patents

Years Active: 1998-2003

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6 patents (USPTO):Explore Patents
1. 6555928 - Power source control method for an electric vehicle (2003-04-29),
2. 5845618 - Engine for transport vehicle (1998-12-08),
3. 5799638 - Direction injection system for multi-valve engine (1998-09-01),
4. 5778833 - Water vehicle having a 'V' shaped multi-cylinder crankcase scavenging (1998-07-14),
5. 5769039 - V shaped multi-cylinder engine of crankcase compression type (1998-06-23),
6. 5735240 - Direct injected engine (1998-04-07),

Title: Masahisa Kuranishi: Innovator in Electric Vehicle Technology

Introduction

Masahisa Kuranishi is a prominent inventor based in Iwata, Japan. He has made significant contributions to the field of electric vehicle technology and internal combustion engines. With a total of 6 patents to his name, Kuranishi continues to push the boundaries of innovation in transportation.

Latest Patents

Kuranishi's latest patents include a power source control method for electric vehicles. This invention describes an electric vehicle that utilizes both a first power source for a constant base power level and a second power source for variable power levels. This combination allows the vehicle to meet varying load demands efficiently. Additionally, he has developed an engine for transport vehicles, featuring a compact, high-performance, four-cycle crankcase compression supercharged internal combustion engine. This engine design includes two throttle valves that enhance throttle response and performance while preventing seal degradation in the lubricating system.

Career Highlights

Kuranishi is associated with Yamaha Hatsudoki Kabushiki Kaisha, a leading company in the automotive industry. His work has been instrumental in advancing technologies that improve vehicle performance and efficiency.

Collaborations

Kuranishi has collaborated with notable colleagues such as Jun Taue and Takeshi Ito, contributing to various innovative projects within the company.

Conclusion

Masahisa Kuranishi's contributions to electric vehicle technology and engine design highlight his role as a key innovator in the automotive field. His patents reflect a commitment to enhancing vehicle performance and sustainability.

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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