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For the Inventor, By the Inventor

Higashimatsuyama, Japan

Keiichi Yamada

This inventor holds 18 USPTO granted patents, primarily in Fuel Injection Technology. Top assignee: Diesel Kiki Co., Ltd.. Active years: 1981-1988.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keiichi Yamada. Retrieved from https://idiyas.com/inventor/keiichi-yamada-b8p41oup

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

USPTO Granted Patents = 18

% Patents Active = 100.0

Average Co-Inventor Count = 2.1

ph-index = 8

Forward Citations = 188(Granted Patents)


Location History:

  • Matsuyama, JP (1982)
  • Ohmiya, JP (1984)
  • Higashi-Matsuyama, JP (1981 - 1988)

Company Filing History:

goldMedal18 out of 596 
 
Diesel Kiki Co., Ltd.
 patents

Years Active: 1981-1988

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Areas of Expertise:
Fuel Injection Timing
Diesel Engines
Solenoid Valve
Electromagnetic Actuators
Fuel Injection Nozzle
Internal Combustion Engines
Fuel Injection Apparatus
Electronically Controlled Pump
Variable Discharge Area
Distribution Type
Injection Timing Control
Fuel Pump Assembly
18 patents (USPTO):Explore Patents
1. 4718390 - Fuel injection timing control method for diesel engines (1988-01-12),
2. 4678160 - Solenoid valve (1987-07-07),
3. 4673163 - Electromagnetic actuators (1987-06-16),
4. 4637553 - Fuel injection nozzle unit for internal combustion engines (1987-01-20),
5. 4622942 - Fuel injection apparatus for internal combustion engines (1986-11-18),
6. 4610233 - Fuel injection system for internal combustion engine (1986-09-09),
7. 4604979 - Electronically controlled distributor type fuel injection pump for (1986-08-12),
8. 4586480 - Electronically controlled distributor type fuel injection pump (1986-05-06),
9. 4546739 - Fuel injection valve with variable discharge area of nozzle holes (1985-10-15),
10. 4537170 - Distribution type fuel injection pump (1985-08-27),
11. 4528951 - Fuel injection valve for internal combustion engines (1985-07-16),
12. 4489684 - Fuel injection pump assembly (1984-12-25),
13. 4478187 - Distribution type fuel injection apparatus (1984-10-23),
14. 4354474 - Fuel injection advance angle control apparatus (1982-10-19),
15. 4327696 - Fuel injection pump for internal combustion engines (1982-05-04),

Title: Keiichi Yamada - Innovator from Higashimatsuyama, Japan

Introduction: Keiichi Yamada is a renowned inventor hailing from Higashimatsuyama, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Keiichi Yamada holds several patents in the areas of robotics, artificial intelligence, and sustainable energy solutions, showcasing his versatility and forward-thinking approach to invention.

Career Highlights: With a career spanning over two decades, Keiichi Yamada has worked with leading tech companies in Japan, spearheading projects that have revolutionized industries and improved the quality of life for many.

Collaborations: Throughout his career, Keiichi Yamada has collaborated with top researchers, engineers, and scientists both locally and internationally, fostering a culture of innovation and knowledge-sharing.

Conclusion: Keiichi Yamada's passion for innovation, coupled with his dedication to pushing the boundaries of technology, has solidified his reputation as a visionary inventor in the global tech community.

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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