Hisashi Ohki

This inventor holds 14 USPTO granted patents, plus 1 CIPO patent and 9 EPO patents, primarily in Internal Combustion Engines. Top assignees: Toyota Jidosha Kabushiki Kaisha, Toyota Jidosha Kogyo Kabushiki Kaisha, Nippon Soken, Inc.. Active years: 1980-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hisashi Ohki. Retrieved from https://idiyas.com/inventor/hisashi-ohki

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

Calculating rank

USPTO Granted Patents = 14

% Patents Active = 42.9

CIPO Patents = 1 (Patent Applications = 1)

EPO Patents = 9 (Patent Applications = 4)

Average Co-Inventor Count = 4.1

ph-index = 6

Forward Citations = 107(Granted Patents)

Location History:

Toyota, JP (2008)
Numadu, JP (2011)
Numazu, JP (1980 - 2020)

Company Filing History:

11 out of 39,010

Toyota Jidosha Kabushiki Kaisha

patents

3 out of 1,838

Toyota Jidosha Kogyo Kabushiki Kaisha

where one patent can have more than one assignee

Years Active: 1980-2020

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Areas of Expertise:

Pressure Ring

Flow Rate Controller

Exhaust Gas System

Fuel Injection System

Exhaust Gas Purification

Turbo Charger

Air-Fuel Ratio Control

Multi-Cylinder Engine

Combustion Chamber

Emissions Control

Control Method

Fuel Injection Control

14 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10605366 - Pressure ring (2020-03-31),

2. 9488135 - Flow rate controller of internal combustion engine (2016-11-08),

3. 8332129 - Internal combustion engine exhaust gas system and control method of the same (2012-12-11),

4. 8261755 - Fuel injection system of compression ignition internal combustion engine (2012-09-11),

5. 8131449 - Fuel injection control apparatus and fuel injection control method for internal combustion engine (2012-03-06),

6. 7861686 - Fuel injection control apparatus and fuel injection control method (2011-01-04),

7. 7464542 - Exhaust gas purification system for internal combustion engine (2008-12-16),

8. 7246485 - Exhaust gas purifying device and method for internal combustion engine (2007-07-24),

9. 7165394 - Exhaust gas purification system for internal combustion engine (2007-01-23),

10. 6922988 - Exhaust emission control apparatus and method for internal combustion engine (2005-08-02),

11. 5996347 - Variable-nozzle type turbo charger (1999-12-07),

12. 4400944 - Air-fuel ratio control method and apparatus for internal combustion (1983-08-30),

13. 4237826 - Multi-cylinder internal combustion engine equipped with an accumulation (1980-12-09),

14. 4191135 - Combustion chamber of an internal combustion engine (1980-03-04),

Title: The Innovative Journey of Hisashi Ohki

Introduction: Hisashi Ohki is a renowned inventor hailing from Numazu, Japan, known for his groundbreaking contributions to various fields through his inventive spirit and dedication to innovation.

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

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

Collaborations: Throughout his career, Hisashi Ohki has collaborated with top engineers, scientists, and designers from around the world, fostering a culture of creativity and excellence in all his projects.

Conclusion: Hisashi Ohki's passion for innovation and his relentless drive to push the boundaries of what is possible make him a true pioneer in the world of inventions, leaving a lasting impact on the technological landscape.

Profile summary based on public USPTO records.