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For the Inventor, By the Inventor

Aichi, Japan

Takao Akatsuka

This inventor holds 24 USPTO granted patents, primarily in Vehicle Safety Systems. Top assignees: Toyota Jidosha Kabushiki Kaisha, Toyota Jidosha Kogyo Kabushiki Kaisha, Nippondenso Co., Ltd.. Active years: 1978-2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takao Akatsuka. Retrieved from https://idiyas.com/inventor/takao-akatsuka

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

USPTO Granted Patents = 24

% Patents Active = 100.0

Average Co-Inventor Count = 2.8

ph-index = 12

Forward Citations = 318(Granted Patents)


Location History:

  • Togocho, JP (1984)
  • Toyota, JP (1978 - 1987)
  • Aichi, JP (1984 - 1995)
  • Aichi-gun, JP (2000 - 2001)
  • Aichi-ken, JP (1996 - 2002)

Company Filing History:

goldMedal18 out of 38,912 
 
Toyota Jidosha Kabushiki Kaisha
 patents
silverMedal6 out of 1,838 
 
Toyota Jidosha Kogyo Kabushiki Kaisha
 patents
bronzeMedal3 out of 3,252 
 
Nippondenso Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1978-2002

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Areas of Expertise:
Passive Restraint
Anti-Theft System
Engine Control
Oxygen Sensor
Temperature Controller
Air-Fuel Ratio
Automatic Engine Stop
Vehicle Diagnosis
24 patents (USPTO):Explore Patents
1. 6347268 - Activation control apparatus for passive vehicle occupant restraint and method of controlling activation of passive vehicle occupant restraint (2002-02-12),
2. 6293583 - Apparatus for activating passive safety device (2001-09-25),
3. 6170864 - Activation control apparatus for passive vehicle occupant restraint and method of controlling activation of passive vehicle occupant restraint (2001-01-09),
4. 6154132 - Display system of a theft preventing apparatus having two kinds of theft (2000-11-28),
5. 6133649 - Vehicle anti-theft system and method using switching device provided in (2000-10-17),
6. 5553488 - Diagnosis apparatus for vehicle control system (1996-09-10),
7. 5454259 - Failure detecting apparatus in temperature controller of air-fuel ratio (1995-10-03),
8. 4694809 - Method and system for internal combustion engine oxygen sensor heating (1987-09-22),
9. 4655182 - Method and system for internal combustion engine oxygen sensor heating (1987-04-07),
10. 4651700 - Method and apparatus for controlling air-fuel ration in internal (1987-03-24),
11. 4626337 - Oxygen sensor (1986-12-02),
12. 4611562 - Method and system for internal combustion engine oxygen sensor heating (1986-09-16),
13. 4602600 - Method of controlling diesel engine (1986-07-29),
14. 4569748 - Oxygen sensor (1986-02-11),
15. 4563991 - Engine air/fuel ratio control method and system selectively providing (1986-01-14),

Title: The Innovative Contributions of Takao Akatsuka in Vehicle Safety Technology

Introduction: Takao Akatsuka, a prolific inventor based in Aichi, Japan, has made significant contributions to vehicle safety technology. With a remarkable portfolio of 24 patents, his inventions focus on enhancing passive occupant restraint systems, ensuring safety for vehicle passengers in the event of a collision.

Latest Patents: Among his latest inventions, Akatsuka developed an activation control apparatus for passive vehicle occupant restraints, which introduces a method for timely activation based on collision dynamics. This innovative device utilizes a floor sensor that measures deceleration G and processes this measurement through an arithmetic unit to determine a function f(G). A conditional activation unit then employs a threshold value T that varies with the velocity of non-stationary objects to decide when to send an activation signal to a driving circuit. This ensures that the passive restraint system can respond rapidly and effectively to collisions. Another significant invention is the apparatus for activating a passive safety device, which incorporates squibs and current controllers for managing electric currents from both on-vehicle and off-vehicle power supplies during a crash scenario. These patents exemplify Akatsuka’s commitment to enhancing automotive safety through innovative engineering.

Career Highlights: Akatsuka's professional journey includes notable tenures at leading automotive companies such as Toyota Motor Corporation and Toyota Engineering Society. His rich experience at these organizations has undoubtedly influenced his inventive journey and led to the development of ground-breaking safety technologies.

Collaborations: Throughout his career, Takao Akatsuka has collaborated with talented professionals, including Jiro Nakano and Takao Ishibashi. These partnerships have fostered a creative environment conducive to innovation, resulting in several successful patented technologies aimed at improving passenger safety in vehicles.

Conclusion: Takao Akatsuka's contributions to vehicle occupant safety through his inventions and patents reflect a deep commitment to innovation and engineering excellence. As the automotive industry continues to advance, his work serves as a cornerstone for developing safer vehicle technologies, ensuring enhanced protection for passengers worldwide.

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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