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For the Inventor, By the Inventor

Kanagawa, Japan

Toyoaki Nakagawa

This inventor holds 25 USPTO granted patents, primarily in Battery Technology. Top assignee: Nissan Motor Company Limited. Active years: 1982-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toyoaki Nakagawa. Retrieved from https://idiyas.com/inventor/toyoaki-nakagawa

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

Calculating rank
USPTO Granted Patents = 25

% Patents Active = 100.0

Average Co-Inventor Count = 2.3

ph-index = 11

Forward Citations = 325(Granted Patents)


Location History:

  • Yokosuka, JP (1984 - 1987)
  • Yokohama City, JP (1987)
  • Yokohama, JP (1982 - 1991)
  • Kanagawa, JP (1991 - 2000)
  • Chigasaki, JP (2000 - 2001)
  • Kanagawa-ken, JP (2001)

Company Filing History:

goldMedal25 out of 13,420 
 
Nissan Motor Company Limited
 patents

Years Active: 1982-2001

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Areas of Expertise:
Manganese-Lithium Ion
Electrolytic Cell
Charge Control
Battery Detection
Fuel Supply Control
Catalytic Converter
Air/Fuel Ratio
Combustion Engine
Temperature Measurement
Fuel Injection
Exhaust Gas Recirculation
Flow Meter
25 patents (USPTO):Explore Patents
1. 6287727 - Manganese-lithium ion electrolytic cell (2001-09-11),
2. 6284404 - Battery and gas effluent system therefor (2001-09-04),
3. 6278280 - Battery inactivation detection device (2001-08-21),
4. 6160375 - Charge controlling device and method for multi-cell battery, and (2000-12-12),
5. 6127806 - State of charge indicator (2000-10-03),
6. 6078163 - Battery temperature increasing device and method (2000-06-20),
7. 5065716 - Fuel supply control system for internal combustion engine with improved (1991-11-19),
8. 5060473 - System for detecting deterioration of catalyst in catalytic converter (1991-10-29),
9. 5009210 - Air/fuel ratio feedback control system for lean combustion engine (1991-04-23),
10. 4949694 - Fuel supply control system for internal combustion engine (1990-08-21),
11. 4870937 - Air fuel mixture A/F control system (1989-10-03),
12. 4825837 - Air/fuel ratio control system having gain adjusting means (1989-05-02),
13. 4712529 - Air-fuel ratio control for transient modes of internal combustion engine (1987-12-15),
14. 4707241 - Air/fuel ratio control system including means to well time start of (1987-11-17),
15. 4706633 - Air/fuel ratio feedback control system adapted to temporary open-loop (1987-11-17),

Title: Innovative Contributions of Toyoaki Nakagawa in Battery Technology

Introduction: Toyoaki Nakagawa, based in Kanagawa-ken, Japan, is a notable inventor with an impressive portfolio, holding 25 patents to his name. His work focuses primarily on advancements in battery technology, contributing significantly to the automotive industry through his innovative solutions.

Latest Patents: Among his latest patents, Nakagawa has developed a manganese-lithium ion electrolytic cell. This invention features a positive electrode comprising granules of lithium manganate, enhanced with a first surface layer designed to allow the passage of lithium ions while blocking manganese ions. Another noteworthy patent pertains to a battery and gas effluent system. This innovative design includes a battery system housed in an enclosure, with each battery featuring a cell that utilizes a rolled lamination of positive and negative sheet electrodes. The gas effluent system is engineered to manage generated gases effectively, ensuring safety and efficiency within the vehicle's battery enclosure.

Career Highlights: Toyoaki Nakagawa is employed by Nissan Motor Company Limited, where he has made significant strides in enhancing electric vehicle performance and safety. His expertise in battery technology has positioned him as a key figure within the company, driving forward innovative solutions that aim to address the growing demands of electric mobility.

Collaborations: Throughout his career, Nakagawa has collaborated with esteemed colleagues such as Hideaki Horie and Mikio Kawai. These partnerships have fostered a productive environment for cross-disciplinary innovation, enabling the development of advanced technologies that can meet the challenges of modern automotive applications.

Conclusion: Toyoaki Nakagawa's work exemplifies the spirit of innovation in the field of battery technology. With a solid foundation in patenting groundbreaking inventions, he continues to contribute to the future of sustainable automotive design through his role at Nissan Motor Company Limited. His latest advancements in manganese-lithium ion batteries and gas effluent systems are just a glimpse into the potential of battery technology to revolutionize electric vehicles.

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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