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For the Inventor, By the Inventor

Tokyo, Japan

Toshifumi Nakamura

This inventor holds 22 USPTO granted patents and 5 published patent applications and 4 EPO patents, primarily in Internal Combustion Engines. Top assignees: Nec Corporation, Mitsubishi Electric Corporation, Sony Corporation. Active years: 1999-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshifumi Nakamura. Retrieved from https://idiyas.com/inventor/toshifumi-nakamura

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

USPTO Granted Patents = 22 

% Patents Active = 59.1

 

Average Co-Inventor Count = 2.5

ph-index = 2

Forward Citations = 63(Granted Patents)


Location History:

  • Minato-ku, JP (2014 - 2019)
  • Tokyo, JP (1999 - 2022)

Company Filing History:

goldMedal13 out of 36,684 
 
Nec Corporation
 patents
silverMedal8 out of 16,602 
 
Mitsubishi Electric Corporation
 patents
bronzeMedal1 out of 58,145 
 
Sony Corporation
 patents

Years Active: 1999-2026

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Areas of Expertise:
Power Conversion
Ignition Apparatus
Internal Combustion Engine
Combustion State Detection
Radio Communications
Base Station Control
Received Power Estimation
Spectrum Control
Wireless Communication
Communication Load Estimation
Electronic Device Manufacturing
22 patents (USPTO):Explore Patents
1. 12696822 - Power conversion device and manufacturing method therefor (2026-07-28),
2. 11473549 - Ignition apparatus (2022-10-18),
3. 11105311 - Ignition device for internal combustion engine (2021-08-31),
4. 10934991 - Internal combustion engine combustion state detecting device (2021-03-02),
5. 10859059 - Discharge state detecting apparatus of internal combustion engine (2020-12-08),
6. 10808673 - Control device and control method for internal combustion engine (2020-10-20),
7. 10499331 - Base station, radio communications system, base station control method, radio communications method and base station control program (2019-12-03),
8. 10364787 - Discharge stopping device (2019-07-30),
9. 10167841 - Internal-combustion-engine combustion state detecting apparatus (2019-01-01),
10. 10123267 - Base station, radio communications system, base station control method, radio communications method and base station control program (2018-11-06),
11. 9998937 - Method and device for estimating communication load, radio station and upper-level apparatus in radio communication system (2018-06-12),
12. 9693301 - Base station, radio communications system, base station control method, radio communications method and base station control program (2017-06-27),
13. 9386537 - Received power estimation device, received power estimate method, program, sensor station, and radio system (2016-07-05),
14. 9301166 - Base station, radio communications system, base station control method, radio communications method and base station control program (2016-03-29),
15. 9237574 - Spectrum control system, database, spectrum control method, and non-transitory computer-readable medium storing spectrum control program (2016-01-12),

Title: Toshifumi Nakamura: Innovator in Ignition Technology

Introduction

Toshifumi Nakamura is an accomplished inventor based in Tokyo, Japan, with a remarkable portfolio of 21 patents. His innovative work primarily revolves around ignition technology, enhancing the efficiency and accuracy of ignition systems in internal combustion engines.

Latest Patents

Among his latest innovations, Nakamura has developed an advanced ignition apparatus. This device aims to minimize the required number of connector pins and analog-to-digital converters while maintaining high detection accuracy. The ignition apparatus features multiple ignition plugs and coils for various cylinders, along with sophisticated switching devices and a primary-voltage-signal separator, effectively outputting composite primary signals for each cylinder.

Another notable invention by Nakamura is an ignition device specifically designed for internal combustion engines. This device comprises an ignition coil, a primary switch, and a secondary current adjuster. Its unique control system ensures that the current value during a crucial charging period is optimized, improving the functional reliability of ignition systems.

Career Highlights

Throughout his career, Toshifumi Nakamura has made significant contributions while working at prominent companies such as NEC Corporation and Mitsubishi Electric Corporation. His roles at these organizations have enabled him to innovate and refine ignition technologies that have substantial impacts on the automotive industry.

Collaborations

Collaboration has been key to Nakamura's success, as evidenced by his work alongside talented colleagues such as Kazushi Muraoka and Kojiro Hamabe. Their joint efforts have led to groundbreaking advancements in ignition systems, pushing the boundaries of what is possible within this critical technology sector.

Conclusion

Toshifumi Nakamura's dedication to innovation in ignition technology is evident through his extensive patent portfolio and collaborative spirit. As he continues to develop groundbreaking inventions, Nakamura not only enhances the efficiency of internal combustion engines but also contributes to the broader landscape of automotive technology. His work represents a significant advancement in the quest for more reliable and efficient ignition systems.

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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