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For the Inventor, By the Inventor

Kariya, Japan

Kazushige Okumoto

This inventor holds 16 USPTO granted patents and 5 EPO patents. Top assignee: Denso Corporation. Active years: 2007-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazushige Okumoto. Retrieved from https://idiyas.com/inventor/kazushige-okumoto

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

USPTO Granted Patents = 16

% Patents Active = 37.5

 

Average Co-Inventor Count = 3.3

ph-index = 7

Forward Citations = 166(Granted Patents)


Company Filing History:

goldMedal16 out of 20,407 
 
Denso Corporation
 patents

Years Active: 2007-2021

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16 patents (USPTO):Explore Patents
1. 11038453 - Rotating electric machine drive system (2021-06-15),
2. 8793061 - Control device for controlling automatic engine stop and start (2014-07-29),
3. 8510019 - Control device of automatic engine stop and start (2013-08-13),
4. 8428855 - System for controlling starter for starting internal combustion engine (2013-04-23),
5. 8299639 - Starter for starting internal combustion engine (2012-10-30),
6. 8196558 - System for restarting internal combustion engine when engine restart request occurs (2012-06-12),
7. 8171908 - Engine start system for use in idle stop system for automotive vehicle (2012-05-08),
8. 8079340 - System for restarting internal combustion engine when engine restart request occurs (2011-12-20),
9. 8069832 - System for restarting internal combustion engine when engine restart request occurs (2011-12-06),
10. 8036815 - System for restarting internal combustion engine when engine restart request occurs (2011-10-11),
11. 7671508 - Automotive alternator having improved structure for effectively cooling field coil (2010-03-02),
12. 7573175 - Tandem AC generator for vehicle (2009-08-11),
13. 7564156 - Vehicle-use tandem electric rotating machine (2009-07-21),
14. 7420313 - Tandem type rotary generator generating two voltages (2008-09-02),
15. 7337687 - Starter having pinion-rotation-restricting mechanism for use in automotive vehicle (2008-03-04),

Title: Kazushige Okumoto - Innovator in Electric Drive Systems

Introduction

Kazushige Okumoto, an accomplished inventor based in Kariya, Japan, has made significant contributions to the field of electrical engineering. With a remarkable portfolio of 16 patents, he is known for his innovative work in rotating electric machine drive systems and control devices for engines.

Latest Patents

One of Okumoto's latest patents is a **Rotating Electric Machine Drive System**. This system includes a rotating electric machine equipped with a rotor featuring one magnetic pole made of permanent magnets and a salient pole section that is magnetically convex radially. It also comprises a stator wound with a multiphase stator winding, an inverter responsible for supplying electric power to the stator winding, and a control unit that manages the energization current of the inverters. The control unit is designed to perform energization control that synchronizes a fundamental wave current at a frequency aligned with the rotor's rotational speed, along with a harmonic current that is three times the fundamental frequency. This innovative approach creates a stator magnetic field with a specified lead or delay phase relative to the rotor's third-order magnetic field.

Another one of his significant patents is the **Control Device for Controlling Automatic Engine Stop and Start**. This device innovatively addresses fuel injection without cranking under certain engine-speed conditions. It efficiently manages cranking operations based on the synchronization of rotation speeds between the pinion and ring gears when engine conditions fall within predetermined ranges. This control device is a testament to Okumoto's commitment to enhancing vehicle efficiency and performance.

Career Highlights

Kazushige Okumoto currently works at Denso Corporation, a leading global automotive supplier known for its innovative solutions in mobility. His role within the company has allowed him to spearhead forward-thinking projects that push the boundaries of technology in the automotive sector.

Collaborations

Throughout his career, Okumoto has collaborated with notable coworkers, including Akira Kato and Masami Niimi. These partnerships have been instrumental in fostering innovation and bringing forth new technological advancements within Denso Corporation.

Conclusion

Kazushige Okumoto stands out as a key figure in the world of electrical engineering and automotive technology. His contributions through patents and collaborative efforts continue to shape the future of electric drive systems and control devices, demonstrating the profound impact of innovation on the automotive industry.

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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