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For the Inventor, By the Inventor

Numazu, Japan

Kazuyoshi Kishibata

This inventor holds 27 USPTO granted patents, primarily in Engine Control Systems. Top assignee: Kokusan Denki Co., Ltd.. Active years: 2003-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuyoshi Kishibata. Retrieved from https://idiyas.com/inventor/kazuyoshi-kishibata

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

USPTO Granted Patents = 27

% Patents Active = 48.1

Average Co-Inventor Count = 2.3

ph-index = 7

Forward Citations = 139(Granted Patents)


Location History:

  • Numzau, JP (2004)
  • Numazu, JP (2003 - 2014)

Company Filing History:

goldMedal27 out of 180 
 
Kokusan Denki Co., Ltd.
 patents

Years Active: 2003-2014

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Areas of Expertise:
Rotary Electrical Machine
Electric Power Control
Engine Starting Method
Starter Generator
Marine Engine Control
Power Trim Unit
Internal Combustion Engine
Fuel Injection Control
Throttle Opening Estimation
Electronic Control System
Vehicle Power Generator
Operating State Detection
27 patents (USPTO):Explore Patents
1. 8810052 - Control device for rotary electrical machine (2014-08-19),
2. 8115289 - Onboard electric power control device (2012-02-14),
3. 7891330 - Engine starting method and device (2011-02-22),
4. 7888828 - Starter generator (2011-02-15),
5. 7878173 - Control device for marine engine (2011-02-01),
6. 7462082 - Control device for power trim unit for outboard engine (2008-12-09),
7. 7443044 - Engine control device (2008-10-28),
8. 7412953 - Engine control device (2008-08-19),
9. 7372677 - Control apparatus for internal combustion engine-driven vehicle having power supply unit (2008-05-13),
10. 7295016 - Electric leakage detection system (2007-11-13),
11. 7289901 - Vehicle-mounted power generator set (2007-10-30),
12. 7149621 - Control device for engine driven vehicle incorporating generator (2006-12-12),
13. 7149620 - Control device for engine driven vehicle incorporating generator (2006-12-12),
14. 7140356 - Engine throttle opening degree area estimation method, as well as engine acceleration detection method and device and engine fuel injection control method and device using the estimation method (2006-11-28),
15. 7133762 - Control device for engine driven vehicle incorporating generator (2006-11-07),

Title: Profile of Kazuyoshi Kishibata: Innovator in Electric Power Control

Introduction: Kazuyoshi Kishibata, based in Numazu, Japan, is a prolific inventor with an impressive portfolio of 27 patents. His work primarily focuses on innovative solutions in electric power control systems, particularly in the application of rotary electrical machines.

Latest Patents: Among his latest inventions is a control device for rotary electrical machines, which functions both as a motor and a power generator. This device includes a sophisticated power conversion circuit that operates as an inverter, supplying drive current from a battery, and as a rectifier for managing power generation outputs. Another significant patent is the onboard electric power control device. This innovative device integrates a power unit, control unit, and power source unit, reflecting advanced engineering for effective energy management in various applications.

Career Highlights: Kishibata’s career is highlighted by his contributions to Kokusan Denki Co., Ltd., where his expertise in electric power systems has driven significant advancements in the industry. His advancements in technology foster greater efficiency and reliability in electric power applications.

Collaborations: Throughout his career, Kishibata has collaborated with esteemed colleagues such as Hiroyasu Sato and Yuichi Kitagawa. Their combined efforts have led to the realization of cutting-edge technologies and products that enhance the capabilities of electrical systems.

Conclusion: Kazuyoshi Kishibata stands out as a key innovator in the field of electric power control. His patents not only underscore his technical expertise but also contribute to advancements in energy management solutions. As technology continues to evolve, Kishibata’s inventions pave the way for more efficient and reliable electrical 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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