Yoshiyuki Iwaki

This inventor holds 32 USPTO granted patents, primarily in Vehicle Generators. Top assignees: Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Denki K.k.. Active years: 1978-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshiyuki Iwaki. Retrieved from https://idiyas.com/inventor/yoshiyuki-iwaki

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

USPTO Granted Patents = 32

% Patents Active = 100.0

Average Co-Inventor Count = 2.0

ph-index = 9

Forward Citations = 328(Granted Patents)

Location History:

Himeji, JP (1978 - 1992)
Hyogo, JP (1980 - 1993)

Company Filing History:

30 out of 21,351

Mitsubishi Denki Kabushiki Kaisha

patents

2 out of 488

Mitsubishi Denki K.k.

patents

Years Active: 1978-1993

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Areas of Expertise:

AC Generator

Charging System

Voltage Regulator

Alternator

Battery Management

Electric Generator

Temperature Circuit

Waterproof Structure

Rolling Bearing

Stator Core

Power Supply

Noise Suppression

32 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5229672 - Method of adjusting the balance of the rotor of a vehicle AC generator (1993-07-20),

2. 5210480 - Control device of vehicle mounted alternator (1993-05-11),

3. 5099189 - Alternating current generator for vehicle (1992-03-24),

4. 4945272 - Alternator for motor vehicles (1990-07-31),

5. 4824336 - Vacuum pump (1989-04-25),

6. 4739204 - Liquid cooled a.c. vehicle generator (1988-04-19),

7. 4727307 - Control apparatus for vehicular generator (1988-02-23),

8. 4615626 - Rolling bearing device (1986-10-07),

9. 4612493 - Control device for charging generator (1986-09-16),

10. 4594631 - Temperature protective circuit for a charging generator (1986-06-10),

11. 4591278 - Waterproof ball bearing device (1986-05-27),

12. 4590415 - Control apparatus for charging generator (1986-05-20),

13. 4584516 - Charge display circuit (1986-04-22),

14. 4564799 - Two-battery power supply system for vehicles (1986-01-14),

15. 4543504 - Electric current rectifier (1985-09-24),

Title: Innovations of Yoshiyuki Iwaki: A Journey Through Patents and Collaborations

Introduction

Yoshiyuki Iwaki, an accomplished inventor based in Himeji, Japan, boasts an impressive portfolio of 32 patents. His work primarily focuses on advancements in vehicle technologies, especially in the domain of AC generators. Iwaki's latest innovations exhibit a blend of practicality and technical precision, reflecting his deep understanding of engineering mechanics.

Latest Patents

One of Yoshiyuki Iwaki's latest patents is titled "Method of adjusting the balance of the rotor of a vehicle AC generator." This innovative method details a process wherein the unbalance in the rotor is detected and subsequently addressed by drilling precision holes in the magnetic pole claws. This systematic approach allows for high accuracy in rotor balance adjustments, significantly improving the efficiency of vehicle AC generators.

Another noteworthy patent is the "Control device of vehicle mounted alternator." This invention includes a self-excited alternator designed for vehicle use, integrating sophisticated controls such as field current detection and regulation to manage the alternator's output effectively. By employing a fixed reference value to monitor field current, this invention ensures that the alternator operates within safe parameters, enhancing the reliability of vehicle electrical systems.

Career Highlights

Throughout his career, Yoshiyuki Iwaki has contributed his talents to renowned companies, including Mitsubishi Electric Corporation and Mitsubishi Denki K.K. His extensive experience in these organizations has not only honed his technical skills but also paved the way for his significant contributions to industrial advancements.

Collaborations

Iwaki has collaborated with several notable individuals in the field, including Akio Matsumoto and Ryozo Kuroda. These partnerships have facilitated innovative brainstorming and contributed to the successful development of groundbreaking technologies within the automotive sector.

Conclusion

In conclusion, Yoshiyuki Iwaki exemplifies the spirit of innovation, significantly impacting vehicle technology through his extensive patent portfolio. His latest inventions, along with his collaborative efforts, highlight his commitment to advancing engineering practices. As the automotive field continues to evolve, the contributions of inventors like Iwaki will be pivotal in shaping the future of vehicle technologies.

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]