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For the Inventor, By the Inventor

Tama, Japan

Kazuyoshi Serizawa

This inventor holds 62 USPTO granted patents and 7 published patent applications and 3 EPO patents, primarily in Vehicle Control Systems (CPC class G06F). Top assignees: Hitachi, Ltd., Hitachi Astemo Ltd., Hitachi Automotive Systems, Ltd.. Active years: 2001-2026.

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

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

USPTO Granted Patents = 62 

% Patents Active = 50.0

 

Average Co-Inventor Count = 3.1

ph-index = 7

Forward Citations = 206(Granted Patents)

Forward Citations (Not Self Cited) = 198(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Hadano, JP (2001 - 2005)
  • Yokohama, JP (2006)
  • Machida, JP (2006 - 2013)
  • Tama, JP (2009 - 2017)
  • Ibaraki, JP (2022 - 2023)
  • Tokyo, JP (2008 - 2024)
  • Hitachinaka, JP (2021 - 2024)

Company Filing History:

goldMedal41 out of 42,731 
 
Hitachi, Ltd.
 patents
silverMedal19 out of 1,495 
 
Hitachi Astemo Ltd.
 patents
bronzeMedal1 out of 2,028 
 
Hitachi Automotive Systems, Ltd.
 patents
4. 1 out of 365 
 
Hitachi Consumer Electronics Co., Ltd.
 patents
5. 1 out of 389 
 
Hitachi-Lg Data Storage, Inc.
 patents
where one patent can have more than one assignee

Years Active: 2001-2026

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Areas of Expertise:
Vehicle Control Device
Electronic Control Device
In-Vehicle Network System
Hypervisor
Storage System
Data Transfer Control
Software Management
Virtualization Controller
Information Processing
Load Equalization
Computing Efficiency
Search Processing System
62 patents (USPTO):Explore Patents
1. 12762043 - In-vehicle electronic control unit for program verification (2026-10-13),
2. 12752806 - Electronic control device and vehicle control system (2026-10-06),
3. 12536094 - Vehicle control device (2026-01-27),
4. 12534032 - Vehicle control device (2026-01-27),
5. 12500964 - Communication system, electronic control device, and communication method (2025-12-16),
6. 12374169 - Vehicle control device (2025-07-29),
7. 12373230 - Hypervisor and control device (2025-07-29),
8. 12117943 - Electronic control device (2024-10-15),
9. 12103546 - Vehicle control device (2024-10-01),
10. 12024183 - Vehicle control device and recording medium (2024-07-02),
11. 11947486 - Electronic computing device having improved computing efficiency (2024-04-02),
12. 11908199 - In-vehicle electronic control device (2024-02-20),
13. 11799598 - Vehicle control device and control method thereof (2023-10-24),
14. 11763035 - Software management device (2023-09-19),
15. 11645124 - Program execution control method and vehicle control device (2023-05-09),

Title: **Kazuyoshi Serizawa: Innovator and Inventor in Electronic Control Technologies**

Introduction

Kazuyoshi Serizawa, based in Tama, Japan, is a renowned inventor with an impressive portfolio of 55 patents. His work primarily focuses on electronic control devices and vehicle control technologies, contributing significantly to advancements in these fields.

Latest Patents

Among his latest innovations, Serizawa has developed an **Electronic Control Device** designed to ensure uninterrupted processing even in the event of abnormalities in the first control software. This device features a sophisticated memory structure that incorporates both first and second control software, as well as a CPU that manages these processes seamlessly. Furthermore, it includes specific buffering mechanisms that enhance performance and reliability.

Another significant invention is the **Vehicle Control Device**, which enhances energy efficiency by implementing a power-saving execution determination unit. This device intelligently transitions between normal and power-saving modes based on specific conditions, ensuring optimal energy use while providing necessary functionalities.

Career Highlights

Kazuyoshi Serizawa has had a distinguished career, working with esteemed companies such as Hitachi, Ltd. and Hitachi Astemo Ltd. Throughout his tenure, he has played a crucial role in developing technologies that have greatly influenced the electronics and automotive industries.

Collaborations

During his career, Serizawa has collaborated with notable professionals in the field, including Norio Shimozono and Naoko Iwami. These partnerships have allowed for fruitful exchanges of ideas and innovations, further elevating the impact of their collective work.

Conclusion

Kazuyoshi Serizawa's contributions to electronic and vehicle control technologies have marked significant strides in innovation. His 55 patents not only showcase his technical abilities but also reflect his commitment to improving efficiency and reliability in electronic devices. As an inventor, Serizawa continues to inspire future generations of engineers and innovators.

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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