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For the Inventor, By the Inventor

Obu, Japan

Masaki Uchiyama

This inventor holds 23 USPTO granted patents and 9 published patent applications and 4 EPO patents, primarily in Battery Management Systems. Top assignees: Denso Corporation, Toyota Jidosha Kabushiki Kaisha. Active years: 2018-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masaki Uchiyama. Retrieved from https://idiyas.com/inventor/masaki-uchiyama-8sjj9web

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

Calculating rank
USPTO Granted Patents = 23 

% Patents Active = 95.7


Average Co-Inventor Count = 3.9

ph-index = 2

Forward Citations = 11(Granted Patents)


Location History:

  • Obu, JP (2018 - 2022)
  • Kariya, JP (2019 - 2022)

Company Filing History:

goldMedal16 out of 20,443 
 
Denso Corporation
 patents
silverMedal9 out of 39,010 
 
Toyota Jidosha Kabushiki Kaisha
 patents
where one patent can have more than one assignee

Years Active: 2018-2026

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Areas of Expertise:
Battery Management
Thermal Runaway Detection
Battery Monitoring
Deterioration Evaluation
Charging Control
Lithium-Ion Battery
Battery System
Battery Measurement
Vehicle Control
Monitoring System
Non-Aqueous Electrolyte
Expansion Valves
23 patents (USPTO):Explore Patents
1. 12748155 - Battery remaining quantity estimation apparatus (2026-09-29),
2. 12687586 - Control device for secondary battery (2026-07-21),
3. 12638508 - Battery measurement apparatus (2026-05-26),
4. 12540985 - Detector and non-transitory computer readable medium for detecting sign of thermal runaway of secondary battery (2026-02-03),
5. 12519143 - Monitoring system (2026-01-06),
6. 12416679 - Battery monitoring apparatus (2025-09-16),
7. 12325286 - Attachment structure for expansion valves (2025-06-10),
8. 12296641 - Connection module (2025-05-13),
9. 12240338 - Power supply system including an electrical machine with its neutral point connected to a power supply unit (2025-03-04),
10. 12117494 - System and method for battery management (2024-10-15),
11. 12105153 - System and method for battery management (2024-10-01),
12. 11498420 - Vehicle and control method thereof (2022-11-15),
13. 11453310 - Display device for indicating the deterioration state of a secondary battery and the travelable distance of an electric or hybrid vehicle (2022-09-27),
14. 11374270 - Vehicle, deterioration evaluation device for secondary battery, and deterioration evaluation method for secondary battery (2022-06-28),
15. 11353514 - Battery system and SOC estimation method for secondary battery (2022-06-07),

Title: **Masaki Uchiyama: A Pioneer in Automotive Refrigeration Technologies**

Introduction

Masaki Uchiyama, an innovative inventor based in Obu, Japan, has made significant contributions to the field of automotive refrigeration. With a portfolio of 17 patents, Uchiyama has developed essential technologies that enhance the efficiency and functionality of vehicle air conditioning systems.

Latest Patents

Masaki Uchiyama's recent inventions include two notable patents. The first is an **attachment structure for expansion valves**, which features a housing that accommodates expansion valves used within a vehicle. This system incorporates a flow path essential for circulating heat medium in a heat pump cycle, effectively managing temperature control. The second patent, a **connection module**, connects various components of a refrigeration cycle. This module consists of a body containing a refrigerant flow path that integrates both high-temperature and low-temperature sides, allowing for the efficient management of refrigerant flow.

Career Highlights

Throughout his career, Masaki Uchiyama has worked with esteemed companies such as Denso Corporation and Toyota Jidosha Kabushiki Kaisha. His experience in these leading automotive firms has allowed him to push the boundaries of refrigeration technology and contribute to the advancement of vehicle air conditioning systems.

Collaborations

In his endeavors, Uchiyama has collaborated with notable colleagues, including Yoshihiro Uchida and Kazuki Kubo. These partnerships have facilitated the exchange of ideas and innovations, further driving the development of efficient automotive technologies.

Conclusion

Masaki Uchiyama stands out as a prominent inventor in the automotive industry, particularly in refrigeration technologies. His 17 patents reflect his commitment to innovation and excellence in enhancing vehicle air conditioning systems. As vehicles continue to evolve, Uchiyama's contributions will undoubtedly play a vital role in shaping the future of automotive climate control.

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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