Company Filing History:

13 out of 36,499

Toyota Jidosha Kabushiki Kaisha

where one patent can have more than one assignee

Years Active: 2006-2022

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13 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11428745 - Method of estimating deteriorated state of secondary battery and secondary battery system (2022-08-30),

2. 11193983 - Method of estimating deterioration state of secondary battery and secondary battery system (2021-12-07),

3. 11009556 - Method of estimating deteriorated state of secondary battery and secondary battery system (2021-05-18),

4. 10446849 - Nonaqueous electrolyte secondary battery (2019-10-15),

5. 10236537 - Non-aqueous electrolyte secondary battery (2019-03-19),

6. 9261565 - Method of testing secondary battery (2016-02-16),

7. 8727928 - Vehicle power transmission device (2014-05-20),

8. 8704489 - Battery system, vehicle, and battery mounted device (2014-04-22),

9. 8643341 - Battery system and automobile (2014-02-04),

10. 8507117 - Lithium ion secondary battery, assembled battery, vehicle, battery-equipped device, battery system, and method for detecting deterioration of lithium ion secondary battery (2013-08-13),

11. 8459134 - Vehicle oil pump (2013-06-11),

12. 8348800 - Vehicle power transmission device (2013-01-08),

13. 6995225 - Proton conduction material and method of manufacturing the same (2006-02-07),

Title: Hiroshi Hamaguchi: Innovator in Battery Technology

Introduction

Hiroshi Hamaguchi is a prominent inventor based in Toyota, Japan. He has made significant contributions to the field of battery technology, holding a total of 13 patents. His work focuses on methods for estimating the deteriorated state of secondary batteries, which is crucial for enhancing battery performance and longevity.

Latest Patents

Hamaguchi's latest patents include innovative methods for estimating the deteriorated state of secondary batteries and their systems. One method involves obtaining voltage and current data from the battery multiple times during a data acquisition period. This process includes calculating changes in current, temperature, and state of charge (SOC). By analyzing these changes, the method allows for the calculation of impedance components across different frequency bandwidths, utilizing Fourier transform techniques when the changes remain within allowable limits. Another patent outlines a systematic approach to performing Fast Fourier Transform (FFT) on battery voltage and current, determining conditions for calculating impedance components based on frequency ranges.

Career Highlights

Throughout his career, Hiroshi Hamaguchi has worked with notable companies such as Toyota Motor Corporation and Aisin Aw Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in battery technology.

Collaborations

Hamaguchi has collaborated with esteemed colleagues, including Yoshihiko Sasaki and Takanori Soejima. Their combined expertise has contributed to advancements in the field of battery systems.

Conclusion

Hiroshi Hamaguchi's work in battery technology exemplifies innovation and dedication to improving energy storage solutions. His patents and collaborations reflect a commitment to advancing the understanding and functionality of secondary batteries.

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5 patents (EPO):

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